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7,241 | Commonwealth Heads of Government Meeting | The Commonwealth Heads of Government Meeting (CHOGM; /ˈtʃɒɡəm/ or/ˈtʃoʊm/) is a biennial summit meeting of the governmental leaders from all Commonwealth nations. Despite the name, the head of state may be present in the meeting instead of the head of government, especially among semi-presidential states. Every two years the meeting is held in a different member state and is chaired by that nation's respective prime minister or president, who becomes the Commonwealth Chair-in-Office until the next meeting. Queen Elizabeth II, who was the Head of the Commonwealth, attended every CHOGM beginning with Ottawa in 1973 until Perth in 2011, although her formal participation only began in 1997. She was represented by the Prince of Wales at the 2013 meeting as the 87-year-old monarch was curtailing long-distance travel. The Queen attended the 2015 summit in Malta and the 2018 summit (delayed by one year) in London, but was represented again by the Prince of Wales at the 2022 meeting (delayed by two years) in Rwanda.
The first CHOGM was held in 1971 in Singapore and there have been 26 held in total: the most recent was held in Kigali, Rwanda. They are held once every two years, although this pattern has occasionally been interrupted. They are held around the Commonwealth, rotating by invitation amongst its members.
In the past, CHOGMs have attempted to orchestrate common policies on certain contentious issues and current events, with a special focus on issues affecting member nations. CHOGMs have discussed the continuation of apartheid rule in South Africa and how to end it, military coups in Pakistan and Fiji, and allegations of electoral fraud in Zimbabwe. Sometimes the member states agree on a common idea or solution and release a joint statement declaring their opinion. More recently, beginning at the 1997 CHOGM, the meeting has had an official theme, set by the host nation, on which the primary discussions have been focused.
The meetings originated with the leaders of the self-governing colonies of the British Empire. The First Colonial Conference in 1887 was followed by periodic meetings, known as Imperial Conferences from 1907, of government leaders of the Empire. The development of the independence of the dominions, and the creation of a number of new dominions, as well as the invitation of Southern Rhodesia (which also attended as a sui generis colony), changed the nature of the meetings. As the dominion leaders asserted themselves more and more at the meetings, it became clear that the time for 'imperial' conferences was over.
From the ashes of the Second World War, seventeen Commonwealth Prime Ministers' Conferences were held between 1944 and 1969. Of these, sixteen were held in London, reflecting then-prevailing views of the Commonwealth as the continuation of the Empire and the centralisation of power in the British Commonwealth Office (the one meeting outside London, in Lagos, was an extraordinary meeting held in January 1966 to co-ordinate policies towards Rhodesia). Two supplementary meetings were also held during this period: a Commonwealth Statesmen's meeting to discuss peace terms in April 1945, and a Commonwealth Economic Conference in 1952.
The 1960s saw an overhaul of the Commonwealth. The swift expansion of the Commonwealth after decolonisation saw the newly independent countries demand the creation of the Commonwealth Secretariat, and the United Kingdom, in response, successfully founding the Commonwealth Foundation. This decentralisation of power demanded a reformulation of the meetings. Instead of the meetings always being held in London, they would rotate across the membership, subject to countries' ability to host the meetings: beginning with Singapore in 1971. They were also renamed the 'Commonwealth Heads of Government Meetings' to reflect the growing diversity of the constitutional structures in the Commonwealth.
The core of the CHOGM are the executive sessions, which are the formal gatherings of the heads of government to do business. However, the majority of the important decisions are held not in the main meetings themselves, but at the informal 'retreats': introduced at the second CHOGM, in Ottawa, by Prime Minister of Canada Pierre Trudeau, but reminiscent of the excursions to Chequers or Dorneywood in the days of the Prime Ministers' Conferences. Only the head of the delegation and their spouse and one additional person attend the retreats. The additional person may be of any capacity (personal, political, security, etc.) but only has occasional and intermittent access to the head of the delegation. It is usually at the retreat where, isolated from their advisers, the heads resolve the most intransigent issues: leading to the Gleneagles Agreement in 1977, the Lusaka Declaration in 1979, the Langkawi Declaration in 1989, the Millbrook Programme in 1995, the Aso Rock Declaration in 2003, and the Colombo Declaration on Sustainable, Inclusive and Equitable Development in 2013.
The 'fringe' of civil society organisations, including the Commonwealth Family and local groups, adds a cultural dimension to the event, and brings the CHOGM a higher media profile and greater acceptance by the local population. First officially recognised at Limassol in 1993, these events, spanning a longer period than the meeting itself, have, to an extent, preserved the length of the CHOGM: but only in the cultural sphere. Other meetings, such as those of the Commonwealth Ministerial Action Group, Commonwealth Business Council, and respective foreign ministers, have also dealt with business away from the heads of government themselves.
As the scope of the CHOGM has expanded beyond the meetings of the heads of governments themselves, the CHOGMs have become progressively shorter, and their business compacted into less time. The 1971 CHOGM lasted for nine days, and the 1977 and 1991 CHOGMs for seven days each. However, Harare's epochal CHOGM was the last to last a week; the 1993 CHOGM lasted for five days, and the contentious 1995 CHOGM for only three-and-a-half. The 2005 and subsequent conferences were held over two to two-and-a-half-days. However, recent CHOGMs have also featured several days of pre-summit Commonwealth Forums on business, women, youth, as well as the Commonwealth People's Forum and meetings of foreign ministers.
During the 1980s, CHOGMs were dominated by calls for the Commonwealth to impose sanctions on South Africa to pressure the country to end apartheid. The division between Britain, during the government of Margaret Thatcher which resisted the call for sanctions and African Commonwealth countries, and the rest of the Commonwealth was intense at times and led to speculation that the organisation might collapse. According to one of Margaret Thatcher's former aides, Mrs. Thatcher, very privately, used to say that CHOGM stood for "Compulsory Handouts to Greedy Mendicants." According to his daughter, Denis Thatcher also referred to CHOGM as standing for 'Coons Holidaying on Government Money'.
In 2011, British Prime Minister David Cameron informed the British House of Commons that his proposals to reform the rules governing royal succession, a change which would require the approval of all sixteen Commonwealth realms, was approved at the 28–30 October CHOGM in Perth, subsequently referred to as the Perth Agreement.
Rwanda joined the Commonwealth in 2009 despite the Commonwealth Human Rights Initiative's (CHRI) finding that "the state of governance and human rights in Rwanda does not satisfy Commonwealth standards", and that it "does not therefore qualify for admission". Both the CHRI and Human Rights Watch have found that respect for democracy and human rights in Rwanda has declined since the country joined the Commonwealth. There have been calls for the Commonwealth to stand up for democracy and human rights in Rwanda at the 2022 CHOGM.
Under the Millbrook Commonwealth Action Programme, each CHOGM is responsible for renewing the remit of the Commonwealth Ministerial Action Group, whose responsibility it is to uphold the Harare Declaration on the core political principles of the Commonwealth.
A bomb exploded at the Sydney Hilton Hotel, the venue for the February 1978 Commonwealth Heads of Government Regional Meeting. Twelve foreign heads of government were staying in the hotel at the time. Most delegates were evacuated by Royal Australian Air Force helicopters and the meeting was moved to Bowral, protected by 800 soldiers of the Australian Army.
As the convocation of heads of governments and permanent Commonwealth staff and experts, CHOGMs are the highest institution of action in the Commonwealth, and rare occasions on which Commonwealth leaders all come together. CHOGMs have been the venues of many of the Commonwealth's most dramatic events. Robert Mugabe announced Zimbabwe's immediate withdrawal from the Commonwealth at the 2003 CHOGM, and Nigeria's execution of Ken Saro-Wiwa and eight others on the first day of the 1995 CHOGM led to that country's suspension.
It has also been the trigger of a number of events that have shaken participating countries domestically. The departure of Uganda's President Milton Obote to the 1971 CHOGM allowed Idi Amin to overthrow Obote's government. Similarly, President James Mancham's attendance of the 1977 CHOGM gave Prime Minister France-Albert René the opportunity to seize power in the Seychelles.
* The 1986 meeting was a special session that fell outside the usual timetable. The 1986 CHOGM convened to discuss the issue of apartheid and only involved a handful of heads of government. Though not a CHOGM, Commonwealth Heads of Government met in 2023 on the occasion of the Coronation of King Charles III. The meeting consisted of a meeting at Marlborough House and a reception at Buckingham Palace. According to a statement issued by the Commonwealth Secretariat "After their meeting with the King, leaders from the Commonwealth's 56 member states then met privately to discuss issues of mutual interest, including initiatives to support the empowerment of young people, as this year has been designated the Commonwealth Year of Youth."
The 25th CHOGM was originally scheduled for Vanuatu in 2017 but the country rescinded its offer to host after Cyclone Pam devastated the country's infrastructure in March 2015. The meeting was rescheduled for the United Kingdom in the spring of 2018 which also resulted in the 26th CHOGM, originally scheduled for 2019, to be rescheduled for 22–27 June 2020. However, due to the coronavirus pandemic, the 26th CHOGM was again postponed to 2022. | [
{
"paragraph_id": 0,
"text": "The Commonwealth Heads of Government Meeting (CHOGM; /ˈtʃɒɡəm/ or/ˈtʃoʊm/) is a biennial summit meeting of the governmental leaders from all Commonwealth nations. Despite the name, the head of state may be present in the meeting instead of the head of government, especially among semi-presidential states. Every two years the meeting is held in a different member state and is chaired by that nation's respective prime minister or president, who becomes the Commonwealth Chair-in-Office until the next meeting. Queen Elizabeth II, who was the Head of the Commonwealth, attended every CHOGM beginning with Ottawa in 1973 until Perth in 2011, although her formal participation only began in 1997. She was represented by the Prince of Wales at the 2013 meeting as the 87-year-old monarch was curtailing long-distance travel. The Queen attended the 2015 summit in Malta and the 2018 summit (delayed by one year) in London, but was represented again by the Prince of Wales at the 2022 meeting (delayed by two years) in Rwanda.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The first CHOGM was held in 1971 in Singapore and there have been 26 held in total: the most recent was held in Kigali, Rwanda. They are held once every two years, although this pattern has occasionally been interrupted. They are held around the Commonwealth, rotating by invitation amongst its members.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In the past, CHOGMs have attempted to orchestrate common policies on certain contentious issues and current events, with a special focus on issues affecting member nations. CHOGMs have discussed the continuation of apartheid rule in South Africa and how to end it, military coups in Pakistan and Fiji, and allegations of electoral fraud in Zimbabwe. Sometimes the member states agree on a common idea or solution and release a joint statement declaring their opinion. More recently, beginning at the 1997 CHOGM, the meeting has had an official theme, set by the host nation, on which the primary discussions have been focused.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The meetings originated with the leaders of the self-governing colonies of the British Empire. The First Colonial Conference in 1887 was followed by periodic meetings, known as Imperial Conferences from 1907, of government leaders of the Empire. The development of the independence of the dominions, and the creation of a number of new dominions, as well as the invitation of Southern Rhodesia (which also attended as a sui generis colony), changed the nature of the meetings. As the dominion leaders asserted themselves more and more at the meetings, it became clear that the time for 'imperial' conferences was over.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "From the ashes of the Second World War, seventeen Commonwealth Prime Ministers' Conferences were held between 1944 and 1969. Of these, sixteen were held in London, reflecting then-prevailing views of the Commonwealth as the continuation of the Empire and the centralisation of power in the British Commonwealth Office (the one meeting outside London, in Lagos, was an extraordinary meeting held in January 1966 to co-ordinate policies towards Rhodesia). Two supplementary meetings were also held during this period: a Commonwealth Statesmen's meeting to discuss peace terms in April 1945, and a Commonwealth Economic Conference in 1952.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "The 1960s saw an overhaul of the Commonwealth. The swift expansion of the Commonwealth after decolonisation saw the newly independent countries demand the creation of the Commonwealth Secretariat, and the United Kingdom, in response, successfully founding the Commonwealth Foundation. This decentralisation of power demanded a reformulation of the meetings. Instead of the meetings always being held in London, they would rotate across the membership, subject to countries' ability to host the meetings: beginning with Singapore in 1971. They were also renamed the 'Commonwealth Heads of Government Meetings' to reflect the growing diversity of the constitutional structures in the Commonwealth.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "The core of the CHOGM are the executive sessions, which are the formal gatherings of the heads of government to do business. However, the majority of the important decisions are held not in the main meetings themselves, but at the informal 'retreats': introduced at the second CHOGM, in Ottawa, by Prime Minister of Canada Pierre Trudeau, but reminiscent of the excursions to Chequers or Dorneywood in the days of the Prime Ministers' Conferences. Only the head of the delegation and their spouse and one additional person attend the retreats. The additional person may be of any capacity (personal, political, security, etc.) but only has occasional and intermittent access to the head of the delegation. It is usually at the retreat where, isolated from their advisers, the heads resolve the most intransigent issues: leading to the Gleneagles Agreement in 1977, the Lusaka Declaration in 1979, the Langkawi Declaration in 1989, the Millbrook Programme in 1995, the Aso Rock Declaration in 2003, and the Colombo Declaration on Sustainable, Inclusive and Equitable Development in 2013.",
"title": "Structure"
},
{
"paragraph_id": 7,
"text": "The 'fringe' of civil society organisations, including the Commonwealth Family and local groups, adds a cultural dimension to the event, and brings the CHOGM a higher media profile and greater acceptance by the local population. First officially recognised at Limassol in 1993, these events, spanning a longer period than the meeting itself, have, to an extent, preserved the length of the CHOGM: but only in the cultural sphere. Other meetings, such as those of the Commonwealth Ministerial Action Group, Commonwealth Business Council, and respective foreign ministers, have also dealt with business away from the heads of government themselves.",
"title": "Structure"
},
{
"paragraph_id": 8,
"text": "As the scope of the CHOGM has expanded beyond the meetings of the heads of governments themselves, the CHOGMs have become progressively shorter, and their business compacted into less time. The 1971 CHOGM lasted for nine days, and the 1977 and 1991 CHOGMs for seven days each. However, Harare's epochal CHOGM was the last to last a week; the 1993 CHOGM lasted for five days, and the contentious 1995 CHOGM for only three-and-a-half. The 2005 and subsequent conferences were held over two to two-and-a-half-days. However, recent CHOGMs have also featured several days of pre-summit Commonwealth Forums on business, women, youth, as well as the Commonwealth People's Forum and meetings of foreign ministers.",
"title": "Structure"
},
{
"paragraph_id": 9,
"text": "During the 1980s, CHOGMs were dominated by calls for the Commonwealth to impose sanctions on South Africa to pressure the country to end apartheid. The division between Britain, during the government of Margaret Thatcher which resisted the call for sanctions and African Commonwealth countries, and the rest of the Commonwealth was intense at times and led to speculation that the organisation might collapse. According to one of Margaret Thatcher's former aides, Mrs. Thatcher, very privately, used to say that CHOGM stood for \"Compulsory Handouts to Greedy Mendicants.\" According to his daughter, Denis Thatcher also referred to CHOGM as standing for 'Coons Holidaying on Government Money'.",
"title": "Issues"
},
{
"paragraph_id": 10,
"text": "In 2011, British Prime Minister David Cameron informed the British House of Commons that his proposals to reform the rules governing royal succession, a change which would require the approval of all sixteen Commonwealth realms, was approved at the 28–30 October CHOGM in Perth, subsequently referred to as the Perth Agreement.",
"title": "Issues"
},
{
"paragraph_id": 11,
"text": "Rwanda joined the Commonwealth in 2009 despite the Commonwealth Human Rights Initiative's (CHRI) finding that \"the state of governance and human rights in Rwanda does not satisfy Commonwealth standards\", and that it \"does not therefore qualify for admission\". Both the CHRI and Human Rights Watch have found that respect for democracy and human rights in Rwanda has declined since the country joined the Commonwealth. There have been calls for the Commonwealth to stand up for democracy and human rights in Rwanda at the 2022 CHOGM.",
"title": "Issues"
},
{
"paragraph_id": 12,
"text": "Under the Millbrook Commonwealth Action Programme, each CHOGM is responsible for renewing the remit of the Commonwealth Ministerial Action Group, whose responsibility it is to uphold the Harare Declaration on the core political principles of the Commonwealth.",
"title": "Agenda"
},
{
"paragraph_id": 13,
"text": "A bomb exploded at the Sydney Hilton Hotel, the venue for the February 1978 Commonwealth Heads of Government Regional Meeting. Twelve foreign heads of government were staying in the hotel at the time. Most delegates were evacuated by Royal Australian Air Force helicopters and the meeting was moved to Bowral, protected by 800 soldiers of the Australian Army.",
"title": "Incidents"
},
{
"paragraph_id": 14,
"text": "As the convocation of heads of governments and permanent Commonwealth staff and experts, CHOGMs are the highest institution of action in the Commonwealth, and rare occasions on which Commonwealth leaders all come together. CHOGMs have been the venues of many of the Commonwealth's most dramatic events. Robert Mugabe announced Zimbabwe's immediate withdrawal from the Commonwealth at the 2003 CHOGM, and Nigeria's execution of Ken Saro-Wiwa and eight others on the first day of the 1995 CHOGM led to that country's suspension.",
"title": "Incidents"
},
{
"paragraph_id": 15,
"text": "It has also been the trigger of a number of events that have shaken participating countries domestically. The departure of Uganda's President Milton Obote to the 1971 CHOGM allowed Idi Amin to overthrow Obote's government. Similarly, President James Mancham's attendance of the 1977 CHOGM gave Prime Minister France-Albert René the opportunity to seize power in the Seychelles.",
"title": "Incidents"
},
{
"paragraph_id": 16,
"text": "* The 1986 meeting was a special session that fell outside the usual timetable. The 1986 CHOGM convened to discuss the issue of apartheid and only involved a handful of heads of government. Though not a CHOGM, Commonwealth Heads of Government met in 2023 on the occasion of the Coronation of King Charles III. The meeting consisted of a meeting at Marlborough House and a reception at Buckingham Palace. According to a statement issued by the Commonwealth Secretariat \"After their meeting with the King, leaders from the Commonwealth's 56 member states then met privately to discuss issues of mutual interest, including initiatives to support the empowerment of young people, as this year has been designated the Commonwealth Year of Youth.\"",
"title": "List of meetings"
},
{
"paragraph_id": 17,
"text": "The 25th CHOGM was originally scheduled for Vanuatu in 2017 but the country rescinded its offer to host after Cyclone Pam devastated the country's infrastructure in March 2015. The meeting was rescheduled for the United Kingdom in the spring of 2018 which also resulted in the 26th CHOGM, originally scheduled for 2019, to be rescheduled for 22–27 June 2020. However, due to the coronavirus pandemic, the 26th CHOGM was again postponed to 2022.",
"title": "List of meetings"
}
] | The Commonwealth Heads of Government Meeting is a biennial summit meeting of the governmental leaders from all Commonwealth nations. Despite the name, the head of state may be present in the meeting instead of the head of government, especially among semi-presidential states. Every two years the meeting is held in a different member state and is chaired by that nation's respective prime minister or president, who becomes the Commonwealth Chair-in-Office until the next meeting. Queen Elizabeth II, who was the Head of the Commonwealth, attended every CHOGM beginning with Ottawa in 1973 until Perth in 2011, although her formal participation only began in 1997. She was represented by the Prince of Wales at the 2013 meeting as the 87-year-old monarch was curtailing long-distance travel. The Queen attended the 2015 summit in Malta and the 2018 summit in London, but was represented again by the Prince of Wales at the 2022 meeting in Rwanda. The first CHOGM was held in 1971 in Singapore and there have been 26 held in total: the most recent was held in Kigali, Rwanda. They are held once every two years, although this pattern has occasionally been interrupted. They are held around the Commonwealth, rotating by invitation amongst its members. In the past, CHOGMs have attempted to orchestrate common policies on certain contentious issues and current events, with a special focus on issues affecting member nations. CHOGMs have discussed the continuation of apartheid rule in South Africa and how to end it, military coups in Pakistan and Fiji, and allegations of electoral fraud in Zimbabwe. Sometimes the member states agree on a common idea or solution and release a joint statement declaring their opinion. More recently, beginning at the 1997 CHOGM, the meeting has had an official theme, set by the host nation, on which the primary discussions have been focused. | 2001-11-26T06:55:55Z | 2023-12-26T13:35:44Z | [
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7,242 | Chinese classics | Chinese classic texts or canonical texts (simplified Chinese: 中国古典典籍; traditional Chinese: 中國古典典籍; pinyin: Zhōngguó gǔdiǎn diǎnjí) or simply dianji (典籍) refers to the Chinese texts which originated before the imperial unification by the Qin dynasty in 221 BC, particularly the "Four Books and Five Classics" of the Neo-Confucian tradition, themselves a customary abridgment of the "Thirteen Classics". All of these pre-Qin texts were written in either Old or Classical Chinese. All three canons are collectively known as the Classics (經; 经; jīng; 'warp thread').
The term Chinese classic texts may be broadly used in reference to texts which were written in vernacular Chinese or it may be narrowly used in reference to texts which were written in the classical Chinese which was current until the fall of the last imperial dynasty, the Qing, in 1912. These texts can include shi (史, historical works), zi (子, "Masters texts", philosophical works usually associated with an individual and later systematised into schools of thought but also including works on agriculture, medicine, mathematics, astronomy, divination, art criticism, and other miscellaneous writings) and ji (集, literary works) as well as the cultivation of jing, "essence" in Chinese medicine.
In the Ming and Qing dynasties, the Four Books and Five Classics were the subjects of mandatory study by those Confucian scholars who wished to take the imperial exams and needed to pass them in order to become government officials. Any political discussion was full of references to this background, and one could not be one of the literati (or, in some periods, even a military officer) without having memorized them. Generally, children first memorized the Chinese characters of the "Three Character Classic" and the "Hundred Family Surnames" and they then went on to memorize the other classics. The literate elite therefore shared a common culture and set of values.
According to Sima Qian's Shiji (Records of the Grand Historian), after Qin Shi Huangdi, the first emperor of China, unified China in 221 BC, his chancellor Li Si suggested suppressing intellectual discourse to unify thought and political opinion. This was alleged to have destroyed philosophical treatises of the Hundred Schools of Thought, with the goal of strengthening the official Qin governing philosophy of Legalism. This traditional account is anachronistic in that Legalism was not yet a defined category of thought during the Qin period, and the "schools of thought" model is no longer considered to be an accurate portrayal of the intellectual history of pre-imperial China. According to the Shiji, three categories of books were viewed by Li Si to be most dangerous politically. These were poetry, history (especially historical records of other states than Qin), and philosophy. The ancient collection of poetry and historical records contained many stories concerning the ancient virtuous rulers. Li Si believed that if the people were to read these works they were likely to invoke the past and become dissatisfied with the present. The reason for opposing various schools of philosophy was that they advocated political ideas often incompatible with the totalitarian regime.
Modern historians doubt the details of the story, which first appeared more than a century later. Michael Nylan observes that despite its mythic significance, the Burning of the Books legend does not bear close scrutiny. Nylan suggests that the reason Han dynasty scholars charged the Qin with destroying the Confucian Five Classics was partly to "slander" the state they defeated and partly because Han scholars misunderstood the nature of the texts, for it was only after the founding of the Han that Sima Qian labeled the Five Classics as "Confucian". Nylan also points out that the Qin court appointed classical scholars who were specialists on the Classic of Poetry and the Book of Documents, which meant that these texts would have been exempted, and that the Book of Rites and the Zuozhuan did not contain the glorification of defeated feudal states which the First Emperor gave as his reason for destroying them. Nylan further suggests that the story might be based on the fact that the Qin palace was razed in 207 BCE and many books were undoubtedly lost at that time. Martin Kern adds that Qin and early Han writings frequently cite the Classics, especially the Documents and the Classic of Poetry, which would not have been possible if they had been burned, as reported.
The Five Classics (五經; Wǔjīng) are five pre-Qin Chinese books that became part of the state-sponsored curriculum during the Western Han dynasty, which adopted Confucianism as its official ideology. It was during this period that the texts first began to be considered together as a set collection, and to be called collectively the "Five Classics". Several of the texts were already prominent by the Warring States period, but the literature culture at the time did not lend itself to clear boundaries between works, so a high degree of variance between individual witnesses of the same title was common, as well as considerable intertextuality and cognate chapters between different titles. Mencius, the leading Confucian scholar of the time, regarded the Spring and Autumn Annals as being equally important as the semi-legendary chronicles of earlier periods.
Up to the Western Han, authors would typically list the Classics in the order Poems-Documents-Rituals-Changes-Spring and Autumn. However, from the Eastern Han the default order instead became Changes-Documents-Poems-Rituals-Spring and Autumn.
In 26 BCE, at the command of the emperor, Liu Xiang (77–6 BC) compiled the first catalogue of the imperial library, the Abstracts (別錄; 别录; Bielu), and is the first known editor of the Classic of Mountains and Seas (Shanhaijing), which was finished by his son. Liu also edited collections of stories and biographies, the Biographies of Exemplary Women (Lienüzhuan). He has long erroneously been credited with compiling the Biographies of the Immortals (Liexian Zhuan), a collection of Taoist hagiographies and hymns. Liu Xiang was also a poet - he is credited with the "Nine Laments" ("Jiu Tan") that appears in the anthology Chu Ci'.
The works edited and compiled by Liu Xiang include:
This work was continued by his son, Liu Xin, who finally completed the task after his father's death. The transmitted corpus of these classical texts all derives from the versions edited down by Liu Xiang and Liu Xin. Michael Nylan has characterised the scope of the Liu pair's editing as having been so vast that it affects our understanding of China's pre-imperial period to the same degree as the Qin unification does.
The Four Books (四書; Sìshū) are Chinese classic texts illustrating the core value and belief systems in Confucianism. They were selected by Zhu Xi in the Song dynasty to serve as general introduction to Confucian thought, and they were, in the Ming and Qing dynasties, made the core of the official curriculum for the civil service examinations. They are:
The official curriculum of the imperial examination system from the Song dynasty onward are the Thirteen Classics. In total, these works total to more than 600,000 characters that must be memorized in order to pass the examination. Moreover, these works are accompanied by extensive commentary and annotation, containing approximately 300 million characters by some estimates.
It is often difficult or impossible to precisely date pre-Qin works beyond their being "pre-Qin", a period of 1000 years. Information in ancient China was often by oral tradition and passed down from generations before so was rarely written down, so the older the composition of the texts may not be in a chronological order as that which was arranged and presented by their attributed "authors".
The below list is therefore organized in the order which is found in the Complete Library of the Four Treasuries, the encyclopaedic collation of the works found in the imperial library of the Qing dynasty under the Qianlong Emperor. The Complete Library of the Four Treasuries classifies all works into 4 top-level branches: the Confucian Classics and their secondary literature; history; philosophy; and poetry. There are sub-categories within each branch, but due to the small number of pre-Qin works in the Classics, History and Poetry branches, the sub-categories are only reproduced for the Philosophy branch.
The philosophical typology of individual pre-imperial texts has in every case been applied retroactively, rather than consciously within the text itself. The categorisation of works of these genera has been highly contentious, especially in modern times. Many modern scholars reject the continued usefulness of this model as a heuristic for understanding the shape of the intellectual landscape of the time. | [
{
"paragraph_id": 0,
"text": "Chinese classic texts or canonical texts (simplified Chinese: 中国古典典籍; traditional Chinese: 中國古典典籍; pinyin: Zhōngguó gǔdiǎn diǎnjí) or simply dianji (典籍) refers to the Chinese texts which originated before the imperial unification by the Qin dynasty in 221 BC, particularly the \"Four Books and Five Classics\" of the Neo-Confucian tradition, themselves a customary abridgment of the \"Thirteen Classics\". All of these pre-Qin texts were written in either Old or Classical Chinese. All three canons are collectively known as the Classics (經; 经; jīng; 'warp thread').",
"title": ""
},
{
"paragraph_id": 1,
"text": "The term Chinese classic texts may be broadly used in reference to texts which were written in vernacular Chinese or it may be narrowly used in reference to texts which were written in the classical Chinese which was current until the fall of the last imperial dynasty, the Qing, in 1912. These texts can include shi (史, historical works), zi (子, \"Masters texts\", philosophical works usually associated with an individual and later systematised into schools of thought but also including works on agriculture, medicine, mathematics, astronomy, divination, art criticism, and other miscellaneous writings) and ji (集, literary works) as well as the cultivation of jing, \"essence\" in Chinese medicine.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In the Ming and Qing dynasties, the Four Books and Five Classics were the subjects of mandatory study by those Confucian scholars who wished to take the imperial exams and needed to pass them in order to become government officials. Any political discussion was full of references to this background, and one could not be one of the literati (or, in some periods, even a military officer) without having memorized them. Generally, children first memorized the Chinese characters of the \"Three Character Classic\" and the \"Hundred Family Surnames\" and they then went on to memorize the other classics. The literate elite therefore shared a common culture and set of values.",
"title": ""
},
{
"paragraph_id": 3,
"text": "According to Sima Qian's Shiji (Records of the Grand Historian), after Qin Shi Huangdi, the first emperor of China, unified China in 221 BC, his chancellor Li Si suggested suppressing intellectual discourse to unify thought and political opinion. This was alleged to have destroyed philosophical treatises of the Hundred Schools of Thought, with the goal of strengthening the official Qin governing philosophy of Legalism. This traditional account is anachronistic in that Legalism was not yet a defined category of thought during the Qin period, and the \"schools of thought\" model is no longer considered to be an accurate portrayal of the intellectual history of pre-imperial China. According to the Shiji, three categories of books were viewed by Li Si to be most dangerous politically. These were poetry, history (especially historical records of other states than Qin), and philosophy. The ancient collection of poetry and historical records contained many stories concerning the ancient virtuous rulers. Li Si believed that if the people were to read these works they were likely to invoke the past and become dissatisfied with the present. The reason for opposing various schools of philosophy was that they advocated political ideas often incompatible with the totalitarian regime.",
"title": "Qin dynasty"
},
{
"paragraph_id": 4,
"text": "Modern historians doubt the details of the story, which first appeared more than a century later. Michael Nylan observes that despite its mythic significance, the Burning of the Books legend does not bear close scrutiny. Nylan suggests that the reason Han dynasty scholars charged the Qin with destroying the Confucian Five Classics was partly to \"slander\" the state they defeated and partly because Han scholars misunderstood the nature of the texts, for it was only after the founding of the Han that Sima Qian labeled the Five Classics as \"Confucian\". Nylan also points out that the Qin court appointed classical scholars who were specialists on the Classic of Poetry and the Book of Documents, which meant that these texts would have been exempted, and that the Book of Rites and the Zuozhuan did not contain the glorification of defeated feudal states which the First Emperor gave as his reason for destroying them. Nylan further suggests that the story might be based on the fact that the Qin palace was razed in 207 BCE and many books were undoubtedly lost at that time. Martin Kern adds that Qin and early Han writings frequently cite the Classics, especially the Documents and the Classic of Poetry, which would not have been possible if they had been burned, as reported.",
"title": "Qin dynasty"
},
{
"paragraph_id": 5,
"text": "The Five Classics (五經; Wǔjīng) are five pre-Qin Chinese books that became part of the state-sponsored curriculum during the Western Han dynasty, which adopted Confucianism as its official ideology. It was during this period that the texts first began to be considered together as a set collection, and to be called collectively the \"Five Classics\". Several of the texts were already prominent by the Warring States period, but the literature culture at the time did not lend itself to clear boundaries between works, so a high degree of variance between individual witnesses of the same title was common, as well as considerable intertextuality and cognate chapters between different titles. Mencius, the leading Confucian scholar of the time, regarded the Spring and Autumn Annals as being equally important as the semi-legendary chronicles of earlier periods.",
"title": "Western Han dynasty"
},
{
"paragraph_id": 6,
"text": "Up to the Western Han, authors would typically list the Classics in the order Poems-Documents-Rituals-Changes-Spring and Autumn. However, from the Eastern Han the default order instead became Changes-Documents-Poems-Rituals-Spring and Autumn.",
"title": "Western Han dynasty"
},
{
"paragraph_id": 7,
"text": "In 26 BCE, at the command of the emperor, Liu Xiang (77–6 BC) compiled the first catalogue of the imperial library, the Abstracts (別錄; 别录; Bielu), and is the first known editor of the Classic of Mountains and Seas (Shanhaijing), which was finished by his son. Liu also edited collections of stories and biographies, the Biographies of Exemplary Women (Lienüzhuan). He has long erroneously been credited with compiling the Biographies of the Immortals (Liexian Zhuan), a collection of Taoist hagiographies and hymns. Liu Xiang was also a poet - he is credited with the \"Nine Laments\" (\"Jiu Tan\") that appears in the anthology Chu Ci'.",
"title": "Western Han dynasty"
},
{
"paragraph_id": 8,
"text": "The works edited and compiled by Liu Xiang include:",
"title": "Western Han dynasty"
},
{
"paragraph_id": 9,
"text": "This work was continued by his son, Liu Xin, who finally completed the task after his father's death. The transmitted corpus of these classical texts all derives from the versions edited down by Liu Xiang and Liu Xin. Michael Nylan has characterised the scope of the Liu pair's editing as having been so vast that it affects our understanding of China's pre-imperial period to the same degree as the Qin unification does.",
"title": "Western Han dynasty"
},
{
"paragraph_id": 10,
"text": "The Four Books (四書; Sìshū) are Chinese classic texts illustrating the core value and belief systems in Confucianism. They were selected by Zhu Xi in the Song dynasty to serve as general introduction to Confucian thought, and they were, in the Ming and Qing dynasties, made the core of the official curriculum for the civil service examinations. They are:",
"title": "Song dynasty"
},
{
"paragraph_id": 11,
"text": "The official curriculum of the imperial examination system from the Song dynasty onward are the Thirteen Classics. In total, these works total to more than 600,000 characters that must be memorized in order to pass the examination. Moreover, these works are accompanied by extensive commentary and annotation, containing approximately 300 million characters by some estimates.",
"title": "Ming dynasty"
},
{
"paragraph_id": 12,
"text": "It is often difficult or impossible to precisely date pre-Qin works beyond their being \"pre-Qin\", a period of 1000 years. Information in ancient China was often by oral tradition and passed down from generations before so was rarely written down, so the older the composition of the texts may not be in a chronological order as that which was arranged and presented by their attributed \"authors\".",
"title": "List of Classics"
},
{
"paragraph_id": 13,
"text": "The below list is therefore organized in the order which is found in the Complete Library of the Four Treasuries, the encyclopaedic collation of the works found in the imperial library of the Qing dynasty under the Qianlong Emperor. The Complete Library of the Four Treasuries classifies all works into 4 top-level branches: the Confucian Classics and their secondary literature; history; philosophy; and poetry. There are sub-categories within each branch, but due to the small number of pre-Qin works in the Classics, History and Poetry branches, the sub-categories are only reproduced for the Philosophy branch.",
"title": "List of Classics"
},
{
"paragraph_id": 14,
"text": "The philosophical typology of individual pre-imperial texts has in every case been applied retroactively, rather than consciously within the text itself. The categorisation of works of these genera has been highly contentious, especially in modern times. Many modern scholars reject the continued usefulness of this model as a heuristic for understanding the shape of the intellectual landscape of the time.",
"title": "List of Classics"
}
] | Chinese classic texts or canonical texts or simply dianji (典籍) refers to the Chinese texts which originated before the imperial unification by the Qin dynasty in 221 BC, particularly the "Four Books and Five Classics" of the Neo-Confucian tradition, themselves a customary abridgment of the "Thirteen Classics". All of these pre-Qin texts were written in either Old or Classical Chinese. All three canons are collectively known as the Classics. The term Chinese classic texts may be broadly used in reference to texts which were written in vernacular Chinese or it may be narrowly used in reference to texts which were written in the classical Chinese which was current until the fall of the last imperial dynasty, the Qing, in 1912. These texts can include shi, zi and ji as well as the cultivation of jing, "essence" in Chinese medicine. In the Ming and Qing dynasties, the Four Books and Five Classics were the subjects of mandatory study by those Confucian scholars who wished to take the imperial exams and needed to pass them in order to become government officials. Any political discussion was full of references to this background, and one could not be one of the literati without having memorized them. Generally, children first memorized the Chinese characters of the "Three Character Classic" and the "Hundred Family Surnames" and they then went on to memorize the other classics. The literate elite therefore shared a common culture and set of values. | 2001-11-26T14:11:25Z | 2023-11-08T03:03:23Z | [
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7,243 | Call centre | A call centre (Commonwealth spelling) or call center (American spelling; see spelling differences) is a managed capability that can be centralised or remote that is used for receiving or transmitting a large volume of enquiries by telephone. An inbound call centre is operated by a company to administer incoming product or service support or information enquiries from consumers. Outbound call centres are usually operated for sales purposes such as telemarketing, for solicitation of charitable or political donations, debt collection, market research, emergency notifications, and urgent/critical needs blood banks. A contact centre is a further extension to call centres telephony based capabilities, administers centralised handling of individual communications, including letters, faxes, live support software, social media, instant message, and email.
A call center was previously seen to be an open workspace for call center agents, with workstations that include a computer and display for each agent and connected to an inbound/outbound call management system, and one or more supervisor stations. It can be independently operated or networked with additional centers, often linked to a corporate computer network, including mainframes, microcomputer/servers and LANs.
The contact center is a central point from which all customer contacts are managed. Through contact centers, valuable information can be routed to the appropriate people or systems, contacts can be tracked and data may be gathered. It is generally a part of the company's customer relationship management infrastructure. The majority of large companies use contact centers as a means of managing their customer interactions. These centers can be operated by either an in-house department responsible or outsourcing customer interaction to a third-party agency (known as Outsourcing Call Centres).
Answering services, as known in the 1960s through the 1980s, earlier and slightly later, involved a business that specifically provided the service. Primarily by the use of an off-premises extension (OPX) for each subscribing business, connected at a switchboard at the answering service business, the answering service would answer the otherwise unattended phones of the subscribing businesses with a live operator. The live operator could take messages or relay information, doing so with greater human interactivity than a mechanical answering machine. Although undoubtedly more costly (the human service, the cost of setting up and paying the phone company for the OPX on a monthly basis), it had the advantage of being more ready to respond to the unique needs of after-hours callers. The answering service operators also had the option of calling the client and alerting them to particularly important calls.
The origins of call centers date back to the 1960s with the UK-based Birmingham Press and Mail, which installed Private Automated Business Exchanges (PABX) to have rows of agents handling customer contacts. By 1973, call centers received mainstream attention after Rockwell International patented its Galaxy Automatic Call Distributor (GACD) for a telephone booking system as well as the popularization of telephone headsets as seen on televised NASA Mission Control Center events.
During the late 1970s, call center technology expanded to include telephone sales, airline reservations, and banking systems. The term "call center" was first published and recognised by the Oxford English Dictionary in 1983. The 1980s experienced the development of toll-free telephone numbers to increase the efficiency of agents and overall call volume. Call centers increased with the deregulation of long-distance calling and growth in information-dependent industries.
As call centres expanded, workers in North America began to join unions such as the Communications Workers of America and the United Steelworkers. In Australia, the National Union of Workers represents unionised workers; their activities form part of the Australian labour movement. In Europe, UNI Global Union of Switzerland is involved in assisting unionisation in the call center industry, and in Germany Vereinte Dienstleistungsgewerkschaft represents call centre workers.
During the 1990s, call centres expanded internationally and developed into two additional subsets of communication: contact centres and outsourced bureau centres. A contact centre is a coordinated system of people, processes, technologies, and strategies that provides access to information, resources, and expertise, through appropriate channels of communication, enabling interactions that create value for the customer and organization. In contrast to in-house management, outsourced bureau contact centres are a model of contact centre that provide services on a "pay per use" model. The overheads of the contact centre are shared by many clients, thereby supporting a very cost effective model, especially for low volumes of calls. The modern contact centre includes automated call blending of inbound and outbound calls as well as predictive dialing capabilities, dramatically increasing agents' productivity. New implementations of more complex systems require highly skilled operational and management staff that can use multichannel online and offline tools to improve customer interactions.
Call centre technologies include: speech recognition software which allowed Interactive Voice Response (IVR) systems to handle first levels of customer support, text mining, natural language processing to allow better customer handling, agent training via interactive scripting and automatic mining using best practices from past interactions, support automation and many other technologies to improve agent productivity and customer satisfaction. Automatic lead selection or lead steering is also intended to improve efficiencies, both for inbound and outbound campaigns. This allows inbound calls to be directly routed to the appropriate agent for the task, whilst minimising wait times and long lists of irrelevant options for people calling in.
For outbound calls, lead selection allows management to designate what type of leads go to which agent based on factors including skill, socioeconomic factors, past performance, and percentage likelihood of closing a sale per lead.
The universal queue standardises the processing of communications across multiple technologies such as fax, phone, and email. The virtual queue provides callers with an alternative to waiting on hold when no agents are available to handle inbound call demand.
Historically, call centres have been built on Private branch exchange (PBX) equipment owned, hosted, and maintained by the call centre operator. The PBX can provide functions such as automatic call distribution, interactive voice response, and skills-based routing.
In a virtual call centre model, the call centre operator (business) pays a monthly or annual fee to a vendor that hosts the call centre telephony and data equipment in their own facility, cloud-based. In this model, the operator does not own, operate or host the equipment on which the call centre runs. Agents connect to the vendor's equipment through traditional PSTN telephone lines, or over voice over IP. Calls to and from prospects or contacts originate from or terminate at the vendor's data centre, rather than at the call centre operator's premises. The vendor's telephony equipment (at times data servers) then connects the calls to the call centre operator's agents.
Virtual call centre technology allows people to work from home or any other location instead of in a traditional, centralised, call centre location, which increasingly allows people 'on the go' or with physical or other disabilities to work from desired locations - i.e. not leaving their house. The only required equipment is Internet access, a workstation, and a softphone. If the virtual call centre software utilizes webRTC, a softphone is not required to dial. The companies are preferring Virtual Call Centre services due to cost advantage. Companies can start their call centre business immediately without installing the basic infrastructure like Dialer, ACD and IVRS.
Virtual call centres became increasingly used after the COVID-19 pandemic restricted businesses from operating with large groups of people working in close proximity.
Through the use of application programming interfaces (APIs), hosted and on-demand call centres that are built on cloud-based software as a service (SaaS) platforms can integrate their functionality with cloud-based applications for customer relationship management (CRM), lead management and more.
Developers use APIs to enhance cloud-based call centre platform functionality—including Computer telephony integration (CTI) APIs which provide basic telephony controls and sophisticated call handling from a separate application, and configuration APIs which enable graphical user interface (GUI) controls of administrative functions.
Call centres that use cloud computing use software that Gartner refers to as Contact Center as a Service" (or CCaaS, for short) that Gartner defines as "a software as a service (SaaS)-based application that enables customer service organizations to manage multichannel customer interactions holistically in terms of both customer experience and employee experience".
Outsourced call centres are often located in developing countries, where wages are significantly lower. These include the call centre industries in the Philippines, Bangladesh, and India.
Companies that regularly utilise outsourced contact centre services include British Sky Broadcasting and Orange in the telecommunications industry, Adidas in the sports and leisure sector, Audi in car manufacturing and charities such as the RSPCA.
The healthcare industry has used outbound call centre programmes for years to help manage billing, collections, and patient communication. The inbound call centre is a new and increasingly popular service for many types of healthcare facilities, including large hospitals. Inbound call centres can be outsourced or managed in-house.
These healthcare call centres are designed to help streamline communications, enhance patient retention and satisfaction, reduce expenses and improve operational efficiencies.
Many large hospitality companies such as the Hilton Hotels Corporation and Marriott International make use of call centres to manage reservations. These are known in the industry as "central reservations offices". Staff members at these call centres take calls from clients wishing to make reservations or other inquiries via a public number, usually a 1-800 number. These centres may operate as many as 24 hours per day, seven days a week, depending on the call volume the chain receives.
Queueing theory is a branch of mathematics in which models of service systems have been developed. A call centre can be seen as a queueing network and results from queueing theory such as the probability an arriving customer needs to wait before starting service useful for provisioning capacity. (Erlang's C formula is such a result for an M/M/c queue and approximations exist for an M/G/k queue.) Statistical analysis of call centre data has suggested arrivals are governed by an inhomogeneous Poisson process and jobs have a log-normal service time distribution. Simulation algorithms are increasingly being used to model call arrival, queueing and service levels.
Call centre operations have been supported by mathematical models beyond queueing, with operations research, which considers a wide range of optimisation problems seeking to reduce waiting times while keeping server utilisation and therefore efficiency high.
Call centres have received criticism for low pay rates and restrictive working practices for employees, which have been deemed as a dehumanising environment. Other research illustrates how call centre workers develop ways to counter or resist this environment by integrating local cultural sensibilities or embracing a vision of a new life. Most call centres provide electronic reports that outline performance metrics, quarterly highlights and other information about the calls made and received. This has the benefit of helping the company to plan the workload and time of its employees. However, it has also been argued that such close monitoring breaches the human right to privacy.
Complaints are often logged by callers who find the staff do not have enough skill or authority to resolve problems, as well as appearing apathetic. These concerns are due to a business process that exhibits levels of variability because the experience a customer gets and results a company achieves on a given call are dependent upon the quality of the agent. Call centres are beginning to address this by using agent-assisted automation to standardise the process all agents use. However, more popular alternatives are using personality and skill based approaches. The various challenges encountered by call operators are discussed by several authors.
Indian call centres have been the focus of several documentary films, the 2004 film Thomas L. Friedman Reporting: The Other Side of Outsourcing, the 2005 films John and Jane, Nalini by Day, Nancy by Night, and 1-800-India: Importing a White-Collar Economy, and the 2006 film Bombay Calling, among others. An Indian call centre is also the subject of the 2006 film Outsourced and a key location in the 2008 film, Slumdog Millionaire. The 2014 BBC fly on the wall documentary series The Call Centre gave an often distorted although humorous view of life in a Welsh call centre.
Appointment setting is a specialized function within call centres, where dedicated agents focus on facilitating and scheduling meetings between clients and businesses or sales representatives. This service is particularly prevalent in various industries such as financial services, healthcare, real estate, and B2B sales, where time-sensitive and personalized communications are essential for effective client engagement.
Lead generation is a vital aspect of call center operations, encompassing strategies and activities aimed at identifying potential customers or clients for businesses or sales representatives. It involves gathering information and generating interest among individuals or organizations who may have a potential interest in the products or services offered. | [
{
"paragraph_id": 0,
"text": "A call centre (Commonwealth spelling) or call center (American spelling; see spelling differences) is a managed capability that can be centralised or remote that is used for receiving or transmitting a large volume of enquiries by telephone. An inbound call centre is operated by a company to administer incoming product or service support or information enquiries from consumers. Outbound call centres are usually operated for sales purposes such as telemarketing, for solicitation of charitable or political donations, debt collection, market research, emergency notifications, and urgent/critical needs blood banks. A contact centre is a further extension to call centres telephony based capabilities, administers centralised handling of individual communications, including letters, faxes, live support software, social media, instant message, and email.",
"title": ""
},
{
"paragraph_id": 1,
"text": "A call center was previously seen to be an open workspace for call center agents, with workstations that include a computer and display for each agent and connected to an inbound/outbound call management system, and one or more supervisor stations. It can be independently operated or networked with additional centers, often linked to a corporate computer network, including mainframes, microcomputer/servers and LANs.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The contact center is a central point from which all customer contacts are managed. Through contact centers, valuable information can be routed to the appropriate people or systems, contacts can be tracked and data may be gathered. It is generally a part of the company's customer relationship management infrastructure. The majority of large companies use contact centers as a means of managing their customer interactions. These centers can be operated by either an in-house department responsible or outsourcing customer interaction to a third-party agency (known as Outsourcing Call Centres).",
"title": ""
},
{
"paragraph_id": 3,
"text": "Answering services, as known in the 1960s through the 1980s, earlier and slightly later, involved a business that specifically provided the service. Primarily by the use of an off-premises extension (OPX) for each subscribing business, connected at a switchboard at the answering service business, the answering service would answer the otherwise unattended phones of the subscribing businesses with a live operator. The live operator could take messages or relay information, doing so with greater human interactivity than a mechanical answering machine. Although undoubtedly more costly (the human service, the cost of setting up and paying the phone company for the OPX on a monthly basis), it had the advantage of being more ready to respond to the unique needs of after-hours callers. The answering service operators also had the option of calling the client and alerting them to particularly important calls.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "The origins of call centers date back to the 1960s with the UK-based Birmingham Press and Mail, which installed Private Automated Business Exchanges (PABX) to have rows of agents handling customer contacts. By 1973, call centers received mainstream attention after Rockwell International patented its Galaxy Automatic Call Distributor (GACD) for a telephone booking system as well as the popularization of telephone headsets as seen on televised NASA Mission Control Center events.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "During the late 1970s, call center technology expanded to include telephone sales, airline reservations, and banking systems. The term \"call center\" was first published and recognised by the Oxford English Dictionary in 1983. The 1980s experienced the development of toll-free telephone numbers to increase the efficiency of agents and overall call volume. Call centers increased with the deregulation of long-distance calling and growth in information-dependent industries.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "As call centres expanded, workers in North America began to join unions such as the Communications Workers of America and the United Steelworkers. In Australia, the National Union of Workers represents unionised workers; their activities form part of the Australian labour movement. In Europe, UNI Global Union of Switzerland is involved in assisting unionisation in the call center industry, and in Germany Vereinte Dienstleistungsgewerkschaft represents call centre workers.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "During the 1990s, call centres expanded internationally and developed into two additional subsets of communication: contact centres and outsourced bureau centres. A contact centre is a coordinated system of people, processes, technologies, and strategies that provides access to information, resources, and expertise, through appropriate channels of communication, enabling interactions that create value for the customer and organization. In contrast to in-house management, outsourced bureau contact centres are a model of contact centre that provide services on a \"pay per use\" model. The overheads of the contact centre are shared by many clients, thereby supporting a very cost effective model, especially for low volumes of calls. The modern contact centre includes automated call blending of inbound and outbound calls as well as predictive dialing capabilities, dramatically increasing agents' productivity. New implementations of more complex systems require highly skilled operational and management staff that can use multichannel online and offline tools to improve customer interactions.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "Call centre technologies include: speech recognition software which allowed Interactive Voice Response (IVR) systems to handle first levels of customer support, text mining, natural language processing to allow better customer handling, agent training via interactive scripting and automatic mining using best practices from past interactions, support automation and many other technologies to improve agent productivity and customer satisfaction. Automatic lead selection or lead steering is also intended to improve efficiencies, both for inbound and outbound campaigns. This allows inbound calls to be directly routed to the appropriate agent for the task, whilst minimising wait times and long lists of irrelevant options for people calling in.",
"title": "Technology"
},
{
"paragraph_id": 9,
"text": "For outbound calls, lead selection allows management to designate what type of leads go to which agent based on factors including skill, socioeconomic factors, past performance, and percentage likelihood of closing a sale per lead.",
"title": "Technology"
},
{
"paragraph_id": 10,
"text": "The universal queue standardises the processing of communications across multiple technologies such as fax, phone, and email. The virtual queue provides callers with an alternative to waiting on hold when no agents are available to handle inbound call demand.",
"title": "Technology"
},
{
"paragraph_id": 11,
"text": "Historically, call centres have been built on Private branch exchange (PBX) equipment owned, hosted, and maintained by the call centre operator. The PBX can provide functions such as automatic call distribution, interactive voice response, and skills-based routing.",
"title": "Technology"
},
{
"paragraph_id": 12,
"text": "In a virtual call centre model, the call centre operator (business) pays a monthly or annual fee to a vendor that hosts the call centre telephony and data equipment in their own facility, cloud-based. In this model, the operator does not own, operate or host the equipment on which the call centre runs. Agents connect to the vendor's equipment through traditional PSTN telephone lines, or over voice over IP. Calls to and from prospects or contacts originate from or terminate at the vendor's data centre, rather than at the call centre operator's premises. The vendor's telephony equipment (at times data servers) then connects the calls to the call centre operator's agents.",
"title": "Technology"
},
{
"paragraph_id": 13,
"text": "Virtual call centre technology allows people to work from home or any other location instead of in a traditional, centralised, call centre location, which increasingly allows people 'on the go' or with physical or other disabilities to work from desired locations - i.e. not leaving their house. The only required equipment is Internet access, a workstation, and a softphone. If the virtual call centre software utilizes webRTC, a softphone is not required to dial. The companies are preferring Virtual Call Centre services due to cost advantage. Companies can start their call centre business immediately without installing the basic infrastructure like Dialer, ACD and IVRS.",
"title": "Technology"
},
{
"paragraph_id": 14,
"text": "Virtual call centres became increasingly used after the COVID-19 pandemic restricted businesses from operating with large groups of people working in close proximity.",
"title": "Technology"
},
{
"paragraph_id": 15,
"text": "Through the use of application programming interfaces (APIs), hosted and on-demand call centres that are built on cloud-based software as a service (SaaS) platforms can integrate their functionality with cloud-based applications for customer relationship management (CRM), lead management and more.",
"title": "Technology"
},
{
"paragraph_id": 16,
"text": "Developers use APIs to enhance cloud-based call centre platform functionality—including Computer telephony integration (CTI) APIs which provide basic telephony controls and sophisticated call handling from a separate application, and configuration APIs which enable graphical user interface (GUI) controls of administrative functions.",
"title": "Technology"
},
{
"paragraph_id": 17,
"text": "Call centres that use cloud computing use software that Gartner refers to as Contact Center as a Service\" (or CCaaS, for short) that Gartner defines as \"a software as a service (SaaS)-based application that enables customer service organizations to manage multichannel customer interactions holistically in terms of both customer experience and employee experience\".",
"title": "Technology"
},
{
"paragraph_id": 18,
"text": "Outsourced call centres are often located in developing countries, where wages are significantly lower. These include the call centre industries in the Philippines, Bangladesh, and India.",
"title": "Technology"
},
{
"paragraph_id": 19,
"text": "Companies that regularly utilise outsourced contact centre services include British Sky Broadcasting and Orange in the telecommunications industry, Adidas in the sports and leisure sector, Audi in car manufacturing and charities such as the RSPCA.",
"title": "Technology"
},
{
"paragraph_id": 20,
"text": "The healthcare industry has used outbound call centre programmes for years to help manage billing, collections, and patient communication. The inbound call centre is a new and increasingly popular service for many types of healthcare facilities, including large hospitals. Inbound call centres can be outsourced or managed in-house.",
"title": "Industries"
},
{
"paragraph_id": 21,
"text": "These healthcare call centres are designed to help streamline communications, enhance patient retention and satisfaction, reduce expenses and improve operational efficiencies.",
"title": "Industries"
},
{
"paragraph_id": 22,
"text": "Many large hospitality companies such as the Hilton Hotels Corporation and Marriott International make use of call centres to manage reservations. These are known in the industry as \"central reservations offices\". Staff members at these call centres take calls from clients wishing to make reservations or other inquiries via a public number, usually a 1-800 number. These centres may operate as many as 24 hours per day, seven days a week, depending on the call volume the chain receives.",
"title": "Industries"
},
{
"paragraph_id": 23,
"text": "Queueing theory is a branch of mathematics in which models of service systems have been developed. A call centre can be seen as a queueing network and results from queueing theory such as the probability an arriving customer needs to wait before starting service useful for provisioning capacity. (Erlang's C formula is such a result for an M/M/c queue and approximations exist for an M/G/k queue.) Statistical analysis of call centre data has suggested arrivals are governed by an inhomogeneous Poisson process and jobs have a log-normal service time distribution. Simulation algorithms are increasingly being used to model call arrival, queueing and service levels.",
"title": "Evaluation"
},
{
"paragraph_id": 24,
"text": "Call centre operations have been supported by mathematical models beyond queueing, with operations research, which considers a wide range of optimisation problems seeking to reduce waiting times while keeping server utilisation and therefore efficiency high.",
"title": "Evaluation"
},
{
"paragraph_id": 25,
"text": "Call centres have received criticism for low pay rates and restrictive working practices for employees, which have been deemed as a dehumanising environment. Other research illustrates how call centre workers develop ways to counter or resist this environment by integrating local cultural sensibilities or embracing a vision of a new life. Most call centres provide electronic reports that outline performance metrics, quarterly highlights and other information about the calls made and received. This has the benefit of helping the company to plan the workload and time of its employees. However, it has also been argued that such close monitoring breaches the human right to privacy.",
"title": "Criticism"
},
{
"paragraph_id": 26,
"text": "Complaints are often logged by callers who find the staff do not have enough skill or authority to resolve problems, as well as appearing apathetic. These concerns are due to a business process that exhibits levels of variability because the experience a customer gets and results a company achieves on a given call are dependent upon the quality of the agent. Call centres are beginning to address this by using agent-assisted automation to standardise the process all agents use. However, more popular alternatives are using personality and skill based approaches. The various challenges encountered by call operators are discussed by several authors.",
"title": "Criticism"
},
{
"paragraph_id": 27,
"text": "Indian call centres have been the focus of several documentary films, the 2004 film Thomas L. Friedman Reporting: The Other Side of Outsourcing, the 2005 films John and Jane, Nalini by Day, Nancy by Night, and 1-800-India: Importing a White-Collar Economy, and the 2006 film Bombay Calling, among others. An Indian call centre is also the subject of the 2006 film Outsourced and a key location in the 2008 film, Slumdog Millionaire. The 2014 BBC fly on the wall documentary series The Call Centre gave an often distorted although humorous view of life in a Welsh call centre.",
"title": "Media portrayals"
},
{
"paragraph_id": 28,
"text": "Appointment setting is a specialized function within call centres, where dedicated agents focus on facilitating and scheduling meetings between clients and businesses or sales representatives. This service is particularly prevalent in various industries such as financial services, healthcare, real estate, and B2B sales, where time-sensitive and personalized communications are essential for effective client engagement.",
"title": "Appointment Setting"
},
{
"paragraph_id": 29,
"text": "Lead generation is a vital aspect of call center operations, encompassing strategies and activities aimed at identifying potential customers or clients for businesses or sales representatives. It involves gathering information and generating interest among individuals or organizations who may have a potential interest in the products or services offered.",
"title": "Lead Generation"
}
] | A call centre or call center is a managed capability that can be centralised or remote that is used for receiving or transmitting a large volume of enquiries by telephone. An inbound call centre is operated by a company to administer incoming product or service support or information enquiries from consumers. Outbound call centres are usually operated for sales purposes such as telemarketing, for solicitation of charitable or political donations, debt collection, market research, emergency notifications, and urgent/critical needs blood banks. A contact centre is a further extension to call centres telephony based capabilities, administers centralised handling of individual communications, including letters, faxes, live support software, social media, instant message, and email. A call center was previously seen to be an open workspace for call center agents, with workstations that include a computer and display for each agent and connected to an inbound/outbound call management system, and one or more supervisor stations. It can be independently operated or networked with additional centers, often linked to a corporate computer network, including mainframes, microcomputer/servers and LANs. The contact center is a central point from which all customer contacts are managed. Through contact centers, valuable information can be routed to the appropriate people or systems, contacts can be tracked and data may be gathered. It is generally a part of the company's customer relationship management infrastructure. The majority of large companies use contact centers as a means of managing their customer interactions. These centers can be operated by either an in-house department responsible or outsourcing customer interaction to a third-party agency. | 2001-11-26T16:58:29Z | 2023-11-24T11:40:27Z | [
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7,246 | Charles Messier | Charles Messier (French: [ʃaʁl me.sje]; 26 June 1730 – 12 April 1817) was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters, which came to be known as the Messier objects, referred to with the letter M and their number between 1 and 110. Messier's purpose for the catalogue was to help astronomical observers distinguish between permanent and transient visually diffuse objects in the sky.
Messier was born in Badonviller in the Lorraine region of France, in 1730, the tenth of twelve children of Françoise B. Grandblaise and Nicolas Messier, a Court usher. Six of his brothers and sisters died while young, and his father died in 1741. Charles' interest in astronomy was stimulated by the appearance of the great six-tailed comet in 1744 and by an annular solar eclipse visible from his hometown on 25 July 1748.
In 1751, Messier entered the employ of Joseph Nicolas Delisle, the astronomer of the French Navy, who instructed him to keep careful records of his observations. Messier's first documented observation was that of the Mercury transit of 6 May 1753, followed by his observations journals at Cluny Hotel and at the French Navy observatories.
In 1764, Messier was made a fellow of the Royal Society; in 1769, he was elected a foreign member of the Royal Swedish Academy of Sciences; and on 30 June 1770, he was elected to the French Academy of Sciences. He was given the nickname "Ferret of Comets" by King Louis XV.
Messier discovered 13 comets:
He also co-discovered Comet C/1801 N1 (Comet Pons-Messier-Méchain-Bouvard), a discovery shared with several other observers including Pons, Méchain, and Bouvard.
Near the end of his life, Messier self-published a booklet connecting the great comet of 1769 to the birth of Napoleon, who was in power at the time of publishing. According to Maik Meyer:
As hard as it may seem to accept, the memoir is an ingratiation to Napoleon in order to receive attention and monetary support. It is full of servility and opportunism. Messier did not even refrain from utilizing astrology to reach his goal. Messier comes quickly to the point on the first page of the memoir, by stating that the beginning of the epoch of Napoleon the Great ... coincides with the discovery of one of the greatest comets ever observed.
Messier is buried in Père Lachaise Cemetery in the 20th arrondissement of Paris.
Messier's occupation as a comet hunter led him to continually come across fixed diffuse objects in the night sky which could be mistaken for comets. He compiled a list of them, in collaboration with his friend and assistant Pierre Méchain (who may have found at least 20 of the objects), to avoid wasting time sorting them out from the comets they were looking for. The entries are now known to be 39 galaxies, 4 planetary nebulae, 7 other types of nebulae, and 55 star clusters.
Messier did his observing with a 100 mm (four-inch) refracting telescope from Hôtel de Cluny (now the Musée national du Moyen Âge), in downtown Paris, France. The list he compiled only contains objects found in the area of the sky Messier could observe, from the north celestial pole to a declination of about −35.7° . They are not organized scientifically by object type, or by location. The first version of Messier's catalogue contained 45 objects and was published in 1774 in the journal of the French Academy of Sciences in Paris. In addition to his own discoveries, this version included objects previously observed by other astronomers, with only 17 of the 45 objects being discovered by Messier himself. By 1780 the catalog had increased to 80 objects.
The final version of the catalogue was published in 1781, in the 1784 issue of Connaissance des Temps. The final list of Messier objects had grown to 103. On several occasions between 1921 and 1966, astronomers and historians discovered evidence of another seven objects that were observed either by Messier or by Méchain, shortly after the final version was published. These seven objects, M 104 through M 110, are accepted by astronomers as "official" Messier objects.
The objects' Messier designations, from M 1 to M 110, are still used by professional and amateur astronomers today and their relative brightness makes them popular objects in the amateur astronomical community.
The lunar crater Messier and the asteroid 7359 Messier were named in his honour. | [
{
"paragraph_id": 0,
"text": "Charles Messier (French: [ʃaʁl me.sje]; 26 June 1730 – 12 April 1817) was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters, which came to be known as the Messier objects, referred to with the letter M and their number between 1 and 110. Messier's purpose for the catalogue was to help astronomical observers distinguish between permanent and transient visually diffuse objects in the sky.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Messier was born in Badonviller in the Lorraine region of France, in 1730, the tenth of twelve children of Françoise B. Grandblaise and Nicolas Messier, a Court usher. Six of his brothers and sisters died while young, and his father died in 1741. Charles' interest in astronomy was stimulated by the appearance of the great six-tailed comet in 1744 and by an annular solar eclipse visible from his hometown on 25 July 1748.",
"title": "Biography"
},
{
"paragraph_id": 2,
"text": "In 1751, Messier entered the employ of Joseph Nicolas Delisle, the astronomer of the French Navy, who instructed him to keep careful records of his observations. Messier's first documented observation was that of the Mercury transit of 6 May 1753, followed by his observations journals at Cluny Hotel and at the French Navy observatories.",
"title": "Biography"
},
{
"paragraph_id": 3,
"text": "In 1764, Messier was made a fellow of the Royal Society; in 1769, he was elected a foreign member of the Royal Swedish Academy of Sciences; and on 30 June 1770, he was elected to the French Academy of Sciences. He was given the nickname \"Ferret of Comets\" by King Louis XV.",
"title": "Biography"
},
{
"paragraph_id": 4,
"text": "Messier discovered 13 comets:",
"title": "Biography"
},
{
"paragraph_id": 5,
"text": "He also co-discovered Comet C/1801 N1 (Comet Pons-Messier-Méchain-Bouvard), a discovery shared with several other observers including Pons, Méchain, and Bouvard.",
"title": "Biography"
},
{
"paragraph_id": 6,
"text": "Near the end of his life, Messier self-published a booklet connecting the great comet of 1769 to the birth of Napoleon, who was in power at the time of publishing. According to Maik Meyer:",
"title": "Biography"
},
{
"paragraph_id": 7,
"text": "As hard as it may seem to accept, the memoir is an ingratiation to Napoleon in order to receive attention and monetary support. It is full of servility and opportunism. Messier did not even refrain from utilizing astrology to reach his goal. Messier comes quickly to the point on the first page of the memoir, by stating that the beginning of the epoch of Napoleon the Great ... coincides with the discovery of one of the greatest comets ever observed.",
"title": "Biography"
},
{
"paragraph_id": 8,
"text": "Messier is buried in Père Lachaise Cemetery in the 20th arrondissement of Paris.",
"title": "Biography"
},
{
"paragraph_id": 9,
"text": "Messier's occupation as a comet hunter led him to continually come across fixed diffuse objects in the night sky which could be mistaken for comets. He compiled a list of them, in collaboration with his friend and assistant Pierre Méchain (who may have found at least 20 of the objects), to avoid wasting time sorting them out from the comets they were looking for. The entries are now known to be 39 galaxies, 4 planetary nebulae, 7 other types of nebulae, and 55 star clusters.",
"title": "Messier catalogue"
},
{
"paragraph_id": 10,
"text": "Messier did his observing with a 100 mm (four-inch) refracting telescope from Hôtel de Cluny (now the Musée national du Moyen Âge), in downtown Paris, France. The list he compiled only contains objects found in the area of the sky Messier could observe, from the north celestial pole to a declination of about −35.7° . They are not organized scientifically by object type, or by location. The first version of Messier's catalogue contained 45 objects and was published in 1774 in the journal of the French Academy of Sciences in Paris. In addition to his own discoveries, this version included objects previously observed by other astronomers, with only 17 of the 45 objects being discovered by Messier himself. By 1780 the catalog had increased to 80 objects.",
"title": "Messier catalogue"
},
{
"paragraph_id": 11,
"text": "The final version of the catalogue was published in 1781, in the 1784 issue of Connaissance des Temps. The final list of Messier objects had grown to 103. On several occasions between 1921 and 1966, astronomers and historians discovered evidence of another seven objects that were observed either by Messier or by Méchain, shortly after the final version was published. These seven objects, M 104 through M 110, are accepted by astronomers as \"official\" Messier objects.",
"title": "Messier catalogue"
},
{
"paragraph_id": 12,
"text": "The objects' Messier designations, from M 1 to M 110, are still used by professional and amateur astronomers today and their relative brightness makes them popular objects in the amateur astronomical community.",
"title": "Messier catalogue"
},
{
"paragraph_id": 13,
"text": "The lunar crater Messier and the asteroid 7359 Messier were named in his honour.",
"title": "Legacy"
}
] | Charles Messier was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters, which came to be known as the Messier objects, referred to with the letter M and their number between 1 and 110. Messier's purpose for the catalogue was to help astronomical observers distinguish between permanent and transient visually diffuse objects in the sky. | 2001-11-26T22:01:06Z | 2023-11-26T23:16:47Z | [
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7,247 | Cemetery H culture | The Cemetery H culture was a Bronze Age culture in the Punjab region in the northern part of the Indian subcontinent, from about 1900 BC until about 1300 BC. It is regarded as a regional form of the late phase of the Harappan (Indus Valley) civilisation (alongside the Jhukar culture of Sindh and Rangpur culture of Gujarat), but also as the manifestation of a first wave of Indo-Aryan migrations, predating the migrations of the proto-Rig Vedic people.
The Cemetery H culture was located in and around the Punjab region in present-day India and Pakistan. It was named after a cemetery found in "area H" at Harappa. Remains of the culture have been dated from about 1900 BC until about 1300 BC.
According to Rafique Mughal, the Cemetery H culture developed out of the northern part of the Indus Valley civilization around 1700 BC, being part of the Punjab Phase, one of three cultural phases that developed in the Localization Era or "Late Harappan phase" of the Indus Valley Tradition. According to Kenoyer, the Cemetery H culture "may only reflect a change in the focus of settlement organization from that which was the pattern of the earlier Harappan phase and not cultural discontinuity, urban decay, invading aliens, or site abandonment, all of which have been suggested in the past." According to Kennedy and Mallory & Adams, the Cemetery H culture also "shows clear biological affinities" with the earlier population of Harappa.
Some traits of the Cemetery H culture have been associated with the Swat culture, which has been regarded as evidence of the Indo-Aryan movement toward the Indian subcontinent. According to Parpola, the Cemetery H culture represents a first wave of Indo-Aryan migration from as early as 1900 BC, which was followed by a migration to the Punjab c. 1700-1400 BC. According to Kochhar, the Swat IV co-founded the Harappan Cemetery H phase in Punjab (2000-1800 BC), while the Rigvedic Indo-Aryans of Swat V later absorbed the Cemetery H people and gave rise to the Painted Grey Ware culture (to 1400 BC).
Together with the Gandhara grave culture and the Ochre Coloured Pottery culture, the Cemetery H culture is considered by some scholars as a factor in the formation of the Vedic civilization.
The distinguishing features of this culture include:
Some of the designs painted on the Cemetery H funerary urns have been interpreted through the lens of Vedic mythology: for instance, peacocks with hollow bodies and a small human form inside, which has been interpreted as the souls of the dead, and a hound that can be seen as the hound of Yama, the god of death. This may indicate the introduction of new religious beliefs during this period, but the archaeological evidence does not support the hypothesis that the Cemetery H people were the destroyers of the Harappan cities.
Cremation in India is first attested in the Cemetery H culture, a practice previously described in the Vedas. The Rigveda contains a reference to the emerging practice, in RV 10.15.14, where the forefathers "both cremated (agnidagdhá-) and uncremated (ánagnidagdha-)" are invoked. | [
{
"paragraph_id": 0,
"text": "The Cemetery H culture was a Bronze Age culture in the Punjab region in the northern part of the Indian subcontinent, from about 1900 BC until about 1300 BC. It is regarded as a regional form of the late phase of the Harappan (Indus Valley) civilisation (alongside the Jhukar culture of Sindh and Rangpur culture of Gujarat), but also as the manifestation of a first wave of Indo-Aryan migrations, predating the migrations of the proto-Rig Vedic people.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The Cemetery H culture was located in and around the Punjab region in present-day India and Pakistan. It was named after a cemetery found in \"area H\" at Harappa. Remains of the culture have been dated from about 1900 BC until about 1300 BC.",
"title": "Origins"
},
{
"paragraph_id": 2,
"text": "According to Rafique Mughal, the Cemetery H culture developed out of the northern part of the Indus Valley civilization around 1700 BC, being part of the Punjab Phase, one of three cultural phases that developed in the Localization Era or \"Late Harappan phase\" of the Indus Valley Tradition. According to Kenoyer, the Cemetery H culture \"may only reflect a change in the focus of settlement organization from that which was the pattern of the earlier Harappan phase and not cultural discontinuity, urban decay, invading aliens, or site abandonment, all of which have been suggested in the past.\" According to Kennedy and Mallory & Adams, the Cemetery H culture also \"shows clear biological affinities\" with the earlier population of Harappa.",
"title": "Origins"
},
{
"paragraph_id": 3,
"text": "Some traits of the Cemetery H culture have been associated with the Swat culture, which has been regarded as evidence of the Indo-Aryan movement toward the Indian subcontinent. According to Parpola, the Cemetery H culture represents a first wave of Indo-Aryan migration from as early as 1900 BC, which was followed by a migration to the Punjab c. 1700-1400 BC. According to Kochhar, the Swat IV co-founded the Harappan Cemetery H phase in Punjab (2000-1800 BC), while the Rigvedic Indo-Aryans of Swat V later absorbed the Cemetery H people and gave rise to the Painted Grey Ware culture (to 1400 BC).",
"title": "Origins"
},
{
"paragraph_id": 4,
"text": "Together with the Gandhara grave culture and the Ochre Coloured Pottery culture, the Cemetery H culture is considered by some scholars as a factor in the formation of the Vedic civilization.",
"title": "Origins"
},
{
"paragraph_id": 5,
"text": "The distinguishing features of this culture include:",
"title": "Features"
},
{
"paragraph_id": 6,
"text": "Some of the designs painted on the Cemetery H funerary urns have been interpreted through the lens of Vedic mythology: for instance, peacocks with hollow bodies and a small human form inside, which has been interpreted as the souls of the dead, and a hound that can be seen as the hound of Yama, the god of death. This may indicate the introduction of new religious beliefs during this period, but the archaeological evidence does not support the hypothesis that the Cemetery H people were the destroyers of the Harappan cities.",
"title": "Features"
},
{
"paragraph_id": 7,
"text": "Cremation in India is first attested in the Cemetery H culture, a practice previously described in the Vedas. The Rigveda contains a reference to the emerging practice, in RV 10.15.14, where the forefathers \"both cremated (agnidagdhá-) and uncremated (ánagnidagdha-)\" are invoked.",
"title": "Archaeology"
}
] | The Cemetery H culture was a Bronze Age culture in the Punjab region in the northern part of the Indian subcontinent, from about 1900 BC until about 1300 BC. It is regarded as a regional form of the late phase of the Harappan civilisation, but also as the manifestation of a first wave of Indo-Aryan migrations, predating the migrations of the proto-Rig Vedic people. | 2001-11-26T22:06:10Z | 2023-09-17T20:49:40Z | [
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7,248 | Corrado Gini | Corrado Gini (23 May 1884 – 13 March 1965) was an Italian statistician, demographer and sociologist who developed the Gini coefficient, a measure of the income inequality in a society. Gini was a proponent of organicism and applied it to nations. Gini was a eugenicist, and prior to and during World War II, he was an advocate of Italian Fascism. Following the war, he founded the Italian Unionist Movement, which advocated for the annexation of Italy by the United States.
Gini was born on May 23, 1884, in Motta di Livenza, near Treviso, into an old landed family. He entered the Faculty of Law at the University of Bologna, where in addition to law he studied mathematics, economics, and biology.
Gini's scientific work ran in two directions: towards the social sciences and towards statistics. His interests ranged well beyond the formal aspects of statistics—to the laws that govern biological and social phenomena.
His first published work was Il sesso dal punto di vista statistico (1908). This work is a thorough review of the natal sex ratio, looking at past theories and at how new hypothesis fit the statistical data. In particular, it presents evidence that the tendency to produce one or the other sex of child is, to some extent, heritable.
He published the Gini coefficient in the 1912 paper Variability and Mutability (Italian: Variabilità e mutabilità). Also called the Gini index and the Gini ratio, it is a measure of statistical dispersion intended to represent the income inequality within a nation or other group.
In 1910, he acceded to the Chair of Statistics in the University of Cagliari and then at Padua in 1913.
He founded the statistical journal Metron in 1920, directing it until his death; it only accepted articles with practical applications.
He became a professor at the Sapienza University of Rome in 1925. At the University, he founded a lecture course on sociology, maintaining it until his retirement. He also set up the School of Statistics in 1928, and, in 1936, the Faculty of Statistical, Demographic and Actuarial Sciences.
In 1926, he was appointed President of the Central Institute of Statistics in Rome. This he organised as a single centre for Italian statistical services. He was a close intimate of Mussolini throughout the 20s. He resigned from his position within the institute in 1932.
In 1927 he published a treatise entitled The Scientific Basis of Fascism.
In 1929, Gini founded the Italian Committee for the Study of Population Problems (Comitato italiano per lo studio dei problemi della popolazione) which, two years later, organised the first Population Congress in Rome.
A eugenicist apart from being a demographer, Gini led an expedition to survey Polish populations, among them the Karaites. Gini was throughout the 20s a supporter of fascism, and expressed his hope that Nazi Germany and Fascist Italy would emerge as victors in WW2. However, he never supported any measure of exclusion of the Jews. Milestones during the rest of his career include:
On October 12, 1944, Gini joined with the Calabrian activist Santi Paladino, and fellow-statistician Ugo Damiani to found the Italian Unionist Movement, for which the emblem was the Stars and Stripes, the Italian flag and a world map. According to the three men, the government of the United States should annex all free and democratic nations worldwide, thereby transforming itself into a world government, and allowing Washington, D.C. to maintain Earth in a perpetual condition of peace. The party existed up to 1948 but had little success and its aims were not supported by the United States.
Gini was a proponent of organicism and saw nations as organic in nature. Gini shared the view held by Oswald Spengler that populations go through a cycle of birth, growth, and decay. Gini claimed that nations at a primitive level have a high birth rate, but, as they evolve, the upper classes birth rate drops while the lower class birth rate, while higher, will inevitably deplete as their stronger members emigrate, die in war, or enter into the upper classes. If a nation continues on this path without resistance, Gini claimed the nation would enter a final decadent stage where the nation would degenerate as noted by decreasing birth rate, decreasing cultural output, and the lack of imperial conquest. At this point, the decadent nation with its aging population can be overrun by a more youthful and vigorous nation. Gini's organicist theories of nations and natality are believed to have influenced policies of Italian Fascism.
The following honorary degrees were conferred upon him: | [
{
"paragraph_id": 0,
"text": "Corrado Gini (23 May 1884 – 13 March 1965) was an Italian statistician, demographer and sociologist who developed the Gini coefficient, a measure of the income inequality in a society. Gini was a proponent of organicism and applied it to nations. Gini was a eugenicist, and prior to and during World War II, he was an advocate of Italian Fascism. Following the war, he founded the Italian Unionist Movement, which advocated for the annexation of Italy by the United States.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Gini was born on May 23, 1884, in Motta di Livenza, near Treviso, into an old landed family. He entered the Faculty of Law at the University of Bologna, where in addition to law he studied mathematics, economics, and biology.",
"title": "Career"
},
{
"paragraph_id": 2,
"text": "Gini's scientific work ran in two directions: towards the social sciences and towards statistics. His interests ranged well beyond the formal aspects of statistics—to the laws that govern biological and social phenomena.",
"title": "Career"
},
{
"paragraph_id": 3,
"text": "His first published work was Il sesso dal punto di vista statistico (1908). This work is a thorough review of the natal sex ratio, looking at past theories and at how new hypothesis fit the statistical data. In particular, it presents evidence that the tendency to produce one or the other sex of child is, to some extent, heritable.",
"title": "Career"
},
{
"paragraph_id": 4,
"text": "He published the Gini coefficient in the 1912 paper Variability and Mutability (Italian: Variabilità e mutabilità). Also called the Gini index and the Gini ratio, it is a measure of statistical dispersion intended to represent the income inequality within a nation or other group.",
"title": "Career"
},
{
"paragraph_id": 5,
"text": "In 1910, he acceded to the Chair of Statistics in the University of Cagliari and then at Padua in 1913.",
"title": "Career"
},
{
"paragraph_id": 6,
"text": "He founded the statistical journal Metron in 1920, directing it until his death; it only accepted articles with practical applications.",
"title": "Career"
},
{
"paragraph_id": 7,
"text": "He became a professor at the Sapienza University of Rome in 1925. At the University, he founded a lecture course on sociology, maintaining it until his retirement. He also set up the School of Statistics in 1928, and, in 1936, the Faculty of Statistical, Demographic and Actuarial Sciences.",
"title": "Career"
},
{
"paragraph_id": 8,
"text": "In 1926, he was appointed President of the Central Institute of Statistics in Rome. This he organised as a single centre for Italian statistical services. He was a close intimate of Mussolini throughout the 20s. He resigned from his position within the institute in 1932.",
"title": "Under fascism"
},
{
"paragraph_id": 9,
"text": "In 1927 he published a treatise entitled The Scientific Basis of Fascism.",
"title": "Under fascism"
},
{
"paragraph_id": 10,
"text": "In 1929, Gini founded the Italian Committee for the Study of Population Problems (Comitato italiano per lo studio dei problemi della popolazione) which, two years later, organised the first Population Congress in Rome.",
"title": "Under fascism"
},
{
"paragraph_id": 11,
"text": "A eugenicist apart from being a demographer, Gini led an expedition to survey Polish populations, among them the Karaites. Gini was throughout the 20s a supporter of fascism, and expressed his hope that Nazi Germany and Fascist Italy would emerge as victors in WW2. However, he never supported any measure of exclusion of the Jews. Milestones during the rest of his career include:",
"title": "Under fascism"
},
{
"paragraph_id": 12,
"text": "On October 12, 1944, Gini joined with the Calabrian activist Santi Paladino, and fellow-statistician Ugo Damiani to found the Italian Unionist Movement, for which the emblem was the Stars and Stripes, the Italian flag and a world map. According to the three men, the government of the United States should annex all free and democratic nations worldwide, thereby transforming itself into a world government, and allowing Washington, D.C. to maintain Earth in a perpetual condition of peace. The party existed up to 1948 but had little success and its aims were not supported by the United States.",
"title": "Italian Unionist Movement"
},
{
"paragraph_id": 13,
"text": "Gini was a proponent of organicism and saw nations as organic in nature. Gini shared the view held by Oswald Spengler that populations go through a cycle of birth, growth, and decay. Gini claimed that nations at a primitive level have a high birth rate, but, as they evolve, the upper classes birth rate drops while the lower class birth rate, while higher, will inevitably deplete as their stronger members emigrate, die in war, or enter into the upper classes. If a nation continues on this path without resistance, Gini claimed the nation would enter a final decadent stage where the nation would degenerate as noted by decreasing birth rate, decreasing cultural output, and the lack of imperial conquest. At this point, the decadent nation with its aging population can be overrun by a more youthful and vigorous nation. Gini's organicist theories of nations and natality are believed to have influenced policies of Italian Fascism.",
"title": "Organicism and nations"
},
{
"paragraph_id": 14,
"text": "The following honorary degrees were conferred upon him:",
"title": "Honours"
}
] | Corrado Gini was an Italian statistician, demographer and sociologist who developed the Gini coefficient, a measure of the income inequality in a society. Gini was a proponent of organicism and applied it to nations. Gini was a eugenicist, and prior to and during World War II, he was an advocate of Italian Fascism. Following the war, he founded the Italian Unionist Movement, which advocated for the annexation of Italy by the United States. | 2002-02-25T15:51:15Z | 2023-11-19T23:40:18Z | [
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] | https://en.wikipedia.org/wiki/Corrado_Gini |
7,249 | Crankshaft | A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods.
The crankpins are also called rod bearing journals, and they rotate within the "big end" of the connecting rods.
Most modern crankshafts are located in the engine block. They are made from steel or cast iron, using either a forging, casting or machining process.
The crankshaft located within the engine block, held in place via main bearings which allow the crankshaft to rotate within the block. The up-down motion of each piston is transferred to the crankshaft via connecting rods. A flywheel is often attached to one end of the crankshaft, in order to smoothen the power delivery and reduce vibration.
A crankshaft is subjected to enormous stresses, in some cases more than 8.6 tonnes (19,000 pounds) per cylinder. Crankshafts for single-cylinder engines are usually a simpler design than for engines with multiple cylinders.
The crankshaft is able to rotate in the engine block due to the 'main bearings'. Since the crankshaft is subject to large horizontal and torsional forces from each cylinder, these main bearings are located at various points along the crankshaft, rather than just one at each end. The number of main bearings is determined based on the overall load factor and the maximum engine speed. Crankshafts in diesel engines often use a main bearing between every cylinder and at both ends of the crankshaft, due to the high forces of combustion present.
Flexing of the crankshaft was a factor in V8 engines replacing straight-eight engines in the 1950s; the long crankshafts of the latter suffered from an unacceptable amount of flex when engine designers began using higher compression ratios and higher engine speeds (RPM).
The distance between the axis of the crankpins and the axis of the crankshaft determines the stroke length of the engine.
Most modern car engines are classified as "over square" or short-stroke, wherein the stroke is less than the diameter of the cylinder bore. A common way to increase the low-RPM torque of an engine is to increase the stroke, sometimes known as "stroking" the engine. Historically, the trade-off for a long-stroke engine was a lower rev limit and increased vibration at high RPM, due to the increased piston velocity.
When designing an engine, the crankshaft configuration is closely related to the engine's firing order.
Most production V8 engines (such as the Ford Modular engine and the General Motors LS engine) use a cross-plane crank whereby the crank throws are spaced 90° apart. However, some high-performance V8 engines (such as the Ferrari 488) instead use a flat-plane crank, whereby the throws are spaced 180° apart, which essentially results in two inline-four engines sharing a common crankcase. Flat-plane engines are usually able to operate at higher RPM, however they have higher second-order vibrations, so they are better suited to racing car engines.
For some engines it is necessary to provide counterweights for the reciprocating mass of the piston, conrods and crankshaft, in order to improve the engine balance. These counterweights are typically cast as part of the crankshaft but, occasionally, are bolt-on pieces.
In some engines, the crankshaft contains direct links between adjacent crank pins, without the usual intermediate main bearing. These links are called flying arms. This arrangement is sometimes used in V6 and V8 engines, in order to maintain an even firing interval while using different V angles, and to reduce the number of main bearings required. The downside of flying arms is that the rigidity of the crankshaft is reduced, which can cause problems at high RPM or high power outputs.
In most engines, each connecting rod is attached a single crankshaft, which results in the angle of the connecting rod varying as the piston moves through its stroke. This variation in angle pushes the pistons against the cylinder wall, which causes friction between the piston and cylinder wall. To prevent this, some early engines - such as the 1900-1904 Lanchester Engine Company flat-twin engines - connected each piston to two crankshafts that are rotating in opposite directions. This arrangement cancels out the lateral forces and reduces the requirement for counterweights. This design is rarely used, however a similar principle applies to balance shafts, which are occasionally used.
Crankshafts can be created from a steel bar using roll forging. Today, manufacturers tend to favour the use of forged crankshafts due to their lighter weight, more compact dimensions and better inherent damping. With forged crankshafts, vanadium micro-alloyed steels are mainly used as these steels can be air-cooled after reaching high strengths without additional heat treatment, except for the surface hardening of the bearing surfaces. The low alloy content also makes the material cheaper than high alloy steels. Carbon steels also require additional heat treatment to reach the desired properties.
Another construction method is to cast the crankshaft from ductile. Cast iron crankshafts are today mostly found in cheaper production engines where the loads are lower.
Crankshafts can also be machined from billet, often a bar of high quality vacuum remelted steel. Though the fiber flow (local inhomogeneities of the material's chemical composition generated during casting) does not follow the shape of the crankshaft (which is undesirable), this is usually not a problem since higher quality steels, which normally are difficult to forge, can be used. Per unit, these crankshafts tend to be very expensive due to the large amount of material that must be removed with lathes and milling machines, the high material cost, and the additional heat treatment required. However, since no expensive tooling is needed, this production method allows small production runs without high up-front costs.
The earliest hand-operated cranks appeared in China during the Han Dynasty (202 BC-220 AD). They were used for silk-reeling, hemp-spinning, for the agricultural winnowing fan, in the water-powered flour-sifter, for hydraulic-powered metallurgic bellows, and in the well windlass. The rotary winnowing fan greatly increased the efficiency of separating grain from husks and stalks. However, the potential of the crank of converting circular motion into reciprocal motion never seems to have been fully realized in China, and the crank was typically absent from such machines until the turn of the 20th century.
A crank in the form of an eccentrically-mounted handle of the rotary handmill appeared in 5th century BC Celtiberian Spain and ultimately spread across the Roman Empire. A Roman iron crank dating to the 2nd century AD was excavated in Augusta Raurica, Switzerland. The crank-operated Roman mill is dated to the late 2nd century.
Evidence for the crank combined with a connecting rod appears in the Hierapolis mill, dating to the 3rd century; they are also found in stone sawmills in Roman Syria and Ephesus dating to the 6th century. The pediment of the Hierapolis mill shows a waterwheel fed by a mill race powering via a gear train two frame saws which cut blocks by the way of some kind of connecting rods and cranks. The crank and connecting rod mechanisms of the other two archaeologically-attested sawmills worked without a gear train. Water-powered marble saws in Germany were mentioned by the late 4th century poet Ausonius; about the same time, these mill types seem also to be indicated by Gregory of Nyssa from Anatolia.
A rotary grindstone operated by a crank handle is shown in the Carolingian manuscript Utrecht Psalter; the pen drawing of around 830 goes back to a late antique original. Cranks used to turn wheels are also depicted or described in various works dating from the tenth to thirteenth centuries.
The first depictions of the compound crank in the carpenter's brace appear between 1420 and 1430 in northern European artwork. The rapid adoption of the compound crank can be traced in the works of an unknown German engineer writing on the state of military technology during the Hussite Wars: first, the connecting-rod, applied to cranks, reappeared; second, double-compound cranks also began to be equipped with connecting-rods; and third, the flywheel was employed for these cranks to get them over the 'dead-spot'. The concept was much improved by the Italian engineer and writer Roberto Valturio in 1463, who devised a boat with five sets, where the parallel cranks are all joined to a single power source by one connecting-rod, an idea also taken up by his compatriot Italian painter Francesco di Giorgio.
The crank had become common in Europe by the early 15th century, as seen in the works of the military engineer Konrad Kyeser (1366–after 1405). Devices depicted in Kyeser's Bellifortis include cranked windlasses for spanning siege crossbows, cranked chain of buckets for water-lifting and cranks fitted to a wheel of bells. Kyeser also equipped the Archimedes' screws for water-raising with a crank handle, an innovation which subsequently replaced the ancient practice of working the pipe by treading.
Pisanello painted a piston-pump driven by a water-wheel and operated by two simple cranks and two connecting-rods.
The 15th also century saw the introduction of cranked rack-and-pinion devices, called cranequins, which were fitted to the crossbow's stock as a means of exerting even more force while spanning the missile weapon. In the textile industry, cranked reels for winding skeins of yarn were introduced.
The Italian physician Guido da Vigevano (c. 1280 – c. 1349−1349), planning for a new crusade, made illustrations for a paddle boat and war carriages that were propelled by manually turned compound cranks and gear wheels, identified as an early crankshaft prototype by Lynn Townsend White. The Luttrell Psalter, dating to around 1340, describes a grindstone which was rotated by two cranks, one at each end of its axle; the geared hand-mill, operated either with one or two cranks, appeared later in the 15th century.
Around 1480, the early medieval rotary grindstone was improved with a treadle and crank mechanism. Cranks mounted on push-carts first appear in a German engraving of 1589. Crankshafts were also described by Leonardo da Vinci (1452–1519) and a Dutch farmer and windmill owner by the name Cornelis Corneliszoon van Uitgeest in 1592. His wind-powered sawmill used a crankshaft to convert a windmill's circular motion into a back-and-forward motion powering the saw. Corneliszoon was granted a patent for his crankshaft in 1597.
From the 16th century onwards, evidence of cranks and connecting rods integrated into machine design becomes abundant in the technological treatises of the period: Agostino Ramelli's The Diverse and Artifactitious Machines of 1588 depicts eighteen examples, a number that rises in the Theatrum Machinarum Novum by Georg Andreas Böckler to 45 different machines. Cranks were formerly common on some machines in the early 20th century; for example almost all phonographs before the 1930s were powered by clockwork motors wound with cranks. Reciprocating piston engines use cranks to convert the linear piston motion into rotational motion. Internal combustion engines of early 20th century automobiles were usually started with hand cranks, before electric starters came into general use.
The non-manual crank appears in several of the hydraulic devices described by the Banū Mūsā brothers in their 9th-century Book of Ingenious Devices. These automatically operated cranks appear in several devices, two of which contain an action which approximates to that of a crankshaft. The automatic crank described by the Banū Mūsā would not have allowed a full rotation, however, but only a small modification was required to convert it to a crankshaft. | [
{
"paragraph_id": 0,
"text": "A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The crankpins are also called rod bearing journals, and they rotate within the \"big end\" of the connecting rods.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Most modern crankshafts are located in the engine block. They are made from steel or cast iron, using either a forging, casting or machining process.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The crankshaft located within the engine block, held in place via main bearings which allow the crankshaft to rotate within the block. The up-down motion of each piston is transferred to the crankshaft via connecting rods. A flywheel is often attached to one end of the crankshaft, in order to smoothen the power delivery and reduce vibration.",
"title": "Design"
},
{
"paragraph_id": 4,
"text": "A crankshaft is subjected to enormous stresses, in some cases more than 8.6 tonnes (19,000 pounds) per cylinder. Crankshafts for single-cylinder engines are usually a simpler design than for engines with multiple cylinders.",
"title": "Design"
},
{
"paragraph_id": 5,
"text": "The crankshaft is able to rotate in the engine block due to the 'main bearings'. Since the crankshaft is subject to large horizontal and torsional forces from each cylinder, these main bearings are located at various points along the crankshaft, rather than just one at each end. The number of main bearings is determined based on the overall load factor and the maximum engine speed. Crankshafts in diesel engines often use a main bearing between every cylinder and at both ends of the crankshaft, due to the high forces of combustion present.",
"title": "Design"
},
{
"paragraph_id": 6,
"text": "Flexing of the crankshaft was a factor in V8 engines replacing straight-eight engines in the 1950s; the long crankshafts of the latter suffered from an unacceptable amount of flex when engine designers began using higher compression ratios and higher engine speeds (RPM).",
"title": "Design"
},
{
"paragraph_id": 7,
"text": "The distance between the axis of the crankpins and the axis of the crankshaft determines the stroke length of the engine.",
"title": "Design"
},
{
"paragraph_id": 8,
"text": "Most modern car engines are classified as \"over square\" or short-stroke, wherein the stroke is less than the diameter of the cylinder bore. A common way to increase the low-RPM torque of an engine is to increase the stroke, sometimes known as \"stroking\" the engine. Historically, the trade-off for a long-stroke engine was a lower rev limit and increased vibration at high RPM, due to the increased piston velocity.",
"title": "Design"
},
{
"paragraph_id": 9,
"text": "When designing an engine, the crankshaft configuration is closely related to the engine's firing order.",
"title": "Design"
},
{
"paragraph_id": 10,
"text": "Most production V8 engines (such as the Ford Modular engine and the General Motors LS engine) use a cross-plane crank whereby the crank throws are spaced 90° apart. However, some high-performance V8 engines (such as the Ferrari 488) instead use a flat-plane crank, whereby the throws are spaced 180° apart, which essentially results in two inline-four engines sharing a common crankcase. Flat-plane engines are usually able to operate at higher RPM, however they have higher second-order vibrations, so they are better suited to racing car engines.",
"title": "Design"
},
{
"paragraph_id": 11,
"text": "For some engines it is necessary to provide counterweights for the reciprocating mass of the piston, conrods and crankshaft, in order to improve the engine balance. These counterweights are typically cast as part of the crankshaft but, occasionally, are bolt-on pieces.",
"title": "Design"
},
{
"paragraph_id": 12,
"text": "In some engines, the crankshaft contains direct links between adjacent crank pins, without the usual intermediate main bearing. These links are called flying arms. This arrangement is sometimes used in V6 and V8 engines, in order to maintain an even firing interval while using different V angles, and to reduce the number of main bearings required. The downside of flying arms is that the rigidity of the crankshaft is reduced, which can cause problems at high RPM or high power outputs.",
"title": "Design"
},
{
"paragraph_id": 13,
"text": "In most engines, each connecting rod is attached a single crankshaft, which results in the angle of the connecting rod varying as the piston moves through its stroke. This variation in angle pushes the pistons against the cylinder wall, which causes friction between the piston and cylinder wall. To prevent this, some early engines - such as the 1900-1904 Lanchester Engine Company flat-twin engines - connected each piston to two crankshafts that are rotating in opposite directions. This arrangement cancels out the lateral forces and reduces the requirement for counterweights. This design is rarely used, however a similar principle applies to balance shafts, which are occasionally used.",
"title": "Design"
},
{
"paragraph_id": 14,
"text": "Crankshafts can be created from a steel bar using roll forging. Today, manufacturers tend to favour the use of forged crankshafts due to their lighter weight, more compact dimensions and better inherent damping. With forged crankshafts, vanadium micro-alloyed steels are mainly used as these steels can be air-cooled after reaching high strengths without additional heat treatment, except for the surface hardening of the bearing surfaces. The low alloy content also makes the material cheaper than high alloy steels. Carbon steels also require additional heat treatment to reach the desired properties.",
"title": "Construction"
},
{
"paragraph_id": 15,
"text": "Another construction method is to cast the crankshaft from ductile. Cast iron crankshafts are today mostly found in cheaper production engines where the loads are lower.",
"title": "Construction"
},
{
"paragraph_id": 16,
"text": "Crankshafts can also be machined from billet, often a bar of high quality vacuum remelted steel. Though the fiber flow (local inhomogeneities of the material's chemical composition generated during casting) does not follow the shape of the crankshaft (which is undesirable), this is usually not a problem since higher quality steels, which normally are difficult to forge, can be used. Per unit, these crankshafts tend to be very expensive due to the large amount of material that must be removed with lathes and milling machines, the high material cost, and the additional heat treatment required. However, since no expensive tooling is needed, this production method allows small production runs without high up-front costs.",
"title": "Construction"
},
{
"paragraph_id": 17,
"text": "The earliest hand-operated cranks appeared in China during the Han Dynasty (202 BC-220 AD). They were used for silk-reeling, hemp-spinning, for the agricultural winnowing fan, in the water-powered flour-sifter, for hydraulic-powered metallurgic bellows, and in the well windlass. The rotary winnowing fan greatly increased the efficiency of separating grain from husks and stalks. However, the potential of the crank of converting circular motion into reciprocal motion never seems to have been fully realized in China, and the crank was typically absent from such machines until the turn of the 20th century.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "A crank in the form of an eccentrically-mounted handle of the rotary handmill appeared in 5th century BC Celtiberian Spain and ultimately spread across the Roman Empire. A Roman iron crank dating to the 2nd century AD was excavated in Augusta Raurica, Switzerland. The crank-operated Roman mill is dated to the late 2nd century.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "Evidence for the crank combined with a connecting rod appears in the Hierapolis mill, dating to the 3rd century; they are also found in stone sawmills in Roman Syria and Ephesus dating to the 6th century. The pediment of the Hierapolis mill shows a waterwheel fed by a mill race powering via a gear train two frame saws which cut blocks by the way of some kind of connecting rods and cranks. The crank and connecting rod mechanisms of the other two archaeologically-attested sawmills worked without a gear train. Water-powered marble saws in Germany were mentioned by the late 4th century poet Ausonius; about the same time, these mill types seem also to be indicated by Gregory of Nyssa from Anatolia.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "A rotary grindstone operated by a crank handle is shown in the Carolingian manuscript Utrecht Psalter; the pen drawing of around 830 goes back to a late antique original. Cranks used to turn wheels are also depicted or described in various works dating from the tenth to thirteenth centuries.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "The first depictions of the compound crank in the carpenter's brace appear between 1420 and 1430 in northern European artwork. The rapid adoption of the compound crank can be traced in the works of an unknown German engineer writing on the state of military technology during the Hussite Wars: first, the connecting-rod, applied to cranks, reappeared; second, double-compound cranks also began to be equipped with connecting-rods; and third, the flywheel was employed for these cranks to get them over the 'dead-spot'. The concept was much improved by the Italian engineer and writer Roberto Valturio in 1463, who devised a boat with five sets, where the parallel cranks are all joined to a single power source by one connecting-rod, an idea also taken up by his compatriot Italian painter Francesco di Giorgio.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "The crank had become common in Europe by the early 15th century, as seen in the works of the military engineer Konrad Kyeser (1366–after 1405). Devices depicted in Kyeser's Bellifortis include cranked windlasses for spanning siege crossbows, cranked chain of buckets for water-lifting and cranks fitted to a wheel of bells. Kyeser also equipped the Archimedes' screws for water-raising with a crank handle, an innovation which subsequently replaced the ancient practice of working the pipe by treading.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "Pisanello painted a piston-pump driven by a water-wheel and operated by two simple cranks and two connecting-rods.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "The 15th also century saw the introduction of cranked rack-and-pinion devices, called cranequins, which were fitted to the crossbow's stock as a means of exerting even more force while spanning the missile weapon. In the textile industry, cranked reels for winding skeins of yarn were introduced.",
"title": "History"
},
{
"paragraph_id": 25,
"text": "The Italian physician Guido da Vigevano (c. 1280 – c. 1349−1349), planning for a new crusade, made illustrations for a paddle boat and war carriages that were propelled by manually turned compound cranks and gear wheels, identified as an early crankshaft prototype by Lynn Townsend White. The Luttrell Psalter, dating to around 1340, describes a grindstone which was rotated by two cranks, one at each end of its axle; the geared hand-mill, operated either with one or two cranks, appeared later in the 15th century.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "Around 1480, the early medieval rotary grindstone was improved with a treadle and crank mechanism. Cranks mounted on push-carts first appear in a German engraving of 1589. Crankshafts were also described by Leonardo da Vinci (1452–1519) and a Dutch farmer and windmill owner by the name Cornelis Corneliszoon van Uitgeest in 1592. His wind-powered sawmill used a crankshaft to convert a windmill's circular motion into a back-and-forward motion powering the saw. Corneliszoon was granted a patent for his crankshaft in 1597.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "From the 16th century onwards, evidence of cranks and connecting rods integrated into machine design becomes abundant in the technological treatises of the period: Agostino Ramelli's The Diverse and Artifactitious Machines of 1588 depicts eighteen examples, a number that rises in the Theatrum Machinarum Novum by Georg Andreas Böckler to 45 different machines. Cranks were formerly common on some machines in the early 20th century; for example almost all phonographs before the 1930s were powered by clockwork motors wound with cranks. Reciprocating piston engines use cranks to convert the linear piston motion into rotational motion. Internal combustion engines of early 20th century automobiles were usually started with hand cranks, before electric starters came into general use.",
"title": "History"
},
{
"paragraph_id": 28,
"text": "The non-manual crank appears in several of the hydraulic devices described by the Banū Mūsā brothers in their 9th-century Book of Ingenious Devices. These automatically operated cranks appear in several devices, two of which contain an action which approximates to that of a crankshaft. The automatic crank described by the Banū Mūsā would not have allowed a full rotation, however, but only a small modification was required to convert it to a crankshaft.",
"title": "History"
}
] | A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods. The crankpins are also called rod bearing journals, and they rotate within the "big end" of the connecting rods. Most modern crankshafts are located in the engine block. They are made from steel or cast iron, using either a forging, casting or machining process. | 2001-11-27T12:07:07Z | 2023-12-16T05:59:07Z | [
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7,250 | CNS | CNS may refer to:
vnjx | [
{
"paragraph_id": 0,
"text": "CNS may refer to:",
"title": ""
},
{
"paragraph_id": 1,
"text": "vnjx",
"title": ""
}
] | CNS may refer to: vnjx | 2001-11-27T16:31:47Z | 2023-12-09T13:30:26Z | [
"Template:TOC right",
"Template:Lang",
"Template:Srt",
"Template:Disambiguation"
] | https://en.wikipedia.org/wiki/CNS |
7,251 | Central nervous system | The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain plus the spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts. It is a structure composed of nervous tissue positioned along the rostral (nose end) to caudal (tail end) axis of the body and may have an enlarged section at the rostral end which is a brain. Only arthropods, cephalopods and vertebrates have a true brain, though precursor structures exist in onychophorans, gastropods and lancelets.
The rest of this article exclusively discusses the vertebrate central nervous system, which is radically distinct from all other animals.
In vertebrates, the brain and spinal cord are both enclosed in the meninges. The meninges provide a barrier to chemicals dissolved in the blood, protecting the brain from most neurotoxins commonly found in food. Within the meninges the brain and spinal cord are bathed in cerebral spinal fluid which replaces the body fluid found outside the cells of all bilateral animals.
In vertebrates, the CNS is contained within the dorsal body cavity, while the brain is housed in the cranial cavity within the skull. The spinal cord is housed in the spinal canal within the vertebrae. Within the CNS, the interneuronal space is filled with a large amount of supporting non-nervous cells called neuroglia or glia from the Greek for "glue".
In vertebrates, the CNS also includes the retina and the optic nerve (cranial nerve II), as well as the olfactory nerves and olfactory epithelium. As parts of the CNS, they connect directly to brain neurons without intermediate ganglia. The olfactory epithelium is the only central nervous tissue outside the meninges in direct contact with the environment, which opens up a pathway for therapeutic agents which cannot otherwise cross the meninges barrier.
The CNS consists of two major structures: the brain and spinal cord. The brain is encased in the skull, and protected by the cranium. The spinal cord is continuous with the brain and lies caudally to the brain. It is protected by the vertebrae. The spinal cord reaches from the base of the skull, and continues through or starting below the foramen magnum, and terminates roughly level with the first or second lumbar vertebra, occupying the upper sections of the vertebral canal.
Microscopically, there are differences between the neurons and tissue of the CNS and the peripheral nervous system (PNS). The CNS is composed of white and gray matter. This can also be seen macroscopically on brain tissue. The white matter consists of axons and oligodendrocytes, while the gray matter consists of neurons and unmyelinated fibers. Both tissues include a number of glial cells (although the white matter contains more), which are often referred to as supporting cells of the CNS. Different forms of glial cells have different functions, some acting almost as scaffolding for neuroblasts to climb during neurogenesis such as bergmann glia, while others such as microglia are a specialized form of macrophage, involved in the immune system of the brain as well as the clearance of various metabolites from the brain tissue. Astrocytes may be involved with both clearance of metabolites as well as transport of fuel and various beneficial substances to neurons from the capillaries of the brain. Upon CNS injury astrocytes will proliferate, causing gliosis, a form of neuronal scar tissue, lacking in functional neurons.
The brain (cerebrum as well as midbrain and hindbrain) consists of a cortex, composed of neuron-bodies constituting gray matter, while internally there is more white matter that form tracts and commissures. Apart from cortical gray matter there is also subcortical gray matter making up a large number of different nuclei.
From and to the spinal cord are projections of the peripheral nervous system in the form of spinal nerves (sometimes segmental nerves). The nerves connect the spinal cord to skin, joints, muscles etc. and allow for the transmission of efferent motor as well as afferent sensory signals and stimuli. This allows for voluntary and involuntary motions of muscles, as well as the perception of senses. All in all 31 spinal nerves project from the brain stem, some forming plexa as they branch out, such as the brachial plexa, sacral plexa etc. Each spinal nerve will carry both sensory and motor signals, but the nerves synapse at different regions of the spinal cord, either from the periphery to sensory relay neurons that relay the information to the CNS or from the CNS to motor neurons, which relay the information out.
The spinal cord relays information up to the brain through spinal tracts through the final common pathway to the thalamus and ultimately to the cortex.
Apart from the spinal cord, there are also peripheral nerves of the PNS that synapse through intermediaries or ganglia directly on the CNS. These 12 nerves exist in the head and neck region and are called cranial nerves. Cranial nerves bring information to the CNS to and from the face, as well as to certain muscles (such as the trapezius muscle, which is innervated by accessory nerves as well as certain cervical spinal nerves).
Two pairs of cranial nerves; the olfactory nerves and the optic nerves are often considered structures of the CNS. This is because they do not synapse first on peripheral ganglia, but directly on CNS neurons. The olfactory epithelium is significant in that it consists of CNS tissue expressed in direct contact to the environment, allowing for administration of certain pharmaceuticals and drugs.
At the anterior end of the spinal cord lies the brain. The brain makes up the largest portion of the CNS. It is often the main structure referred to when speaking of the nervous system in general. The brain is the major functional unit of the CNS. While the spinal cord has certain processing ability such as that of spinal locomotion and can process reflexes, the brain is the major processing unit of the nervous system.
The brainstem consists of the medulla, the pons and the midbrain. The medulla can be referred to as an extension of the spinal cord, which both have similar organization and functional properties. The tracts passing from the spinal cord to the brain pass through here.
Regulatory functions of the medulla nuclei include control of blood pressure and breathing. Other nuclei are involved in balance, taste, hearing, and control of muscles of the face and neck.
The next structure rostral to the medulla is the pons, which lies on the ventral anterior side of the brainstem. Nuclei in the pons include pontine nuclei which work with the cerebellum and transmit information between the cerebellum and the cerebral cortex. In the dorsal posterior pons lie nuclei that are involved in the functions of breathing, sleep, and taste.
The midbrain, or mesencephalon, is situated above and rostral to the pons. It includes nuclei linking distinct parts of the motor system, including the cerebellum, the basal ganglia and both cerebral hemispheres, among others. Additionally, parts of the visual and auditory systems are located in the midbrain, including control of automatic eye movements.
The brainstem at large provides entry and exit to the brain for a number of pathways for motor and autonomic control of the face and neck through cranial nerves, Autonomic control of the organs is mediated by the tenth cranial nerve. A large portion of the brainstem is involved in such autonomic control of the body. Such functions may engage the heart, blood vessels, and pupils, among others.
The brainstem also holds the reticular formation, a group of nuclei involved in both arousal and alertness.
The cerebellum lies behind the pons. The cerebellum is composed of several dividing fissures and lobes. Its function includes the control of posture and the coordination of movements of parts of the body, including the eyes and head, as well as the limbs. Further, it is involved in motion that has been learned and perfected through practice, and it will adapt to new learned movements. Despite its previous classification as a motor structure, the cerebellum also displays connections to areas of the cerebral cortex involved in language and cognition. These connections have been shown by the use of medical imaging techniques, such as functional MRI and Positron emission tomography.
The body of the cerebellum holds more neurons than any other structure of the brain, including that of the larger cerebrum, but is also more extensively understood than other structures of the brain, as it includes fewer types of different neurons. It handles and processes sensory stimuli, motor information, as well as balance information from the vestibular organ.
The two structures of the diencephalon worth noting are the thalamus and the hypothalamus. The thalamus acts as a linkage between incoming pathways from the peripheral nervous system as well as the optical nerve (though it does not receive input from the olfactory nerve) to the cerebral hemispheres. Previously it was considered only a "relay station", but it is engaged in the sorting of information that will reach cerebral hemispheres (neocortex).
Apart from its function of sorting information from the periphery, the thalamus also connects the cerebellum and basal ganglia with the cerebrum. In common with the aforementioned reticular system the thalamus is involved in wakefullness and consciousness, such as though the SCN.
The hypothalamus engages in functions of a number of primitive emotions or feelings such as hunger, thirst and maternal bonding. This is regulated partly through control of secretion of hormones from the pituitary gland. Additionally the hypothalamus plays a role in motivation and many other behaviors of the individual.
The cerebrum of cerebral hemispheres make up the largest visual portion of the human brain. Various structures combine to form the cerebral hemispheres, among others: the cortex, basal ganglia, amygdala and hippocampus. The hemispheres together control a large portion of the functions of the human brain such as emotion, memory, perception and motor functions. Apart from this the cerebral hemispheres stand for the cognitive capabilities of the brain.
Connecting each of the hemispheres is the corpus callosum as well as several additional commissures. One of the most important parts of the cerebral hemispheres is the cortex, made up of gray matter covering the surface of the brain. Functionally, the cerebral cortex is involved in planning and carrying out of everyday tasks.
The hippocampus is involved in storage of memories, the amygdala plays a role in perception and communication of emotion, while the basal ganglia play a major role in the coordination of voluntary movement.
This differentiates the CNS from the PNS, which consists of neurons, axons, and Schwann cells. Oligodendrocytes and Schwann cells have similar functions in the CNS and PNS, respectively. Both act to add myelin sheaths to the axons, which acts as a form of insulation allowing for better and faster proliferation of electrical signals along the nerves. Axons in the CNS are often very short, barely a few millimeters, and do not need the same degree of isolation as peripheral nerves. Some peripheral nerves can be over 1 meter in length, such as the nerves to the big toe. To ensure signals move at sufficient speed, myelination is needed.
The way in which the Schwann cells and oligodendrocytes myelinate nerves differ. A Schwann cell usually myelinates a single axon, completely surrounding it. Sometimes, they may myelinate many axons, especially when in areas of short axons. Oligodendrocytes usually myelinate several axons. They do this by sending out thin projections of their cell membrane, which envelop and enclose the axon.
During early development of the vertebrate embryo, a longitudinal groove on the neural plate gradually deepens and the ridges on either side of the groove (the neural folds) become elevated, and ultimately meet, transforming the groove into a closed tube called the neural tube. The formation of the neural tube is called neurulation. At this stage, the walls of the neural tube contain proliferating neural stem cells in a region called the ventricular zone. The neural stem cells, principally radial glial cells, multiply and generate neurons through the process of neurogenesis, forming the rudiment of the CNS.
The neural tube gives rise to both brain and spinal cord. The anterior (or 'rostral') portion of the neural tube initially differentiates into three brain vesicles (pockets): the prosencephalon at the front, the mesencephalon, and, between the mesencephalon and the spinal cord, the rhombencephalon. (By six weeks in the human embryo) the prosencephalon then divides further into the telencephalon and diencephalon; and the rhombencephalon divides into the metencephalon and myelencephalon. The spinal cord is derived from the posterior or 'caudal' portion of the neural tube.
As a vertebrate grows, these vesicles differentiate further still. The telencephalon differentiates into, among other things, the striatum, the hippocampus and the neocortex, and its cavity becomes the first and second ventricles. Diencephalon elaborations include the subthalamus, hypothalamus, thalamus and epithalamus, and its cavity forms the third ventricle. The tectum, pretectum, cerebral peduncle and other structures develop out of the mesencephalon, and its cavity grows into the mesencephalic duct (cerebral aqueduct). The metencephalon becomes, among other things, the pons and the cerebellum, the myelencephalon forms the medulla oblongata, and their cavities develop into the fourth ventricle.
Planarians, members of the phylum Platyhelminthes (flatworms), have the simplest, clearly defined delineation of a nervous system into a CNS and a PNS. Their primitive brains, consisting of two fused anterior ganglia, and longitudinal nerve cords form the CNS. Like vertebrates, have a distinct CNS and PNS. The nerves projecting laterally from the CNS form their PNS.
A molecular study found that more than 95% of the 116 genes involved in the nervous system of planarians, which includes genes related to the CNS, also exist in humans.
In arthropods, the ventral nerve cord, the subesophageal ganglia and the supraesophageal ganglia are usually seen as making up the CNS. Arthropoda, unlike vertebrates, have inhibitory motor neurons due to their small size.
The CNS of chordates differs from that of other animals in being placed dorsally in the body, above the gut and notochord/spine. The basic pattern of the CNS is highly conserved throughout the different species of vertebrates and during evolution. The major trend that can be observed is towards a progressive telencephalisation: the telencephalon of reptiles is only an appendix to the large olfactory bulb, while in mammals it makes up most of the volume of the CNS. In the human brain, the telencephalon covers most of the diencephalon and the entire mesencephalon. Indeed, the allometric study of brain size among different species shows a striking continuity from rats to whales, and allows us to complete the knowledge about the evolution of the CNS obtained through cranial endocasts.
Mammals – which appear in the fossil record after the first fishes, amphibians, and reptiles – are the only vertebrates to possess the evolutionarily recent, outermost part of the cerebral cortex (main part of the telencephalon excluding olfactory bulb) known as the neocortex. This part of the brain is, in mammals, involved in higher thinking and further processing of all senses in the sensory cortices (processing for smell was previously only done by its bulb while those for non-smell senses were only done by the tectum). The neocortex of monotremes (the duck-billed platypus and several species of spiny anteaters) and of marsupials (such as kangaroos, koalas, opossums, wombats, and Tasmanian devils) lack the convolutions – gyri and sulci – found in the neocortex of most placental mammals (eutherians). Within placental mammals, the size and complexity of the neocortex increased over time. The area of the neocortex of mice is only about 1/100 that of monkeys, and that of monkeys is only about 1/10 that of humans. In addition, rats lack convolutions in their neocortex (possibly also because rats are small mammals), whereas cats have a moderate degree of convolutions, and humans have quite extensive convolutions. Extreme convolution of the neocortex is found in dolphins, possibly related to their complex echolocation.
There are many CNS diseases and conditions, including infections such as encephalitis and poliomyelitis, early-onset neurological disorders including ADHD and autism, seizure disorders such as epilepsy, headache disorders such as migraine, late-onset neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and essential tremor, autoimmune and inflammatory diseases such as multiple sclerosis and acute disseminated encephalomyelitis, genetic disorders such as Krabbe's disease and Huntington's disease, as well as amyotrophic lateral sclerosis and adrenoleukodystrophy. Lastly, cancers of the central nervous system can cause severe illness and, when malignant, can have very high mortality rates. Symptoms depend on the size, growth rate, location and malignancy of tumors and can include alterations in motor control, hearing loss, headaches and changes in cognitive ability and autonomic functioning.
Specialty professional organizations recommend that neurological imaging of the brain be done only to answer a specific clinical question and not as routine screening. | [
{
"paragraph_id": 0,
"text": "The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain plus the spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts. It is a structure composed of nervous tissue positioned along the rostral (nose end) to caudal (tail end) axis of the body and may have an enlarged section at the rostral end which is a brain. Only arthropods, cephalopods and vertebrates have a true brain, though precursor structures exist in onychophorans, gastropods and lancelets.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The rest of this article exclusively discusses the vertebrate central nervous system, which is radically distinct from all other animals.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In vertebrates, the brain and spinal cord are both enclosed in the meninges. The meninges provide a barrier to chemicals dissolved in the blood, protecting the brain from most neurotoxins commonly found in food. Within the meninges the brain and spinal cord are bathed in cerebral spinal fluid which replaces the body fluid found outside the cells of all bilateral animals.",
"title": "Overview"
},
{
"paragraph_id": 3,
"text": "In vertebrates, the CNS is contained within the dorsal body cavity, while the brain is housed in the cranial cavity within the skull. The spinal cord is housed in the spinal canal within the vertebrae. Within the CNS, the interneuronal space is filled with a large amount of supporting non-nervous cells called neuroglia or glia from the Greek for \"glue\".",
"title": "Overview"
},
{
"paragraph_id": 4,
"text": "In vertebrates, the CNS also includes the retina and the optic nerve (cranial nerve II), as well as the olfactory nerves and olfactory epithelium. As parts of the CNS, they connect directly to brain neurons without intermediate ganglia. The olfactory epithelium is the only central nervous tissue outside the meninges in direct contact with the environment, which opens up a pathway for therapeutic agents which cannot otherwise cross the meninges barrier.",
"title": "Overview"
},
{
"paragraph_id": 5,
"text": "The CNS consists of two major structures: the brain and spinal cord. The brain is encased in the skull, and protected by the cranium. The spinal cord is continuous with the brain and lies caudally to the brain. It is protected by the vertebrae. The spinal cord reaches from the base of the skull, and continues through or starting below the foramen magnum, and terminates roughly level with the first or second lumbar vertebra, occupying the upper sections of the vertebral canal.",
"title": "Structure"
},
{
"paragraph_id": 6,
"text": "Microscopically, there are differences between the neurons and tissue of the CNS and the peripheral nervous system (PNS). The CNS is composed of white and gray matter. This can also be seen macroscopically on brain tissue. The white matter consists of axons and oligodendrocytes, while the gray matter consists of neurons and unmyelinated fibers. Both tissues include a number of glial cells (although the white matter contains more), which are often referred to as supporting cells of the CNS. Different forms of glial cells have different functions, some acting almost as scaffolding for neuroblasts to climb during neurogenesis such as bergmann glia, while others such as microglia are a specialized form of macrophage, involved in the immune system of the brain as well as the clearance of various metabolites from the brain tissue. Astrocytes may be involved with both clearance of metabolites as well as transport of fuel and various beneficial substances to neurons from the capillaries of the brain. Upon CNS injury astrocytes will proliferate, causing gliosis, a form of neuronal scar tissue, lacking in functional neurons.",
"title": "Structure"
},
{
"paragraph_id": 7,
"text": "The brain (cerebrum as well as midbrain and hindbrain) consists of a cortex, composed of neuron-bodies constituting gray matter, while internally there is more white matter that form tracts and commissures. Apart from cortical gray matter there is also subcortical gray matter making up a large number of different nuclei.",
"title": "Structure"
},
{
"paragraph_id": 8,
"text": "From and to the spinal cord are projections of the peripheral nervous system in the form of spinal nerves (sometimes segmental nerves). The nerves connect the spinal cord to skin, joints, muscles etc. and allow for the transmission of efferent motor as well as afferent sensory signals and stimuli. This allows for voluntary and involuntary motions of muscles, as well as the perception of senses. All in all 31 spinal nerves project from the brain stem, some forming plexa as they branch out, such as the brachial plexa, sacral plexa etc. Each spinal nerve will carry both sensory and motor signals, but the nerves synapse at different regions of the spinal cord, either from the periphery to sensory relay neurons that relay the information to the CNS or from the CNS to motor neurons, which relay the information out.",
"title": "Structure"
},
{
"paragraph_id": 9,
"text": "The spinal cord relays information up to the brain through spinal tracts through the final common pathway to the thalamus and ultimately to the cortex.",
"title": "Structure"
},
{
"paragraph_id": 10,
"text": "Apart from the spinal cord, there are also peripheral nerves of the PNS that synapse through intermediaries or ganglia directly on the CNS. These 12 nerves exist in the head and neck region and are called cranial nerves. Cranial nerves bring information to the CNS to and from the face, as well as to certain muscles (such as the trapezius muscle, which is innervated by accessory nerves as well as certain cervical spinal nerves).",
"title": "Structure"
},
{
"paragraph_id": 11,
"text": "Two pairs of cranial nerves; the olfactory nerves and the optic nerves are often considered structures of the CNS. This is because they do not synapse first on peripheral ganglia, but directly on CNS neurons. The olfactory epithelium is significant in that it consists of CNS tissue expressed in direct contact to the environment, allowing for administration of certain pharmaceuticals and drugs.",
"title": "Structure"
},
{
"paragraph_id": 12,
"text": "At the anterior end of the spinal cord lies the brain. The brain makes up the largest portion of the CNS. It is often the main structure referred to when speaking of the nervous system in general. The brain is the major functional unit of the CNS. While the spinal cord has certain processing ability such as that of spinal locomotion and can process reflexes, the brain is the major processing unit of the nervous system.",
"title": "Structure"
},
{
"paragraph_id": 13,
"text": "The brainstem consists of the medulla, the pons and the midbrain. The medulla can be referred to as an extension of the spinal cord, which both have similar organization and functional properties. The tracts passing from the spinal cord to the brain pass through here.",
"title": "Structure"
},
{
"paragraph_id": 14,
"text": "Regulatory functions of the medulla nuclei include control of blood pressure and breathing. Other nuclei are involved in balance, taste, hearing, and control of muscles of the face and neck.",
"title": "Structure"
},
{
"paragraph_id": 15,
"text": "The next structure rostral to the medulla is the pons, which lies on the ventral anterior side of the brainstem. Nuclei in the pons include pontine nuclei which work with the cerebellum and transmit information between the cerebellum and the cerebral cortex. In the dorsal posterior pons lie nuclei that are involved in the functions of breathing, sleep, and taste.",
"title": "Structure"
},
{
"paragraph_id": 16,
"text": "The midbrain, or mesencephalon, is situated above and rostral to the pons. It includes nuclei linking distinct parts of the motor system, including the cerebellum, the basal ganglia and both cerebral hemispheres, among others. Additionally, parts of the visual and auditory systems are located in the midbrain, including control of automatic eye movements.",
"title": "Structure"
},
{
"paragraph_id": 17,
"text": "The brainstem at large provides entry and exit to the brain for a number of pathways for motor and autonomic control of the face and neck through cranial nerves, Autonomic control of the organs is mediated by the tenth cranial nerve. A large portion of the brainstem is involved in such autonomic control of the body. Such functions may engage the heart, blood vessels, and pupils, among others.",
"title": "Structure"
},
{
"paragraph_id": 18,
"text": "The brainstem also holds the reticular formation, a group of nuclei involved in both arousal and alertness.",
"title": "Structure"
},
{
"paragraph_id": 19,
"text": "The cerebellum lies behind the pons. The cerebellum is composed of several dividing fissures and lobes. Its function includes the control of posture and the coordination of movements of parts of the body, including the eyes and head, as well as the limbs. Further, it is involved in motion that has been learned and perfected through practice, and it will adapt to new learned movements. Despite its previous classification as a motor structure, the cerebellum also displays connections to areas of the cerebral cortex involved in language and cognition. These connections have been shown by the use of medical imaging techniques, such as functional MRI and Positron emission tomography.",
"title": "Structure"
},
{
"paragraph_id": 20,
"text": "The body of the cerebellum holds more neurons than any other structure of the brain, including that of the larger cerebrum, but is also more extensively understood than other structures of the brain, as it includes fewer types of different neurons. It handles and processes sensory stimuli, motor information, as well as balance information from the vestibular organ.",
"title": "Structure"
},
{
"paragraph_id": 21,
"text": "The two structures of the diencephalon worth noting are the thalamus and the hypothalamus. The thalamus acts as a linkage between incoming pathways from the peripheral nervous system as well as the optical nerve (though it does not receive input from the olfactory nerve) to the cerebral hemispheres. Previously it was considered only a \"relay station\", but it is engaged in the sorting of information that will reach cerebral hemispheres (neocortex).",
"title": "Structure"
},
{
"paragraph_id": 22,
"text": "Apart from its function of sorting information from the periphery, the thalamus also connects the cerebellum and basal ganglia with the cerebrum. In common with the aforementioned reticular system the thalamus is involved in wakefullness and consciousness, such as though the SCN.",
"title": "Structure"
},
{
"paragraph_id": 23,
"text": "The hypothalamus engages in functions of a number of primitive emotions or feelings such as hunger, thirst and maternal bonding. This is regulated partly through control of secretion of hormones from the pituitary gland. Additionally the hypothalamus plays a role in motivation and many other behaviors of the individual.",
"title": "Structure"
},
{
"paragraph_id": 24,
"text": "The cerebrum of cerebral hemispheres make up the largest visual portion of the human brain. Various structures combine to form the cerebral hemispheres, among others: the cortex, basal ganglia, amygdala and hippocampus. The hemispheres together control a large portion of the functions of the human brain such as emotion, memory, perception and motor functions. Apart from this the cerebral hemispheres stand for the cognitive capabilities of the brain.",
"title": "Structure"
},
{
"paragraph_id": 25,
"text": "Connecting each of the hemispheres is the corpus callosum as well as several additional commissures. One of the most important parts of the cerebral hemispheres is the cortex, made up of gray matter covering the surface of the brain. Functionally, the cerebral cortex is involved in planning and carrying out of everyday tasks.",
"title": "Structure"
},
{
"paragraph_id": 26,
"text": "The hippocampus is involved in storage of memories, the amygdala plays a role in perception and communication of emotion, while the basal ganglia play a major role in the coordination of voluntary movement.",
"title": "Structure"
},
{
"paragraph_id": 27,
"text": "This differentiates the CNS from the PNS, which consists of neurons, axons, and Schwann cells. Oligodendrocytes and Schwann cells have similar functions in the CNS and PNS, respectively. Both act to add myelin sheaths to the axons, which acts as a form of insulation allowing for better and faster proliferation of electrical signals along the nerves. Axons in the CNS are often very short, barely a few millimeters, and do not need the same degree of isolation as peripheral nerves. Some peripheral nerves can be over 1 meter in length, such as the nerves to the big toe. To ensure signals move at sufficient speed, myelination is needed.",
"title": "Structure"
},
{
"paragraph_id": 28,
"text": "The way in which the Schwann cells and oligodendrocytes myelinate nerves differ. A Schwann cell usually myelinates a single axon, completely surrounding it. Sometimes, they may myelinate many axons, especially when in areas of short axons. Oligodendrocytes usually myelinate several axons. They do this by sending out thin projections of their cell membrane, which envelop and enclose the axon.",
"title": "Structure"
},
{
"paragraph_id": 29,
"text": "During early development of the vertebrate embryo, a longitudinal groove on the neural plate gradually deepens and the ridges on either side of the groove (the neural folds) become elevated, and ultimately meet, transforming the groove into a closed tube called the neural tube. The formation of the neural tube is called neurulation. At this stage, the walls of the neural tube contain proliferating neural stem cells in a region called the ventricular zone. The neural stem cells, principally radial glial cells, multiply and generate neurons through the process of neurogenesis, forming the rudiment of the CNS.",
"title": "Development"
},
{
"paragraph_id": 30,
"text": "The neural tube gives rise to both brain and spinal cord. The anterior (or 'rostral') portion of the neural tube initially differentiates into three brain vesicles (pockets): the prosencephalon at the front, the mesencephalon, and, between the mesencephalon and the spinal cord, the rhombencephalon. (By six weeks in the human embryo) the prosencephalon then divides further into the telencephalon and diencephalon; and the rhombencephalon divides into the metencephalon and myelencephalon. The spinal cord is derived from the posterior or 'caudal' portion of the neural tube.",
"title": "Development"
},
{
"paragraph_id": 31,
"text": "As a vertebrate grows, these vesicles differentiate further still. The telencephalon differentiates into, among other things, the striatum, the hippocampus and the neocortex, and its cavity becomes the first and second ventricles. Diencephalon elaborations include the subthalamus, hypothalamus, thalamus and epithalamus, and its cavity forms the third ventricle. The tectum, pretectum, cerebral peduncle and other structures develop out of the mesencephalon, and its cavity grows into the mesencephalic duct (cerebral aqueduct). The metencephalon becomes, among other things, the pons and the cerebellum, the myelencephalon forms the medulla oblongata, and their cavities develop into the fourth ventricle.",
"title": "Development"
},
{
"paragraph_id": 32,
"text": "Planarians, members of the phylum Platyhelminthes (flatworms), have the simplest, clearly defined delineation of a nervous system into a CNS and a PNS. Their primitive brains, consisting of two fused anterior ganglia, and longitudinal nerve cords form the CNS. Like vertebrates, have a distinct CNS and PNS. The nerves projecting laterally from the CNS form their PNS.",
"title": "Development"
},
{
"paragraph_id": 33,
"text": "A molecular study found that more than 95% of the 116 genes involved in the nervous system of planarians, which includes genes related to the CNS, also exist in humans.",
"title": "Development"
},
{
"paragraph_id": 34,
"text": "In arthropods, the ventral nerve cord, the subesophageal ganglia and the supraesophageal ganglia are usually seen as making up the CNS. Arthropoda, unlike vertebrates, have inhibitory motor neurons due to their small size.",
"title": "Development"
},
{
"paragraph_id": 35,
"text": "The CNS of chordates differs from that of other animals in being placed dorsally in the body, above the gut and notochord/spine. The basic pattern of the CNS is highly conserved throughout the different species of vertebrates and during evolution. The major trend that can be observed is towards a progressive telencephalisation: the telencephalon of reptiles is only an appendix to the large olfactory bulb, while in mammals it makes up most of the volume of the CNS. In the human brain, the telencephalon covers most of the diencephalon and the entire mesencephalon. Indeed, the allometric study of brain size among different species shows a striking continuity from rats to whales, and allows us to complete the knowledge about the evolution of the CNS obtained through cranial endocasts.",
"title": "Development"
},
{
"paragraph_id": 36,
"text": "Mammals – which appear in the fossil record after the first fishes, amphibians, and reptiles – are the only vertebrates to possess the evolutionarily recent, outermost part of the cerebral cortex (main part of the telencephalon excluding olfactory bulb) known as the neocortex. This part of the brain is, in mammals, involved in higher thinking and further processing of all senses in the sensory cortices (processing for smell was previously only done by its bulb while those for non-smell senses were only done by the tectum). The neocortex of monotremes (the duck-billed platypus and several species of spiny anteaters) and of marsupials (such as kangaroos, koalas, opossums, wombats, and Tasmanian devils) lack the convolutions – gyri and sulci – found in the neocortex of most placental mammals (eutherians). Within placental mammals, the size and complexity of the neocortex increased over time. The area of the neocortex of mice is only about 1/100 that of monkeys, and that of monkeys is only about 1/10 that of humans. In addition, rats lack convolutions in their neocortex (possibly also because rats are small mammals), whereas cats have a moderate degree of convolutions, and humans have quite extensive convolutions. Extreme convolution of the neocortex is found in dolphins, possibly related to their complex echolocation.",
"title": "Development"
},
{
"paragraph_id": 37,
"text": "There are many CNS diseases and conditions, including infections such as encephalitis and poliomyelitis, early-onset neurological disorders including ADHD and autism, seizure disorders such as epilepsy, headache disorders such as migraine, late-onset neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and essential tremor, autoimmune and inflammatory diseases such as multiple sclerosis and acute disseminated encephalomyelitis, genetic disorders such as Krabbe's disease and Huntington's disease, as well as amyotrophic lateral sclerosis and adrenoleukodystrophy. Lastly, cancers of the central nervous system can cause severe illness and, when malignant, can have very high mortality rates. Symptoms depend on the size, growth rate, location and malignancy of tumors and can include alterations in motor control, hearing loss, headaches and changes in cognitive ability and autonomic functioning.",
"title": "Clinical significance"
},
{
"paragraph_id": 38,
"text": "Specialty professional organizations recommend that neurological imaging of the brain be done only to answer a specific clinical question and not as routine screening.",
"title": "Clinical significance"
},
{
"paragraph_id": 39,
"text": "",
"title": "External links"
}
] | The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain plus the spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts. It is a structure composed of nervous tissue positioned along the rostral to caudal axis of the body and may have an enlarged section at the rostral end which is a brain. Only arthropods, cephalopods and vertebrates have a true brain, though precursor structures exist in onychophorans, gastropods and lancelets. The rest of this article exclusively discusses the vertebrate central nervous system, which is radically distinct from all other animals. | 2001-11-27T16:35:29Z | 2023-12-11T08:30:13Z | [
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] | https://en.wikipedia.org/wiki/Central_nervous_system |
7,252 | Cell cycle | The cell cycle, or cell-division cycle, is the series of events that take place in a cell that causes it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subsequently the partitioning of its cytoplasm, chromosomes and other components into two daughter cells in a process called cell division.
In eukaryotic cells (having a cell nucleus) including animal, plant, fungal, and protist cells, the cell cycle is divided into two main stages: interphase, and mitosis in the M phase that also includes cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, and replicates its DNA and some of its organelles. During the M phase, the replicated chromosomes, organelles, and cytoplasm separate into two new daughter cells. To ensure the proper replication of cellular components and division, there are control mechanisms known as cell cycle checkpoints after each of the key steps of the cycle that determine if the cell can progress to the next phase.
In cells without nuclei the prokaryotes, bacteria and archaea, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication. DNA replication occurs during the C period. The D period refers to the stage between the end of DNA replication and the splitting of the bacterial cell into two daughter cells.
In single-celled organisms, a single cell-division cycle is how the organism replicates itself. In multicellular organisms such as plants and animals, a series of cell-division cycles is how the organism develops from a single-celled fertilized egg into a mature organism, and is also the process by which hair, skin, blood cells, and some internal organs are regenerated and healed (with possible exception of nerves; see nerve damage). After cell division, each of the daughter cells begin the interphase of a new cell cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of the cell division.
The eukaryotic cell cycle consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as interphase) and M phase (mitosis and cytokinesis). M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's nucleus divides, and cytokinesis, in which the cell's cytoplasm divides forming two daughter cells. Activation of each phase is dependent on the proper progression and completion of the previous one. Cells that have temporarily or reversibly stopped dividing are said to have entered a state of quiescence called G0 phase.
After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.
G0 is a resting phase where the cell has left the cycle and has stopped dividing. The cell cycle starts with this phase. Non-proliferative (non-dividing) cells in multicellular eukaryotes generally enter the quiescent G0 state from G1 and may remain quiescent for long periods of time, possibly indefinitely (as is often the case for neurons). This is very common for cells that are fully differentiated. Some cells enter the G0 phase semi-permanently and are considered post-mitotic, e.g., some liver, kidney, and stomach cells. Many cells do not enter G0 and continue to divide throughout an organism's life, e.g., epithelial cells.
The word "post-mitotic" is sometimes used to refer to both quiescent and senescent cells. Cellular senescence occurs in response to DNA damage and external stress and usually constitutes an arrest in G1. Cellular senescence may make a cell's progeny nonviable; it is often a biochemical alternative to the self-destruction of such a damaged cell by apoptosis.
Interphase represent the phase between two successive M phases. Interphase is a series of changes that takes place in a newly formed cell and its nucleus before it becomes capable of division again. It is also called preparatory phase or intermitosis. Typically interphase lasts for at least 91% of the total time required for the cell cycle.
Interphase proceeds in three stages, G1, S, and G2, followed by the cycle of mitosis and cytokinesis. The cell's nuclear DNA contents are duplicated during S phase.
The first phase within interphase, from the end of the previous M phase until the beginning of DNA synthesis, is called G1 (G indicating gap). It is also called the growth phase. During this phase, the biosynthetic activities of the cell, which are considerably slowed down during M phase, resume at a high rate. The duration of G1 is highly variable, even among different cells of the same species. In this phase, the cell increases its supply of proteins, increases the number of organelles (such as mitochondria, ribosomes), and grows in size. In G1 phase, a cell has three options.
The deciding point is called check point (Restriction point). This check point is called the restriction point or START and is regulated by G1/S cyclins, which cause transition from G1 to S phase. Passage through the G1 check point commits the cell to division.
The ensuing S phase starts when DNA synthesis commences; when it is complete, all of the chromosomes have been replicated, i.e., each chromosome consists of two sister chromatids. Thus, during this phase, the amount of DNA in the cell has doubled, though the ploidy and number of chromosomes are unchanged. Rates of RNA transcription and protein synthesis are very low during this phase. An exception to this is histone production, most of which occurs during the S phase.
G2 phase occurs after DNA replication and is a period of protein synthesis and rapid cell growth to prepare the cell for mitosis. During this phase microtubules begin to reorganize to form a spindle (preprophase). Before proceeding to mitotic phase, cells must be checked at the G2 checkpoint for any DNA damage within the chromosomes. The G2 checkpoint is mainly regulated by the tumor protein p53. If the DNA is damaged, p53 will either repair the DNA or trigger the apoptosis of the cell. If p53 is dysfunctional or mutated, cells with damaged DNA may continue through the cell cycle, leading to the development of cancer.
The relatively brief M phase consists of nuclear division (karyokinesis). It is a relatively short period of the cell cycle. M phase is complex and highly regulated. The sequence of events is divided into phases, corresponding to the completion of one set of activities and the start of the next. These phases are sequentially known as:
Mitosis is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two nuclei. During the process of mitosis the pairs of chromosomes condense and attach to microtubules that pull the sister chromatids to opposite sides of the cell.
Mitosis occurs exclusively in eukaryotic cells, but occurs in different ways in different species. For example, animal cells undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae (yeast) undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus.
Mitosis is immediately followed by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell. This accounts for approximately 10% of the cell cycle.
Because cytokinesis usually occurs in conjunction with mitosis, "mitosis" is often used interchangeably with "M phase". However, there are many cells where mitosis and cytokinesis occur separately, forming single cells with multiple nuclei in a process called endoreplication. This occurs most notably among the fungi and slime molds, but is found in various groups. Even in animals, cytokinesis and mitosis may occur independently, for instance during certain stages of fruit fly embryonic development. Errors in mitosis can result in cell death through apoptosis or cause mutations that may lead to cancer.
Regulation of the cell cycle involves processes crucial to the survival of a cell, including the detection and repair of genetic damage as well as the prevention of uncontrolled cell division. The molecular events that control the cell cycle are ordered and directional; that is, each process occurs in a sequential fashion and it is impossible to "reverse" the cycle.
Two key classes of regulatory molecules, cyclins and cyclin-dependent kinases (CDKs), determine a cell's progress through the cell cycle. Leland H. Hartwell, R. Timothy Hunt, and Paul M. Nurse won the 2001 Nobel Prize in Physiology or Medicine for their discovery of these central molecules. Many of the genes encoding cyclins and CDKs are conserved among all eukaryotes, but in general, more complex organisms have more elaborate cell cycle control systems that incorporate more individual components. Many of the relevant genes were first identified by studying yeast, especially Saccharomyces cerevisiae; genetic nomenclature in yeast dubs many of these genes cdc (for "cell division cycle") followed by an identifying number, e.g. cdc25 or cdc20.
Cyclins form the regulatory subunits and CDKs the catalytic subunits of an activated heterodimer; cyclins have no catalytic activity and CDKs are inactive in the absence of a partner cyclin. When activated by a bound cyclin, CDKs perform a common biochemical reaction called phosphorylation that activates or inactivates target proteins to orchestrate coordinated entry into the next phase of the cell cycle. Different cyclin-CDK combinations determine the downstream proteins targeted. CDKs are constitutively expressed in cells whereas cyclins are synthesised at specific stages of the cell cycle, in response to various molecular signals.
Upon receiving a pro-mitotic extracellular signal, G1 cyclin-CDK complexes become active to prepare the cell for S phase, promoting the expression of transcription factors that in turn promote the expression of S cyclins and of enzymes required for DNA replication. The G1 cyclin-CDK complexes also promote the degradation of molecules that function as S phase inhibitors by targeting them for ubiquitination. Once a protein has been ubiquitinated, it is targeted for proteolytic degradation by the proteasome. However, results from a recent study of E2F transcriptional dynamics at the single-cell level argue that the role of G1 cyclin-CDK activities, in particular cyclin D-CDK4/6, is to tune the timing rather than the commitment of cell cycle entry.
Active S cyclin-CDK complexes phosphorylate proteins that make up the pre-replication complexes assembled during G1 phase on DNA replication origins. The phosphorylation serves two purposes: to activate each already-assembled pre-replication complex, and to prevent new complexes from forming. This ensures that every portion of the cell's genome will be replicated once and only once. The reason for prevention of gaps in replication is fairly clear, because daughter cells that are missing all or part of crucial genes will die. However, for reasons related to gene copy number effects, possession of extra copies of certain genes is also deleterious to the daughter cells.
Mitotic cyclin-CDK complexes, which are synthesized but inactivated during S and G2 phases, promote the initiation of mitosis by stimulating downstream proteins involved in chromosome condensation and mitotic spindle assembly. A critical complex activated during this process is a ubiquitin ligase known as the anaphase-promoting complex (APC), which promotes degradation of structural proteins associated with the chromosomal kinetochore. APC also targets the mitotic cyclins for degradation, ensuring that telophase and cytokinesis can proceed.
Cyclin D is the first cyclin produced in the cells that enter the cell cycle, in response to extracellular signals (e.g. growth factors). Cyclin D levels stay low in resting cells that are not proliferating. Additionally, CDK4/6 and CDK2 are also inactive because CDK4/6 are bound by INK4 family members (e.g., p16), limiting kinase activity. Meanwhile, CDK2 complexes are inhibited by the CIP/KIP proteins such as p21 and p27, When it is time for a cell to enter the cell cycle, which is triggered by a mitogenic stimuli, levels of cyclin D increase. In response to this trigger, cyclin D binds to existing CDK4/6, forming the active cyclin D-CDK4/6 complex. Cyclin D-CDK4/6 complexes in turn mono-phosphorylates the retinoblastoma susceptibility protein (Rb) to pRb. The un-phosphorylated Rb tumour suppressor functions in inducing cell cycle exit and maintaining G0 arrest (senescence).
In the last few decades, a model has been widely accepted whereby pRB proteins are inactivated by cyclin D-Cdk4/6-mediated phosphorylation. Rb has 14+ potential phosphorylation sites. Cyclin D-Cdk 4/6 progressively phosphorylates Rb to hyperphosphorylated state, which triggers dissociation of pRB–E2F complexes, thereby inducing G1/S cell cycle gene expression and progression into S phase.
However, scientific observations from a recent study show that Rb is present in three types of isoforms: (1) un-phosphorylated Rb in G0 state; (2) mono-phosphorylated Rb, also referred to as "hypo-phosphorylated' or 'partially' phosphorylated Rb in early G1 state; and (3) inactive hyper-phosphorylated Rb in late G1 state. In early G1 cells, mono-phosphorylated Rb exits as 14 different isoforms, one of each has distinct E2F binding affinity. Rb has been found to associate with hundreds of different proteins and the idea that different mono-phosphorylated Rb isoforms have different protein partners was very appealing. A recent report confirmed that mono-phosphorylation controls Rb's association with other proteins and generates functional distinct forms of Rb. All different mono-phosphorylated Rb isoforms inhibit E2F transcriptional program and are able to arrest cells in G1-phase. Importantly, different mono-phosphorylated forms of Rb have distinct transcriptional outputs that are extended beyond E2F regulation.
In general, the binding of pRb to E2F inhibits the E2F target gene expression of certain G1/S and S transition genes including E-type cyclins. The partial phosphorylation of Rb de-represses the Rb-mediated suppression of E2F target gene expression, begins the expression of cyclin E. The molecular mechanism that causes the cell switched to cyclin E activation is currently not known, but as cyclin E levels rise, the active cyclin E-CDK2 complex is formed, bringing Rb to be inactivated by hyper-phosphorylation. Hyperphosphorylated Rb is completely dissociated from E2F, enabling further expression of a wide range of E2F target genes are required for driving cells to proceed into S phase [1]. Recently, it has been identified that cyclin D-Cdk4/6 binds to a C-terminal alpha-helix region of Rb that is only distinguishable to cyclin D rather than other cyclins, cyclin E, A and B. This observation based on the structural analysis of Rb phosphorylation supports that Rb is phosphorylated in a different level through multiple Cyclin-Cdk complexes. This also makes feasible the current model of a simultaneous switch-like inactivation of all mono-phosphorylated Rb isoforms through one type of Rb hyper-phosphorylation mechanism. In addition, mutational analysis of the cyclin D- Cdk 4/6 specific Rb C-terminal helix shows that disruptions of cyclin D-Cdk 4/6 binding to Rb prevents Rb phosphorylation, arrests cells in G1, and bolsters Rb's functions in tumor suppressor. This cyclin-Cdk driven cell cycle transitional mechanism governs a cell committed to the cell cycle that allows cell proliferation. A cancerous cell growth often accompanies with deregulation of Cyclin D-Cdk 4/6 activity.
The hyperphosphorylated Rb dissociates from the E2F/DP1/Rb complex (which was bound to the E2F responsive genes, effectively "blocking" them from transcription), activating E2F. Activation of E2F results in transcription of various genes like cyclin E, cyclin A, DNA polymerase, thymidine kinase, etc. Cyclin E thus produced binds to CDK2, forming the cyclin E-CDK2 complex, which pushes the cell from G1 to S phase (G1/S, which initiates the G2/M transition). Cyclin B-cdk1 complex activation causes breakdown of nuclear envelope and initiation of prophase, and subsequently, its deactivation causes the cell to exit mitosis. A quantitative study of E2F transcriptional dynamics at the single-cell level by using engineered fluorescent reporter cells provided a quantitative framework for understanding the control logic of cell cycle entry, challenging the canonical textbook model. Genes that regulate the amplitude of E2F accumulation, such as Myc, determine the commitment in cell cycle and S phase entry. G1 cyclin-CDK activities are not the driver of cell cycle entry. Instead, they primarily tune the timing of E2F increase, thereby modulating the pace of cell cycle progression.
Two families of genes, the cip/kip (CDK interacting protein/Kinase inhibitory protein) family and the INK4a/ARF (Inhibitor of Kinase 4/Alternative Reading Frame) family, prevent the progression of the cell cycle. Because these genes are instrumental in prevention of tumor formation, they are known as tumor suppressors.
The cip/kip family includes the genes p21, p27 and p57. They halt the cell cycle in G1 phase by binding to and inactivating cyclin-CDK complexes. p21 is activated by p53 (which, in turn, is triggered by DNA damage e.g. due to radiation). p27 is activated by Transforming Growth Factor β (TGF β), a growth inhibitor.
The INK4a/ARF family includes p16, which binds to CDK4 and arrests the cell cycle in G1 phase, and p14 which prevents p53 degradation.
Synthetic inhibitors of Cdc25 could also be useful for the arrest of cell cycle and therefore be useful as antineoplastic and anticancer agents.
Many human cancers possess the hyper-activated Cdk 4/6 activities. Given the observations of cyclin D-Cdk 4/6 functions, inhibition of Cdk 4/6 should result in preventing a malignant tumor from proliferating. Consequently, scientists have tried to invent the synthetic Cdk4/6 inhibitor as Cdk4/6 has been characterized to be a therapeutic target for anti-tumor effectiveness. Three Cdk4/6 inhibitors - palbociclib, ribociclib, and abemaciclib - currently received FDA approval for clinical use to treat advanced-stage or metastatic, hormone-receptor-positive (HR-positive, HR+), HER2-negative (HER2-) breast cancer. For example, palbociclib is an orally active CDK4/6 inhibitor which has demonstrated improved outcomes for ER-positive/HER2-negative advanced breast cancer. The main side effect is neutropenia which can be managed by dose reduction.
Cdk4/6 targeted therapy will only treat cancer types where Rb is expressed. Cancer cells with loss of Rb have primary resistance to Cdk4/6 inhibitors.
Current evidence suggests that a semi-autonomous transcriptional network acts in concert with the CDK-cyclin machinery to regulate the cell cycle. Several gene expression studies in Saccharomyces cerevisiae have identified 800–1200 genes that change expression over the course of the cell cycle. They are transcribed at high levels at specific points in the cell cycle, and remain at lower levels throughout the rest of the cycle. While the set of identified genes differs between studies due to the computational methods and criteria used to identify them, each study indicates that a large portion of yeast genes are temporally regulated.
Many periodically expressed genes are driven by transcription factors that are also periodically expressed. One screen of single-gene knockouts identified 48 transcription factors (about 20% of all non-essential transcription factors) that show cell cycle progression defects. Genome-wide studies using high throughput technologies have identified the transcription factors that bind to the promoters of yeast genes, and correlating these findings with temporal expression patterns have allowed the identification of transcription factors that drive phase-specific gene expression. The expression profiles of these transcription factors are driven by the transcription factors that peak in the prior phase, and computational models have shown that a CDK-autonomous network of these transcription factors is sufficient to produce steady-state oscillations in gene expression).
Experimental evidence also suggests that gene expression can oscillate with the period seen in dividing wild-type cells independently of the CDK machinery. Orlando et al. used microarrays to measure the expression of a set of 1,271 genes that they identified as periodic in both wild type cells and cells lacking all S-phase and mitotic cyclins (clb1,2,3,4,5,6). Of the 1,271 genes assayed, 882 continued to be expressed in the cyclin-deficient cells at the same time as in the wild type cells, despite the fact that the cyclin-deficient cells arrest at the border between G1 and S phase. However, 833 of the genes assayed changed behavior between the wild type and mutant cells, indicating that these genes are likely directly or indirectly regulated by the CDK-cyclin machinery. Some genes that continued to be expressed on time in the mutant cells were also expressed at different levels in the mutant and wild type cells. These findings suggest that while the transcriptional network may oscillate independently of the CDK-cyclin oscillator, they are coupled in a manner that requires both to ensure the proper timing of cell cycle events. Other work indicates that phosphorylation, a post-translational modification, of cell cycle transcription factors by Cdk1 may alter the localization or activity of the transcription factors in order to tightly control timing of target genes.
While oscillatory transcription plays a key role in the progression of the yeast cell cycle, the CDK-cyclin machinery operates independently in the early embryonic cell cycle. Before the midblastula transition, zygotic transcription does not occur and all needed proteins, such as the B-type cyclins, are translated from maternally loaded mRNA.
Analyses of synchronized cultures of Saccharomyces cerevisiae under conditions that prevent DNA replication initiation without delaying cell cycle progression showed that origin licensing decreases the expression of genes with origins near their 3' ends, revealing that downstream origins can regulate the expression of upstream genes. This confirms previous predictions from mathematical modeling of a global causal coordination between DNA replication origin activity and mRNA expression, and shows that mathematical modeling of DNA microarray data can be used to correctly predict previously unknown biological modes of regulation.
Cell cycle checkpoints are used by the cell to monitor and regulate the progress of the cell cycle. Checkpoints prevent cell cycle progression at specific points, allowing verification of necessary phase processes and repair of DNA damage. The cell cannot proceed to the next phase until checkpoint requirements have been met. Checkpoints typically consist of a network of regulatory proteins that monitor and dictate the progression of the cell through the different stages of the cell cycle.
It is estimated that in normal human cells about 1% of single-strand DNA damages are converted to about 50 endogenous DNA double-strand breaks per cell per cell cycle. Although such double-strand breaks are usually repaired with high fidelity, errors in their repair are considered to contribute significantly to the rate of cancer in humans.
There are several checkpoints to ensure that damaged or incomplete DNA is not passed on to daughter cells. Three main checkpoints exist: the G1/S checkpoint, the G2/M checkpoint and the metaphase (mitotic) checkpoint. Another checkpoint is the Go checkpoint, in which the cells are checked for maturity. If the cells fail to pass this checkpoint by not being ready yet, they will be discarded from dividing.
G1/S transition is a rate-limiting step in the cell cycle and is also known as restriction point. This is where the cell checks whether it has enough raw materials to fully replicate its DNA (nucleotide bases, DNA synthase, chromatin, etc.). An unhealthy or malnourished cell will get stuck at this checkpoint.
The G2/M checkpoint is where the cell ensures that it has enough cytoplasm and phospholipids for two daughter cells. But sometimes more importantly, it checks to see if it is the right time to replicate. There are some situations where many cells need to all replicate simultaneously (for example, a growing embryo should have a symmetric cell distribution until it reaches the mid-blastula transition). This is done by controlling the G2/M checkpoint.
The metaphase checkpoint is a fairly minor checkpoint, in that once a cell is in metaphase, it has committed to undergoing mitosis. However that's not to say it isn't important. In this checkpoint, the cell checks to ensure that the spindle has formed and that all of the chromosomes are aligned at the spindle equator before anaphase begins.
While these are the three "main" checkpoints, not all cells have to pass through each of these checkpoints in this order to replicate. Many types of cancer are caused by mutations that allow the cells to speed through the various checkpoints or even skip them altogether. Going from S to M to S phase almost consecutively. Because these cells have lost their checkpoints, any DNA mutations that may have occurred are disregarded and passed on to the daughter cells. This is one reason why cancer cells have a tendency to exponentially acquire mutations. Aside from cancer cells, many fully differentiated cell types no longer replicate so they leave the cell cycle and stay in G0 until their death. Thus removing the need for cellular checkpoints. An alternative model of the cell cycle response to DNA damage has also been proposed, known as the postreplication checkpoint.
Checkpoint regulation plays an important role in an organism's development. In sexual reproduction, when egg fertilization occurs, when the sperm binds to the egg, it releases signalling factors that notify the egg that it has been fertilized. Among other things, this induces the now fertilized oocyte to return from its previously dormant, G0, state back into the cell cycle and on to mitotic replication and division.
p53 plays an important role in triggering the control mechanisms at both G1/S and G2/M checkpoints. In addition to p53, checkpoint regulators are being heavily researched for their roles in cancer growth and proliferation.
Pioneering work by Atsushi Miyawaki and coworkers developed the fluorescent ubiquitination-based cell cycle indicator (FUCCI), which enables fluorescence imaging of the cell cycle. Originally, a green fluorescent protein, mAG, was fused to hGem(1/110) and an orange fluorescent protein (mKO2) was fused to hCdt1(30/120). Note, these fusions are fragments that contain a nuclear localization signal and ubiquitination sites for degradation, but are not functional proteins. The green fluorescent protein is made during the S, G2, or M phase and degraded during the G0 or G1 phase, while the orange fluorescent protein is made during the G0 or G1 phase and destroyed during the S, G2, or M phase. A far-red and near-infrared FUCCI was developed using a cyanobacteria-derived fluorescent protein (smURFP) and a bacteriophytochrome-derived fluorescent protein (movie found at this link).
A disregulation of the cell cycle components may lead to tumor formation. As mentioned above, when some genes like the cell cycle inhibitors, RB, p53 etc. mutate, they may cause the cell to multiply uncontrollably, forming a tumor. Although the duration of cell cycle in tumor cells is equal to or longer than that of normal cell cycle, the proportion of cells that are in active cell division (versus quiescent cells in G0 phase) in tumors is much higher than that in normal tissue. Thus there is a net increase in cell number as the number of cells that die by apoptosis or senescence remains the same.
The cells which are actively undergoing cell cycle are targeted in cancer therapy as the DNA is relatively exposed during cell division and hence susceptible to damage by drugs or radiation. This fact is made use of in cancer treatment; by a process known as debulking, a significant mass of the tumor is removed which pushes a significant number of the remaining tumor cells from G0 to G1 phase (due to increased availability of nutrients, oxygen, growth factors etc.). Radiation or chemotherapy following the debulking procedure kills these cells which have newly entered the cell cycle.
The fastest cycling mammalian cells in culture, crypt cells in the intestinal epithelium, have a cycle time as short as 9 to 10 hours. Stem cells in resting mouse skin may have a cycle time of more than 200 hours. Most of this difference is due to the varying length of G1, the most variable phase of the cycle. M and S do not vary much.
In general, cells are most radiosensitive in late M and G2 phases and most resistant in late S phase. For cells with a longer cell cycle time and a significantly long G1 phase, there is a second peak of resistance late in G1. The pattern of resistance and sensitivity correlates with the level of sulfhydryl compounds in the cell. Sulfhydryls are natural substances that protect cells from radiation damage and tend to be at their highest levels in S and at their lowest near mitosis.
Homologous recombination (HR) is an accurate process for repairing DNA double-strand breaks. HR is nearly absent in G1 phase, is most active in S phase, and declines in G2/M. Non-homologous end joining, a less accurate and more mutagenic process for repairing double strand breaks, is active throughout the cell cycle.
The cell cycle must duplicate all cellular constituents and equally partition them into two daughter cells. Many constituents, such as proteins and ribosomes, are produced continuously throughout the cell cycle (except during M-phase). However, the chromosomes and other associated elements like MTOCs, are duplicated just once during the cell cycle. A central component of the cell cycle is its ability to coordinate the continuous and periodic duplications of different cellular elements, which evolved with the formation of the genome.
The pre-cellular environment contained functional and self-replicating RNAs. All RNA concentrations depended on the concentrations of other RNAs that might be helping or hindering the gathering of resources. In this environment, growth was simply the continuous production of RNAs. These pre-cellular structures would have had to contend with parasitic RNAs, issues of inheritance, and copy-number control of specific RNAs.
Partitioning “genomic” RNA from “functional” RNA helped solve these problems. The fusion of multiple RNAs into a genome gave a template from which functional RNAs were cleaved. Now, parasitic RNAs would have to incorporate themselves into the genome, a much greater barrier, in order to survive. Controlling the copy number of genomic RNA also allowed RNA concentration to be determined through synthesis rates and RNA half-lives, instead of competition. Separating the duplication of genomic RNAs from the generation of functional RNAs allowed for much greater duplication fidelity of genomic RNAs without compromising the production of functional RNAs. Finally, the replacement of genomic RNA with DNA, which is a more stable molecule, allowed for larger genomes. The transition from self-catalysis enzyme synthesis to genome-directed enzyme synthesis was a critical step in cell evolution, and had lasting implications on the cell cycle, which must regulate functional synthesis and genomic duplication in very different ways.
Cell-cycle progression is controlled by the oscillating concentrations of different cyclins and the resulting molecular interactions from the various cyclin-dependent kinases (CDKs). In yeast, just one CDK (Cdc28 in S. cerevisiae and Cdc2 in S. pombe) controls the cell cycle. However, in animals, whole families of CDKs have evolved. Cdk1 controls entry to mitosis and Cdk2, Cdk4, and Cdk6 regulate entry into S phase. Despite the evolution of the CDK family in animals, these proteins have related or redundant functions. For example, cdk2 cdk4 cdk6 triple knockout mice cells can still progress through the basic cell cycle. cdk1 knockouts are lethal, which suggests an ancestral CDK1-type kinase ultimately controlling the cell cycle.
Arabidopsis thaliana has a Cdk1 homolog called CDKA;1, however cdka;1 A. thaliana mutants are still viable, running counter to the opisthokont pattern of CDK1-type kinases as essential regulators controlling the cell cycle. Plants also have a unique group of B-type CDKs, whose functions may range from development-specific functions to major players in mitotic regulation.
The G1/S checkpoint is the point at which the cell commits to division through the cell cycle. Complex regulatory networks lead to the G1/S transition decision. Across opisthokonts, there are both highly diverged protein sequences as well as strikingly similar network topologies.
Entry into S-phase in both yeast and animals is controlled by the levels of two opposing regulators. The networks regulating these transcription factors are double-negative feedback loops and positive feedback loops in both yeast and animals. Additional regulation of the regulatory network for the G1/S checkpoint in yeast and animals includes the phosphorylation/de-phosphorylation of CDK-cyclin complexes. The sum of these regulatory networks creates a hysteretic and bistable scheme, despite the specific proteins being highly diverged. For yeast, Whi5 must be suppressed by Cln3 phosphorylation for SBF to be expressed, while in animals Rb must be suppressed by the Cdk4/6-cyclin D complex for E2F to be expressed. Both Rb and Whi5 inhibit transcript through the recruitment of histone deacetylase proteins to promoters. Both proteins additionally have multiple CDK phosphorylation sites through which they are inhibited. However, these proteins share no sequence similarity.
Studies in A. thaliana extend our knowledge of the G1/S transition across eukaryotes as a whole. Plants also share a number of conserved network features with opisthokonts, and many plant regulators have direct animal homologs. For example, plants also need to suppress Rb for E2F translation in the network. These conserved elements of the plant and animal cell cycles may be ancestral in eukaryotes. While yeast share a conserved network topology with plants and animals, the highly diverged nature of yeast regulators suggests possible rapid evolution along the yeast lineage. | [
{
"paragraph_id": 0,
"text": "The cell cycle, or cell-division cycle, is the series of events that take place in a cell that causes it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subsequently the partitioning of its cytoplasm, chromosomes and other components into two daughter cells in a process called cell division.",
"title": ""
},
{
"paragraph_id": 1,
"text": "In eukaryotic cells (having a cell nucleus) including animal, plant, fungal, and protist cells, the cell cycle is divided into two main stages: interphase, and mitosis in the M phase that also includes cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, and replicates its DNA and some of its organelles. During the M phase, the replicated chromosomes, organelles, and cytoplasm separate into two new daughter cells. To ensure the proper replication of cellular components and division, there are control mechanisms known as cell cycle checkpoints after each of the key steps of the cycle that determine if the cell can progress to the next phase.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In cells without nuclei the prokaryotes, bacteria and archaea, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication. DNA replication occurs during the C period. The D period refers to the stage between the end of DNA replication and the splitting of the bacterial cell into two daughter cells.",
"title": ""
},
{
"paragraph_id": 3,
"text": "In single-celled organisms, a single cell-division cycle is how the organism replicates itself. In multicellular organisms such as plants and animals, a series of cell-division cycles is how the organism develops from a single-celled fertilized egg into a mature organism, and is also the process by which hair, skin, blood cells, and some internal organs are regenerated and healed (with possible exception of nerves; see nerve damage). After cell division, each of the daughter cells begin the interphase of a new cell cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of the cell division.",
"title": ""
},
{
"paragraph_id": 4,
"text": "The eukaryotic cell cycle consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as interphase) and M phase (mitosis and cytokinesis). M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's nucleus divides, and cytokinesis, in which the cell's cytoplasm divides forming two daughter cells. Activation of each phase is dependent on the proper progression and completion of the previous one. Cells that have temporarily or reversibly stopped dividing are said to have entered a state of quiescence called G0 phase.",
"title": "Phases"
},
{
"paragraph_id": 5,
"text": "After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.",
"title": "Phases"
},
{
"paragraph_id": 6,
"text": "G0 is a resting phase where the cell has left the cycle and has stopped dividing. The cell cycle starts with this phase. Non-proliferative (non-dividing) cells in multicellular eukaryotes generally enter the quiescent G0 state from G1 and may remain quiescent for long periods of time, possibly indefinitely (as is often the case for neurons). This is very common for cells that are fully differentiated. Some cells enter the G0 phase semi-permanently and are considered post-mitotic, e.g., some liver, kidney, and stomach cells. Many cells do not enter G0 and continue to divide throughout an organism's life, e.g., epithelial cells.",
"title": "Phases"
},
{
"paragraph_id": 7,
"text": "The word \"post-mitotic\" is sometimes used to refer to both quiescent and senescent cells. Cellular senescence occurs in response to DNA damage and external stress and usually constitutes an arrest in G1. Cellular senescence may make a cell's progeny nonviable; it is often a biochemical alternative to the self-destruction of such a damaged cell by apoptosis.",
"title": "Phases"
},
{
"paragraph_id": 8,
"text": "Interphase represent the phase between two successive M phases. Interphase is a series of changes that takes place in a newly formed cell and its nucleus before it becomes capable of division again. It is also called preparatory phase or intermitosis. Typically interphase lasts for at least 91% of the total time required for the cell cycle.",
"title": "Phases"
},
{
"paragraph_id": 9,
"text": "Interphase proceeds in three stages, G1, S, and G2, followed by the cycle of mitosis and cytokinesis. The cell's nuclear DNA contents are duplicated during S phase.",
"title": "Phases"
},
{
"paragraph_id": 10,
"text": "The first phase within interphase, from the end of the previous M phase until the beginning of DNA synthesis, is called G1 (G indicating gap). It is also called the growth phase. During this phase, the biosynthetic activities of the cell, which are considerably slowed down during M phase, resume at a high rate. The duration of G1 is highly variable, even among different cells of the same species. In this phase, the cell increases its supply of proteins, increases the number of organelles (such as mitochondria, ribosomes), and grows in size. In G1 phase, a cell has three options.",
"title": "Phases"
},
{
"paragraph_id": 11,
"text": "The deciding point is called check point (Restriction point). This check point is called the restriction point or START and is regulated by G1/S cyclins, which cause transition from G1 to S phase. Passage through the G1 check point commits the cell to division.",
"title": "Phases"
},
{
"paragraph_id": 12,
"text": "The ensuing S phase starts when DNA synthesis commences; when it is complete, all of the chromosomes have been replicated, i.e., each chromosome consists of two sister chromatids. Thus, during this phase, the amount of DNA in the cell has doubled, though the ploidy and number of chromosomes are unchanged. Rates of RNA transcription and protein synthesis are very low during this phase. An exception to this is histone production, most of which occurs during the S phase.",
"title": "Phases"
},
{
"paragraph_id": 13,
"text": "G2 phase occurs after DNA replication and is a period of protein synthesis and rapid cell growth to prepare the cell for mitosis. During this phase microtubules begin to reorganize to form a spindle (preprophase). Before proceeding to mitotic phase, cells must be checked at the G2 checkpoint for any DNA damage within the chromosomes. The G2 checkpoint is mainly regulated by the tumor protein p53. If the DNA is damaged, p53 will either repair the DNA or trigger the apoptosis of the cell. If p53 is dysfunctional or mutated, cells with damaged DNA may continue through the cell cycle, leading to the development of cancer.",
"title": "Phases"
},
{
"paragraph_id": 14,
"text": "The relatively brief M phase consists of nuclear division (karyokinesis). It is a relatively short period of the cell cycle. M phase is complex and highly regulated. The sequence of events is divided into phases, corresponding to the completion of one set of activities and the start of the next. These phases are sequentially known as:",
"title": "Phases"
},
{
"paragraph_id": 15,
"text": "Mitosis is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two nuclei. During the process of mitosis the pairs of chromosomes condense and attach to microtubules that pull the sister chromatids to opposite sides of the cell.",
"title": "Phases"
},
{
"paragraph_id": 16,
"text": "Mitosis occurs exclusively in eukaryotic cells, but occurs in different ways in different species. For example, animal cells undergo an \"open\" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae (yeast) undergo a \"closed\" mitosis, where chromosomes divide within an intact cell nucleus.",
"title": "Phases"
},
{
"paragraph_id": 17,
"text": "Mitosis is immediately followed by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell. This accounts for approximately 10% of the cell cycle.",
"title": "Phases"
},
{
"paragraph_id": 18,
"text": "Because cytokinesis usually occurs in conjunction with mitosis, \"mitosis\" is often used interchangeably with \"M phase\". However, there are many cells where mitosis and cytokinesis occur separately, forming single cells with multiple nuclei in a process called endoreplication. This occurs most notably among the fungi and slime molds, but is found in various groups. Even in animals, cytokinesis and mitosis may occur independently, for instance during certain stages of fruit fly embryonic development. Errors in mitosis can result in cell death through apoptosis or cause mutations that may lead to cancer.",
"title": "Phases"
},
{
"paragraph_id": 19,
"text": "Regulation of the cell cycle involves processes crucial to the survival of a cell, including the detection and repair of genetic damage as well as the prevention of uncontrolled cell division. The molecular events that control the cell cycle are ordered and directional; that is, each process occurs in a sequential fashion and it is impossible to \"reverse\" the cycle.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 20,
"text": "Two key classes of regulatory molecules, cyclins and cyclin-dependent kinases (CDKs), determine a cell's progress through the cell cycle. Leland H. Hartwell, R. Timothy Hunt, and Paul M. Nurse won the 2001 Nobel Prize in Physiology or Medicine for their discovery of these central molecules. Many of the genes encoding cyclins and CDKs are conserved among all eukaryotes, but in general, more complex organisms have more elaborate cell cycle control systems that incorporate more individual components. Many of the relevant genes were first identified by studying yeast, especially Saccharomyces cerevisiae; genetic nomenclature in yeast dubs many of these genes cdc (for \"cell division cycle\") followed by an identifying number, e.g. cdc25 or cdc20.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 21,
"text": "Cyclins form the regulatory subunits and CDKs the catalytic subunits of an activated heterodimer; cyclins have no catalytic activity and CDKs are inactive in the absence of a partner cyclin. When activated by a bound cyclin, CDKs perform a common biochemical reaction called phosphorylation that activates or inactivates target proteins to orchestrate coordinated entry into the next phase of the cell cycle. Different cyclin-CDK combinations determine the downstream proteins targeted. CDKs are constitutively expressed in cells whereas cyclins are synthesised at specific stages of the cell cycle, in response to various molecular signals.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 22,
"text": "Upon receiving a pro-mitotic extracellular signal, G1 cyclin-CDK complexes become active to prepare the cell for S phase, promoting the expression of transcription factors that in turn promote the expression of S cyclins and of enzymes required for DNA replication. The G1 cyclin-CDK complexes also promote the degradation of molecules that function as S phase inhibitors by targeting them for ubiquitination. Once a protein has been ubiquitinated, it is targeted for proteolytic degradation by the proteasome. However, results from a recent study of E2F transcriptional dynamics at the single-cell level argue that the role of G1 cyclin-CDK activities, in particular cyclin D-CDK4/6, is to tune the timing rather than the commitment of cell cycle entry.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 23,
"text": "Active S cyclin-CDK complexes phosphorylate proteins that make up the pre-replication complexes assembled during G1 phase on DNA replication origins. The phosphorylation serves two purposes: to activate each already-assembled pre-replication complex, and to prevent new complexes from forming. This ensures that every portion of the cell's genome will be replicated once and only once. The reason for prevention of gaps in replication is fairly clear, because daughter cells that are missing all or part of crucial genes will die. However, for reasons related to gene copy number effects, possession of extra copies of certain genes is also deleterious to the daughter cells.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 24,
"text": "Mitotic cyclin-CDK complexes, which are synthesized but inactivated during S and G2 phases, promote the initiation of mitosis by stimulating downstream proteins involved in chromosome condensation and mitotic spindle assembly. A critical complex activated during this process is a ubiquitin ligase known as the anaphase-promoting complex (APC), which promotes degradation of structural proteins associated with the chromosomal kinetochore. APC also targets the mitotic cyclins for degradation, ensuring that telophase and cytokinesis can proceed.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 25,
"text": "Cyclin D is the first cyclin produced in the cells that enter the cell cycle, in response to extracellular signals (e.g. growth factors). Cyclin D levels stay low in resting cells that are not proliferating. Additionally, CDK4/6 and CDK2 are also inactive because CDK4/6 are bound by INK4 family members (e.g., p16), limiting kinase activity. Meanwhile, CDK2 complexes are inhibited by the CIP/KIP proteins such as p21 and p27, When it is time for a cell to enter the cell cycle, which is triggered by a mitogenic stimuli, levels of cyclin D increase. In response to this trigger, cyclin D binds to existing CDK4/6, forming the active cyclin D-CDK4/6 complex. Cyclin D-CDK4/6 complexes in turn mono-phosphorylates the retinoblastoma susceptibility protein (Rb) to pRb. The un-phosphorylated Rb tumour suppressor functions in inducing cell cycle exit and maintaining G0 arrest (senescence).",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 26,
"text": "In the last few decades, a model has been widely accepted whereby pRB proteins are inactivated by cyclin D-Cdk4/6-mediated phosphorylation. Rb has 14+ potential phosphorylation sites. Cyclin D-Cdk 4/6 progressively phosphorylates Rb to hyperphosphorylated state, which triggers dissociation of pRB–E2F complexes, thereby inducing G1/S cell cycle gene expression and progression into S phase.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 27,
"text": "However, scientific observations from a recent study show that Rb is present in three types of isoforms: (1) un-phosphorylated Rb in G0 state; (2) mono-phosphorylated Rb, also referred to as \"hypo-phosphorylated' or 'partially' phosphorylated Rb in early G1 state; and (3) inactive hyper-phosphorylated Rb in late G1 state. In early G1 cells, mono-phosphorylated Rb exits as 14 different isoforms, one of each has distinct E2F binding affinity. Rb has been found to associate with hundreds of different proteins and the idea that different mono-phosphorylated Rb isoforms have different protein partners was very appealing. A recent report confirmed that mono-phosphorylation controls Rb's association with other proteins and generates functional distinct forms of Rb. All different mono-phosphorylated Rb isoforms inhibit E2F transcriptional program and are able to arrest cells in G1-phase. Importantly, different mono-phosphorylated forms of Rb have distinct transcriptional outputs that are extended beyond E2F regulation.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 28,
"text": "In general, the binding of pRb to E2F inhibits the E2F target gene expression of certain G1/S and S transition genes including E-type cyclins. The partial phosphorylation of Rb de-represses the Rb-mediated suppression of E2F target gene expression, begins the expression of cyclin E. The molecular mechanism that causes the cell switched to cyclin E activation is currently not known, but as cyclin E levels rise, the active cyclin E-CDK2 complex is formed, bringing Rb to be inactivated by hyper-phosphorylation. Hyperphosphorylated Rb is completely dissociated from E2F, enabling further expression of a wide range of E2F target genes are required for driving cells to proceed into S phase [1]. Recently, it has been identified that cyclin D-Cdk4/6 binds to a C-terminal alpha-helix region of Rb that is only distinguishable to cyclin D rather than other cyclins, cyclin E, A and B. This observation based on the structural analysis of Rb phosphorylation supports that Rb is phosphorylated in a different level through multiple Cyclin-Cdk complexes. This also makes feasible the current model of a simultaneous switch-like inactivation of all mono-phosphorylated Rb isoforms through one type of Rb hyper-phosphorylation mechanism. In addition, mutational analysis of the cyclin D- Cdk 4/6 specific Rb C-terminal helix shows that disruptions of cyclin D-Cdk 4/6 binding to Rb prevents Rb phosphorylation, arrests cells in G1, and bolsters Rb's functions in tumor suppressor. This cyclin-Cdk driven cell cycle transitional mechanism governs a cell committed to the cell cycle that allows cell proliferation. A cancerous cell growth often accompanies with deregulation of Cyclin D-Cdk 4/6 activity.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 29,
"text": "The hyperphosphorylated Rb dissociates from the E2F/DP1/Rb complex (which was bound to the E2F responsive genes, effectively \"blocking\" them from transcription), activating E2F. Activation of E2F results in transcription of various genes like cyclin E, cyclin A, DNA polymerase, thymidine kinase, etc. Cyclin E thus produced binds to CDK2, forming the cyclin E-CDK2 complex, which pushes the cell from G1 to S phase (G1/S, which initiates the G2/M transition). Cyclin B-cdk1 complex activation causes breakdown of nuclear envelope and initiation of prophase, and subsequently, its deactivation causes the cell to exit mitosis. A quantitative study of E2F transcriptional dynamics at the single-cell level by using engineered fluorescent reporter cells provided a quantitative framework for understanding the control logic of cell cycle entry, challenging the canonical textbook model. Genes that regulate the amplitude of E2F accumulation, such as Myc, determine the commitment in cell cycle and S phase entry. G1 cyclin-CDK activities are not the driver of cell cycle entry. Instead, they primarily tune the timing of E2F increase, thereby modulating the pace of cell cycle progression.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 30,
"text": "Two families of genes, the cip/kip (CDK interacting protein/Kinase inhibitory protein) family and the INK4a/ARF (Inhibitor of Kinase 4/Alternative Reading Frame) family, prevent the progression of the cell cycle. Because these genes are instrumental in prevention of tumor formation, they are known as tumor suppressors.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 31,
"text": "The cip/kip family includes the genes p21, p27 and p57. They halt the cell cycle in G1 phase by binding to and inactivating cyclin-CDK complexes. p21 is activated by p53 (which, in turn, is triggered by DNA damage e.g. due to radiation). p27 is activated by Transforming Growth Factor β (TGF β), a growth inhibitor.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 32,
"text": "The INK4a/ARF family includes p16, which binds to CDK4 and arrests the cell cycle in G1 phase, and p14 which prevents p53 degradation.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 33,
"text": "Synthetic inhibitors of Cdc25 could also be useful for the arrest of cell cycle and therefore be useful as antineoplastic and anticancer agents.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 34,
"text": "Many human cancers possess the hyper-activated Cdk 4/6 activities. Given the observations of cyclin D-Cdk 4/6 functions, inhibition of Cdk 4/6 should result in preventing a malignant tumor from proliferating. Consequently, scientists have tried to invent the synthetic Cdk4/6 inhibitor as Cdk4/6 has been characterized to be a therapeutic target for anti-tumor effectiveness. Three Cdk4/6 inhibitors - palbociclib, ribociclib, and abemaciclib - currently received FDA approval for clinical use to treat advanced-stage or metastatic, hormone-receptor-positive (HR-positive, HR+), HER2-negative (HER2-) breast cancer. For example, palbociclib is an orally active CDK4/6 inhibitor which has demonstrated improved outcomes for ER-positive/HER2-negative advanced breast cancer. The main side effect is neutropenia which can be managed by dose reduction.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 35,
"text": "Cdk4/6 targeted therapy will only treat cancer types where Rb is expressed. Cancer cells with loss of Rb have primary resistance to Cdk4/6 inhibitors.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 36,
"text": "Current evidence suggests that a semi-autonomous transcriptional network acts in concert with the CDK-cyclin machinery to regulate the cell cycle. Several gene expression studies in Saccharomyces cerevisiae have identified 800–1200 genes that change expression over the course of the cell cycle. They are transcribed at high levels at specific points in the cell cycle, and remain at lower levels throughout the rest of the cycle. While the set of identified genes differs between studies due to the computational methods and criteria used to identify them, each study indicates that a large portion of yeast genes are temporally regulated.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 37,
"text": "Many periodically expressed genes are driven by transcription factors that are also periodically expressed. One screen of single-gene knockouts identified 48 transcription factors (about 20% of all non-essential transcription factors) that show cell cycle progression defects. Genome-wide studies using high throughput technologies have identified the transcription factors that bind to the promoters of yeast genes, and correlating these findings with temporal expression patterns have allowed the identification of transcription factors that drive phase-specific gene expression. The expression profiles of these transcription factors are driven by the transcription factors that peak in the prior phase, and computational models have shown that a CDK-autonomous network of these transcription factors is sufficient to produce steady-state oscillations in gene expression).",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 38,
"text": "Experimental evidence also suggests that gene expression can oscillate with the period seen in dividing wild-type cells independently of the CDK machinery. Orlando et al. used microarrays to measure the expression of a set of 1,271 genes that they identified as periodic in both wild type cells and cells lacking all S-phase and mitotic cyclins (clb1,2,3,4,5,6). Of the 1,271 genes assayed, 882 continued to be expressed in the cyclin-deficient cells at the same time as in the wild type cells, despite the fact that the cyclin-deficient cells arrest at the border between G1 and S phase. However, 833 of the genes assayed changed behavior between the wild type and mutant cells, indicating that these genes are likely directly or indirectly regulated by the CDK-cyclin machinery. Some genes that continued to be expressed on time in the mutant cells were also expressed at different levels in the mutant and wild type cells. These findings suggest that while the transcriptional network may oscillate independently of the CDK-cyclin oscillator, they are coupled in a manner that requires both to ensure the proper timing of cell cycle events. Other work indicates that phosphorylation, a post-translational modification, of cell cycle transcription factors by Cdk1 may alter the localization or activity of the transcription factors in order to tightly control timing of target genes.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 39,
"text": "While oscillatory transcription plays a key role in the progression of the yeast cell cycle, the CDK-cyclin machinery operates independently in the early embryonic cell cycle. Before the midblastula transition, zygotic transcription does not occur and all needed proteins, such as the B-type cyclins, are translated from maternally loaded mRNA.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 40,
"text": "Analyses of synchronized cultures of Saccharomyces cerevisiae under conditions that prevent DNA replication initiation without delaying cell cycle progression showed that origin licensing decreases the expression of genes with origins near their 3' ends, revealing that downstream origins can regulate the expression of upstream genes. This confirms previous predictions from mathematical modeling of a global causal coordination between DNA replication origin activity and mRNA expression, and shows that mathematical modeling of DNA microarray data can be used to correctly predict previously unknown biological modes of regulation.",
"title": "Regulation of eukaryotic cell cycle"
},
{
"paragraph_id": 41,
"text": "Cell cycle checkpoints are used by the cell to monitor and regulate the progress of the cell cycle. Checkpoints prevent cell cycle progression at specific points, allowing verification of necessary phase processes and repair of DNA damage. The cell cannot proceed to the next phase until checkpoint requirements have been met. Checkpoints typically consist of a network of regulatory proteins that monitor and dictate the progression of the cell through the different stages of the cell cycle.",
"title": "Checkpoints"
},
{
"paragraph_id": 42,
"text": "It is estimated that in normal human cells about 1% of single-strand DNA damages are converted to about 50 endogenous DNA double-strand breaks per cell per cell cycle. Although such double-strand breaks are usually repaired with high fidelity, errors in their repair are considered to contribute significantly to the rate of cancer in humans.",
"title": "Checkpoints"
},
{
"paragraph_id": 43,
"text": "There are several checkpoints to ensure that damaged or incomplete DNA is not passed on to daughter cells. Three main checkpoints exist: the G1/S checkpoint, the G2/M checkpoint and the metaphase (mitotic) checkpoint. Another checkpoint is the Go checkpoint, in which the cells are checked for maturity. If the cells fail to pass this checkpoint by not being ready yet, they will be discarded from dividing.",
"title": "Checkpoints"
},
{
"paragraph_id": 44,
"text": "G1/S transition is a rate-limiting step in the cell cycle and is also known as restriction point. This is where the cell checks whether it has enough raw materials to fully replicate its DNA (nucleotide bases, DNA synthase, chromatin, etc.). An unhealthy or malnourished cell will get stuck at this checkpoint.",
"title": "Checkpoints"
},
{
"paragraph_id": 45,
"text": "The G2/M checkpoint is where the cell ensures that it has enough cytoplasm and phospholipids for two daughter cells. But sometimes more importantly, it checks to see if it is the right time to replicate. There are some situations where many cells need to all replicate simultaneously (for example, a growing embryo should have a symmetric cell distribution until it reaches the mid-blastula transition). This is done by controlling the G2/M checkpoint.",
"title": "Checkpoints"
},
{
"paragraph_id": 46,
"text": "The metaphase checkpoint is a fairly minor checkpoint, in that once a cell is in metaphase, it has committed to undergoing mitosis. However that's not to say it isn't important. In this checkpoint, the cell checks to ensure that the spindle has formed and that all of the chromosomes are aligned at the spindle equator before anaphase begins.",
"title": "Checkpoints"
},
{
"paragraph_id": 47,
"text": "While these are the three \"main\" checkpoints, not all cells have to pass through each of these checkpoints in this order to replicate. Many types of cancer are caused by mutations that allow the cells to speed through the various checkpoints or even skip them altogether. Going from S to M to S phase almost consecutively. Because these cells have lost their checkpoints, any DNA mutations that may have occurred are disregarded and passed on to the daughter cells. This is one reason why cancer cells have a tendency to exponentially acquire mutations. Aside from cancer cells, many fully differentiated cell types no longer replicate so they leave the cell cycle and stay in G0 until their death. Thus removing the need for cellular checkpoints. An alternative model of the cell cycle response to DNA damage has also been proposed, known as the postreplication checkpoint.",
"title": "Checkpoints"
},
{
"paragraph_id": 48,
"text": "Checkpoint regulation plays an important role in an organism's development. In sexual reproduction, when egg fertilization occurs, when the sperm binds to the egg, it releases signalling factors that notify the egg that it has been fertilized. Among other things, this induces the now fertilized oocyte to return from its previously dormant, G0, state back into the cell cycle and on to mitotic replication and division.",
"title": "Checkpoints"
},
{
"paragraph_id": 49,
"text": "p53 plays an important role in triggering the control mechanisms at both G1/S and G2/M checkpoints. In addition to p53, checkpoint regulators are being heavily researched for their roles in cancer growth and proliferation.",
"title": "Checkpoints"
},
{
"paragraph_id": 50,
"text": "Pioneering work by Atsushi Miyawaki and coworkers developed the fluorescent ubiquitination-based cell cycle indicator (FUCCI), which enables fluorescence imaging of the cell cycle. Originally, a green fluorescent protein, mAG, was fused to hGem(1/110) and an orange fluorescent protein (mKO2) was fused to hCdt1(30/120). Note, these fusions are fragments that contain a nuclear localization signal and ubiquitination sites for degradation, but are not functional proteins. The green fluorescent protein is made during the S, G2, or M phase and degraded during the G0 or G1 phase, while the orange fluorescent protein is made during the G0 or G1 phase and destroyed during the S, G2, or M phase. A far-red and near-infrared FUCCI was developed using a cyanobacteria-derived fluorescent protein (smURFP) and a bacteriophytochrome-derived fluorescent protein (movie found at this link).",
"title": "Fluorescence imaging of the cell cycle"
},
{
"paragraph_id": 51,
"text": "A disregulation of the cell cycle components may lead to tumor formation. As mentioned above, when some genes like the cell cycle inhibitors, RB, p53 etc. mutate, they may cause the cell to multiply uncontrollably, forming a tumor. Although the duration of cell cycle in tumor cells is equal to or longer than that of normal cell cycle, the proportion of cells that are in active cell division (versus quiescent cells in G0 phase) in tumors is much higher than that in normal tissue. Thus there is a net increase in cell number as the number of cells that die by apoptosis or senescence remains the same.",
"title": "Role in tumor formation"
},
{
"paragraph_id": 52,
"text": "The cells which are actively undergoing cell cycle are targeted in cancer therapy as the DNA is relatively exposed during cell division and hence susceptible to damage by drugs or radiation. This fact is made use of in cancer treatment; by a process known as debulking, a significant mass of the tumor is removed which pushes a significant number of the remaining tumor cells from G0 to G1 phase (due to increased availability of nutrients, oxygen, growth factors etc.). Radiation or chemotherapy following the debulking procedure kills these cells which have newly entered the cell cycle.",
"title": "Role in tumor formation"
},
{
"paragraph_id": 53,
"text": "The fastest cycling mammalian cells in culture, crypt cells in the intestinal epithelium, have a cycle time as short as 9 to 10 hours. Stem cells in resting mouse skin may have a cycle time of more than 200 hours. Most of this difference is due to the varying length of G1, the most variable phase of the cycle. M and S do not vary much.",
"title": "Role in tumor formation"
},
{
"paragraph_id": 54,
"text": "In general, cells are most radiosensitive in late M and G2 phases and most resistant in late S phase. For cells with a longer cell cycle time and a significantly long G1 phase, there is a second peak of resistance late in G1. The pattern of resistance and sensitivity correlates with the level of sulfhydryl compounds in the cell. Sulfhydryls are natural substances that protect cells from radiation damage and tend to be at their highest levels in S and at their lowest near mitosis.",
"title": "Role in tumor formation"
},
{
"paragraph_id": 55,
"text": "Homologous recombination (HR) is an accurate process for repairing DNA double-strand breaks. HR is nearly absent in G1 phase, is most active in S phase, and declines in G2/M. Non-homologous end joining, a less accurate and more mutagenic process for repairing double strand breaks, is active throughout the cell cycle.",
"title": "Role in tumor formation"
},
{
"paragraph_id": 56,
"text": "The cell cycle must duplicate all cellular constituents and equally partition them into two daughter cells. Many constituents, such as proteins and ribosomes, are produced continuously throughout the cell cycle (except during M-phase). However, the chromosomes and other associated elements like MTOCs, are duplicated just once during the cell cycle. A central component of the cell cycle is its ability to coordinate the continuous and periodic duplications of different cellular elements, which evolved with the formation of the genome.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 57,
"text": "The pre-cellular environment contained functional and self-replicating RNAs. All RNA concentrations depended on the concentrations of other RNAs that might be helping or hindering the gathering of resources. In this environment, growth was simply the continuous production of RNAs. These pre-cellular structures would have had to contend with parasitic RNAs, issues of inheritance, and copy-number control of specific RNAs.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 58,
"text": "Partitioning “genomic” RNA from “functional” RNA helped solve these problems. The fusion of multiple RNAs into a genome gave a template from which functional RNAs were cleaved. Now, parasitic RNAs would have to incorporate themselves into the genome, a much greater barrier, in order to survive. Controlling the copy number of genomic RNA also allowed RNA concentration to be determined through synthesis rates and RNA half-lives, instead of competition. Separating the duplication of genomic RNAs from the generation of functional RNAs allowed for much greater duplication fidelity of genomic RNAs without compromising the production of functional RNAs. Finally, the replacement of genomic RNA with DNA, which is a more stable molecule, allowed for larger genomes. The transition from self-catalysis enzyme synthesis to genome-directed enzyme synthesis was a critical step in cell evolution, and had lasting implications on the cell cycle, which must regulate functional synthesis and genomic duplication in very different ways.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 59,
"text": "Cell-cycle progression is controlled by the oscillating concentrations of different cyclins and the resulting molecular interactions from the various cyclin-dependent kinases (CDKs). In yeast, just one CDK (Cdc28 in S. cerevisiae and Cdc2 in S. pombe) controls the cell cycle. However, in animals, whole families of CDKs have evolved. Cdk1 controls entry to mitosis and Cdk2, Cdk4, and Cdk6 regulate entry into S phase. Despite the evolution of the CDK family in animals, these proteins have related or redundant functions. For example, cdk2 cdk4 cdk6 triple knockout mice cells can still progress through the basic cell cycle. cdk1 knockouts are lethal, which suggests an ancestral CDK1-type kinase ultimately controlling the cell cycle.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 60,
"text": "Arabidopsis thaliana has a Cdk1 homolog called CDKA;1, however cdka;1 A. thaliana mutants are still viable, running counter to the opisthokont pattern of CDK1-type kinases as essential regulators controlling the cell cycle. Plants also have a unique group of B-type CDKs, whose functions may range from development-specific functions to major players in mitotic regulation.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 61,
"text": "The G1/S checkpoint is the point at which the cell commits to division through the cell cycle. Complex regulatory networks lead to the G1/S transition decision. Across opisthokonts, there are both highly diverged protein sequences as well as strikingly similar network topologies.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 62,
"text": "Entry into S-phase in both yeast and animals is controlled by the levels of two opposing regulators. The networks regulating these transcription factors are double-negative feedback loops and positive feedback loops in both yeast and animals. Additional regulation of the regulatory network for the G1/S checkpoint in yeast and animals includes the phosphorylation/de-phosphorylation of CDK-cyclin complexes. The sum of these regulatory networks creates a hysteretic and bistable scheme, despite the specific proteins being highly diverged. For yeast, Whi5 must be suppressed by Cln3 phosphorylation for SBF to be expressed, while in animals Rb must be suppressed by the Cdk4/6-cyclin D complex for E2F to be expressed. Both Rb and Whi5 inhibit transcript through the recruitment of histone deacetylase proteins to promoters. Both proteins additionally have multiple CDK phosphorylation sites through which they are inhibited. However, these proteins share no sequence similarity.",
"title": "Cell cycle evolution"
},
{
"paragraph_id": 63,
"text": "Studies in A. thaliana extend our knowledge of the G1/S transition across eukaryotes as a whole. Plants also share a number of conserved network features with opisthokonts, and many plant regulators have direct animal homologs. For example, plants also need to suppress Rb for E2F translation in the network. These conserved elements of the plant and animal cell cycles may be ancestral in eukaryotes. While yeast share a conserved network topology with plants and animals, the highly diverged nature of yeast regulators suggests possible rapid evolution along the yeast lineage.",
"title": "Cell cycle evolution"
}
] | The cell cycle, or cell-division cycle, is the series of events that take place in a cell that causes it to divide into two daughter cells. These events include the duplication of its DNA and some of its organelles, and subsequently the partitioning of its cytoplasm, chromosomes and other components into two daughter cells in a process called cell division. In eukaryotic cells including animal, plant, fungal, and protist cells, the cell cycle is divided into two main stages: interphase, and mitosis in the M phase that also includes cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, and replicates its DNA and some of its organelles. During the M phase, the replicated chromosomes, organelles, and cytoplasm separate into two new daughter cells. To ensure the proper replication of cellular components and division, there are control mechanisms known as cell cycle checkpoints after each of the key steps of the cycle that determine if the cell can progress to the next phase. In cells without nuclei the prokaryotes, bacteria and archaea, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication. DNA replication occurs during the C period. The D period refers to the stage between the end of DNA replication and the splitting of the bacterial cell into two daughter cells. In single-celled organisms, a single cell-division cycle is how the organism replicates itself. In multicellular organisms such as plants and animals, a series of cell-division cycles is how the organism develops from a single-celled fertilized egg into a mature organism, and is also the process by which hair, skin, blood cells, and some internal organs are regenerated and healed. After cell division, each of the daughter cells begin the interphase of a new cell cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of the cell division. | 2001-11-27T17:59:39Z | 2023-12-19T02:51:21Z | [
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7,253 | Cartesian | Cartesian means of or relating to the French philosopher René Descartes—from his Latinized name Cartesius. It may refer to: | [
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] | Cartesian means of or relating to the French philosopher René Descartes—from his Latinized name Cartesius. It may refer to: | 2023-06-01T10:25:25Z | [
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7,255 | Connection (dance) | In partner dancing, connection is physical, non-verbal communication between dancers to facilitate synchronized or coordinated dance movements. Some forms of connection involve "lead/follow" in which one dancer (the "lead") directs the movements of the other dancer (the "follower") by means of non-verbal directions conveyed through a physical connection between the dancers. In other forms, connection involves multiple dancers (more than two) without a distinct leader or follower (e.g. contact improvisation). Connection refers to a host of different techniques in many types of partner dancing, especially (but not exclusively) those that feature significant physical contact between the dancers, including the Argentine Tango, Lindy Hop, Balboa, East Coast Swing, West Coast Swing, Salsa, and other ballroom dances.
Other forms of communication, such as visual cues or spoken cues, sometimes aid in connecting with one's partner, but are often used in specific circumstances (e.g., practicing figures, or figures which are purposely danced without physical connection). Connection can be used to transmit power and energy as well as information and signals; some dance forms (and some dancers) primarily emphasize power or signaling, but most are probably a mixture of both. Philosopher of dance Ilya Vidrin argues that connection between partners involves norm-based communication that include “a physical exchange of information on the basis of ethically-bound conditions” (proximity, orientation, and points of contact) which constrain agency and predictability.
Following and leading in a partner dance is accomplished by maintaining a physical connection called the frame that allows the leader to transmit body movement to the follower, and for the follower to suggest ideas to the leader. A frame is a stable structural combination of both bodies maintained through the dancers' arms and/or legs.
Connection occurs in both open and closed dance positions (also called "open frame" and "closed frame").
In closed position with body contact, connection is achieved by maintaining the frame. The follower moves to match the leader, maintaining the pressure between the two bodies as well as the position.
When creating frame, tension is the primary means of establishing communication. Changes in tension are made to create rhythmic variations in moves and movements, and are communicated through points of contact. In an open position or a closed position without body contact, the hands and arms alone provide the connection, which may be one of three forms: tension, compression or neutral.
In swing dances, tension and compression may be maintained for a significant period of time. In other dances, such as Latin, tension and compression may be used as indications of upcoming movement. However, in both styles, tension and compression do not signal immediate movement: the follow must be careful not to move prior to actual movement by the lead. Until then, the dancers must match pressures without moving their hands. In some styles of Lindy Hop, the tension may become quite high without initiating movement.
The general rule for open connections is that moves of the leader's hands back, forth, left or right are originated through moves of the entire body. Accordingly, for the follower, a move of the connected hand is immediately transformed into the corresponding move of the body. Tensing the muscles and locking the arm achieves this effect but is neither comfortable nor correct. Such tension eliminates the subtler communication in the connection, and eliminates free movement up and down, such as is required to initiate many turns.
Instead of just tensing the arms, connection is achieved by engaging the shoulder, upper body and torso muscles. Movement originates in the body's core. A leader leads by moving himself and maintaining frame and connection. Different forms of dance and different movements within each dance may call for differences in the connection. In some dances the separation distance between the partners remains pretty constant. In others e.g. Modern Jive moving closer together and further apart are fundamental to the dance, requiring flexion and extension of the arms, alternating compression and tension.
The connection between two partners has a different feel in every dance and with every partner. Good social dancers adapt to the conventions of the dance and the responses of their partners. | [
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"text": "In swing dances, tension and compression may be maintained for a significant period of time. In other dances, such as Latin, tension and compression may be used as indications of upcoming movement. However, in both styles, tension and compression do not signal immediate movement: the follow must be careful not to move prior to actual movement by the lead. Until then, the dancers must match pressures without moving their hands. In some styles of Lindy Hop, the tension may become quite high without initiating movement.",
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"text": "The general rule for open connections is that moves of the leader's hands back, forth, left or right are originated through moves of the entire body. Accordingly, for the follower, a move of the connected hand is immediately transformed into the corresponding move of the body. Tensing the muscles and locking the arm achieves this effect but is neither comfortable nor correct. Such tension eliminates the subtler communication in the connection, and eliminates free movement up and down, such as is required to initiate many turns.",
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"text": "Instead of just tensing the arms, connection is achieved by engaging the shoulder, upper body and torso muscles. Movement originates in the body's core. A leader leads by moving himself and maintaining frame and connection. Different forms of dance and different movements within each dance may call for differences in the connection. In some dances the separation distance between the partners remains pretty constant. In others e.g. Modern Jive moving closer together and further apart are fundamental to the dance, requiring flexion and extension of the arms, alternating compression and tension.",
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] | In partner dancing, connection is physical, non-verbal communication between dancers to facilitate synchronized or coordinated dance movements. Some forms of connection involve "lead/follow" in which one dancer directs the movements of the other dancer by means of non-verbal directions conveyed through a physical connection between the dancers. In other forms, connection involves multiple dancers without a distinct leader or follower. Connection refers to a host of different techniques in many types of partner dancing, especially those that feature significant physical contact between the dancers, including the Argentine Tango, Lindy Hop, Balboa, East Coast Swing, West Coast Swing, Salsa, and other ballroom dances. Other forms of communication, such as visual cues or spoken cues, sometimes aid in connecting with one's partner, but are often used in specific circumstances. Connection can be used to transmit power and energy as well as information and signals; some dance forms primarily emphasize power or signaling, but most are probably a mixture of both. Philosopher of dance Ilya Vidrin argues that connection between partners involves norm-based communication that include “a physical exchange of information on the basis of ethically-bound conditions” which constrain agency and predictability. | 2001-11-28T08:04:20Z | 2023-12-06T17:13:06Z | [
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7,257 | Caste | A caste is a fixed social group into which an individual is born within a particular system of social stratification: a caste system. Within such a system, individuals are expected to: marry exclusively within the same caste (endogamy), follow lifestyles often linked to a particular occupation, hold a ritual status observed within a hierarchy, and interact with others based on cultural notions of exclusion, with certain castes considered as either more pure or more polluted than others. Its paradigmatic ethnographic example is the division of India's Hindu society into rigid social groups. Its roots lie in South Asia's ancient history and it still exists. However, the economic significance of the caste system in India has been declining as a result of urbanisation and affirmative action programs. A subject of much scholarship by sociologists and anthropologists, the Hindu caste system is sometimes used as an analogical basis for the study of caste-like social divisions existing outside Hinduism and India. The term "caste" is also applied to morphological groupings in eusocial insects such as ants, bees, and termites.
The English word caste (/kɑːst, kæst/) derives from the Spanish and Portuguese casta, which, according to the John Minsheu's Spanish dictionary (1569), means "race, lineage, tribe or breed". When the Spanish colonised the New World, they used the word to mean a 'clan or lineage'. It was, however, the Portuguese who first employed casta in the primary modern sense of the English word 'caste' when they applied it to the thousands of endogamous, hereditary Indian social groups they encountered upon their arrival in India in 1498. The use of the spelling caste, with this latter meaning, is first attested in English in 1613. In the Latin American context, the term caste is sometimes used to describe the casta system of racial classification, based on whether a person was of pure European, Indigenous or African descent, or some mix thereof, with the different groups being placed in a racial hierarchy; however, despite the etymological connection between the Latin American casta system and South Asian caste systems (the former giving its name to the latter), it is controversial to what extent the two phenomena are really comparable.
Modern India's caste system is based on the artificial modern superimposition of an old four-fold theoretical classification called the Varna on the social groupings called the Jāti. Varna conceptualised a society as consisting of four types of varnas, or categories: Brahmin, Kshatriya, Vaishya and Shudra, according to the nature of the work of its members. Varna was not an inherited category and the occupation determined the varna. However, a person's Jati is determined at birth and makes them take up that Jati's occupation; members could and did change their occupation based on personal strengths as well as economic, social and political factors. A 2016 study based on the DNA analysis of unrelated Indians determined that endogamous Jatis originated during the Gupta Empire.
From 1901 onwards, for the purposes of the Decennial Census, the British colonial authorities arbitrarily and incorrectly forced all Jātis into the four Varna categories as described in ancient texts. Herbert Hope Risley, the Census Commissioner, noted that "The principle suggested as a basis was that of classification by social precedence as recognized by native public opinion at the present day, and manifesting itself in the facts that particular castes are supposed to be the modern representatives of one or other of the castes of the theoretical Indian system."
Varna, as mentioned in ancient Hindu texts, describes society as divided into four categories: Brahmins (scholars and yajna priests), Kshatriyas (rulers and warriors), Vaishyas (farmers, merchants and artisans) and Shudras (workmen/service providers). The texts do not mention any hierarchy or a separate, untouchable category in Varna classifications. Scholars believe that the Varnas system was never truly operational in society and there is no evidence of it ever being a reality in Indian history. The practical division of the society had always been in terms of Jatis (birth groups), which are not based on any specific religious principle but could vary from ethnic origins to occupations to geographic areas. The Jātis have been endogamous social groups without any fixed hierarchy but subject to vague notions of rank articulated over time based on lifestyle and social, political, or economic status. Many of India's major empires and dynasties like the Mauryas, Shalivahanas, Chalukyas, Kakatiyas among many others, were founded by people who would have been classified as Shudras, under the Varnas system, as interpreted by the British rulers. It is well established that by the 9th century, kings from all the four Varnas, including Brahmins and Vaishyas, had occupied the highest seat in the monarchical system in Hindu India, contrary to the Varna theory. In many instances, as in Bengal, historically the kings and rulers had been called upon, when required, to mediate on the ranks of Jātis, which might number in thousands all over the subcontinent and vary by region. In practice, the jātis may or may not fit into the Varna classes and many prominent Jatis, for example the Jats and Yadavs, straddled two Varnas i.e. Kshatriyas and Vaishyas, and the Varna status of Jātis itself was subject to articulation over time.
Starting with the 1901 Census of India led by colonial administrator Herbert Hope Risley, all the jātis were grouped under the theoretical varnas categories. According to political scientist Lloyd Rudolph, Risley believed that varna, however ancient, could be applied to all the modern castes found in India, and "[he] meant to identify and place several hundred million Indians within it." The terms varna (conceptual classification based on occupation) and jāti (groups) are two distinct concepts: while varna is a theoretical four-part division, jāti (community) refers to the thousands of actual endogamous social groups prevalent across the subcontinent. The classical authors scarcely speak of anything other than the varnas, as it provided a convenient shorthand; but a problem arises when colonial Indologists sometimes confuse the two.
Upon independence from Britain, the Indian Constitution listed 1,108 Jatis across the country as Scheduled Castes in 1950, for positive discrimination. This constitution would also ban discrimination of the basis of the caste, though its practice in India remained intact. The Untouchable communities are sometimes called Scheduled Castes, Dalit or Harijan in contemporary literature. In 2001, Dalits were 16.2% of India's population. Most of the 15 million bonded child workers are from the lowest castes. Independent India has witnessed caste-related violence. In 2005, government recorded approximately 110,000 cases of reported violent acts, including rape and murder, against Dalits. For 2012, the government recorded 651 murders, 3,855 injuries, 1,576 rapes, 490 kidnappings, and 214 cases of arson.
The socio-economic limitations of the caste system are reduced due to urbanisation and affirmative action. Nevertheless, the caste system still exists in endogamy and patrimony, and thrives in the politics of democracy, where caste provides ready made constituencies to politicians. The globalisation and economic opportunities from foreign businesses has influenced the growth of India's middle-class population. Some members of the Chhattisgarh Potter Caste Community (CPCC) are middle-class urban professionals and no longer potters unlike the remaining majority of traditional rural potter members. There is persistence of caste in Indian politics. Caste associations have evolved into caste-based political parties. Political parties and the state perceive caste as an important factor for mobilisation of people and policy development.
Studies by Bhatt and Beteille have shown changes in status, openness, mobility in the social aspects of Indian society. As a result of modern socio-economic changes in the country, India is experiencing significant changes in the dynamics and the economics of its social sphere. While arranged marriages are still the most common practice in India, the internet has provided a network for younger Indians to take control of their relationships through the use of dating apps. This remains isolated to informal terms, as marriage is not often achieved through the use of these apps. Hypergamy is still a common practice in India and Hindu culture. Men are expected to marry within their caste, or one below, with no social repercussions. If a woman marries into a higher caste, then her children will take the status of their father. If she marries down, her family is reduced to the social status of their son in law. In this case, the women are bearers of the egalitarian principle of the marriage. There would be no benefit in marrying a higher caste if the terms of the marriage did not imply equality. However, men are systematically shielded from the negative implications of the agreement.
Geographical factors also determine adherence to the caste system. Many Northern villages are more likely to participate in exogamous marriage, due to a lack of eligible suitors within the same caste. Women in North India have been found to be less likely to leave or divorce their husbands since they are of a relatively lower caste system, and have higher restrictions on their freedoms. On the other hand, Pahari women, of the northern mountains, have much more freedom to leave their husbands without stigma. This often leads to better husbandry as his actions are not protected by social expectations.
Chiefly among the factors influencing the rise of exogamy is the rapid urbanisation in India experienced over the last century. It is well known that urban centers tend to be less reliant on agriculture and are more progressive as a whole. As India's cities boomed in population, the job market grew to keep pace. Prosperity and stability were now more easily attained by an individual, and the anxiety to marry quickly and effectively was reduced. Thus, younger, more progressive generations of urban Indians are less likely than ever to participate in the antiquated system of arranged endogamy.
India has also implemented a form of Affirmative Action, locally known as "reservation groups". Quota system jobs, as well as placements in publicly funded colleges, hold spots for the 8% of India's minority, and underprivileged groups. As a result, in states such as Tamil Nadu or those in the north-east, where underprivileged populations predominate, over 80% of government jobs are set aside in quotas. In education, colleges lower the marks necessary for the Dalits to enter.
The Nepali caste system resembles in some respects the Indian jāti system, with numerous jāti divisions with a varna system superimposed. Inscriptions attest the beginnings of a caste system during the Licchavi period. Jayasthiti Malla (1382–1395) categorised Newars into 64 castes (Gellner 2001). A similar exercise was made during the reign of Mahindra Malla (1506–1575). The Hindu social code was later set up in the Gorkha Kingdom by Ram Shah (1603–1636).
McKim Marriott claims a social stratification that is hierarchical, closed, endogamous and hereditary is widely prevalent, particularly in western parts of Pakistan. Frederik Barth in his review of this system of social stratification in Pakistan suggested that these are castes.
The caste system in Sri Lanka is a division of society into strata, influenced by the textbook jāti system found in India. Ancient Sri Lankan texts such as the Pujavaliya, Sadharmaratnavaliya and Yogaratnakaraya and inscriptional evidence show that the above hierarchy prevailed throughout the feudal period. The repetition of the same caste hierarchy even as recently as the 18th century, in the Kandyan-period Kadayimpoth – Boundary books as well indicates the continuation of the tradition right up to the end of Sri Lanka's monarchy.
Balinese caste structure has been described as being based either on three categories—the noble triwangsa (thrice born), the middle class of dwijāti (twice born), and the lower class of ekajāti (once born)--or on four castes
The Brahmana caste was further subdivided by Dutch ethnographers into two: Siwa and Buda. The Siwa caste was subdivided into five: Kemenuh, Keniten, Mas, Manuba and Petapan. This classification was to accommodate the observed marriage between higher-caste Brahmana men with lower-caste women. The other castes were similarly further sub-classified by 19th-century and early-20th-century ethnographers based on numerous criteria ranging from profession, endogamy or exogamy or polygamy, and a host of other factors in a manner similar to castas in Spanish colonies such as Mexico, and caste system studies in British colonies such as India.
In the Philippines, pre-colonial societies do not have a single social structure. The class structures can be roughly categorised into four types:
During the period of the Yuan dynasty, ruler Kublai Khan enforced a Four Class System, which was a legal caste system. The order of four classes of people in descending order were:
Today, the Hukou system is argued by various Western sources to be the current caste system of China.
There is significant controversy over the social classes of Tibet, especially with regards to the serfdom in Tibet controversy.
Heidi Fjeld has put forth the argument that pre-1950s Tibetan society was functionally a caste system, in contrast to previous scholars who defined the Tibetan social class system as similar to European feudal serfdom, as well as non-scholarly western accounts which seek to romanticise a supposedly 'egalitarian' ancient Tibetan society.
In Japan's history, social strata based on inherited position rather than personal merit, were rigid and highly formalised in a system called mibunsei (身分制). At the top were the Emperor and Court nobles (kuge), together with the Shōgun and daimyō. Below them, the population was divided into four classes: samurai, peasants, craftsmen and merchants. Only samurai were allowed to bear arms. A samurai had a right to kill any peasants, craftsman or merchant who he felt were disrespectful. Merchants were the lowest caste because they did not produce any products. The castes were further sub-divided; for example, peasants were labelled as furiuri, tanagari, mizunomi-byakusho among others. As in Europe, the castes and sub-classes were of the same race, religion and culture.
Howell, in his review of Japanese society notes that if a Western power had colonised Japan in the 19th century, they would have discovered and imposed a rigid four-caste hierarchy in Japan.
De Vos and Wagatsuma observe that Japanese society had a systematic and extensive caste system. They discuss how alleged caste impurity and alleged racial inferiority, concepts often assumed to be different, are superficial terms, and are due to identical inner psychological processes, which expressed themselves in Japan and elsewhere.
Endogamy was common because marriage across caste lines was socially unacceptable.
Japan had its own untouchable caste, shunned and ostracised, historically referred to by the insulting term eta, now called burakumin. While modern law has officially abolished the class hierarchy, there are reports of discrimination against the buraku or burakumin underclasses. The burakumin are regarded as "ostracised". The burakumin are one of the main minority groups in Japan, along with the Ainu of Hokkaidō and those of Korean or Chinese descent.
The baekjeong (백정) were an "untouchable" outcaste of Korea. The meaning today is that of butcher. It originates in the Khitan invasion of Korea in the 11th century. The defeated Khitans who surrendered were settled in isolated communities throughout Goryeo to forestall rebellion. They were valued for their skills in hunting, herding, butchering, and making of leather, common skill sets among nomads. Over time, their ethnic origin was forgotten, and they formed the bottom layer of Korean society.
In 1392, with the foundation of the Confucian Joseon dynasty, Korea systemised its own native class system. At the top were the two official classes, the Yangban, which literally means "two classes". It was composed of scholars (munban) and warriors (muban). Scholars had a significant social advantage over the warriors. Below were the jung-in (중인-中人: literally "middle people"). This was a small class of specialised professions such as medicine, accounting, translators, regional bureaucrats, etc. Below that were the sangmin (상민-常民: literally 'commoner'), farmers working their own fields. Korea also had a serf population known as the nobi. The nobi population could fluctuate up to about one third of the population, but on average the nobi made up about 10% of the total population. In 1801, the vast majority of government nobi were emancipated, and by 1858 the nobi population stood at about 1.5% of the total population of Korea. The hereditary nobi system was officially abolished around 1886–87 and the rest of the nobi system was abolished with the Gabo Reform of 1894, but traces remained until 1930.
The opening of Korea to foreign Christian missionary activity in the late 19th century saw some improvement in the status of the baekjeong. However, everyone was not equal under the Christian congregation, and even so protests erupted when missionaries tried to integrate baekjeong into worship, with non-baekjeong finding this attempt insensitive to traditional notions of hierarchical advantage. Around the same time, the baekjeong began to resist open social discrimination. They focused on social and economic injustices affecting them, hoping to create an egalitarian Korean society. Their efforts included attacking social discrimination by upper class, authorities, and "commoners", and the use of degrading language against children in public schools.
With the Gabo reform of 1896, the class system of Korea was officially abolished. Following the collapse of the Gabo government, the new cabinet, which became the Gwangmu government after the establishment of the Korean Empire, introduced systematic measures for abolishing the traditional class system. One measure was the new household registration system, reflecting the goals of formal social equality, which was implemented by the loyalists' cabinet. Whereas the old registration system signified household members according to their hierarchical social status, the new system called for an occupation.
While most Koreans by then had surnames and even bongwan, although still substantial number of cheonmin, mostly consisted of serfs and slaves, and untouchables did not. According to the new system, they were then required to fill in the blanks for surname in order to be registered as constituting separate households. Instead of creating their own family name, some cheonmins appropriated their masters' surname, while others simply took the most common surname and its bongwan in the local area. Along with this example, activists within and outside the Korean government had based their visions of a new relationship between the government and people through the concept of citizenship, employing the term inmin ("people") and later, kungmin ("citizen").
The Committee for Human Rights in North Korea reported that "Every North Korean citizen is assigned a heredity-based class and socio-political rank over which the individual exercises no control but which determines all aspects of his or her life." Called Songbun, Barbara Demick describes this "class structure" as an updating of the hereditary "caste system", a combination of Confucianism and Stalinism. It originated in 1946 and was entrenched by the 1960s, and consisted of 53 categories ranging across three classes: loyal, wavering, and impure. The privileged "loyal" class included members of the Korean Workers' Party and Korean People's Army officers' corps, the wavering class included peasants, and the impure class included collaborators with Imperial Japan and landowners. She claims that a bad family background is called "tainted blood", and that by law this "tainted blood" lasts three generations.
There are three hereditary groups, often called castes, in Yazidism. Membership in the Yazidi society and a caste is conferred by birth. Pîrs and Sheikhs are the priestly castes, which are represented by many sacred lineages (Kurdish: Ocax). Sheikhs are in charge of both religious and administrative functions and are divided into three endogamous houses, Şemsanî, Adanî and Qatanî who are in turn divided into lineages. The Pîrs are in charge of purely religious functions and traditionally consist of 40 lineages or clans, but approximately 90 appellations of Pîr lineages have been found, which may have been a result of new sub-lineages arising and number of clans increasing over time due to division as Yazidis settled in different places and countries. Division could occur in one family, if there were a few brothers in one clan, each of them could become the founder of their own Pîr sub-clan (Kurdish: ber). Mirîds are the lay caste and are divided into tribes, who are each affiliated to a Pîr and a Sheikh priestly lineage assigned to the tribe.
Pre-Islamic Sassanid society was immensely complex, with separate systems of social organisation governing numerous different groups within the empire. Historians believe society comprised four social classes, which linguistic analysis indicates may have been referred to collectively as "pistras". The classes, from highest to lowest status, were priests (Asravan), warriors (Arteshtaran), secretaries (Dabiran), and commoners (Vastryoshan).
In Yemen there exists a hereditary caste, the African-descended Al-Akhdam who are kept as perennial manual workers. Estimates put their number at over 3.5 million residents who are discriminated, out of a total Yemeni population of around 22 million.
Various sociologists have reported caste systems in Africa. The specifics of the caste systems have varied in ethnically and culturally diverse Africa; however, the following features are common – it has been a closed system of social stratification, the social status is inherited, the castes are hierarchical, certain castes are shunned while others are merely endogamous and exclusionary. In some cases, concepts of purity and impurity by birth have been prevalent in Africa. In other cases, such as the Nupe of Nigeria, the Beni Amer of East Africa, and the Tira of Sudan, the exclusionary principle has been driven by evolving social factors.
Among the Igbo of Nigeria – especially Enugu, Anambra, Imo, Abia, Ebonyi, Edo and Delta states of the country – scholar Elijah Obinna finds that the Osu caste system has been and continues to be a major social issue. The Osu caste is determined by one's birth into a particular family irrespective of the religion practised by the individual. Once born into Osu caste, this Nigerian person is an outcast, shunned and ostracised, with limited opportunities or acceptance, regardless of his or her ability or merit. Obinna discusses how this caste system-related identity and power is deployed within government, Church and indigenous communities.
The osu class systems of eastern Nigeria and southern Cameroon are derived from indigenous religious beliefs and discriminate against the "Osus" people as "owned by deities" and outcasts.
The Songhai economy was based on a caste system. The most common were metalworkers, fishermen, and carpenters. Lower caste participants consisted of mostly non-farm working immigrants, who at times were provided special privileges and held high positions in society. At the top were noblemen and direct descendants of the original Songhai people, followed by freemen and traders.
In a review of social stratification systems in Africa, Richter reports that the term caste has been used by French and American scholars to many groups of West African artisans. These groups have been described as inferior, deprived of all political power, have a specific occupation, are hereditary and sometimes despised by others. Richter illustrates caste system in Ivory Coast, with six sub-caste categories. Unlike other parts of the world, mobility is sometimes possible within sub-castes, but not across caste lines. Farmers and artisans have been, claims Richter, distinct castes. Certain sub-castes are shunned more than others. For example, exogamy is rare for women born into families of woodcarvers.
Similarly, the Mandé societies in Gambia, Ghana, Guinea, Ivory Coast, Liberia, Senegal and Sierra Leone have social stratification systems that divide society by ethnic ties. The Mande class system regards the jonow slaves as inferior. Similarly, the Wolof in Senegal is divided into three main groups, the geer (freeborn/nobles), jaam (slaves and slave descendants) and the underclass neeno. In various parts of West Africa, Fulani societies also have class divisions. Other castes include Griots, Forgerons, and Cordonniers.
Tamari has described endogamous castes of over fifteen West African peoples, including the Tukulor, Songhay, Dogon, Senufo, Minianka, Moors, Manding, Soninke, Wolof, Serer, Fulani, and Tuareg. Castes appeared among the Malinke people no later than 14th century, and was present among the Wolof and Soninke, as well as some Songhay and Fulani populations, no later than 16th century. Tamari claims that wars, such as the Sosso-Malinke war described in the Sunjata epic, led to the formation of blacksmith and bard castes among the people that ultimately became the Mali empire.
As West Africa evolved over time, sub-castes emerged that acquired secondary specialisations or changed occupations. Endogamy was prevalent within a caste or among a limited number of castes, yet castes did not form demographic isolates according to Tamari. Social status according to caste was inherited by off-springs automatically; but this inheritance was paternal. That is, children of higher caste men and lower caste or slave concubines would have the caste status of the father.
Ethel M. Albert in 1960 claimed that the societies in Central Africa were caste-like social stratification systems. Similarly, in 1961, Maquet notes that the society in Rwanda and Burundi can be best described as castes. The Tutsi, noted Maquet, considered themselves as superior, with the more numerous Hutu and the least numerous Twa regarded, by birth, as respectively, second and third in the hierarchy of Rwandese society. These groups were largely endogamous, exclusionary and with limited mobility.
In a review published in 1977, Todd reports that numerous scholars report a system of social stratification in different parts of Africa that resembles some or all aspects of caste system. Examples of such caste systems, he claims, are to be found in Ethiopia in communities such as the Gurage and Konso. He then presents the Dime of Southwestern Ethiopia, amongst whom there operates a system which Todd claims can be unequivocally labelled as caste system. The Dime have seven castes whose size varies considerably. Each broad caste level is a hierarchical order that is based on notions of purity, non-purity and impurity. It uses the concepts of defilement to limit contacts between caste categories and to preserve the purity of the upper castes. These caste categories have been exclusionary, endogamous and the social identity inherited. Alula Pankhurst has published a study of caste groups in SW Ethiopia.
Among the Kafa, there were also traditionally groups labelled as castes. "Based on research done before the Derg regime, these studies generally presume the existence of a social hierarchy similar to the caste system. At the top of this hierarchy were the Kafa, followed by occupational groups including blacksmiths (Qemmo), weavers (Shammano), bards (Shatto), potters, and tanners (Manno). In this hierarchy, the Manjo were commonly referred to as hunters, given the lowest status equal only to slaves."
The Borana Oromo of southern Ethiopia in the Horn of Africa also have a class system, wherein the Wata, an acculturated hunter-gatherer group, represent the lowest class. Though the Wata today speak the Oromo language, they have traditions of having previously spoken another language before adopting Oromo.
The traditionally nomadic Somali people are divided into clans, wherein the Rahanweyn agro-pastoral clans and the occupational clans such as the Madhiban were traditionally sometimes treated as outcasts. As Gabboye, the Madhiban along with the Yibir and Tumaal (collectively referred to as sab) have since obtained political representation within Somalia, and their general social status has improved with the expansion of urban centers.
European feudalism with its rigid aristocracy can also be considered as a caste system. A formal political expression of the system was the system of three or four estates of the realm.
For centuries, through the modern times, the majority regarded Cagots who lived primarily in the Basque region of France and Spain as an inferior caste, the untouchables. While they had the same skin color and religion as the majority, in the churches they had to use segregated doors, drink from segregated fonts, and receive communion on the end of long wooden spoons. It was a closed social system. The socially isolated Cagots were endogamous, and chances of social mobility non-existent.
In July 2013, the UK government announced its intention to amend the Equality Act 2010, to "introduce legislation on caste, including any necessary exceptions to the caste provisions, within the framework of domestic discrimination law". Section 9(5) of the Equality Act 2010 provides that "a Minister may by order amend the statutory definition of race to include caste and may provide for exceptions in the Act to apply or not to apply to caste".
From September 2013 to February 2014, Meena Dhanda led a project on "Caste in Britain" for the UK Equality and Human Rights Commission (EHRC).
The existence of a caste system based on the concept of casta in Latin America under colonial Spain has been raised and contemporarily contested, distinguishing it from more general colonial or racial discrimination.
In the opinion of W. Lloyd Warner, discrimination in the Southern United States in the 1930s against Blacks was similar to Indian castes in such features as residential segregation and marriage restrictions. In her 2020 book Caste: The Origins of Our Discontents, journalist Isabel Wilkerson used caste as an analogy to understand racial discrimination in the United States.
Gerald D. Berreman contrasted the differences between discrimination in the United States and India. In India, there are complex religious features which make up the system, whereas in the United States race and color are the basis for differentiation. The caste systems in India and the United States have higher groups which desire to retain their positions for themselves and thus perpetuate the two systems.
The process of creating a homogenized society by social engineering in both India and the Southern US has created other institutions that have made class distinctions among different groups evident. Anthropologist James C. Scott elaborates on how "global capitalism is perhaps the most powerful force for homogenization, whereas the state may be the defender of local difference and variety in some instances". The caste system, a relic of feudalistic economic systems, emphasizes differences between socio-economic classes that are obviated by openly free market capitalistic economic systems, which reward individual initiative, enterprise, merit, and thrift, thereby creating a path for social mobility. When the feudalistic slave economy of the southern United States was dismantled, Jim Crow laws and acts of domestic terrorism committed by white supremacists prevented many industrious African Americans from participating in the formal economy and achieving economic success on parity with their white peers, or destroying that economic success in instances where it was achieved, such as Black Wall Street, with only rare but commonly touted exceptions of lasting personal success such as Maggie Walker, Annie Malone, and Madame C.J. Walker. Parts of the United States are sometimes divided by race and class status despite the national narrative of integration.
A survey on caste discrimination conducted by Equality Labs found 67% of Indian Dalits living in the US reporting that they faced caste-based harassment at the workplace, and 27% reporting verbal or physical assault based on their caste. However, the Carnegie Endowment for International Peace study in 2021 criticizes Equality Labs findings and methodology noting Equality Labs study "relied on a nonrepresentative snowball sampling method to recruit respondents. Furthermore, respondents who did not disclose a caste identity were dropped from the data set. Therefore, it is likely that the sample does not fully represent the South Asian American population and could skew in favor of those who have strong views about caste. While the existence of caste discrimination in India is incontrovertible, its precise extent and intensity in the United States can be contested".
In 2023, Seattle became the first city in the United States to ban discrimination based on caste.
Racial casteism is a term used to identify the relationship between caste, race, and colorism. In modern-day India, the caste system has expanded to include groups and identities from diasporic groups as well such as the Africana Siddis and Kaffirs. Siddis make up 40,000 of India's vast population and are perceived as untouchables under the caste framework.This categorization is paired with anti-black ideology in the country, that is often adapted by broader uses of the term caste in western countries, most notably the United States. Like the Siddis, Africana caste Sri Lanka Kaffirs make up a small minority of the population with scholars noting that the exact number is hard to determine due to exclusion and lack of recognition from the government. Siddis and Kaffirs are considered untouchables due to their darker skin color alongside other physical factors that distinguish the group as lower caste.
The migration of Africana groups such as the Siddis and Kaffirs to South Asia is widely considered to be a result of the Indian Ocean Slave Trade, initiated by Muslim Arabs. During the trade, enslaved Africans were often brought as court servants, herbalists, midwives, or as bonded labor. The limited awareness of these groups can be attributed to caste-ideology fueled from this trade.
The racial understanding of caste has largely been debated by scholars, with some like Dr. B.R Ambedkar arguing that caste differences between higher caste Aryans and lower cast native-Indians being more due to religious factors. While the term remains contended, it is widely understood that this racial assessment is based on the way lower-caste people are treated. Africana diasporic groups who do not fit the caste system reflected by the scheduled tribe are thus considered inferior for their darker skin and grouped in with the untouchables. Since caste is inherited at birth and is inflexible to change throughout a lifetime, this can lead to a racial caste system where colorism largely influences the mobility one has in their lifetime. Terminology shifted away from race-conscious terms in South Asian antiquity, where Aryans had pre-conceived social hierarchies built off of race, to a caste framework during Buddhism's rise in the third century BCE.
Racial caste is embedded in the institutions that make up South Asia, particularly its governing bodies. When it comes to the electorate of India, voter preference is often based on race, caste, religion, alongside other attributing physical and political factors. This power imbalance alongside the rigid nature of caste can work against those of darker skin complexion to hold positions of power.
The foundational divisions of caste have historically been seen as a determining factor in one's skills and career prospects. Today, many people perceive higher education as a means of achieving their own professional goals, but there are still methods based on caste assumptions used to keep lower caste out of universities. This leads to their exclusion from the potential to be part of higher-paying jobs that are perceived as more elite. This social expectation and prevention of access to education and opportunity have elongated the struggle for financial and social equity amongst people from scheduled tribes and castes.
Affirmative Action has been a global phenomenon to develop more spaces in politics, jobs, and education for people from historically disadvantaged backgrounds, which has led to the reservation system being applied to universities. Even with these regulations, caste nevertheless remains a largely determining factor in the University system in India. The guarantee of admittance to a certain proportion of people from oppressed castes is not enough to deal with the implications of divisions in higher education. For example, the reservation percentage can vary by state but is generally around 15% for Scheduled Castes, but 2019-20 data shows most universities miss this mark. Across the board, there is an average of 14.7% of scheduled caste students, meaning many universities are at a far lower rate than legislated. These reservation systems have backlash from upper caste groups, who claim that people are only admitted due to their caste status, as opposed to merit, in a similar argument playing out to affirmative action in the United States.
Reservation policies constitute a first step in providing access to admittance into higher education opportunities but do not overcome the overarching challenge of casteism. Caste-based discrimination and social stigma can still affect the experiences of students from marginalized communities in academic institutions. Universities are a crucial place of integration and moving to offer equitable opportunity beyond just attendance, but implementing protective policies to ensure students can be successful. Attendance at university has already been shown to impact how people view caste and has the potential to shape equity building beyond the current interpersonal and systemic relationship.
Several forms of discrimination manifest in universities:
Social Discrimination: Students from marginalized castes face social discrimination, exclusion, and/or isolation on campuses. This affects their general educational experience and mental well-being. Numerous cases of harassment and bullying based on caste lines have been reported, with drastic consequences for the victims, but often none for the perpetrators. This promotes a hostile environment for students and hampers their ability to engage positively in the academic community.
"When I was enrolled for an undergraduate course, I was vocal about his Dalit identity and vouched for the rights of Dalits and marginalized sections. Most of my upper-caste mates were against reservation. I was always typecast, stereotyped and even labeled with derogatory nicknames," Nishat Kabir, who is studying film at Ambedkar University in New Delhi, told Anadolu Agency.
Campus Facilities: Discrimination can also be observed in access to living facilities, food services, and other campus amenities. Students from marginalized castes may encounter difficulties in availing of these services without bias, and the living arrangements are often internally segregated.
Academic + Faculty Discrimination: Discrimination may extend to the academic sphere, with students facing biased treatment, unfair grading, or limited access to academic resources based on their caste background. Instances of discrimination can involve faculty members, who may hold biases that affect their interactions with students. This comes from the inherent hierarchical nature of caste having built centuries of prejudice against lower caste and indigenous students. This influences academic mentorship, guidance, and opportunities for students from marginalized backgrounds.
“Eighty-four percent of the SC/ST students surveyed said examiners had asked them about their caste directly or indirectly during their evaluations. One student said: “Teachers are fine till they do not know your caste. The moment they come to know, their attitude towards you changes completely.
Due to the challenges experienced on top of the normal pressure of being a student, the discrimination that Dalits and people of OBCs face has led to increased rates of suicide, with numerous examples shown to be tied directly to campus harassment and lack of administrative support.
The clarity that comes from people sharing their experiences has led to significant pushback in the 21st century, where students have been centering fights for justice and equity, often based on movements that student activists of the past have used. Allahabad University has seen a spike in student protests and demonstrations against institutional discrimination. Students used tactics of information spreading from pamphlets and court cases, to public civil disobedience through marches and sit-ins to disrupt the flow of university life and lead to broader discussions. The student unrest was not unique to Allahabad University but was strong enough to last over 90 days.
The initial observational studies of the division of labour in ant colonies attempted to demonstrate that ants specialized in tasks that were best suited to their size when they emerged from the pupae stage into the adult stage. A large proportion of the experimental work was done in species that showed strong variation in size. As the size of an adult was fixed for life, workers of a specific size range came to be called a "caste", calling up the traditional caste system in India in which a human's standing in society was decided at birth.
The notion of caste encouraged a link between scholarship in entomology and sociology because it served as an example of a division of labour in which the participants seemed to be uncompromisingly adapted to special functions and sometimes even unique environments. To bolster the concept of caste, entomologists and sociologists referred to the complementary social or natural parallel and thereby appeared to generalize the concept and give it an appearance of familiarity. In the late 19th- and early 20th centuries, the perceived similarities between the Indian caste system and caste polymorphism in insects were used to create a correspondence or parallelism for the purpose of explaining or clarifying racial stratification in human societies; the explanations came particularly to be employed in the United States. Ideas from heredity and natural selection influenced some sociologists who believed that some groups were predetermined to belong to a lower social or occupational status. Chiefly through the work of W. Lloyd Warner at the University of Chicago, a group of sociologists sharing similar principles came to evolve around the creed of caste in the 1930s and 1940s.
The ecologically oriented sociologist Robert E. Park, although attributing more weight to environmental explanations than the biological nonetheless believed that there were obstacles to the assimilation of blacks into American society and that an "accommodation stage" in a biracially organized caste system was required before full assimilation. He did disavow his position in 1937, suggesting that blacks were a minority and not a caste. The Indian sociologist Radhakamal Mukerjee was influenced by Robert E. Park and adopted the concept of "caste" to describe race relations in the US. According to anthropologist Diane Rodgers, Mukerjee "proceeded to suggest that a caste system should be correctly instituted in the (US) South to ease race relations." Mukerjee often employed both entomological and sociological data and clues to describe caste systems. He wrote "while the fundamental industries of man are dispersed throughout the insect world, the same kind of polymorphism appears again and again in different species of social insects which have reacted in the same manner as man, under the influence of the same environment, to ensure the supply and provision of subsistence." Comparing the caste system in India to caste polymorphism in insects, he noted, "where we find the organization of social insects developed to perfection, there also has been seen among human associations a minute and even rigid specialization of functions, along with ant- and bee-like societal integrity and cohesiveness." He considered the "resemblances between insect associations and caste-ridden societies" to be striking enough to be "amusing". | [
{
"paragraph_id": 0,
"text": "A caste is a fixed social group into which an individual is born within a particular system of social stratification: a caste system. Within such a system, individuals are expected to: marry exclusively within the same caste (endogamy), follow lifestyles often linked to a particular occupation, hold a ritual status observed within a hierarchy, and interact with others based on cultural notions of exclusion, with certain castes considered as either more pure or more polluted than others. Its paradigmatic ethnographic example is the division of India's Hindu society into rigid social groups. Its roots lie in South Asia's ancient history and it still exists. However, the economic significance of the caste system in India has been declining as a result of urbanisation and affirmative action programs. A subject of much scholarship by sociologists and anthropologists, the Hindu caste system is sometimes used as an analogical basis for the study of caste-like social divisions existing outside Hinduism and India. The term \"caste\" is also applied to morphological groupings in eusocial insects such as ants, bees, and termites.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The English word caste (/kɑːst, kæst/) derives from the Spanish and Portuguese casta, which, according to the John Minsheu's Spanish dictionary (1569), means \"race, lineage, tribe or breed\". When the Spanish colonised the New World, they used the word to mean a 'clan or lineage'. It was, however, the Portuguese who first employed casta in the primary modern sense of the English word 'caste' when they applied it to the thousands of endogamous, hereditary Indian social groups they encountered upon their arrival in India in 1498. The use of the spelling caste, with this latter meaning, is first attested in English in 1613. In the Latin American context, the term caste is sometimes used to describe the casta system of racial classification, based on whether a person was of pure European, Indigenous or African descent, or some mix thereof, with the different groups being placed in a racial hierarchy; however, despite the etymological connection between the Latin American casta system and South Asian caste systems (the former giving its name to the latter), it is controversial to what extent the two phenomena are really comparable.",
"title": "Etymology"
},
{
"paragraph_id": 2,
"text": "Modern India's caste system is based on the artificial modern superimposition of an old four-fold theoretical classification called the Varna on the social groupings called the Jāti. Varna conceptualised a society as consisting of four types of varnas, or categories: Brahmin, Kshatriya, Vaishya and Shudra, according to the nature of the work of its members. Varna was not an inherited category and the occupation determined the varna. However, a person's Jati is determined at birth and makes them take up that Jati's occupation; members could and did change their occupation based on personal strengths as well as economic, social and political factors. A 2016 study based on the DNA analysis of unrelated Indians determined that endogamous Jatis originated during the Gupta Empire.",
"title": "In South Asia"
},
{
"paragraph_id": 3,
"text": "From 1901 onwards, for the purposes of the Decennial Census, the British colonial authorities arbitrarily and incorrectly forced all Jātis into the four Varna categories as described in ancient texts. Herbert Hope Risley, the Census Commissioner, noted that \"The principle suggested as a basis was that of classification by social precedence as recognized by native public opinion at the present day, and manifesting itself in the facts that particular castes are supposed to be the modern representatives of one or other of the castes of the theoretical Indian system.\"",
"title": "In South Asia"
},
{
"paragraph_id": 4,
"text": "Varna, as mentioned in ancient Hindu texts, describes society as divided into four categories: Brahmins (scholars and yajna priests), Kshatriyas (rulers and warriors), Vaishyas (farmers, merchants and artisans) and Shudras (workmen/service providers). The texts do not mention any hierarchy or a separate, untouchable category in Varna classifications. Scholars believe that the Varnas system was never truly operational in society and there is no evidence of it ever being a reality in Indian history. The practical division of the society had always been in terms of Jatis (birth groups), which are not based on any specific religious principle but could vary from ethnic origins to occupations to geographic areas. The Jātis have been endogamous social groups without any fixed hierarchy but subject to vague notions of rank articulated over time based on lifestyle and social, political, or economic status. Many of India's major empires and dynasties like the Mauryas, Shalivahanas, Chalukyas, Kakatiyas among many others, were founded by people who would have been classified as Shudras, under the Varnas system, as interpreted by the British rulers. It is well established that by the 9th century, kings from all the four Varnas, including Brahmins and Vaishyas, had occupied the highest seat in the monarchical system in Hindu India, contrary to the Varna theory. In many instances, as in Bengal, historically the kings and rulers had been called upon, when required, to mediate on the ranks of Jātis, which might number in thousands all over the subcontinent and vary by region. In practice, the jātis may or may not fit into the Varna classes and many prominent Jatis, for example the Jats and Yadavs, straddled two Varnas i.e. Kshatriyas and Vaishyas, and the Varna status of Jātis itself was subject to articulation over time.",
"title": "In South Asia"
},
{
"paragraph_id": 5,
"text": "Starting with the 1901 Census of India led by colonial administrator Herbert Hope Risley, all the jātis were grouped under the theoretical varnas categories. According to political scientist Lloyd Rudolph, Risley believed that varna, however ancient, could be applied to all the modern castes found in India, and \"[he] meant to identify and place several hundred million Indians within it.\" The terms varna (conceptual classification based on occupation) and jāti (groups) are two distinct concepts: while varna is a theoretical four-part division, jāti (community) refers to the thousands of actual endogamous social groups prevalent across the subcontinent. The classical authors scarcely speak of anything other than the varnas, as it provided a convenient shorthand; but a problem arises when colonial Indologists sometimes confuse the two.",
"title": "In South Asia"
},
{
"paragraph_id": 6,
"text": "Upon independence from Britain, the Indian Constitution listed 1,108 Jatis across the country as Scheduled Castes in 1950, for positive discrimination. This constitution would also ban discrimination of the basis of the caste, though its practice in India remained intact. The Untouchable communities are sometimes called Scheduled Castes, Dalit or Harijan in contemporary literature. In 2001, Dalits were 16.2% of India's population. Most of the 15 million bonded child workers are from the lowest castes. Independent India has witnessed caste-related violence. In 2005, government recorded approximately 110,000 cases of reported violent acts, including rape and murder, against Dalits. For 2012, the government recorded 651 murders, 3,855 injuries, 1,576 rapes, 490 kidnappings, and 214 cases of arson.",
"title": "In South Asia"
},
{
"paragraph_id": 7,
"text": "The socio-economic limitations of the caste system are reduced due to urbanisation and affirmative action. Nevertheless, the caste system still exists in endogamy and patrimony, and thrives in the politics of democracy, where caste provides ready made constituencies to politicians. The globalisation and economic opportunities from foreign businesses has influenced the growth of India's middle-class population. Some members of the Chhattisgarh Potter Caste Community (CPCC) are middle-class urban professionals and no longer potters unlike the remaining majority of traditional rural potter members. There is persistence of caste in Indian politics. Caste associations have evolved into caste-based political parties. Political parties and the state perceive caste as an important factor for mobilisation of people and policy development.",
"title": "In South Asia"
},
{
"paragraph_id": 8,
"text": "Studies by Bhatt and Beteille have shown changes in status, openness, mobility in the social aspects of Indian society. As a result of modern socio-economic changes in the country, India is experiencing significant changes in the dynamics and the economics of its social sphere. While arranged marriages are still the most common practice in India, the internet has provided a network for younger Indians to take control of their relationships through the use of dating apps. This remains isolated to informal terms, as marriage is not often achieved through the use of these apps. Hypergamy is still a common practice in India and Hindu culture. Men are expected to marry within their caste, or one below, with no social repercussions. If a woman marries into a higher caste, then her children will take the status of their father. If she marries down, her family is reduced to the social status of their son in law. In this case, the women are bearers of the egalitarian principle of the marriage. There would be no benefit in marrying a higher caste if the terms of the marriage did not imply equality. However, men are systematically shielded from the negative implications of the agreement.",
"title": "In South Asia"
},
{
"paragraph_id": 9,
"text": "Geographical factors also determine adherence to the caste system. Many Northern villages are more likely to participate in exogamous marriage, due to a lack of eligible suitors within the same caste. Women in North India have been found to be less likely to leave or divorce their husbands since they are of a relatively lower caste system, and have higher restrictions on their freedoms. On the other hand, Pahari women, of the northern mountains, have much more freedom to leave their husbands without stigma. This often leads to better husbandry as his actions are not protected by social expectations.",
"title": "In South Asia"
},
{
"paragraph_id": 10,
"text": "Chiefly among the factors influencing the rise of exogamy is the rapid urbanisation in India experienced over the last century. It is well known that urban centers tend to be less reliant on agriculture and are more progressive as a whole. As India's cities boomed in population, the job market grew to keep pace. Prosperity and stability were now more easily attained by an individual, and the anxiety to marry quickly and effectively was reduced. Thus, younger, more progressive generations of urban Indians are less likely than ever to participate in the antiquated system of arranged endogamy.",
"title": "In South Asia"
},
{
"paragraph_id": 11,
"text": "India has also implemented a form of Affirmative Action, locally known as \"reservation groups\". Quota system jobs, as well as placements in publicly funded colleges, hold spots for the 8% of India's minority, and underprivileged groups. As a result, in states such as Tamil Nadu or those in the north-east, where underprivileged populations predominate, over 80% of government jobs are set aside in quotas. In education, colleges lower the marks necessary for the Dalits to enter.",
"title": "In South Asia"
},
{
"paragraph_id": 12,
"text": "The Nepali caste system resembles in some respects the Indian jāti system, with numerous jāti divisions with a varna system superimposed. Inscriptions attest the beginnings of a caste system during the Licchavi period. Jayasthiti Malla (1382–1395) categorised Newars into 64 castes (Gellner 2001). A similar exercise was made during the reign of Mahindra Malla (1506–1575). The Hindu social code was later set up in the Gorkha Kingdom by Ram Shah (1603–1636).",
"title": "In South Asia"
},
{
"paragraph_id": 13,
"text": "McKim Marriott claims a social stratification that is hierarchical, closed, endogamous and hereditary is widely prevalent, particularly in western parts of Pakistan. Frederik Barth in his review of this system of social stratification in Pakistan suggested that these are castes.",
"title": "In South Asia"
},
{
"paragraph_id": 14,
"text": "The caste system in Sri Lanka is a division of society into strata, influenced by the textbook jāti system found in India. Ancient Sri Lankan texts such as the Pujavaliya, Sadharmaratnavaliya and Yogaratnakaraya and inscriptional evidence show that the above hierarchy prevailed throughout the feudal period. The repetition of the same caste hierarchy even as recently as the 18th century, in the Kandyan-period Kadayimpoth – Boundary books as well indicates the continuation of the tradition right up to the end of Sri Lanka's monarchy.",
"title": "In South Asia"
},
{
"paragraph_id": 15,
"text": "Balinese caste structure has been described as being based either on three categories—the noble triwangsa (thrice born), the middle class of dwijāti (twice born), and the lower class of ekajāti (once born)--or on four castes",
"title": "Outside South Asia"
},
{
"paragraph_id": 16,
"text": "The Brahmana caste was further subdivided by Dutch ethnographers into two: Siwa and Buda. The Siwa caste was subdivided into five: Kemenuh, Keniten, Mas, Manuba and Petapan. This classification was to accommodate the observed marriage between higher-caste Brahmana men with lower-caste women. The other castes were similarly further sub-classified by 19th-century and early-20th-century ethnographers based on numerous criteria ranging from profession, endogamy or exogamy or polygamy, and a host of other factors in a manner similar to castas in Spanish colonies such as Mexico, and caste system studies in British colonies such as India.",
"title": "Outside South Asia"
},
{
"paragraph_id": 17,
"text": "In the Philippines, pre-colonial societies do not have a single social structure. The class structures can be roughly categorised into four types:",
"title": "Outside South Asia"
},
{
"paragraph_id": 18,
"text": "During the period of the Yuan dynasty, ruler Kublai Khan enforced a Four Class System, which was a legal caste system. The order of four classes of people in descending order were:",
"title": "Outside South Asia"
},
{
"paragraph_id": 19,
"text": "Today, the Hukou system is argued by various Western sources to be the current caste system of China.",
"title": "Outside South Asia"
},
{
"paragraph_id": 20,
"text": "There is significant controversy over the social classes of Tibet, especially with regards to the serfdom in Tibet controversy.",
"title": "Outside South Asia"
},
{
"paragraph_id": 21,
"text": "Heidi Fjeld has put forth the argument that pre-1950s Tibetan society was functionally a caste system, in contrast to previous scholars who defined the Tibetan social class system as similar to European feudal serfdom, as well as non-scholarly western accounts which seek to romanticise a supposedly 'egalitarian' ancient Tibetan society.",
"title": "Outside South Asia"
},
{
"paragraph_id": 22,
"text": "In Japan's history, social strata based on inherited position rather than personal merit, were rigid and highly formalised in a system called mibunsei (身分制). At the top were the Emperor and Court nobles (kuge), together with the Shōgun and daimyō. Below them, the population was divided into four classes: samurai, peasants, craftsmen and merchants. Only samurai were allowed to bear arms. A samurai had a right to kill any peasants, craftsman or merchant who he felt were disrespectful. Merchants were the lowest caste because they did not produce any products. The castes were further sub-divided; for example, peasants were labelled as furiuri, tanagari, mizunomi-byakusho among others. As in Europe, the castes and sub-classes were of the same race, religion and culture.",
"title": "Outside South Asia"
},
{
"paragraph_id": 23,
"text": "Howell, in his review of Japanese society notes that if a Western power had colonised Japan in the 19th century, they would have discovered and imposed a rigid four-caste hierarchy in Japan.",
"title": "Outside South Asia"
},
{
"paragraph_id": 24,
"text": "De Vos and Wagatsuma observe that Japanese society had a systematic and extensive caste system. They discuss how alleged caste impurity and alleged racial inferiority, concepts often assumed to be different, are superficial terms, and are due to identical inner psychological processes, which expressed themselves in Japan and elsewhere.",
"title": "Outside South Asia"
},
{
"paragraph_id": 25,
"text": "Endogamy was common because marriage across caste lines was socially unacceptable.",
"title": "Outside South Asia"
},
{
"paragraph_id": 26,
"text": "Japan had its own untouchable caste, shunned and ostracised, historically referred to by the insulting term eta, now called burakumin. While modern law has officially abolished the class hierarchy, there are reports of discrimination against the buraku or burakumin underclasses. The burakumin are regarded as \"ostracised\". The burakumin are one of the main minority groups in Japan, along with the Ainu of Hokkaidō and those of Korean or Chinese descent.",
"title": "Outside South Asia"
},
{
"paragraph_id": 27,
"text": "The baekjeong (백정) were an \"untouchable\" outcaste of Korea. The meaning today is that of butcher. It originates in the Khitan invasion of Korea in the 11th century. The defeated Khitans who surrendered were settled in isolated communities throughout Goryeo to forestall rebellion. They were valued for their skills in hunting, herding, butchering, and making of leather, common skill sets among nomads. Over time, their ethnic origin was forgotten, and they formed the bottom layer of Korean society.",
"title": "Outside South Asia"
},
{
"paragraph_id": 28,
"text": "In 1392, with the foundation of the Confucian Joseon dynasty, Korea systemised its own native class system. At the top were the two official classes, the Yangban, which literally means \"two classes\". It was composed of scholars (munban) and warriors (muban). Scholars had a significant social advantage over the warriors. Below were the jung-in (중인-中人: literally \"middle people\"). This was a small class of specialised professions such as medicine, accounting, translators, regional bureaucrats, etc. Below that were the sangmin (상민-常民: literally 'commoner'), farmers working their own fields. Korea also had a serf population known as the nobi. The nobi population could fluctuate up to about one third of the population, but on average the nobi made up about 10% of the total population. In 1801, the vast majority of government nobi were emancipated, and by 1858 the nobi population stood at about 1.5% of the total population of Korea. The hereditary nobi system was officially abolished around 1886–87 and the rest of the nobi system was abolished with the Gabo Reform of 1894, but traces remained until 1930.",
"title": "Outside South Asia"
},
{
"paragraph_id": 29,
"text": "The opening of Korea to foreign Christian missionary activity in the late 19th century saw some improvement in the status of the baekjeong. However, everyone was not equal under the Christian congregation, and even so protests erupted when missionaries tried to integrate baekjeong into worship, with non-baekjeong finding this attempt insensitive to traditional notions of hierarchical advantage. Around the same time, the baekjeong began to resist open social discrimination. They focused on social and economic injustices affecting them, hoping to create an egalitarian Korean society. Their efforts included attacking social discrimination by upper class, authorities, and \"commoners\", and the use of degrading language against children in public schools.",
"title": "Outside South Asia"
},
{
"paragraph_id": 30,
"text": "With the Gabo reform of 1896, the class system of Korea was officially abolished. Following the collapse of the Gabo government, the new cabinet, which became the Gwangmu government after the establishment of the Korean Empire, introduced systematic measures for abolishing the traditional class system. One measure was the new household registration system, reflecting the goals of formal social equality, which was implemented by the loyalists' cabinet. Whereas the old registration system signified household members according to their hierarchical social status, the new system called for an occupation.",
"title": "Outside South Asia"
},
{
"paragraph_id": 31,
"text": "While most Koreans by then had surnames and even bongwan, although still substantial number of cheonmin, mostly consisted of serfs and slaves, and untouchables did not. According to the new system, they were then required to fill in the blanks for surname in order to be registered as constituting separate households. Instead of creating their own family name, some cheonmins appropriated their masters' surname, while others simply took the most common surname and its bongwan in the local area. Along with this example, activists within and outside the Korean government had based their visions of a new relationship between the government and people through the concept of citizenship, employing the term inmin (\"people\") and later, kungmin (\"citizen\").",
"title": "Outside South Asia"
},
{
"paragraph_id": 32,
"text": "The Committee for Human Rights in North Korea reported that \"Every North Korean citizen is assigned a heredity-based class and socio-political rank over which the individual exercises no control but which determines all aspects of his or her life.\" Called Songbun, Barbara Demick describes this \"class structure\" as an updating of the hereditary \"caste system\", a combination of Confucianism and Stalinism. It originated in 1946 and was entrenched by the 1960s, and consisted of 53 categories ranging across three classes: loyal, wavering, and impure. The privileged \"loyal\" class included members of the Korean Workers' Party and Korean People's Army officers' corps, the wavering class included peasants, and the impure class included collaborators with Imperial Japan and landowners. She claims that a bad family background is called \"tainted blood\", and that by law this \"tainted blood\" lasts three generations.",
"title": "Outside South Asia"
},
{
"paragraph_id": 33,
"text": "There are three hereditary groups, often called castes, in Yazidism. Membership in the Yazidi society and a caste is conferred by birth. Pîrs and Sheikhs are the priestly castes, which are represented by many sacred lineages (Kurdish: Ocax). Sheikhs are in charge of both religious and administrative functions and are divided into three endogamous houses, Şemsanî, Adanî and Qatanî who are in turn divided into lineages. The Pîrs are in charge of purely religious functions and traditionally consist of 40 lineages or clans, but approximately 90 appellations of Pîr lineages have been found, which may have been a result of new sub-lineages arising and number of clans increasing over time due to division as Yazidis settled in different places and countries. Division could occur in one family, if there were a few brothers in one clan, each of them could become the founder of their own Pîr sub-clan (Kurdish: ber). Mirîds are the lay caste and are divided into tribes, who are each affiliated to a Pîr and a Sheikh priestly lineage assigned to the tribe.",
"title": "Outside South Asia"
},
{
"paragraph_id": 34,
"text": "Pre-Islamic Sassanid society was immensely complex, with separate systems of social organisation governing numerous different groups within the empire. Historians believe society comprised four social classes, which linguistic analysis indicates may have been referred to collectively as \"pistras\". The classes, from highest to lowest status, were priests (Asravan), warriors (Arteshtaran), secretaries (Dabiran), and commoners (Vastryoshan).",
"title": "Outside South Asia"
},
{
"paragraph_id": 35,
"text": "In Yemen there exists a hereditary caste, the African-descended Al-Akhdam who are kept as perennial manual workers. Estimates put their number at over 3.5 million residents who are discriminated, out of a total Yemeni population of around 22 million.",
"title": "Outside South Asia"
},
{
"paragraph_id": 36,
"text": "Various sociologists have reported caste systems in Africa. The specifics of the caste systems have varied in ethnically and culturally diverse Africa; however, the following features are common – it has been a closed system of social stratification, the social status is inherited, the castes are hierarchical, certain castes are shunned while others are merely endogamous and exclusionary. In some cases, concepts of purity and impurity by birth have been prevalent in Africa. In other cases, such as the Nupe of Nigeria, the Beni Amer of East Africa, and the Tira of Sudan, the exclusionary principle has been driven by evolving social factors.",
"title": "Outside South Asia"
},
{
"paragraph_id": 37,
"text": "Among the Igbo of Nigeria – especially Enugu, Anambra, Imo, Abia, Ebonyi, Edo and Delta states of the country – scholar Elijah Obinna finds that the Osu caste system has been and continues to be a major social issue. The Osu caste is determined by one's birth into a particular family irrespective of the religion practised by the individual. Once born into Osu caste, this Nigerian person is an outcast, shunned and ostracised, with limited opportunities or acceptance, regardless of his or her ability or merit. Obinna discusses how this caste system-related identity and power is deployed within government, Church and indigenous communities.",
"title": "Outside South Asia"
},
{
"paragraph_id": 38,
"text": "The osu class systems of eastern Nigeria and southern Cameroon are derived from indigenous religious beliefs and discriminate against the \"Osus\" people as \"owned by deities\" and outcasts.",
"title": "Outside South Asia"
},
{
"paragraph_id": 39,
"text": "The Songhai economy was based on a caste system. The most common were metalworkers, fishermen, and carpenters. Lower caste participants consisted of mostly non-farm working immigrants, who at times were provided special privileges and held high positions in society. At the top were noblemen and direct descendants of the original Songhai people, followed by freemen and traders.",
"title": "Outside South Asia"
},
{
"paragraph_id": 40,
"text": "In a review of social stratification systems in Africa, Richter reports that the term caste has been used by French and American scholars to many groups of West African artisans. These groups have been described as inferior, deprived of all political power, have a specific occupation, are hereditary and sometimes despised by others. Richter illustrates caste system in Ivory Coast, with six sub-caste categories. Unlike other parts of the world, mobility is sometimes possible within sub-castes, but not across caste lines. Farmers and artisans have been, claims Richter, distinct castes. Certain sub-castes are shunned more than others. For example, exogamy is rare for women born into families of woodcarvers.",
"title": "Outside South Asia"
},
{
"paragraph_id": 41,
"text": "Similarly, the Mandé societies in Gambia, Ghana, Guinea, Ivory Coast, Liberia, Senegal and Sierra Leone have social stratification systems that divide society by ethnic ties. The Mande class system regards the jonow slaves as inferior. Similarly, the Wolof in Senegal is divided into three main groups, the geer (freeborn/nobles), jaam (slaves and slave descendants) and the underclass neeno. In various parts of West Africa, Fulani societies also have class divisions. Other castes include Griots, Forgerons, and Cordonniers.",
"title": "Outside South Asia"
},
{
"paragraph_id": 42,
"text": "Tamari has described endogamous castes of over fifteen West African peoples, including the Tukulor, Songhay, Dogon, Senufo, Minianka, Moors, Manding, Soninke, Wolof, Serer, Fulani, and Tuareg. Castes appeared among the Malinke people no later than 14th century, and was present among the Wolof and Soninke, as well as some Songhay and Fulani populations, no later than 16th century. Tamari claims that wars, such as the Sosso-Malinke war described in the Sunjata epic, led to the formation of blacksmith and bard castes among the people that ultimately became the Mali empire.",
"title": "Outside South Asia"
},
{
"paragraph_id": 43,
"text": "As West Africa evolved over time, sub-castes emerged that acquired secondary specialisations or changed occupations. Endogamy was prevalent within a caste or among a limited number of castes, yet castes did not form demographic isolates according to Tamari. Social status according to caste was inherited by off-springs automatically; but this inheritance was paternal. That is, children of higher caste men and lower caste or slave concubines would have the caste status of the father.",
"title": "Outside South Asia"
},
{
"paragraph_id": 44,
"text": "Ethel M. Albert in 1960 claimed that the societies in Central Africa were caste-like social stratification systems. Similarly, in 1961, Maquet notes that the society in Rwanda and Burundi can be best described as castes. The Tutsi, noted Maquet, considered themselves as superior, with the more numerous Hutu and the least numerous Twa regarded, by birth, as respectively, second and third in the hierarchy of Rwandese society. These groups were largely endogamous, exclusionary and with limited mobility.",
"title": "Outside South Asia"
},
{
"paragraph_id": 45,
"text": "In a review published in 1977, Todd reports that numerous scholars report a system of social stratification in different parts of Africa that resembles some or all aspects of caste system. Examples of such caste systems, he claims, are to be found in Ethiopia in communities such as the Gurage and Konso. He then presents the Dime of Southwestern Ethiopia, amongst whom there operates a system which Todd claims can be unequivocally labelled as caste system. The Dime have seven castes whose size varies considerably. Each broad caste level is a hierarchical order that is based on notions of purity, non-purity and impurity. It uses the concepts of defilement to limit contacts between caste categories and to preserve the purity of the upper castes. These caste categories have been exclusionary, endogamous and the social identity inherited. Alula Pankhurst has published a study of caste groups in SW Ethiopia.",
"title": "Outside South Asia"
},
{
"paragraph_id": 46,
"text": "Among the Kafa, there were also traditionally groups labelled as castes. \"Based on research done before the Derg regime, these studies generally presume the existence of a social hierarchy similar to the caste system. At the top of this hierarchy were the Kafa, followed by occupational groups including blacksmiths (Qemmo), weavers (Shammano), bards (Shatto), potters, and tanners (Manno). In this hierarchy, the Manjo were commonly referred to as hunters, given the lowest status equal only to slaves.\"",
"title": "Outside South Asia"
},
{
"paragraph_id": 47,
"text": "The Borana Oromo of southern Ethiopia in the Horn of Africa also have a class system, wherein the Wata, an acculturated hunter-gatherer group, represent the lowest class. Though the Wata today speak the Oromo language, they have traditions of having previously spoken another language before adopting Oromo.",
"title": "Outside South Asia"
},
{
"paragraph_id": 48,
"text": "The traditionally nomadic Somali people are divided into clans, wherein the Rahanweyn agro-pastoral clans and the occupational clans such as the Madhiban were traditionally sometimes treated as outcasts. As Gabboye, the Madhiban along with the Yibir and Tumaal (collectively referred to as sab) have since obtained political representation within Somalia, and their general social status has improved with the expansion of urban centers.",
"title": "Outside South Asia"
},
{
"paragraph_id": 49,
"text": "European feudalism with its rigid aristocracy can also be considered as a caste system. A formal political expression of the system was the system of three or four estates of the realm.",
"title": "Outside South Asia"
},
{
"paragraph_id": 50,
"text": "For centuries, through the modern times, the majority regarded Cagots who lived primarily in the Basque region of France and Spain as an inferior caste, the untouchables. While they had the same skin color and religion as the majority, in the churches they had to use segregated doors, drink from segregated fonts, and receive communion on the end of long wooden spoons. It was a closed social system. The socially isolated Cagots were endogamous, and chances of social mobility non-existent.",
"title": "Outside South Asia"
},
{
"paragraph_id": 51,
"text": "In July 2013, the UK government announced its intention to amend the Equality Act 2010, to \"introduce legislation on caste, including any necessary exceptions to the caste provisions, within the framework of domestic discrimination law\". Section 9(5) of the Equality Act 2010 provides that \"a Minister may by order amend the statutory definition of race to include caste and may provide for exceptions in the Act to apply or not to apply to caste\".",
"title": "Outside South Asia"
},
{
"paragraph_id": 52,
"text": "From September 2013 to February 2014, Meena Dhanda led a project on \"Caste in Britain\" for the UK Equality and Human Rights Commission (EHRC).",
"title": "Outside South Asia"
},
{
"paragraph_id": 53,
"text": "The existence of a caste system based on the concept of casta in Latin America under colonial Spain has been raised and contemporarily contested, distinguishing it from more general colonial or racial discrimination.",
"title": "Outside South Asia"
},
{
"paragraph_id": 54,
"text": "In the opinion of W. Lloyd Warner, discrimination in the Southern United States in the 1930s against Blacks was similar to Indian castes in such features as residential segregation and marriage restrictions. In her 2020 book Caste: The Origins of Our Discontents, journalist Isabel Wilkerson used caste as an analogy to understand racial discrimination in the United States.",
"title": "Outside South Asia"
},
{
"paragraph_id": 55,
"text": "Gerald D. Berreman contrasted the differences between discrimination in the United States and India. In India, there are complex religious features which make up the system, whereas in the United States race and color are the basis for differentiation. The caste systems in India and the United States have higher groups which desire to retain their positions for themselves and thus perpetuate the two systems.",
"title": "Outside South Asia"
},
{
"paragraph_id": 56,
"text": "The process of creating a homogenized society by social engineering in both India and the Southern US has created other institutions that have made class distinctions among different groups evident. Anthropologist James C. Scott elaborates on how \"global capitalism is perhaps the most powerful force for homogenization, whereas the state may be the defender of local difference and variety in some instances\". The caste system, a relic of feudalistic economic systems, emphasizes differences between socio-economic classes that are obviated by openly free market capitalistic economic systems, which reward individual initiative, enterprise, merit, and thrift, thereby creating a path for social mobility. When the feudalistic slave economy of the southern United States was dismantled, Jim Crow laws and acts of domestic terrorism committed by white supremacists prevented many industrious African Americans from participating in the formal economy and achieving economic success on parity with their white peers, or destroying that economic success in instances where it was achieved, such as Black Wall Street, with only rare but commonly touted exceptions of lasting personal success such as Maggie Walker, Annie Malone, and Madame C.J. Walker. Parts of the United States are sometimes divided by race and class status despite the national narrative of integration.",
"title": "Outside South Asia"
},
{
"paragraph_id": 57,
"text": "A survey on caste discrimination conducted by Equality Labs found 67% of Indian Dalits living in the US reporting that they faced caste-based harassment at the workplace, and 27% reporting verbal or physical assault based on their caste. However, the Carnegie Endowment for International Peace study in 2021 criticizes Equality Labs findings and methodology noting Equality Labs study \"relied on a nonrepresentative snowball sampling method to recruit respondents. Furthermore, respondents who did not disclose a caste identity were dropped from the data set. Therefore, it is likely that the sample does not fully represent the South Asian American population and could skew in favor of those who have strong views about caste. While the existence of caste discrimination in India is incontrovertible, its precise extent and intensity in the United States can be contested\".",
"title": "Outside South Asia"
},
{
"paragraph_id": 58,
"text": "In 2023, Seattle became the first city in the United States to ban discrimination based on caste.",
"title": "Outside South Asia"
},
{
"paragraph_id": 59,
"text": "Racial casteism is a term used to identify the relationship between caste, race, and colorism. In modern-day India, the caste system has expanded to include groups and identities from diasporic groups as well such as the Africana Siddis and Kaffirs. Siddis make up 40,000 of India's vast population and are perceived as untouchables under the caste framework.This categorization is paired with anti-black ideology in the country, that is often adapted by broader uses of the term caste in western countries, most notably the United States. Like the Siddis, Africana caste Sri Lanka Kaffirs make up a small minority of the population with scholars noting that the exact number is hard to determine due to exclusion and lack of recognition from the government. Siddis and Kaffirs are considered untouchables due to their darker skin color alongside other physical factors that distinguish the group as lower caste.",
"title": "Racial Casteism"
},
{
"paragraph_id": 60,
"text": "The migration of Africana groups such as the Siddis and Kaffirs to South Asia is widely considered to be a result of the Indian Ocean Slave Trade, initiated by Muslim Arabs. During the trade, enslaved Africans were often brought as court servants, herbalists, midwives, or as bonded labor. The limited awareness of these groups can be attributed to caste-ideology fueled from this trade.",
"title": "Racial Casteism"
},
{
"paragraph_id": 61,
"text": "The racial understanding of caste has largely been debated by scholars, with some like Dr. B.R Ambedkar arguing that caste differences between higher caste Aryans and lower cast native-Indians being more due to religious factors. While the term remains contended, it is widely understood that this racial assessment is based on the way lower-caste people are treated. Africana diasporic groups who do not fit the caste system reflected by the scheduled tribe are thus considered inferior for their darker skin and grouped in with the untouchables. Since caste is inherited at birth and is inflexible to change throughout a lifetime, this can lead to a racial caste system where colorism largely influences the mobility one has in their lifetime. Terminology shifted away from race-conscious terms in South Asian antiquity, where Aryans had pre-conceived social hierarchies built off of race, to a caste framework during Buddhism's rise in the third century BCE.",
"title": "Racial Casteism"
},
{
"paragraph_id": 62,
"text": "Racial caste is embedded in the institutions that make up South Asia, particularly its governing bodies. When it comes to the electorate of India, voter preference is often based on race, caste, religion, alongside other attributing physical and political factors. This power imbalance alongside the rigid nature of caste can work against those of darker skin complexion to hold positions of power.",
"title": "Racial Casteism"
},
{
"paragraph_id": 63,
"text": "The foundational divisions of caste have historically been seen as a determining factor in one's skills and career prospects. Today, many people perceive higher education as a means of achieving their own professional goals, but there are still methods based on caste assumptions used to keep lower caste out of universities. This leads to their exclusion from the potential to be part of higher-paying jobs that are perceived as more elite. This social expectation and prevention of access to education and opportunity have elongated the struggle for financial and social equity amongst people from scheduled tribes and castes.",
"title": "Caste and higher education"
},
{
"paragraph_id": 64,
"text": "Affirmative Action has been a global phenomenon to develop more spaces in politics, jobs, and education for people from historically disadvantaged backgrounds, which has led to the reservation system being applied to universities. Even with these regulations, caste nevertheless remains a largely determining factor in the University system in India. The guarantee of admittance to a certain proportion of people from oppressed castes is not enough to deal with the implications of divisions in higher education. For example, the reservation percentage can vary by state but is generally around 15% for Scheduled Castes, but 2019-20 data shows most universities miss this mark. Across the board, there is an average of 14.7% of scheduled caste students, meaning many universities are at a far lower rate than legislated. These reservation systems have backlash from upper caste groups, who claim that people are only admitted due to their caste status, as opposed to merit, in a similar argument playing out to affirmative action in the United States.",
"title": "Caste and higher education"
},
{
"paragraph_id": 65,
"text": "Reservation policies constitute a first step in providing access to admittance into higher education opportunities but do not overcome the overarching challenge of casteism. Caste-based discrimination and social stigma can still affect the experiences of students from marginalized communities in academic institutions. Universities are a crucial place of integration and moving to offer equitable opportunity beyond just attendance, but implementing protective policies to ensure students can be successful. Attendance at university has already been shown to impact how people view caste and has the potential to shape equity building beyond the current interpersonal and systemic relationship.",
"title": "Caste and higher education"
},
{
"paragraph_id": 66,
"text": "Several forms of discrimination manifest in universities:",
"title": "Caste and higher education"
},
{
"paragraph_id": 67,
"text": "Social Discrimination: Students from marginalized castes face social discrimination, exclusion, and/or isolation on campuses. This affects their general educational experience and mental well-being. Numerous cases of harassment and bullying based on caste lines have been reported, with drastic consequences for the victims, but often none for the perpetrators. This promotes a hostile environment for students and hampers their ability to engage positively in the academic community.",
"title": "Caste and higher education"
},
{
"paragraph_id": 68,
"text": "\"When I was enrolled for an undergraduate course, I was vocal about his Dalit identity and vouched for the rights of Dalits and marginalized sections. Most of my upper-caste mates were against reservation. I was always typecast, stereotyped and even labeled with derogatory nicknames,\" Nishat Kabir, who is studying film at Ambedkar University in New Delhi, told Anadolu Agency.",
"title": "Caste and higher education"
},
{
"paragraph_id": 69,
"text": "Campus Facilities: Discrimination can also be observed in access to living facilities, food services, and other campus amenities. Students from marginalized castes may encounter difficulties in availing of these services without bias, and the living arrangements are often internally segregated.",
"title": "Caste and higher education"
},
{
"paragraph_id": 70,
"text": "Academic + Faculty Discrimination: Discrimination may extend to the academic sphere, with students facing biased treatment, unfair grading, or limited access to academic resources based on their caste background. Instances of discrimination can involve faculty members, who may hold biases that affect their interactions with students. This comes from the inherent hierarchical nature of caste having built centuries of prejudice against lower caste and indigenous students. This influences academic mentorship, guidance, and opportunities for students from marginalized backgrounds.",
"title": "Caste and higher education"
},
{
"paragraph_id": 71,
"text": "“Eighty-four percent of the SC/ST students surveyed said examiners had asked them about their caste directly or indirectly during their evaluations. One student said: “Teachers are fine till they do not know your caste. The moment they come to know, their attitude towards you changes completely.",
"title": "Caste and higher education"
},
{
"paragraph_id": 72,
"text": "Due to the challenges experienced on top of the normal pressure of being a student, the discrimination that Dalits and people of OBCs face has led to increased rates of suicide, with numerous examples shown to be tied directly to campus harassment and lack of administrative support.",
"title": "Caste and higher education"
},
{
"paragraph_id": 73,
"text": "The clarity that comes from people sharing their experiences has led to significant pushback in the 21st century, where students have been centering fights for justice and equity, often based on movements that student activists of the past have used. Allahabad University has seen a spike in student protests and demonstrations against institutional discrimination. Students used tactics of information spreading from pamphlets and court cases, to public civil disobedience through marches and sit-ins to disrupt the flow of university life and lead to broader discussions. The student unrest was not unique to Allahabad University but was strong enough to last over 90 days.",
"title": "Caste and higher education"
},
{
"paragraph_id": 74,
"text": "The initial observational studies of the division of labour in ant colonies attempted to demonstrate that ants specialized in tasks that were best suited to their size when they emerged from the pupae stage into the adult stage. A large proportion of the experimental work was done in species that showed strong variation in size. As the size of an adult was fixed for life, workers of a specific size range came to be called a \"caste\", calling up the traditional caste system in India in which a human's standing in society was decided at birth.",
"title": "Caste in sociology and entomology"
},
{
"paragraph_id": 75,
"text": "The notion of caste encouraged a link between scholarship in entomology and sociology because it served as an example of a division of labour in which the participants seemed to be uncompromisingly adapted to special functions and sometimes even unique environments. To bolster the concept of caste, entomologists and sociologists referred to the complementary social or natural parallel and thereby appeared to generalize the concept and give it an appearance of familiarity. In the late 19th- and early 20th centuries, the perceived similarities between the Indian caste system and caste polymorphism in insects were used to create a correspondence or parallelism for the purpose of explaining or clarifying racial stratification in human societies; the explanations came particularly to be employed in the United States. Ideas from heredity and natural selection influenced some sociologists who believed that some groups were predetermined to belong to a lower social or occupational status. Chiefly through the work of W. Lloyd Warner at the University of Chicago, a group of sociologists sharing similar principles came to evolve around the creed of caste in the 1930s and 1940s.",
"title": "Caste in sociology and entomology"
},
{
"paragraph_id": 76,
"text": "The ecologically oriented sociologist Robert E. Park, although attributing more weight to environmental explanations than the biological nonetheless believed that there were obstacles to the assimilation of blacks into American society and that an \"accommodation stage\" in a biracially organized caste system was required before full assimilation. He did disavow his position in 1937, suggesting that blacks were a minority and not a caste. The Indian sociologist Radhakamal Mukerjee was influenced by Robert E. Park and adopted the concept of \"caste\" to describe race relations in the US. According to anthropologist Diane Rodgers, Mukerjee \"proceeded to suggest that a caste system should be correctly instituted in the (US) South to ease race relations.\" Mukerjee often employed both entomological and sociological data and clues to describe caste systems. He wrote \"while the fundamental industries of man are dispersed throughout the insect world, the same kind of polymorphism appears again and again in different species of social insects which have reacted in the same manner as man, under the influence of the same environment, to ensure the supply and provision of subsistence.\" Comparing the caste system in India to caste polymorphism in insects, he noted, \"where we find the organization of social insects developed to perfection, there also has been seen among human associations a minute and even rigid specialization of functions, along with ant- and bee-like societal integrity and cohesiveness.\" He considered the \"resemblances between insect associations and caste-ridden societies\" to be striking enough to be \"amusing\".",
"title": "Caste in sociology and entomology"
}
] | A caste is a fixed social group into which an individual is born within a particular system of social stratification: a caste system. Within such a system, individuals are expected to: marry exclusively within the same caste (endogamy), follow lifestyles often linked to a particular occupation, hold a ritual status observed within a hierarchy, and interact with others based on cultural notions of exclusion, with certain castes considered as either more pure or more polluted than others. Its paradigmatic ethnographic example is the division of India's Hindu society into rigid social groups. Its roots lie in South Asia's ancient history and it still exists. However, the economic significance of the caste system in India has been declining as a result of urbanisation and affirmative action programs. A subject of much scholarship by sociologists and anthropologists, the Hindu caste system is sometimes used as an analogical basis for the study of caste-like social divisions existing outside Hinduism and India. The term "caste" is also applied to morphological groupings in eusocial insects such as ants, bees, and termites. | 2001-11-28T05:32:13Z | 2023-12-30T15:17:43Z | [
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7,258 | Creation | Creation or The Creation may refer to nature in its broadest sense, i.e. the physical world or universe, or to any of the following: | [
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] | Creation or The Creation may refer to nature in its broadest sense, i.e. the physical world or universe, or to any of the following: | 2001-11-28T06:23:54Z | 2023-12-22T11:12:48Z | [
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7,262 | CORAL | CORAL, short for Computer On-line Real-time Applications Language is a programming language originally developed in 1964 at the Royal Radar Establishment (RRE), Malvern, Worcestershire, in the United Kingdom. The R was originally for "radar", not "real-time". It was influenced primarily by JOVIAL, and thus ALGOL, but is not a subset of either.
The most widely-known version, CORAL 66, was subsequently developed by I. F. Currie and M. Griffiths under the auspices of the Inter-Establishment Committee for Computer Applications (IECCA). Its official definition, edited by Woodward, Wetherall, and Gorman, was first published in 1970.
In 1971, CORAL was selected by the Ministry of Defence as the language for future military applications and to support this, a standardization program was introduced to ensure CORAL compilers met the specifications. This process was later adopted by the US Department of Defense while defining Ada.
Coral 66 is a general-purpose programming language based on ALGOL 60, with some features from Coral 64, JOVIAL, and Fortran. It includes structured record types (as in Pascal) and supports the packing of data into limited storage (also as in Pascal). Like Edinburgh IMP it allows inline (embedded) assembly language, and also offers good runtime checking and diagnostics. It is designed for real-time computing and embedded system applications, and for use on computers with limited processing power, including those limited to fixed-point arithmetic and those without support for dynamic storage allocation.
The language was an inter-service standard for British military programming, and was also widely adopted for civil purposes in the British control and automation industry. It was used to write software for both the Ferranti and General Electric Company (GEC) computers from 1971 onwards. Implementations also exist for the Interdata 8/32, PDP-11, VAX and Alpha platforms and HPE Integrity Servers; for the Honeywell, and for the Computer Technology Limited (CTL, later ITL) Modular-1; and for SPARC running Solaris, and Intel running Linux.
Queen Elizabeth II sent the first email from a head of state from the Royal Signals and Radar Establishment over the ARPANET on March 26, 1976. The message read "This message to all ARPANET users announces the availability on ARPANET of the Coral 66 compiler provided by the GEC 4080 computer at the Royal Signals and Radar Establishment, Malvern, England, ... Coral 66 is the standard real-time high level language adopted by the Ministry of Defence."
As Coral was aimed at a variety of real-time work, rather than general office data processing, there was no standardised equivalent to a stdio library. IECCA recommended a primitive input/output (I/O) package to accompany any compiler (in a document titled Input/Output of Character data in Coral 66 Utility Programs). Most implementers avoided this by producing Coral interfaces to extant Fortran and, later, C libraries.
CORAL's most significant contribution to computing may have been enforcing quality control in commercial compilers. To have a CORAL compiler approved by IECCA, and thus allowing a compiler to be marketed as a CORAL 66 compiler, the candidate compiler had to compile and execute a standard suite of 25 test programs and 6 benchmark programs. The process was part of the British Standard (BS) 5905 approval process. This methodology was observed and adapted later by the United States Department of Defense for the certification of Ada compilers.
Source code for a Coral 66 compiler (written in BCPL) has been recovered and the Official Definition of Coral 66 document by Her Majesty's Stationery Office (HMSO) has been scanned; the Ministry of Defence patent office has issued a licence to the Edinburgh Computer History project to allow them to put both the code and the language reference online for non-commercial use.
A variant of Coral 66 named PO-CORAL was developed during the late 1970s to early 1980s by the British General Post Office (GPO), together with GEC, STC and Plessey, for use on the System X digital telephone exchange control computers. This was later renamed BT-CORAL when British Telecom was spun off from the Post Office. Unique features of this language were the focus on real-time execution, message processing, limits on statement execution between waiting for input, and a prohibition on recursion to remove the need for a stack. | [
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"text": "The language was an inter-service standard for British military programming, and was also widely adopted for civil purposes in the British control and automation industry. It was used to write software for both the Ferranti and General Electric Company (GEC) computers from 1971 onwards. Implementations also exist for the Interdata 8/32, PDP-11, VAX and Alpha platforms and HPE Integrity Servers; for the Honeywell, and for the Computer Technology Limited (CTL, later ITL) Modular-1; and for SPARC running Solaris, and Intel running Linux.",
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"text": "Queen Elizabeth II sent the first email from a head of state from the Royal Signals and Radar Establishment over the ARPANET on March 26, 1976. The message read \"This message to all ARPANET users announces the availability on ARPANET of the Coral 66 compiler provided by the GEC 4080 computer at the Royal Signals and Radar Establishment, Malvern, England, ... Coral 66 is the standard real-time high level language adopted by the Ministry of Defence.\"",
"title": "Overview"
},
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"text": "As Coral was aimed at a variety of real-time work, rather than general office data processing, there was no standardised equivalent to a stdio library. IECCA recommended a primitive input/output (I/O) package to accompany any compiler (in a document titled Input/Output of Character data in Coral 66 Utility Programs). Most implementers avoided this by producing Coral interfaces to extant Fortran and, later, C libraries.",
"title": "Overview"
},
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"text": "CORAL's most significant contribution to computing may have been enforcing quality control in commercial compilers. To have a CORAL compiler approved by IECCA, and thus allowing a compiler to be marketed as a CORAL 66 compiler, the candidate compiler had to compile and execute a standard suite of 25 test programs and 6 benchmark programs. The process was part of the British Standard (BS) 5905 approval process. This methodology was observed and adapted later by the United States Department of Defense for the certification of Ada compilers.",
"title": "Overview"
},
{
"paragraph_id": 8,
"text": "Source code for a Coral 66 compiler (written in BCPL) has been recovered and the Official Definition of Coral 66 document by Her Majesty's Stationery Office (HMSO) has been scanned; the Ministry of Defence patent office has issued a licence to the Edinburgh Computer History project to allow them to put both the code and the language reference online for non-commercial use.",
"title": "Overview"
},
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"text": "A variant of Coral 66 named PO-CORAL was developed during the late 1970s to early 1980s by the British General Post Office (GPO), together with GEC, STC and Plessey, for use on the System X digital telephone exchange control computers. This was later renamed BT-CORAL when British Telecom was spun off from the Post Office. Unique features of this language were the focus on real-time execution, message processing, limits on statement execution between waiting for input, and a prohibition on recursion to remove the need for a stack.",
"title": "Variants"
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] | CORAL, short for Computer On-line Real-time Applications Language is a programming language originally developed in 1964 at the Royal Radar Establishment (RRE), Malvern, Worcestershire, in the United Kingdom. The R was originally for "radar", not "real-time". It was influenced primarily by JOVIAL, and thus ALGOL, but is not a subset of either. The most widely-known version, CORAL 66, was subsequently developed by I. F. Currie and M. Griffiths under the auspices of the Inter-Establishment Committee for Computer Applications (IECCA). Its official definition, edited by Woodward, Wetherall, and Gorman, was first published in 1970. In 1971, CORAL was selected by the Ministry of Defence as the language for future military applications and to support this, a standardization program was introduced to ensure CORAL compilers met the specifications. This process was later adopted by the US Department of Defense while defining Ada. | 2002-02-25T15:51:15Z | 2023-09-04T21:23:32Z | [
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7,264 | Rhyming slang | Rhyming slang is a form of slang word construction in the English language. It is especially prevalent among Cockneys in England, and was first used in the early 19th century in the East End of London; hence its alternative name, Cockney rhyming slang. In the US, especially the criminal underworld of the West Coast between 1880 and 1920, rhyming slang has sometimes been known as Australian slang.
The construction of rhyming slang involves replacing a common word with a phrase of two or more words, the last of which rhymes with the original word; then, in almost all cases, omitting, from the end of the phrase, the secondary rhyming word (which is thereafter implied), making the origin and meaning of the phrase elusive to listeners not in the know.
The form of Cockney slang is made clear with the following example. The rhyming phrase "apples and pears" is used to mean "stairs". Following the pattern of omission, "and pears" is dropped, thus the spoken phrase "I'm going up the apples" means "I'm going up the stairs".
The following are further common examples of these phrases:
In some examples the meaning is further obscured by adding a second iteration of rhyme and truncation to the original rhymed phrase. For example, the word "Aris" is often used to indicate the buttocks. This is the result of a double rhyme, starting with the original rough synonym "arse", which is rhymed with "bottle and glass", leading to "bottle". "Bottle" was then rhymed with "Aristotle" and truncated to "Aris".
Ghil'ad Zuckermann, a linguist and revivalist, has proposed a distinction between rhyming slang based on sound only, and phono-semantic rhyming slang, which includes a semantic link between the slang expression and its referent (the thing it refers to). An example of rhyming slang based only on sound is the Cockney "tea leaf" (thief). An example of phono-semantic rhyming slang is the Cockney "sorrowful tale" ((three months in) jail), in which case the person coining the slang term sees a semantic link, sometimes jocular, between the Cockney expression and its referent.
The use of rhyming slang has spread beyond the purely dialectal and some examples are to be found in the mainstream British English lexicon, although many users may be unaware of the origin of those words.
Most of the words changed by this process are nouns, but a few are adjectival, e.g., "bales" of cotton (rotten), or the adjectival phrase "on one's tod" for "on one's own", after Tod Sloan, a famous jockey.
Rhyming slang is believed to have originated in the mid-19th century in the East End of London, with several sources suggesting some time in the 1840s. The Flash Dictionary of unknown authorship, published in 1921 by Smeeton (48mo), contains a few rhymes. John Camden Hotten's 1859 Dictionary of Modern Slang, Cant, and Vulgar Words likewise states that it originated in the 1840s ("about twelve or fifteen years ago"), but with "chaunters" and "patterers" in the Seven Dials area of London. Hotten's Dictionary included the first known "Glossary of the Rhyming Slang", which included later mainstays such as "frog and toad" (the main road) and "apples and pears" (stairs), as well as many more obscure examples, e.g. "Battle of the Nile" (a tile, a vulgar term for a hat), "Duke of York" (take a walk), and "Top of Rome" (home).
It remains a matter of speculation exactly how rhyming slang originated, for example, as a linguistic game among friends or as a cryptolect developed intentionally to confuse non-locals. If deliberate, it may also have been used to maintain a sense of community, or to allow traders to talk amongst themselves in marketplaces to facilitate collusion, without customers knowing what they were saying, or by criminals to confuse the police (see thieves' cant).
The academic, lexicographer and radio personality Terence Dolan has suggested that rhyming slang was invented by Irish immigrants to London "so the actual English wouldn't understand what they were talking about."
Many examples of rhyming slang are based on locations in London, such as "Peckham Rye", meaning "tie", which dates from the late nineteenth century; "Hampstead Heath", meaning "teeth" (usually as "Hampsteads"), which was first recorded in 1887; and "barnet" (Barnet Fair), meaning "hair", which dates from the 1850s.
In the 20th century, rhyming slang began to be based on the names of celebrities — Gregory Peck (neck; cheque), Ruby Murray [as Ruby] (curry), Alan Whicker [as "Alan Whickers"] (knickers), Puff Daddy (caddy), Max Miller (pillow [pronounced /ˈpilə/]), Meryl Streep (cheap), Nat King Cole ("dole"), Britney Spears (beers, tears), Henry Halls (balls) — and after pop culture references — Captain Kirk (work), Pop Goes the Weasel (diesel), Mona Lisa (pizza), Mickey Mouse (Scouse), Wallace and Gromit (vomit), Brady Bunch (lunch), Bugs Bunny (money), Scooby-Doo (clue), Winnie the Pooh (shoe), and Schindler's List (pissed). Some words have numerous definitions, such as dead (Father Ted, "gone to bed", brown bread), door (Roger Moore, Andrea Corr, George Bernard Shaw, Rory O'Moore), cocaine (Kurt Cobain; [as "Charlie"] Bob Marley, Boutros Boutros-Ghali, Gianluca Vialli, oats and barley; [as "line"] Patsy Cline; [as "powder"] Niki Lauda), flares ("Lionel Blairs", "Tony Blairs", "Rupert Bears", "Dan Dares"), etc.
Many examples have passed into common usage. Some substitutions have become relatively widespread in England in their contracted form. "To have a butcher's", meaning to have a look, originates from "butcher's hook", an S-shaped hook used by butchers to hang up meat, and dates from the late nineteenth century but has existed independently in general use from around the 1930s simply as "butchers". Similarly, "use your loaf", meaning "use your head", derives from "loaf of bread" and also dates from the late nineteenth century but came into independent use in the 1930s.
Conversely usages have lapsed, or been usurped ("Hounslow Heath" for teeth, was replaced by "Hampsteads" from the heath of the same name, starting c. 1887).
In some cases, false etymologies exist. For example, the term "barney" has been used to mean an altercation or fight since the late nineteenth century, although without a clear derivation. In the 2001 feature film Ocean's Eleven, the explanation for the term is that it derives from Barney Rubble, the name of a cartoon character from the Flintstones television program many decades later in origin.
Rhyming slang is used mainly in London in England but can to some degree be understood across the country. Some constructions, however, rely on particular regional accents for the rhymes to work. For instance, the term "Charing Cross" (a place in London), used to mean "horse" since the mid-nineteenth century, does not work for a speaker without the lot–cloth split, common in London at that time but not nowadays. A similar example is "Joanna" meaning "piano", which is based on the pronunciation of "piano" as "pianna" /piˈænə/. Unique formations also exist in other parts of the United Kingdom, such as in the East Midlands, where the local accent has formed "Derby Road", which rhymes with "cold".
Outside England, rhyming slang is used in many English-speaking countries in the Commonwealth of Nations, with local variations. For example, in Australian slang, the term for an English person is "pommy", which has been proposed as a rhyme on "pomegranate", pronounced "Pummy Grant", which rhymed with "immigrant".
Rhyming slang is continually evolving, and new phrases are introduced all the time; new personalities replace old ones—pop culture introduces new words—as in "I haven't a Scooby" (from Scooby Doo, the eponymous cartoon dog of the cartoon series) meaning "I haven't a clue".
Rhyming slang is often used as a substitute for words regarded as taboo, often to the extent that the association with the taboo word becomes unknown over time. "Berk" (often used to mean "foolish person") originates from the most famous of all fox hunts, the "Berkeley Hunt" meaning "cunt"; "cobblers" (often used in the context "what you said is rubbish") originates from "cobbler's awls", meaning "balls" (as in testicles); and "hampton" (usually "'ampton") meaning "prick" (as in penis) originates from "Hampton Wick" (a place in London) – the second part "wick" also entered common usage as "he gets on my wick" (he is an annoying person).
Lesser taboo terms include "pony and trap" for "crap" (as in defecate, but often used to denote nonsense or low quality); to blow a raspberry (rude sound of derision) from raspberry tart for "fart"; "D'Oyly Carte" (an opera company) for "fart"; "Jimmy Riddle" (an American country musician) for "piddle" (as in urinate), "J. Arthur Rank" (a film mogul), "Sherman tank", "Jodrell Bank" or "ham shank" for "wank", "Bristol Cities" (contracted to 'Bristols') for "titties", etc. "Taking the Mick" or "taking the Mickey" is thought to be a rhyming slang form of "taking the piss", where "Mick" came from "Mickey Bliss".
In December 2004 Joe Pasquale, winner of the fourth series of ITV's I'm a Celebrity... Get Me Out of Here!, became well known for his frequent use of the term "Jacobs", for Jacob's Cream Crackers, a rhyming slang term for knackers i.e. testicles.
Rhyming slang has been widely used in popular culture including film, television, music, literature, sport and degree classification.
In the British undergraduate degree classification system a first class honours degree is known as a "Geoff Hurst" (First) after the English 1966 World Cup footballer. An upper second class degree (a.k.a. a "2:1") is called an "Attila the Hun", and a lower second class ("2:2") a "Desmond Tutu", while a third class degree is known as a "Thora Hird" or "Douglas Hurd".
Cary Grant's character teaches rhyming slang to his female companion in Mr. Lucky (1943), describing it as 'Australian rhyming slang'. Rhyming slang is also used and described in a scene of the 1967 film To Sir, with Love starring Sidney Poitier, where the English students tell their foreign teacher that the slang is a drag and something for old people. The closing song of the 1969 crime caper, The Italian Job, ("Getta Bloomin' Move On" a.k.a. "The Self Preservation Society") contains many slang terms.
Rhyming slang has been used to lend authenticity to an East End setting. Examples include Lock, Stock and Two Smoking Barrels (1998) (wherein the slang is translated via subtitles in one scene); The Limey (1999); Sexy Beast (2000); Snatch (2000); Ocean's Eleven (2001); and Austin Powers in Goldmember (2002); It's All Gone Pete Tong (2004), after BBC radio disc jockey Pete Tong whose name is used in this context as rhyming slang for "wrong"; Green Street Hooligans (2005). In Margin Call (2011), Will Emerson, played by London-born actor Paul Bettany, asks a friend on the telephone, "How's the trouble and strife?" ("wife").
Cockneys vs Zombies (2012) mocked the genesis of rhyming slang terms when a Cockney character calls zombies "Trafalgars" to even his Cockney fellows' puzzlement; he then explains it thus: "Trafalgar square – fox and hare – hairy Greek – five day week – weak and feeble – pins and needles – needle and stitch – Abercrombie and Fitch – Abercrombie: zombie".
The live-action Disney film Mary Poppins Returns song "Trip A Little Light Fantastic" involves Cockney rhyming slang in part of its lyrics, and is primarily spoken by the London lamplighters.
In the animated superhero film Spider-Man: Across the Spider-Verse (2023), character Spider-Punk, a Camden native, is heard saying: "I haven’t got a scooby" ("clue").
Slang had a resurgence of popular interest in Britain beginning in the 1970s, resulting from its use in a number of London-based television programmes such as Steptoe and Son (1970–74); and Not On Your Nellie (1974–75), starring Hylda Baker as Nellie Pickersgill, alludes to the phrase "not on your Nellie Duff", rhyming slang for "not on your puff" i.e. not on your life. Similarly, The Sweeney (1975–78) alludes to the phrase "Sweeney Todd" for "Flying Squad", a rapid response unit of London's Metropolitan Police. In The Fall and Rise of Reginald Perrin (1976–79), a comic twist was added to rhyming slang by way of spurious and fabricated examples which a young man had laboriously attempted to explain to his father (e.g. 'dustbins' meaning 'children', as in 'dustbin lids'='kids'; 'Teds' being 'Ted Heath' and thus 'teeth'; and even 'Chitty Chitty' being 'Chitty Chitty Bang Bang', and thus 'rhyming slang'...). It was also featured in an episode of The Good Life in the first season (1975) where Tom and Barbara purchase a wood-burning range from a junk trader called Sam, who litters his language with phony slang in hopes of getting higher payment. He comes up with a fake story as to the origin of Cockney rhyming slang and is caught out rather quickly. In The Jeffersons season 2 (1976) episode "The Breakup: Part 2", Mr. Bentley explains Cockney rhyming slang to George Jefferson, in that "whistle and flute" means "suit", "apples and pears" means "stairs", "plates of meat" means "feet".
The use of rhyming slang was also prominent in Mind Your Language (1977–79), Citizen Smith (1977–80), Minder (1979–94), Only Fools and Horses (1981–91), and EastEnders (1985–). Minder could be quite uncompromising in its use of obscure forms without any clarification. Thus the non-Cockney viewer was obliged to deduce that, say, "iron" was "male homosexual" ('iron'='iron hoof'='poof'). One episode in Series 5 of Steptoe and Son was entitled "Any Old Iron", for the same reason, when Albert thinks that Harold is 'on the turn'. Variations of rhyming slang were also used in sitcom Birds of a Feather, by main characters Sharon and Tracey, often to the confusion of character, Dorian Green, who was unfamiliar with the terms.
One early US show to regularly feature rhyming slang was the Saturday morning children's show The Bugaloos (1970–72), with the character of Harmony (Wayne Laryea) often incorporating it in his dialogue.
In popular music, Spike Jones and his City Slickers recorded "So 'Elp Me", based on rhyming slang, in 1950. The 1967 Kinks song "Harry Rag" was based on the usage of the name Harry Wragg as rhyming slang for "fag" (i.e. a cigarette). The idiom made a brief appearance in the UK-based DJ reggae music of the 1980s in the hit "Cockney Translation" by Smiley Culture of South London; this was followed a couple of years later by Domenick and Peter Metro's "Cockney and Yardie". London-based artists such as Audio Bullys and Chas & Dave (and others from elsewhere in the UK, such as The Streets, who are from Birmingham) frequently use rhyming slang in their songs.
British-born M.C. MF Doom released an ode entitled "Rhymin' Slang", after settling in the UK in 2010. The track was released on the 2012 album JJ Doom album Keys to the Kuffs.
Another contributor was Lonnie Donegan who had a song called "My Old Man's a Dustman". In it he says his father has trouble putting on his boots "He's got such a job to pull them up that he calls them daisy roots".
In modern literature, Cockney rhyming slang is used frequently in the novels and short stories of Kim Newman, for instance in the short story collections "The Man from the Diogenes Club" (2006) and "Secret Files of the Diogenes Club" (2007), where it is explained at the end of each book.
It is also parodied in Going Postal by Terry Pratchett, which features a geriatric Junior Postman by the name of Tolliver Groat, a speaker of 'Dimwell Arrhythmic Rhyming Slang', the only rhyming slang on the Disc which does not actually rhyme. Thus, a wig is a 'prunes', from 'syrup of prunes', an obvious parody of the Cockney syrup from syrup of figs – wig. There are numerous other parodies, though it has been pointed out that the result is even more impenetrable than a conventional rhyming slang and so may not be quite so illogical as it seems, given the assumed purpose of rhyming slang as a means of communicating in a manner unintelligible to all but the initiated.
In the book Goodbye to All That by Robert Graves, a beer is a "broken square" as Welch Fusiliers officers walk into a pub and order broken squares when they see men from the Black Watch. The Black Watch had a minor blemish on its record of otherwise unbroken squares. Fistfights ensued.
In Dashiell Hammett's The Dain Curse, the protagonist exhibits familiarity with Cockney rhyming slang. referring to gambling at dice with the phrase "rats and mice."
Cockney rhyming slang is one of the main influences for the dialect spoken in A Clockwork Orange (1962). The author of the novel, Anthony Burgess, also believed the phrase "as queer as a clockwork orange" was Cockney slang having heard it in a London pub in 1945, and subsequently named it in the title of his book.
In Scottish football, a number of clubs have nicknames taken from rhyming slang. Partick Thistle are known as the "Harry Rags", which is taken from the rhyming slang of their 'official' nickname "the jags". Rangers are known as the "Teddy Bears", which comes from the rhyming slang for "the Gers" (shortened version of Ran-gers). Heart of Midlothian are known as the "Jambos", which comes from "Jam Tarts" which is the rhyming slang for "Hearts" which is the common abbreviation of the club's name. Hibernian are also referred to as "The Cabbage" which comes from Cabbage and Ribs being the rhyming slang for Hibs.
In rugby league, "meat pie" is used for try. | [
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{
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"text": "The construction of rhyming slang involves replacing a common word with a phrase of two or more words, the last of which rhymes with the original word; then, in almost all cases, omitting, from the end of the phrase, the secondary rhyming word (which is thereafter implied), making the origin and meaning of the phrase elusive to listeners not in the know.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The form of Cockney slang is made clear with the following example. The rhyming phrase \"apples and pears\" is used to mean \"stairs\". Following the pattern of omission, \"and pears\" is dropped, thus the spoken phrase \"I'm going up the apples\" means \"I'm going up the stairs\".",
"title": "Examples"
},
{
"paragraph_id": 3,
"text": "The following are further common examples of these phrases:",
"title": "Examples"
},
{
"paragraph_id": 4,
"text": "In some examples the meaning is further obscured by adding a second iteration of rhyme and truncation to the original rhymed phrase. For example, the word \"Aris\" is often used to indicate the buttocks. This is the result of a double rhyme, starting with the original rough synonym \"arse\", which is rhymed with \"bottle and glass\", leading to \"bottle\". \"Bottle\" was then rhymed with \"Aristotle\" and truncated to \"Aris\".",
"title": "Examples"
},
{
"paragraph_id": 5,
"text": "Ghil'ad Zuckermann, a linguist and revivalist, has proposed a distinction between rhyming slang based on sound only, and phono-semantic rhyming slang, which includes a semantic link between the slang expression and its referent (the thing it refers to). An example of rhyming slang based only on sound is the Cockney \"tea leaf\" (thief). An example of phono-semantic rhyming slang is the Cockney \"sorrowful tale\" ((three months in) jail), in which case the person coining the slang term sees a semantic link, sometimes jocular, between the Cockney expression and its referent.",
"title": "Examples"
},
{
"paragraph_id": 6,
"text": "The use of rhyming slang has spread beyond the purely dialectal and some examples are to be found in the mainstream British English lexicon, although many users may be unaware of the origin of those words.",
"title": "Examples"
},
{
"paragraph_id": 7,
"text": "Most of the words changed by this process are nouns, but a few are adjectival, e.g., \"bales\" of cotton (rotten), or the adjectival phrase \"on one's tod\" for \"on one's own\", after Tod Sloan, a famous jockey.",
"title": "Examples"
},
{
"paragraph_id": 8,
"text": "Rhyming slang is believed to have originated in the mid-19th century in the East End of London, with several sources suggesting some time in the 1840s. The Flash Dictionary of unknown authorship, published in 1921 by Smeeton (48mo), contains a few rhymes. John Camden Hotten's 1859 Dictionary of Modern Slang, Cant, and Vulgar Words likewise states that it originated in the 1840s (\"about twelve or fifteen years ago\"), but with \"chaunters\" and \"patterers\" in the Seven Dials area of London. Hotten's Dictionary included the first known \"Glossary of the Rhyming Slang\", which included later mainstays such as \"frog and toad\" (the main road) and \"apples and pears\" (stairs), as well as many more obscure examples, e.g. \"Battle of the Nile\" (a tile, a vulgar term for a hat), \"Duke of York\" (take a walk), and \"Top of Rome\" (home).",
"title": "History"
},
{
"paragraph_id": 9,
"text": "It remains a matter of speculation exactly how rhyming slang originated, for example, as a linguistic game among friends or as a cryptolect developed intentionally to confuse non-locals. If deliberate, it may also have been used to maintain a sense of community, or to allow traders to talk amongst themselves in marketplaces to facilitate collusion, without customers knowing what they were saying, or by criminals to confuse the police (see thieves' cant).",
"title": "History"
},
{
"paragraph_id": 10,
"text": "The academic, lexicographer and radio personality Terence Dolan has suggested that rhyming slang was invented by Irish immigrants to London \"so the actual English wouldn't understand what they were talking about.\"",
"title": "History"
},
{
"paragraph_id": 11,
"text": "Many examples of rhyming slang are based on locations in London, such as \"Peckham Rye\", meaning \"tie\", which dates from the late nineteenth century; \"Hampstead Heath\", meaning \"teeth\" (usually as \"Hampsteads\"), which was first recorded in 1887; and \"barnet\" (Barnet Fair), meaning \"hair\", which dates from the 1850s.",
"title": "Development"
},
{
"paragraph_id": 12,
"text": "In the 20th century, rhyming slang began to be based on the names of celebrities — Gregory Peck (neck; cheque), Ruby Murray [as Ruby] (curry), Alan Whicker [as \"Alan Whickers\"] (knickers), Puff Daddy (caddy), Max Miller (pillow [pronounced /ˈpilə/]), Meryl Streep (cheap), Nat King Cole (\"dole\"), Britney Spears (beers, tears), Henry Halls (balls) — and after pop culture references — Captain Kirk (work), Pop Goes the Weasel (diesel), Mona Lisa (pizza), Mickey Mouse (Scouse), Wallace and Gromit (vomit), Brady Bunch (lunch), Bugs Bunny (money), Scooby-Doo (clue), Winnie the Pooh (shoe), and Schindler's List (pissed). Some words have numerous definitions, such as dead (Father Ted, \"gone to bed\", brown bread), door (Roger Moore, Andrea Corr, George Bernard Shaw, Rory O'Moore), cocaine (Kurt Cobain; [as \"Charlie\"] Bob Marley, Boutros Boutros-Ghali, Gianluca Vialli, oats and barley; [as \"line\"] Patsy Cline; [as \"powder\"] Niki Lauda), flares (\"Lionel Blairs\", \"Tony Blairs\", \"Rupert Bears\", \"Dan Dares\"), etc.",
"title": "Development"
},
{
"paragraph_id": 13,
"text": "Many examples have passed into common usage. Some substitutions have become relatively widespread in England in their contracted form. \"To have a butcher's\", meaning to have a look, originates from \"butcher's hook\", an S-shaped hook used by butchers to hang up meat, and dates from the late nineteenth century but has existed independently in general use from around the 1930s simply as \"butchers\". Similarly, \"use your loaf\", meaning \"use your head\", derives from \"loaf of bread\" and also dates from the late nineteenth century but came into independent use in the 1930s.",
"title": "Development"
},
{
"paragraph_id": 14,
"text": "Conversely usages have lapsed, or been usurped (\"Hounslow Heath\" for teeth, was replaced by \"Hampsteads\" from the heath of the same name, starting c. 1887).",
"title": "Development"
},
{
"paragraph_id": 15,
"text": "In some cases, false etymologies exist. For example, the term \"barney\" has been used to mean an altercation or fight since the late nineteenth century, although without a clear derivation. In the 2001 feature film Ocean's Eleven, the explanation for the term is that it derives from Barney Rubble, the name of a cartoon character from the Flintstones television program many decades later in origin.",
"title": "Development"
},
{
"paragraph_id": 16,
"text": "Rhyming slang is used mainly in London in England but can to some degree be understood across the country. Some constructions, however, rely on particular regional accents for the rhymes to work. For instance, the term \"Charing Cross\" (a place in London), used to mean \"horse\" since the mid-nineteenth century, does not work for a speaker without the lot–cloth split, common in London at that time but not nowadays. A similar example is \"Joanna\" meaning \"piano\", which is based on the pronunciation of \"piano\" as \"pianna\" /piˈænə/. Unique formations also exist in other parts of the United Kingdom, such as in the East Midlands, where the local accent has formed \"Derby Road\", which rhymes with \"cold\".",
"title": "Development"
},
{
"paragraph_id": 17,
"text": "Outside England, rhyming slang is used in many English-speaking countries in the Commonwealth of Nations, with local variations. For example, in Australian slang, the term for an English person is \"pommy\", which has been proposed as a rhyme on \"pomegranate\", pronounced \"Pummy Grant\", which rhymed with \"immigrant\".",
"title": "Development"
},
{
"paragraph_id": 18,
"text": "Rhyming slang is continually evolving, and new phrases are introduced all the time; new personalities replace old ones—pop culture introduces new words—as in \"I haven't a Scooby\" (from Scooby Doo, the eponymous cartoon dog of the cartoon series) meaning \"I haven't a clue\".",
"title": "Development"
},
{
"paragraph_id": 19,
"text": "Rhyming slang is often used as a substitute for words regarded as taboo, often to the extent that the association with the taboo word becomes unknown over time. \"Berk\" (often used to mean \"foolish person\") originates from the most famous of all fox hunts, the \"Berkeley Hunt\" meaning \"cunt\"; \"cobblers\" (often used in the context \"what you said is rubbish\") originates from \"cobbler's awls\", meaning \"balls\" (as in testicles); and \"hampton\" (usually \"'ampton\") meaning \"prick\" (as in penis) originates from \"Hampton Wick\" (a place in London) – the second part \"wick\" also entered common usage as \"he gets on my wick\" (he is an annoying person).",
"title": "Development"
},
{
"paragraph_id": 20,
"text": "Lesser taboo terms include \"pony and trap\" for \"crap\" (as in defecate, but often used to denote nonsense or low quality); to blow a raspberry (rude sound of derision) from raspberry tart for \"fart\"; \"D'Oyly Carte\" (an opera company) for \"fart\"; \"Jimmy Riddle\" (an American country musician) for \"piddle\" (as in urinate), \"J. Arthur Rank\" (a film mogul), \"Sherman tank\", \"Jodrell Bank\" or \"ham shank\" for \"wank\", \"Bristol Cities\" (contracted to 'Bristols') for \"titties\", etc. \"Taking the Mick\" or \"taking the Mickey\" is thought to be a rhyming slang form of \"taking the piss\", where \"Mick\" came from \"Mickey Bliss\".",
"title": "Development"
},
{
"paragraph_id": 21,
"text": "In December 2004 Joe Pasquale, winner of the fourth series of ITV's I'm a Celebrity... Get Me Out of Here!, became well known for his frequent use of the term \"Jacobs\", for Jacob's Cream Crackers, a rhyming slang term for knackers i.e. testicles.",
"title": "Development"
},
{
"paragraph_id": 22,
"text": "Rhyming slang has been widely used in popular culture including film, television, music, literature, sport and degree classification.",
"title": "In popular culture"
},
{
"paragraph_id": 23,
"text": "In the British undergraduate degree classification system a first class honours degree is known as a \"Geoff Hurst\" (First) after the English 1966 World Cup footballer. An upper second class degree (a.k.a. a \"2:1\") is called an \"Attila the Hun\", and a lower second class (\"2:2\") a \"Desmond Tutu\", while a third class degree is known as a \"Thora Hird\" or \"Douglas Hurd\".",
"title": "In popular culture"
},
{
"paragraph_id": 24,
"text": "Cary Grant's character teaches rhyming slang to his female companion in Mr. Lucky (1943), describing it as 'Australian rhyming slang'. Rhyming slang is also used and described in a scene of the 1967 film To Sir, with Love starring Sidney Poitier, where the English students tell their foreign teacher that the slang is a drag and something for old people. The closing song of the 1969 crime caper, The Italian Job, (\"Getta Bloomin' Move On\" a.k.a. \"The Self Preservation Society\") contains many slang terms.",
"title": "In popular culture"
},
{
"paragraph_id": 25,
"text": "Rhyming slang has been used to lend authenticity to an East End setting. Examples include Lock, Stock and Two Smoking Barrels (1998) (wherein the slang is translated via subtitles in one scene); The Limey (1999); Sexy Beast (2000); Snatch (2000); Ocean's Eleven (2001); and Austin Powers in Goldmember (2002); It's All Gone Pete Tong (2004), after BBC radio disc jockey Pete Tong whose name is used in this context as rhyming slang for \"wrong\"; Green Street Hooligans (2005). In Margin Call (2011), Will Emerson, played by London-born actor Paul Bettany, asks a friend on the telephone, \"How's the trouble and strife?\" (\"wife\").",
"title": "In popular culture"
},
{
"paragraph_id": 26,
"text": "Cockneys vs Zombies (2012) mocked the genesis of rhyming slang terms when a Cockney character calls zombies \"Trafalgars\" to even his Cockney fellows' puzzlement; he then explains it thus: \"Trafalgar square – fox and hare – hairy Greek – five day week – weak and feeble – pins and needles – needle and stitch – Abercrombie and Fitch – Abercrombie: zombie\".",
"title": "In popular culture"
},
{
"paragraph_id": 27,
"text": "The live-action Disney film Mary Poppins Returns song \"Trip A Little Light Fantastic\" involves Cockney rhyming slang in part of its lyrics, and is primarily spoken by the London lamplighters.",
"title": "In popular culture"
},
{
"paragraph_id": 28,
"text": "In the animated superhero film Spider-Man: Across the Spider-Verse (2023), character Spider-Punk, a Camden native, is heard saying: \"I haven’t got a scooby\" (\"clue\").",
"title": "In popular culture"
},
{
"paragraph_id": 29,
"text": "Slang had a resurgence of popular interest in Britain beginning in the 1970s, resulting from its use in a number of London-based television programmes such as Steptoe and Son (1970–74); and Not On Your Nellie (1974–75), starring Hylda Baker as Nellie Pickersgill, alludes to the phrase \"not on your Nellie Duff\", rhyming slang for \"not on your puff\" i.e. not on your life. Similarly, The Sweeney (1975–78) alludes to the phrase \"Sweeney Todd\" for \"Flying Squad\", a rapid response unit of London's Metropolitan Police. In The Fall and Rise of Reginald Perrin (1976–79), a comic twist was added to rhyming slang by way of spurious and fabricated examples which a young man had laboriously attempted to explain to his father (e.g. 'dustbins' meaning 'children', as in 'dustbin lids'='kids'; 'Teds' being 'Ted Heath' and thus 'teeth'; and even 'Chitty Chitty' being 'Chitty Chitty Bang Bang', and thus 'rhyming slang'...). It was also featured in an episode of The Good Life in the first season (1975) where Tom and Barbara purchase a wood-burning range from a junk trader called Sam, who litters his language with phony slang in hopes of getting higher payment. He comes up with a fake story as to the origin of Cockney rhyming slang and is caught out rather quickly. In The Jeffersons season 2 (1976) episode \"The Breakup: Part 2\", Mr. Bentley explains Cockney rhyming slang to George Jefferson, in that \"whistle and flute\" means \"suit\", \"apples and pears\" means \"stairs\", \"plates of meat\" means \"feet\".",
"title": "In popular culture"
},
{
"paragraph_id": 30,
"text": "The use of rhyming slang was also prominent in Mind Your Language (1977–79), Citizen Smith (1977–80), Minder (1979–94), Only Fools and Horses (1981–91), and EastEnders (1985–). Minder could be quite uncompromising in its use of obscure forms without any clarification. Thus the non-Cockney viewer was obliged to deduce that, say, \"iron\" was \"male homosexual\" ('iron'='iron hoof'='poof'). One episode in Series 5 of Steptoe and Son was entitled \"Any Old Iron\", for the same reason, when Albert thinks that Harold is 'on the turn'. Variations of rhyming slang were also used in sitcom Birds of a Feather, by main characters Sharon and Tracey, often to the confusion of character, Dorian Green, who was unfamiliar with the terms.",
"title": "In popular culture"
},
{
"paragraph_id": 31,
"text": "One early US show to regularly feature rhyming slang was the Saturday morning children's show The Bugaloos (1970–72), with the character of Harmony (Wayne Laryea) often incorporating it in his dialogue.",
"title": "In popular culture"
},
{
"paragraph_id": 32,
"text": "In popular music, Spike Jones and his City Slickers recorded \"So 'Elp Me\", based on rhyming slang, in 1950. The 1967 Kinks song \"Harry Rag\" was based on the usage of the name Harry Wragg as rhyming slang for \"fag\" (i.e. a cigarette). The idiom made a brief appearance in the UK-based DJ reggae music of the 1980s in the hit \"Cockney Translation\" by Smiley Culture of South London; this was followed a couple of years later by Domenick and Peter Metro's \"Cockney and Yardie\". London-based artists such as Audio Bullys and Chas & Dave (and others from elsewhere in the UK, such as The Streets, who are from Birmingham) frequently use rhyming slang in their songs.",
"title": "In popular culture"
},
{
"paragraph_id": 33,
"text": "British-born M.C. MF Doom released an ode entitled \"Rhymin' Slang\", after settling in the UK in 2010. The track was released on the 2012 album JJ Doom album Keys to the Kuffs.",
"title": "In popular culture"
},
{
"paragraph_id": 34,
"text": "Another contributor was Lonnie Donegan who had a song called \"My Old Man's a Dustman\". In it he says his father has trouble putting on his boots \"He's got such a job to pull them up that he calls them daisy roots\".",
"title": "In popular culture"
},
{
"paragraph_id": 35,
"text": "In modern literature, Cockney rhyming slang is used frequently in the novels and short stories of Kim Newman, for instance in the short story collections \"The Man from the Diogenes Club\" (2006) and \"Secret Files of the Diogenes Club\" (2007), where it is explained at the end of each book.",
"title": "In popular culture"
},
{
"paragraph_id": 36,
"text": "It is also parodied in Going Postal by Terry Pratchett, which features a geriatric Junior Postman by the name of Tolliver Groat, a speaker of 'Dimwell Arrhythmic Rhyming Slang', the only rhyming slang on the Disc which does not actually rhyme. Thus, a wig is a 'prunes', from 'syrup of prunes', an obvious parody of the Cockney syrup from syrup of figs – wig. There are numerous other parodies, though it has been pointed out that the result is even more impenetrable than a conventional rhyming slang and so may not be quite so illogical as it seems, given the assumed purpose of rhyming slang as a means of communicating in a manner unintelligible to all but the initiated.",
"title": "In popular culture"
},
{
"paragraph_id": 37,
"text": "In the book Goodbye to All That by Robert Graves, a beer is a \"broken square\" as Welch Fusiliers officers walk into a pub and order broken squares when they see men from the Black Watch. The Black Watch had a minor blemish on its record of otherwise unbroken squares. Fistfights ensued.",
"title": "In popular culture"
},
{
"paragraph_id": 38,
"text": "In Dashiell Hammett's The Dain Curse, the protagonist exhibits familiarity with Cockney rhyming slang. referring to gambling at dice with the phrase \"rats and mice.\"",
"title": "In popular culture"
},
{
"paragraph_id": 39,
"text": "Cockney rhyming slang is one of the main influences for the dialect spoken in A Clockwork Orange (1962). The author of the novel, Anthony Burgess, also believed the phrase \"as queer as a clockwork orange\" was Cockney slang having heard it in a London pub in 1945, and subsequently named it in the title of his book.",
"title": "In popular culture"
},
{
"paragraph_id": 40,
"text": "In Scottish football, a number of clubs have nicknames taken from rhyming slang. Partick Thistle are known as the \"Harry Rags\", which is taken from the rhyming slang of their 'official' nickname \"the jags\". Rangers are known as the \"Teddy Bears\", which comes from the rhyming slang for \"the Gers\" (shortened version of Ran-gers). Heart of Midlothian are known as the \"Jambos\", which comes from \"Jam Tarts\" which is the rhyming slang for \"Hearts\" which is the common abbreviation of the club's name. Hibernian are also referred to as \"The Cabbage\" which comes from Cabbage and Ribs being the rhyming slang for Hibs.",
"title": "In popular culture"
},
{
"paragraph_id": 41,
"text": "In rugby league, \"meat pie\" is used for try.",
"title": "In popular culture"
}
] | Rhyming slang is a form of slang word construction in the English language. It is especially prevalent among Cockneys in England, and was first used in the early 19th century in the East End of London; hence its alternative name, Cockney rhyming slang. In the US, especially the criminal underworld of the West Coast between 1880 and 1920, rhyming slang has sometimes been known as Australian slang. The construction of rhyming slang involves replacing a common word with a phrase of two or more words, the last of which rhymes with the original word; then, in almost all cases, omitting, from the end of the phrase, the secondary rhyming word, making the origin and meaning of the phrase elusive to listeners not in the know. | 2001-11-28T15:30:03Z | 2023-12-11T13:35:37Z | [
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7,265 | Canchim | The Canchim is a breed of beef cattle developed in Central Brazil by crossing European Charolais cattle with Indubrazil cattle already kept in Brazil where Asian Zebu type cattle are best suited to the tropical conditions. When compared with Zebu bulls, Canchim bulls produce the same number of calves, but heavier and of superior quality. Compared to European breeds, the Canchim bull produces calves with the same weight but in larger numbers. The fast-growing progeny, from crossbred zebu cows with Canchim bulls, can be slaughtered at 18 months old from feedlots after weaning, up to 24 months old from feedlots after grazing and at 30 months from grazing on the range.
Zebu cattle (Bos Indicus), introduced to Brazil in the last century, were extensively crossbred with herds of native cattle. The Indian breed, well known for its ability to survive in the tropics, adapted quickly to Brazil, and soon populated large areas, considerably improving Brazilian beef cattle breeding. Zebu cattle were however found to be inferior to the European breeds in growth rate and yield of meat. It became clear that the beef cattle population required genetic improvement. Simply placing European beef cattle (Bos Taurus), highly productive in temperate climates, in Central Brazil, would not produce good results, due to their inability to adapt to a tropical environment. Besides the climate, other factors such as the high occurrence of parasites, diseases and the very low nutritional value of the native forage were problems.
The European breed used in the formation of Canchim cattle was Charolais. In 1922 the Ministry of Agriculture imported Charolais cattle to the State of Goias, where they remained till 1936, when they were transferred to São Carlos in the State of São Paulo, to the Canchim Farm of the Government Research Station, EMBRAPA. From this herd originated the dams and sires utilised in the program of crossbreeding.
The main Zebu breed which contributed to the formation to the Canchim was the Indubrazil, although Guzerá and Nelore cattle were also used. Preference was given to the Indubrasil breed, due to the ease of obtaining large herds at reasonable prices, which would have been difficult with Gir, Nelore or Guzerá.
The alternative crossbreeding programs initiated in 1940 by Dr. Antonio Teixeira Viana had the objective of obtaining first, crossbreeds 5/8 Charolais and 3/8 Zebu and second, 3/8 Charolais x 5/8 Zebu, to evaluate which of the two was the most successful. The total number of Zebu cows utilized to produce the half-breeds was 368, of which 292 were Indubrasil, 44 Guzerá and 32 Nelore. All the animals produced were reared exclusively on the range. Control of parasites was done every 15 days and the animals were weighed at birth and monthly. The females were weighed up to 30 months and the males up to 40 months. The data collected during various years of work, permitted an evaluation of the various degrees of crossbreeding. The conclusion was that the 5/8 Charolais and 3/8 Zebu was the most suitable, presenting an excellent frame for meat, precocious, resistance to heat and parasites, and a uniform coat. The first crossbred animals, 5/8 Charolais and 3/8 Zebu, were born in 1953. Thus was born a new type of beef cattle for Central Brazil, with the name CANCHIM, derived from the name of a tree very common in the region where the breed was developed. It was not until 1971 that the Brazilian Association of Canchim Cattle Breeders (ABCCAN) was formed, and on 11 November 1972 the Herd Book was initiated. On 18 May 1983 the Ministry of Agriculture, recognized Canchim type cattle as a Breed.
The Canchim breed, being a synthetic breed, permits breeders, in the development of new crossbreeding systems, to use the breeds used to form the Canchim breed, besides the breed itself, in its development.
There are many Canchim breeders forming new blood lines. Today the Nelore breed totally dominates the Zebu breed in the formation of Canchim. American and French Charolais semen, from carefully selected bulls is also used and recommended by the ABCCAN to form new bloodlines. | [
{
"paragraph_id": 0,
"text": "The Canchim is a breed of beef cattle developed in Central Brazil by crossing European Charolais cattle with Indubrazil cattle already kept in Brazil where Asian Zebu type cattle are best suited to the tropical conditions. When compared with Zebu bulls, Canchim bulls produce the same number of calves, but heavier and of superior quality. Compared to European breeds, the Canchim bull produces calves with the same weight but in larger numbers. The fast-growing progeny, from crossbred zebu cows with Canchim bulls, can be slaughtered at 18 months old from feedlots after weaning, up to 24 months old from feedlots after grazing and at 30 months from grazing on the range.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Zebu cattle (Bos Indicus), introduced to Brazil in the last century, were extensively crossbred with herds of native cattle. The Indian breed, well known for its ability to survive in the tropics, adapted quickly to Brazil, and soon populated large areas, considerably improving Brazilian beef cattle breeding. Zebu cattle were however found to be inferior to the European breeds in growth rate and yield of meat. It became clear that the beef cattle population required genetic improvement. Simply placing European beef cattle (Bos Taurus), highly productive in temperate climates, in Central Brazil, would not produce good results, due to their inability to adapt to a tropical environment. Besides the climate, other factors such as the high occurrence of parasites, diseases and the very low nutritional value of the native forage were problems.",
"title": "Origin"
},
{
"paragraph_id": 2,
"text": "The European breed used in the formation of Canchim cattle was Charolais. In 1922 the Ministry of Agriculture imported Charolais cattle to the State of Goias, where they remained till 1936, when they were transferred to São Carlos in the State of São Paulo, to the Canchim Farm of the Government Research Station, EMBRAPA. From this herd originated the dams and sires utilised in the program of crossbreeding.",
"title": "Formation of the breed"
},
{
"paragraph_id": 3,
"text": "The main Zebu breed which contributed to the formation to the Canchim was the Indubrazil, although Guzerá and Nelore cattle were also used. Preference was given to the Indubrasil breed, due to the ease of obtaining large herds at reasonable prices, which would have been difficult with Gir, Nelore or Guzerá.",
"title": "Formation of the breed"
},
{
"paragraph_id": 4,
"text": "The alternative crossbreeding programs initiated in 1940 by Dr. Antonio Teixeira Viana had the objective of obtaining first, crossbreeds 5/8 Charolais and 3/8 Zebu and second, 3/8 Charolais x 5/8 Zebu, to evaluate which of the two was the most successful. The total number of Zebu cows utilized to produce the half-breeds was 368, of which 292 were Indubrasil, 44 Guzerá and 32 Nelore. All the animals produced were reared exclusively on the range. Control of parasites was done every 15 days and the animals were weighed at birth and monthly. The females were weighed up to 30 months and the males up to 40 months. The data collected during various years of work, permitted an evaluation of the various degrees of crossbreeding. The conclusion was that the 5/8 Charolais and 3/8 Zebu was the most suitable, presenting an excellent frame for meat, precocious, resistance to heat and parasites, and a uniform coat. The first crossbred animals, 5/8 Charolais and 3/8 Zebu, were born in 1953. Thus was born a new type of beef cattle for Central Brazil, with the name CANCHIM, derived from the name of a tree very common in the region where the breed was developed. It was not until 1971 that the Brazilian Association of Canchim Cattle Breeders (ABCCAN) was formed, and on 11 November 1972 the Herd Book was initiated. On 18 May 1983 the Ministry of Agriculture, recognized Canchim type cattle as a Breed.",
"title": "Formation of the breed"
},
{
"paragraph_id": 5,
"text": "The Canchim breed, being a synthetic breed, permits breeders, in the development of new crossbreeding systems, to use the breeds used to form the Canchim breed, besides the breed itself, in its development.",
"title": "New bloodlines"
},
{
"paragraph_id": 6,
"text": "There are many Canchim breeders forming new blood lines. Today the Nelore breed totally dominates the Zebu breed in the formation of Canchim. American and French Charolais semen, from carefully selected bulls is also used and recommended by the ABCCAN to form new bloodlines.",
"title": "New bloodlines"
}
] | The Canchim is a breed of beef cattle developed in Central Brazil by crossing European Charolais cattle with Indubrazil cattle already kept in Brazil where Asian Zebu type cattle are best suited to the tropical conditions. When compared with Zebu bulls, Canchim bulls produce the same number of calves, but heavier and of superior quality. Compared to European breeds, the Canchim bull produces calves with the same weight but in larger numbers. The fast-growing progeny, from crossbred zebu cows with Canchim bulls, can be slaughtered at 18 months old from feedlots after weaning, up to 24 months old from feedlots after grazing and at 30 months from grazing on the range. | 2023-06-10T04:54:46Z | [
"Template:Short description",
"Template:When",
"Template:Citation needed",
"Template:Reflist",
"Template:Cite web",
"Template:Cattle breeds of Brazil"
] | https://en.wikipedia.org/wiki/Canchim |
|
7,271 | Communist Party of the Soviet Union | The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and All-Union Communist Party (Bolsheviks), sometimes referred to as the Soviet Communist Party (SCP), and formerly known as the Bolshevik Party, was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism-Leninism.
The party started in 1898 as the Russian Social Democratic Labour Party. In 1903, that party split into a Menshevik (minority) and Bolshevik (majority) faction; the latter, led by Vladimir Lenin, is the direct ancestor of the CPSU and is the party that seized power in the October Revolution of 1917. Its activities were suspended on Soviet territory 74 years later, on 29 August 1991, soon after a failed coup d'état by conservative CPSU leaders against the reforming Soviet president and party general secretary Mikhail Gorbachev.
The CPSU was a communist party based on democratic centralism. This principle, conceived by Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. The highest body within the CPSU was the Party Congress, which convened every five years. When the Congress was not in session, the Central Committee was the highest body. Because the Central Committee met twice a year, most day-to-day duties and responsibilities were vested in the Politburo, (previously the Presidium), the Secretariat and the Orgburo (until 1952). The party leader was the head of government and held the office of either General Secretary, Premier or head of state, or two of the three offices concurrently, but never all three at the same time. The party leader was the de facto chairman of the CPSU Politburo and chief executive of the Soviet Union. The tension between the party and the state (Council of Ministers of the Soviet Union) for the shifting focus of power was never formally resolved.
After the founding of the Soviet Union in 1922, Lenin had introduced a mixed economy, commonly referred to as the New Economic Policy, which allowed for capitalist practices to resume under the Communist Party dictation in order to develop the necessary conditions for socialism to become a practical pursuit in the economically undeveloped country. In 1929, as Joseph Stalin became the leader of the party, Marxism–Leninism, a fusion of the original ideas of German philosopher and economic theorist Karl Marx, and Lenin, became formalized as the party's guiding ideology and would remain so throughout the rest of its existence. The party pursued state socialism, under which all industries were nationalized, and a command economy was implemented. After recovering from the Second World War, reforms were implemented which decentralized economic planning and liberalized Soviet society in general under Nikita Khrushchev. By 1980, various factors, including the continuing Cold War, and ongoing nuclear arms race with the United States and other Western European powers and unaddressed inefficiencies in the economy, led to stagnant economic growth under Alexei Kosygin, and further with Leonid Brezhnev and growing disillusionment. After the younger, vigorous Mikhail Gorbachev assumed leadership in 1985 (following two short-term elderly leaders, Yuri Andropov and Konstantin Chernenko, who quickly died in succession), rapid steps were taken to transform the tottering Soviet economic system in the direction of a market economy once again. Gorbachev and his allies envisioned the introduction of an economy similar to Lenin's earlier New Economic Policy through a program of "perestroika", or restructuring, but their reforms, along with the institution of free multi-candidate elections led to a decline in the party's power, and after the dissolution of the Soviet Union, the banning of the party by later last RSFSR President Boris Yeltsin and subsequent first President of an evolving democratic and free-market economy of the successor Russian Federation.
A number of causes contributed to CPSU's loss of control and the dissolution of the Soviet Union during the early 1990s. Some historians have written that Gorbachev's policy of "glasnost" (political openness) was the root cause, noting that it weakened the party's control over society. Gorbachev maintained that perestroika without glasnost was doomed to failure anyway. Others have blamed the economic stagnation and subsequent loss of faith by the general populace in communist ideology. In the final years of the CPSU's existence, the Communist Parties of the federal subjects of Russia were united into the Communist Party of the Russian Soviet Federative Socialist Republic (RSFSR). After the CPSU's demise, the Communist Parties of the Union Republics became independent and underwent various separate paths of reform. In Russia, the Communist Party of the Russian Federation emerged and has been regarded as the inheritor of the CPSU's old Bolshevik legacy into the present day.
The origin of the CPSU was in the Bolshevik faction of the Russian Social Democratic Labour Party (RSDLP). This faction arose out of the split between followers of Julius Martov and Vladimir Lenin in August 1903 at the Party's second conference. Martov's followers were called the Mensheviks (which means minority in Russian); and Lenin's, the Bolsheviks (majority). (The two factions were in fact of fairly equal numerical size.) The split became more formalized in 1914, when the factions became named the Russian Social Democratic Labour Party (Bolsheviks), and Russian Social Democratic Labour Party (Mensheviks). Prior to the February Revolution, the first phase of the Russian Revolutions of 1917, the party worked underground as organized anti-Tsarist groups. By the time of the revolution, many of the party's central leaders, including Lenin, were in exile.
With Emperor Nicholas II (1868–1918, reigned 1894–1917), deposed in February 1917, a republic was established and administered by a provisional government, which was largely dominated by the interests of the military, former nobility, major capitalists business owners and democratic socialists. Alongside it, grassroots general assemblies spontaneously formed, called soviets, and a dual-power structure between the soviets and the provisional government was in place until such a time that their differences would be reconciled in a post-provisional government. Lenin was at this time in exile in Switzerland where he, with other dissidents in exile, managed to arrange with the Imperial German government safe passage through Germany in a sealed train back to Russia through the continent amidst the ongoing World War. In April, Lenin arrived in Petrograd (renamed former St. Petersburg) and condemned the provisional government, calling for the advancement of the revolution towards the transformation of the ongoing war into a war of the working class against capitalism. The rebellion proved not yet to be over, as tensions between the social forces aligned with the soviets (councils) and those with the provisional government now led by Alexander Kerensky (1881–1970, in power 1917), came into explosive tensions during that summer.
The Bolsheviks had rapidly increased their political presence from May onward through the popularity of their program, notably calling for an immediate end to the war, land reform for the peasants, and restoring food allocation to the urban population. This program was translated to the masses through simple slogans that patiently explained their solution to each crisis the revolution created. Up to July, these policies were disseminated through 41 publications, Pravda being the main paper, with a readership of 320,000. This was roughly halved after the repression of the Bolsheviks following the July Days demonstrations so that even by the end of August, the principal paper of the Bolsheviks had a print run of only 50,000 copies. Despite this, their ideas gained them increasing popularity in elections to the soviets.
The factions within the soviets became increasingly polarized in the later summer after armed demonstrations by soldiers at the call of the Bolsheviks and an attempted military coup by commanding Gen. Lavr Kornilov to eliminate the socialists from the provisional government. As the general consensus within the soviets moved leftward, less militant forces began to abandon them, leaving the Bolsheviks in a stronger position. By October, the Bolsheviks were demanding the full transfer of power to the soviets and for total rejection of the Kerensky led provisional government's legitimacy. The provisional government, insistent on maintaining the universally despised war effort on the Eastern Front because of treaty ties with its Allies and fears of Imperial German victory, had become socially isolated and had no enthusiastic support on the streets. On 7 November (25 October, old style), the Bolsheviks led an armed insurrection, which overthrew the Kerensky provisional government and left the soviets as the sole governing force in Russia.
In the aftermath of the October Revolution, the soviets united federally and the Russian Socialist Federative Soviet Republic, the world's first constitutionally socialist state, was established. The Bolsheviks were the majority within the soviets and began to fulfill their campaign promises by signing a damaging peace to end the war with the Germans in the Treaty of Brest-Litovsk and transferring estates and imperial lands to workers' and peasants' soviets. In this context, in 1918, RSDLP(b) became All-Russian Communist Party (bolsheviks). Outside of Russia, social-democrats who supported the Soviet government began to identify as communists, while those who opposed it retained the social-democratic label.
In 1921, as the Civil War was drawing to a close, Lenin proposed the New Economic Policy (NEP), a system of state capitalism that started the process of industrialization and post-war recovery. The NEP ended a brief period of intense rationing called "war communism" and began a period of a market economy under Communist dictation. The Bolsheviks believed at this time that Russia, being among the most economically undeveloped and socially backward countries in Europe, had not yet reached the necessary conditions of development for socialism to become a practical pursuit and that this would have to wait for such conditions to arrive under capitalist development as had been achieved in more advanced countries such as England and Germany. On 30 December 1922, the Russian SFSR joined former territories of the Russian Empire to form the Union of Soviet Socialist Republics (USSR), of which Lenin was elected leader. On 9 March 1923, Lenin suffered a stroke, which incapacitated him and effectively ended his role in government. He died on 21 January 1924, only thirteen months after the founding of the Soviet Union, of which he would become regarded as the founding father.
After Lenin's death, a power struggle ensued between Joseph Stalin, the party's General Secretary, and Leon Trotsky, the Minister of Defence, each with highly contrasting visions for the future direction of the country. Trotsky sought to implement a policy of permanent revolution, which was predicated on the notion that the Soviet Union would not be able to survive in a socialist character when surrounded by hostile governments and therefore concluded that it was necessary to actively support similar revolutions in the more advanced capitalist countries. Stalin, however, argued that such a foreign policy would not be feasible with the capabilities then possessed by the Soviet Union and that it would invite the country's destruction by engaging in armed conflict. Rather, Stalin argued that the Soviet Union should, in the meantime, pursue peaceful coexistence and invite foreign investment in order to develop the country's economy and build socialism in one country.
Ultimately, Stalin gained the greatest support within the party, and Trotsky, who was increasingly viewed as a collaborator with outside forces in an effort to depose Stalin, was isolated and subsequently expelled from the party and exiled from the country in 1928. Stalin's policies henceforth would later become collectively known as Stalinism. In 1925, the name of the party was changed to the All-Union Communist Party (Bolsheviks), reflecting that the republics outside of Russia proper were no longer part of an all-encompassing Russian state. The acronym was usually transliterated as VKP(b), or sometimes VCP(b). Stalin sought to formalize the party's ideological outlook into a philosophical hybrid of the original ideas of Lenin with orthodox Marxism into what would be called Marxism–Leninism. Stalin's position as General Secretary became the top executive position within the party, giving Stalin significant authority over party and state policy.
By the end of the 1920s, diplomatic relations with Western countries were deteriorating to the point that there was a growing fear of another allied attack on the Soviet Union. Within the country, the conditions of the NEP had enabled growing inequalities between increasingly wealthy strata and the remaining poor. The combination of these tensions led the party leadership to conclude that it was necessary for the government's survival to pursue a new policy that would centralize economic activity and accelerate industrialization. To do this, the first five-year plan was implemented in 1928. The plan doubled the industrial workforce, proletarianizing many of the peasants by removing them from their land and assembling them into urban centers. Peasants who remained in agricultural work were also made to have a similarly proletarian relationship to their labor through the policies of collectivization, which turned feudal-style farms into collective farms which would be in a cooperative nature under the direction of the state. These two shifts changed the base of Soviet society towards a more working-class alignment. The plan was fulfilled ahead of schedule in 1932.
The success of industrialization in the Soviet Union led Western countries, such as the United States, to open diplomatic relations with the Soviet government. In 1933, after years of unsuccessful workers' revolutions (including a short-lived Bavarian Soviet Republic) and spiraling economic calamity, Adolf Hitler came to power in Germany, violently suppressing the revolutionary organizers and posing a direct threat to the Soviet Union that ideologically supported them. The threat of fascist sabotage and imminent attack greatly exacerbated the already existing tensions within the Soviet Union and the Communist Party. A wave of paranoia overtook Stalin and the party leadership and spread through Soviet society. Seeing potential enemies everywhere, leaders of the government security apparatuses began severe crackdowns known as the Great Purge. In total, hundreds of thousands of people, many of whom were posthumously recognized as innocent, were arrested and either sent to prison camps or executed. Also during this time, a campaign against religion was waged in which the Russian Orthodox Church, which had long been a political arm of Tsarism before the revolution, was ruthlessly repressed, organized religion was generally removed from public life and made into a completely private matter, with many churches, mosques and other shrines being repurposed or demolished.
The Soviet Union was the first to warn of the impending danger of invasion from Nazi Germany to the international community. The Western powers, however, remained committed to maintaining peace and avoiding another war breaking out, many considering the Soviet Union's warnings to be an unwanted provocation. After many unsuccessful attempts to create an anti-fascist alliance among the Western countries, including trying to rally international support for the Spanish Republic in its struggle against a nationalist military coup which received supported from Germany and Italy, in 1939 the Soviet Union signed a non-aggression pact with Germany, later jointly invading Poland to fulfil a secret protocol of the pact, as well as occupying the Baltic States, this pact would be broken in June 1941 when the German military invaded the Soviet Union in the largest land invasion in history, beginning the Great Patriotic War.
The Communist International was dissolved in 1943 after it was concluded that such an organization had failed to prevent the rise of fascism and the global war necessary to defeat it. After the 1945 Allied victory of World War II, the Party held to a doctrine of establishing socialist governments in the post-war occupied territories that would be administered by Communists loyal to Stalin's administration. The party also sought to expand its sphere of influence beyond the occupied territories, using proxy wars and espionage and providing training and funding to promote Communist elements abroad, leading to the establishment of the Cominform in 1947.
In 1949, the Communists emerged victorious in the Chinese Civil War, causing an extreme shift in the global balance of forces and greatly escalating tensions between the Communists and the Western powers, fueling the Cold War. In Europe, Yugoslavia, under the leadership of Josip Broz Tito, acquired the territory of Trieste, causing conflict both with the Western powers and with the Stalin administration who opposed such a provocative move. Furthermore, the Yugoslav Communists actively supported the Greek Communists during their civil war, further frustrating the Soviet government. These tensions led to a Tito–Stalin split, which marked the beginning of international sectarian division within the world communist movement.
After Stalin's death, Nikita Khrushchev rose to the top post by overcoming political adversaries, including Lavrentiy Beria and Georgy Malenkov, in a power struggle. In 1955, Khrushchev achieved the demotion of Malenkov and secured his own position as Soviet leader. Early in his rule and with the support of several members of the Presidium, Khrushchev initiated the Thaw, which effectively ended the Stalinist mass terror of the prior decades and reduced socio-economic oppression considerably. At the 20th Congress held in 1956, Khrushchev denounced Stalin's crimes, being careful to omit any reference to complicity by any sitting Presidium members. His economic policies, while bringing about improvements, were not enough to fix the fundamental problems of the Soviet economy. The standard of living for ordinary citizens did increase; 108 million people moved into new housing between 1956 and 1965.
Khrushchev's foreign policies led to the Sino-Soviet split, in part a consequence of his public denunciation of Stalin. Khrushchev improved relations with Josip Broz Tito's League of Communists of Yugoslavia but failed to establish the close, party-to-party relations that he wanted. While the Thaw reduced political oppression at home, it led to unintended consequences abroad, such as the Hungarian Revolution of 1956 and unrest in Poland, where the local citizenry now felt confident enough to rebel against Soviet control. Khrushchev also failed to improve Soviet relations with the West, partially because of a hawkish military stance. In the aftermath of the Cuban Missile Crisis, Khrushchev's position within the party was substantially weakened. Shortly before his eventual ousting, he tried to introduce economic reforms championed by Evsei Liberman, a Soviet economist, which tried to implement market mechanisms into the planned economy.
Khrushchev was ousted on 14 October 1964 in a Central Committee plenum that officially cited his inability to listen to others, his failure in consulting with the members of the Presidium, his establishment of a cult of personality, his economic mismanagement, and his anti-party reforms as the reasons he was no longer fit to remain as head of the party. He was succeeded in office by Leonid Brezhnev as First Secretary and Alexei Kosygin as Chairman of the Council of Ministers.
The Brezhnev era began with a rejection of Khrushchevism in virtually every arena except one: continued opposition to Stalinist methods of terror and political violence. Khrushchev's policies were criticized as voluntarism, and the Brezhnev period saw the rise of neo-Stalinism. While Stalin was never rehabilitated during this period, the most conservative journals in the country were allowed to highlight positive features of his rule.
At the 23rd Congress held in 1966, the names of the office of First Secretary and the body of the Presidium reverted to their original names: General Secretary and Politburo, respectively. At the start of his premiership, Kosygin experimented with economic reforms similar to those championed by Malenkov, including prioritizing light industry over heavy industry to increase the production of consumer goods. Similar reforms were introduced in Hungary under the name New Economic Mechanism; however, with the rise to power of Alexander Dubček in Czechoslovakia, who called for the establishment of "socialism with a human face", all non-conformist reform attempts in the Soviet Union were stopped.
During his rule, Brezhnev supported détente, a passive weakening of animosity with the West with the goal of improving political and economic relations. However, by the 25th Congress held in 1976, political, economic and social problems within the Soviet Union began to mount, and the Brezhnev administration found itself in an increasingly difficult position. The previous year, Brezhnev's health began to deteriorate. He became addicted to painkillers and needed to take increasingly more potent medications to attend official meetings. Because of the "trust in cadres" policy implemented by his administration, the CPSU leadership evolved into a gerontocracy. At the end of Brezhnev's rule, problems continued to amount; in 1979 he consented to the Soviet intervention in Afghanistan to save the embattled communist regime there and supported the oppression of the Solidarity movement in Poland. As problems grew at home and abroad, Brezhnev was increasingly ineffective in responding to the growing criticism of the Soviet Union by Western leaders, most prominently by US Presidents Jimmy Carter and Ronald Reagan, and UK Prime Minister Margaret Thatcher. The CPSU, which had wishfully interpreted the financial crisis of the 1970s as the beginning of the end of capitalism, found its country falling far behind the West in its economic development. Brezhnev died on 10 November 1982, and was succeeded by Yuri Andropov on 12 November.
Andropov, a staunch anti-Stalinist, chaired the KGB during most of Brezhnev's reign. He had appointed several reformers to leadership positions in the KGB, many of whom later became leading officials under Gorbachev. Andropov supported increased openness in the press, particularly regarding the challenges facing the Soviet Union. Andropov was in office briefly, but he appointed a number of reformers, including Yegor Ligachev, Nikolay Ryzhkov and Mikhail Gorbachev, to important positions. He also supported a crackdown on absenteeism and corruption. Andropov had intended to let Gorbachev succeed him in office, but Konstantin Chernenko and his supporters suppressed the paragraph in the letter which called for Gorbachev's elevation. Andropov died on 9 February 1984 and was succeeded by Chernenko. The elderly Cherneko was in poor health throughout his short leadership and was unable to consolidate power; effective control of the party organization remained with Gorbachev. Chernenko died on 10 March 1985 and was succeeded in office by Gorbachev the next day.
The Politburo did not want another elderly and frail leader after its previous three leaders, and elected Gorbachev as CPSU General Secretary on 11 March 1985, one day after Chernenko's death. When Gorbachev acceded to power, the Soviet Union was stagnating but was stable and might have continued largely unchanged into the 21st century if not for Gorbachev's reforms.
Gorbachev conducted a significant personnel reshuffling of the CPSU leadership, forcing old party conservatives out of office. In 1985 and early 1986 the new leadership of the party called for uskoreniye (Russian: ускоре́ние, lit. 'acceleration'). Gorbachev reinvigorated the party ideology, adding new concepts and updating older ones. Positive consequences of this included the allowance of "pluralism of thought" and a call for the establishment of "socialist pluralism" (literally, socialist democracy). Gorbachev introduced a policy of glasnost (Russian: гла́сность, meaning openness or transparency) in 1986, which led to a wave of unintended democratization. According to the British researcher of Russian affairs, Archie Brown, the democratization of the Soviet Union brought mixed blessings to Gorbachev; it helped him to weaken his conservative opponents within the party but brought out accumulated grievances which had been suppressed during the previous decades.
In reaction to these changes, a conservative movement gained momentum in 1987 in response to Boris Yeltsin's dismissal as First Secretary of the CPSU Moscow City Committee. On 13 March 1988, Nina Andreyeva, a university lecturer, wrote an article titled "I Cannot Forsake My Principles". The publication was planned to occur when both Gorbachev and his protege Alexander Yakovlev were visiting foreign countries. In their place, Yegor Ligachev led the party organization and told journalists that the article was "a benchmark for what we need in our ideology today". Upon Gorbachev's return, the article was discussed at length during a Politburo meeting; it was revealed that nearly half of its members were sympathetic to the letter and opposed further reforms which could weaken the party. The meeting lasted for two days, but on 5 April a Politburo resolution responded with a point-by-point rebuttal to Andreyeva's article.
Gorbachev convened the 19th Party Conference in June 1988. He criticized leading party conservatives—Ligachev, Andrei Gromyko and Mikhail Solomentsev. In turn, conservative delegates attacked Gorbachev and the reformers. According to Brown, there had not been as much open discussion and dissent at a party meeting since the early 1920s.
Despite the deep-seated opposition to further reform, the CPSU remained hierarchical; the conservatives acceded to Gorbachev's demands in deference to his position as the CPSU General Secretary. The 19th Conference approved the establishment of the Congress of People's Deputies (CPD) and allowed for contested elections between the CPSU and independent candidates. Other organized parties were not allowed. The CPD was elected in 1989; one-third of the seats were appointed by the CPSU and other public organizations to sustain the Soviet one-party state. The elections were democratic, but most elected CPD members opposed any more radical reform. The elections featured the highest electoral turnout in Russian history; no election before or since had a higher participation rate. An organized opposition was established within the legislature under the name Inter-Regional Group of Deputies by dissident Andrei Sakharov. An unintended consequence of these reforms was the increased anti-CPSU pressure; in March 1990, at a session of the Supreme Soviet of the Soviet Union, the party was forced to relinquish its political monopoly of power, in effect turning the Soviet Union into a liberal democracy.
The CPSU's demise began in March 1990, when state bodies eclipsed party elements in power. From then until the Soviet Union's disestablishment, Gorbachev ruled the country through the newly created post of President of the Soviet Union. Following this, the central party apparatus did not play a practical role in Soviet affairs. Gorbachev had become independent from the Politburo and faced few constraints from party leaders. In the summer of 1990 the party convened the 28th Congress. A new Politburo was elected, previous incumbents (except Gorbachev and Vladimir Ivashko, the CPSU Deputy General Secretary) were removed. Later that year, the party began work on a new program with a working title, "Towards a Humane, Democratic Socialism". According to Brown, the program reflected Gorbachev's journey from an orthodox communist to a European social democrat. The freedoms of thought and organization which Gorbachev allowed led to a rise in nationalism in the Soviet republics, indirectly weakening the central authorities. In response to this, a referendum took place in 1991, in which most of the union republics voted to preserve the union in a different form. In reaction to this, conservative elements within the CPSU launched the August 1991 coup, which overthrew Gorbachev but failed to preserve the Soviet Union. When Gorbachev resumed control (21 August 1991) after the coup's collapse, he resigned from the CPSU on 24 August 1991 and operations were handed over to Ivashko. On 29 August 1991 the activity of the CPSU was suspended throughout the country, on 6 November Yeltsin banned the activities of the party in Russia and Gorbachev resigned from the presidency on 25 December; the following day the Soviet of Republics dissolved the Soviet Union.
On 30 November 1992, the Constitutional Court of the Russian Federation recognized the ban on the activities of the primary organizations of the Communist Party, formed on a territorial basis, as inconsistent with the Constitution of Russia, but upheld the dissolution of the governing structures of the CPSU and the governing structures of its republican organization—the Communist Party of the RSFSR.
After the dissolution of the Soviet Union in 1991, Russian adherents to the CPSU tradition, particularly as it existed before Gorbachev, reorganized themselves within the Communist Party of the Russian Federation (CPRF). Today a wide range of parties in Russia present themselves as successors of CPSU. Several of them have used the name "CPSU". However, the CPRF is generally seen (due to its massive size) as the heir of the CPSU in Russia. Additionally, the CPRF was initially founded as the Communist Party of the Russian SFSR in 1990 (sometime before the abolition of the CPSU) and was seen by critics as a "Russian-nationalist" counterpart to the CPSU.
The style of governance in the party alternated between collective leadership and a cult of personality. Collective leadership split power between the Politburo, the Central Committee, and the Council of Ministers to hinder any attempts to create a one-man dominance over the Soviet political system. By contrast, Stalin's period as the leader was characterized by an extensive cult of personality. Regardless of leadership style, all political power in the Soviet Union was concentrated in the organization of the CPSU.
Democratic centralism is an organizational principle conceived by Lenin. According to Soviet pronouncements, democratic centralism was distinguished from "bureaucratic centralism", which referred to high-handed formulae without knowledge or discussion. In democratic centralism, decisions are taken after discussions, but once the general party line has been formed, discussion on the subject must cease. No member or organizational institution may dissent on a policy after it has been agreed upon by the party's governing body; to do so would lead to expulsion from the party (formalized at the 10th Congress). Because of this stance, Lenin initiated a ban on factions, which was approved at the 10th Congress.
Lenin believed that democratic centralism safeguarded both party unity and ideological correctness. He conceived of the system after the events of 1917 when several socialist parties "deformed" themselves and actively began supporting nationalist sentiments. Lenin intended that the devotion to policy required by centralism would protect the parties from such revisionist ills and bourgeois deformation of socialism. Lenin supported the notion of a highly centralized vanguard party, in which ordinary party members elected the local party committee, the local party committee elected the regional committee, the regional committee elected the Central Committee, and the Central Committee elected the Politburo, Orgburo, and the Secretariat. Lenin believed that the party needed to be ruled from the center and have at its disposal power to mobilize party members at will. This system was later introduced in communist parties abroad through the Communist International (Comintern).
A central tenet of Leninism was that of the vanguard party. In a capitalist society, the party was to represent the interests of the working class and all of those who were exploited by capitalism in general; however, it was not to become a part of that class. Lenin decided that the party's sole responsibility was to articulate and plan the long-term interests of the oppressed classes. It was not responsible for the daily grievances of those classes; that was the responsibility of the trade unions. According to Lenin, the party and the oppressed classes could never become one because the party was responsible for leading the oppressed classes to victory. The basic idea was that a small group of organized people could wield power disproportionate to their size with superior organizational skills. Despite this, until the end of his life, Lenin warned of the danger that the party could be taken over by bureaucrats, by a small clique, or by an individual. Toward the end of his life, he criticized the bureaucratic inertia of certain officials and admitted to problems with some of the party's control structures, which were to supervise organizational life.
The Congress, nominally the highest organ of the party, was convened every five years. Leading up to the October Revolution and until Stalin's consolidation of power, the Congress was the party's main decision-making body. However, after Stalin's ascension, the Congresses became largely symbolic. CPSU leaders used Congresses as a propaganda and control tool. The most noteworthy Congress since the 1930s was the 20th Congress, in which Khrushchev denounced Stalin in a speech titled "The Personality Cult and its Consequences".
Despite delegates to Congresses losing their powers to criticize or remove party leadership, the Congresses functioned as a form of elite-mass communication. They were occasions for the party leadership to express the party line over the next five years to ordinary CPSU members and the general public. The information provided was general, ensuring that party leadership retained the ability to make specific policy changes as they saw fit.
The Congresses also provided the party leadership with formal legitimacy by providing a mechanism for the election of new members and the retirement of old members who had lost favor. The elections at Congresses were all predetermined and the candidates who stood for seats to the Central Committee and the Central Auditing Commission were approved beforehand by the Politburo and the Secretariat. A Congress could also provide a platform for the announcement of new ideological concepts. For instance, at the 22nd Congress, Khrushchev announced that the Soviet Union would see "communism in twenty years"— a position later retracted.
A Conference, officially referred to as an All-Union Conference, was convened between Congresses by the Central Committee to discuss party policy and to make personnel changes within the Central Committee. 19 conferences were convened during the CPSU's existence. The 19th Congress held in 1952 removed the clause in the party's statute which stipulated that a party Conference could be convened. The clause was reinstated at the 23rd Congress, which was held in 1966.
The Central Committee was a collective body elected at the annual party congress. It was mandated to meet at least twice a year to act as the party's supreme governing body. Membership of the Central Committee increased from 71 full members in 1934 to 287 in 1976. Central Committee members were elected to the seats because of the offices they held, not on their personal merit. Because of this, the Central Committee was commonly considered an indicator for Sovietologists to study the strength of the different institutions. The Politburo was elected by and reported to the Central Committee. Besides the Politburo, the Central Committee also elected the Secretariat and the General Secretary—the de facto leader of the Soviet Union. In 1919–1952, the Orgburo was also elected in the same manner as the Politburo and the Secretariat by the plenums of the Central Committee. In between Central Committee plenums, the Politburo and the Secretariat were legally empowered to make decisions on its behalf. The Central Committee or the Politburo and/or Secretariat on its behalf could issue nationwide decisions; decisions on behalf of the party were transmitted from the top to the bottom.
Under Lenin, the Central Committee functioned much as the Politburo did during the post-Stalin era, serving as the party's governing body. However, as the membership in the Central Committee increased, its role was eclipsed by the Politburo. Between Congresses, the Central Committee functioned as the Soviet leadership's source of legitimacy. The decline in the Central Committee's standing began in the 1920s; it was reduced to a compliant body of the Party leadership during the Great Purge. According to party rules, the Central Committee was to convene at least twice a year to discuss political matters—but not matters relating to military policy. The body remained largely symbolic after Stalin's consolidation; leading party officials rarely attended meetings of the Central Committee.
The Central Auditing Commission (CAC) was elected by the party Congresses and reported only to the party Congress. It had about as many members as the Central Committee. It was responsible for supervising the expeditious and proper handling of affairs by the central bodies of the Party; it audited the accounts of the Treasury and the enterprises of the Central Committee. It was also responsible for supervising the Central Committee apparatus, making sure that its directives were implemented and that Central Committee directives complied with the party Statute.
The Statute (also referred to as the Rules, Charter and Constitution) was the party's by-laws and controlled life within the CPSU. The 1st Statute was adopted at the 2nd Congress of the Russian Social Democratic Labour Party—the forerunner of the CPSU. How the Statute was to be structured and organized led to a schism within the party, leading to the establishment of two competing factions; Bolsheviks (literally majority) and Mensheviks (literally minority). The 1st Statute was based upon Lenin's idea of a centralized vanguard party. The 4th Congress, despite a majority of Menshevik delegates, added the concept of democratic centralism to Article 2 of the Statute. The 1st Statute lasted until 1919 when the 8th Congress adopted the 2nd Statute. It was nearly five times as long as the 1st Statute and contained 66 articles. It was amended at the 9th Congress. At the 11th Congress, the 3rd Statute was adopted with only minor amendments being made. New statutes were approved at the 17th and 18th Congresses respectively. The last party statute, which existed until the dissolution of the CPSU, was adopted at the 22nd Congress.
General Secretary of the Central Committee was the title given to the overall leader of the party. The office was synonymous with the leader of the Soviet Union after Joseph Stalin's consolidation of power in the 1920s. Stalin used the office of General Secretary to create a strong power base for himself. The office was formally titled First Secretary between 1953 and 1966.
The Political Bureau (Politburo), known as the Presidium from 1952 to 1966, was the highest party organ when the Congress and the Central Committee were not in session. Until the 19th Conference in 1988, the Politburo alongside the Secretariat controlled appointments and dismissals nationwide. In the post-Stalin period, the Politburo controlled the Central Committee apparatus through two channels; the General Department distributed the Politburo's orders to the Central Committee departments and through the personnel overlap which existed within the Politburo and the Secretariat. This personnel overlap gave the CPSU General Secretary a way of strengthening his position within the Politburo through the Secretariat. Kirill Mazurov, Politburo member from 1965 to 1978, accused Brezhnev of turning the Politburo into a "second echelon" of power. He accomplished this by discussing policies before Politburo meetings with Mikhail Suslov, Andrei Kirilenko, Fyodor Kulakov and Dmitriy Ustinov among others, who held seats both in the Politburo and the Secretariat. Mazurov's claim was later verified by Nikolai Ryzhkov, the Chairman of the Council of Ministers under Gorbachev. Ryzhkov said that Politburo meetings lasted only 15 minutes because the people close to Brezhnev had already decided what was to be approved.
The Politburo was abolished and replaced by a Presidium in 1952 at the 19th Congress. In the aftermath the 19th Congress and the 1st Plenum of the 19th Central Committee, Stalin ordered the creation of the Bureau of the Presidium, which acted as the standing committee of the Presidium. On 6 March 1953, one day after Stalin's death, a new and smaller Presidium was elected, and the Bureau of the Presidium was abolished in a joint session with the Presidium of the Supreme Soviet and the Council of Ministers.
Until 1990, the CPSU General Secretary acted as the informal chairman of the Politburo. During the first decades of the CPSU's existence, the Politburo was officially chaired by the Chairman of the Council of People's Commissars; first by Lenin, then by Aleksey Rykov, Molotov, Stalin and Malenkov. After 1922, when Lenin was incapacitated, Lev Kamenev as Deputy Chairman of the Council of People's Commissars chaired the Politburo's meetings. This tradition lasted until Khrushchev's consolidation of power. In the first post-Stalin years, when Malenkov chaired Politburo meetings, Khrushchev as First Secretary signed all Central Committee documents into force. From 1954 until 1958, Khrushchev chaired the Politburo as First Secretary, but in 1958 he dismissed and succeeded Nikolai Bulganin as Chairman of the Council of Ministers. During this period, the informal position of Second Secretary—later formalized as Deputy General Secretary—was established. The Second Secretary became responsible for chairing the Secretariat in place of the General Secretary. When the General Secretary could not chair the meetings of the Politburo, the Second Secretary would take his place. This system survived until the dissolution of the CPSU in 1991.
To be elected to the Politburo, a member had to serve in the Central Committee. The Central Committee elected the Politburo in the aftermath of a party Congress. Members of the Central Committee were given a predetermined list of candidates for the Politburo having only one candidate for each seat; for this reason, the election of the Politburo was usually passed unanimously. The greater the power held by the sitting CPSU General Secretary, the higher the chance that the Politburo membership would be approved.
The Secretariat headed the CPSU's central apparatus and was solely responsible for the development and implementation of party policies. It was legally empowered to take over the duties and functions of the Central Committee when it was not in the plenum (did not hold a meeting). Many members of the Secretariat concurrently held a seat in the Politburo. According to a Soviet textbook on party procedures, the Secretariat's role was that of "leadership of current work, chiefly in the realm of personnel selection and in the organization of the verification of fulfillment of party-state decisions". "Selections of personnel" (Russian: podbor kadrov) in this instance meant the maintenance of general standards and the criteria for selecting various personnel. "Verification of fulfillment" (Russian: proverka ispolneniia) of party and state decisions meant that the Secretariat instructed other bodies.
The powers of the Secretariat were weakened under Mikhail Gorbachev, and the Central Committee Commissions took over the functions of the Secretariat in 1988. Yegor Ligachev, a Secretariat member, said that the changes completely destroyed the Secretariat's hold on power and made the body almost superfluous. Because of this, the Secretariat rarely met during the next two years. It was revitalized at the 28th Party Congress in 1990, and the Deputy General Secretary became the official head of the Secretariat.
The Organizational Bureau, or Orgburo, existed from 1919 to 1952 and was one of three leading bodies of the party when the Central Committee was not in session. It was responsible for "organizational questions, the recruitment, and allocation of personnel, the coordination of activities of the party, government and social organizations (e.g., trade unions and youth organizations), improvement to the party's structure, the distribution of information and reports within the party". The 19th Congress abolished the Orgburo and its duties and responsibilities were taken over by the Secretariat. At the beginning, the Orgburo held three meetings a week and reported to the Central Committee every second week. Lenin described the relation between the Politburo and the Orgburo as "the Orgburo allocates forces, while the Politburo decides policy". A decision of the Orgburo was implemented by the Secretariat. However, the Secretariat could make decisions in the Orgburo's name without consulting its members, but if one Orgburo member objected to a Secretariat resolution, the resolution would not be implemented. In the 1920s, if the Central Committee could not convene the Politburo and the Orgburo would hold a joint session in its place.
The Central Control Commission (CCC) functioned as the party's supreme court. The CCC was established at the 9th All-Russian Conference in September 1920, but rules organizing its procedure were not enacted before the 10th Congress. The 10th Congress formally established the CCC on all party levels and stated that it could only be elected at a party congress or a party conference. The CCC and the CCs were formally independent but had to make decisions through the party committees at their level, which led them in practice to lose their administrative independence. At first, the primary responsibility of the CCs was to respond to party complaints, focusing mostly on party complaints of factionalism and bureaucratism. At the 11th Congress, the brief of the CCs was expanded; it became responsible for overseeing party discipline. In a bid to further centralize the powers of the CCC, a Presidium of the CCC, which functioned in a similar manner to the Politburo in relation to the Central Committee, was established in 1923. At the 18th Congress, party rules regarding the CCC were changed; it was now elected by the Central Committee and was subordinate to the Central Committee.
CCC members could not concurrently be members of the Central Committee. To create an organizational link between the CCC and other central-level organs, the 9th All-Russian Conference created the joint CC–CCC plenums. The CCC was a powerful organ; the 10th Congress allowed it to expel full and candidate Central Committee members and members of their subordinate organs if two-thirds of attendants at a CC–CCC plenum voted for such. At its first such session in 1921, Lenin tried to persuade the joint plenum to expel Alexander Shliapnikov from the party; instead of expelling him, Shliapnikov was given a severe reprimand.
The leader of a department was usually given the title "head" (Russian: zaveduiuschchii). In practice, the Secretariat had a major say in the running of the departments; for example, five of eleven secretaries headed their own departments in 1978. Normally, specific secretaries were given supervising duties over one or more departments. Each department established its own cells—called sections—which specialized in one or more fields. During the Gorbachev era, a variety of departments made up the Central Committee apparatus. The Party Building and Cadre Work Department assigned party personnel in the nomenklatura system. The State and Legal Department supervised the armed forces, KGB, the Ministry of Internal Affairs, the trade unions, and the Procuracy. Before 1989, the Central Committee had several departments, but some were abolished that year. Among these departments was the Economics Department that was responsible for the economy as a whole, one for machine building, one for the chemical industry, etc. The party abolished these departments to remove itself from the day-to-day management of the economy in favor of government bodies and a greater role for the market, as a part of the perestroika process. In their place, Gorbachev called for the creations of commissions with the same responsibilities as departments, but giving more independence from the state apparatus. This change was approved at the 19th Conference, which was held in 1988. Six commissions were established by late 1988.
Pravda (The Truth) was the leading newspaper in the Soviet Union. The Organizational Department of the Central Committee was the only organ empowered to dismiss Pravda editors. In 1905, Pravda began as a project by members of the Ukrainian Social Democratic Labour Party. Leon Trotsky was approached about the possibility of running the new paper because of his previous work on Ukrainian newspaper Kyivan Thought. The first issue of Pravda was published on 3 October 1908 in Lvov, where it continued until the publication of the sixth issue in November 1909, when the operation was moved to Vienna, Austria-Hungary. During the Russian Civil War, sales of Pravda were curtailed by Izvestia, the government run newspaper. At the time, the average reading figure for Pravda was 130,000. This Vienna-based newspaper published its last issue in 1912 and was succeeded the same year by a new newspaper dominated by the Bolsheviks, also called Pravda, which was headquartered in St. Petersburg. The paper's main goal was to promote Marxist–Leninist philosophy and expose the lies of the bourgeoisie. In 1975, the paper reached a circulation of 10.6 million. It is currently owned by the Communist Party of the Russian Federation.
The Higher Party School (HPS) was the organ responsible for teaching cadres in the Soviet Union. It was the successor of the Communist Academy, which was established in 1918. The HPS was established in 1939 as the Moscow Higher Party School and it offered its students a two-year training course for becoming a CPSU official. It was reorganized in 1956 to that it could offer more specialized ideological training. In 1956, the school in Moscow was opened for students from socialist countries outside the Soviet Union. The Moscow Higher Party School was the party school with the highest standing. The school itself had eleven faculties until a 1972 Central Committee resolution demanded a reorganization of the curriculum. The first regional HPS outside Moscow was established in 1946 and by the early 1950s there were 70 Higher Party Schools. During the reorganization drive of 1956, Khrushchev closed 13 of them and reclassified 29 as inter-republican and inter-oblast schools.
The lowest organ above the primary party organization (PPO) was the district level. Every two years, the local PPO would elect delegates to the district-level party conference, which was overseen by a secretary from a higher party level. The conference elected a Party Committee and First Secretary and re-declared the district's commitment to the CPSU's program. In between conferences, the "raion" party committee—commonly referred to as "raikom"—was vested with ultimate authority. It convened at least six times a year to discuss party directives and to oversee the implementation of party policies in their respective districts, to oversee the implementation of party directives at the PPO-level, and to issue directives to PPOs. 75–80 percent of raikom members were full members, while the remaining 20–25 were non-voting, candidate members. Raikom members were commonly from the state sector, party sector, Komsomol or the trade unions.
Day-to-day responsibility of the raikom was handed over to a Politburo, which usually composed of 12 members. The district-level First Secretary chaired the meetings of the local Politburo and the raikom, and was the direct link between the district and the higher party echelons. The First Secretary was responsible for the smooth running of operations. The raikom was headed by the local apparat—the local agitation department or industry department. A raikom usually had no more than 4 or 5 departments, each of which was responsible for overseeing the work of the state sector but would not interfere in their work.
This system remained identical at all other levels of the CPSU hierarchy. The other levels were cities, oblasts (regions) and republics. The district-level elected delegates to a conference held at least every three years to elect the party committee. The only difference between the oblast and the district level was that the oblast had its own Secretariat and had more departments at its disposal. The oblast's party committee in turn elected delegates to the republican-level Congress, which was held every five years. The Congress then elected the Central Committee of the republic, which in turn elected a First Secretary and a Politburo. Until 1990, the Russian Soviet Federative Socialist Republic was the only republic that did not have its own republican branch, being instead represented by the CPSU Central Committee.
The primary party organization (PPO) was the lowest level in the CPSU hierarchy. PPOs were organized cells consisting of three or more members. A PPO could exist anywhere; for example, in a factory or a student dormitory. They functioned as the party's "eyes and ears" at the lowest level and were used to mobilize support for party policies. All CPSU members had to be a member of a local PPO. The size of a PPO varied from three people to several hundred, depending upon its setting. In a large enterprise, a PPO usually had several hundred members. In such cases, the PPO was divided into bureaus based upon production-units. Each PPO was led by an executive committee and an executive committee secretary. Each executive committee is responsible for the PPO executive committee and its secretary. In small PPOs, members met periodically to mainly discuss party policies, ideology, or practical matters. In such a case, the PPO secretary was responsible for collecting party dues, reporting to higher organs, and maintaining the party records. A secretary could be elected democratically through a secret ballot, but that was not often the case; in 1979, only 88 out of the over 400,000 PPOs were elected in this fashion. The remainder were chosen by a higher party organ and ratified by the general meetings of the PPO. The PPO general meeting was responsible for electing delegates to the party conference at either the district- or town-level, depending on where the PPO was located.
Membership of the party was not open. To become a party member, one had to be approved by various committees, and one's past was closely scrutinized. As generations grew up having known nothing before the Soviet Union, party membership became something one generally achieved after passing a series of stages. Children would join the Young Pioneers and, at the age of 14, might graduate to the Komsomol (Young Communist League). Ultimately, as an adult, if one had shown the proper adherence to party discipline—or had the right connections, one would become a member of the Communist Party itself. Membership of the party carried obligations as it expected Komsomol and CPSU members to pay dues and to carry out appropriate assignments and "social tasks" (общественная работа).
In 1918, party membership was approximately 200,000. In the late 1920s under Stalin, the party engaged in an intensive recruitment campaign, the "Lenin Levy", resulting in new members referred to as the Lenin Enrolment, from both the working class and rural areas. This represented an attempt to "proletarianize" the party and an attempt by Stalin to strengthen his base by outnumbering the Old Bolsheviks and reducing their influence in the Party. In 1925, the party had 1,025,000 members in a Soviet population of 147 million. In 1927, membership had risen to 1,200,000. During the collectivization campaign and industrialization campaigns of the first five-year plan from 1929 to 1933, party membership grew rapidly to approximately 3.5 million members. However, party leaders suspected that the mass intake of new members had allowed "social-alien elements" to penetrate the party's ranks and document verifications of membership ensued in 1933 and 1935, removing supposedly unreliable members. Meanwhile, the party closed its ranks to new members from 1933 to November 1936. Even after the reopening of party recruiting, membership fell to 1.9 million by 1939. Nicholas DeWitt gives 2.307 million members in 1939, including candidate members, compared with 1.535 million in 1929 and 6.3 million in 1947. In 1986, the CPSU had over 19 million members—approximately 10% of the Soviet Union's adult population. Over 44% of party members were classified as industrial workers and 12% as collective farmers. The CPSU had party organizations in 14 of the Soviet Union's 15 republics. The Russian Soviet Federative Socialist Republic itself had no separate Communist Party until 1990 because the CPSU controlled affairs there directly.
The All-Union Leninist Communist Youth League, commonly referred to as Komsomol, was the party's youth wing. The Komsomol acted under the direction of the CPSU Central Committee. It was responsible for indoctrinating youths in communist ideology and organizing social events. It was closely modeled on the CPSU; nominally the highest body was the Congress, followed by the Central Committee, Secretariat and the Politburo. The Komsomol participated in nationwide policy-making by appointing members to the collegiums of the Ministry of Culture, the Ministry of Higher and Specialized Secondary Education, the Ministry of Education and the State Committee for Physical Culture and Sports. The organization's newspaper was the Komsomolskaya Pravda. The First Secretary and the Second Secretary were commonly members of the Central Committee but were never elected to the Politburo. However, at the republican level, several Komsomol first secretaries were appointed to the Politburo.
Marxism–Leninism was the cornerstone of Soviet ideology. It explained and legitimized the CPSU's right to rule while explaining its role as a vanguard party. For instance, the ideology explained that the CPSU's policies, even if they were unpopular, were correct because the party was enlightened. It was represented as the only truth in Soviet society; the party rejected the notion of multiple truths. Marxism–Leninism was used to justify CPSU rule and Soviet policy, but it was not used as a means to an end. The relationship between ideology and decision-making was at best ambivalent; most policy decisions were made in the light of the continued, permanent development of Marxism–Leninism. Marxism–Leninism as the only truth could not—by its very nature—become outdated.
Despite having evolved over the years, Marxism–Leninism had several central tenets. The main tenet was the party's status as the sole ruling party. The 1977 Constitution referred to the party as "The leading and guiding force of Soviet society, and the nucleus of its political system, of all state and public organizations, is the Communist Party of the Soviet Union". State socialism was essential and from Stalin until Gorbachev, official discourse considered that private social and economic activity retarding the development of collective consciousness and the economy. Gorbachev supported privatization to a degree but based his policies on Lenin's and Nikolai Bukharin's opinions of the New Economic Policy of the 1920s, and supported complete state ownership over the commanding heights of the economy. Unlike liberalism, Marxism–Leninism stressed the role of the individual as a member of a collective rather than the importance of the individual. Individuals only had the right to freedom of expression if it safeguarded the interests of a collective. For instance, the 1977 Constitution stated that every person had the right to express his or her opinion, but the opinion could only be expressed if it was in accordance with the "general interests of Soviet society". The number of rights granted to an individual was decided by the state, and the state could remove these rights if it saw fit. Soviet Marxism–Leninism justified nationalism; the Soviet media portrayed every victory of the state as a victory for the communist movement as a whole. Largely, Soviet nationalism was based upon ethnic Russian nationalism. Marxism–Leninism stressed the importance of the worldwide conflict between capitalism and socialism; the Soviet press wrote about progressive and reactionary forces while claiming that socialism was on the verge of victory and that the "correlations of forces" were in the Soviet Union's favor. The ideology professed state atheism and party members were consequently not allowed to be religious.
Marxism–Leninism believed in the feasibility of a communist mode of production. All policies were justifiable if it contributed to the Soviet Union's achievement of that stage.
In Marxist philosophy, Leninism is the body of political theory for the democratic organization of a revolutionary vanguard party and the achievement of a dictatorship of the proletariat as a political prelude to the establishment of the socialist mode of production developed by Lenin. Since Karl Marx rarely, if ever wrote about how the socialist mode of production would function, these tasks were left for Lenin to solve. Lenin's main contribution to Marxist thought is the concept of the vanguard party of the working class. He conceived the vanguard party as a highly knit, centralized organization that was led by intellectuals rather than by the working class itself. The CPSU was open only to a small number of workers because the workers in Russia still had not developed class consciousness and needed to be educated to reach such a state. Lenin believed that the vanguard party could initiate policies in the name of the working class even if the working class did not support them. The vanguard party would know what was best for the workers because the party functionaries had attained consciousness.
Lenin, in light of the Marx's theory of the state (which views the state as an oppressive organ of the ruling class), had no qualms of forcing change upon the country. He viewed the dictatorship of the proletariat, rather than the dictatorship of the bourgeoisie, to be the dictatorship of the majority. The repressive powers of the state were to be used to transform the country, and to strip of the former ruling class of their wealth. Lenin believed that the transition from the capitalist mode of production to the socialist mode of production would last for a long period. According to some authors, Leninism was by definition authoritarian. In contrast to Marx, who believed that the socialist revolution would comprise and be led by the working class alone, Lenin argued that a socialist revolution did not necessarily need to be led or to comprise the working class alone. Instead, he said that a revolution needed to be led by the oppressed classes of society, which in the case of Russia was the peasant class.
Stalinism, while not an ideology per se, refers to Stalin's thoughts and policies. Stalin's introduction of the concept "Socialism in One Country" in 1924 was an important moment in Soviet ideological discourse. According to Stalin, the Soviet Union did not need a socialist world revolution to construct a socialist society. Four years later, Stalin initiated his "Second Revolution" with the introduction of state socialism and central planning. In the early 1930s, he initiated the collectivization of Soviet agriculture by de-privatizing agriculture and creating peasant cooperatives rather than making it the responsibility of the state. With the initiation of his "Second Revolution", Stalin launched the "Cult of Lenin"—a cult of personality centered upon himself. The name of the city of Petrograd was changed to Leningrad, the town of Lenin's birth was renamed Ulyanov (Lenin's birth-name), the Order of Lenin became the highest state award and portraits of Lenin were hung in public squares, workplaces and elsewhere. The increasing bureaucracy which followed the introduction of a state socialist economy was at complete odds with the Marxist notion of "the withering away of the state". Stalin explained the reasoning behind it at the 16th Congress held in 1930;
We stand for the strengthening of the dictatorship of the proletariat, which represents the mightiest and most powerful authority of all forms of State that have ever existed. The highest development of the State power for the withering away of State power —this is the Marxian formula. Is this contradictory? Yes, it is contradictory. But this contradiction springs from life itself and reflects completely Marxist dialectic.
At the 1939 18th Congress, Stalin abandoned the idea that the state would wither away. In its place, he expressed confidence that the state would exist, even if the Soviet Union reached communism, as long as it was encircled by capitalism. Two key concepts were created in the latter half of his rule; the "two camps" theory and the "capitalist encirclement" theory. The threat of capitalism was used to strengthen Stalin's personal powers and Soviet propaganda began making a direct link with Stalin and stability in society, saying that the country would crumble without the leader. Stalin deviated greatly from classical Marxism on the subject of "subjective factors"; Stalin said that party members of all ranks had to profess fanatic adherence to the party's line and ideology, if not, those policies would fail.
Either the dictatorship of the landowners and capitalists or the dictatorship of the proletariat ... There is no middle course ... There is no middle course anywhere in the world, nor can there be.
— Lenin, claiming that people had only two choices between two different, but distinct class dictatorships
Lenin, supporting Marx's theory of the state, believed democracy to be unattainable anywhere in the world before the proletariat seized power. According to Marxist theory, the state is a vehicle for oppression and is headed by a ruling class. He believed that by his time, the only viable solution was dictatorship since the war was heading into a final conflict between the "progressive forces of socialism and the degenerate forces of capitalism". The Russian Revolution was by 1917, already a failure according to its original aim, which was to act as an inspiration for a world revolution. The initial anti-statist posture and the active campaigning for direct democracy was replaced because of Russia's level of development with—according to their own assessments—dictatorship. The reasoning was Russia's lack of development, its status as the sole socialist state in the world, its encirclement by imperialist powers, and its internal encirclement by the peasantry.
Marx and Lenin did not care if a bourgeois state was ruled in accordance with a republican, parliamentary or a constitutional monarchical system since this did not change the overall situation. These systems, even if they were ruled by a small clique or ruled through mass participation, were all dictatorships of the bourgeoisie who implemented policies in defense of capitalism. However, there was a difference; after the failures of the world revolutions, Lenin argued that this did not necessarily have to change under the dictatorship of the proletariat. The reasoning came from practical considerations; the majority of the country's inhabitants were not communists, neither could the party reintroduce parliamentary democracy because that was not in synchronization with its ideology and would lead to the party losing power. He, therefore, concluded that the form of government has nothing to do with the nature of the dictatorship of the proletariat.
Bukharin and Trotsky agreed with Lenin; both said that the revolution had destroyed the old but had failed to create anything new. Lenin had now concluded that the dictatorship of the proletariat would not alter the relationship of power between men, but would rather "transform their productive relations so that, in the long run, the realm of necessity could be overcome and, with that, genuine social freedom realized". From 1920 to 1921, Soviet leaders and ideologists began differentiating between socialism and communism; hitherto the two terms had been used interchangeably and used to explain the same things. From then, the two terms had different meanings; Russia was in transition from capitalism to socialism—referred to interchangeably under Lenin as the dictatorship of the proletariat, socialism was the intermediate stage to communism and communism was considered the last stage of social development. By now, the party leaders believed that because of Russia's backward state, universal mass participation and true democracy could only take form in the last stage.
[Because] the proletariat is still so divided, so degraded, so corrupted in parts ... that an organization taking in the whole proletariat cannot directly exercise proletarian dictatorship. It can be exercised only by a vanguard that has absorbed the revolutionary energy of the class.
— Lenin, explaining why the regime had become increasingly dictatorial
In early Bolshevik discourse, the term "dictatorship of the proletariat" was of little significance, and the few times it was mentioned it was likened to the form of government which had existed in the Paris Commune. However, with the ensuing Russian Civil War and the social and material devastation that followed, its meaning altered from commune-type democracy to rule by iron-discipline. By now, Lenin had concluded that only a proletarian regime as oppressive as its opponents could survive in this world. The powers previously bestowed upon the Soviets were now given to the Council of People's Commissars, the central government, which was, in turn, to be governed by "an army of steeled revolutionary Communists [by Communists he referred to the Party]". In a letter to Gavril Myasnikov in late 1920, Lenin explained his new interpretation of the term "dictatorship of the proletariat":
Dictatorship means nothing more nor less than authority untrammeled by any laws, absolutely unrestricted by any rules whatever, and based directly on force. The term 'dictatorship' has no other meaning but this.
Lenin justified these policies by claiming that all states were class states by nature and that these states were maintained through class struggle. This meant that the dictatorship of the proletariat in the Soviet Union could only be "won and maintained by the use of violence against the bourgeoisie". The main problem with this analysis is that the party came to view anyone opposing or holding alternate views of the party as bourgeois. Its worst enemy remained the moderates, which were considered to be "the real agents of the bourgeoisie in the working-class movement, the labor lieutenants of the capitalist class". The term "bourgeoisie" became synonymous with "opponent" and with people who disagreed with the party in general. These oppressive measures led to another reinterpretation of the dictatorship of the proletariat and socialism in general; it was now defined as a purely economic system. Slogans and theoretical works about democratic mass participation and collective decision-making were now replaced with texts which supported authoritarian management. Considering the situation, the party believed it had to use the same powers as the bourgeoisie to transform Russia; there was no alternative. Lenin began arguing that the proletariat, like the bourgeoisie, did not have a single preference for a form of government and because of that, the dictatorship was acceptable to both the party and the proletariat. In a meeting with party officials, Lenin stated—in line with his economist view of socialism—that "Industry is indispensable, democracy is not", further arguing that "we [the Party] do not promise any democracy or any freedom".
Imperialism is capitalism at the stage of development at which the dominance of monopolies and finance capital is established; in which the export of capital has acquired pronounced importance; in which the division of the world among the international trusts as begun; in which divisions of all territories of the globe among the biggest capitalist powers has been completed.
— Lenin, citing the main features of capitalism in the age of imperialism in Imperialism: the Highest Stage of Capitalism
The Marxist theory on imperialism was conceived by Lenin in his book, Imperialism: the Highest Stage of Capitalism (published in 1917). It was written in response to the theoretical crisis within Marxist thought, which occurred due to capitalism's recovery in the 19th century. According to Lenin, imperialism was a specific stage of development of capitalism; a stage he referred to as state monopoly capitalism. The Marxist movement was split on how to solve capitalism's resurgence after the great depression of the late 19th century. Eduard Bernstein from the Social Democratic Party of Germany (SDP) considered capitalism's revitalization as proof that it was evolving into a more humane system, adding that the basic aims of socialists were not to overthrow the state but to take power through elections. Karl Kautsky, also from the SDP, held a highly dogmatic view; he said that there was no crisis within Marxist theory. Both of them denied or belittled the role of class contradictions in society after the crisis. In contrast, Lenin believed that the resurgence was the beginning of a new phase of capitalism; this stage was created because of a strengthening of class contradiction, not because of its reduction.
Lenin did not know when the imperialist stage of capitalism began; he said it would be foolish to look for a specific year, however, said it began at the beginning of the 20th century (at least in Europe). Lenin believed that the economic crisis of 1900 accelerated and intensified the concentration of industry and banking, which led to the transformation of the finance capital connection to industry into the monopoly of large banks. In Imperialism: the Highest Stage of Capitalism, Lenin wrote; "the twentieth century marks the turning point from the old capitalism to the new, from the domination of capital in general to the domination of finance capital". Lenin defines imperialism as the monopoly stage of capitalism.
The 1986 Party Program claimed the Tsarist regime collapsed because the contradictions of imperialism, which he held to be the gap "between the social nature of production and the private capitalist form of appropriation" manifesting itself in wars, economic recessions, and exploitation of the working class, were strongest in Russia. Imperialism was held to have caused the Russo-Japanese War and the First World War, with the 1905 Russian Revolution presented as "the first people's revolution of the imperialist epoch" and the October Revolution is said to have been rooted in "the nationwide movement against imperialist war and for peace."
The loss by imperialism of its dominating role in world affairs and the utmost expansion of the sphere in which the laws of socialist foreign policy operate are a distinctive feature of the present stage of social development. The main direction of this development is toward even greater changes in the correlation of forces in the world arena in favor of socialism.
— Nikolay Inozemtsev, a Soviet foreign policy analyst, referring to series of events (which he believed) would lead to the ultimate victory of socialism
"Peaceful coexistence" was an ideological concept introduced under Khrushchev's rule. While the concept has been interpreted by fellow communists as proposing an end to the conflict between the systems of capitalism and socialism, Khrushchev saw it as a continuation of the conflict in every area except in the military field. The concept said that the two systems were developed "by way of diametrically opposed laws", which led to "opposite principles in foreign policy".
Peaceful coexistence was steeped in Leninist and Stalinist thought. Lenin believed that international politics were dominated by class struggle; in the 1940s Stalin stressed the growing polarization which was occurring in the capitalist and socialist systems. Khrushchev's peaceful coexistence was based on practical changes which had occurred; he accused the old "two camp" theory of neglecting the non-aligned movement and the national liberation movements. Khrushchev considered these "grey areas", in which the conflict between capitalism and socialism would be fought. He still stressed that the main contradiction in international relations were those of capitalism and socialism. The Soviet Government under Khrushchev stressed the importance of peaceful coexistence, saying that it had to form the basis of Soviet foreign policy. Failure to do, they believed, would lead to nuclear conflict. Despite this, Soviet theorists still considered peaceful coexistence to be a continuation of the class struggle between the capitalist and socialist worlds, but not based on armed conflict. Khrushchev believed that the conflict, in its current phase, was mainly economic.
The emphasis on peaceful coexistence did not mean that the Soviet Union accepted a static world with clear lines. It continued to uphold the creed that socialism was inevitable and they sincerely believed that the world had reached a stage in which the "correlations of forces" were moving towards socialism. With the establishment of socialist regimes in Eastern Europe and Asia, Soviet foreign policy planners believed that capitalism had lost its dominance as an economic system.
The concept of "Socialism in One Country" was conceived by Stalin in his struggle against Leon Trotsky and his concept of permanent revolution. In 1924, Trotsky published his pamphlet Lessons of October, in which he stated that socialism in the Soviet Union would fail because of the backward state of economic development unless a world revolution began. Stalin responded to Trotsky's pamphlet with his article, "October and Comrade Trotsky's Theory of Permanent Revolution". In it, Stalin stated that he did not believe an inevitable conflict between the working class and the peasants would take place, and that "socialism in one country is completely possible and probable". Stalin held the view common among most Bolsheviks at the time; there was a possibility of real success for socialism in the Soviet Union despite the country's backwardness and international isolation. While Grigoriy Zinoviev, Lev Kamenev and Nikolai Bukharin—together with Stalin—opposed Trotsky's theory of permanent revolution, their views on the way socialism could be built diverged.
According to Bukharin, Zinoviev and Kamenev supported the resolution of the 14th Conference held in 1925, which stated that "we cannot complete the building of socialism due to our technological backwardness". Despite this cynical attitude, Zinoviev and Kamenev believed that a defective form of socialism could be constructed. At the 14th Conference, Stalin reiterated his position that socialism in one country was feasible despite the capitalist blockade of the Soviet Union. After the conference, Stalin wrote "Concerning the Results of the XIV Conference of the RCP(b)", in which he stated that the peasantry would not turn against the socialist system because they had a self-interest in preserving it. Stalin said the contradictions which arose within the peasantry during the socialist transition could "be overcome by our own efforts". He concluded that the only viable threat to socialism in the Soviet Union was a military intervention.
In late 1925, Stalin received a letter from a party official which stated that his position of "Socialism in One Country" was in contradiction with Friedrich Engels' writings on the subject. Stalin countered that Engels' writings reflected "the era of pre-monopoly capitalism, the pre-imperialist era when there were not yet the conditions of an uneven, abrupt development of the capitalist countries". From 1925, Bukharin began writing extensively on the subject and in 1926, Stalin wrote On Questions of Leninism, which contains his best-known writings on the subject. With the publishing of Leninism, Trotsky began countering Bukharin's and Stalin's arguments, writing that socialism in one country was only possible only in the short term, and said that without a world revolution it would be impossible to safeguard the Soviet Union from the "restoration of bourgeois relations". Zinoviev disagreed with Trotsky and Bukharin, and Stalin; he maintained Lenin's position from 1917 to 1922 and continued to say that only a defective form of socialism could be constructed in the Soviet Union without a world revolution. Bukharin began arguing for the creation of an autarkic economic model, while Trotsky said that the Soviet Union had to participate in the international division of labor to develop. In contrast to Trotsky and Bukharin, in 1938, Stalin said that a world revolution was impossible and that Engels was wrong on the matter. At the 18th Congress, Stalin took the theory to its inevitable conclusion, saying that the communist mode of production could be conceived in one country. He rationalized this by saying that the state could exist in a communist society as long as the Soviet Union was encircled by capitalism. However, with the establishment of socialist regimes in Eastern Europe, Stalin said that socialism in one country was only possible in a large country like the Soviet Union and that to survive, the other states had to follow the Soviet line.
There were few, if any, who believed that the Soviet Union was on the verge of collapse by 1985. The economy was stagnating, but stable enough for the Soviet Union to continue into the 21st century. The political situation was calm because of twenty years of systematic repression against any threat to the country and one-party rule, and the Soviet Union was in its peak of influence in world affairs. The immediate causes for the Soviet Union's dissolution were the policies and thoughts of Mikhail Gorbachev, the CPSU General Secretary. His policies of perestroika and glasnost tried to revitalize the Soviet economy and the social and political culture of the country. Throughout his rule, he put more emphasis on democratizing the Soviet Union because he believed it had lost its moral legitimacy to rule. These policies led to the collapse of the communist regimes in Eastern Europe and indirectly destabilized Gorbachev's and the CPSU's control over the Soviet Union. Archie Brown said:
The expectations of, again most notably, Lithuanians, Estonians, and Latvians were enormously enhanced by what they saw happening in the 'outer empire' [Eastern Europe], and they began to believe that they could remove themselves from the 'inner empire'. In truth, a democratized Soviet Union was incompatible with denial of the Baltic states' independence for, to the extent that those Soviet republics became democratic, their opposition to remaining in a political entity whose center was Moscow would become increasingly evident. Yet, it was not preordained that the entire Soviet Union would break up.
However, Brown said that the system did not need to collapse or to do so in the way it did. The democratization from above weakened the party's control over the country and put it on the defensive. Brown added that a different leader than Gorbachev would probably have oppressed the opposition and continued with economic reform. Nonetheless, Gorbachev accepted that the people sought a different road and consented to the Soviet Union's dissolution in 1991. He said that because of its peaceful collapse, the fall of Soviet communism is "one of the great success stories of 20th-century politics". According to Lars T. Lih, the Soviet Union collapsed because people stopped believing in its ideology. He wrote:
When in 1991 the Soviet Union collapsed not with a bang but a whimper, this unexpected outcome was partly the result of the previous disenchantments of the narrative of class leadership. The Soviet Union had always been based on the fervent belief in this narrative in its various permutations. When the binding power of the narrative dissolved, the Soviet Union itself dissolved.
The first research into the collapse of the Soviet Union and the Eastern Bloc were very simple and did not take into account several factors. However, these examinations became more advanced by the 1990s, and unlike most Western scholarship, which focuses on the role of Gorbachev and his reform efforts, the Chinese Communist Party (CCP) examined "core (political) life and death issues" so that it could learn from them and not make the same mistakes. Following the CPSU's demise and the Soviet Union's collapse, the CCP's analysis began examining systematic causes. Several leading CCP officials began hailing Khrushchev's rule, saying that he was the first reformer and that if he had continued after 1964, the Soviet Union would not have witnessed the Era of Stagnation began under Brezhnev and continued under Yuri Andropov and Konstantin Chernenko. The main economic failure was that the political leadership did not pursue any reforms to tackle the economic malaise that had taken hold, dismissing certain techniques as capitalist, and never disentangling the planned economy from socialism. Xu Zhixin from the CASS Institute of Eastern Europe, Russia, and Central Asia, argued that Soviet planners laid too much emphasis on heavy industry, which led to shortages of consumer goods. Unlike his counterparts, Xu argued that the shortages of consumer goods were not an error but "was a consciously planned feature of the system". Other CPSU failures were pursuing the policy of state socialism, the high spending on the military-industrial complex, a low tax base, and the subsidizing of the economy. The CCP argued that when Gorbachev came to power and introduced his economic reforms, they were "too little, too late, and too fast".
In my opinion, the fundamental cause of the drastic changes in the Soviet Union and East European countries at the end of the 1980s and beginning of the 1990s was the loss of dynamism of the Stalin–Soviet Socialist Model ... The demerits of this model were institutional and fundamental—not a single reform after Stalin's death brought fundamental changes to the Stalin–Soviet Socialist Model. This model, with its problems and contradictions accumulating by day, was finally in crisis, and the people of the Soviet Union and Eastern Europe lost their confidence in it. The [only] way out was to abandon the Stalin–Soviet Socialist Model and seek another road for social development.
— Lu Nanqun, a Sovietologist from CASS
While most CCP researchers criticize the CPSU's economic policies, many have criticized what they see as "Soviet totalitarianism". They accuse Joseph Stalin of creating a system of mass terror, intimidation, annulling the democracy component of democratic centralism and emphasizing centralism, which led to the creation of an inner-party dictatorship. Other points were Russian nationalism, a lack of separation between the party and state bureaucracies, suppression of non-Russian ethnicities, distortion of the economy through the introduction of over-centralization and the collectivization of agriculture. According to CCP researcher Xiao Guisen, Stalin's policies led to "stunted economic growth, tight surveillance of society, a lack of democracy in decision-making, an absence of the rule of law, the burden of bureaucracy, the CPSU's alienation from people's concerns, and an accumulation of ethnic tensions". Stalin's effect on ideology was also criticized; several researchers accused his policies of being "leftist", "dogmatist" and a deviation "from true Marxism–Leninism." He is criticized for initiating the "bastardization of Leninism", of deviating from true democratic centralism by establishing a one-man rule and destroying all inner-party consultation, of misinterpreting Lenin's theory of imperialism and of supporting foreign revolutionary movements only when the Soviet Union could get something out of it. Yu Sui, a CCP theoretician, said that "the collapse of the Soviet Union and CPSU is a punishment for its past wrongs!" Similarly, Brezhnev, Mikhail Suslov, Alexei Kosygin and Konstantin Chernenko have been criticized for being "dogmatic, ossified, inflexible, [for having a] bureaucratic ideology and thinking", while Yuri Andropov is depicted by some of having the potential of becoming a new Khrushchev if he had not died early.
While the CCP concur with Gorbachev's assessment that the CPSU needed internal reform, they do not agree on how it was implemented, criticizing his idea of "humanistic and democratic socialism", of negating the leading role of the CPSU, of negating Marxism, of negating the analysis of class contradictions and class struggle, and of negating the "ultimate socialist goal of realizing communism". Unlike the other Soviet leaders, Gorbachev is criticized for pursuing the wrong reformist policies and for being too flexible and too rightist. The CCP Organization Department said, "What Gorbachev in fact did was not to transform the CPSU by correct principles—indeed the Soviet Communist Party needed transformation—but instead he, step-by-step, and ultimately, eroded the ruling party's dominance in ideological, political and organizational aspects".
The CPSU was also criticized for not taking enough care in building the primary party organization and not having inner-party democracy. Others, more radically, concur with Milovan Đilas assessment, saying that a new class was established within the central party leadership of the CPSU and that a "corrupt and privileged class" had developed because of the nomenklatura system. Others criticized the special privileges bestowed on the CPSU elite, the nomenklatura system—which some said had decayed continuously since Stalin's rule—and the relationship between the Soviet military and the CPSU. Unlike in China, the Soviet military was a state institution whereas in China it is a party (and state) institution. The CCP criticizes the CPSU of pursuing Soviet imperialism in its foreign policies. | [
{
"paragraph_id": 0,
"text": "The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and All-Union Communist Party (Bolsheviks), sometimes referred to as the Soviet Communist Party (SCP), and formerly known as the Bolshevik Party, was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism-Leninism.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The party started in 1898 as the Russian Social Democratic Labour Party. In 1903, that party split into a Menshevik (minority) and Bolshevik (majority) faction; the latter, led by Vladimir Lenin, is the direct ancestor of the CPSU and is the party that seized power in the October Revolution of 1917. Its activities were suspended on Soviet territory 74 years later, on 29 August 1991, soon after a failed coup d'état by conservative CPSU leaders against the reforming Soviet president and party general secretary Mikhail Gorbachev.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The CPSU was a communist party based on democratic centralism. This principle, conceived by Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. The highest body within the CPSU was the Party Congress, which convened every five years. When the Congress was not in session, the Central Committee was the highest body. Because the Central Committee met twice a year, most day-to-day duties and responsibilities were vested in the Politburo, (previously the Presidium), the Secretariat and the Orgburo (until 1952). The party leader was the head of government and held the office of either General Secretary, Premier or head of state, or two of the three offices concurrently, but never all three at the same time. The party leader was the de facto chairman of the CPSU Politburo and chief executive of the Soviet Union. The tension between the party and the state (Council of Ministers of the Soviet Union) for the shifting focus of power was never formally resolved.",
"title": ""
},
{
"paragraph_id": 3,
"text": "After the founding of the Soviet Union in 1922, Lenin had introduced a mixed economy, commonly referred to as the New Economic Policy, which allowed for capitalist practices to resume under the Communist Party dictation in order to develop the necessary conditions for socialism to become a practical pursuit in the economically undeveloped country. In 1929, as Joseph Stalin became the leader of the party, Marxism–Leninism, a fusion of the original ideas of German philosopher and economic theorist Karl Marx, and Lenin, became formalized as the party's guiding ideology and would remain so throughout the rest of its existence. The party pursued state socialism, under which all industries were nationalized, and a command economy was implemented. After recovering from the Second World War, reforms were implemented which decentralized economic planning and liberalized Soviet society in general under Nikita Khrushchev. By 1980, various factors, including the continuing Cold War, and ongoing nuclear arms race with the United States and other Western European powers and unaddressed inefficiencies in the economy, led to stagnant economic growth under Alexei Kosygin, and further with Leonid Brezhnev and growing disillusionment. After the younger, vigorous Mikhail Gorbachev assumed leadership in 1985 (following two short-term elderly leaders, Yuri Andropov and Konstantin Chernenko, who quickly died in succession), rapid steps were taken to transform the tottering Soviet economic system in the direction of a market economy once again. Gorbachev and his allies envisioned the introduction of an economy similar to Lenin's earlier New Economic Policy through a program of \"perestroika\", or restructuring, but their reforms, along with the institution of free multi-candidate elections led to a decline in the party's power, and after the dissolution of the Soviet Union, the banning of the party by later last RSFSR President Boris Yeltsin and subsequent first President of an evolving democratic and free-market economy of the successor Russian Federation.",
"title": ""
},
{
"paragraph_id": 4,
"text": "A number of causes contributed to CPSU's loss of control and the dissolution of the Soviet Union during the early 1990s. Some historians have written that Gorbachev's policy of \"glasnost\" (political openness) was the root cause, noting that it weakened the party's control over society. Gorbachev maintained that perestroika without glasnost was doomed to failure anyway. Others have blamed the economic stagnation and subsequent loss of faith by the general populace in communist ideology. In the final years of the CPSU's existence, the Communist Parties of the federal subjects of Russia were united into the Communist Party of the Russian Soviet Federative Socialist Republic (RSFSR). After the CPSU's demise, the Communist Parties of the Union Republics became independent and underwent various separate paths of reform. In Russia, the Communist Party of the Russian Federation emerged and has been regarded as the inheritor of the CPSU's old Bolshevik legacy into the present day.",
"title": ""
},
{
"paragraph_id": 5,
"text": "The origin of the CPSU was in the Bolshevik faction of the Russian Social Democratic Labour Party (RSDLP). This faction arose out of the split between followers of Julius Martov and Vladimir Lenin in August 1903 at the Party's second conference. Martov's followers were called the Mensheviks (which means minority in Russian); and Lenin's, the Bolsheviks (majority). (The two factions were in fact of fairly equal numerical size.) The split became more formalized in 1914, when the factions became named the Russian Social Democratic Labour Party (Bolsheviks), and Russian Social Democratic Labour Party (Mensheviks). Prior to the February Revolution, the first phase of the Russian Revolutions of 1917, the party worked underground as organized anti-Tsarist groups. By the time of the revolution, many of the party's central leaders, including Lenin, were in exile.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "With Emperor Nicholas II (1868–1918, reigned 1894–1917), deposed in February 1917, a republic was established and administered by a provisional government, which was largely dominated by the interests of the military, former nobility, major capitalists business owners and democratic socialists. Alongside it, grassroots general assemblies spontaneously formed, called soviets, and a dual-power structure between the soviets and the provisional government was in place until such a time that their differences would be reconciled in a post-provisional government. Lenin was at this time in exile in Switzerland where he, with other dissidents in exile, managed to arrange with the Imperial German government safe passage through Germany in a sealed train back to Russia through the continent amidst the ongoing World War. In April, Lenin arrived in Petrograd (renamed former St. Petersburg) and condemned the provisional government, calling for the advancement of the revolution towards the transformation of the ongoing war into a war of the working class against capitalism. The rebellion proved not yet to be over, as tensions between the social forces aligned with the soviets (councils) and those with the provisional government now led by Alexander Kerensky (1881–1970, in power 1917), came into explosive tensions during that summer.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "The Bolsheviks had rapidly increased their political presence from May onward through the popularity of their program, notably calling for an immediate end to the war, land reform for the peasants, and restoring food allocation to the urban population. This program was translated to the masses through simple slogans that patiently explained their solution to each crisis the revolution created. Up to July, these policies were disseminated through 41 publications, Pravda being the main paper, with a readership of 320,000. This was roughly halved after the repression of the Bolsheviks following the July Days demonstrations so that even by the end of August, the principal paper of the Bolsheviks had a print run of only 50,000 copies. Despite this, their ideas gained them increasing popularity in elections to the soviets.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "The factions within the soviets became increasingly polarized in the later summer after armed demonstrations by soldiers at the call of the Bolsheviks and an attempted military coup by commanding Gen. Lavr Kornilov to eliminate the socialists from the provisional government. As the general consensus within the soviets moved leftward, less militant forces began to abandon them, leaving the Bolsheviks in a stronger position. By October, the Bolsheviks were demanding the full transfer of power to the soviets and for total rejection of the Kerensky led provisional government's legitimacy. The provisional government, insistent on maintaining the universally despised war effort on the Eastern Front because of treaty ties with its Allies and fears of Imperial German victory, had become socially isolated and had no enthusiastic support on the streets. On 7 November (25 October, old style), the Bolsheviks led an armed insurrection, which overthrew the Kerensky provisional government and left the soviets as the sole governing force in Russia.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "In the aftermath of the October Revolution, the soviets united federally and the Russian Socialist Federative Soviet Republic, the world's first constitutionally socialist state, was established. The Bolsheviks were the majority within the soviets and began to fulfill their campaign promises by signing a damaging peace to end the war with the Germans in the Treaty of Brest-Litovsk and transferring estates and imperial lands to workers' and peasants' soviets. In this context, in 1918, RSDLP(b) became All-Russian Communist Party (bolsheviks). Outside of Russia, social-democrats who supported the Soviet government began to identify as communists, while those who opposed it retained the social-democratic label.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In 1921, as the Civil War was drawing to a close, Lenin proposed the New Economic Policy (NEP), a system of state capitalism that started the process of industrialization and post-war recovery. The NEP ended a brief period of intense rationing called \"war communism\" and began a period of a market economy under Communist dictation. The Bolsheviks believed at this time that Russia, being among the most economically undeveloped and socially backward countries in Europe, had not yet reached the necessary conditions of development for socialism to become a practical pursuit and that this would have to wait for such conditions to arrive under capitalist development as had been achieved in more advanced countries such as England and Germany. On 30 December 1922, the Russian SFSR joined former territories of the Russian Empire to form the Union of Soviet Socialist Republics (USSR), of which Lenin was elected leader. On 9 March 1923, Lenin suffered a stroke, which incapacitated him and effectively ended his role in government. He died on 21 January 1924, only thirteen months after the founding of the Soviet Union, of which he would become regarded as the founding father.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "After Lenin's death, a power struggle ensued between Joseph Stalin, the party's General Secretary, and Leon Trotsky, the Minister of Defence, each with highly contrasting visions for the future direction of the country. Trotsky sought to implement a policy of permanent revolution, which was predicated on the notion that the Soviet Union would not be able to survive in a socialist character when surrounded by hostile governments and therefore concluded that it was necessary to actively support similar revolutions in the more advanced capitalist countries. Stalin, however, argued that such a foreign policy would not be feasible with the capabilities then possessed by the Soviet Union and that it would invite the country's destruction by engaging in armed conflict. Rather, Stalin argued that the Soviet Union should, in the meantime, pursue peaceful coexistence and invite foreign investment in order to develop the country's economy and build socialism in one country.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "Ultimately, Stalin gained the greatest support within the party, and Trotsky, who was increasingly viewed as a collaborator with outside forces in an effort to depose Stalin, was isolated and subsequently expelled from the party and exiled from the country in 1928. Stalin's policies henceforth would later become collectively known as Stalinism. In 1925, the name of the party was changed to the All-Union Communist Party (Bolsheviks), reflecting that the republics outside of Russia proper were no longer part of an all-encompassing Russian state. The acronym was usually transliterated as VKP(b), or sometimes VCP(b). Stalin sought to formalize the party's ideological outlook into a philosophical hybrid of the original ideas of Lenin with orthodox Marxism into what would be called Marxism–Leninism. Stalin's position as General Secretary became the top executive position within the party, giving Stalin significant authority over party and state policy.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "By the end of the 1920s, diplomatic relations with Western countries were deteriorating to the point that there was a growing fear of another allied attack on the Soviet Union. Within the country, the conditions of the NEP had enabled growing inequalities between increasingly wealthy strata and the remaining poor. The combination of these tensions led the party leadership to conclude that it was necessary for the government's survival to pursue a new policy that would centralize economic activity and accelerate industrialization. To do this, the first five-year plan was implemented in 1928. The plan doubled the industrial workforce, proletarianizing many of the peasants by removing them from their land and assembling them into urban centers. Peasants who remained in agricultural work were also made to have a similarly proletarian relationship to their labor through the policies of collectivization, which turned feudal-style farms into collective farms which would be in a cooperative nature under the direction of the state. These two shifts changed the base of Soviet society towards a more working-class alignment. The plan was fulfilled ahead of schedule in 1932.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "The success of industrialization in the Soviet Union led Western countries, such as the United States, to open diplomatic relations with the Soviet government. In 1933, after years of unsuccessful workers' revolutions (including a short-lived Bavarian Soviet Republic) and spiraling economic calamity, Adolf Hitler came to power in Germany, violently suppressing the revolutionary organizers and posing a direct threat to the Soviet Union that ideologically supported them. The threat of fascist sabotage and imminent attack greatly exacerbated the already existing tensions within the Soviet Union and the Communist Party. A wave of paranoia overtook Stalin and the party leadership and spread through Soviet society. Seeing potential enemies everywhere, leaders of the government security apparatuses began severe crackdowns known as the Great Purge. In total, hundreds of thousands of people, many of whom were posthumously recognized as innocent, were arrested and either sent to prison camps or executed. Also during this time, a campaign against religion was waged in which the Russian Orthodox Church, which had long been a political arm of Tsarism before the revolution, was ruthlessly repressed, organized religion was generally removed from public life and made into a completely private matter, with many churches, mosques and other shrines being repurposed or demolished.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "The Soviet Union was the first to warn of the impending danger of invasion from Nazi Germany to the international community. The Western powers, however, remained committed to maintaining peace and avoiding another war breaking out, many considering the Soviet Union's warnings to be an unwanted provocation. After many unsuccessful attempts to create an anti-fascist alliance among the Western countries, including trying to rally international support for the Spanish Republic in its struggle against a nationalist military coup which received supported from Germany and Italy, in 1939 the Soviet Union signed a non-aggression pact with Germany, later jointly invading Poland to fulfil a secret protocol of the pact, as well as occupying the Baltic States, this pact would be broken in June 1941 when the German military invaded the Soviet Union in the largest land invasion in history, beginning the Great Patriotic War.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "The Communist International was dissolved in 1943 after it was concluded that such an organization had failed to prevent the rise of fascism and the global war necessary to defeat it. After the 1945 Allied victory of World War II, the Party held to a doctrine of establishing socialist governments in the post-war occupied territories that would be administered by Communists loyal to Stalin's administration. The party also sought to expand its sphere of influence beyond the occupied territories, using proxy wars and espionage and providing training and funding to promote Communist elements abroad, leading to the establishment of the Cominform in 1947.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "In 1949, the Communists emerged victorious in the Chinese Civil War, causing an extreme shift in the global balance of forces and greatly escalating tensions between the Communists and the Western powers, fueling the Cold War. In Europe, Yugoslavia, under the leadership of Josip Broz Tito, acquired the territory of Trieste, causing conflict both with the Western powers and with the Stalin administration who opposed such a provocative move. Furthermore, the Yugoslav Communists actively supported the Greek Communists during their civil war, further frustrating the Soviet government. These tensions led to a Tito–Stalin split, which marked the beginning of international sectarian division within the world communist movement.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "After Stalin's death, Nikita Khrushchev rose to the top post by overcoming political adversaries, including Lavrentiy Beria and Georgy Malenkov, in a power struggle. In 1955, Khrushchev achieved the demotion of Malenkov and secured his own position as Soviet leader. Early in his rule and with the support of several members of the Presidium, Khrushchev initiated the Thaw, which effectively ended the Stalinist mass terror of the prior decades and reduced socio-economic oppression considerably. At the 20th Congress held in 1956, Khrushchev denounced Stalin's crimes, being careful to omit any reference to complicity by any sitting Presidium members. His economic policies, while bringing about improvements, were not enough to fix the fundamental problems of the Soviet economy. The standard of living for ordinary citizens did increase; 108 million people moved into new housing between 1956 and 1965.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "Khrushchev's foreign policies led to the Sino-Soviet split, in part a consequence of his public denunciation of Stalin. Khrushchev improved relations with Josip Broz Tito's League of Communists of Yugoslavia but failed to establish the close, party-to-party relations that he wanted. While the Thaw reduced political oppression at home, it led to unintended consequences abroad, such as the Hungarian Revolution of 1956 and unrest in Poland, where the local citizenry now felt confident enough to rebel against Soviet control. Khrushchev also failed to improve Soviet relations with the West, partially because of a hawkish military stance. In the aftermath of the Cuban Missile Crisis, Khrushchev's position within the party was substantially weakened. Shortly before his eventual ousting, he tried to introduce economic reforms championed by Evsei Liberman, a Soviet economist, which tried to implement market mechanisms into the planned economy.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "Khrushchev was ousted on 14 October 1964 in a Central Committee plenum that officially cited his inability to listen to others, his failure in consulting with the members of the Presidium, his establishment of a cult of personality, his economic mismanagement, and his anti-party reforms as the reasons he was no longer fit to remain as head of the party. He was succeeded in office by Leonid Brezhnev as First Secretary and Alexei Kosygin as Chairman of the Council of Ministers.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "The Brezhnev era began with a rejection of Khrushchevism in virtually every arena except one: continued opposition to Stalinist methods of terror and political violence. Khrushchev's policies were criticized as voluntarism, and the Brezhnev period saw the rise of neo-Stalinism. While Stalin was never rehabilitated during this period, the most conservative journals in the country were allowed to highlight positive features of his rule.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "At the 23rd Congress held in 1966, the names of the office of First Secretary and the body of the Presidium reverted to their original names: General Secretary and Politburo, respectively. At the start of his premiership, Kosygin experimented with economic reforms similar to those championed by Malenkov, including prioritizing light industry over heavy industry to increase the production of consumer goods. Similar reforms were introduced in Hungary under the name New Economic Mechanism; however, with the rise to power of Alexander Dubček in Czechoslovakia, who called for the establishment of \"socialism with a human face\", all non-conformist reform attempts in the Soviet Union were stopped.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "During his rule, Brezhnev supported détente, a passive weakening of animosity with the West with the goal of improving political and economic relations. However, by the 25th Congress held in 1976, political, economic and social problems within the Soviet Union began to mount, and the Brezhnev administration found itself in an increasingly difficult position. The previous year, Brezhnev's health began to deteriorate. He became addicted to painkillers and needed to take increasingly more potent medications to attend official meetings. Because of the \"trust in cadres\" policy implemented by his administration, the CPSU leadership evolved into a gerontocracy. At the end of Brezhnev's rule, problems continued to amount; in 1979 he consented to the Soviet intervention in Afghanistan to save the embattled communist regime there and supported the oppression of the Solidarity movement in Poland. As problems grew at home and abroad, Brezhnev was increasingly ineffective in responding to the growing criticism of the Soviet Union by Western leaders, most prominently by US Presidents Jimmy Carter and Ronald Reagan, and UK Prime Minister Margaret Thatcher. The CPSU, which had wishfully interpreted the financial crisis of the 1970s as the beginning of the end of capitalism, found its country falling far behind the West in its economic development. Brezhnev died on 10 November 1982, and was succeeded by Yuri Andropov on 12 November.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "Andropov, a staunch anti-Stalinist, chaired the KGB during most of Brezhnev's reign. He had appointed several reformers to leadership positions in the KGB, many of whom later became leading officials under Gorbachev. Andropov supported increased openness in the press, particularly regarding the challenges facing the Soviet Union. Andropov was in office briefly, but he appointed a number of reformers, including Yegor Ligachev, Nikolay Ryzhkov and Mikhail Gorbachev, to important positions. He also supported a crackdown on absenteeism and corruption. Andropov had intended to let Gorbachev succeed him in office, but Konstantin Chernenko and his supporters suppressed the paragraph in the letter which called for Gorbachev's elevation. Andropov died on 9 February 1984 and was succeeded by Chernenko. The elderly Cherneko was in poor health throughout his short leadership and was unable to consolidate power; effective control of the party organization remained with Gorbachev. Chernenko died on 10 March 1985 and was succeeded in office by Gorbachev the next day.",
"title": "History"
},
{
"paragraph_id": 25,
"text": "The Politburo did not want another elderly and frail leader after its previous three leaders, and elected Gorbachev as CPSU General Secretary on 11 March 1985, one day after Chernenko's death. When Gorbachev acceded to power, the Soviet Union was stagnating but was stable and might have continued largely unchanged into the 21st century if not for Gorbachev's reforms.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "Gorbachev conducted a significant personnel reshuffling of the CPSU leadership, forcing old party conservatives out of office. In 1985 and early 1986 the new leadership of the party called for uskoreniye (Russian: ускоре́ние, lit. 'acceleration'). Gorbachev reinvigorated the party ideology, adding new concepts and updating older ones. Positive consequences of this included the allowance of \"pluralism of thought\" and a call for the establishment of \"socialist pluralism\" (literally, socialist democracy). Gorbachev introduced a policy of glasnost (Russian: гла́сность, meaning openness or transparency) in 1986, which led to a wave of unintended democratization. According to the British researcher of Russian affairs, Archie Brown, the democratization of the Soviet Union brought mixed blessings to Gorbachev; it helped him to weaken his conservative opponents within the party but brought out accumulated grievances which had been suppressed during the previous decades.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "In reaction to these changes, a conservative movement gained momentum in 1987 in response to Boris Yeltsin's dismissal as First Secretary of the CPSU Moscow City Committee. On 13 March 1988, Nina Andreyeva, a university lecturer, wrote an article titled \"I Cannot Forsake My Principles\". The publication was planned to occur when both Gorbachev and his protege Alexander Yakovlev were visiting foreign countries. In their place, Yegor Ligachev led the party organization and told journalists that the article was \"a benchmark for what we need in our ideology today\". Upon Gorbachev's return, the article was discussed at length during a Politburo meeting; it was revealed that nearly half of its members were sympathetic to the letter and opposed further reforms which could weaken the party. The meeting lasted for two days, but on 5 April a Politburo resolution responded with a point-by-point rebuttal to Andreyeva's article.",
"title": "History"
},
{
"paragraph_id": 28,
"text": "Gorbachev convened the 19th Party Conference in June 1988. He criticized leading party conservatives—Ligachev, Andrei Gromyko and Mikhail Solomentsev. In turn, conservative delegates attacked Gorbachev and the reformers. According to Brown, there had not been as much open discussion and dissent at a party meeting since the early 1920s.",
"title": "History"
},
{
"paragraph_id": 29,
"text": "Despite the deep-seated opposition to further reform, the CPSU remained hierarchical; the conservatives acceded to Gorbachev's demands in deference to his position as the CPSU General Secretary. The 19th Conference approved the establishment of the Congress of People's Deputies (CPD) and allowed for contested elections between the CPSU and independent candidates. Other organized parties were not allowed. The CPD was elected in 1989; one-third of the seats were appointed by the CPSU and other public organizations to sustain the Soviet one-party state. The elections were democratic, but most elected CPD members opposed any more radical reform. The elections featured the highest electoral turnout in Russian history; no election before or since had a higher participation rate. An organized opposition was established within the legislature under the name Inter-Regional Group of Deputies by dissident Andrei Sakharov. An unintended consequence of these reforms was the increased anti-CPSU pressure; in March 1990, at a session of the Supreme Soviet of the Soviet Union, the party was forced to relinquish its political monopoly of power, in effect turning the Soviet Union into a liberal democracy.",
"title": "History"
},
{
"paragraph_id": 30,
"text": "The CPSU's demise began in March 1990, when state bodies eclipsed party elements in power. From then until the Soviet Union's disestablishment, Gorbachev ruled the country through the newly created post of President of the Soviet Union. Following this, the central party apparatus did not play a practical role in Soviet affairs. Gorbachev had become independent from the Politburo and faced few constraints from party leaders. In the summer of 1990 the party convened the 28th Congress. A new Politburo was elected, previous incumbents (except Gorbachev and Vladimir Ivashko, the CPSU Deputy General Secretary) were removed. Later that year, the party began work on a new program with a working title, \"Towards a Humane, Democratic Socialism\". According to Brown, the program reflected Gorbachev's journey from an orthodox communist to a European social democrat. The freedoms of thought and organization which Gorbachev allowed led to a rise in nationalism in the Soviet republics, indirectly weakening the central authorities. In response to this, a referendum took place in 1991, in which most of the union republics voted to preserve the union in a different form. In reaction to this, conservative elements within the CPSU launched the August 1991 coup, which overthrew Gorbachev but failed to preserve the Soviet Union. When Gorbachev resumed control (21 August 1991) after the coup's collapse, he resigned from the CPSU on 24 August 1991 and operations were handed over to Ivashko. On 29 August 1991 the activity of the CPSU was suspended throughout the country, on 6 November Yeltsin banned the activities of the party in Russia and Gorbachev resigned from the presidency on 25 December; the following day the Soviet of Republics dissolved the Soviet Union.",
"title": "History"
},
{
"paragraph_id": 31,
"text": "On 30 November 1992, the Constitutional Court of the Russian Federation recognized the ban on the activities of the primary organizations of the Communist Party, formed on a territorial basis, as inconsistent with the Constitution of Russia, but upheld the dissolution of the governing structures of the CPSU and the governing structures of its republican organization—the Communist Party of the RSFSR.",
"title": "History"
},
{
"paragraph_id": 32,
"text": "After the dissolution of the Soviet Union in 1991, Russian adherents to the CPSU tradition, particularly as it existed before Gorbachev, reorganized themselves within the Communist Party of the Russian Federation (CPRF). Today a wide range of parties in Russia present themselves as successors of CPSU. Several of them have used the name \"CPSU\". However, the CPRF is generally seen (due to its massive size) as the heir of the CPSU in Russia. Additionally, the CPRF was initially founded as the Communist Party of the Russian SFSR in 1990 (sometime before the abolition of the CPSU) and was seen by critics as a \"Russian-nationalist\" counterpart to the CPSU.",
"title": "History"
},
{
"paragraph_id": 33,
"text": "The style of governance in the party alternated between collective leadership and a cult of personality. Collective leadership split power between the Politburo, the Central Committee, and the Council of Ministers to hinder any attempts to create a one-man dominance over the Soviet political system. By contrast, Stalin's period as the leader was characterized by an extensive cult of personality. Regardless of leadership style, all political power in the Soviet Union was concentrated in the organization of the CPSU.",
"title": "Governing style"
},
{
"paragraph_id": 34,
"text": "Democratic centralism is an organizational principle conceived by Lenin. According to Soviet pronouncements, democratic centralism was distinguished from \"bureaucratic centralism\", which referred to high-handed formulae without knowledge or discussion. In democratic centralism, decisions are taken after discussions, but once the general party line has been formed, discussion on the subject must cease. No member or organizational institution may dissent on a policy after it has been agreed upon by the party's governing body; to do so would lead to expulsion from the party (formalized at the 10th Congress). Because of this stance, Lenin initiated a ban on factions, which was approved at the 10th Congress.",
"title": "Governing style"
},
{
"paragraph_id": 35,
"text": "Lenin believed that democratic centralism safeguarded both party unity and ideological correctness. He conceived of the system after the events of 1917 when several socialist parties \"deformed\" themselves and actively began supporting nationalist sentiments. Lenin intended that the devotion to policy required by centralism would protect the parties from such revisionist ills and bourgeois deformation of socialism. Lenin supported the notion of a highly centralized vanguard party, in which ordinary party members elected the local party committee, the local party committee elected the regional committee, the regional committee elected the Central Committee, and the Central Committee elected the Politburo, Orgburo, and the Secretariat. Lenin believed that the party needed to be ruled from the center and have at its disposal power to mobilize party members at will. This system was later introduced in communist parties abroad through the Communist International (Comintern).",
"title": "Governing style"
},
{
"paragraph_id": 36,
"text": "A central tenet of Leninism was that of the vanguard party. In a capitalist society, the party was to represent the interests of the working class and all of those who were exploited by capitalism in general; however, it was not to become a part of that class. Lenin decided that the party's sole responsibility was to articulate and plan the long-term interests of the oppressed classes. It was not responsible for the daily grievances of those classes; that was the responsibility of the trade unions. According to Lenin, the party and the oppressed classes could never become one because the party was responsible for leading the oppressed classes to victory. The basic idea was that a small group of organized people could wield power disproportionate to their size with superior organizational skills. Despite this, until the end of his life, Lenin warned of the danger that the party could be taken over by bureaucrats, by a small clique, or by an individual. Toward the end of his life, he criticized the bureaucratic inertia of certain officials and admitted to problems with some of the party's control structures, which were to supervise organizational life.",
"title": "Governing style"
},
{
"paragraph_id": 37,
"text": "The Congress, nominally the highest organ of the party, was convened every five years. Leading up to the October Revolution and until Stalin's consolidation of power, the Congress was the party's main decision-making body. However, after Stalin's ascension, the Congresses became largely symbolic. CPSU leaders used Congresses as a propaganda and control tool. The most noteworthy Congress since the 1930s was the 20th Congress, in which Khrushchev denounced Stalin in a speech titled \"The Personality Cult and its Consequences\".",
"title": "Organization"
},
{
"paragraph_id": 38,
"text": "Despite delegates to Congresses losing their powers to criticize or remove party leadership, the Congresses functioned as a form of elite-mass communication. They were occasions for the party leadership to express the party line over the next five years to ordinary CPSU members and the general public. The information provided was general, ensuring that party leadership retained the ability to make specific policy changes as they saw fit.",
"title": "Organization"
},
{
"paragraph_id": 39,
"text": "The Congresses also provided the party leadership with formal legitimacy by providing a mechanism for the election of new members and the retirement of old members who had lost favor. The elections at Congresses were all predetermined and the candidates who stood for seats to the Central Committee and the Central Auditing Commission were approved beforehand by the Politburo and the Secretariat. A Congress could also provide a platform for the announcement of new ideological concepts. For instance, at the 22nd Congress, Khrushchev announced that the Soviet Union would see \"communism in twenty years\"— a position later retracted.",
"title": "Organization"
},
{
"paragraph_id": 40,
"text": "A Conference, officially referred to as an All-Union Conference, was convened between Congresses by the Central Committee to discuss party policy and to make personnel changes within the Central Committee. 19 conferences were convened during the CPSU's existence. The 19th Congress held in 1952 removed the clause in the party's statute which stipulated that a party Conference could be convened. The clause was reinstated at the 23rd Congress, which was held in 1966.",
"title": "Organization"
},
{
"paragraph_id": 41,
"text": "The Central Committee was a collective body elected at the annual party congress. It was mandated to meet at least twice a year to act as the party's supreme governing body. Membership of the Central Committee increased from 71 full members in 1934 to 287 in 1976. Central Committee members were elected to the seats because of the offices they held, not on their personal merit. Because of this, the Central Committee was commonly considered an indicator for Sovietologists to study the strength of the different institutions. The Politburo was elected by and reported to the Central Committee. Besides the Politburo, the Central Committee also elected the Secretariat and the General Secretary—the de facto leader of the Soviet Union. In 1919–1952, the Orgburo was also elected in the same manner as the Politburo and the Secretariat by the plenums of the Central Committee. In between Central Committee plenums, the Politburo and the Secretariat were legally empowered to make decisions on its behalf. The Central Committee or the Politburo and/or Secretariat on its behalf could issue nationwide decisions; decisions on behalf of the party were transmitted from the top to the bottom.",
"title": "Organization"
},
{
"paragraph_id": 42,
"text": "Under Lenin, the Central Committee functioned much as the Politburo did during the post-Stalin era, serving as the party's governing body. However, as the membership in the Central Committee increased, its role was eclipsed by the Politburo. Between Congresses, the Central Committee functioned as the Soviet leadership's source of legitimacy. The decline in the Central Committee's standing began in the 1920s; it was reduced to a compliant body of the Party leadership during the Great Purge. According to party rules, the Central Committee was to convene at least twice a year to discuss political matters—but not matters relating to military policy. The body remained largely symbolic after Stalin's consolidation; leading party officials rarely attended meetings of the Central Committee.",
"title": "Organization"
},
{
"paragraph_id": 43,
"text": "The Central Auditing Commission (CAC) was elected by the party Congresses and reported only to the party Congress. It had about as many members as the Central Committee. It was responsible for supervising the expeditious and proper handling of affairs by the central bodies of the Party; it audited the accounts of the Treasury and the enterprises of the Central Committee. It was also responsible for supervising the Central Committee apparatus, making sure that its directives were implemented and that Central Committee directives complied with the party Statute.",
"title": "Organization"
},
{
"paragraph_id": 44,
"text": "The Statute (also referred to as the Rules, Charter and Constitution) was the party's by-laws and controlled life within the CPSU. The 1st Statute was adopted at the 2nd Congress of the Russian Social Democratic Labour Party—the forerunner of the CPSU. How the Statute was to be structured and organized led to a schism within the party, leading to the establishment of two competing factions; Bolsheviks (literally majority) and Mensheviks (literally minority). The 1st Statute was based upon Lenin's idea of a centralized vanguard party. The 4th Congress, despite a majority of Menshevik delegates, added the concept of democratic centralism to Article 2 of the Statute. The 1st Statute lasted until 1919 when the 8th Congress adopted the 2nd Statute. It was nearly five times as long as the 1st Statute and contained 66 articles. It was amended at the 9th Congress. At the 11th Congress, the 3rd Statute was adopted with only minor amendments being made. New statutes were approved at the 17th and 18th Congresses respectively. The last party statute, which existed until the dissolution of the CPSU, was adopted at the 22nd Congress.",
"title": "Organization"
},
{
"paragraph_id": 45,
"text": "General Secretary of the Central Committee was the title given to the overall leader of the party. The office was synonymous with the leader of the Soviet Union after Joseph Stalin's consolidation of power in the 1920s. Stalin used the office of General Secretary to create a strong power base for himself. The office was formally titled First Secretary between 1953 and 1966.",
"title": "Organization"
},
{
"paragraph_id": 46,
"text": "The Political Bureau (Politburo), known as the Presidium from 1952 to 1966, was the highest party organ when the Congress and the Central Committee were not in session. Until the 19th Conference in 1988, the Politburo alongside the Secretariat controlled appointments and dismissals nationwide. In the post-Stalin period, the Politburo controlled the Central Committee apparatus through two channels; the General Department distributed the Politburo's orders to the Central Committee departments and through the personnel overlap which existed within the Politburo and the Secretariat. This personnel overlap gave the CPSU General Secretary a way of strengthening his position within the Politburo through the Secretariat. Kirill Mazurov, Politburo member from 1965 to 1978, accused Brezhnev of turning the Politburo into a \"second echelon\" of power. He accomplished this by discussing policies before Politburo meetings with Mikhail Suslov, Andrei Kirilenko, Fyodor Kulakov and Dmitriy Ustinov among others, who held seats both in the Politburo and the Secretariat. Mazurov's claim was later verified by Nikolai Ryzhkov, the Chairman of the Council of Ministers under Gorbachev. Ryzhkov said that Politburo meetings lasted only 15 minutes because the people close to Brezhnev had already decided what was to be approved.",
"title": "Organization"
},
{
"paragraph_id": 47,
"text": "The Politburo was abolished and replaced by a Presidium in 1952 at the 19th Congress. In the aftermath the 19th Congress and the 1st Plenum of the 19th Central Committee, Stalin ordered the creation of the Bureau of the Presidium, which acted as the standing committee of the Presidium. On 6 March 1953, one day after Stalin's death, a new and smaller Presidium was elected, and the Bureau of the Presidium was abolished in a joint session with the Presidium of the Supreme Soviet and the Council of Ministers.",
"title": "Organization"
},
{
"paragraph_id": 48,
"text": "Until 1990, the CPSU General Secretary acted as the informal chairman of the Politburo. During the first decades of the CPSU's existence, the Politburo was officially chaired by the Chairman of the Council of People's Commissars; first by Lenin, then by Aleksey Rykov, Molotov, Stalin and Malenkov. After 1922, when Lenin was incapacitated, Lev Kamenev as Deputy Chairman of the Council of People's Commissars chaired the Politburo's meetings. This tradition lasted until Khrushchev's consolidation of power. In the first post-Stalin years, when Malenkov chaired Politburo meetings, Khrushchev as First Secretary signed all Central Committee documents into force. From 1954 until 1958, Khrushchev chaired the Politburo as First Secretary, but in 1958 he dismissed and succeeded Nikolai Bulganin as Chairman of the Council of Ministers. During this period, the informal position of Second Secretary—later formalized as Deputy General Secretary—was established. The Second Secretary became responsible for chairing the Secretariat in place of the General Secretary. When the General Secretary could not chair the meetings of the Politburo, the Second Secretary would take his place. This system survived until the dissolution of the CPSU in 1991.",
"title": "Organization"
},
{
"paragraph_id": 49,
"text": "To be elected to the Politburo, a member had to serve in the Central Committee. The Central Committee elected the Politburo in the aftermath of a party Congress. Members of the Central Committee were given a predetermined list of candidates for the Politburo having only one candidate for each seat; for this reason, the election of the Politburo was usually passed unanimously. The greater the power held by the sitting CPSU General Secretary, the higher the chance that the Politburo membership would be approved.",
"title": "Organization"
},
{
"paragraph_id": 50,
"text": "The Secretariat headed the CPSU's central apparatus and was solely responsible for the development and implementation of party policies. It was legally empowered to take over the duties and functions of the Central Committee when it was not in the plenum (did not hold a meeting). Many members of the Secretariat concurrently held a seat in the Politburo. According to a Soviet textbook on party procedures, the Secretariat's role was that of \"leadership of current work, chiefly in the realm of personnel selection and in the organization of the verification of fulfillment of party-state decisions\". \"Selections of personnel\" (Russian: podbor kadrov) in this instance meant the maintenance of general standards and the criteria for selecting various personnel. \"Verification of fulfillment\" (Russian: proverka ispolneniia) of party and state decisions meant that the Secretariat instructed other bodies.",
"title": "Organization"
},
{
"paragraph_id": 51,
"text": "The powers of the Secretariat were weakened under Mikhail Gorbachev, and the Central Committee Commissions took over the functions of the Secretariat in 1988. Yegor Ligachev, a Secretariat member, said that the changes completely destroyed the Secretariat's hold on power and made the body almost superfluous. Because of this, the Secretariat rarely met during the next two years. It was revitalized at the 28th Party Congress in 1990, and the Deputy General Secretary became the official head of the Secretariat.",
"title": "Organization"
},
{
"paragraph_id": 52,
"text": "The Organizational Bureau, or Orgburo, existed from 1919 to 1952 and was one of three leading bodies of the party when the Central Committee was not in session. It was responsible for \"organizational questions, the recruitment, and allocation of personnel, the coordination of activities of the party, government and social organizations (e.g., trade unions and youth organizations), improvement to the party's structure, the distribution of information and reports within the party\". The 19th Congress abolished the Orgburo and its duties and responsibilities were taken over by the Secretariat. At the beginning, the Orgburo held three meetings a week and reported to the Central Committee every second week. Lenin described the relation between the Politburo and the Orgburo as \"the Orgburo allocates forces, while the Politburo decides policy\". A decision of the Orgburo was implemented by the Secretariat. However, the Secretariat could make decisions in the Orgburo's name without consulting its members, but if one Orgburo member objected to a Secretariat resolution, the resolution would not be implemented. In the 1920s, if the Central Committee could not convene the Politburo and the Orgburo would hold a joint session in its place.",
"title": "Organization"
},
{
"paragraph_id": 53,
"text": "The Central Control Commission (CCC) functioned as the party's supreme court. The CCC was established at the 9th All-Russian Conference in September 1920, but rules organizing its procedure were not enacted before the 10th Congress. The 10th Congress formally established the CCC on all party levels and stated that it could only be elected at a party congress or a party conference. The CCC and the CCs were formally independent but had to make decisions through the party committees at their level, which led them in practice to lose their administrative independence. At first, the primary responsibility of the CCs was to respond to party complaints, focusing mostly on party complaints of factionalism and bureaucratism. At the 11th Congress, the brief of the CCs was expanded; it became responsible for overseeing party discipline. In a bid to further centralize the powers of the CCC, a Presidium of the CCC, which functioned in a similar manner to the Politburo in relation to the Central Committee, was established in 1923. At the 18th Congress, party rules regarding the CCC were changed; it was now elected by the Central Committee and was subordinate to the Central Committee.",
"title": "Organization"
},
{
"paragraph_id": 54,
"text": "CCC members could not concurrently be members of the Central Committee. To create an organizational link between the CCC and other central-level organs, the 9th All-Russian Conference created the joint CC–CCC plenums. The CCC was a powerful organ; the 10th Congress allowed it to expel full and candidate Central Committee members and members of their subordinate organs if two-thirds of attendants at a CC–CCC plenum voted for such. At its first such session in 1921, Lenin tried to persuade the joint plenum to expel Alexander Shliapnikov from the party; instead of expelling him, Shliapnikov was given a severe reprimand.",
"title": "Organization"
},
{
"paragraph_id": 55,
"text": "The leader of a department was usually given the title \"head\" (Russian: zaveduiuschchii). In practice, the Secretariat had a major say in the running of the departments; for example, five of eleven secretaries headed their own departments in 1978. Normally, specific secretaries were given supervising duties over one or more departments. Each department established its own cells—called sections—which specialized in one or more fields. During the Gorbachev era, a variety of departments made up the Central Committee apparatus. The Party Building and Cadre Work Department assigned party personnel in the nomenklatura system. The State and Legal Department supervised the armed forces, KGB, the Ministry of Internal Affairs, the trade unions, and the Procuracy. Before 1989, the Central Committee had several departments, but some were abolished that year. Among these departments was the Economics Department that was responsible for the economy as a whole, one for machine building, one for the chemical industry, etc. The party abolished these departments to remove itself from the day-to-day management of the economy in favor of government bodies and a greater role for the market, as a part of the perestroika process. In their place, Gorbachev called for the creations of commissions with the same responsibilities as departments, but giving more independence from the state apparatus. This change was approved at the 19th Conference, which was held in 1988. Six commissions were established by late 1988.",
"title": "Organization"
},
{
"paragraph_id": 56,
"text": "Pravda (The Truth) was the leading newspaper in the Soviet Union. The Organizational Department of the Central Committee was the only organ empowered to dismiss Pravda editors. In 1905, Pravda began as a project by members of the Ukrainian Social Democratic Labour Party. Leon Trotsky was approached about the possibility of running the new paper because of his previous work on Ukrainian newspaper Kyivan Thought. The first issue of Pravda was published on 3 October 1908 in Lvov, where it continued until the publication of the sixth issue in November 1909, when the operation was moved to Vienna, Austria-Hungary. During the Russian Civil War, sales of Pravda were curtailed by Izvestia, the government run newspaper. At the time, the average reading figure for Pravda was 130,000. This Vienna-based newspaper published its last issue in 1912 and was succeeded the same year by a new newspaper dominated by the Bolsheviks, also called Pravda, which was headquartered in St. Petersburg. The paper's main goal was to promote Marxist–Leninist philosophy and expose the lies of the bourgeoisie. In 1975, the paper reached a circulation of 10.6 million. It is currently owned by the Communist Party of the Russian Federation.",
"title": "Organization"
},
{
"paragraph_id": 57,
"text": "The Higher Party School (HPS) was the organ responsible for teaching cadres in the Soviet Union. It was the successor of the Communist Academy, which was established in 1918. The HPS was established in 1939 as the Moscow Higher Party School and it offered its students a two-year training course for becoming a CPSU official. It was reorganized in 1956 to that it could offer more specialized ideological training. In 1956, the school in Moscow was opened for students from socialist countries outside the Soviet Union. The Moscow Higher Party School was the party school with the highest standing. The school itself had eleven faculties until a 1972 Central Committee resolution demanded a reorganization of the curriculum. The first regional HPS outside Moscow was established in 1946 and by the early 1950s there were 70 Higher Party Schools. During the reorganization drive of 1956, Khrushchev closed 13 of them and reclassified 29 as inter-republican and inter-oblast schools.",
"title": "Organization"
},
{
"paragraph_id": 58,
"text": "The lowest organ above the primary party organization (PPO) was the district level. Every two years, the local PPO would elect delegates to the district-level party conference, which was overseen by a secretary from a higher party level. The conference elected a Party Committee and First Secretary and re-declared the district's commitment to the CPSU's program. In between conferences, the \"raion\" party committee—commonly referred to as \"raikom\"—was vested with ultimate authority. It convened at least six times a year to discuss party directives and to oversee the implementation of party policies in their respective districts, to oversee the implementation of party directives at the PPO-level, and to issue directives to PPOs. 75–80 percent of raikom members were full members, while the remaining 20–25 were non-voting, candidate members. Raikom members were commonly from the state sector, party sector, Komsomol or the trade unions.",
"title": "Organization"
},
{
"paragraph_id": 59,
"text": "Day-to-day responsibility of the raikom was handed over to a Politburo, which usually composed of 12 members. The district-level First Secretary chaired the meetings of the local Politburo and the raikom, and was the direct link between the district and the higher party echelons. The First Secretary was responsible for the smooth running of operations. The raikom was headed by the local apparat—the local agitation department or industry department. A raikom usually had no more than 4 or 5 departments, each of which was responsible for overseeing the work of the state sector but would not interfere in their work.",
"title": "Organization"
},
{
"paragraph_id": 60,
"text": "This system remained identical at all other levels of the CPSU hierarchy. The other levels were cities, oblasts (regions) and republics. The district-level elected delegates to a conference held at least every three years to elect the party committee. The only difference between the oblast and the district level was that the oblast had its own Secretariat and had more departments at its disposal. The oblast's party committee in turn elected delegates to the republican-level Congress, which was held every five years. The Congress then elected the Central Committee of the republic, which in turn elected a First Secretary and a Politburo. Until 1990, the Russian Soviet Federative Socialist Republic was the only republic that did not have its own republican branch, being instead represented by the CPSU Central Committee.",
"title": "Organization"
},
{
"paragraph_id": 61,
"text": "The primary party organization (PPO) was the lowest level in the CPSU hierarchy. PPOs were organized cells consisting of three or more members. A PPO could exist anywhere; for example, in a factory or a student dormitory. They functioned as the party's \"eyes and ears\" at the lowest level and were used to mobilize support for party policies. All CPSU members had to be a member of a local PPO. The size of a PPO varied from three people to several hundred, depending upon its setting. In a large enterprise, a PPO usually had several hundred members. In such cases, the PPO was divided into bureaus based upon production-units. Each PPO was led by an executive committee and an executive committee secretary. Each executive committee is responsible for the PPO executive committee and its secretary. In small PPOs, members met periodically to mainly discuss party policies, ideology, or practical matters. In such a case, the PPO secretary was responsible for collecting party dues, reporting to higher organs, and maintaining the party records. A secretary could be elected democratically through a secret ballot, but that was not often the case; in 1979, only 88 out of the over 400,000 PPOs were elected in this fashion. The remainder were chosen by a higher party organ and ratified by the general meetings of the PPO. The PPO general meeting was responsible for electing delegates to the party conference at either the district- or town-level, depending on where the PPO was located.",
"title": "Organization"
},
{
"paragraph_id": 62,
"text": "Membership of the party was not open. To become a party member, one had to be approved by various committees, and one's past was closely scrutinized. As generations grew up having known nothing before the Soviet Union, party membership became something one generally achieved after passing a series of stages. Children would join the Young Pioneers and, at the age of 14, might graduate to the Komsomol (Young Communist League). Ultimately, as an adult, if one had shown the proper adherence to party discipline—or had the right connections, one would become a member of the Communist Party itself. Membership of the party carried obligations as it expected Komsomol and CPSU members to pay dues and to carry out appropriate assignments and \"social tasks\" (общественная работа).",
"title": "Organization"
},
{
"paragraph_id": 63,
"text": "In 1918, party membership was approximately 200,000. In the late 1920s under Stalin, the party engaged in an intensive recruitment campaign, the \"Lenin Levy\", resulting in new members referred to as the Lenin Enrolment, from both the working class and rural areas. This represented an attempt to \"proletarianize\" the party and an attempt by Stalin to strengthen his base by outnumbering the Old Bolsheviks and reducing their influence in the Party. In 1925, the party had 1,025,000 members in a Soviet population of 147 million. In 1927, membership had risen to 1,200,000. During the collectivization campaign and industrialization campaigns of the first five-year plan from 1929 to 1933, party membership grew rapidly to approximately 3.5 million members. However, party leaders suspected that the mass intake of new members had allowed \"social-alien elements\" to penetrate the party's ranks and document verifications of membership ensued in 1933 and 1935, removing supposedly unreliable members. Meanwhile, the party closed its ranks to new members from 1933 to November 1936. Even after the reopening of party recruiting, membership fell to 1.9 million by 1939. Nicholas DeWitt gives 2.307 million members in 1939, including candidate members, compared with 1.535 million in 1929 and 6.3 million in 1947. In 1986, the CPSU had over 19 million members—approximately 10% of the Soviet Union's adult population. Over 44% of party members were classified as industrial workers and 12% as collective farmers. The CPSU had party organizations in 14 of the Soviet Union's 15 republics. The Russian Soviet Federative Socialist Republic itself had no separate Communist Party until 1990 because the CPSU controlled affairs there directly.",
"title": "Organization"
},
{
"paragraph_id": 64,
"text": "The All-Union Leninist Communist Youth League, commonly referred to as Komsomol, was the party's youth wing. The Komsomol acted under the direction of the CPSU Central Committee. It was responsible for indoctrinating youths in communist ideology and organizing social events. It was closely modeled on the CPSU; nominally the highest body was the Congress, followed by the Central Committee, Secretariat and the Politburo. The Komsomol participated in nationwide policy-making by appointing members to the collegiums of the Ministry of Culture, the Ministry of Higher and Specialized Secondary Education, the Ministry of Education and the State Committee for Physical Culture and Sports. The organization's newspaper was the Komsomolskaya Pravda. The First Secretary and the Second Secretary were commonly members of the Central Committee but were never elected to the Politburo. However, at the republican level, several Komsomol first secretaries were appointed to the Politburo.",
"title": "Organization"
},
{
"paragraph_id": 65,
"text": "Marxism–Leninism was the cornerstone of Soviet ideology. It explained and legitimized the CPSU's right to rule while explaining its role as a vanguard party. For instance, the ideology explained that the CPSU's policies, even if they were unpopular, were correct because the party was enlightened. It was represented as the only truth in Soviet society; the party rejected the notion of multiple truths. Marxism–Leninism was used to justify CPSU rule and Soviet policy, but it was not used as a means to an end. The relationship between ideology and decision-making was at best ambivalent; most policy decisions were made in the light of the continued, permanent development of Marxism–Leninism. Marxism–Leninism as the only truth could not—by its very nature—become outdated.",
"title": "Ideology"
},
{
"paragraph_id": 66,
"text": "Despite having evolved over the years, Marxism–Leninism had several central tenets. The main tenet was the party's status as the sole ruling party. The 1977 Constitution referred to the party as \"The leading and guiding force of Soviet society, and the nucleus of its political system, of all state and public organizations, is the Communist Party of the Soviet Union\". State socialism was essential and from Stalin until Gorbachev, official discourse considered that private social and economic activity retarding the development of collective consciousness and the economy. Gorbachev supported privatization to a degree but based his policies on Lenin's and Nikolai Bukharin's opinions of the New Economic Policy of the 1920s, and supported complete state ownership over the commanding heights of the economy. Unlike liberalism, Marxism–Leninism stressed the role of the individual as a member of a collective rather than the importance of the individual. Individuals only had the right to freedom of expression if it safeguarded the interests of a collective. For instance, the 1977 Constitution stated that every person had the right to express his or her opinion, but the opinion could only be expressed if it was in accordance with the \"general interests of Soviet society\". The number of rights granted to an individual was decided by the state, and the state could remove these rights if it saw fit. Soviet Marxism–Leninism justified nationalism; the Soviet media portrayed every victory of the state as a victory for the communist movement as a whole. Largely, Soviet nationalism was based upon ethnic Russian nationalism. Marxism–Leninism stressed the importance of the worldwide conflict between capitalism and socialism; the Soviet press wrote about progressive and reactionary forces while claiming that socialism was on the verge of victory and that the \"correlations of forces\" were in the Soviet Union's favor. The ideology professed state atheism and party members were consequently not allowed to be religious.",
"title": "Ideology"
},
{
"paragraph_id": 67,
"text": "Marxism–Leninism believed in the feasibility of a communist mode of production. All policies were justifiable if it contributed to the Soviet Union's achievement of that stage.",
"title": "Ideology"
},
{
"paragraph_id": 68,
"text": "In Marxist philosophy, Leninism is the body of political theory for the democratic organization of a revolutionary vanguard party and the achievement of a dictatorship of the proletariat as a political prelude to the establishment of the socialist mode of production developed by Lenin. Since Karl Marx rarely, if ever wrote about how the socialist mode of production would function, these tasks were left for Lenin to solve. Lenin's main contribution to Marxist thought is the concept of the vanguard party of the working class. He conceived the vanguard party as a highly knit, centralized organization that was led by intellectuals rather than by the working class itself. The CPSU was open only to a small number of workers because the workers in Russia still had not developed class consciousness and needed to be educated to reach such a state. Lenin believed that the vanguard party could initiate policies in the name of the working class even if the working class did not support them. The vanguard party would know what was best for the workers because the party functionaries had attained consciousness.",
"title": "Ideology"
},
{
"paragraph_id": 69,
"text": "Lenin, in light of the Marx's theory of the state (which views the state as an oppressive organ of the ruling class), had no qualms of forcing change upon the country. He viewed the dictatorship of the proletariat, rather than the dictatorship of the bourgeoisie, to be the dictatorship of the majority. The repressive powers of the state were to be used to transform the country, and to strip of the former ruling class of their wealth. Lenin believed that the transition from the capitalist mode of production to the socialist mode of production would last for a long period. According to some authors, Leninism was by definition authoritarian. In contrast to Marx, who believed that the socialist revolution would comprise and be led by the working class alone, Lenin argued that a socialist revolution did not necessarily need to be led or to comprise the working class alone. Instead, he said that a revolution needed to be led by the oppressed classes of society, which in the case of Russia was the peasant class.",
"title": "Ideology"
},
{
"paragraph_id": 70,
"text": "Stalinism, while not an ideology per se, refers to Stalin's thoughts and policies. Stalin's introduction of the concept \"Socialism in One Country\" in 1924 was an important moment in Soviet ideological discourse. According to Stalin, the Soviet Union did not need a socialist world revolution to construct a socialist society. Four years later, Stalin initiated his \"Second Revolution\" with the introduction of state socialism and central planning. In the early 1930s, he initiated the collectivization of Soviet agriculture by de-privatizing agriculture and creating peasant cooperatives rather than making it the responsibility of the state. With the initiation of his \"Second Revolution\", Stalin launched the \"Cult of Lenin\"—a cult of personality centered upon himself. The name of the city of Petrograd was changed to Leningrad, the town of Lenin's birth was renamed Ulyanov (Lenin's birth-name), the Order of Lenin became the highest state award and portraits of Lenin were hung in public squares, workplaces and elsewhere. The increasing bureaucracy which followed the introduction of a state socialist economy was at complete odds with the Marxist notion of \"the withering away of the state\". Stalin explained the reasoning behind it at the 16th Congress held in 1930;",
"title": "Ideology"
},
{
"paragraph_id": 71,
"text": "We stand for the strengthening of the dictatorship of the proletariat, which represents the mightiest and most powerful authority of all forms of State that have ever existed. The highest development of the State power for the withering away of State power —this is the Marxian formula. Is this contradictory? Yes, it is contradictory. But this contradiction springs from life itself and reflects completely Marxist dialectic.",
"title": "Ideology"
},
{
"paragraph_id": 72,
"text": "At the 1939 18th Congress, Stalin abandoned the idea that the state would wither away. In its place, he expressed confidence that the state would exist, even if the Soviet Union reached communism, as long as it was encircled by capitalism. Two key concepts were created in the latter half of his rule; the \"two camps\" theory and the \"capitalist encirclement\" theory. The threat of capitalism was used to strengthen Stalin's personal powers and Soviet propaganda began making a direct link with Stalin and stability in society, saying that the country would crumble without the leader. Stalin deviated greatly from classical Marxism on the subject of \"subjective factors\"; Stalin said that party members of all ranks had to profess fanatic adherence to the party's line and ideology, if not, those policies would fail.",
"title": "Ideology"
},
{
"paragraph_id": 73,
"text": "Either the dictatorship of the landowners and capitalists or the dictatorship of the proletariat ... There is no middle course ... There is no middle course anywhere in the world, nor can there be.",
"title": "Ideology"
},
{
"paragraph_id": 74,
"text": "— Lenin, claiming that people had only two choices between two different, but distinct class dictatorships",
"title": "Ideology"
},
{
"paragraph_id": 75,
"text": "Lenin, supporting Marx's theory of the state, believed democracy to be unattainable anywhere in the world before the proletariat seized power. According to Marxist theory, the state is a vehicle for oppression and is headed by a ruling class. He believed that by his time, the only viable solution was dictatorship since the war was heading into a final conflict between the \"progressive forces of socialism and the degenerate forces of capitalism\". The Russian Revolution was by 1917, already a failure according to its original aim, which was to act as an inspiration for a world revolution. The initial anti-statist posture and the active campaigning for direct democracy was replaced because of Russia's level of development with—according to their own assessments—dictatorship. The reasoning was Russia's lack of development, its status as the sole socialist state in the world, its encirclement by imperialist powers, and its internal encirclement by the peasantry.",
"title": "Ideology"
},
{
"paragraph_id": 76,
"text": "Marx and Lenin did not care if a bourgeois state was ruled in accordance with a republican, parliamentary or a constitutional monarchical system since this did not change the overall situation. These systems, even if they were ruled by a small clique or ruled through mass participation, were all dictatorships of the bourgeoisie who implemented policies in defense of capitalism. However, there was a difference; after the failures of the world revolutions, Lenin argued that this did not necessarily have to change under the dictatorship of the proletariat. The reasoning came from practical considerations; the majority of the country's inhabitants were not communists, neither could the party reintroduce parliamentary democracy because that was not in synchronization with its ideology and would lead to the party losing power. He, therefore, concluded that the form of government has nothing to do with the nature of the dictatorship of the proletariat.",
"title": "Ideology"
},
{
"paragraph_id": 77,
"text": "Bukharin and Trotsky agreed with Lenin; both said that the revolution had destroyed the old but had failed to create anything new. Lenin had now concluded that the dictatorship of the proletariat would not alter the relationship of power between men, but would rather \"transform their productive relations so that, in the long run, the realm of necessity could be overcome and, with that, genuine social freedom realized\". From 1920 to 1921, Soviet leaders and ideologists began differentiating between socialism and communism; hitherto the two terms had been used interchangeably and used to explain the same things. From then, the two terms had different meanings; Russia was in transition from capitalism to socialism—referred to interchangeably under Lenin as the dictatorship of the proletariat, socialism was the intermediate stage to communism and communism was considered the last stage of social development. By now, the party leaders believed that because of Russia's backward state, universal mass participation and true democracy could only take form in the last stage.",
"title": "Ideology"
},
{
"paragraph_id": 78,
"text": "[Because] the proletariat is still so divided, so degraded, so corrupted in parts ... that an organization taking in the whole proletariat cannot directly exercise proletarian dictatorship. It can be exercised only by a vanguard that has absorbed the revolutionary energy of the class.",
"title": "Ideology"
},
{
"paragraph_id": 79,
"text": "— Lenin, explaining why the regime had become increasingly dictatorial",
"title": "Ideology"
},
{
"paragraph_id": 80,
"text": "In early Bolshevik discourse, the term \"dictatorship of the proletariat\" was of little significance, and the few times it was mentioned it was likened to the form of government which had existed in the Paris Commune. However, with the ensuing Russian Civil War and the social and material devastation that followed, its meaning altered from commune-type democracy to rule by iron-discipline. By now, Lenin had concluded that only a proletarian regime as oppressive as its opponents could survive in this world. The powers previously bestowed upon the Soviets were now given to the Council of People's Commissars, the central government, which was, in turn, to be governed by \"an army of steeled revolutionary Communists [by Communists he referred to the Party]\". In a letter to Gavril Myasnikov in late 1920, Lenin explained his new interpretation of the term \"dictatorship of the proletariat\":",
"title": "Ideology"
},
{
"paragraph_id": 81,
"text": "Dictatorship means nothing more nor less than authority untrammeled by any laws, absolutely unrestricted by any rules whatever, and based directly on force. The term 'dictatorship' has no other meaning but this.",
"title": "Ideology"
},
{
"paragraph_id": 82,
"text": "Lenin justified these policies by claiming that all states were class states by nature and that these states were maintained through class struggle. This meant that the dictatorship of the proletariat in the Soviet Union could only be \"won and maintained by the use of violence against the bourgeoisie\". The main problem with this analysis is that the party came to view anyone opposing or holding alternate views of the party as bourgeois. Its worst enemy remained the moderates, which were considered to be \"the real agents of the bourgeoisie in the working-class movement, the labor lieutenants of the capitalist class\". The term \"bourgeoisie\" became synonymous with \"opponent\" and with people who disagreed with the party in general. These oppressive measures led to another reinterpretation of the dictatorship of the proletariat and socialism in general; it was now defined as a purely economic system. Slogans and theoretical works about democratic mass participation and collective decision-making were now replaced with texts which supported authoritarian management. Considering the situation, the party believed it had to use the same powers as the bourgeoisie to transform Russia; there was no alternative. Lenin began arguing that the proletariat, like the bourgeoisie, did not have a single preference for a form of government and because of that, the dictatorship was acceptable to both the party and the proletariat. In a meeting with party officials, Lenin stated—in line with his economist view of socialism—that \"Industry is indispensable, democracy is not\", further arguing that \"we [the Party] do not promise any democracy or any freedom\".",
"title": "Ideology"
},
{
"paragraph_id": 83,
"text": "Imperialism is capitalism at the stage of development at which the dominance of monopolies and finance capital is established; in which the export of capital has acquired pronounced importance; in which the division of the world among the international trusts as begun; in which divisions of all territories of the globe among the biggest capitalist powers has been completed.",
"title": "Ideology"
},
{
"paragraph_id": 84,
"text": "— Lenin, citing the main features of capitalism in the age of imperialism in Imperialism: the Highest Stage of Capitalism",
"title": "Ideology"
},
{
"paragraph_id": 85,
"text": "The Marxist theory on imperialism was conceived by Lenin in his book, Imperialism: the Highest Stage of Capitalism (published in 1917). It was written in response to the theoretical crisis within Marxist thought, which occurred due to capitalism's recovery in the 19th century. According to Lenin, imperialism was a specific stage of development of capitalism; a stage he referred to as state monopoly capitalism. The Marxist movement was split on how to solve capitalism's resurgence after the great depression of the late 19th century. Eduard Bernstein from the Social Democratic Party of Germany (SDP) considered capitalism's revitalization as proof that it was evolving into a more humane system, adding that the basic aims of socialists were not to overthrow the state but to take power through elections. Karl Kautsky, also from the SDP, held a highly dogmatic view; he said that there was no crisis within Marxist theory. Both of them denied or belittled the role of class contradictions in society after the crisis. In contrast, Lenin believed that the resurgence was the beginning of a new phase of capitalism; this stage was created because of a strengthening of class contradiction, not because of its reduction.",
"title": "Ideology"
},
{
"paragraph_id": 86,
"text": "Lenin did not know when the imperialist stage of capitalism began; he said it would be foolish to look for a specific year, however, said it began at the beginning of the 20th century (at least in Europe). Lenin believed that the economic crisis of 1900 accelerated and intensified the concentration of industry and banking, which led to the transformation of the finance capital connection to industry into the monopoly of large banks. In Imperialism: the Highest Stage of Capitalism, Lenin wrote; \"the twentieth century marks the turning point from the old capitalism to the new, from the domination of capital in general to the domination of finance capital\". Lenin defines imperialism as the monopoly stage of capitalism.",
"title": "Ideology"
},
{
"paragraph_id": 87,
"text": "The 1986 Party Program claimed the Tsarist regime collapsed because the contradictions of imperialism, which he held to be the gap \"between the social nature of production and the private capitalist form of appropriation\" manifesting itself in wars, economic recessions, and exploitation of the working class, were strongest in Russia. Imperialism was held to have caused the Russo-Japanese War and the First World War, with the 1905 Russian Revolution presented as \"the first people's revolution of the imperialist epoch\" and the October Revolution is said to have been rooted in \"the nationwide movement against imperialist war and for peace.\"",
"title": "Ideology"
},
{
"paragraph_id": 88,
"text": "The loss by imperialism of its dominating role in world affairs and the utmost expansion of the sphere in which the laws of socialist foreign policy operate are a distinctive feature of the present stage of social development. The main direction of this development is toward even greater changes in the correlation of forces in the world arena in favor of socialism.",
"title": "Ideology"
},
{
"paragraph_id": 89,
"text": "— Nikolay Inozemtsev, a Soviet foreign policy analyst, referring to series of events (which he believed) would lead to the ultimate victory of socialism",
"title": "Ideology"
},
{
"paragraph_id": 90,
"text": "\"Peaceful coexistence\" was an ideological concept introduced under Khrushchev's rule. While the concept has been interpreted by fellow communists as proposing an end to the conflict between the systems of capitalism and socialism, Khrushchev saw it as a continuation of the conflict in every area except in the military field. The concept said that the two systems were developed \"by way of diametrically opposed laws\", which led to \"opposite principles in foreign policy\".",
"title": "Ideology"
},
{
"paragraph_id": 91,
"text": "Peaceful coexistence was steeped in Leninist and Stalinist thought. Lenin believed that international politics were dominated by class struggle; in the 1940s Stalin stressed the growing polarization which was occurring in the capitalist and socialist systems. Khrushchev's peaceful coexistence was based on practical changes which had occurred; he accused the old \"two camp\" theory of neglecting the non-aligned movement and the national liberation movements. Khrushchev considered these \"grey areas\", in which the conflict between capitalism and socialism would be fought. He still stressed that the main contradiction in international relations were those of capitalism and socialism. The Soviet Government under Khrushchev stressed the importance of peaceful coexistence, saying that it had to form the basis of Soviet foreign policy. Failure to do, they believed, would lead to nuclear conflict. Despite this, Soviet theorists still considered peaceful coexistence to be a continuation of the class struggle between the capitalist and socialist worlds, but not based on armed conflict. Khrushchev believed that the conflict, in its current phase, was mainly economic.",
"title": "Ideology"
},
{
"paragraph_id": 92,
"text": "The emphasis on peaceful coexistence did not mean that the Soviet Union accepted a static world with clear lines. It continued to uphold the creed that socialism was inevitable and they sincerely believed that the world had reached a stage in which the \"correlations of forces\" were moving towards socialism. With the establishment of socialist regimes in Eastern Europe and Asia, Soviet foreign policy planners believed that capitalism had lost its dominance as an economic system.",
"title": "Ideology"
},
{
"paragraph_id": 93,
"text": "The concept of \"Socialism in One Country\" was conceived by Stalin in his struggle against Leon Trotsky and his concept of permanent revolution. In 1924, Trotsky published his pamphlet Lessons of October, in which he stated that socialism in the Soviet Union would fail because of the backward state of economic development unless a world revolution began. Stalin responded to Trotsky's pamphlet with his article, \"October and Comrade Trotsky's Theory of Permanent Revolution\". In it, Stalin stated that he did not believe an inevitable conflict between the working class and the peasants would take place, and that \"socialism in one country is completely possible and probable\". Stalin held the view common among most Bolsheviks at the time; there was a possibility of real success for socialism in the Soviet Union despite the country's backwardness and international isolation. While Grigoriy Zinoviev, Lev Kamenev and Nikolai Bukharin—together with Stalin—opposed Trotsky's theory of permanent revolution, their views on the way socialism could be built diverged.",
"title": "Ideology"
},
{
"paragraph_id": 94,
"text": "According to Bukharin, Zinoviev and Kamenev supported the resolution of the 14th Conference held in 1925, which stated that \"we cannot complete the building of socialism due to our technological backwardness\". Despite this cynical attitude, Zinoviev and Kamenev believed that a defective form of socialism could be constructed. At the 14th Conference, Stalin reiterated his position that socialism in one country was feasible despite the capitalist blockade of the Soviet Union. After the conference, Stalin wrote \"Concerning the Results of the XIV Conference of the RCP(b)\", in which he stated that the peasantry would not turn against the socialist system because they had a self-interest in preserving it. Stalin said the contradictions which arose within the peasantry during the socialist transition could \"be overcome by our own efforts\". He concluded that the only viable threat to socialism in the Soviet Union was a military intervention.",
"title": "Ideology"
},
{
"paragraph_id": 95,
"text": "In late 1925, Stalin received a letter from a party official which stated that his position of \"Socialism in One Country\" was in contradiction with Friedrich Engels' writings on the subject. Stalin countered that Engels' writings reflected \"the era of pre-monopoly capitalism, the pre-imperialist era when there were not yet the conditions of an uneven, abrupt development of the capitalist countries\". From 1925, Bukharin began writing extensively on the subject and in 1926, Stalin wrote On Questions of Leninism, which contains his best-known writings on the subject. With the publishing of Leninism, Trotsky began countering Bukharin's and Stalin's arguments, writing that socialism in one country was only possible only in the short term, and said that without a world revolution it would be impossible to safeguard the Soviet Union from the \"restoration of bourgeois relations\". Zinoviev disagreed with Trotsky and Bukharin, and Stalin; he maintained Lenin's position from 1917 to 1922 and continued to say that only a defective form of socialism could be constructed in the Soviet Union without a world revolution. Bukharin began arguing for the creation of an autarkic economic model, while Trotsky said that the Soviet Union had to participate in the international division of labor to develop. In contrast to Trotsky and Bukharin, in 1938, Stalin said that a world revolution was impossible and that Engels was wrong on the matter. At the 18th Congress, Stalin took the theory to its inevitable conclusion, saying that the communist mode of production could be conceived in one country. He rationalized this by saying that the state could exist in a communist society as long as the Soviet Union was encircled by capitalism. However, with the establishment of socialist regimes in Eastern Europe, Stalin said that socialism in one country was only possible in a large country like the Soviet Union and that to survive, the other states had to follow the Soviet line.",
"title": "Ideology"
},
{
"paragraph_id": 96,
"text": "There were few, if any, who believed that the Soviet Union was on the verge of collapse by 1985. The economy was stagnating, but stable enough for the Soviet Union to continue into the 21st century. The political situation was calm because of twenty years of systematic repression against any threat to the country and one-party rule, and the Soviet Union was in its peak of influence in world affairs. The immediate causes for the Soviet Union's dissolution were the policies and thoughts of Mikhail Gorbachev, the CPSU General Secretary. His policies of perestroika and glasnost tried to revitalize the Soviet economy and the social and political culture of the country. Throughout his rule, he put more emphasis on democratizing the Soviet Union because he believed it had lost its moral legitimacy to rule. These policies led to the collapse of the communist regimes in Eastern Europe and indirectly destabilized Gorbachev's and the CPSU's control over the Soviet Union. Archie Brown said:",
"title": "Reasons for demise"
},
{
"paragraph_id": 97,
"text": "The expectations of, again most notably, Lithuanians, Estonians, and Latvians were enormously enhanced by what they saw happening in the 'outer empire' [Eastern Europe], and they began to believe that they could remove themselves from the 'inner empire'. In truth, a democratized Soviet Union was incompatible with denial of the Baltic states' independence for, to the extent that those Soviet republics became democratic, their opposition to remaining in a political entity whose center was Moscow would become increasingly evident. Yet, it was not preordained that the entire Soviet Union would break up.",
"title": "Reasons for demise"
},
{
"paragraph_id": 98,
"text": "However, Brown said that the system did not need to collapse or to do so in the way it did. The democratization from above weakened the party's control over the country and put it on the defensive. Brown added that a different leader than Gorbachev would probably have oppressed the opposition and continued with economic reform. Nonetheless, Gorbachev accepted that the people sought a different road and consented to the Soviet Union's dissolution in 1991. He said that because of its peaceful collapse, the fall of Soviet communism is \"one of the great success stories of 20th-century politics\". According to Lars T. Lih, the Soviet Union collapsed because people stopped believing in its ideology. He wrote:",
"title": "Reasons for demise"
},
{
"paragraph_id": 99,
"text": "When in 1991 the Soviet Union collapsed not with a bang but a whimper, this unexpected outcome was partly the result of the previous disenchantments of the narrative of class leadership. The Soviet Union had always been based on the fervent belief in this narrative in its various permutations. When the binding power of the narrative dissolved, the Soviet Union itself dissolved.",
"title": "Reasons for demise"
},
{
"paragraph_id": 100,
"text": "The first research into the collapse of the Soviet Union and the Eastern Bloc were very simple and did not take into account several factors. However, these examinations became more advanced by the 1990s, and unlike most Western scholarship, which focuses on the role of Gorbachev and his reform efforts, the Chinese Communist Party (CCP) examined \"core (political) life and death issues\" so that it could learn from them and not make the same mistakes. Following the CPSU's demise and the Soviet Union's collapse, the CCP's analysis began examining systematic causes. Several leading CCP officials began hailing Khrushchev's rule, saying that he was the first reformer and that if he had continued after 1964, the Soviet Union would not have witnessed the Era of Stagnation began under Brezhnev and continued under Yuri Andropov and Konstantin Chernenko. The main economic failure was that the political leadership did not pursue any reforms to tackle the economic malaise that had taken hold, dismissing certain techniques as capitalist, and never disentangling the planned economy from socialism. Xu Zhixin from the CASS Institute of Eastern Europe, Russia, and Central Asia, argued that Soviet planners laid too much emphasis on heavy industry, which led to shortages of consumer goods. Unlike his counterparts, Xu argued that the shortages of consumer goods were not an error but \"was a consciously planned feature of the system\". Other CPSU failures were pursuing the policy of state socialism, the high spending on the military-industrial complex, a low tax base, and the subsidizing of the economy. The CCP argued that when Gorbachev came to power and introduced his economic reforms, they were \"too little, too late, and too fast\".",
"title": "Reasons for demise"
},
{
"paragraph_id": 101,
"text": "In my opinion, the fundamental cause of the drastic changes in the Soviet Union and East European countries at the end of the 1980s and beginning of the 1990s was the loss of dynamism of the Stalin–Soviet Socialist Model ... The demerits of this model were institutional and fundamental—not a single reform after Stalin's death brought fundamental changes to the Stalin–Soviet Socialist Model. This model, with its problems and contradictions accumulating by day, was finally in crisis, and the people of the Soviet Union and Eastern Europe lost their confidence in it. The [only] way out was to abandon the Stalin–Soviet Socialist Model and seek another road for social development.",
"title": "Reasons for demise"
},
{
"paragraph_id": 102,
"text": "— Lu Nanqun, a Sovietologist from CASS",
"title": "Reasons for demise"
},
{
"paragraph_id": 103,
"text": "While most CCP researchers criticize the CPSU's economic policies, many have criticized what they see as \"Soviet totalitarianism\". They accuse Joseph Stalin of creating a system of mass terror, intimidation, annulling the democracy component of democratic centralism and emphasizing centralism, which led to the creation of an inner-party dictatorship. Other points were Russian nationalism, a lack of separation between the party and state bureaucracies, suppression of non-Russian ethnicities, distortion of the economy through the introduction of over-centralization and the collectivization of agriculture. According to CCP researcher Xiao Guisen, Stalin's policies led to \"stunted economic growth, tight surveillance of society, a lack of democracy in decision-making, an absence of the rule of law, the burden of bureaucracy, the CPSU's alienation from people's concerns, and an accumulation of ethnic tensions\". Stalin's effect on ideology was also criticized; several researchers accused his policies of being \"leftist\", \"dogmatist\" and a deviation \"from true Marxism–Leninism.\" He is criticized for initiating the \"bastardization of Leninism\", of deviating from true democratic centralism by establishing a one-man rule and destroying all inner-party consultation, of misinterpreting Lenin's theory of imperialism and of supporting foreign revolutionary movements only when the Soviet Union could get something out of it. Yu Sui, a CCP theoretician, said that \"the collapse of the Soviet Union and CPSU is a punishment for its past wrongs!\" Similarly, Brezhnev, Mikhail Suslov, Alexei Kosygin and Konstantin Chernenko have been criticized for being \"dogmatic, ossified, inflexible, [for having a] bureaucratic ideology and thinking\", while Yuri Andropov is depicted by some of having the potential of becoming a new Khrushchev if he had not died early.",
"title": "Reasons for demise"
},
{
"paragraph_id": 104,
"text": "While the CCP concur with Gorbachev's assessment that the CPSU needed internal reform, they do not agree on how it was implemented, criticizing his idea of \"humanistic and democratic socialism\", of negating the leading role of the CPSU, of negating Marxism, of negating the analysis of class contradictions and class struggle, and of negating the \"ultimate socialist goal of realizing communism\". Unlike the other Soviet leaders, Gorbachev is criticized for pursuing the wrong reformist policies and for being too flexible and too rightist. The CCP Organization Department said, \"What Gorbachev in fact did was not to transform the CPSU by correct principles—indeed the Soviet Communist Party needed transformation—but instead he, step-by-step, and ultimately, eroded the ruling party's dominance in ideological, political and organizational aspects\".",
"title": "Reasons for demise"
},
{
"paragraph_id": 105,
"text": "The CPSU was also criticized for not taking enough care in building the primary party organization and not having inner-party democracy. Others, more radically, concur with Milovan Đilas assessment, saying that a new class was established within the central party leadership of the CPSU and that a \"corrupt and privileged class\" had developed because of the nomenklatura system. Others criticized the special privileges bestowed on the CPSU elite, the nomenklatura system—which some said had decayed continuously since Stalin's rule—and the relationship between the Soviet military and the CPSU. Unlike in China, the Soviet military was a state institution whereas in China it is a party (and state) institution. The CCP criticizes the CPSU of pursuing Soviet imperialism in its foreign policies.",
"title": "Reasons for demise"
}
] | The Communist Party of the Soviet Union (CPSU), at some points known as the Russian Communist Party (Bolsheviks) and All-Union Communist Party (Bolsheviks), sometimes referred to as the Soviet Communist Party (SCP), and formerly known as the Bolshevik Party, was the founding and ruling political party of the Soviet Union. The CPSU was the sole governing party of the Soviet Union until 1990 when the Congress of People's Deputies modified Article 6 of the 1977 Soviet Constitution, which had previously granted the CPSU a monopoly over the political system. The party's main ideology was Marxism-Leninism. The party started in 1898 as the Russian Social Democratic Labour Party. In 1903, that party split into a Menshevik (minority) and Bolshevik (majority) faction; the latter, led by Vladimir Lenin, is the direct ancestor of the CPSU and is the party that seized power in the October Revolution of 1917. Its activities were suspended on Soviet territory 74 years later, on 29 August 1991, soon after a failed coup d'état by conservative CPSU leaders against the reforming Soviet president and party general secretary Mikhail Gorbachev. The CPSU was a communist party based on democratic centralism. This principle, conceived by Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. The highest body within the CPSU was the Party Congress, which convened every five years. When the Congress was not in session, the Central Committee was the highest body. Because the Central Committee met twice a year, most day-to-day duties and responsibilities were vested in the Politburo,, the Secretariat and the Orgburo. The party leader was the head of government and held the office of either General Secretary, Premier or head of state, or two of the three offices concurrently, but never all three at the same time. The party leader was the de facto chairman of the CPSU Politburo and chief executive of the Soviet Union. The tension between the party and the state for the shifting focus of power was never formally resolved. After the founding of the Soviet Union in 1922, Lenin had introduced a mixed economy, commonly referred to as the New Economic Policy, which allowed for capitalist practices to resume under the Communist Party dictation in order to develop the necessary conditions for socialism to become a practical pursuit in the economically undeveloped country. In 1929, as Joseph Stalin became the leader of the party, Marxism–Leninism, a fusion of the original ideas of German philosopher and economic theorist Karl Marx, and Lenin, became formalized as the party's guiding ideology and would remain so throughout the rest of its existence. The party pursued state socialism, under which all industries were nationalized, and a command economy was implemented. After recovering from the Second World War, reforms were implemented which decentralized economic planning and liberalized Soviet society in general under Nikita Khrushchev. By 1980, various factors, including the continuing Cold War, and ongoing nuclear arms race with the United States and other Western European powers and unaddressed inefficiencies in the economy, led to stagnant economic growth under Alexei Kosygin, and further with Leonid Brezhnev and growing disillusionment. After the younger, vigorous Mikhail Gorbachev assumed leadership in 1985, rapid steps were taken to transform the tottering Soviet economic system in the direction of a market economy once again. Gorbachev and his allies envisioned the introduction of an economy similar to Lenin's earlier New Economic Policy through a program of "perestroika", or restructuring, but their reforms, along with the institution of free multi-candidate elections led to a decline in the party's power, and after the dissolution of the Soviet Union, the banning of the party by later last RSFSR President Boris Yeltsin and subsequent first President of an evolving democratic and free-market economy of the successor Russian Federation. A number of causes contributed to CPSU's loss of control and the dissolution of the Soviet Union during the early 1990s. Some historians have written that Gorbachev's policy of "glasnost" was the root cause, noting that it weakened the party's control over society. Gorbachev maintained that perestroika without glasnost was doomed to failure anyway. Others have blamed the economic stagnation and subsequent loss of faith by the general populace in communist ideology. In the final years of the CPSU's existence, the Communist Parties of the federal subjects of Russia were united into the Communist Party of the Russian Soviet Federative Socialist Republic (RSFSR). After the CPSU's demise, the Communist Parties of the Union Republics became independent and underwent various separate paths of reform. In Russia, the Communist Party of the Russian Federation emerged and has been regarded as the inheritor of the CPSU's old Bolshevik legacy into the present day. | 2001-11-29T13:53:14Z | 2023-12-31T03:35:25Z | [
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7,272 | Christianity and homosexuality | Within Christianity, there are a variety of views on sexual orientation and homosexuality. The view that various Bible passages speak of homosexuality as immoral or sinful emerged in the first millennium AD, and have since become entrenched in many Christian denominations through church doctrine and the wording of various translations of the Bible.
In the present day, there are a wide variety of views within Christianity on homosexuality and sexual orientation, with some scholars of Christianity contesting the notion that scripture speaks explicitly of homosexuality as a sin against God. Within a Christian denomination, individual believers and the groups they belong to may hold different views, and not all members of a denomination necessarily support their church's views on homosexuality. Most Christian denominations teach that homosexual behavior and acts are sinful. The Catholic and Eastern Orthodox Churches officially condemn homosexual activity as sin. Various mainline Protestant denominations have taken a supportive stance towards blessing homosexual clergy and same-sex marriage while others have not.
The Hebrew Bible and its traditional interpretations in Judaism and Christianity have historically affirmed and endorsed a patriarchal and heteronormative approach towards human sexuality, favouring exclusively penetrative vaginal intercourse between men and women within the boundaries of marriage over all other forms of human sexual activity, including autoeroticism, masturbation, oral sex, non-penetrative and non-heterosexual sexual intercourse (all of which have been labeled as "sodomy" at various times).
They have believed and taught that such behaviors are forbidden because they are considered sinful, and further compared to or derived from the behavior of the alleged residents of Sodom and Gomorrah. However, the status of LGBT people in early Christianity is debated.
The history of Christianity and homosexuality has been much debated. Some maintain that the early Christian churches deplored same-sex relationships, while others maintain that they accepted them on the level of their heterosexual counterparts. These disagreements concern, in some cases, the translations of certain terms, or the meaning and context of some biblical passages.
The extent to which the Bible mentions the subject, whether or not it is condemned, and whether the various passages apply today, have become contentious topics in the 20th and 21st centuries. Significant debate has arisen over the proper interpretation of the Levitical code; the narrative of Sodom and Gomorrah; and various Pauline passages, and whether these verses condemn same-sex sexual activities.
The Catholic Church views as sinful any sexual act not related to procreation by a couple joined in marriage. The Church states that "homosexual tendencies" are "objectively disordered", but does not consider the tendency itself to be sinful but rather a temptation toward sin.
The Catechism of the Catholic Church states that "men and women who have deep-seated homosexual tendencies [...] must be accepted with respect, compassion, and sensitivity" and that "every sign of unjust discrimination in their regard should be avoided." The Church opposes criminal penalties against homosexuality. The Catholic Church requires those who are attracted to people of the same (or opposite) sex to practise chastity, because it teaches that sexuality should only be practised within marriage, which includes chaste sex as permanent, procreative, heterosexual, and monogamous. The Vatican distinguishes between "deep-seated homosexual tendencies" and the "expression of a transitory problem", in relation to ordination to the priesthood; saying in a 2005 document that homosexual tendencies "must be clearly overcome at least three years before ordination to the diaconate." A 2011 report based on telephone surveys of self-identified American Catholics conducted by the Public Religion Research Institute found that 56% believe that sexual relations between two people of the same sex are not sinful. Research indicates that the Catholic Church's teachings on sexuality are "a major source of conflict and distress" to LGBT Catholics.
In January 2018 German bishop Franz-Josef Bode of the Roman Catholic Diocese of Osnabrück, and in February 2018 German Roman Catholic cardinal Reinhard Marx, chairman of the German Bishops' Conference said in interviews with German journalists that blessing of same-sex unions is possible in Roman Catholic churches in Germany. In Austria blessing of same sex unions is performed in two churches located in the Roman Catholic Diocese of Linz. In 2021, the Congregation for the Doctrine of the Faith clarified that same-sex civil unions cannot be blessed.
On March 11, 2023, the Synodal Path with support of over 80 percentage of German Roman Catholic bishops allowed blessing ceremonies for same-sex couples in all 27 German Roman Catholic diocese. A similar decision had been taken a few months earlier by the Flemish bishops of the Episcopal Conference of Belgium. Both decisions received strong condemnation by the Holy See and by conservative Catholic clergy: Cardinal Pietro Parolin stated that the German bishops had no authority over the issue and Cardinal Wim Eijk urged Flemish bishops to withdraw their decision.
On December 18, 2023, blessings of same-sex couples in document Fiducia supplicans were approved by pope Francis and published by the Dicastery for the Doctrine of the Faith. However, "it is not a formal liturgical blessing and does not give the impression that the Catholic Church is blessing the union as if it were a marriage".
The Eastern Orthodox churches condemn homosexual acts. The Orthodox Church shares a long history of church teachings and canon law with the Catholic Church and has a similar conservative stance on homosexuality. Some Orthodox Church jurisdictions, such as the Orthodox Church in America, have taken the approach of welcoming people with "homosexual feelings and emotions", while encouraging them to work towards "overcoming its harmful effects in their lives", while not allowing the sacraments to people who seek to justify homosexual activity. Other Orthodox Churches, such as those in Eastern Europe and Greece, view homosexuality less favourably. The Greek Orthodox Archdiocese of America lists homosexuality along with fornication, adultery, and more because of the thinking that homosexuality breaks up the institution of marriage and family. A 2017 Pew Research Center poll found that the majority of Orthodox Christians in the Eastern European and former USSR states surveyed believe that homosexuality "should not be accepted by society"; 45% of Orthodox Christians in Greece and 31% in the United States answered the same way.
In July 2022, Archbishop Elpidophoros of America baptized two babies adopted by clothing designers Evanggelos Bousis and Peter Dundas, making him the first Greek Orthodox bishop to baptize children adopted by gay couples. According to the metropolitan in whose diocese the baptism took place (Antonios of Glyfada), Elpidophoros did not inform him in advance that the baptism in question was to be performed for a gay couple. Metropolitan Antonios reported Elpidophoros to the Holy Synod of the Church of Greece, which issued a formal protest to both Elpidophoros and the Ecumenical Patriarchate of Constantinople.
Certain other Christian denominations do not view monogamous same-sex relationships as sinful or immoral, and may bless such unions and consider them marriages. These include the United Church of Canada, the Presbyterian Church (USA), the United Church of Christ, all German Lutheran, reformed and united churches in EKD, all Swiss reformed churches, the Protestant Church in the Netherlands, the United Protestant Church in Belgium, the United Protestant Church of France, the Church of Denmark, the Church of Sweden, the Church of Iceland, the Church of Norway, and the Uniting Church in Australia. The Evangelical Lutheran Church of Finland also allows prayer for same-sex couples. The Metropolitan Community Church was founded specifically to serve the Christian LGBT community. The Global Alliance of Affirming Apostolic Pentecostals (GAAAP) traces its roots back to 1980, making it the oldest LGBT-affirming Apostolic Pentecostal denomination in existence. Another such organization is the Affirming Pentecostal Church International, currently the largest affirming Pentecostal organization, with churches in the US, UK, Central and South America, Europe and Africa.
LGBT-affirming denominations regard homosexuality as a natural occurrence. The United Church of Christ celebrates gay marriage, and some parts of the Anglican and Lutheran churches allow for the blessing of gay unions. The United Church of Canada also allows same-sex marriage, and views sexual orientation as a gift from God. Within the Anglican Communion, there are openly gay clergy; for example, Gene Robinson is an openly gay Bishop in the US Episcopal Church. Within the Lutheran communion, there are openly gay clergy, too; for example, bishop Eva Brunne is an openly lesbian bishop in the Church of Sweden. Such religious groups and denominations interpret scripture and doctrine in a way that leads them to accept that homosexuality is morally acceptable, and a natural occurrence. For example, in 1988 the United Church of Canada, that country's largest Protestant denomination, affirmed that "a) All persons, regardless of their sexual orientation, who profess Jesus Christ and obedience to Him, are welcome to be or become full members of the Church; and b) All members of the Church are eligible to be considered for the Ordered Ministry." In 2000, the Church's General Assembly further affirmed that "human sexual orientations, whether heterosexual or homosexual, are a gift from God and part of the marvelous diversity of creation."
In addition, some Christian denominations such as the Moravian Church, believe that the Bible speaks negatively of homosexual acts but, as research on the matter continues, the Moravian Church seeks to establish a policy on homosexuality and the ordination of homosexuals. In 2014, Moravian Church in Europe allowed blessings of same-sex unions.
Liberal Quakers, those in membership of Britain Yearly Meeting and Friends General Conference in the US approve of same-sex marriage and union. Quakers were the first Christian group in the United Kingdom to advocate for equal marriage and Quakers in Britain formally recognised same-sex relationships in 1963.
The United Methodist Church elected a lesbian bishop in 2016, and on 7 May 2018, the Council of Bishops proposed the One Church Plan, which would allow individual pastors and regional church bodies to decide whether to ordain LGBT clergy and perform same-sex weddings. On 26 February 2019, a special session of the General Conference rejected the One Church Plan and voted to strengthen its official opposition to same-sex marriages and ordaining openly LGBT clergy.
Since 1998, the Anglican Church has reassured people with same sex attraction they are loved by God and are welcomed as full members of the Body of Christ. The Church leadership has a variety of views in regard to homosexual expression and ordination. Some expressions of sexuality are considered sinful including "promiscuity, prostitution, incest, pornography, paedophilia, predatory sexual behaviour, and sadomasochism (all of which may be heterosexual and homosexual)". The Church is concerned with pressures on young people to engage sexually and encourages abstinence.
At the 13th Lambeth Conference in 1998, homosexuality was the most hotly debated issue. It was finally decided, by a vote of 526–70, to pass a resolution (1.10) calling for a "listening process" but stating (in an amendment passed by a vote of 389–190) that "homosexual practice" (not necessarily orientation) is "incompatible with Scripture". Reflecting on resolution 1.10 in the lead up to Lambeth 2022, Angela Tilby recalled the intervention of Bishop Michael Bourke, who successfully proposed an amendment which said: "We commit ourselves to listen to the experience of homosexual persons". Tilby considered that while the amendment had appeared inconsequential at the time, it had indeed been significant: she said that the idea of "patient listening" underpinned the Church of England's process "Living in Love and Faith".
Churches within Lutheranism hold stances on the issue ranging from labeling homosexual acts as sinful, to acceptance of homosexual relationships. For example, the Lutheran Church–Missouri Synod, the Lutheran Church of Australia, and the Wisconsin Evangelical Lutheran Synod recognize homosexual behavior as intrinsically sinful and seek to minister to those who are struggling with homosexual inclinations. However, the Church of Sweden, the Church of Denmark, the Church of Norway, or Lutheran churches of the Evangelical Church in Germany conducts same-sex marriages, while the Evangelical Lutheran Church in America and Evangelical Lutheran Church in Canada opens the ministry of the church to gay pastors and other professional workers living in committed relationships. The Ethiopian Evangelical Church Mekane Yesus, the Lutheran denomination in Ethiopia, and second largest non-united Lutheran denomination in the world, however, has taken a stand that marriage is inherently between a man and a woman, and has formally broken fellowship with the ELCA.
Some mainline Protestant denominations, such as the African Methodist churches, the Reformed Church in America, and the Presbyterian Church in America, Christian Reformed Church in North America also oppose LGBT relationships.
The Seventh-day Adventist Church "recognizes that every human being is valuable in the sight of God, and seeks to minister to all men and women [including homosexuals] in the spirit of Jesus," while maintaining that homosexual sex itself is forbidden in the Bible. "Jesus affirmed the dignity of all human beings and reached out compassionately to persons and families suffering the consequences of sin. He offered caring ministry and words of solace to struggling people, while differentiating His love for sinners from His clear teaching about sinful practices."
Conservative Quakers, those within Friends United Meeting and the Evangelical Friends International believe that sexual relations are condoned only in marriage, which they define to be between a man and a woman.
Confessional Lutheran churches teach that it is sinful to have homosexual desires, even if they do not lead to homosexual activity. The Doctrinal statement issued by the Wisconsin Evangelical Lutheran Synod states that making a distinction between homosexual orientation and the act of homosexuality is confusing:
We cannot limit the sin of homosexuality to deeds but not desires, any more than we can limit heterosexual sin to deeds but not desires. Scripture clearly includes desires and inclinations toward sinful actions in the category of sin (Mt 5:27–28). This is true of both homosexual and heterosexual sin.
However, confessional Lutherans also warn against selective morality which harshly condemns homosexuality while treating other sins more lightly.
The positions of the evangelical churches are varied, according to denominations.
Some evangelical denominations have adopted neutral positions, leaving the choice to local churches to decide for same-sex marriage.
Some Evangelical Christians regard homosexual acts as sinful and think they should not be accepted by society. They tend to interpret biblical verses on homosexual acts to mean that the heterosexual family was created by God to be the bedrock of civilization and that same-sex relationships contradict God's design for marriage and is not his will. Christians who oppose homosexual relationships sometimes argue that same-gender sexual activity is a sin.
In opposing interpretations of the Bible that are supportive of homosexual relationships, conservative Christians have argued for the reliability of the Bible, and the meaning of texts related to homosexual acts, while often seeing what they call the diminishing of the authority of the Bible by many homosexual authors as being ideologically driven.
As an alternative to a school-sponsored Day of Silence opposing bullying of LGBT students, conservative Christians organized a Golden Rule Initiative, where they passed out cards saying "As a follower of Christ, I believe that all people are created in the image of God and therefore deserve love and respect." Others created a Day of Dialogue to oppose what they believe is the silencing of Christian students who make public their opposition to homosexuality.
On 29 August 2017, the Council on Biblical Manhood and Womanhood released a manifesto on human sexuality known as the "Nashville Statement". The statement was signed by 150 evangelical leaders, and includes 14 points of belief.
It is in the fundamentalist conservative positions, that there are anti-gay activists on TV or radio who claim that homosexuality is the cause of many social problems, such as terrorism. Some evangelical churches in Uganda strongly oppose homosexuality and homosexuals. They have campaigned for laws criminalizing homosexuality. The generalization and use of prejudices to spread hatred of homosexual people are frequent.
Some churches have a moderate Conservative position. Although they do not approve homosexual practices, they show sympathy and respect for homosexuals. Churches thus see themselves as “welcoming, but not affirming”. This expression has its origin in the book Welcoming but Not Affirming: An Evangelical Response to Homosexuality published in 1998 by the American Baptist theologian Stanley Grenz.
The French Evangelical Alliance, a member of the European Evangelical Alliance and the World Evangelical Alliance, adopted on 12 October 2002, through its National Council, a document entitled Foi, espérance et homosexualité ("Faith, Hope and Homosexuality"), in which homophobia, hatred and rejection of homosexuals are condemned, but which denies homosexual practices and full church membership of unrepentant homosexuals and those who approve of these practices. In 2015, the Conseil national des évangéliques de France (French National Council of Evangelicals) reaffirmed its position on the issue by opposing marriage of same-sex couples, while not rejecting homosexuals, but wanting to offer them more than a blessing; an accompaniment and a welcome.
The French evangelical pastor Philippe Auzenet, a chaplain of the association Oser en parler, regularly intervenes on the subject in the media. It promotes dialogue and respect, as well as sensitization in order to better understand homosexuals. He also said in 2012 that Jesus would go to a gay bar, because he was going to all people with love.
There are some international evangelical associations that are gay-friendly, such as the Association of Welcoming and Affirming Baptists and Affirming Pentecostal Church International.
A 2014 survey reported that 43% of white evangelical American Christians between the ages of 18 and 33 supported same-sex marriage. Some evangelical churches accept homosexuality and celebrate gay weddings. The change in beliefs in favor of gay marriage in evangelical churches has certain consequences for them. Various churches thus received an excommunication from their Christian denomination for not respecting the confession of faith. Other churches have faced significant departures of members from their congregations, seeing their financial resources diminish.
Some evangelical associations have adopted neutral positions, leaving the choice to local churches to decide for same-sex marriage.
Most Mennonite associations hold a conservative position on homosexuality.
The Brethren Mennonite Council for LGBT Interests was founded in 1976 in the USA and has member churches of different associations in the USA and Canada.
The Mennonite Church Canada leaves the choice to each church for same-sex marriage.
The Mennonite Church in the Netherlands and the Mennonite Church USA permit same-sex marriage.
Most Baptist associations around the world hold a conservative view on homosexuality.
Some Baptist associations in the United States do not have official beliefs about marriage in a confession of faith and invoke congregationalism to leave the choice to each church to decide. This is the case of American Baptist Churches USA, Progressive National Baptist Convention, Cooperative Baptist Fellowship and National Baptist Convention, USA.
Some Baptist associations support same-sex marriage. The Alliance of Baptists (USA), the Canadian Association for Baptist Freedoms, the Aliança de Batistas do Brasil, the Fraternidad de Iglesias Bautistas de Cuba, and the Association of Welcoming and Affirming Baptists (international) all support same-sex marriage.
Most Pentecostal associations take a conservative stance on homosexuality.
Various international associations of the Gay Apostolic Pentecostals movement founded in the United States allow same-sex marriage.
Restorationist churches, such as Seventh-Day Adventists, generally teach that homosexuals are 'broken' and can be 'fixed'. Jehovah's Witnesses believe that "The Bible condemns sexual activity that is not between a husband and wife, whether it is homosexual or heterosexual conduct. (1 Corinthians 6:18) [...] While the Bible disapproves of homosexual acts, it does not condone hatred of homosexuals or homophobia. Instead, Christians are directed to "respect everyone."—1 Peter 2:17, Good News Translation." The Church of Jesus Christ of Latter-day Saints said in 2015 that it officially welcomes its gay and lesbian members, if they choose sexual abstinence. The Community of Christ, a branch of Mormonism, fully accepts LGBT persons, performs weddings for gay and lesbian couples, and ordains LGBT members. Within the Stone-Campbell aligned restorationist churches the views are divergent. The churches of Christ (A Capella) and the Independent Christian Churches/Churches of Christ mostly adhere to a very conservative ideology; socially, politically, and religiously and are generally not accepting of openly LGBT members and will not perform weddings for gay and lesbian couples. The Disciples of Christ, is fully accepting of LGBT persons, often performs weddings for gay and lesbian couples, and ordains LGBT members. The United Church of Christ is an officially "open and affirming" church. Other Restorationist churches such as Millerite churches, have taken mixed positions but are increasingly accepting with some of their congregations fully accepting LGBT persons in all aspects of religious and political life.
In the 20th century, theologians like Jürgen Moltmann, Hans Küng, John Robinson, Bishop David Jenkins, Don Cupitt, and Bishop Jack Spong challenged traditional theological positions and understandings of the Bible; following these developments some have suggested that passages have been mistranslated or that they do not refer to what is in the modern day understood as "homosexuality." Clay Witt, a minister in the Metropolitan Community Church, explains how theologians and commentators like John Shelby Spong, George Edwards and Michael England interpret injunctions against certain sexual acts as being originally intended as a means of distinguishing religious worship between Abrahamic and the surrounding pagan faiths, within which homosexual acts featured as part of idolatrous religious practices: "England argues that these prohibitions should be seen as being directed against sexual practices of fertility cult worship. As with the earlier reference from Strong's, he notes that the word 'abomination' used here is directly related to idolatry and idolatrous practices throughout the Hebrew Testament. Edwards makes a similar suggestion, observing that 'the context of the two prohibitions in Leviticus 18:22 and Leviticus 20:13 suggest that what is opposed is not same-sex activity outside the cult, as in the modern secular sense, but within the cult identified as Canaanite'".
In 1986, the Evangelical and Ecumenical Women's Caucus (EEWC), then known as the Evangelical Women's Caucus International, passed a resolution stating: "Whereas homosexual people are children of God, and because of the biblical mandate of Jesus Christ that we are all created equal in God's sight, and in recognition of the presence of the lesbian minority in EWCI, EWCI takes a firm stand in favor of civil rights protection for homosexual persons."
Some Christians believe that Biblical passages have been mistranslated or that these passages do not refer to LGBT orientation as currently understood. Liberal Christian scholars, like conservative Christian scholars, accept earlier versions of the texts that make up the Bible in Hebrew or Greek. However, within these early texts there are many terms that modern scholars have interpreted differently from previous generations of scholars. There are concerns with copying errors, forgery, and biases among the translators of later Bibles. They consider some verses such as those they say support slavery or the inferior treatment of women as not being valid today, and against the will of God present in the context of the Bible. They cite these issues when arguing for a change in theological views on sexual relationships to what they say is an earlier view. They differentiate among various sexual practices, treating rape, prostitution, or temple sex rituals as immoral and those within committed relationships as positive regardless of sexual orientation. They view certain verses, which they believe refer only to homosexual rape, as not relevant to consensual homosexual relationships.
Yale professor John Boswell has argued that a number of Early Christians entered into homosexual relationships, and that certain Biblical figures had homosexual relationships, such as Ruth and her mother-in-law Naomi, Daniel and the court official Ashpenaz, and David and King Saul's son Jonathan. Boswell has also argued that adelphopoiesis, a rite bonding two men, was akin to a religiously sanctioned same-sex union. Having partaken in such a rite, a person was prohibited from entering into marriage or taking monastic vows, and the choreography of the service itself closely parallelled that of the marriage rite. His views have not found wide acceptance, and opponents have argued that this rite sanctified a platonic brotherly bond, not a homosexual union. He also argued that condemnation of homosexuality began only in the 12th century. Boswell's critics point out that many earlier doctrinal sources condemn homosexuality as a sin even if they do not prescribe a specific punishment, and that Boswell's arguments are based on sources which reflected a general trend towards harsher penalties, rather than a change in doctrine, from the 12th century onwards.
Desmond Tutu, the former Anglican Archbishop of Cape Town and a Nobel Peace Prize winner, described homophobia as a "crime against humanity" and "every bit as unjust" as apartheid: "We struggled against apartheid in South Africa, supported by people the world over, because black people were being blamed and made to suffer for something we could do nothing about; our very skins. It is the same with sexual orientation. It is a given. [...] We treat them [gays and lesbians] as pariahs and push them outside our communities. We make them doubt that they too are children of God – and this must be nearly the ultimate blasphemy. We blame them for what they are."
Modern gay Christian leader Justin R. Cannon promotes what he calls "Inclusive Orthodoxy" ('orthodoxy' in this sense is not to be confused with the Eastern Orthodox Church). He explains on his ministry website: "Inclusive Orthodoxy is the belief that the Church can and must be inclusive of LGBT individuals without sacrificing the Gospel and the Apostolic teachings of the Christian faith." Cannon's ministry takes a unique and distinct approach from modern liberal Christians while still supporting homosexual relations. His ministry affirms the divine inspiration of the Bible, the authority of Tradition, and says "...that there is a place within the full life and ministry of the Christian Church for lesbian, gay, bisexual, and transgender Christians, both those who are called to lifelong celibacy and those who are partnered."
Today, many religious people are becoming more affirming of same-sex relationships, even in denominations with official stances against homosexuality. In the United States, people in denominations who are against same-sex relationships are liberalizing quickly, though not as quickly as those in more affirming groups. This social change is creating tension within many denominations, and even schisms and mass walk-outs among Mormons and other conservative groups.
Pope Francis voiced support for same-sex civil unions during an interview in a documentary film, Francesco, which was premiered at the Rome Film Festival on 21 October 2020.
Studies in the US show more LGBT individuals identify as Protestant than Catholic. George Barna, a conservative Christian author and researcher, conducted a survey in the United States in 2009 that found gay and lesbian people having a Christian affiliation were more numerous than had been presumed. He characterized some of his leading conclusions from the data as follows: "People who portray gay adults as godless, hedonistic, Christian bashers are not working with the facts. A substantial majority of gays cite their faith as a central facet of their life, consider themselves to be Christian, and claim to have some type of meaningful personal commitment to Jesus Christ active in their life today." Barna also found that LGBT people were more likely to interpret faith as an individual rather than a collective experience.
Candace Chellew-Hodge, liberal Christian lesbian founder of the online magazine Whosoever, responded to the findings: "All in all, I'm grateful for Barna even wandering into the subject of gay and lesbian religious belief. I think his study is important and can go a long way to dispelling the old "gays vs. God" dichotomy that too often gets played out in the media. However, his overall message is still harmful: Gays and lesbians are Christians – they're just not as good as straight ones." She argued that Barna had formulated his report with undue irony and skepticism, and that he had failed to take into account the reasons for the data which enkindled his "arrière pensée." The reason why far fewer homosexuals attend church, she argued, is that there are far fewer churches who will accept them. Equally, gays and lesbians do not see the Bible as unequivocally true because they are forced by its use against them to read it more closely and with less credulity, leading them to note its myriad contradictions.
Organizations for homosexual Christians exist across a wide range of beliefs and traditions. The interdenominational Q Christian Fellowship (formerly Gay Christian Network) has some members who affirm same-sex relationships and others who commit themselves to celibacy, groups it refers to as "Side A" and "Side B", respectively. According to founder Justin Lee:
We're just trying to get people together who experience attraction to the same sex, however they have handled that, and who love Jesus and say, OK, you are welcome here, and then let's pray together and figure out where God wants us to take it.
Some organizations cater exclusively to homosexual Christians who do not want to have gay sex, or attraction; the goals of these organizations vary. Some Christian groups focus on simply refraining from gay sex, such as Courage International and North Star. Other groups additionally encourage gay members to reduce or eliminate same-sex attractions. Love Won Out and the now-defunct Exodus International are examples of such ministries. These groups are sometimes referred to as ex-gay organizations, though many no longer use the term. Alan Chambers, the president of Exodus, says the term incorrectly implies a complete change in sexual orientation, though the group Parents and Friends of Ex-Gays and Gays continues to use the term. In addition, individual Christians identifying as gay who want to subscribe to the conservative ethic are becoming more vocal themselves.
Gay Christian writer and actor Peterson Toscano argues that organizations promoting orientation change are a "ruse". An organization he co-founded, Beyond Ex-Gay, supports people who feel they have been wounded by such organizations.
Other groups support or advocate for gay Christians and their relationships. For example, in the United States, IntegrityUSA represents the interests of lesbian and gay Christians in the Episcopal Church, while United Methodists have the Reconciling Ministries Network and evangelical Christians have Evangelicals Concerned. GracePointe Church became one of the first evangelical megachurches in the US to support full equality for LGBT people in 2015. In 2014 the United Church of Christ filed a lawsuit challenging North Carolina's ban on same-sex marriage, which is America's first faith-based challenge to same-sex marriage bans; the Alliance of Baptists joined the lawsuit later that year.
In Europe, working within the worldwide Anglican Communion on a range of discrimination issues, including those of LGBT clergy and people in the church, is Inclusive Church. The longest standing groups for lesbian and gay Christians in the UK, were Quest (for lgbt Catholics) and Metropolitan Community Church (UK) both founded in 1973; followed in 1976 by the non-denominational Lesbian and Gay Christian Movement; specifically aimed to meet the needs of lesbian and gay evangelicals, there is the Evangelical Fellowship for Lesbian and Gay Christians; specifically working within the Church of England is Changing Attitude, which also takes an international focus in working for gay, lesbian, bisexual and transgender affirmation within the Anglican Communion.
Sociologist Richard N. Pitt argues that these organizations are only available to LGBT members of liberal denominations, as opposed to those in conservative denominations. His review of the literature on gay Christians suggests that these organizations not only represent the interests of Christians who attend their churches, but (like gay-friendly and gay-affirming churches) also give these members useful responses to homophobic and heterosexist rhetoric. His research shows that those LGBT Christians who stay at homophobic churches "kill the messenger" by attacking the minister's knowledge about homosexuality, personal morality, focus on sin instead of forgiveness, and motivations for preaching against homosexuality.
There is a movement of people who call themselves "gay Christians", but choose to practice celibacy. The movement is often positioned against both liberals and conservatives. Recognizing themselves as gay or bisexual, these people believe that their attraction to same-sex people, while present, does not allow them to have homosexual relationships. They often say that their Christian conversion did not instantly change their sexual desires. They insist that the church should always reject homosexual practices, but that it should welcome gay people.
Various Christian organizations have been involved in the ex-gay movement. Love in Action, founded in 1973, was the first in the USA. In 1976, its members founded Exodus International, a Christian organization (more specifically Protestant and Evangelical) in the United States and in various countries of the world. The Catholic organization Courage International was founded in 1980.
Conversion therapies for people wishing to change sexual orientation have been associated with the movement. Conversion therapy has been widely criticized and denounced by many major medical associations. Studies have found that LGBT individuals who experienced conversion therapy reported significantly higher rates of depression, suicide attempts, and substance abuse than their peers who did not.
In 2005, Baptist Pastor Al Sharpton criticized megachurches for focusing on "bedroom morals", statements against same-sex marriage and abortion, by ignoring issues of social justice, such as the immorality of war and the erosion of affirmative action.
In 2015, American theologian L. Gregory Jones has criticized some Christian churches for their lack of effort to interest young people in the Christian faith in a relevant way, while putting a lot of energy into talking negatively about homosexuality, which is even more boring for young people who want to work with the whole world. | [
{
"paragraph_id": 0,
"text": "Within Christianity, there are a variety of views on sexual orientation and homosexuality. The view that various Bible passages speak of homosexuality as immoral or sinful emerged in the first millennium AD, and have since become entrenched in many Christian denominations through church doctrine and the wording of various translations of the Bible.",
"title": ""
},
{
"paragraph_id": 1,
"text": "In the present day, there are a wide variety of views within Christianity on homosexuality and sexual orientation, with some scholars of Christianity contesting the notion that scripture speaks explicitly of homosexuality as a sin against God. Within a Christian denomination, individual believers and the groups they belong to may hold different views, and not all members of a denomination necessarily support their church's views on homosexuality. Most Christian denominations teach that homosexual behavior and acts are sinful. The Catholic and Eastern Orthodox Churches officially condemn homosexual activity as sin. Various mainline Protestant denominations have taken a supportive stance towards blessing homosexual clergy and same-sex marriage while others have not.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The Hebrew Bible and its traditional interpretations in Judaism and Christianity have historically affirmed and endorsed a patriarchal and heteronormative approach towards human sexuality, favouring exclusively penetrative vaginal intercourse between men and women within the boundaries of marriage over all other forms of human sexual activity, including autoeroticism, masturbation, oral sex, non-penetrative and non-heterosexual sexual intercourse (all of which have been labeled as \"sodomy\" at various times).",
"title": "History"
},
{
"paragraph_id": 3,
"text": "They have believed and taught that such behaviors are forbidden because they are considered sinful, and further compared to or derived from the behavior of the alleged residents of Sodom and Gomorrah. However, the status of LGBT people in early Christianity is debated.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "The history of Christianity and homosexuality has been much debated. Some maintain that the early Christian churches deplored same-sex relationships, while others maintain that they accepted them on the level of their heterosexual counterparts. These disagreements concern, in some cases, the translations of certain terms, or the meaning and context of some biblical passages.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "The extent to which the Bible mentions the subject, whether or not it is condemned, and whether the various passages apply today, have become contentious topics in the 20th and 21st centuries. Significant debate has arisen over the proper interpretation of the Levitical code; the narrative of Sodom and Gomorrah; and various Pauline passages, and whether these verses condemn same-sex sexual activities.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "The Catholic Church views as sinful any sexual act not related to procreation by a couple joined in marriage. The Church states that \"homosexual tendencies\" are \"objectively disordered\", but does not consider the tendency itself to be sinful but rather a temptation toward sin.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 7,
"text": "The Catechism of the Catholic Church states that \"men and women who have deep-seated homosexual tendencies [...] must be accepted with respect, compassion, and sensitivity\" and that \"every sign of unjust discrimination in their regard should be avoided.\" The Church opposes criminal penalties against homosexuality. The Catholic Church requires those who are attracted to people of the same (or opposite) sex to practise chastity, because it teaches that sexuality should only be practised within marriage, which includes chaste sex as permanent, procreative, heterosexual, and monogamous. The Vatican distinguishes between \"deep-seated homosexual tendencies\" and the \"expression of a transitory problem\", in relation to ordination to the priesthood; saying in a 2005 document that homosexual tendencies \"must be clearly overcome at least three years before ordination to the diaconate.\" A 2011 report based on telephone surveys of self-identified American Catholics conducted by the Public Religion Research Institute found that 56% believe that sexual relations between two people of the same sex are not sinful. Research indicates that the Catholic Church's teachings on sexuality are \"a major source of conflict and distress\" to LGBT Catholics.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 8,
"text": "In January 2018 German bishop Franz-Josef Bode of the Roman Catholic Diocese of Osnabrück, and in February 2018 German Roman Catholic cardinal Reinhard Marx, chairman of the German Bishops' Conference said in interviews with German journalists that blessing of same-sex unions is possible in Roman Catholic churches in Germany. In Austria blessing of same sex unions is performed in two churches located in the Roman Catholic Diocese of Linz. In 2021, the Congregation for the Doctrine of the Faith clarified that same-sex civil unions cannot be blessed.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 9,
"text": "On March 11, 2023, the Synodal Path with support of over 80 percentage of German Roman Catholic bishops allowed blessing ceremonies for same-sex couples in all 27 German Roman Catholic diocese. A similar decision had been taken a few months earlier by the Flemish bishops of the Episcopal Conference of Belgium. Both decisions received strong condemnation by the Holy See and by conservative Catholic clergy: Cardinal Pietro Parolin stated that the German bishops had no authority over the issue and Cardinal Wim Eijk urged Flemish bishops to withdraw their decision.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 10,
"text": "On December 18, 2023, blessings of same-sex couples in document Fiducia supplicans were approved by pope Francis and published by the Dicastery for the Doctrine of the Faith. However, \"it is not a formal liturgical blessing and does not give the impression that the Catholic Church is blessing the union as if it were a marriage\".",
"title": "Christian denominational positions"
},
{
"paragraph_id": 11,
"text": "The Eastern Orthodox churches condemn homosexual acts. The Orthodox Church shares a long history of church teachings and canon law with the Catholic Church and has a similar conservative stance on homosexuality. Some Orthodox Church jurisdictions, such as the Orthodox Church in America, have taken the approach of welcoming people with \"homosexual feelings and emotions\", while encouraging them to work towards \"overcoming its harmful effects in their lives\", while not allowing the sacraments to people who seek to justify homosexual activity. Other Orthodox Churches, such as those in Eastern Europe and Greece, view homosexuality less favourably. The Greek Orthodox Archdiocese of America lists homosexuality along with fornication, adultery, and more because of the thinking that homosexuality breaks up the institution of marriage and family. A 2017 Pew Research Center poll found that the majority of Orthodox Christians in the Eastern European and former USSR states surveyed believe that homosexuality \"should not be accepted by society\"; 45% of Orthodox Christians in Greece and 31% in the United States answered the same way.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 12,
"text": "In July 2022, Archbishop Elpidophoros of America baptized two babies adopted by clothing designers Evanggelos Bousis and Peter Dundas, making him the first Greek Orthodox bishop to baptize children adopted by gay couples. According to the metropolitan in whose diocese the baptism took place (Antonios of Glyfada), Elpidophoros did not inform him in advance that the baptism in question was to be performed for a gay couple. Metropolitan Antonios reported Elpidophoros to the Holy Synod of the Church of Greece, which issued a formal protest to both Elpidophoros and the Ecumenical Patriarchate of Constantinople.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 13,
"text": "Certain other Christian denominations do not view monogamous same-sex relationships as sinful or immoral, and may bless such unions and consider them marriages. These include the United Church of Canada, the Presbyterian Church (USA), the United Church of Christ, all German Lutheran, reformed and united churches in EKD, all Swiss reformed churches, the Protestant Church in the Netherlands, the United Protestant Church in Belgium, the United Protestant Church of France, the Church of Denmark, the Church of Sweden, the Church of Iceland, the Church of Norway, and the Uniting Church in Australia. The Evangelical Lutheran Church of Finland also allows prayer for same-sex couples. The Metropolitan Community Church was founded specifically to serve the Christian LGBT community. The Global Alliance of Affirming Apostolic Pentecostals (GAAAP) traces its roots back to 1980, making it the oldest LGBT-affirming Apostolic Pentecostal denomination in existence. Another such organization is the Affirming Pentecostal Church International, currently the largest affirming Pentecostal organization, with churches in the US, UK, Central and South America, Europe and Africa.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 14,
"text": "LGBT-affirming denominations regard homosexuality as a natural occurrence. The United Church of Christ celebrates gay marriage, and some parts of the Anglican and Lutheran churches allow for the blessing of gay unions. The United Church of Canada also allows same-sex marriage, and views sexual orientation as a gift from God. Within the Anglican Communion, there are openly gay clergy; for example, Gene Robinson is an openly gay Bishop in the US Episcopal Church. Within the Lutheran communion, there are openly gay clergy, too; for example, bishop Eva Brunne is an openly lesbian bishop in the Church of Sweden. Such religious groups and denominations interpret scripture and doctrine in a way that leads them to accept that homosexuality is morally acceptable, and a natural occurrence. For example, in 1988 the United Church of Canada, that country's largest Protestant denomination, affirmed that \"a) All persons, regardless of their sexual orientation, who profess Jesus Christ and obedience to Him, are welcome to be or become full members of the Church; and b) All members of the Church are eligible to be considered for the Ordered Ministry.\" In 2000, the Church's General Assembly further affirmed that \"human sexual orientations, whether heterosexual or homosexual, are a gift from God and part of the marvelous diversity of creation.\"",
"title": "Christian denominational positions"
},
{
"paragraph_id": 15,
"text": "In addition, some Christian denominations such as the Moravian Church, believe that the Bible speaks negatively of homosexual acts but, as research on the matter continues, the Moravian Church seeks to establish a policy on homosexuality and the ordination of homosexuals. In 2014, Moravian Church in Europe allowed blessings of same-sex unions.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 16,
"text": "Liberal Quakers, those in membership of Britain Yearly Meeting and Friends General Conference in the US approve of same-sex marriage and union. Quakers were the first Christian group in the United Kingdom to advocate for equal marriage and Quakers in Britain formally recognised same-sex relationships in 1963.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 17,
"text": "The United Methodist Church elected a lesbian bishop in 2016, and on 7 May 2018, the Council of Bishops proposed the One Church Plan, which would allow individual pastors and regional church bodies to decide whether to ordain LGBT clergy and perform same-sex weddings. On 26 February 2019, a special session of the General Conference rejected the One Church Plan and voted to strengthen its official opposition to same-sex marriages and ordaining openly LGBT clergy.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 18,
"text": "Since 1998, the Anglican Church has reassured people with same sex attraction they are loved by God and are welcomed as full members of the Body of Christ. The Church leadership has a variety of views in regard to homosexual expression and ordination. Some expressions of sexuality are considered sinful including \"promiscuity, prostitution, incest, pornography, paedophilia, predatory sexual behaviour, and sadomasochism (all of which may be heterosexual and homosexual)\". The Church is concerned with pressures on young people to engage sexually and encourages abstinence.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 19,
"text": "At the 13th Lambeth Conference in 1998, homosexuality was the most hotly debated issue. It was finally decided, by a vote of 526–70, to pass a resolution (1.10) calling for a \"listening process\" but stating (in an amendment passed by a vote of 389–190) that \"homosexual practice\" (not necessarily orientation) is \"incompatible with Scripture\". Reflecting on resolution 1.10 in the lead up to Lambeth 2022, Angela Tilby recalled the intervention of Bishop Michael Bourke, who successfully proposed an amendment which said: \"We commit ourselves to listen to the experience of homosexual persons\". Tilby considered that while the amendment had appeared inconsequential at the time, it had indeed been significant: she said that the idea of \"patient listening\" underpinned the Church of England's process \"Living in Love and Faith\".",
"title": "Christian denominational positions"
},
{
"paragraph_id": 20,
"text": "Churches within Lutheranism hold stances on the issue ranging from labeling homosexual acts as sinful, to acceptance of homosexual relationships. For example, the Lutheran Church–Missouri Synod, the Lutheran Church of Australia, and the Wisconsin Evangelical Lutheran Synod recognize homosexual behavior as intrinsically sinful and seek to minister to those who are struggling with homosexual inclinations. However, the Church of Sweden, the Church of Denmark, the Church of Norway, or Lutheran churches of the Evangelical Church in Germany conducts same-sex marriages, while the Evangelical Lutheran Church in America and Evangelical Lutheran Church in Canada opens the ministry of the church to gay pastors and other professional workers living in committed relationships. The Ethiopian Evangelical Church Mekane Yesus, the Lutheran denomination in Ethiopia, and second largest non-united Lutheran denomination in the world, however, has taken a stand that marriage is inherently between a man and a woman, and has formally broken fellowship with the ELCA.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 21,
"text": "Some mainline Protestant denominations, such as the African Methodist churches, the Reformed Church in America, and the Presbyterian Church in America, Christian Reformed Church in North America also oppose LGBT relationships.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 22,
"text": "The Seventh-day Adventist Church \"recognizes that every human being is valuable in the sight of God, and seeks to minister to all men and women [including homosexuals] in the spirit of Jesus,\" while maintaining that homosexual sex itself is forbidden in the Bible. \"Jesus affirmed the dignity of all human beings and reached out compassionately to persons and families suffering the consequences of sin. He offered caring ministry and words of solace to struggling people, while differentiating His love for sinners from His clear teaching about sinful practices.\"",
"title": "Christian denominational positions"
},
{
"paragraph_id": 23,
"text": "Conservative Quakers, those within Friends United Meeting and the Evangelical Friends International believe that sexual relations are condoned only in marriage, which they define to be between a man and a woman.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 24,
"text": "Confessional Lutheran churches teach that it is sinful to have homosexual desires, even if they do not lead to homosexual activity. The Doctrinal statement issued by the Wisconsin Evangelical Lutheran Synod states that making a distinction between homosexual orientation and the act of homosexuality is confusing:",
"title": "Christian denominational positions"
},
{
"paragraph_id": 25,
"text": "We cannot limit the sin of homosexuality to deeds but not desires, any more than we can limit heterosexual sin to deeds but not desires. Scripture clearly includes desires and inclinations toward sinful actions in the category of sin (Mt 5:27–28). This is true of both homosexual and heterosexual sin.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 26,
"text": "However, confessional Lutherans also warn against selective morality which harshly condemns homosexuality while treating other sins more lightly.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 27,
"text": "The positions of the evangelical churches are varied, according to denominations.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 28,
"text": "Some evangelical denominations have adopted neutral positions, leaving the choice to local churches to decide for same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 29,
"text": "Some Evangelical Christians regard homosexual acts as sinful and think they should not be accepted by society. They tend to interpret biblical verses on homosexual acts to mean that the heterosexual family was created by God to be the bedrock of civilization and that same-sex relationships contradict God's design for marriage and is not his will. Christians who oppose homosexual relationships sometimes argue that same-gender sexual activity is a sin.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 30,
"text": "In opposing interpretations of the Bible that are supportive of homosexual relationships, conservative Christians have argued for the reliability of the Bible, and the meaning of texts related to homosexual acts, while often seeing what they call the diminishing of the authority of the Bible by many homosexual authors as being ideologically driven.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 31,
"text": "As an alternative to a school-sponsored Day of Silence opposing bullying of LGBT students, conservative Christians organized a Golden Rule Initiative, where they passed out cards saying \"As a follower of Christ, I believe that all people are created in the image of God and therefore deserve love and respect.\" Others created a Day of Dialogue to oppose what they believe is the silencing of Christian students who make public their opposition to homosexuality.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 32,
"text": "On 29 August 2017, the Council on Biblical Manhood and Womanhood released a manifesto on human sexuality known as the \"Nashville Statement\". The statement was signed by 150 evangelical leaders, and includes 14 points of belief.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 33,
"text": "It is in the fundamentalist conservative positions, that there are anti-gay activists on TV or radio who claim that homosexuality is the cause of many social problems, such as terrorism. Some evangelical churches in Uganda strongly oppose homosexuality and homosexuals. They have campaigned for laws criminalizing homosexuality. The generalization and use of prejudices to spread hatred of homosexual people are frequent.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 34,
"text": "Some churches have a moderate Conservative position. Although they do not approve homosexual practices, they show sympathy and respect for homosexuals. Churches thus see themselves as “welcoming, but not affirming”. This expression has its origin in the book Welcoming but Not Affirming: An Evangelical Response to Homosexuality published in 1998 by the American Baptist theologian Stanley Grenz.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 35,
"text": "The French Evangelical Alliance, a member of the European Evangelical Alliance and the World Evangelical Alliance, adopted on 12 October 2002, through its National Council, a document entitled Foi, espérance et homosexualité (\"Faith, Hope and Homosexuality\"), in which homophobia, hatred and rejection of homosexuals are condemned, but which denies homosexual practices and full church membership of unrepentant homosexuals and those who approve of these practices. In 2015, the Conseil national des évangéliques de France (French National Council of Evangelicals) reaffirmed its position on the issue by opposing marriage of same-sex couples, while not rejecting homosexuals, but wanting to offer them more than a blessing; an accompaniment and a welcome.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 36,
"text": "The French evangelical pastor Philippe Auzenet, a chaplain of the association Oser en parler, regularly intervenes on the subject in the media. It promotes dialogue and respect, as well as sensitization in order to better understand homosexuals. He also said in 2012 that Jesus would go to a gay bar, because he was going to all people with love.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 37,
"text": "There are some international evangelical associations that are gay-friendly, such as the Association of Welcoming and Affirming Baptists and Affirming Pentecostal Church International.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 38,
"text": "A 2014 survey reported that 43% of white evangelical American Christians between the ages of 18 and 33 supported same-sex marriage. Some evangelical churches accept homosexuality and celebrate gay weddings. The change in beliefs in favor of gay marriage in evangelical churches has certain consequences for them. Various churches thus received an excommunication from their Christian denomination for not respecting the confession of faith. Other churches have faced significant departures of members from their congregations, seeing their financial resources diminish.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 39,
"text": "Some evangelical associations have adopted neutral positions, leaving the choice to local churches to decide for same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 40,
"text": "Most Mennonite associations hold a conservative position on homosexuality.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 41,
"text": "The Brethren Mennonite Council for LGBT Interests was founded in 1976 in the USA and has member churches of different associations in the USA and Canada.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 42,
"text": "The Mennonite Church Canada leaves the choice to each church for same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 43,
"text": "The Mennonite Church in the Netherlands and the Mennonite Church USA permit same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 44,
"text": "Most Baptist associations around the world hold a conservative view on homosexuality.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 45,
"text": "Some Baptist associations in the United States do not have official beliefs about marriage in a confession of faith and invoke congregationalism to leave the choice to each church to decide. This is the case of American Baptist Churches USA, Progressive National Baptist Convention, Cooperative Baptist Fellowship and National Baptist Convention, USA.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 46,
"text": "Some Baptist associations support same-sex marriage. The Alliance of Baptists (USA), the Canadian Association for Baptist Freedoms, the Aliança de Batistas do Brasil, the Fraternidad de Iglesias Bautistas de Cuba, and the Association of Welcoming and Affirming Baptists (international) all support same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 47,
"text": "Most Pentecostal associations take a conservative stance on homosexuality.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 48,
"text": "Various international associations of the Gay Apostolic Pentecostals movement founded in the United States allow same-sex marriage.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 49,
"text": "Restorationist churches, such as Seventh-Day Adventists, generally teach that homosexuals are 'broken' and can be 'fixed'. Jehovah's Witnesses believe that \"The Bible condemns sexual activity that is not between a husband and wife, whether it is homosexual or heterosexual conduct. (1 Corinthians 6:18) [...] While the Bible disapproves of homosexual acts, it does not condone hatred of homosexuals or homophobia. Instead, Christians are directed to \"respect everyone.\"—1 Peter 2:17, Good News Translation.\" The Church of Jesus Christ of Latter-day Saints said in 2015 that it officially welcomes its gay and lesbian members, if they choose sexual abstinence. The Community of Christ, a branch of Mormonism, fully accepts LGBT persons, performs weddings for gay and lesbian couples, and ordains LGBT members. Within the Stone-Campbell aligned restorationist churches the views are divergent. The churches of Christ (A Capella) and the Independent Christian Churches/Churches of Christ mostly adhere to a very conservative ideology; socially, politically, and religiously and are generally not accepting of openly LGBT members and will not perform weddings for gay and lesbian couples. The Disciples of Christ, is fully accepting of LGBT persons, often performs weddings for gay and lesbian couples, and ordains LGBT members. The United Church of Christ is an officially \"open and affirming\" church. Other Restorationist churches such as Millerite churches, have taken mixed positions but are increasingly accepting with some of their congregations fully accepting LGBT persons in all aspects of religious and political life.",
"title": "Christian denominational positions"
},
{
"paragraph_id": 50,
"text": "In the 20th century, theologians like Jürgen Moltmann, Hans Küng, John Robinson, Bishop David Jenkins, Don Cupitt, and Bishop Jack Spong challenged traditional theological positions and understandings of the Bible; following these developments some have suggested that passages have been mistranslated or that they do not refer to what is in the modern day understood as \"homosexuality.\" Clay Witt, a minister in the Metropolitan Community Church, explains how theologians and commentators like John Shelby Spong, George Edwards and Michael England interpret injunctions against certain sexual acts as being originally intended as a means of distinguishing religious worship between Abrahamic and the surrounding pagan faiths, within which homosexual acts featured as part of idolatrous religious practices: \"England argues that these prohibitions should be seen as being directed against sexual practices of fertility cult worship. As with the earlier reference from Strong's, he notes that the word 'abomination' used here is directly related to idolatry and idolatrous practices throughout the Hebrew Testament. Edwards makes a similar suggestion, observing that 'the context of the two prohibitions in Leviticus 18:22 and Leviticus 20:13 suggest that what is opposed is not same-sex activity outside the cult, as in the modern secular sense, but within the cult identified as Canaanite'\".",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 51,
"text": "In 1986, the Evangelical and Ecumenical Women's Caucus (EEWC), then known as the Evangelical Women's Caucus International, passed a resolution stating: \"Whereas homosexual people are children of God, and because of the biblical mandate of Jesus Christ that we are all created equal in God's sight, and in recognition of the presence of the lesbian minority in EWCI, EWCI takes a firm stand in favor of civil rights protection for homosexual persons.\"",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 52,
"text": "Some Christians believe that Biblical passages have been mistranslated or that these passages do not refer to LGBT orientation as currently understood. Liberal Christian scholars, like conservative Christian scholars, accept earlier versions of the texts that make up the Bible in Hebrew or Greek. However, within these early texts there are many terms that modern scholars have interpreted differently from previous generations of scholars. There are concerns with copying errors, forgery, and biases among the translators of later Bibles. They consider some verses such as those they say support slavery or the inferior treatment of women as not being valid today, and against the will of God present in the context of the Bible. They cite these issues when arguing for a change in theological views on sexual relationships to what they say is an earlier view. They differentiate among various sexual practices, treating rape, prostitution, or temple sex rituals as immoral and those within committed relationships as positive regardless of sexual orientation. They view certain verses, which they believe refer only to homosexual rape, as not relevant to consensual homosexual relationships.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 53,
"text": "Yale professor John Boswell has argued that a number of Early Christians entered into homosexual relationships, and that certain Biblical figures had homosexual relationships, such as Ruth and her mother-in-law Naomi, Daniel and the court official Ashpenaz, and David and King Saul's son Jonathan. Boswell has also argued that adelphopoiesis, a rite bonding two men, was akin to a religiously sanctioned same-sex union. Having partaken in such a rite, a person was prohibited from entering into marriage or taking monastic vows, and the choreography of the service itself closely parallelled that of the marriage rite. His views have not found wide acceptance, and opponents have argued that this rite sanctified a platonic brotherly bond, not a homosexual union. He also argued that condemnation of homosexuality began only in the 12th century. Boswell's critics point out that many earlier doctrinal sources condemn homosexuality as a sin even if they do not prescribe a specific punishment, and that Boswell's arguments are based on sources which reflected a general trend towards harsher penalties, rather than a change in doctrine, from the 12th century onwards.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 54,
"text": "Desmond Tutu, the former Anglican Archbishop of Cape Town and a Nobel Peace Prize winner, described homophobia as a \"crime against humanity\" and \"every bit as unjust\" as apartheid: \"We struggled against apartheid in South Africa, supported by people the world over, because black people were being blamed and made to suffer for something we could do nothing about; our very skins. It is the same with sexual orientation. It is a given. [...] We treat them [gays and lesbians] as pariahs and push them outside our communities. We make them doubt that they too are children of God – and this must be nearly the ultimate blasphemy. We blame them for what they are.\"",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 55,
"text": "Modern gay Christian leader Justin R. Cannon promotes what he calls \"Inclusive Orthodoxy\" ('orthodoxy' in this sense is not to be confused with the Eastern Orthodox Church). He explains on his ministry website: \"Inclusive Orthodoxy is the belief that the Church can and must be inclusive of LGBT individuals without sacrificing the Gospel and the Apostolic teachings of the Christian faith.\" Cannon's ministry takes a unique and distinct approach from modern liberal Christians while still supporting homosexual relations. His ministry affirms the divine inspiration of the Bible, the authority of Tradition, and says \"...that there is a place within the full life and ministry of the Christian Church for lesbian, gay, bisexual, and transgender Christians, both those who are called to lifelong celibacy and those who are partnered.\"",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 56,
"text": "Today, many religious people are becoming more affirming of same-sex relationships, even in denominations with official stances against homosexuality. In the United States, people in denominations who are against same-sex relationships are liberalizing quickly, though not as quickly as those in more affirming groups. This social change is creating tension within many denominations, and even schisms and mass walk-outs among Mormons and other conservative groups.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 57,
"text": "Pope Francis voiced support for same-sex civil unions during an interview in a documentary film, Francesco, which was premiered at the Rome Film Festival on 21 October 2020.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 58,
"text": "Studies in the US show more LGBT individuals identify as Protestant than Catholic. George Barna, a conservative Christian author and researcher, conducted a survey in the United States in 2009 that found gay and lesbian people having a Christian affiliation were more numerous than had been presumed. He characterized some of his leading conclusions from the data as follows: \"People who portray gay adults as godless, hedonistic, Christian bashers are not working with the facts. A substantial majority of gays cite their faith as a central facet of their life, consider themselves to be Christian, and claim to have some type of meaningful personal commitment to Jesus Christ active in their life today.\" Barna also found that LGBT people were more likely to interpret faith as an individual rather than a collective experience.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 59,
"text": "Candace Chellew-Hodge, liberal Christian lesbian founder of the online magazine Whosoever, responded to the findings: \"All in all, I'm grateful for Barna even wandering into the subject of gay and lesbian religious belief. I think his study is important and can go a long way to dispelling the old \"gays vs. God\" dichotomy that too often gets played out in the media. However, his overall message is still harmful: Gays and lesbians are Christians – they're just not as good as straight ones.\" She argued that Barna had formulated his report with undue irony and skepticism, and that he had failed to take into account the reasons for the data which enkindled his \"arrière pensée.\" The reason why far fewer homosexuals attend church, she argued, is that there are far fewer churches who will accept them. Equally, gays and lesbians do not see the Bible as unequivocally true because they are forced by its use against them to read it more closely and with less credulity, leading them to note its myriad contradictions.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 60,
"text": "Organizations for homosexual Christians exist across a wide range of beliefs and traditions. The interdenominational Q Christian Fellowship (formerly Gay Christian Network) has some members who affirm same-sex relationships and others who commit themselves to celibacy, groups it refers to as \"Side A\" and \"Side B\", respectively. According to founder Justin Lee:",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 61,
"text": "We're just trying to get people together who experience attraction to the same sex, however they have handled that, and who love Jesus and say, OK, you are welcome here, and then let's pray together and figure out where God wants us to take it.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 62,
"text": "Some organizations cater exclusively to homosexual Christians who do not want to have gay sex, or attraction; the goals of these organizations vary. Some Christian groups focus on simply refraining from gay sex, such as Courage International and North Star. Other groups additionally encourage gay members to reduce or eliminate same-sex attractions. Love Won Out and the now-defunct Exodus International are examples of such ministries. These groups are sometimes referred to as ex-gay organizations, though many no longer use the term. Alan Chambers, the president of Exodus, says the term incorrectly implies a complete change in sexual orientation, though the group Parents and Friends of Ex-Gays and Gays continues to use the term. In addition, individual Christians identifying as gay who want to subscribe to the conservative ethic are becoming more vocal themselves.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 63,
"text": "Gay Christian writer and actor Peterson Toscano argues that organizations promoting orientation change are a \"ruse\". An organization he co-founded, Beyond Ex-Gay, supports people who feel they have been wounded by such organizations.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 64,
"text": "Other groups support or advocate for gay Christians and their relationships. For example, in the United States, IntegrityUSA represents the interests of lesbian and gay Christians in the Episcopal Church, while United Methodists have the Reconciling Ministries Network and evangelical Christians have Evangelicals Concerned. GracePointe Church became one of the first evangelical megachurches in the US to support full equality for LGBT people in 2015. In 2014 the United Church of Christ filed a lawsuit challenging North Carolina's ban on same-sex marriage, which is America's first faith-based challenge to same-sex marriage bans; the Alliance of Baptists joined the lawsuit later that year.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 65,
"text": "In Europe, working within the worldwide Anglican Communion on a range of discrimination issues, including those of LGBT clergy and people in the church, is Inclusive Church. The longest standing groups for lesbian and gay Christians in the UK, were Quest (for lgbt Catholics) and Metropolitan Community Church (UK) both founded in 1973; followed in 1976 by the non-denominational Lesbian and Gay Christian Movement; specifically aimed to meet the needs of lesbian and gay evangelicals, there is the Evangelical Fellowship for Lesbian and Gay Christians; specifically working within the Church of England is Changing Attitude, which also takes an international focus in working for gay, lesbian, bisexual and transgender affirmation within the Anglican Communion.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 66,
"text": "Sociologist Richard N. Pitt argues that these organizations are only available to LGBT members of liberal denominations, as opposed to those in conservative denominations. His review of the literature on gay Christians suggests that these organizations not only represent the interests of Christians who attend their churches, but (like gay-friendly and gay-affirming churches) also give these members useful responses to homophobic and heterosexist rhetoric. His research shows that those LGBT Christians who stay at homophobic churches \"kill the messenger\" by attacking the minister's knowledge about homosexuality, personal morality, focus on sin instead of forgiveness, and motivations for preaching against homosexuality.",
"title": "Views supportive of homosexuality"
},
{
"paragraph_id": 67,
"text": "There is a movement of people who call themselves \"gay Christians\", but choose to practice celibacy. The movement is often positioned against both liberals and conservatives. Recognizing themselves as gay or bisexual, these people believe that their attraction to same-sex people, while present, does not allow them to have homosexual relationships. They often say that their Christian conversion did not instantly change their sexual desires. They insist that the church should always reject homosexual practices, but that it should welcome gay people.",
"title": "Movement of pro-celibacy gay Christians"
},
{
"paragraph_id": 68,
"text": "Various Christian organizations have been involved in the ex-gay movement. Love in Action, founded in 1973, was the first in the USA. In 1976, its members founded Exodus International, a Christian organization (more specifically Protestant and Evangelical) in the United States and in various countries of the world. The Catholic organization Courage International was founded in 1980.",
"title": "Ex-gay movement"
},
{
"paragraph_id": 69,
"text": "Conversion therapies for people wishing to change sexual orientation have been associated with the movement. Conversion therapy has been widely criticized and denounced by many major medical associations. Studies have found that LGBT individuals who experienced conversion therapy reported significantly higher rates of depression, suicide attempts, and substance abuse than their peers who did not.",
"title": "Ex-gay movement"
},
{
"paragraph_id": 70,
"text": "In 2005, Baptist Pastor Al Sharpton criticized megachurches for focusing on \"bedroom morals\", statements against same-sex marriage and abortion, by ignoring issues of social justice, such as the immorality of war and the erosion of affirmative action.",
"title": "Criticism"
},
{
"paragraph_id": 71,
"text": "In 2015, American theologian L. Gregory Jones has criticized some Christian churches for their lack of effort to interest young people in the Christian faith in a relevant way, while putting a lot of energy into talking negatively about homosexuality, which is even more boring for young people who want to work with the whole world.",
"title": "Criticism"
}
] | Within Christianity, there are a variety of views on sexual orientation and homosexuality. The view that various Bible passages speak of homosexuality as immoral or sinful emerged in the first millennium AD, and have since become entrenched in many Christian denominations through church doctrine and the wording of various translations of the Bible. In the present day, there are a wide variety of views within Christianity on homosexuality and sexual orientation, with some scholars of Christianity contesting the notion that scripture speaks explicitly of homosexuality as a sin against God. Within a Christian denomination, individual believers and the groups they belong to may hold different views, and not all members of a denomination necessarily support their church's views on homosexuality. Most Christian denominations teach that homosexual behavior and acts are sinful. The Catholic and Eastern Orthodox Churches officially condemn homosexual activity as sin. Various mainline Protestant denominations have taken a supportive stance towards blessing homosexual clergy and same-sex marriage while others have not. | 2001-11-29T15:42:36Z | 2023-12-28T03:59:48Z | [
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7,273 | Chadic languages | The Chadic languages form a branch of the Afroasiatic language family. They are spoken in parts of the Sahel. They include 150 languages spoken across northern Nigeria, southern Niger, southern Chad, the Central African Republic, and northern Cameroon. By far the most widely spoken Chadic language is Hausa, a lingua franca of much of inland Eastern West Africa, particularly Niger and the northern half of Nigeria.
Paul Newman (1977) classified the languages into the four groups which have been accepted in all subsequent literature. Further subbranching, however, has not been as robust; Roger Blench (2006), for example, only accepts the A/B bifurcation of East Chadic. Kujargé has been added from Blench (2008), who suggests Kujargé may have split off before the breakup of Proto-Chadic and then subsequently became influenced by East Chadic. Subsequent work by Joseph Lovestrand argues strongly that Kujarge is a valid member of East Chadic. The placing of Luri as a primary split of West Chadic is erroneous. Bernard Caron (2004) shows that this language is South Bauchi and part of the Polci cluster.
Modern genetic studies of Northwestern Cameroonian Chadic-speaking populations have observed high frequencies of the Y-chromosome Haplogroup R1b in these populations (the R1b-V88 variant). This paternal marker is common in parts of West Eurasia, but otherwise rare in Africa. Cruciani et al. (2010) thus proposed that the Proto-Chadic speakers during the mid-Holocene (~7,000 years ago) migrated from the Levant to the Central Sahara, and from there settled in the Lake Chad Basin.
D'Atanasio et al. (2018) claim that R1b-V88 originated in Europe about 12,000 years ago and crossed to North Africa by about 8000 years ago; it may formerly have been common in southern Europe, where it has since been replaced by waves of other haplogroups, leaving remnant subclades almost exclusively in Sardinia. It first radiated within Africa likely between 7 and 8 000 years ago – at the same time as trans-Saharan expansions within the unrelated haplogroups E-M2 and A-M13 – possibly due to population growth allowed by humid conditions and the adoption of livestock herding in the Sahara. R1b-V1589, the main subclade within R1b-V88, underwent a further expansion around 5500 years ago, likely in the Lake Chad Basin region, from which some lines recrossed the Sahara to North Africa.
Chadic languages contain many Nilo-Saharan loanwords from either the Songhay or Maban branches, pointing to early contact between Chadic and Nilo-Saharan speakers as Chadic was migrating west.
Although Adamawa languages are spoken adjacently to Chadic languages, interaction between Chadic and Adamawa is limited.
Pronouns in Proto-Chadic, as compared to pronouns in Proto-Afroasiatic (Vossen & Dimmendaal 2020:351):
Sample basic vocabulary in different Chadic branches listed in order from west to east, with reconstructions of other Afroasiatic branches also given for comparison: | [
{
"paragraph_id": 0,
"text": "The Chadic languages form a branch of the Afroasiatic language family. They are spoken in parts of the Sahel. They include 150 languages spoken across northern Nigeria, southern Niger, southern Chad, the Central African Republic, and northern Cameroon. By far the most widely spoken Chadic language is Hausa, a lingua franca of much of inland Eastern West Africa, particularly Niger and the northern half of Nigeria.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Paul Newman (1977) classified the languages into the four groups which have been accepted in all subsequent literature. Further subbranching, however, has not been as robust; Roger Blench (2006), for example, only accepts the A/B bifurcation of East Chadic. Kujargé has been added from Blench (2008), who suggests Kujargé may have split off before the breakup of Proto-Chadic and then subsequently became influenced by East Chadic. Subsequent work by Joseph Lovestrand argues strongly that Kujarge is a valid member of East Chadic. The placing of Luri as a primary split of West Chadic is erroneous. Bernard Caron (2004) shows that this language is South Bauchi and part of the Polci cluster.",
"title": "Composition"
},
{
"paragraph_id": 2,
"text": "Modern genetic studies of Northwestern Cameroonian Chadic-speaking populations have observed high frequencies of the Y-chromosome Haplogroup R1b in these populations (the R1b-V88 variant). This paternal marker is common in parts of West Eurasia, but otherwise rare in Africa. Cruciani et al. (2010) thus proposed that the Proto-Chadic speakers during the mid-Holocene (~7,000 years ago) migrated from the Levant to the Central Sahara, and from there settled in the Lake Chad Basin.",
"title": "Origin"
},
{
"paragraph_id": 3,
"text": "D'Atanasio et al. (2018) claim that R1b-V88 originated in Europe about 12,000 years ago and crossed to North Africa by about 8000 years ago; it may formerly have been common in southern Europe, where it has since been replaced by waves of other haplogroups, leaving remnant subclades almost exclusively in Sardinia. It first radiated within Africa likely between 7 and 8 000 years ago – at the same time as trans-Saharan expansions within the unrelated haplogroups E-M2 and A-M13 – possibly due to population growth allowed by humid conditions and the adoption of livestock herding in the Sahara. R1b-V1589, the main subclade within R1b-V88, underwent a further expansion around 5500 years ago, likely in the Lake Chad Basin region, from which some lines recrossed the Sahara to North Africa.",
"title": "Origin"
},
{
"paragraph_id": 4,
"text": "Chadic languages contain many Nilo-Saharan loanwords from either the Songhay or Maban branches, pointing to early contact between Chadic and Nilo-Saharan speakers as Chadic was migrating west.",
"title": "Loanwords"
},
{
"paragraph_id": 5,
"text": "Although Adamawa languages are spoken adjacently to Chadic languages, interaction between Chadic and Adamawa is limited.",
"title": "Loanwords"
},
{
"paragraph_id": 6,
"text": "Pronouns in Proto-Chadic, as compared to pronouns in Proto-Afroasiatic (Vossen & Dimmendaal 2020:351):",
"title": "Pronouns"
},
{
"paragraph_id": 7,
"text": "Sample basic vocabulary in different Chadic branches listed in order from west to east, with reconstructions of other Afroasiatic branches also given for comparison:",
"title": "Comparative vocabulary"
}
] | The Chadic languages form a branch of the Afroasiatic language family. They are spoken in parts of the Sahel. They include 150 languages spoken across northern Nigeria, southern Niger, southern Chad, the Central African Republic, and northern Cameroon. By far the most widely spoken Chadic language is Hausa, a lingua franca of much of inland Eastern West Africa, particularly Niger and the northern half of Nigeria. | 2002-02-25T15:51:15Z | 2023-11-26T02:26:40Z | [
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7,274 | Cushitic languages | The Cushitic languages are a branch of the Afroasiatic language family. They are spoken primarily in the Horn of Africa, with minorities speaking Cushitic languages to the north in Egypt and Sudan, and to the south in Kenya and Tanzania. As of 2012, the Cushitic languages with over one million speakers were Oromo, Somali, Beja, Afar, Hadiyya, Kambaata, and Sidama.
The Cushitic languages with the greatest number of total speakers are Oromo (37 million), Somali (22 million), Beja (3.2 million), Sidamo (3 million), and Afar (2 million).
Oromo serves as one of the official working languages of Ethiopia and is also the working language of several of the states within the Ethiopian federal system including Oromia, Harari and Dire Dawa regional states and of the Oromia Zone in the Amhara Region.
Somali is the first of two official languages of Somalia and three official languages of the self declared republic of Somaliland. It also serves as a language of instruction in Djibouti, and as the working language of the Somali Region in Ethiopia.
Beja, Afar, Blin and Saho, the languages of the Cushitic branch of Afroasiatic that are spoken in Eritrea, are languages of instruction in the Eritrean elementary school curriculum. The constitution of Eritrea also recognizes the equality of all natively spoken languages. Additionally, Afar is a language of instruction in Djibouti, as well as the working language of the Afar Region in Ethiopia.
Christopher Ehret argues for a unified Proto-Cushitic language in the Red Sea Hills as far back as the Early Holocene. Based on onomastic evidence, the Medjay and the Blemmyes of northern Nubia are believed to have spoken Cushitic languages related to the modern Beja language. Less certain are hypotheses which propose that Cushitic languages were spoken by the people of the C-Group culture in northern Nubia, or the people of the Kerma culture in southern Nubia.
Most Cushitic languages have a simple five-vowel system with phonemic length (/a a: e e: i i: o o: u u:/); a notable exception are the Agaw languages, which do not contrast vowel length, but have one or two additional central vowels. The consonant inventory of many Cushitic languages includes glottalic consonants, e.g. in Oromo, which has the ejectives /pʼ tʼ tʃʼ kʼ/ and the implosive /ᶑ/. Less common are pharyngeal consonants /ħ ʕ/, which appear e.g. in Somali or the Saho–Afar languages.
Most Cushitic languages have a system of restrictive tone (also known as ‘pitch accent’ in which tonal contours overlaid on the stressed syllable play a prominent role in morphology and syntax.
Nouns are inflected for case and number. All nouns are further grouped into two gender categories, masculine gender and feminine gender. In many languages, gender is overtly marked directly on the noun (e.g. in Awngi, where all female nouns carry the suffix -a).
The case system of many Cushitic languages is characterized by marked nominative alignment, which is typologically quite rare and predominantly found in languages of Africa. In marked nominative languages, the noun appears in unmarked "absolutive" case when cited in isolation, or when used as predicative noun and as object of a transitive verb; on the other hand, it is explicitly marked for nominative case when it functions as subject in a transitive or intransitive sentence.
Possession is usually expressed by genitive case marking of the possessor. South Cushitic—which has no case marking for subject and object—follows the opposite strategy: here, the possessed noun is marked for construct case, e.g. Iraqw afé-r mar'i "doors" (lit. "mouths of houses"), where afee "mouth" is marked for construct case.
Most nouns are by default unmarked for number, but can be explicitly marked for singular ("singulative") and plural number. E.g. in Bilin, dəmmu "cat(s)" is number-neutral, from which singular dəmmura "a single cat" and plural dəmmut "several cats" can be formed. Plural formation is very diverse, and employs ablaut (i.e. changes of root vowels or consonants), suffixes and reduplication.
Verbs are inflected for person/number and tense/aspect. Many languages also have a special form of the verb in negative clauses.
Most languages distinguish seven person/number categories: first, second, third person, singular and plural number, with a masculine/feminine gender distinction in third person singular. The most common conjugation type employs suffixes. Some languages also have a prefix conjugation: in Beja and the Saho–Afar languages, the prefix conjugation is still a productive part of the verb paradigm, whereas in most other languages, e.g. Somali, it is restricted to only a few verbs. It is generally assumed that historically, the suffix conjugation developed from the older prefix conjugation, by combining the verb stem with a suffixed auxiliary verb. The following table gives an example for the suffix and prefix conjugations in affirmative present tense in Somali.
Basic word order is verb final, the most common order being subject–object–verb (SOV). The subject or object can also follow the verb to indicate focus.
The phylum was first designated as Cushitic in 1858. The Omotic languages, once included in Cushitic, have almost universally been removed. The most influential recent classification, Tosco (2003), has informed later approaches. It and two more recent classifications are as follows:
Geographic labels are given for comparison; Bender's labels are added in parentheses. Dahalo is made a primary branch, as also suggested by Kiessling and Mous (2003). Yaaku is not listed, being placed within Arboroid. Afar–Saho is removed from Lowland East Cushitic; since they are the most 'lowland' of the Cushitic languages, Bender calls the remnant 'core' East Cushitic.
These classifications have not been without contention. For example, it has been argued that Southern Cushitic belongs in the Eastern branch, with its divergence explained by contact with Hadza- and Sandawe-like languages. Hetzron (1980) and Fleming (post-1981) exclude Beja altogether, though this is rejected by other linguists. Some of the classifications that have been proposed over the years are summarized here:
For debate on the placement of the Cushitic branch within Afroasiatic, see Afroasiatic languages.
Beja constitutes the only member of the Northern Cushitic subgroup. As such, Beja contains a number of linguistic innovations that are unique to it, as is also the situation with the other subgroups of Cushitic (e.g. idiosyncratic features in Agaw or Central Cushitic). Hetzron (1980) argues that Beja therefore may comprise an independent branch of the Afroasiatic family. However, this suggestion has been rejected by most other scholars. The characteristics of Beja that differ from those of other Cushitic languages are instead generally acknowledged as normal branch variation.
Didier Morin (2001) assigned Beja to Lowland Cushitic on the grounds that the language shared lexical and phonological features with the Afar and Saho idioms, and also because the languages were historically spoken in adjacent speech areas. However, among linguists specializing in the Cushitic languages, the standard classification of Beja as North Cushitic is accepted.
There are also a few poorly-classified languages, including Yaaku, Dahalo, Aasax, Kw'adza, Boon, the Cushitic element of Mbugu (Ma'a) and Ongota. There is a wide range of opinions as to how the languages are interrelated.
The positions of the Dullay languages and of Yaaku are uncertain. They have traditionally been assigned to an East Cushitic subbranch along with Highland (Sidamic) and Lowland East Cushitic. However, Hayward thinks that East Cushitic may not be a valid node and that its constituents should be considered separately when attempting to work out the internal relationships of Cushitic.
The Afroasiatic identity of Ongota has also been broadly questioned, as is its position within Afroasiatic among those who accept it, because of the "mixed" appearance of the language and a paucity of research and data. Harold C. Fleming (2006) proposes that Ongota is a separate branch of Afroasiatic. Bonny Sands (2009) thinks the most convincing proposal is by Savà and Tosco (2003), namely that Ongota is an East Cushitic language with a Nilo-Saharan substratum. In other words, it would appear that the Ongota people once spoke a Nilo-Saharan language but then shifted to speaking a Cushitic language while retaining some characteristics of their earlier Nilo-Saharan language.
Hetzron (1980) and Ehret (1995) have suggested that the South Cushitic languages (Rift languages) are a part of Lowland East Cushitic, the only one of the six groups with much internal diversity.
Cushitic was formerly seen as also including the Omotic languages, then called West Cushitic. However, this view has been abandoned. Omotic is generally agreed to be an independent branch of Afroasiatic, primarily due to the work of Harold C. Fleming (1974) and Lionel Bender (1975); some linguists like Paul Newman (1980) challenge Omotic's classification within the Afroasiatic family itself.
A number of extinct populations have been proposed to have spoken Afroasiatic languages of the Cushitic branch. Marianne Bechhaus-Gerst (2000) proposed that the peoples of the Kerma Culture – which inhabited the Nile Valley in present-day Sudan immediately before the arrival of the first Nubian speakers – spoke Cushitic languages. She argues that the Nilo-Saharan Nobiin language today contains a number of key pastoralism related loanwords that are of proto-Highland East Cushitic origin, including the terms for sheep/goatskin, hen/cock, livestock enclosure, butter and milk. However, more recent linguistic research indicates that the people of the Kerma culture (who were based in southern Nubia) instead spoke Nilo-Saharan languages of the Eastern Sudanic branch, and that the peoples of the C-Group culture to their north (in northern Nubia) and other groups in northern Nubia (such as the Medjay and Belmmyes) spoke Cushitic languages with the latter being related to the modern Beja language. The linguistic affinity of the ancient A-Group culture of northern Nubia—the predecessor of the C-Group culture—is unknown, but Rilly (2019) suggests that it is unlikely to have spoken a language of the Northern East Sudanic branch of Nilo-Saharan, and may have spoken a Cushitic language, another Afro-Asiatic language, or a language belonging to another (non-Northern East Sudanic) branch of the Nilo-Saharan family. Rilly also criticizes proposals (by Behrens and Bechaus-Gerst) of significant early Afro-Asiatic influence on Nobiin, and considers evidence of substratal influence on Nobiin from an earlier now extinct Eastern Sudanic language to be stronger.
Linguistic evidence indicates that Cushitic languages were spoken in Lower Nubia, an ancient region which straddles present day Southern Egypt and Northern Sudan, before the arrival of North Eastern Sudanic languages from Upper Nubia.
Julien Cooper (2017) states that in antiquity, Cushitic languages were spoken in Lower Nubia (the northernmost part of modern-day Sudan). He also states that Eastern Sudanic-speaking populations from southern and west Nubia gradually replaced the earlier Cushitic-speaking populations of this region.
In Handbook of Ancient Nubia, Claude Rilly (2019) states that Cushitic languages once dominated Lower Nubia along with the Ancient Egyptian language. He mentions historical records of the Blemmyes, a Cushitic-speaking tribe which controlled Lower Nubia and some cities in Upper Egypt. He mentions the linguistic relationship between the modern Beja language and the ancient Blemmyan language, and that the Blemmyes can be regarded as a particular tribe of the Medjay.
Additionally, historiolinguistics indicate that the makers of the Savanna Pastoral Neolithic (Stone Bowl Culture) in the Great Lakes area likely spoke South Cushitic languages.
Christopher Ehret (1998) proposed on the basis of loanwords that South Cushitic languages (called "Tale" and "Bisha" by Ehret) were spoken in an area closer to Lake Victoria than are found today.
Also, historically, the Southern Nilotic languages have undergone extensive contact with a "missing" branch of East Cushitic that Heine (1979) refers to as Baz.
Christopher Ehret proposed a reconstruction of Proto-Cushitic in 1987, but did not base this on individual branch reconstructions. Grover Hudson (1989) has done some preliminary work on Highland East Cushitic, David Appleyard (2006) has proposed a reconstruction of Proto-Agaw, and Roland Kießling and Maarten Mous (2003) have jointly proposed a reconstruction of West Rift Southern Cushitic. No reconstruction has been published for Lowland East Cushitic, though Paul D. Black wrote his (unpublished) dissertation on the topic in 1974. Hans-Jürgen Sasse (1979) proposed a reconstruction of the consonants of Proto-East Cushitic. No comparative work has yet brought these branch reconstructions together.
Sample basic vocabulary of Cushitic languages from Vossen & Dimmendaal (2020:318) (with PSC denoting Proto-Southern Cushitic):
Comparison of numerals in individual Cushitic languages: | [
{
"paragraph_id": 0,
"text": "The Cushitic languages are a branch of the Afroasiatic language family. They are spoken primarily in the Horn of Africa, with minorities speaking Cushitic languages to the north in Egypt and Sudan, and to the south in Kenya and Tanzania. As of 2012, the Cushitic languages with over one million speakers were Oromo, Somali, Beja, Afar, Hadiyya, Kambaata, and Sidama.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The Cushitic languages with the greatest number of total speakers are Oromo (37 million), Somali (22 million), Beja (3.2 million), Sidamo (3 million), and Afar (2 million).",
"title": "Official status"
},
{
"paragraph_id": 2,
"text": "Oromo serves as one of the official working languages of Ethiopia and is also the working language of several of the states within the Ethiopian federal system including Oromia, Harari and Dire Dawa regional states and of the Oromia Zone in the Amhara Region.",
"title": "Official status"
},
{
"paragraph_id": 3,
"text": "Somali is the first of two official languages of Somalia and three official languages of the self declared republic of Somaliland. It also serves as a language of instruction in Djibouti, and as the working language of the Somali Region in Ethiopia.",
"title": "Official status"
},
{
"paragraph_id": 4,
"text": "Beja, Afar, Blin and Saho, the languages of the Cushitic branch of Afroasiatic that are spoken in Eritrea, are languages of instruction in the Eritrean elementary school curriculum. The constitution of Eritrea also recognizes the equality of all natively spoken languages. Additionally, Afar is a language of instruction in Djibouti, as well as the working language of the Afar Region in Ethiopia.",
"title": "Official status"
},
{
"paragraph_id": 5,
"text": "Christopher Ehret argues for a unified Proto-Cushitic language in the Red Sea Hills as far back as the Early Holocene. Based on onomastic evidence, the Medjay and the Blemmyes of northern Nubia are believed to have spoken Cushitic languages related to the modern Beja language. Less certain are hypotheses which propose that Cushitic languages were spoken by the people of the C-Group culture in northern Nubia, or the people of the Kerma culture in southern Nubia.",
"title": "Origin and prehistory"
},
{
"paragraph_id": 6,
"text": "Most Cushitic languages have a simple five-vowel system with phonemic length (/a a: e e: i i: o o: u u:/); a notable exception are the Agaw languages, which do not contrast vowel length, but have one or two additional central vowels. The consonant inventory of many Cushitic languages includes glottalic consonants, e.g. in Oromo, which has the ejectives /pʼ tʼ tʃʼ kʼ/ and the implosive /ᶑ/. Less common are pharyngeal consonants /ħ ʕ/, which appear e.g. in Somali or the Saho–Afar languages.",
"title": "Typological characteristics"
},
{
"paragraph_id": 7,
"text": "Most Cushitic languages have a system of restrictive tone (also known as ‘pitch accent’ in which tonal contours overlaid on the stressed syllable play a prominent role in morphology and syntax.",
"title": "Typological characteristics"
},
{
"paragraph_id": 8,
"text": "Nouns are inflected for case and number. All nouns are further grouped into two gender categories, masculine gender and feminine gender. In many languages, gender is overtly marked directly on the noun (e.g. in Awngi, where all female nouns carry the suffix -a).",
"title": "Typological characteristics"
},
{
"paragraph_id": 9,
"text": "The case system of many Cushitic languages is characterized by marked nominative alignment, which is typologically quite rare and predominantly found in languages of Africa. In marked nominative languages, the noun appears in unmarked \"absolutive\" case when cited in isolation, or when used as predicative noun and as object of a transitive verb; on the other hand, it is explicitly marked for nominative case when it functions as subject in a transitive or intransitive sentence.",
"title": "Typological characteristics"
},
{
"paragraph_id": 10,
"text": "Possession is usually expressed by genitive case marking of the possessor. South Cushitic—which has no case marking for subject and object—follows the opposite strategy: here, the possessed noun is marked for construct case, e.g. Iraqw afé-r mar'i \"doors\" (lit. \"mouths of houses\"), where afee \"mouth\" is marked for construct case.",
"title": "Typological characteristics"
},
{
"paragraph_id": 11,
"text": "Most nouns are by default unmarked for number, but can be explicitly marked for singular (\"singulative\") and plural number. E.g. in Bilin, dəmmu \"cat(s)\" is number-neutral, from which singular dəmmura \"a single cat\" and plural dəmmut \"several cats\" can be formed. Plural formation is very diverse, and employs ablaut (i.e. changes of root vowels or consonants), suffixes and reduplication.",
"title": "Typological characteristics"
},
{
"paragraph_id": 12,
"text": "Verbs are inflected for person/number and tense/aspect. Many languages also have a special form of the verb in negative clauses.",
"title": "Typological characteristics"
},
{
"paragraph_id": 13,
"text": "Most languages distinguish seven person/number categories: first, second, third person, singular and plural number, with a masculine/feminine gender distinction in third person singular. The most common conjugation type employs suffixes. Some languages also have a prefix conjugation: in Beja and the Saho–Afar languages, the prefix conjugation is still a productive part of the verb paradigm, whereas in most other languages, e.g. Somali, it is restricted to only a few verbs. It is generally assumed that historically, the suffix conjugation developed from the older prefix conjugation, by combining the verb stem with a suffixed auxiliary verb. The following table gives an example for the suffix and prefix conjugations in affirmative present tense in Somali.",
"title": "Typological characteristics"
},
{
"paragraph_id": 14,
"text": "Basic word order is verb final, the most common order being subject–object–verb (SOV). The subject or object can also follow the verb to indicate focus.",
"title": "Typological characteristics"
},
{
"paragraph_id": 15,
"text": "The phylum was first designated as Cushitic in 1858. The Omotic languages, once included in Cushitic, have almost universally been removed. The most influential recent classification, Tosco (2003), has informed later approaches. It and two more recent classifications are as follows:",
"title": "Classification"
},
{
"paragraph_id": 16,
"text": "Geographic labels are given for comparison; Bender's labels are added in parentheses. Dahalo is made a primary branch, as also suggested by Kiessling and Mous (2003). Yaaku is not listed, being placed within Arboroid. Afar–Saho is removed from Lowland East Cushitic; since they are the most 'lowland' of the Cushitic languages, Bender calls the remnant 'core' East Cushitic.",
"title": "Classification"
},
{
"paragraph_id": 17,
"text": "These classifications have not been without contention. For example, it has been argued that Southern Cushitic belongs in the Eastern branch, with its divergence explained by contact with Hadza- and Sandawe-like languages. Hetzron (1980) and Fleming (post-1981) exclude Beja altogether, though this is rejected by other linguists. Some of the classifications that have been proposed over the years are summarized here:",
"title": "Classification"
},
{
"paragraph_id": 18,
"text": "For debate on the placement of the Cushitic branch within Afroasiatic, see Afroasiatic languages.",
"title": "Classification"
},
{
"paragraph_id": 19,
"text": "Beja constitutes the only member of the Northern Cushitic subgroup. As such, Beja contains a number of linguistic innovations that are unique to it, as is also the situation with the other subgroups of Cushitic (e.g. idiosyncratic features in Agaw or Central Cushitic). Hetzron (1980) argues that Beja therefore may comprise an independent branch of the Afroasiatic family. However, this suggestion has been rejected by most other scholars. The characteristics of Beja that differ from those of other Cushitic languages are instead generally acknowledged as normal branch variation.",
"title": "Classification"
},
{
"paragraph_id": 20,
"text": "Didier Morin (2001) assigned Beja to Lowland Cushitic on the grounds that the language shared lexical and phonological features with the Afar and Saho idioms, and also because the languages were historically spoken in adjacent speech areas. However, among linguists specializing in the Cushitic languages, the standard classification of Beja as North Cushitic is accepted.",
"title": "Classification"
},
{
"paragraph_id": 21,
"text": "There are also a few poorly-classified languages, including Yaaku, Dahalo, Aasax, Kw'adza, Boon, the Cushitic element of Mbugu (Ma'a) and Ongota. There is a wide range of opinions as to how the languages are interrelated.",
"title": "Classification"
},
{
"paragraph_id": 22,
"text": "The positions of the Dullay languages and of Yaaku are uncertain. They have traditionally been assigned to an East Cushitic subbranch along with Highland (Sidamic) and Lowland East Cushitic. However, Hayward thinks that East Cushitic may not be a valid node and that its constituents should be considered separately when attempting to work out the internal relationships of Cushitic.",
"title": "Classification"
},
{
"paragraph_id": 23,
"text": "The Afroasiatic identity of Ongota has also been broadly questioned, as is its position within Afroasiatic among those who accept it, because of the \"mixed\" appearance of the language and a paucity of research and data. Harold C. Fleming (2006) proposes that Ongota is a separate branch of Afroasiatic. Bonny Sands (2009) thinks the most convincing proposal is by Savà and Tosco (2003), namely that Ongota is an East Cushitic language with a Nilo-Saharan substratum. In other words, it would appear that the Ongota people once spoke a Nilo-Saharan language but then shifted to speaking a Cushitic language while retaining some characteristics of their earlier Nilo-Saharan language.",
"title": "Classification"
},
{
"paragraph_id": 24,
"text": "Hetzron (1980) and Ehret (1995) have suggested that the South Cushitic languages (Rift languages) are a part of Lowland East Cushitic, the only one of the six groups with much internal diversity.",
"title": "Classification"
},
{
"paragraph_id": 25,
"text": "Cushitic was formerly seen as also including the Omotic languages, then called West Cushitic. However, this view has been abandoned. Omotic is generally agreed to be an independent branch of Afroasiatic, primarily due to the work of Harold C. Fleming (1974) and Lionel Bender (1975); some linguists like Paul Newman (1980) challenge Omotic's classification within the Afroasiatic family itself.",
"title": "Classification"
},
{
"paragraph_id": 26,
"text": "A number of extinct populations have been proposed to have spoken Afroasiatic languages of the Cushitic branch. Marianne Bechhaus-Gerst (2000) proposed that the peoples of the Kerma Culture – which inhabited the Nile Valley in present-day Sudan immediately before the arrival of the first Nubian speakers – spoke Cushitic languages. She argues that the Nilo-Saharan Nobiin language today contains a number of key pastoralism related loanwords that are of proto-Highland East Cushitic origin, including the terms for sheep/goatskin, hen/cock, livestock enclosure, butter and milk. However, more recent linguistic research indicates that the people of the Kerma culture (who were based in southern Nubia) instead spoke Nilo-Saharan languages of the Eastern Sudanic branch, and that the peoples of the C-Group culture to their north (in northern Nubia) and other groups in northern Nubia (such as the Medjay and Belmmyes) spoke Cushitic languages with the latter being related to the modern Beja language. The linguistic affinity of the ancient A-Group culture of northern Nubia—the predecessor of the C-Group culture—is unknown, but Rilly (2019) suggests that it is unlikely to have spoken a language of the Northern East Sudanic branch of Nilo-Saharan, and may have spoken a Cushitic language, another Afro-Asiatic language, or a language belonging to another (non-Northern East Sudanic) branch of the Nilo-Saharan family. Rilly also criticizes proposals (by Behrens and Bechaus-Gerst) of significant early Afro-Asiatic influence on Nobiin, and considers evidence of substratal influence on Nobiin from an earlier now extinct Eastern Sudanic language to be stronger.",
"title": "Extinct languages"
},
{
"paragraph_id": 27,
"text": "Linguistic evidence indicates that Cushitic languages were spoken in Lower Nubia, an ancient region which straddles present day Southern Egypt and Northern Sudan, before the arrival of North Eastern Sudanic languages from Upper Nubia.",
"title": "Extinct languages"
},
{
"paragraph_id": 28,
"text": "Julien Cooper (2017) states that in antiquity, Cushitic languages were spoken in Lower Nubia (the northernmost part of modern-day Sudan). He also states that Eastern Sudanic-speaking populations from southern and west Nubia gradually replaced the earlier Cushitic-speaking populations of this region.",
"title": "Extinct languages"
},
{
"paragraph_id": 29,
"text": "In Handbook of Ancient Nubia, Claude Rilly (2019) states that Cushitic languages once dominated Lower Nubia along with the Ancient Egyptian language. He mentions historical records of the Blemmyes, a Cushitic-speaking tribe which controlled Lower Nubia and some cities in Upper Egypt. He mentions the linguistic relationship between the modern Beja language and the ancient Blemmyan language, and that the Blemmyes can be regarded as a particular tribe of the Medjay.",
"title": "Extinct languages"
},
{
"paragraph_id": 30,
"text": "Additionally, historiolinguistics indicate that the makers of the Savanna Pastoral Neolithic (Stone Bowl Culture) in the Great Lakes area likely spoke South Cushitic languages.",
"title": "Extinct languages"
},
{
"paragraph_id": 31,
"text": "Christopher Ehret (1998) proposed on the basis of loanwords that South Cushitic languages (called \"Tale\" and \"Bisha\" by Ehret) were spoken in an area closer to Lake Victoria than are found today.",
"title": "Extinct languages"
},
{
"paragraph_id": 32,
"text": "Also, historically, the Southern Nilotic languages have undergone extensive contact with a \"missing\" branch of East Cushitic that Heine (1979) refers to as Baz.",
"title": "Extinct languages"
},
{
"paragraph_id": 33,
"text": "Christopher Ehret proposed a reconstruction of Proto-Cushitic in 1987, but did not base this on individual branch reconstructions. Grover Hudson (1989) has done some preliminary work on Highland East Cushitic, David Appleyard (2006) has proposed a reconstruction of Proto-Agaw, and Roland Kießling and Maarten Mous (2003) have jointly proposed a reconstruction of West Rift Southern Cushitic. No reconstruction has been published for Lowland East Cushitic, though Paul D. Black wrote his (unpublished) dissertation on the topic in 1974. Hans-Jürgen Sasse (1979) proposed a reconstruction of the consonants of Proto-East Cushitic. No comparative work has yet brought these branch reconstructions together.",
"title": "Reconstruction"
},
{
"paragraph_id": 34,
"text": "Sample basic vocabulary of Cushitic languages from Vossen & Dimmendaal (2020:318) (with PSC denoting Proto-Southern Cushitic):",
"title": "Comparative vocabulary"
},
{
"paragraph_id": 35,
"text": "Comparison of numerals in individual Cushitic languages:",
"title": "Comparative vocabulary"
},
{
"paragraph_id": 36,
"text": "",
"title": "External links"
}
] | The Cushitic languages are a branch of the Afroasiatic language family. They are spoken primarily in the Horn of Africa, with minorities speaking Cushitic languages to the north in Egypt and Sudan, and to the south in Kenya and Tanzania. As of 2012, the Cushitic languages with over one million speakers were Oromo, Somali, Beja, Afar, Hadiyya, Kambaata, and Sidama. | 2001-11-29T20:41:19Z | 2023-11-12T05:12:58Z | [
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7,279 | Chapter 11, Title 11, United States Code | Chapter 11 of the United States Bankruptcy Code (Title 11 of the United States Code) permits reorganization under the bankruptcy laws of the United States. Such reorganization, known as Chapter 11 bankruptcy, is available to every business, whether organized as a corporation, partnership or sole proprietorship, and to individuals, although it is most prominently used by corporate entities. In contrast, Chapter 7 governs the process of a liquidation bankruptcy, though liquidation may also occur under Chapter 11; while Chapter 13 provides a reorganization process for the majority of private individuals.
When a business is unable to service its debt or pay its creditors, the business or its creditors can file with a federal bankruptcy court for protection under either Chapter 7 or Chapter 11.
In Chapter 7, the business ceases operations, a trustee sells all of its assets, and then distributes the proceeds to its creditors. Any residual amount is returned to the owners of the company.
In Chapter 11, in most instances the debtor remains in control of its business operations as a debtor in possession, and is subject to the oversight and jurisdiction of the court.
A Chapter 11 bankruptcy will result in one of three outcomes for the debtor: reorganization, conversion to Chapter 7 bankruptcy, or dismissal. In order for a Chapter 11 debtor to reorganize, the debtor must file (and the court must confirm) a plan of reorganization. In effect, the plan is a compromise between the major stakeholders in the case, including the debtor and its creditors. Most Chapter 11 cases aim to confirm a plan, but that may not always be possible.
If the judge approves the reorganization plan and the creditors all agree, then the plan can be confirmed. Section 1129 of the Bankruptcy Code requires the bankruptcy court reach certain conclusions prior to confirming or approving the plan and making it binding on all parties in the case, most notably that the plan complies with applicable law and was proposed in good faith. The court must also find that the reorganization plan is feasible in that, unless the plan provides otherwise, the plan is not likely to be followed by further reorganization or liquidation.
In a Chapter 11 bankruptcy, the debtor corporation is typically recapitalized so that it emerges from bankruptcy with more equity and less debt, a process through which some of the debtor corporation's debts may be discharged. Determinations as to which debts are discharged, and how equity and other entitlements are distributed to various groups of investors, are often based on a valuation of the reorganized business. Bankruptcy valuation is often highly contentious because it is both subjective and important to case outcomes. The methods of valuation used in bankruptcy have changed over time, generally tracking methods used in investment banking, Delaware corporate law, and corporate and academic finance, but with a significant time lag.
Chapter 11 retains many of the features present in all, or most, bankruptcy proceedings in the United States. It provides additional tools for debtors as well. Most importantly, 11 U.S.C. § 1108 empowers the trustee to operate the debtor's business. In Chapter 11, unless a separate trustee is appointed for cause, the debtor, as debtor in possession, acts as trustee of the business.
Chapter 11 affords the debtor in possession a number of mechanisms to restructure its business. A debtor in possession can acquire financing and loans on favorable terms by giving new lenders first priority on the business's earnings. The court may also permit the debtor in possession to reject and cancel contracts. Debtors are also protected from other litigation against the business through the imposition of an automatic stay. While the automatic stay is in place, creditors are stayed from any collection attempts or activities against the debtor in possession, and most litigation against the debtor is stayed, or put on hold, until it can be resolved in bankruptcy court, or resumed in its original venue. An example of proceedings that are not necessarily stayed automatically are family law proceedings against a spouse or parent. Further, creditors may file with the court seeking relief from the automatic stay.
If the business is insolvent, its debts exceed its assets and the business is unable to pay debts as they come due, the bankruptcy restructuring may result in the company's owners being left with nothing; instead, the owners' rights and interests are ended and the company's creditors are left with ownership of the newly reorganized company.
All creditors are entitled to be heard by the court. The court is ultimately responsible for determining whether the proposed plan of reorganization complies with bankruptcy laws.
One controversy that has broken out in bankruptcy courts concerns the proper amount of disclosure that the court and other parties are entitled to receive from the members of the creditor's committees that play a large role in many proceedings.
Chapter 11 usually results in reorganization of the debtor's business or personal assets and debts, but can also be used as a mechanism for liquidation. Debtors may "emerge" from a chapter 11 bankruptcy within a few months or within several years, depending on the size and complexity of the bankruptcy. The Bankruptcy Code accomplishes this objective through the use of a bankruptcy plan. The debtor in possession typically has the first opportunity to propose a plan during the period of exclusivity. This period allows the debtor 120 days from the date of filing for chapter 11 to propose a plan of reorganization before any other party in interest may propose a plan. If the debtor proposes a plan within the 120-day exclusivity period, a 180-day exclusivity period from the date of filing for chapter 11 is granted in order to allow the debtor to gain confirmation of the proposed plan. With some exceptions, the plan may be proposed by any party in interest. Interested creditors then vote for a plan.
If the judge approves the reorganization plan and the creditors all agree, then the plan can be confirmed. If at least one class of creditors objects and votes against the plan, it may nonetheless be confirmed if the requirements of cramdown are met. In order to be confirmed over the creditors' objection, the plan must not discriminate against that class of creditors, and the plan must be found fair and equitable to that class. Upon confirmation, the plan becomes binding and identifies the treatment of debts and operations of the business for the duration of the plan. If a plan cannot be confirmed, the court may either convert the case to a liquidation under chapter 7, or, if in the best interests of the creditors and the estate, the case may be dismissed resulting in a return to the status quo before bankruptcy. If the case is dismissed, creditors will look to non-bankruptcy law in order to satisfy their claims.
In order to proceed to the confirmation hearing, a disclosure statement must be approved by the bankruptcy court. Once the disclosure statement is approved, the plan proponent will solicit votes from the classes of creditors. Solicitation is the process by which creditors vote on the proposed confirmation plan. This process can be complicated if creditors fail or refuse to vote. In which case, the plan proponent might tailor his or her efforts in obtaining votes, or the plan itself. The plan may be modified before confirmation, so long as the modified plan meets all the requirements of Chapter 11.
A chapter 11 case typically results in one of three outcomes: a reorganization; a conversion into chapter 7 liquidation, or it is dismissed.
In order for a chapter 11 debtor to reorganize, they must file (and the court must confirm) a plan of reorganization. Simply put, the plan is a compromise between the major stakeholders in the case, including, but not limited to the debtor and its creditors. Most chapter 11 cases aim to confirm a plan, but that may not always be possible. Section 1121(b) of the Bankruptcy Code provides for an exclusivity period in which only the debtor may file a plan of reorganization. This period lasts 120 days after the date of the order for relief, and if the debtor does file a plan within the first 120 days, the exclusivity period is extended to 180 days after the order for relief for the debtor to seek acceptance of the plan by holders of claims and interests.
If the judge approves the reorganization plan and the creditors all "agree", then the plan can be confirmed. §1129 of the Bankruptcy Code requires the bankruptcy court reach certain conclusions prior to "confirming" or "approving" the plan and making it binding on all parties in the case. Most importantly, the bankruptcy court must find the plan (a) complies with applicable law, and (b) has been proposed in good faith. Furthermore, the court must determine whether the plan is "feasible," in other words, the court must safeguard that confirming the plan will not yield to liquidation down the road.
The plan must ensure that the debtor will be able to pay most administrative and priority claims (priority claims over unsecured claims) on the effective date.
Like other forms of bankruptcy, petitions filed under chapter 11 invoke the automatic stay of § 362. The automatic stay requires all creditors to cease collection attempts, and makes many post-petition debt collection efforts void or voidable. Under some circumstances, some creditors, or the United States Trustee, can request the court convert the case into a liquidation under chapter 7, or appoint a trustee to manage the debtor's business. The court will grant a motion to convert to chapter 7 or appoint a trustee if either of these actions is in the best interest of all creditors. Sometimes a company will liquidate under chapter 11 (perhaps in a 363 sale), in which the pre-existing management may be able to help get a higher price for divisions or other assets than a chapter 7 liquidation would be likely to achieve. Section 362(d) of the Bankruptcy Code allows the court to terminate, annul, or modify the continuation of the automatic stay as may be necessary or appropriate to balance the competing interests of the debtor, its estate, creditors, and other parties in interest and grants the bankruptcy court considerable flexibility to tailor relief to the exigencies of the circumstances. Relief from the automatic stay is generally sought by motion and, if opposed, is treated as a contested matter under Bankruptcy Rule 9014. A party seeking relief from the automatic stay must also pay the filing fee required by 28 U.S.C.A. § 1930(b).
In the new millennium, airlines have fallen under intense scrutiny for what many see as abusing Chapter 11 bankruptcy as a tool for escaping labor contracts, usually 30–35% of an airline's operating cost. Every major US airline has filed for Chapter 11 since 2002. In the space of 2 years (2002–2004) US Airways filed for bankruptcy twice leaving the AFL–CIO, pilot unions and other airline employees claiming the rules of Chapter 11 have helped turn the United States into a corporatocracy. The trustee or debtor-in-possession is given the right, under § 365 of the Bankruptcy Code, subject to court approval, to assume or reject executory contracts and unexpired leases. The trustee or debtor-in-possession must assume or reject an executory contract in its entirety, unless some portion of it is severable. The trustee or debtor-in-possession normally assumes a contract or lease if it is needed to operate the reorganized business or if it can be assigned or sold at a profit. The trustee or debtor-in-possession normally rejects a contract or lease to transform damage claims arising from the nonperformance of those obligations into a prepetition claim. In some situations, rejection can also limit the damages that a contract counterparty can claim against the debtor.
Chapter 11 follows the same priority scheme as other bankruptcy chapters. The priority structure is defined primarily by § 507 of the Bankruptcy Code (11 U.S.C. § 507).
As a general rule, administrative expenses (the actual, necessary expenses of preserving the bankruptcy estate, including expenses such as employee wages, and the cost of litigating the chapter 11 case) are paid first. Secured creditors—creditors who have a security interest, or collateral, in the debtor's property—will be paid before unsecured creditors. Unsecured creditors' claims are prioritized by § 507. For instance the claims of suppliers of products or employees of a company may be paid before other unsecured creditors are paid. Each priority level must be paid in full before the next lower priority level may receive payment.
Section 1110 (11 U.S.C. § 1110) generally provides a secured party with an interest in an aircraft the ability to take possession of the equipment within 60 days after a bankruptcy filing unless the airline cures all defaults. More specifically, the right of the lender to take possession of the secured equipment is not hampered by the automatic stay provisions of the Bankruptcy Code.
In August 2019, the Small Business Reorganization Act of 2019 ("SBRA") added Subchapter V to Chapter 11 of the Bankruptcy Code. Subchapter V, which took effect in February 2020, is reserved exclusively for the small business debtor with the purpose of expediting bankruptcy procedure and economically resolving small business bankruptcy cases.
Subchapter V retains many of the advantages of a traditional Chapter 11 case without the unnecessary procedural burdens and costs. It seeks to increase the debtor's ability to negotiate a successful reorganization and retain control of the business and increase oversight and ensure a quick reorganization.
A Subchapter V case contrasts from a traditional Chapter 11 in several key aspects: It's earmarked only for the "small business debtor" (as defined by the Bankruptcy Code), so, only a debtor can file a plan of reorganization. The SBRA requires the U.S. Trustee appoint a "subchapter V trustee" to every Subchapter V case to supervise and control estate funds, and facilitate the development of a consensual plan. It also eliminates automatic appointment of an official committee of unsecured creditors and abolishes quarterly fees usually paid to the U.S. Trustee throughout the case. Most notably, Subchapter V allows the small business owner to retain their equity in the business so long as the reorganization plan does not discriminate unfairly and is fair and equitable with respect to each class of claims or interests.
The reorganization and court process may take an inordinate amount of time, limiting the chances of a successful outcome and sufficient debtor-in-possession financing may be unavailable during an economic recession. A preplanned, pre-agreed approach between the debtor and its creditors (sometimes called a pre-packaged bankruptcy) may facilitate the desired result. A company undergoing Chapter 11 reorganization is effectively operating under the "protection" of the court until it emerges. An example is the airline industry in the United States; in 2006 over half the industry's seating capacity was on airlines that were in Chapter 11. These airlines were able to stop making debt payments, break their previously agreed upon labor union contracts, freeing up cash to expand routes or weather a price war against competitors — all with the bankruptcy court's approval.
Studies on the impact of forestalling the creditors' rights to enforce their security reach different conclusions.
Chapter 11 cases dropped by 60% from 1991 to 2003. One 2007 study found this was because businesses were turning to bankruptcy-like proceedings under state law, rather than the federal bankruptcy proceedings, including those under chapter 11. Insolvency proceedings under state law, the study stated, are currently faster, less expensive, and more private, with some states not even requiring court filings. However, a 2005 study claimed the drop may have been due to an increase in the incorrect classification of many bankruptcies as "consumer cases" rather than "business cases".
Cases involving more than US$50 million in assets are almost always handled in federal bankruptcy court, and not in bankruptcy-like state proceeding.
The largest bankruptcy in history was of the US investment bank Lehman Brothers Holdings Inc., which listed $639 billion in assets as of its Chapter 11 filing in 2008. The 16 largest corporate bankruptcies as of 13 December 2011
Enron, Lehman Brothers, MF Global and Refco have all ceased operations while others were acquired by other buyers or emerged as a new company with a similar name.
‡ The Enron assets were taken from the 10-Q filed on November 11, 2001. The company announced that the annual financials were under review at the time of filing for Chapter 11. | [
{
"paragraph_id": 0,
"text": "Chapter 11 of the United States Bankruptcy Code (Title 11 of the United States Code) permits reorganization under the bankruptcy laws of the United States. Such reorganization, known as Chapter 11 bankruptcy, is available to every business, whether organized as a corporation, partnership or sole proprietorship, and to individuals, although it is most prominently used by corporate entities. In contrast, Chapter 7 governs the process of a liquidation bankruptcy, though liquidation may also occur under Chapter 11; while Chapter 13 provides a reorganization process for the majority of private individuals.",
"title": ""
},
{
"paragraph_id": 1,
"text": "When a business is unable to service its debt or pay its creditors, the business or its creditors can file with a federal bankruptcy court for protection under either Chapter 7 or Chapter 11.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 2,
"text": "In Chapter 7, the business ceases operations, a trustee sells all of its assets, and then distributes the proceeds to its creditors. Any residual amount is returned to the owners of the company.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 3,
"text": "In Chapter 11, in most instances the debtor remains in control of its business operations as a debtor in possession, and is subject to the oversight and jurisdiction of the court.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 4,
"text": "A Chapter 11 bankruptcy will result in one of three outcomes for the debtor: reorganization, conversion to Chapter 7 bankruptcy, or dismissal. In order for a Chapter 11 debtor to reorganize, the debtor must file (and the court must confirm) a plan of reorganization. In effect, the plan is a compromise between the major stakeholders in the case, including the debtor and its creditors. Most Chapter 11 cases aim to confirm a plan, but that may not always be possible.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 5,
"text": "If the judge approves the reorganization plan and the creditors all agree, then the plan can be confirmed. Section 1129 of the Bankruptcy Code requires the bankruptcy court reach certain conclusions prior to confirming or approving the plan and making it binding on all parties in the case, most notably that the plan complies with applicable law and was proposed in good faith. The court must also find that the reorganization plan is feasible in that, unless the plan provides otherwise, the plan is not likely to be followed by further reorganization or liquidation.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 6,
"text": "In a Chapter 11 bankruptcy, the debtor corporation is typically recapitalized so that it emerges from bankruptcy with more equity and less debt, a process through which some of the debtor corporation's debts may be discharged. Determinations as to which debts are discharged, and how equity and other entitlements are distributed to various groups of investors, are often based on a valuation of the reorganized business. Bankruptcy valuation is often highly contentious because it is both subjective and important to case outcomes. The methods of valuation used in bankruptcy have changed over time, generally tracking methods used in investment banking, Delaware corporate law, and corporate and academic finance, but with a significant time lag.",
"title": "Chapter 11 overview"
},
{
"paragraph_id": 7,
"text": "Chapter 11 retains many of the features present in all, or most, bankruptcy proceedings in the United States. It provides additional tools for debtors as well. Most importantly, 11 U.S.C. § 1108 empowers the trustee to operate the debtor's business. In Chapter 11, unless a separate trustee is appointed for cause, the debtor, as debtor in possession, acts as trustee of the business.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 8,
"text": "Chapter 11 affords the debtor in possession a number of mechanisms to restructure its business. A debtor in possession can acquire financing and loans on favorable terms by giving new lenders first priority on the business's earnings. The court may also permit the debtor in possession to reject and cancel contracts. Debtors are also protected from other litigation against the business through the imposition of an automatic stay. While the automatic stay is in place, creditors are stayed from any collection attempts or activities against the debtor in possession, and most litigation against the debtor is stayed, or put on hold, until it can be resolved in bankruptcy court, or resumed in its original venue. An example of proceedings that are not necessarily stayed automatically are family law proceedings against a spouse or parent. Further, creditors may file with the court seeking relief from the automatic stay.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 9,
"text": "If the business is insolvent, its debts exceed its assets and the business is unable to pay debts as they come due, the bankruptcy restructuring may result in the company's owners being left with nothing; instead, the owners' rights and interests are ended and the company's creditors are left with ownership of the newly reorganized company.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 10,
"text": "All creditors are entitled to be heard by the court. The court is ultimately responsible for determining whether the proposed plan of reorganization complies with bankruptcy laws.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 11,
"text": "One controversy that has broken out in bankruptcy courts concerns the proper amount of disclosure that the court and other parties are entitled to receive from the members of the creditor's committees that play a large role in many proceedings.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 12,
"text": "Chapter 11 usually results in reorganization of the debtor's business or personal assets and debts, but can also be used as a mechanism for liquidation. Debtors may \"emerge\" from a chapter 11 bankruptcy within a few months or within several years, depending on the size and complexity of the bankruptcy. The Bankruptcy Code accomplishes this objective through the use of a bankruptcy plan. The debtor in possession typically has the first opportunity to propose a plan during the period of exclusivity. This period allows the debtor 120 days from the date of filing for chapter 11 to propose a plan of reorganization before any other party in interest may propose a plan. If the debtor proposes a plan within the 120-day exclusivity period, a 180-day exclusivity period from the date of filing for chapter 11 is granted in order to allow the debtor to gain confirmation of the proposed plan. With some exceptions, the plan may be proposed by any party in interest. Interested creditors then vote for a plan.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 13,
"text": "If the judge approves the reorganization plan and the creditors all agree, then the plan can be confirmed. If at least one class of creditors objects and votes against the plan, it may nonetheless be confirmed if the requirements of cramdown are met. In order to be confirmed over the creditors' objection, the plan must not discriminate against that class of creditors, and the plan must be found fair and equitable to that class. Upon confirmation, the plan becomes binding and identifies the treatment of debts and operations of the business for the duration of the plan. If a plan cannot be confirmed, the court may either convert the case to a liquidation under chapter 7, or, if in the best interests of the creditors and the estate, the case may be dismissed resulting in a return to the status quo before bankruptcy. If the case is dismissed, creditors will look to non-bankruptcy law in order to satisfy their claims.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 14,
"text": "In order to proceed to the confirmation hearing, a disclosure statement must be approved by the bankruptcy court. Once the disclosure statement is approved, the plan proponent will solicit votes from the classes of creditors. Solicitation is the process by which creditors vote on the proposed confirmation plan. This process can be complicated if creditors fail or refuse to vote. In which case, the plan proponent might tailor his or her efforts in obtaining votes, or the plan itself. The plan may be modified before confirmation, so long as the modified plan meets all the requirements of Chapter 11.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 15,
"text": "A chapter 11 case typically results in one of three outcomes: a reorganization; a conversion into chapter 7 liquidation, or it is dismissed.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 16,
"text": "In order for a chapter 11 debtor to reorganize, they must file (and the court must confirm) a plan of reorganization. Simply put, the plan is a compromise between the major stakeholders in the case, including, but not limited to the debtor and its creditors. Most chapter 11 cases aim to confirm a plan, but that may not always be possible. Section 1121(b) of the Bankruptcy Code provides for an exclusivity period in which only the debtor may file a plan of reorganization. This period lasts 120 days after the date of the order for relief, and if the debtor does file a plan within the first 120 days, the exclusivity period is extended to 180 days after the order for relief for the debtor to seek acceptance of the plan by holders of claims and interests.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 17,
"text": "If the judge approves the reorganization plan and the creditors all \"agree\", then the plan can be confirmed. §1129 of the Bankruptcy Code requires the bankruptcy court reach certain conclusions prior to \"confirming\" or \"approving\" the plan and making it binding on all parties in the case. Most importantly, the bankruptcy court must find the plan (a) complies with applicable law, and (b) has been proposed in good faith. Furthermore, the court must determine whether the plan is \"feasible,\" in other words, the court must safeguard that confirming the plan will not yield to liquidation down the road.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 18,
"text": "The plan must ensure that the debtor will be able to pay most administrative and priority claims (priority claims over unsecured claims) on the effective date.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 19,
"text": "Like other forms of bankruptcy, petitions filed under chapter 11 invoke the automatic stay of § 362. The automatic stay requires all creditors to cease collection attempts, and makes many post-petition debt collection efforts void or voidable. Under some circumstances, some creditors, or the United States Trustee, can request the court convert the case into a liquidation under chapter 7, or appoint a trustee to manage the debtor's business. The court will grant a motion to convert to chapter 7 or appoint a trustee if either of these actions is in the best interest of all creditors. Sometimes a company will liquidate under chapter 11 (perhaps in a 363 sale), in which the pre-existing management may be able to help get a higher price for divisions or other assets than a chapter 7 liquidation would be likely to achieve. Section 362(d) of the Bankruptcy Code allows the court to terminate, annul, or modify the continuation of the automatic stay as may be necessary or appropriate to balance the competing interests of the debtor, its estate, creditors, and other parties in interest and grants the bankruptcy court considerable flexibility to tailor relief to the exigencies of the circumstances. Relief from the automatic stay is generally sought by motion and, if opposed, is treated as a contested matter under Bankruptcy Rule 9014. A party seeking relief from the automatic stay must also pay the filing fee required by 28 U.S.C.A. § 1930(b).",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 20,
"text": "In the new millennium, airlines have fallen under intense scrutiny for what many see as abusing Chapter 11 bankruptcy as a tool for escaping labor contracts, usually 30–35% of an airline's operating cost. Every major US airline has filed for Chapter 11 since 2002. In the space of 2 years (2002–2004) US Airways filed for bankruptcy twice leaving the AFL–CIO, pilot unions and other airline employees claiming the rules of Chapter 11 have helped turn the United States into a corporatocracy. The trustee or debtor-in-possession is given the right, under § 365 of the Bankruptcy Code, subject to court approval, to assume or reject executory contracts and unexpired leases. The trustee or debtor-in-possession must assume or reject an executory contract in its entirety, unless some portion of it is severable. The trustee or debtor-in-possession normally assumes a contract or lease if it is needed to operate the reorganized business or if it can be assigned or sold at a profit. The trustee or debtor-in-possession normally rejects a contract or lease to transform damage claims arising from the nonperformance of those obligations into a prepetition claim. In some situations, rejection can also limit the damages that a contract counterparty can claim against the debtor.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 21,
"text": "Chapter 11 follows the same priority scheme as other bankruptcy chapters. The priority structure is defined primarily by § 507 of the Bankruptcy Code (11 U.S.C. § 507).",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 22,
"text": "As a general rule, administrative expenses (the actual, necessary expenses of preserving the bankruptcy estate, including expenses such as employee wages, and the cost of litigating the chapter 11 case) are paid first. Secured creditors—creditors who have a security interest, or collateral, in the debtor's property—will be paid before unsecured creditors. Unsecured creditors' claims are prioritized by § 507. For instance the claims of suppliers of products or employees of a company may be paid before other unsecured creditors are paid. Each priority level must be paid in full before the next lower priority level may receive payment.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 23,
"text": "Section 1110 (11 U.S.C. § 1110) generally provides a secured party with an interest in an aircraft the ability to take possession of the equipment within 60 days after a bankruptcy filing unless the airline cures all defaults. More specifically, the right of the lender to take possession of the secured equipment is not hampered by the automatic stay provisions of the Bankruptcy Code.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 24,
"text": "In August 2019, the Small Business Reorganization Act of 2019 (\"SBRA\") added Subchapter V to Chapter 11 of the Bankruptcy Code. Subchapter V, which took effect in February 2020, is reserved exclusively for the small business debtor with the purpose of expediting bankruptcy procedure and economically resolving small business bankruptcy cases.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 25,
"text": "Subchapter V retains many of the advantages of a traditional Chapter 11 case without the unnecessary procedural burdens and costs. It seeks to increase the debtor's ability to negotiate a successful reorganization and retain control of the business and increase oversight and ensure a quick reorganization.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 26,
"text": "A Subchapter V case contrasts from a traditional Chapter 11 in several key aspects: It's earmarked only for the \"small business debtor\" (as defined by the Bankruptcy Code), so, only a debtor can file a plan of reorganization. The SBRA requires the U.S. Trustee appoint a \"subchapter V trustee\" to every Subchapter V case to supervise and control estate funds, and facilitate the development of a consensual plan. It also eliminates automatic appointment of an official committee of unsecured creditors and abolishes quarterly fees usually paid to the U.S. Trustee throughout the case. Most notably, Subchapter V allows the small business owner to retain their equity in the business so long as the reorganization plan does not discriminate unfairly and is fair and equitable with respect to each class of claims or interests.",
"title": "Features of Chapter 11 reorganization"
},
{
"paragraph_id": 27,
"text": "The reorganization and court process may take an inordinate amount of time, limiting the chances of a successful outcome and sufficient debtor-in-possession financing may be unavailable during an economic recession. A preplanned, pre-agreed approach between the debtor and its creditors (sometimes called a pre-packaged bankruptcy) may facilitate the desired result. A company undergoing Chapter 11 reorganization is effectively operating under the \"protection\" of the court until it emerges. An example is the airline industry in the United States; in 2006 over half the industry's seating capacity was on airlines that were in Chapter 11. These airlines were able to stop making debt payments, break their previously agreed upon labor union contracts, freeing up cash to expand routes or weather a price war against competitors — all with the bankruptcy court's approval.",
"title": "Considerations"
},
{
"paragraph_id": 28,
"text": "Studies on the impact of forestalling the creditors' rights to enforce their security reach different conclusions.",
"title": "Considerations"
},
{
"paragraph_id": 29,
"text": "Chapter 11 cases dropped by 60% from 1991 to 2003. One 2007 study found this was because businesses were turning to bankruptcy-like proceedings under state law, rather than the federal bankruptcy proceedings, including those under chapter 11. Insolvency proceedings under state law, the study stated, are currently faster, less expensive, and more private, with some states not even requiring court filings. However, a 2005 study claimed the drop may have been due to an increase in the incorrect classification of many bankruptcies as \"consumer cases\" rather than \"business cases\".",
"title": "Statistics"
},
{
"paragraph_id": 30,
"text": "Cases involving more than US$50 million in assets are almost always handled in federal bankruptcy court, and not in bankruptcy-like state proceeding.",
"title": "Statistics"
},
{
"paragraph_id": 31,
"text": "The largest bankruptcy in history was of the US investment bank Lehman Brothers Holdings Inc., which listed $639 billion in assets as of its Chapter 11 filing in 2008. The 16 largest corporate bankruptcies as of 13 December 2011",
"title": "Statistics"
},
{
"paragraph_id": 32,
"text": "Enron, Lehman Brothers, MF Global and Refco have all ceased operations while others were acquired by other buyers or emerged as a new company with a similar name.",
"title": "Statistics"
},
{
"paragraph_id": 33,
"text": "‡ The Enron assets were taken from the 10-Q filed on November 11, 2001. The company announced that the annual financials were under review at the time of filing for Chapter 11.",
"title": "Statistics"
}
] | Chapter 11 of the United States Bankruptcy Code permits reorganization under the bankruptcy laws of the United States. Such reorganization, known as Chapter 11 bankruptcy, is available to every business, whether organized as a corporation, partnership or sole proprietorship, and to individuals, although it is most prominently used by corporate entities. In contrast, Chapter 7 governs the process of a liquidation bankruptcy, though liquidation may also occur under Chapter 11; while Chapter 13 provides a reorganization process for the majority of private individuals. | 2001-11-30T12:28:38Z | 2023-11-25T12:55:30Z | [
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7,280 | Conjugation | Conjugation or conjugate may refer to: | [
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"text": "Conjugation or conjugate may refer to:",
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7,283 | Controversy | Controversy is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin controversia, as a composite of controversus – "turned in an opposite direction".
In the theory of law, a controversy differs from a legal case; while legal cases include all suits, criminal as well as civil, a controversy is a purely civil proceeding.
For example, the Case or Controversy Clause of Article Three of the United States Constitution (Section 2, Clause 1) states that "the judicial Power shall extend ... to Controversies to which the United States shall be a Party". This clause has been deemed to impose a requirement that United States federal courts are not permitted to cases that do not pose an actual controversy—that is, an actual dispute between adverse parties which is capable of being resolved by the [court]. In addition to setting out the scope of the jurisdiction of the federal judiciary, it also prohibits courts from issuing advisory opinions, or from hearing cases that are either unripe, meaning that the controversy has not arisen yet, or moot, meaning that the controversy has already been resolved.
Benford's law of controversy, as expressed by the astrophysicist and science fiction author Gregory Benford in 1980, states: Passion is inversely proportional to the amount of real information available. In other words, it claims that the less factual information is available on a topic, the more controversy can arise around that topic – and the more facts are available, the less controversy can arise. Thus, for example, controversies in physics would be limited to subject areas where experiments cannot be carried out yet, whereas controversies would be inherent to politics, where communities must frequently decide on courses of action based on insufficient information.
Controversies are frequently thought to be a result of a lack of confidence on the part of the disputants – as implied by Benford's law of controversy, which only talks about lack of information ("passion is inversely proportional to the amount of real information available"). For example, in analyses of the political controversy over anthropogenic climate change, which is exceptionally virulent in the United States, it has been proposed that those who are opposed to the scientific consensus do so because they don't have enough information about the topic. A study of 1540 US adults found instead that levels of scientific literacy correlated with the strength of opinion on climate change, but not on which side of the debate that they stood.
The puzzling phenomenon of two individuals being able to reach different conclusions after being exposed to the same facts has been frequently explained (particularly by Daniel Kahneman) by reference to a 'bounded rationality' – in other words, that most judgments are made using fast acting heuristics that work well in every day situations, but are not amenable to decision-making about complex subjects such as climate change. Anchoring has been particularly identified as relevant in climate change controversies as individuals are found to be more positively inclined to believe in climate change if the outside temperature is higher, if they have been primed to think about heat, and if they are primed with higher temperatures when thinking about the future temperature increases from climate change.
In other controversies – such as that around the HPV vaccine, the same evidence seemed to license inference to radically different conclusions. Kahan et al. explained this by the cognitive biases of biased assimilation and a credibility heuristic.
Similar effects on reasoning are also seen in non-scientific controversies, for example in the gun control debate in the United States. As with other controversies, it has been suggested that exposure to empirical facts would be sufficient to resolve the debate once and for all. In computer simulations of cultural communities, beliefs were found to polarize within isolated sub-groups, based on the mistaken belief of the community's unhindered access to ground truth. Such confidence in the group to find the ground truth is explicable through the success of wisdom of the crowd based inferences. However, if there is no access to the ground truth, as there was not in this model, the method will fail.
Bayesian decision theory allows these failures of rationality to be described as part of a statistically optimized system for decision making. Experiments and computational models in multisensory integration have shown that sensory input from different senses is integrated in a statistically optimal way, in addition, it appears that the kind of inferences used to infer single sources for multiple sensory inputs uses a Bayesian inference about the causal origin of the sensory stimuli. As such, it appears neurobiologically plausible that the brain implements decision-making procedures that are close to optimal for Bayesian inference.
Brocas and Carrillo propose a model to make decisions based on noisy sensory inputs, beliefs about the state of the world are modified by Bayesian updating, and then decisions are made based on beliefs passing a threshold. They show that this model, when optimized for single-step decision making, produces belief anchoring and polarization of opinions – exactly as described in the global warming controversy context – in spite of identical evidence presented, the pre-existing beliefs (or evidence presented first) has an overwhelming effect on the beliefs formed. In addition, the preferences of the agent (the particular rewards that they value) also cause the beliefs formed to change – this explains the biased assimilation (also known as confirmation bias) shown above. This model allows the production of controversy to be seen as a consequence of a decision maker optimized for single-step decision making, rather than as a result of limited reasoning in the bounded rationality of Daniel Kahneman. | [
{
"paragraph_id": 0,
"text": "Controversy is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin controversia, as a composite of controversus – \"turned in an opposite direction\".",
"title": ""
},
{
"paragraph_id": 1,
"text": "In the theory of law, a controversy differs from a legal case; while legal cases include all suits, criminal as well as civil, a controversy is a purely civil proceeding.",
"title": "Legal"
},
{
"paragraph_id": 2,
"text": "For example, the Case or Controversy Clause of Article Three of the United States Constitution (Section 2, Clause 1) states that \"the judicial Power shall extend ... to Controversies to which the United States shall be a Party\". This clause has been deemed to impose a requirement that United States federal courts are not permitted to cases that do not pose an actual controversy—that is, an actual dispute between adverse parties which is capable of being resolved by the [court]. In addition to setting out the scope of the jurisdiction of the federal judiciary, it also prohibits courts from issuing advisory opinions, or from hearing cases that are either unripe, meaning that the controversy has not arisen yet, or moot, meaning that the controversy has already been resolved.",
"title": "Legal"
},
{
"paragraph_id": 3,
"text": "Benford's law of controversy, as expressed by the astrophysicist and science fiction author Gregory Benford in 1980, states: Passion is inversely proportional to the amount of real information available. In other words, it claims that the less factual information is available on a topic, the more controversy can arise around that topic – and the more facts are available, the less controversy can arise. Thus, for example, controversies in physics would be limited to subject areas where experiments cannot be carried out yet, whereas controversies would be inherent to politics, where communities must frequently decide on courses of action based on insufficient information.",
"title": "Benford's law"
},
{
"paragraph_id": 4,
"text": "Controversies are frequently thought to be a result of a lack of confidence on the part of the disputants – as implied by Benford's law of controversy, which only talks about lack of information (\"passion is inversely proportional to the amount of real information available\"). For example, in analyses of the political controversy over anthropogenic climate change, which is exceptionally virulent in the United States, it has been proposed that those who are opposed to the scientific consensus do so because they don't have enough information about the topic. A study of 1540 US adults found instead that levels of scientific literacy correlated with the strength of opinion on climate change, but not on which side of the debate that they stood.",
"title": "Psychological bases"
},
{
"paragraph_id": 5,
"text": "The puzzling phenomenon of two individuals being able to reach different conclusions after being exposed to the same facts has been frequently explained (particularly by Daniel Kahneman) by reference to a 'bounded rationality' – in other words, that most judgments are made using fast acting heuristics that work well in every day situations, but are not amenable to decision-making about complex subjects such as climate change. Anchoring has been particularly identified as relevant in climate change controversies as individuals are found to be more positively inclined to believe in climate change if the outside temperature is higher, if they have been primed to think about heat, and if they are primed with higher temperatures when thinking about the future temperature increases from climate change.",
"title": "Psychological bases"
},
{
"paragraph_id": 6,
"text": "In other controversies – such as that around the HPV vaccine, the same evidence seemed to license inference to radically different conclusions. Kahan et al. explained this by the cognitive biases of biased assimilation and a credibility heuristic.",
"title": "Psychological bases"
},
{
"paragraph_id": 7,
"text": "Similar effects on reasoning are also seen in non-scientific controversies, for example in the gun control debate in the United States. As with other controversies, it has been suggested that exposure to empirical facts would be sufficient to resolve the debate once and for all. In computer simulations of cultural communities, beliefs were found to polarize within isolated sub-groups, based on the mistaken belief of the community's unhindered access to ground truth. Such confidence in the group to find the ground truth is explicable through the success of wisdom of the crowd based inferences. However, if there is no access to the ground truth, as there was not in this model, the method will fail.",
"title": "Psychological bases"
},
{
"paragraph_id": 8,
"text": "Bayesian decision theory allows these failures of rationality to be described as part of a statistically optimized system for decision making. Experiments and computational models in multisensory integration have shown that sensory input from different senses is integrated in a statistically optimal way, in addition, it appears that the kind of inferences used to infer single sources for multiple sensory inputs uses a Bayesian inference about the causal origin of the sensory stimuli. As such, it appears neurobiologically plausible that the brain implements decision-making procedures that are close to optimal for Bayesian inference.",
"title": "Psychological bases"
},
{
"paragraph_id": 9,
"text": "Brocas and Carrillo propose a model to make decisions based on noisy sensory inputs, beliefs about the state of the world are modified by Bayesian updating, and then decisions are made based on beliefs passing a threshold. They show that this model, when optimized for single-step decision making, produces belief anchoring and polarization of opinions – exactly as described in the global warming controversy context – in spite of identical evidence presented, the pre-existing beliefs (or evidence presented first) has an overwhelming effect on the beliefs formed. In addition, the preferences of the agent (the particular rewards that they value) also cause the beliefs formed to change – this explains the biased assimilation (also known as confirmation bias) shown above. This model allows the production of controversy to be seen as a consequence of a decision maker optimized for single-step decision making, rather than as a result of limited reasoning in the bounded rationality of Daniel Kahneman.",
"title": "Psychological bases"
}
] | Controversy is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin controversia, as a composite of controversus – "turned in an opposite direction". | 2001-11-30T18:10:45Z | 2023-11-27T15:46:26Z | [
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] | https://en.wikipedia.org/wiki/Controversy |
7,284 | Centromere | The centromere links a pair of sister chromatids together during cell division. This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore.
The physical role of the centromere is to act as the site of assembly of the kinetochores – a highly complex multiprotein structure that is responsible for the actual events of chromosome segregation – i.e. binding microtubules and signaling to the cell cycle machinery when all chromosomes have adopted correct attachments to the spindle, so that it is safe for cell division to proceed to completion and for cells to enter anaphase.
There are, broadly speaking, two types of centromeres. "Point centromeres" bind to specific proteins that recognize particular DNA sequences with high efficiency. Any piece of DNA with the point centromere DNA sequence on it will typically form a centromere if present in the appropriate species. The best characterized point centromeres are those of the budding yeast, Saccharomyces cerevisiae. "Regional centromeres" is the term coined to describe most centromeres, which typically form on regions of preferred DNA sequence, but which can form on other DNA sequences as well. The signal for formation of a regional centromere appears to be epigenetic. Most organisms, ranging from the fission yeast Schizosaccharomyces pombe to humans, have regional centromeres.
Regarding mitotic chromosome structure, centromeres represent a constricted region of the chromosome (often referred to as the primary constriction) where two identical sister chromatids are most closely in contact. When cells enter mitosis, the sister chromatids (the two copies of each chromosomal DNA molecule resulting from DNA replication in chromatin form) are linked along their length by the action of the cohesin complex. It is now believed that this complex is mostly released from chromosome arms during prophase, so that by the time the chromosomes line up at the mid-plane of the mitotic spindle (also known as the metaphase plate), the last place where they are linked with one another is in the chromatin in and around the centromere.
In humans, centromere positions define the chromosomal karyotype, in which each chromosome has two arms, p (the shorter of the two) and q (the longer). The short arm 'p' is reportedly named for the French word "petit" meaning 'small'. The position of the centromere relative to any particular linear chromosome is used to classify chromosomes as metacentric, submetacentric, acrocentric, telocentric, or holocentric.
Metacentric means that the centromere is positioned midway between the chromosome ends, resulting in the arms being approximately equal in length. When the centromeres are metacentric, the chromosomes appear to be "x-shaped."
Submetacentric means that the centromere is positioned below the middle, with one chromosome arm shorter than the other, often resulting in an L shape.
An acrocentric chromosome's centromere is situated so that one of the chromosome arms is much shorter than the other. The "acro-" in acrocentric refers to the Greek word for "peak." The human genome has six acrocentric chromosomes, including five autosomal chromosomes (13, 14, 15, 21, 22) and the Y chromosome.
Short acrocentric p-arms contain little genetic material and can be translocated without significant harm, as in a balanced Robertsonian translocation. In addition to some protein coding genes, human acrocentric p-arms also contain Nucleolus organizer regions (NORs), from which ribosomal RNA is transcribed. However, a proportion of acrocentric p-arms in cell lines and tissues from normal human donors do not contain detectable NORs. The domestic horse genome includes one metacentric chromosome that is homologous to two acrocentric chromosomes in the conspecific but undomesticated Przewalski's horse. This may reflect either fixation of a balanced Robertsonian translocation in domestic horses or, conversely, fixation of the fission of one metacentric chromosome into two acrocentric chromosomes in Przewalski's horses. A similar situation exists between the human and great ape genomes, with a reduction of two acrocentric chromosomes in the great apes to one metacentric chromosome in humans (see aneuploidy and the human chromosome 2).
Many diseases from the result of unbalanced translocations more frequently involve acrocentric chromosomes than other non-acrocentric chromosomes. Acrocentric chromosomes are usually located in and around the nucleolus. As a result these chromosomes tend to be less densely packed than chromosomes in the nuclear periphery. Consistently, chromosomal regions that are less densely packed are also more prone to chromosomal translocations in cancers.
Telocentric chromosomes have a centromere at one end of the chromosome and therefore exhibit only one arm at the cytological (microscopic) level. They are not present in human but can form through cellular chromosomal errors. Telocentric chromosomes occur naturally in many species, such as the house mouse, in which all chromosomes except the Y are telocentric.
Subtelocentric chromosomes' centromeres are located between the middle and the end of the chromosomes, but reside closer to the end of the chromosomes.
An acentric chromosome is fragment of a chromosome that lacks a centromere. Since centromeres are the attachment point for spindle fibers in cell division, acentric fragments are not evenly distributed to daughter cells during cell division. As a result, a daughter cell will lack the acentric fragment and deleterious consequences could occur.
Chromosome-breaking events can also generate acentric chromosomes or acentric fragments.
A dicentric chromosome is an abnormal chromosome with two centromeres, which can be unstable through cell divisions. It can form through translocation between or fusion of two chromosome segments, each with a centromere. Some rearrangements produce both dicentric chromosomes and acentric fragments which can not attach to spindles at mitosis. The formation of dicentric chromosomes has been attributed to genetic processes, such as Robertsonian translocation and paracentric inversion. Dicentric chromosomes can have a variety of fates, including mitotic stability. In some cases, their stability comes from inactivation of one of the two centromeres to make a functionally monocentric chromosome capable of normal transmission to daughter cells during cell division.
For example, human chromosome 2, which is believed to be the result of a Robertsonian translocation at some point in the evolution between the great apes and Homo, has a second, vestigial, centromere near the middle of its long arm.
The monocentric chromosome is a chromosome that has only one centromere in a chromosome and forms a narrow constriction.
Monocentric centromeres are the most common structure on highly repetitive DNA in plants and animals.
Unlike monocentric chromosomes, holocentric chromosomes have no distinct primary constriction when viewed at mitosis. Instead, spindle fibers attach along almost the entire (Greek: holo-) length of the chromosome. In holocentric chromosomes centromeric proteins, such as CENPA (CenH3) are spread over the whole chromosome. The nematode, Caenorhabditis elegans, is a well-known example of an organism with holocentric chromosomes, but this type of centromere can be found in various species, plants, and animals, across eukaryotes. Holocentromeres are actually composed of multiple distributed centromere units that form a line-like structure along the chromosomes during mitosis. Alternative or nonconventional strategies are deployed at meiosis to achieve the homologous chromosome pairing and segregation needed to produce viable gametes or gametophytes for sexual reproduction.
Different types of holocentromeres exist in different species, namely with or without centromeric repetitive DNA sequences and with or without CenH3. Holocentricity has evolved at least 13 times independently in various green algae, protozoans, invertebrates, and different plant families. Contrary to monocentric species where acentric fragments usually become lost during cell division, the breakage of holocentric chromosomes creates fragments with normal spindle fiber attachment sites. Because of this, organisms with holocentric chromosomes can more rapidly evolve karyotype variation, able to heal fragmented chromosomes through subsequent addition of telomere caps at the sites of breakage.
Based on the micrographic characteristics of size, position of the centromere and sometimes the presence of a chromosomal satellite, the human chromosomes are classified into the following groups:
There are two types of centromeres. In regional centromeres, DNA sequences contribute to but do not define function. Regional centromeres contain large amounts of DNA and are often packaged into heterochromatin. In most eukaryotes, the centromere's DNA sequence consists of large arrays of repetitive DNA (e.g. satellite DNA) where the sequence within individual repeat elements is similar but not identical. In humans, the primary centromeric repeat unit is called α-satellite (or alphoid), although a number of other sequence types are found in this region. Centromere satellites are hypothesized to evolve by a process called layered expansion. They evolve rapidly between species, and analyses in wild mice show that satellite copy number and heterogeneity relates to population origins and subspecies. Additionally, satellite sequences may be affected by inbreeding.
Point centromeres are smaller and more compact. DNA sequences are both necessary and sufficient to specify centromere identity and function in organisms with point centromeres. In budding yeasts, the centromere region is relatively small (about 125 bp DNA) and contains two highly conserved DNA sequences that serve as binding sites for essential kinetochore proteins.
Since centromeric DNA sequence is not the key determinant of centromeric identity in metazoans, it is thought that epigenetic inheritance plays a major role in specifying the centromere. The daughter chromosomes will assemble centromeres in the same place as the parent chromosome, independent of sequence. It has been proposed that histone H3 variant CENP-A (Centromere Protein A) is the epigenetic mark of the centromere. The question arises whether there must be still some original way in which the centromere is specified, even if it is subsequently propagated epigenetically. If the centromere is inherited epigenetically from one generation to the next, the problem is pushed back to the origin of the first metazoans.
On the other hand, thanks to comparisons of the centromeres in the X chromosomes, epigenetic and structural variations have been seen in these regions. In addition, a recent assembly of the human genome has detected a possible mechanism of how pericentromeric and centromeric structures evolve, through a layered expansion model for αSat sequences. This model proposes that different αSat sequence repeats emerge periodically and expand within an active vector, displacing old sequences, and becoming the site of kinetochore assembly. The αSat can originate from the same, or from different vectors. As this process is repeated over time, the layers that flank the active centromere shrink and deteriorate. This process raises questions about the relationship between this dynamic evolutionary process and the position of the centromere.
The centromeric DNA is normally in a heterochromatin state, which is essential for the recruitment of the cohesin complex that mediates sister chromatid cohesion after DNA replication as well as coordinating sister chromatid separation during anaphase. In this chromatin, the normal histone H3 is replaced with a centromere-specific variant, CENP-A in humans. The presence of CENP-A is believed to be important for the assembly of the kinetochore on the centromere. CENP-C has been shown to localise almost exclusively to these regions of CENP-A associated chromatin. In human cells, the histones are found to be most enriched for H4K20me3 and H3K9me3 which are known heterochromatic modifications. In Drosophila, Islands of retroelements are major components of the centromeres.
In the yeast Schizosaccharomyces pombe (and probably in other eukaryotes), the formation of centromeric heterochromatin is connected to RNAi. In nematodes such as Caenorhabditis elegans, some plants, and the insect orders Lepidoptera and Hemiptera, chromosomes are "holocentric", indicating that there is not a primary site of microtubule attachments or a primary constriction, and a "diffuse" kinetochore assembles along the entire length of the chromosome.
In rare cases, neocentromeres can form at new sites on a chromosome as a result of a repositioning of the centromere. This phenomenon is most well known from human clinical studies and there are currently over 90 known human neocentromeres identified on 20 different chromosomes. The formation of a neocentromere must be coupled with the inactivation of the previous centromere, since chromosomes with two functional centromeres (Dicentric chromosome) will result in chromosome breakage during mitosis. In some unusual cases human neocentromeres have been observed to form spontaneously on fragmented chromosomes. Some of these new positions were originally euchromatic and lack alpha satellite DNA altogether. Neocentromeres lack the repetitive structure seen in normal centromeres which suggest that centromere formation is mainly controlled epigenetically. Over time a neocentromere can accumulate repetitive elements and mature into what is known as an evolutionary new centromere. There are several well known examples in primate chromosomes where the centromere position is different from the human centromere of the same chromosome and is thought to be evolutionary new centromeres. Centromere repositioning and the formation of evolutionary new centromeres has been suggested to be a mechanism of speciation.
Centromere proteins are also the autoantigenic target for some anti-nuclear antibodies, such as anti-centromere antibodies.
It has been known that centromere misregulation contributes to mis-segregation of chromosomes, which is strongly related to cancer and miscarriage. Notably, overexpression of many centromere genes have been linked to cancer malignant phenotypes. Overexpression of these centromere genes can increase genomic instability in cancers. Elevated genomic instability on one hand relates to malignant phenotypes; on the other hand, it makes the tumor cells more vulnerable to specific adjuvant therapies such as certain chemotherapies and radiotherapy. Instability of centromere repetitive DNA was recently shown in cancer and aging.
When DNA breaks occur at centromeres in the G1 phase of the cell cycle, the cells are able to recruit the homologous recombinational repair machinery to the damaged site, even in the absence of a sister chromatid. It appears that homologous recombinational repair can occur at centromeric breaks throughout the cell cycle in order to prevent the activation of inaccurate mutagenic DNA repair pathways and to preserve centromeric integrity.
The word centromere (/ˈsɛntrəˌmɪər/) uses combining forms of centro- and -mere, yielding "central part", describing the centromere's location at the center of the chromosome. | [
{
"paragraph_id": 0,
"text": "The centromere links a pair of sister chromatids together during cell division. This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The physical role of the centromere is to act as the site of assembly of the kinetochores – a highly complex multiprotein structure that is responsible for the actual events of chromosome segregation – i.e. binding microtubules and signaling to the cell cycle machinery when all chromosomes have adopted correct attachments to the spindle, so that it is safe for cell division to proceed to completion and for cells to enter anaphase.",
"title": ""
},
{
"paragraph_id": 2,
"text": "There are, broadly speaking, two types of centromeres. \"Point centromeres\" bind to specific proteins that recognize particular DNA sequences with high efficiency. Any piece of DNA with the point centromere DNA sequence on it will typically form a centromere if present in the appropriate species. The best characterized point centromeres are those of the budding yeast, Saccharomyces cerevisiae. \"Regional centromeres\" is the term coined to describe most centromeres, which typically form on regions of preferred DNA sequence, but which can form on other DNA sequences as well. The signal for formation of a regional centromere appears to be epigenetic. Most organisms, ranging from the fission yeast Schizosaccharomyces pombe to humans, have regional centromeres.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Regarding mitotic chromosome structure, centromeres represent a constricted region of the chromosome (often referred to as the primary constriction) where two identical sister chromatids are most closely in contact. When cells enter mitosis, the sister chromatids (the two copies of each chromosomal DNA molecule resulting from DNA replication in chromatin form) are linked along their length by the action of the cohesin complex. It is now believed that this complex is mostly released from chromosome arms during prophase, so that by the time the chromosomes line up at the mid-plane of the mitotic spindle (also known as the metaphase plate), the last place where they are linked with one another is in the chromatin in and around the centromere.",
"title": ""
},
{
"paragraph_id": 4,
"text": "In humans, centromere positions define the chromosomal karyotype, in which each chromosome has two arms, p (the shorter of the two) and q (the longer). The short arm 'p' is reportedly named for the French word \"petit\" meaning 'small'. The position of the centromere relative to any particular linear chromosome is used to classify chromosomes as metacentric, submetacentric, acrocentric, telocentric, or holocentric.",
"title": "Position"
},
{
"paragraph_id": 5,
"text": "Metacentric means that the centromere is positioned midway between the chromosome ends, resulting in the arms being approximately equal in length. When the centromeres are metacentric, the chromosomes appear to be \"x-shaped.\"",
"title": "Position"
},
{
"paragraph_id": 6,
"text": "Submetacentric means that the centromere is positioned below the middle, with one chromosome arm shorter than the other, often resulting in an L shape.",
"title": "Position"
},
{
"paragraph_id": 7,
"text": "An acrocentric chromosome's centromere is situated so that one of the chromosome arms is much shorter than the other. The \"acro-\" in acrocentric refers to the Greek word for \"peak.\" The human genome has six acrocentric chromosomes, including five autosomal chromosomes (13, 14, 15, 21, 22) and the Y chromosome.",
"title": "Position"
},
{
"paragraph_id": 8,
"text": "Short acrocentric p-arms contain little genetic material and can be translocated without significant harm, as in a balanced Robertsonian translocation. In addition to some protein coding genes, human acrocentric p-arms also contain Nucleolus organizer regions (NORs), from which ribosomal RNA is transcribed. However, a proportion of acrocentric p-arms in cell lines and tissues from normal human donors do not contain detectable NORs. The domestic horse genome includes one metacentric chromosome that is homologous to two acrocentric chromosomes in the conspecific but undomesticated Przewalski's horse. This may reflect either fixation of a balanced Robertsonian translocation in domestic horses or, conversely, fixation of the fission of one metacentric chromosome into two acrocentric chromosomes in Przewalski's horses. A similar situation exists between the human and great ape genomes, with a reduction of two acrocentric chromosomes in the great apes to one metacentric chromosome in humans (see aneuploidy and the human chromosome 2).",
"title": "Position"
},
{
"paragraph_id": 9,
"text": "Many diseases from the result of unbalanced translocations more frequently involve acrocentric chromosomes than other non-acrocentric chromosomes. Acrocentric chromosomes are usually located in and around the nucleolus. As a result these chromosomes tend to be less densely packed than chromosomes in the nuclear periphery. Consistently, chromosomal regions that are less densely packed are also more prone to chromosomal translocations in cancers.",
"title": "Position"
},
{
"paragraph_id": 10,
"text": "Telocentric chromosomes have a centromere at one end of the chromosome and therefore exhibit only one arm at the cytological (microscopic) level. They are not present in human but can form through cellular chromosomal errors. Telocentric chromosomes occur naturally in many species, such as the house mouse, in which all chromosomes except the Y are telocentric.",
"title": "Position"
},
{
"paragraph_id": 11,
"text": "Subtelocentric chromosomes' centromeres are located between the middle and the end of the chromosomes, but reside closer to the end of the chromosomes.",
"title": "Position"
},
{
"paragraph_id": 12,
"text": "An acentric chromosome is fragment of a chromosome that lacks a centromere. Since centromeres are the attachment point for spindle fibers in cell division, acentric fragments are not evenly distributed to daughter cells during cell division. As a result, a daughter cell will lack the acentric fragment and deleterious consequences could occur.",
"title": "Centromere types"
},
{
"paragraph_id": 13,
"text": "Chromosome-breaking events can also generate acentric chromosomes or acentric fragments.",
"title": "Centromere types"
},
{
"paragraph_id": 14,
"text": "A dicentric chromosome is an abnormal chromosome with two centromeres, which can be unstable through cell divisions. It can form through translocation between or fusion of two chromosome segments, each with a centromere. Some rearrangements produce both dicentric chromosomes and acentric fragments which can not attach to spindles at mitosis. The formation of dicentric chromosomes has been attributed to genetic processes, such as Robertsonian translocation and paracentric inversion. Dicentric chromosomes can have a variety of fates, including mitotic stability. In some cases, their stability comes from inactivation of one of the two centromeres to make a functionally monocentric chromosome capable of normal transmission to daughter cells during cell division.",
"title": "Centromere types"
},
{
"paragraph_id": 15,
"text": "For example, human chromosome 2, which is believed to be the result of a Robertsonian translocation at some point in the evolution between the great apes and Homo, has a second, vestigial, centromere near the middle of its long arm.",
"title": "Centromere types"
},
{
"paragraph_id": 16,
"text": "The monocentric chromosome is a chromosome that has only one centromere in a chromosome and forms a narrow constriction.",
"title": "Centromere types"
},
{
"paragraph_id": 17,
"text": "Monocentric centromeres are the most common structure on highly repetitive DNA in plants and animals.",
"title": "Centromere types"
},
{
"paragraph_id": 18,
"text": "Unlike monocentric chromosomes, holocentric chromosomes have no distinct primary constriction when viewed at mitosis. Instead, spindle fibers attach along almost the entire (Greek: holo-) length of the chromosome. In holocentric chromosomes centromeric proteins, such as CENPA (CenH3) are spread over the whole chromosome. The nematode, Caenorhabditis elegans, is a well-known example of an organism with holocentric chromosomes, but this type of centromere can be found in various species, plants, and animals, across eukaryotes. Holocentromeres are actually composed of multiple distributed centromere units that form a line-like structure along the chromosomes during mitosis. Alternative or nonconventional strategies are deployed at meiosis to achieve the homologous chromosome pairing and segregation needed to produce viable gametes or gametophytes for sexual reproduction.",
"title": "Centromere types"
},
{
"paragraph_id": 19,
"text": "Different types of holocentromeres exist in different species, namely with or without centromeric repetitive DNA sequences and with or without CenH3. Holocentricity has evolved at least 13 times independently in various green algae, protozoans, invertebrates, and different plant families. Contrary to monocentric species where acentric fragments usually become lost during cell division, the breakage of holocentric chromosomes creates fragments with normal spindle fiber attachment sites. Because of this, organisms with holocentric chromosomes can more rapidly evolve karyotype variation, able to heal fragmented chromosomes through subsequent addition of telomere caps at the sites of breakage.",
"title": "Centromere types"
},
{
"paragraph_id": 20,
"text": "Based on the micrographic characteristics of size, position of the centromere and sometimes the presence of a chromosomal satellite, the human chromosomes are classified into the following groups:",
"title": "Centromere types"
},
{
"paragraph_id": 21,
"text": "There are two types of centromeres. In regional centromeres, DNA sequences contribute to but do not define function. Regional centromeres contain large amounts of DNA and are often packaged into heterochromatin. In most eukaryotes, the centromere's DNA sequence consists of large arrays of repetitive DNA (e.g. satellite DNA) where the sequence within individual repeat elements is similar but not identical. In humans, the primary centromeric repeat unit is called α-satellite (or alphoid), although a number of other sequence types are found in this region. Centromere satellites are hypothesized to evolve by a process called layered expansion. They evolve rapidly between species, and analyses in wild mice show that satellite copy number and heterogeneity relates to population origins and subspecies. Additionally, satellite sequences may be affected by inbreeding.",
"title": "Sequence"
},
{
"paragraph_id": 22,
"text": "Point centromeres are smaller and more compact. DNA sequences are both necessary and sufficient to specify centromere identity and function in organisms with point centromeres. In budding yeasts, the centromere region is relatively small (about 125 bp DNA) and contains two highly conserved DNA sequences that serve as binding sites for essential kinetochore proteins.",
"title": "Sequence"
},
{
"paragraph_id": 23,
"text": "Since centromeric DNA sequence is not the key determinant of centromeric identity in metazoans, it is thought that epigenetic inheritance plays a major role in specifying the centromere. The daughter chromosomes will assemble centromeres in the same place as the parent chromosome, independent of sequence. It has been proposed that histone H3 variant CENP-A (Centromere Protein A) is the epigenetic mark of the centromere. The question arises whether there must be still some original way in which the centromere is specified, even if it is subsequently propagated epigenetically. If the centromere is inherited epigenetically from one generation to the next, the problem is pushed back to the origin of the first metazoans.",
"title": "Inheritance"
},
{
"paragraph_id": 24,
"text": "On the other hand, thanks to comparisons of the centromeres in the X chromosomes, epigenetic and structural variations have been seen in these regions. In addition, a recent assembly of the human genome has detected a possible mechanism of how pericentromeric and centromeric structures evolve, through a layered expansion model for αSat sequences. This model proposes that different αSat sequence repeats emerge periodically and expand within an active vector, displacing old sequences, and becoming the site of kinetochore assembly. The αSat can originate from the same, or from different vectors. As this process is repeated over time, the layers that flank the active centromere shrink and deteriorate. This process raises questions about the relationship between this dynamic evolutionary process and the position of the centromere.",
"title": "Inheritance"
},
{
"paragraph_id": 25,
"text": "The centromeric DNA is normally in a heterochromatin state, which is essential for the recruitment of the cohesin complex that mediates sister chromatid cohesion after DNA replication as well as coordinating sister chromatid separation during anaphase. In this chromatin, the normal histone H3 is replaced with a centromere-specific variant, CENP-A in humans. The presence of CENP-A is believed to be important for the assembly of the kinetochore on the centromere. CENP-C has been shown to localise almost exclusively to these regions of CENP-A associated chromatin. In human cells, the histones are found to be most enriched for H4K20me3 and H3K9me3 which are known heterochromatic modifications. In Drosophila, Islands of retroelements are major components of the centromeres.",
"title": "Structure"
},
{
"paragraph_id": 26,
"text": "In the yeast Schizosaccharomyces pombe (and probably in other eukaryotes), the formation of centromeric heterochromatin is connected to RNAi. In nematodes such as Caenorhabditis elegans, some plants, and the insect orders Lepidoptera and Hemiptera, chromosomes are \"holocentric\", indicating that there is not a primary site of microtubule attachments or a primary constriction, and a \"diffuse\" kinetochore assembles along the entire length of the chromosome.",
"title": "Structure"
},
{
"paragraph_id": 27,
"text": "In rare cases, neocentromeres can form at new sites on a chromosome as a result of a repositioning of the centromere. This phenomenon is most well known from human clinical studies and there are currently over 90 known human neocentromeres identified on 20 different chromosomes. The formation of a neocentromere must be coupled with the inactivation of the previous centromere, since chromosomes with two functional centromeres (Dicentric chromosome) will result in chromosome breakage during mitosis. In some unusual cases human neocentromeres have been observed to form spontaneously on fragmented chromosomes. Some of these new positions were originally euchromatic and lack alpha satellite DNA altogether. Neocentromeres lack the repetitive structure seen in normal centromeres which suggest that centromere formation is mainly controlled epigenetically. Over time a neocentromere can accumulate repetitive elements and mature into what is known as an evolutionary new centromere. There are several well known examples in primate chromosomes where the centromere position is different from the human centromere of the same chromosome and is thought to be evolutionary new centromeres. Centromere repositioning and the formation of evolutionary new centromeres has been suggested to be a mechanism of speciation.",
"title": "Centromeric aberrations"
},
{
"paragraph_id": 28,
"text": "Centromere proteins are also the autoantigenic target for some anti-nuclear antibodies, such as anti-centromere antibodies.",
"title": "Centromeric aberrations"
},
{
"paragraph_id": 29,
"text": "It has been known that centromere misregulation contributes to mis-segregation of chromosomes, which is strongly related to cancer and miscarriage. Notably, overexpression of many centromere genes have been linked to cancer malignant phenotypes. Overexpression of these centromere genes can increase genomic instability in cancers. Elevated genomic instability on one hand relates to malignant phenotypes; on the other hand, it makes the tumor cells more vulnerable to specific adjuvant therapies such as certain chemotherapies and radiotherapy. Instability of centromere repetitive DNA was recently shown in cancer and aging.",
"title": "Dysfunction and disease"
},
{
"paragraph_id": 30,
"text": "When DNA breaks occur at centromeres in the G1 phase of the cell cycle, the cells are able to recruit the homologous recombinational repair machinery to the damaged site, even in the absence of a sister chromatid. It appears that homologous recombinational repair can occur at centromeric breaks throughout the cell cycle in order to prevent the activation of inaccurate mutagenic DNA repair pathways and to preserve centromeric integrity.",
"title": "Repair of centromeric DNA"
},
{
"paragraph_id": 31,
"text": "The word centromere (/ˈsɛntrəˌmɪər/) uses combining forms of centro- and -mere, yielding \"central part\", describing the centromere's location at the center of the chromosome.",
"title": "Etymology and pronunciation"
}
] | The centromere links a pair of sister chromatids together during cell division. This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore. The physical role of the centromere is to act as the site of assembly of the kinetochores – a highly complex multiprotein structure that is responsible for the actual events of chromosome segregation – i.e. binding microtubules and signaling to the cell cycle machinery when all chromosomes have adopted correct attachments to the spindle, so that it is safe for cell division to proceed to completion and for cells to enter anaphase. There are, broadly speaking, two types of centromeres. "Point centromeres" bind to specific proteins that recognize particular DNA sequences with high efficiency. Any piece of DNA with the point centromere DNA sequence on it will typically form a centromere if present in the appropriate species. The best characterized point centromeres are those of the budding yeast, Saccharomyces cerevisiae. "Regional centromeres" is the term coined to describe most centromeres, which typically form on regions of preferred DNA sequence, but which can form on other DNA sequences as well. The signal for formation of a regional centromere appears to be epigenetic. Most organisms, ranging from the fission yeast Schizosaccharomyces pombe to humans, have regional centromeres. Regarding mitotic chromosome structure, centromeres represent a constricted region of the chromosome where two identical sister chromatids are most closely in contact. When cells enter mitosis, the sister chromatids are linked along their length by the action of the cohesin complex. It is now believed that this complex is mostly released from chromosome arms during prophase, so that by the time the chromosomes line up at the mid-plane of the mitotic spindle, the last place where they are linked with one another is in the chromatin in and around the centromere. | 2002-02-25T15:43:11Z | 2023-10-30T01:29:34Z | [
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7,287 | Castello | Castello may refer to: | [
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] | Castello may refer to: | 2002-02-25T15:43:11Z | 2023-11-18T18:26:31Z | [
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7,288 | Common preference | Common preference is an everyone wins situation in a number of places: | [
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] | Common preference is an everyone wins situation in a number of places: Zero-sum game#Non-zero-sum
Taking Children Seriously
Win-win situation | 2019-12-28T03:25:44Z | [
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|
7,291 | CuteFTP | CuteFTP is a series of FTP (file transfer protocol) client applications distributed and supported since 1996 by GlobalSCAPE, who later bought the rights to the software. Both a Windows-based or Mac-based interface were made for both home and professional use.
CuteFTP is used to transfer files between computers and File Transfer Protocol (FTP) servers to publish web pages, download digital images, music, multi-media files and software, and transfer files of any size or type between home and office. Since 1999, CuteFTP Pro and CuteFTP Mac Pro have also been available alongside CuteFTP Home with free trial periods.
It was originally developed by Alex Kunadze, a Russian programmer. | [
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"title": ""
},
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] | CuteFTP is a series of FTP client applications distributed and supported since 1996 by GlobalSCAPE, who later bought the rights to the software. Both a Windows-based or Mac-based interface were made for both home and professional use. CuteFTP is used to transfer files between computers and File Transfer Protocol (FTP) servers to publish web pages, download digital images, music, multi-media files and software, and transfer files of any size or type between home and office. Since 1999, CuteFTP Pro and CuteFTP Mac Pro have also been available alongside CuteFTP Home with free trial periods. It was originally developed by Alex Kunadze, a Russian programmer. | 2001-12-01T03:00:57Z | 2023-08-20T20:10:53Z | [
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7,293 | Commodore 64 | The Commodore 64, also known as the C64, is an 8-bit home computer introduced in January 1982 by Commodore International (first shown at the Consumer Electronics Show, January 7–10, 1982, in Las Vegas). It has been listed in the Guinness World Records as the highest-selling single computer model of all time, with independent estimates placing the number sold between 12.5 and 17 million units. Volume production started in early 1982, marketing in August for US$595 (equivalent to $1,800 in 2022). Preceded by the VIC-20 and Commodore PET, the C64 took its name from its 64 kilobytes (65,536 bytes) of RAM. With support for multicolor sprites and a custom chip for waveform generation, the C64 could create superior visuals and audio compared to systems without such custom hardware.
The C64 dominated the low-end computer market (except in the UK and Japan, lasting only about six months in Japan) for most of the later years of the 1980s. For a substantial period (1983–1986), the C64 had between 30% and 40% share of the US market and two million units sold per year, outselling IBM PC compatibles, Apple computers, and the Atari 8-bit family of computers. Sam Tramiel, a later Atari president and the son of Commodore's founder, said in a 1989 interview, "When I was at Commodore we were building 400,000 C64s a month for a couple of years." In the UK market, the C64 faced competition from the BBC Micro, the ZX Spectrum, and later the Amstrad CPC 464. but the C64 was still the second-most-popular computer in the UK after the ZX Spectrum. The Commodore 64 failed to make any impact in Japan, as their market was dominated by Japanese computers, such as the NEC PC-8801, Sharp X1, Fujitsu FM-7, and MSX.
Part of the Commodore 64's success was its sale in regular retail stores instead of only electronics or computer hobbyist specialty stores. Commodore produced many of its parts in-house to control costs, including custom integrated circuit chips from MOS Technology. In the United States, it has been compared to the Ford Model T automobile for its role in bringing a new technology to middle-class households via creative and affordable mass-production. Approximately 10,000 commercial software titles have been made for the Commodore 64, including development tools, office productivity applications, and video games. C64 emulators allow anyone with a modern computer, or a compatible video game console, to run these programs today. The C64 is also credited with popularizing the computer demoscene and is still used today by some computer hobbyists. In 2011, 17 years after it was taken off the market, research showed that brand recognition for the model was still at 87%.
In January 1981, MOS Technology, Inc., Commodore's integrated circuit design subsidiary, initiated a project to design the graphic and audio chips for a next-generation video game console. Design work for the chips, named MOS Technology VIC-II (Video Integrated Circuit for graphics) and MOS Technology SID (Sound Interface Device for audio), was completed in November 1981. Commodore then began a game console project that would use the new chips—called the Ultimax or the MAX Machine, engineered by Yash Terakura from Commodore Japan. This project was eventually cancelled after just a few machines were manufactured for the Japanese market. At the same time, Robert "Bob" Russell (system programmer and architect on the VIC-20) and Robert "Bob" Yannes (engineer of the SID) were critical of the current product line-up at Commodore, which was a continuation of the Commodore PET line aimed at business users. With the support of Al Charpentier (engineer of the VIC-II) and Charles Winterble (manager of MOS Technology), they proposed to Commodore CEO Jack Tramiel a low-cost sequel to the VIC-20. Tramiel dictated that the machine should have 64 KB of random-access memory (RAM). Although 64-Kbit dynamic random-access memory (DRAM) chips cost over US$100 (equivalent to $272.09 in 2022) at the time, he knew that 64K DRAM prices were falling and would drop to an acceptable level before full production was reached. The team was able to quickly design the computer because, unlike most other home-computer companies, Commodore had its own semiconductor fab to produce test chips; because the fab was not running at full capacity, development costs were part of existing corporate overhead. The chips were complete by November, by which time Charpentier, Winterble, and Tramiel had decided to proceed with the new computer; the latter set a final deadline for the first weekend of January, to coincide with the 1982 Consumer Electronics Show (CES).
The product was code named the VIC-40 as the successor to the popular VIC-20. The team that constructed it consisted of Yash Terakura, Shiraz Shivji, Bob Russell, Bob Yannes, and David A. Ziembicki. The design, prototypes, and some sample software were finished in time for the show, after the team had worked tirelessly over both Thanksgiving and Christmas weekends. The machine used the same case, same-sized motherboard, and same Commodore BASIC 2.0 in ROM as the VIC-20. BASIC also served as the user interface shell and was available immediately on startup at the READY prompt. When the product was to be presented, the VIC-40 product was renamed C64. The C64 made an impressive debut at the January 1982 Consumer Electronics Show, as recalled by Production Engineer David A. Ziembicki: "All we saw at our booth were Atari people with their mouths dropping open, saying, 'How can you do that for $595?'" The answer was vertical integration; due to Commodore's ownership of MOS Technology's semiconductor fabrication facilities, each C64 had an estimated production cost of US$135 (equivalent to $350 in 2022).
In July 1983, BYTE magazine stated that "the 64 retails for $595. At that price it promises to be one of the hottest contenders in the under-$1,000 personal computer market." It described the SID as "a true music synthesizer ... the quality of the sound has to be heard to be believed", while criticizing the use of Commodore BASIC 2.0, the floppy disk performance which is "even slower than the Atari 810 drive", and Commodore's quality control. BYTE gave more details, saying the C64 had "inadequate Commodore BASIC 2.0. An 8K-byte interpreted BASIC" which they assumed was because "Obviously, Commodore feels that most home users will be running prepackaged software - there is no provision for using graphics (or sound as mentioned above) from within a BASIC program except by means of POKE commands." This was one of very few warnings about C64 BASIC published in any computer magazines. Creative Computing said in December 1984 that the C64 was "the overwhelming winner" in the category of home computers under $500. Despite criticizing its "slow disk drive, only two cursor directional keys, zero manufacturer support, non-standard interfaces, etc.", the magazine said that at the C64's price of less than $200 "you can't get another system with the same features: 64K, color, sprite graphics, and barrels of available software". The Tandy Color Computer was the runner up. The Apple II was the winner in the category of home computer over $500, which was the category the Commodore 64 was in when it was first released at the price of $595.
Commodore had a reputation for announcing products that never appeared, so sought to quickly ship the C64. Production began in the spring of 1982, and volume shipments began in August. The C64 faced a wide range of competing home computers, but with a lower price and more flexible hardware, it quickly outsold many of its competitors.
In the United States, the greatest competitors were the Atari 8-bit 400, the Atari 800, and the Apple II. The Atari 400 and 800 had been designed to accommodate previously stringent FCC emissions requirements and so were expensive to manufacture. Though similar in specifications, the C64 and Apple II represented differing design philosophies; as an open architecture system, upgrade capability for the Apple II was granted by internal expansion slots, whereas the C64's comparatively closed architecture had only a single external ROM cartridge port for bus expansion. However, the Apple II used its expansion slots for interfacing with common peripherals like disk drives, printers, and modems; the C64 had a variety of ports integrated into its motherboard, which were used for these purposes, usually leaving the cartridge port free. Commodore's was not a completely closed system, however, the company had published detailed specifications for most of their models since the Commodore PET and VIC-20 days, and the C64 was no exception. C64 sales were nonetheless relatively slow due to a lack of software, reliability issues with early production models, particularly high failure rates of the PLA chip, which used a new production process, and a shortage of 1541 disk drives, which also suffered rather severe reliability issues. During 1983, however, a trickle of software turned into a flood and sales began rapidly climbing.
Commodore sold the C64 not only through its network of authorized dealers but also through department stores, discount stores, toy stores and college bookstores. The C64 had a built-in RF modulator and thus could be plugged into any television set. This allowed it (like its predecessor, the VIC-20) to compete directly against video game consoles such as the Atari 2600. Like the Apple IIe, the C64 could also output a composite video signal, avoiding the RF modulator altogether. This allowed the C64 to be plugged into a specialized monitor for a sharper picture. Unlike the IIe, the C64's NTSC output capability also included separate luminance/chroma signal output equivalent to (and electrically compatible with) S-Video, for connection to the Commodore 1702 monitor, providing even better video quality than a composite signal.
Aggressive pricing of the C64 is considered to have been a major catalyst in the video game crash of 1983. In January 1983, Commodore offered a $100 rebate in the United States on the purchase of a C64 to anyone that traded in another video game console or computer. To take advantage of this rebate, some mail-order dealers and retailers offered a Timex Sinclair 1000 (TS1000) for as little as $10 with the purchase of a C64. This deal meant that the consumer could send the TS1000 to Commodore, collect the rebate, and pocket the difference; Timex Corporation departed the computer market within a year. Commodore's tactics soon led to a price war with the major home computer manufacturers. The success of the VIC-20 and C64 contributed significantly to the exit from the field of Texas Instruments and other smaller competitors.
The price war with Texas Instruments was seen as a personal battle for Commodore president Jack Tramiel. Commodore dropped the C64's list price by $200 within two months of its release. In June 1983 the company lowered the price to $300 (equivalent to $900 in 2022), and some stores sold the computer for $199. At one point, the company was selling as many C64s as all computers sold by the rest of the industry combined. Meanwhile, TI lost money by selling the TI-99/4A for $99. TI's subsequent demise in the home computer industry in October 1983 was seen as revenge for TI's tactics in the electronic calculator market in the mid-1970s, when Commodore was almost bankrupted by TI.
All four machines had similar memory configurations which were standard in 1982–83: 48 KB for the Apple II+ (upgraded within months of C64's release to 64 KB with the Apple IIe) and 48 KB for the Atari 800. At upwards of $1,200, the Apple II was about twice as expensive, while the Atari 800 cost $899. One key to the C64's success was Commodore's aggressive marketing tactics, and they were quick to exploit the relative price/performance divisions between its competitors with a series of television commercials after the C64's launch in late 1982. The company also published detailed documentation to help developers, while Atari initially kept technical information secret.
Although many early C64 games were inferior Atari 8-bit ports, by late 1983, the growing installed base caused developers to create new software with better graphics and sound. It was the only non-discontinued, widely available home computer by then, with more than 500,000 sold during the Christmas season; because of production problems in Atari's supply chain, by the start of 1984 "the Commodore 64 largely has [the low-end] market to itself right now", The Washington Post reported.
Some of the graphics modes on the 64 are really strange, and they have no analogs to the Atari or Apple, like the ability to change color of the character basis across the screen. That gave us a lot of color capability that had not been exploited.
With sales booming and the early reliability issues with the hardware addressed, software for the C64 began to grow in size and ambition during 1984. This growth shifted to the primary focus of most US game developers. The two holdouts were Sierra, who largely skipped over the C64 in favor of Apple and PC-compatible machines, and Broderbund, who were heavily invested in educational software and developed primarily around the Apple II. In the North American market, the disk format had become nearly universal while cassette and cartridge-based software all but disappeared. So most US-developed games by this point grew large enough to require multi-loading.
At a mid-1984 conference of game developers and experts at Origins Game Fair, Dan Bunten, Sid Meier, and a representative of Avalon Hill said that they were developing games for the C64 first as the most promising market. By 1985, games were an estimated 60 to 70% of Commodore 64 software. Computer Gaming World stated in January 1985 that companies such as Epyx that survived the video game crash did so because they "jumped on the Commodore bandwagon early". Over 35% of SSI's 1986 sales were for the C64, ten points higher than for the Apple II. The C64 was even more important for other companies, which often found that more than half the sales for a title ported to six platforms came from the C64 version. That year, Computer Gaming World published a survey of ten game publishers that found that they planned to release forty-three Commodore 64 games that year, compared to nineteen for Atari and forty-eight for Apple II, and Alan Miller stated that Accolade developed first for the C64 because "it will sell the most on that system".
In Europe, the primary competitors to the C64 were British-built computers: the Sinclair ZX Spectrum, the BBC Micro, and the Amstrad CPC 464. In the UK, the 48K Spectrum had not only been released a few months ahead of the C64's early 1983 debut, but it was also selling for £175, less than half the C64's £399 price. The Spectrum quickly became the market leader and Commodore had an uphill struggle against it in the marketplace. The C64 did however go on to rival the Spectrum in popularity in the latter half of the 1980s. Adjusted to the population size, the popularity of Commodore 64 was the highest in Finland at roughly 3 units per 100 inhabitants, where it was subsequently marketed as "the Computer of the Republic".
Rumors spread in late 1983 that Commodore would discontinue the C64. By early 1985 the C64's price was $149; with an estimated production cost of $35–50, its profitability was still within the industry-standard markup of two to three times. Commodore sold about one million C64s in 1985 and a total of 3.5 million by mid-1986. Although the company reportedly attempted to discontinue the C64 more than once in favor of more expensive computers such as the Commodore 128, demand remained strong. In 1986, Commodore introduced the 64C, a redesigned 64, which Compute! saw as evidence that—contrary to C64 owners' fears that the company would abandon them in favor of the Amiga and 128—"the 64 refuses to die". Its introduction also meant that Commodore raised the price of the C64 for the first time, which the magazine cited as the end of the home-computer price war. Software sales also remained strong; MicroProse, for example, in 1987 cited the Commodore and IBM PC markets as its top priorities.
By 1988, PC compatibles were the largest and fastest-growing home and entertainment software markets, displacing former leader Commodore. Commodore 64 software sales were almost unchanged in the third quarter of 1988 year over year while the overall market grew 42%, but the company was still selling 1 to 1.5 million units worldwide each year of what Computer Chronicles that year called "the Model T of personal computers". Epyx CEO Dave Morse cautioned that "there are no new 64 buyers, or very few. It's a consistent group that's not growing... it's going to shrink as part of our business." One computer gaming executive stated that the Nintendo Entertainment System's enormous popularity – seven million sold in 1988, almost as many as the number of C64s sold in its first five years – had stopped the C64's growth. Trip Hawkins reinforced that sentiment, stating that Nintendo was "the last hurrah of the 8-bit world".
SSI exited the Commodore 64 market in 1991, after most competitors. Ultima VI, released in 1991, was the last major C64 game release from a North American developer, and The Simpsons, published by Ultra Games, was the last arcade conversion. The latter was a somewhat uncommon example of a US-developed arcade port as after the early years of the C64, most arcade conversions were produced by UK developers and converted to NTSC and disk format for the US market, American developers instead focusing on more computer-centered game genres such as RPGs and simulations. In the European market, disk software was rarer and cassettes were the most common distribution method; this led to a higher prevalence of arcade titles and smaller, lower-budget games that could fit entirely in the computer's memory without requiring multiloads. European programmers also tended to exploit advanced features of the C64's hardware more than their US counterparts.
In the United States, demand for 8-bit computers all but ceased as the 1990s began and PC compatibles completely dominated the computer market. However, the C64 continued to be popular in the UK and other European countries. The machine's eventual demise was not due to lack of demand or the cost of the C64 itself (still profitable at a retail price point between £44 and £50), but rather because of the cost of producing the disk drive. In March 1994, at CeBIT in Hanover, Germany, Commodore announced that the C64 would be finally discontinued in 1995, noting that the Commodore 1541 cost more than the C64 itself.
However, only one month later in April 1994, the company filed for bankruptcy. When Commodore went bankrupt, all production on their inventory, including the C64, was discontinued, thus ending the C64's 11 and a half year production. Claims of sales of 17, 22 and 30 million of C64 units sold worldwide have been made. Company sales records, however, indicate that the total number was about 12.5 million. Based on that figure, the Commodore 64 was still the third most popular computing platform into the 21st century until 2017 when the Raspberry Pi family replaced it. While 360,000 C64s were sold in 1982, about 1.3 million were sold in 1983, followed by a large spike in 1984 when 2.6 million were sold. After that, sales held steady at between 1.3 and 1.6 million a year for the remainder of the decade and then dropped off after 1989. North American sales peaked between 1983 and 1985 and gradually tapered off afterward, while European sales remained quite strong into the early 1990s.
In 1982, Commodore released the MAX Machine in Japan. It was called the Ultimax in the United States and VC-10 in Germany. The MAX was intended to be a game console with limited computing capability and was based on a cut-down version of the hardware family later used in the C64. The MAX was discontinued months after its introduction because of poor sales in Japan.
1983 saw Commodore attempt to compete with the Apple II's hold on the US education market with the Educator 64, essentially a C64 and "greenscale" monochrome monitor in a PET case. Schools preferred the all-in-one metal construction of the PET over the standard C64's separate components, which could be easily damaged, vandalized, or stolen. Schools did not prefer the Educator 64 to the wide range of software and hardware options the Apple IIe was able to offer, and it was produced in limited quantities.
Also in 1983, Commodore released the SX-64, a portable version of the C64. The SX-64 has the distinction of being the first commercial full-color portable computer. While earlier computers using this form factor only incorporate monochrome ("green screen") displays, the base SX-64 unit features a 5 in (130 mm) color cathode-ray tube (CRT) and one integrated 1541 floppy disk drive. Even though Commodore claimed in advertisements that it would have dual 1541 drives, when the SX-64 was released there was only one and the other became a floppy disk storage slot. Also, unlike most other C64s, the SX-64 does not have a datasette connector so an external cassette was not an option.
Two designers at Commodore, Fred Bowen and Bil Herd, were determined to rectify the problems of the Plus/4. They intended that the eventual successors to the C64—the Commodore 128 and 128D computers (1985)—were to build upon the C64, avoiding the Plus/4's flaws. The successors had many improvements such as a BASIC with graphics and sound commands (like almost all home computers not made by Commodore), 80-column display ability, and full CP/M compatibility. The decision to make the Commodore 128 plug compatible with the C64 was made quietly by Bowen and Herd, software and hardware designers respectively, without the knowledge or approval by the management in the post Jack Tramiel era. The designers were careful not to reveal their decision until the project was too far along to be challenged or changed and still make the impending Consumer Electronics Show (CES) in Las Vegas. Upon learning that the C128 was designed to be compatible with the C64, Commodore's marketing department independently announced that the C128 would be 100% compatible with the C64, thereby raising the bar for C64 support. In a case of malicious compliance, the 128 design was altered to include a separate "64 mode" using a complete C64 environment to try to ensure total compatibility.
The C64's designers intended the computer to have a new, wedge-shaped case within a year of release, but the change did not occur. In 1986, Commodore released the 64C computer, which is functionally identical to the original. The exterior design was remodeled in the sleeker style of the Commodore 128. The 64C uses new versions of the SID, VIC-II, and I/O chips being deployed. Models with the C64E board had the graphic symbols printed on the top of the keys, instead of the normal location on the front. The sound chip (SID) was changed to use the MOS 8580 chip, with the core voltage reduced from 12V to 9V. The most significant changes include different behavior in the filters and in the volume control, which result in some music/sound effects sounding differently than intended, and in digitally-sampled audio being almost inaudible, respectively (though both of these can mostly be corrected-for in software). The 64 KB RAM memory went from eight chips to two chips. BASIC and the KERNAL went from two separate chips into one 16 KB ROM chip. The PLA chip and some TTL chips were integrated into a DIL 64-pin chip. The "252535-01" PLA integrated the color RAM as well into the same chip. The smaller physical space made it impossible to put in some internal expansions like a floppy-speeder. In the United States, the 64C was often bundled with the third-party GEOS graphical user interface (GUI)-based operating system, as well as the software needed to access Quantum Link. The 1541 drive received a matching face-lift, resulting in the 1541C. Later, a smaller, sleeker 1541-II model was introduced, along with the 800 KB 3.5-inch microfloppy 1581.
In 1990, the C64 was repackaged in the form of a game console, called the C64 Games System (C64GS), with most external connectivity removed. A simple modification to the 64C's motherboard was made to allow cartridges to be inserted from above. A modified ROM replaced the BASIC interpreter with a boot screen to inform the user to insert a cartridge. Designed to compete with the Nintendo Entertainment System and Sega's Master System, it suffered from very low sales compared to its rivals. It was another commercial failure for Commodore, and it was never released outside Europe. The Commodore game system lacked a keyboard, so any software that required a keyboard could not be used.
In 1990, an advanced successor to the C64, the Commodore 65 (also known as the "C64DX"), was prototyped, but the project was canceled by Commodore's chairman Irving Gould in 1991. The C65's specifications were impressive for an 8-bit computer, bringing specs comparable to the 16-bit Apple IIGS. For example, it could display 256 colors on the screen, while OCS based Amigas could only display 64 in HalfBrite mode (32 colors and half-bright transformations). Although no specific reason was given for the C65's cancellation, it would have competed in the marketplace with Commodore's lower-end Amigas and the Commodore CDTV.
In 1982, the C64's graphics and sound capabilities were rivaled only by the Atari 8-bit family and appeared exceptional when compared with the widely publicized Atari VCS and Apple II. The C64 is often credited with starting the computer subculture known as the demoscene (see Commodore 64 demos). It is still being actively used in the demoscene, especially for music (its SID sound chip even being used in special sound cards for PCs, and the Elektron SidStation synthesizer). Even though other computers quickly caught up with it, the C64 remained a strong competitor to the later video game consoles Nintendo Entertainment System (NES) and Master System, thanks in part to its by-then established software base, especially outside North America, where it comprehensively outsold the NES.
Because of lower incomes and the domination of the ZX Spectrum in the UK, almost all British C64 software used cassette tapes. Few cassette C64 programs were released in the US after 1983 and, in North America, the diskette was the principal method of software distribution. The cartridge slot on the C64 was also mainly a feature used in the computer's first two years on the US market and became rapidly obsolete once the price and reliability of 1541 drives improved. A handful of PAL region games used bank switched cartridges to get around the 16 KB memory limit.
As is common for home computers of the early 1980s, the C64 comes with a BASIC interpreter, in ROM. KERNAL, I/O, and tape/disk drive operations are accessed via custom BASIC language commands. The disk drive has its own interfacing microprocessor and ROM (firmware) I/O routines, much like the earlier CBM/PET systems and the Atari 400 and Atari 800. This means that no memory space is dedicated to running a disk operating system, as was the case with earlier systems such as the Apple II and TRS-80.
Commodore BASIC 2.0 is used instead of the more advanced BASIC 4.0 from the PET series, since C64 users were not expected to need the disk-oriented enhancements of BASIC 4.0. The company did not expect many to buy a disk drive, and using BASIC 2.0 simplified VIC-20 owners' transition to the 64. "The choice of BASIC 2.0 instead of 4.0 was made with some soul-searching, not just at random. The typical user of a C64 is not expected to need the direct disk commands as much as other extensions, and the amount of memory to be committed to BASIC were to be limited. We chose to leave expansion space for color and sound extensions instead of the disk features. As a result, you will have to handle the disk in the more cumbersome manner of the 'old days'."
The version of Microsoft BASIC is not very comprehensive and does not include specific commands for sound or graphics manipulation, instead requiring users to use the "PEEK and POKE" commands to access the graphics and sound chip registers directly. To provide extended commands, including graphics and sound, Commodore produced two different cartridge-based extensions to BASIC 2.0: Simons' BASIC and Super Expander 64. Other languages available for the C64 include Pascal, C, Logo, Forth, and FORTRAN. Compilers for BASIC 2.0 such as Petspeed 2 (from Commodore), Blitz (from Jason Ranheim), and Turbo Lightning (from Ocean Software) were produced. Most commercial C64 software was written in assembly language, either cross-developed on a larger computer, or directly on the C64 using a machine code monitor or an assembler. This maximized speed and minimized memory use. Some games, particularly adventures, used high-level scripting languages and sometimes mixed BASIC and machine language.
Many third-party operating systems have been developed for the C64. As well as the original GEOS, two third-party GEOS-compatible systems have been written: Wheels and GEOS megapatch. Both of these require hardware upgrades to the original C64. Several other operating systems are or have been available, including WiNGS OS, the Unix-like LUnix, operated from a command-line, and the embedded systems OS Contiki, with full GUI. Other less well-known OSes include ACE, Asterix, DOS/65, and GeckOS. A version of CP/M was released, but this requires the addition of an external Z80 processor to the expansion bus. Furthermore, the Z80 processor is underclocked to be compatible with the C64's memory bus, so performance is poor compared to other CP/M implementations. C64 CP/M and C128 CP/M both suffer a lack of software; although most commercial CP/M software can run on these systems, software media is incompatible between platforms. The low usage of CP/M on Commodores means that software houses saw no need to invest in mastering versions for the Commodore disk format. The C64 CP/M cartridge is also not compatible with anything except the early 326298 motherboards.
During the 1980s, the Commodore 64 was used to run bulletin board systems using software packages such as Punter BBS, Bizarre 64, Blue Board, C-Net, Color 64, CMBBS, C-Base, DMBBS, Image BBS, EBBS, and The Deadlock Deluxe BBS Construction Kit, often with sysop-made modifications. These boards sometimes were used to distribute cracked software. As late as December 2013, there were 25 such Bulletin Board Systems in operation, reachable via the Telnet protocol. There were major commercial online services, such as Compunet (UK), CompuServe (US – later bought by America Online), The Source (US), and Minitel (France) among many others. These services usually required custom software which was often bundled with a modem and included free online time as they were billed by the minute. Quantum Link (or Q-Link) was a US and Canadian online service for Commodore 64 and 128 personal computers that operated from November 5, 1985, to November 1, 1994. It was operated by Quantum Computer Services of Vienna, Virginia, which in October 1991 changed its name to America Online and continued to operate its AOL service for the IBM PC compatible and Apple Macintosh. Q-Link was a modified version of the PlayNET system, which Control Video Corporation (CVC, later renamed Quantum Computer Services) licensed.
The first graphical character-based interactive environment is Club Caribe. First released as Habitat in 1988, Club Caribe was introduced by LucasArts for Q-Link customers on their Commodore 64 computers. Users could interact with one another, chat and exchange items. Although the game's open world was very basic, its use of online avatars and the combination of chat and graphics was revolutionary. Online graphics in the late 1980s were severely restricted by the need to support modem data transfer rates as low as 300 bits per second. Habitat's graphics were stored locally on floppy disk, eliminating the need for network transfer.
The C64 uses an 8-bit MOS Technology 6510 microprocessor that is almost identical to the 6502 but has three-state buses, a different pinout, slightly different clock signals and other minor changes for this application. It also has six I/O lines on otherwise-unused legs on the 40-pin IC package. These are used for two purposes in the C64: to bank-switch the machine's read-only memory (ROM) in and out of the processor's address space, and to operate the datasette tape recorder. The C64 has 64 KB of 8-bit-wide dynamic RAM, 1 KB of 4-bit-wide static color RAM for text mode, and 38 KB are available to built-in Commodore BASIC 2.0 on startup. There is 20 KB of ROM, made up of the BASIC interpreter, the KERNAL, and the character ROM. Because the processor can only address 64 KB at a time, the ROM was mapped into memory and only 38911 bytes of RAM (plus 4 KB between the ROMs) were available at startup. Most "breadbin" Commodore 64s used 4164 DRAM with eight chips totaling 64K of system RAM. Later models, featuring Assy 250466 and Assy 250469 motherboards, used 41464 DRAM (64K×4) chips which stored 32 KB per chip (so only two were required). Because 4164 DRAMs are 64K×1, eight chips are needed to make an entire byte; the computer will not function without all of them present. The first chip contains Bit 0 for the memory space, the second chip contains Bit 1, and so forth.
The C64 performs a RAM test on power-up and if a RAM error is detected, the amount of free BASIC memory will be lower than the normal 38,911. If the faulty chip is in lower memory, then an ?OUT OF MEMORY IN 0 error is displayed rather than the usual BASIC startup banner.
The C64 uses a complicated memory-banking scheme; the normal power-on default is the BASIC ROM mapped in at $A000-$BFFF, and the screen editor (KERNAL) ROM at $E000–$FFFF. RAM under the system ROMs can be written to, but not read back, without swapping out the ROMs. Memory location $01 contains a register with control bits for enabling or disabling the system ROMs and the I/O area at $D000. If the KERNAL ROM is swapped out, BASIC will be removed at the same time. BASIC is not active without the KERNAL; BASIC often calls KERNAL routines, and part of the ROM code for BASIC is in the KERNAL ROM.
The character ROM is normally invisible to the CPU. The character ROM may be mapped into $D000–$DFFF, where it is then visible to the CPU. Because doing so necessitates swapping out the I/O registers, interrupts must first be disabled. By removing I/O from the memory map, $D000–$DFFF becomes free RAM.
C64 cartridges map into assigned ranges in the CPU's address space. The most common cartridge auto-starting requires a string at $8000 which contains "CBM80" followed by the address where program execution begins. A few C64 cartridges released in 1982 use Ultimax mode (or MAX mode), a leftover feature of the unsuccessful MAX Machine. These cartridges map into $F000 and displace the KERNAL ROM. If Ultimax mode is used, the programmer will have to provide code for handling system interrupts. The cartridge port has 16 address lines, which grants access to the computer's entire address space if needed. Disk and tape software normally load at the start of BASIC memory ($0801), and use a small BASIC stub (such as 10 SYS(2064)) to jump to the start of the program. Although no Commodore 8-bit machine except the C128 can automatically boot from a floppy disk, some software intentionally overwrites certain BASIC vectors in the process of loading so execution begins automatically (instead of requiring the user to type RUN at the BASIC prompt after loading).
About 300 cartridges were released for the C64, primarily during the machine's first 2+1⁄2 years on the market, after which most software outgrew the 16 KB cartridge limit. Larger software companies, such as Ocean Software, began releasing games on bank-switched cartridges to overcome the 16 KB cartridge limit during the C64's final years.
Commodore did not include a reset button on its computers until the CBM-II line, but third-party cartridges had a reset button. A soft reset can be triggered by jumping to the CPU reset routine at $FCE2 (64738). A few programs use this as an exit feature, although it does not clear memory.
The KERNAL ROM underwent three revisions, mainly designed to fix bugs. The initial version is only found on 326298 motherboards (used in the first production models), and cannot detect whether an NTSC or PAL VIC-II is present. The second revision is found on all C64s made from late 1982 through 1985. The final KERNAL ROM revision was introduced on the 250466 motherboard (late breadbin models with 41464 RAM), and is found in all C64Cs. The 6510 CPU is clocked at 1.023 MHz (NTSC) and 0.985 MHz (PAL), lower than some competing systems; the Atari 800, for example, is clocked at 1.79 MHz). Performance can be boosted slightly by disabling the VIC-II's video output via a register write. This feature is often used by tape and disk fast loaders and the KERNAL cassette routine to keep a standard CPU cycle timing not modified by the VIC-II's sharing of the bus.
The restore key is gated directly to the CPU's NMI line, and will generate an NMI if pressed. The KERNAL handler for the NMI checks if run/stop is also pressed; if not, it ignores the NMI and exits. Run/stop-restore is normally a soft reset in BASIC which restores all I/O registers to their power-on default state, but does not clear memory or reset pointers; any BASIC programs in memory will be left untouched. Machine-language software usually disables run/stop-restore by remapping the NMI vector to a dummy RTI instruction. The NMI can also be used for an extra interrupt thread by programs, but risks a system lockup or other undesirable side effects if the restore key is accidentally pressed (which activates the NMI thread).
The C64 retained the VIC-20's DE-9 Atari joystick port and added another; any Atari-specification game controller can be used on a C64. The joysticks are read from the registers at $DC00 and $DC01, and most software is designed to use a joystick in port 2 for control rather than port 1; the upper bits of $DC00 are used by the keyboard, and an I/O conflict can result. Although it is possible to use Sega gamepads on a C64, it is not recommended; their slightly-different signal can damage the CIA chip. The SID chip's register $D419, used to control paddles, is an analog input. A handful of games, primarily released early in the computer's life cycle, can use paddles. In 1986, Commodore released two mice for the C64 and C128: the 1350 and 1351. The 1350 is a digital device read from the joystick registers, and can be used with any program supporting joystick input. The 1351 is an analog potentiometer-based mouse, read with the SID's analog-to-digital converter.
The VIC-II graphics chip features 16 colors, eight hardware sprites per scanline (enabling up to 112 sprites per PAL screen), scrolling capabilities, and two bitmap graphics modes.
The standard text mode features 40 columns, like most Commodore PET models; the built-in character encoding is not standard ASCII but PETSCII, an extended form of ASCII-1963. The KERNAL ROM sets the VIC-II to a dark-blue background on power-up, with a light-blue border and text. Unlike the PET and VIC-20, the C64 uses double-width text; some early VIC-IIs had poor video quality which resulted in a fuzzy picture. Most screenshots show borders around the screen, a feature of the VIC-II chip. By utilizing interrupts to reset hardware registers with precise timing, it was possible to place graphics within the borders and use the full screen.
The C64 has a resolution of 320×200 pixels, consisting of a 40×25 grid of 8×8 character blocks. It has 255 predefined character blocks, known as PETSCII. The character set can be copied into RAM and modified by a programmer.
There are two color modes: high resolution, with two colours available per character block (one foreground and one background), and multicolour (four colors per character block – three foreground and one background). In multicolor mode, attributes are shared between pixel pairs so the effective visible resolution is 160×200 pixels; only 16 KB of memory is available for the VIC-II video processor.
Since the C64 has a bitmapped screen, it is possible (but slow) to draw each pixel individually. Most programmers used techniques developed for earlier, non-bitmapped systems like the Commodore PET and TRS-80. A programmer redraws the character set, and the video processor fills the screen block by block from the top left corner to the bottom right corner. Two types of animation are used: character block animation and hardware sprites.
The user draws a series of characters of a person walking, possibly two in the middle of the block and another two walking in and out of the block. Then the user sequences them so the character walks into the block and out again. Drawing a series of these gets a person walking across the screen. By timing the redraw to occur when the television screen blanks out to restart drawing the screen, there will be no flicker. For this to happen, a user programs the VIC-II that it generates a raster interrupt when video flyback occurs. This technique is used in the Space Invaders arcade game.
Horizontal and vertical pixel scrolling of up to one character block is supported by two hardware scroll registers. Depending on timing, hardware scrolling affects the entire screen or selected lines of character blocks. On a non-emulated C64, scrolling is glass-like and blur-free.
A sprite is a character which moves over an area of the screen, draws over the background, and redraws it after it moves. This differs from character block animation, where the user flips character blocks. On the C64, the VIC-II video processor handles most sprite emulation; the programmer defines the sprite and where it goes.
The C64 has two types of sprites, respecting their color-mode limitations. Hi-res sprites have one color (one background and one foreground), and multi-color sprites have three (one background and three foreground). Color modes can be split or windowed on a single screen. Sprites can be doubled in size vertically and horizontally up to four times their size, but the pixel attributes are the same – the pixels become "fatter". There are eight sprites, and all eight can be shown in each horizontal line concurrently. Sprites can move with glassy smoothness in front of, and behind, screen characters and other sprites.
The hardware sprites of a C64 can be displayed on a bitmapped (high-resolution) screen or a text-mode screen in conjunction with fast and smooth character block animation. Software-emulated sprites on systems without support for hardware sprites, such as the Apple II and ZX Spectrum, required a bitmapped screen. Sprite-sprite and sprite-background collisions are detected in hardware, and the VIC-II can be programmed to trigger an interrupt accordingly.
The SID chip has three channels, each with its own ADSR envelope generator and filter capabilities. Ring modulation makes use of channel three to work with the other two channels. Bob Yannes developed the SID chip and, later, co-founded the synthesizer company Ensoniq. Composers and programmers of game music on the C64 include Rob Hubbard, Jeroen Tel, Tim Follin, David Whittaker, Chris Hülsbeck, Ben Daglish, Martin Galway, Kjell Nordbø and David Dunn. Due to the chip's three channels, chords are often played as arpeggios. It was also possible to continuously update the master volume with sampled data to enable the playback of 4-bit digitized audio. By 2008, it was possible to play four-channel 8-bit audio samples and two SID channels and still use filtering.
There are two versions of the SID chip: the 6581 and the 8580. The MOS Technology 6581 was used in the original ("breadbin") C64s, the early versions of the 64C, and the Commodore 128. The 6581 was replaced with the MOS Technology 8580 in 1987. Although the 6581 sound quality is a little crisper, it lacks the 8580's versatility; the 8580 can mix all available waveforms on each channel, but the 6581 can only mix waveforms in a channel in a limited fashion. The main difference between the 6581 and the 8580 is the supply voltage; the 6581 requires 12 volts, and the 8580 9 volts. A modification can be made to use the 6581 in a newer 64C board (which uses the 9-volt chip).
In 1986, the Sound Expander was released for the Commodore 64. It was a sound module with a Yamaha YM3526 chip capable of FM synthesis, primarily intended for professional music production.
Commodore made many changes to the C64's hardware, sometimes introducing compatibility issues. The computer's rapid development and Commodore and Jack Tramiel's focus on cost-cutting instead of product testing resulted in several defects which caused developers like Epyx to complain and required many revisions; Charpentier said that "not coming a little close to quality" was one of the company's mistakes.
Cost reduction was the reason for most of the revisions. Reducing manufacturing costs was vitally important to Commodore's survival during the price war and lean years of the 16-bit era. The C64's original (NMOS-based) motherboard went through two major redesigns and a number of revisions, exchanging positions of the VIC-II, SID and PLA chips. Much of the cost was initially eliminated by reducing the number of discrete components, such as diodes and resistors, which enabled a smaller printed circuit board. There were 16 C64 motherboard revisions to simplify production and reduce manufacturing costs. Some board revisions were exclusive to PAL regions. All C64 motherboards were manufactured in Hong Kong.
IC locations changed frequently with each motherboard revision, as did the presence (or lack) of the metal RF shield around the VIC-II; PAL boards often had aluminized cardboard instead of a metal shield. The SID and VIC-II are socketed on all boards, but the other ICs may be socketed or soldered. The first production C64s, made from 1982 to early 1983, are known as "silver label" models due to the case having a silver-colored "Commodore" logo. The power LED had a silver badge reading "64" around it. These machines have only a five-pin video cable, and cannot produce S-Video. Commodore introduced the familiar "rainbow badge" case in late 1982, but many machines produced into early 1983 also used silver-label cases until the existing stock was used up. The original 326298 board was replaced in spring 1983 by the 250407 motherboard, which had an eight-pin video connector and added S-Video support. This case design was used until the C64C appeared in 1986. All ICs switched to plastic shells, but the silver-label C64s (notably the VIC-II) had some ceramic ICs. The case is made from ABS plastic, which may become brown with time; this can be reversed with retrobright.
The VIC-II was manufactured with 5-micrometer NMOS technology, and was clocked at 17.73447 MHz (PAL) or 14.31818 MHz (NTSC). Internally, the clock was divided to generate the dot clock (about 8 MHz) and the two-phase system clocks (about 1 MHz; the pixel and system clock speeds differ slightly on NTSC and PAL machines). At such high clock rates the chip generated considerable heat, forcing MOS Technology to use a ceramic dual in-line package known as a CERDIP. The ceramic package was more expensive, but dissipated heat more effectively than plastic.
After a redesign in 1983, the VIC-II was encased in a plastic dual in-line package; this reduced costs substantially, but did not eliminate the heat problem. Without a ceramic package, the VIC-II required a heat sink. To avoid extra cost, the metal RF shielding doubled as the VIC's heat sink; not all units shipped with this type of shielding, however. Most C64s in Europe shipped with a cardboard RF shield coated with a layer of metal foil. The effectiveness of the cardboard was questionable; it acted instead as an insulator, blocking airflow and trapping heat generated by the SID, VIC, and PLA chips. The SID was originally manufactured using NMOS at 7 micrometers and, in some areas, 6 micrometers. The prototype SID and some early production models had a ceramic dual in-line package, but (unlike the VIC-II) are very rare; the SID was encased in plastic when production began in early 1982.
In 1986, Commodore released the last revision of the classic C64 motherboard. It was otherwise identical to the 1984 design, except for two 64-kilobit × 4-bit DRAM chips which replaced the original eight 64-kilobit × 1-bit ICs. After the release of the Commodore 64C, MOS Technology began to reconfigure the original C64's chipset to use HMOS technology. The main benefit of HMOS was that it required less voltage to drive the IC, generating less heat. This enhanced the reliability of the SID and VIC-II. The new chipset was renumbered 85xx to reflect the change to HMOS.
In 1987, Commodore released a 64C variant with a redesigned motherboard known as a "short board". The new board used the HMOS chipset, with a new 64-pin PLA chip. The "SuperPLA", as it was called, integrated discrete components and transistor–transistor logic (TTL) chips. In the last revision of the 64C motherboard, the 2114 4-bit-wide color RAM was integrated into the SuperPLA.
The C64 used an external power supply, a linear transformer with multiple taps differing from switch mode (presently used on PC power supplies). It was encased in epoxy resin gel, which discouraged tampering but increased the heat level during use. The design saved space in the computer's case, and allowed international versions to be more easily manufactured. The 1541-II and 1581 disk drives and third-party clones also have external power-supply "bricks", like most peripherals.
Commodore power supplies often failed sooner than expected. The computer reportedly had a 30-percent return rate in late 1983, compared to the 5–7 percent rate considered acceptable by the industry; Creative Computing reported four working C64s, out of seven. Malfunctioning power bricks were notorious for damaging the RAM chips. Due to their higher density and single supply (+5V), they had less tolerance for over-voltage. The usually-failing voltage regulator could be replaced by piggybacking a new regulator on the board and fitting a heat sink on top.
The original PSU on early-1982 and 1983 machines had a 5-pin connector which could accidentally be plugged into the computer's video output. Commodore later changed the design, omitting the resin gel to reduce costs. The following model, the Commodore 128, used a larger, improved power supply which included a fuse. The power supply for the Commodore REU was similar to that of the Commodore 128, providing an upgrade for customers purchasing the accessory.
Creative Micro Designs also produced a 2 MB REU for the C64 and C128, called the 1750 XL. The technology actually supported up to 16 MB, but 2 MB was the biggest one officially made. Expansions of up to 16 MB were also possible via the CMD SuperCPU.
The 9 volt AC is used to supply power via a charge pump to the SID sound generator chip, provide 6.8V via a rectifier to the cassette motor, a "0" pulse for every positive half wave to the time-of-day (TOD) input on the CIA chips, and 9 volts AC directly to the user-port. Thus, as a minimum, a 12 V square wave is required. But a 9 V sine wave is preferred.
Note that even if an I/O chip like the VIC-II only uses 64 positions in the memory address space, it will occupy 1,024 addresses because some address bits are left undecoded.
Vertical integration was the key to keeping Commodore 64 production costs low. At the introduction in 1982, the production cost was US$135 and the retail price US$595. In 1985, the retail price went down to US$149 (US$410 today) and the production costs were believed to be somewhere between US$35–50 (c. US$100–140 today). Commodore would not confirm this cost figure. Dougherty of the Berkeley Softworks estimated the costs of the Commodore 64 parts based on his experience at Mattel and Imagic.
To lower costs, TTL chips were replaced with less expensive custom chips and ways to increase the yields on the sound and graphics chips were found. The video chip 6567 had the ceramic package replaced with plastic but heat dissipation demanded a redesign of the chip and the development of a plastic package that can dissipate heat as well as ceramic.
Clones are computers which imitate C64 functions. In mid-2004, after an absence from the marketplace of more than 10 years, PC manufacturer Tulip Computers (owners of the Commodore brand since 1997) announced the C64 Direct-to-TV (C64DTV): a joystick-based TV game based on the C64, with 30 games in its ROM. Designed by Jeri Ellsworth, a self-taught computer designer who had designed the C-One C64 implementation, the C64DTV was similar to other mini-consoles based on the modestly-successful Atari 2600 and Intellivision. The C64DTV was advertised on QVC in the United States for the 2004 holiday season.
In 2015, a Commodore 64-compatible motherboard was produced by Individual Computers. Called the C64 Reloaded, it is a redesign of Commodore 64 motherboard revision 250466 with several new features. The motherboard is designed to be placed in an existing, empty C64 or C64C case. Produced in limited quantities, models of this Commodore 64 clone have machined or ZIF sockets in which custom C64 chips are placed. The board contains jumpers to accept revisions of the VIC-II and SID chips and the ability to switch between the PAL and NTSC video systems. It has several innovations, including selection (via the restore key) of KERNAL and character ROMs, built-in reset toggle on the power switch, and an S-Video socket to replace the original TV modulator. The motherboard is powered by a DC-to-DC converter which uses 12 V DC from a mains adapter, rather than the original (and failure-prone) Commodore 64 power-supply brick.
C64 enthusiasts were developing new hardware in 2008, including Ethernet cards, specially-adapted hard disks and flash card interfaces (sd2iec). A-SID, which gives the C-64 a wah-wah effect, was introduced in 2022.
The C64 brand was reused in 1998 for the Web.it Internet Computer, a low-powered, Internet-oriented, all-in-one x86 PC running MS-DOS and Windows 3.1. It uses an AMD Élan SC400 SoC with 16 MB of RAM, a 3.5-inch floppy disk drive, 56k modem and PC Card. Despite its Commodore 64 nameplate, the C64 Web.it looks different and is only directly compatible with the original via included emulation software. PC clones branded C64x sold by Commodore USA, a company licensing the Commodore trademark, began shipping in June 2011. The C64x's case resembles the original C64 computer, but – like the Web.it – it is based on x86 architecture and is not compatible with the Commodore 64.
Several Commodore 64 games were released on the Nintendo Wii's Virtual Console service in Europe and North America. They were not listed on the service in August 2013.
THEC64 Mini, an unofficial Linux-based console emulating the Commodore 64, was released in 2018 by UK-based Retro Games. The console is a decorative, half-scale Commodore 64 with two USB and one HDMI port, and a mini USB connection to power the system. The console's keyboard is non-functional; the system is controlled by an included THEC64 joystick or a separate USB keyboard. New software ROMs can be loaded into the console, which uses emulator x64 (as part of VICE) to run software and has a built-in graphical operating system.
The full-size THEC64 was released in 2019 in Europe and Australia, and was scheduled for release in November 2020 in North America. The console and built-in keyboard are built to scale with the original Commodore 64, including a functional keyboard. Enhancements include VIC-20 emulation, four USB ports, and an upgraded joystick. Neither product has a Commodore trademark. The Commodore key on the original keyboard is replaced with a THEC64 key; Retro Games can call neither product a C64, although the system ROMs are licensed from Cloanto Corporation. The consoles can be switched between carousel mode (to access the built-in game library) and classic mode, in which they operate similarly to a traditional Commodore 64. USB storage can be used to hold disk, cartridge and tape images for use with the machine.
Commodore 64 emulators include the open source VICE, Hoxs64, and CCS64. An iPhone app was also released with a compilation of C64 ports. | [
{
"paragraph_id": 0,
"text": "The Commodore 64, also known as the C64, is an 8-bit home computer introduced in January 1982 by Commodore International (first shown at the Consumer Electronics Show, January 7–10, 1982, in Las Vegas). It has been listed in the Guinness World Records as the highest-selling single computer model of all time, with independent estimates placing the number sold between 12.5 and 17 million units. Volume production started in early 1982, marketing in August for US$595 (equivalent to $1,800 in 2022). Preceded by the VIC-20 and Commodore PET, the C64 took its name from its 64 kilobytes (65,536 bytes) of RAM. With support for multicolor sprites and a custom chip for waveform generation, the C64 could create superior visuals and audio compared to systems without such custom hardware.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The C64 dominated the low-end computer market (except in the UK and Japan, lasting only about six months in Japan) for most of the later years of the 1980s. For a substantial period (1983–1986), the C64 had between 30% and 40% share of the US market and two million units sold per year, outselling IBM PC compatibles, Apple computers, and the Atari 8-bit family of computers. Sam Tramiel, a later Atari president and the son of Commodore's founder, said in a 1989 interview, \"When I was at Commodore we were building 400,000 C64s a month for a couple of years.\" In the UK market, the C64 faced competition from the BBC Micro, the ZX Spectrum, and later the Amstrad CPC 464. but the C64 was still the second-most-popular computer in the UK after the ZX Spectrum. The Commodore 64 failed to make any impact in Japan, as their market was dominated by Japanese computers, such as the NEC PC-8801, Sharp X1, Fujitsu FM-7, and MSX.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Part of the Commodore 64's success was its sale in regular retail stores instead of only electronics or computer hobbyist specialty stores. Commodore produced many of its parts in-house to control costs, including custom integrated circuit chips from MOS Technology. In the United States, it has been compared to the Ford Model T automobile for its role in bringing a new technology to middle-class households via creative and affordable mass-production. Approximately 10,000 commercial software titles have been made for the Commodore 64, including development tools, office productivity applications, and video games. C64 emulators allow anyone with a modern computer, or a compatible video game console, to run these programs today. The C64 is also credited with popularizing the computer demoscene and is still used today by some computer hobbyists. In 2011, 17 years after it was taken off the market, research showed that brand recognition for the model was still at 87%.",
"title": ""
},
{
"paragraph_id": 3,
"text": "In January 1981, MOS Technology, Inc., Commodore's integrated circuit design subsidiary, initiated a project to design the graphic and audio chips for a next-generation video game console. Design work for the chips, named MOS Technology VIC-II (Video Integrated Circuit for graphics) and MOS Technology SID (Sound Interface Device for audio), was completed in November 1981. Commodore then began a game console project that would use the new chips—called the Ultimax or the MAX Machine, engineered by Yash Terakura from Commodore Japan. This project was eventually cancelled after just a few machines were manufactured for the Japanese market. At the same time, Robert \"Bob\" Russell (system programmer and architect on the VIC-20) and Robert \"Bob\" Yannes (engineer of the SID) were critical of the current product line-up at Commodore, which was a continuation of the Commodore PET line aimed at business users. With the support of Al Charpentier (engineer of the VIC-II) and Charles Winterble (manager of MOS Technology), they proposed to Commodore CEO Jack Tramiel a low-cost sequel to the VIC-20. Tramiel dictated that the machine should have 64 KB of random-access memory (RAM). Although 64-Kbit dynamic random-access memory (DRAM) chips cost over US$100 (equivalent to $272.09 in 2022) at the time, he knew that 64K DRAM prices were falling and would drop to an acceptable level before full production was reached. The team was able to quickly design the computer because, unlike most other home-computer companies, Commodore had its own semiconductor fab to produce test chips; because the fab was not running at full capacity, development costs were part of existing corporate overhead. The chips were complete by November, by which time Charpentier, Winterble, and Tramiel had decided to proceed with the new computer; the latter set a final deadline for the first weekend of January, to coincide with the 1982 Consumer Electronics Show (CES).",
"title": "History"
},
{
"paragraph_id": 4,
"text": "The product was code named the VIC-40 as the successor to the popular VIC-20. The team that constructed it consisted of Yash Terakura, Shiraz Shivji, Bob Russell, Bob Yannes, and David A. Ziembicki. The design, prototypes, and some sample software were finished in time for the show, after the team had worked tirelessly over both Thanksgiving and Christmas weekends. The machine used the same case, same-sized motherboard, and same Commodore BASIC 2.0 in ROM as the VIC-20. BASIC also served as the user interface shell and was available immediately on startup at the READY prompt. When the product was to be presented, the VIC-40 product was renamed C64. The C64 made an impressive debut at the January 1982 Consumer Electronics Show, as recalled by Production Engineer David A. Ziembicki: \"All we saw at our booth were Atari people with their mouths dropping open, saying, 'How can you do that for $595?'\" The answer was vertical integration; due to Commodore's ownership of MOS Technology's semiconductor fabrication facilities, each C64 had an estimated production cost of US$135 (equivalent to $350 in 2022).",
"title": "History"
},
{
"paragraph_id": 5,
"text": "In July 1983, BYTE magazine stated that \"the 64 retails for $595. At that price it promises to be one of the hottest contenders in the under-$1,000 personal computer market.\" It described the SID as \"a true music synthesizer ... the quality of the sound has to be heard to be believed\", while criticizing the use of Commodore BASIC 2.0, the floppy disk performance which is \"even slower than the Atari 810 drive\", and Commodore's quality control. BYTE gave more details, saying the C64 had \"inadequate Commodore BASIC 2.0. An 8K-byte interpreted BASIC\" which they assumed was because \"Obviously, Commodore feels that most home users will be running prepackaged software - there is no provision for using graphics (or sound as mentioned above) from within a BASIC program except by means of POKE commands.\" This was one of very few warnings about C64 BASIC published in any computer magazines. Creative Computing said in December 1984 that the C64 was \"the overwhelming winner\" in the category of home computers under $500. Despite criticizing its \"slow disk drive, only two cursor directional keys, zero manufacturer support, non-standard interfaces, etc.\", the magazine said that at the C64's price of less than $200 \"you can't get another system with the same features: 64K, color, sprite graphics, and barrels of available software\". The Tandy Color Computer was the runner up. The Apple II was the winner in the category of home computer over $500, which was the category the Commodore 64 was in when it was first released at the price of $595.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Commodore had a reputation for announcing products that never appeared, so sought to quickly ship the C64. Production began in the spring of 1982, and volume shipments began in August. The C64 faced a wide range of competing home computers, but with a lower price and more flexible hardware, it quickly outsold many of its competitors.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "In the United States, the greatest competitors were the Atari 8-bit 400, the Atari 800, and the Apple II. The Atari 400 and 800 had been designed to accommodate previously stringent FCC emissions requirements and so were expensive to manufacture. Though similar in specifications, the C64 and Apple II represented differing design philosophies; as an open architecture system, upgrade capability for the Apple II was granted by internal expansion slots, whereas the C64's comparatively closed architecture had only a single external ROM cartridge port for bus expansion. However, the Apple II used its expansion slots for interfacing with common peripherals like disk drives, printers, and modems; the C64 had a variety of ports integrated into its motherboard, which were used for these purposes, usually leaving the cartridge port free. Commodore's was not a completely closed system, however, the company had published detailed specifications for most of their models since the Commodore PET and VIC-20 days, and the C64 was no exception. C64 sales were nonetheless relatively slow due to a lack of software, reliability issues with early production models, particularly high failure rates of the PLA chip, which used a new production process, and a shortage of 1541 disk drives, which also suffered rather severe reliability issues. During 1983, however, a trickle of software turned into a flood and sales began rapidly climbing.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "Commodore sold the C64 not only through its network of authorized dealers but also through department stores, discount stores, toy stores and college bookstores. The C64 had a built-in RF modulator and thus could be plugged into any television set. This allowed it (like its predecessor, the VIC-20) to compete directly against video game consoles such as the Atari 2600. Like the Apple IIe, the C64 could also output a composite video signal, avoiding the RF modulator altogether. This allowed the C64 to be plugged into a specialized monitor for a sharper picture. Unlike the IIe, the C64's NTSC output capability also included separate luminance/chroma signal output equivalent to (and electrically compatible with) S-Video, for connection to the Commodore 1702 monitor, providing even better video quality than a composite signal.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "Aggressive pricing of the C64 is considered to have been a major catalyst in the video game crash of 1983. In January 1983, Commodore offered a $100 rebate in the United States on the purchase of a C64 to anyone that traded in another video game console or computer. To take advantage of this rebate, some mail-order dealers and retailers offered a Timex Sinclair 1000 (TS1000) for as little as $10 with the purchase of a C64. This deal meant that the consumer could send the TS1000 to Commodore, collect the rebate, and pocket the difference; Timex Corporation departed the computer market within a year. Commodore's tactics soon led to a price war with the major home computer manufacturers. The success of the VIC-20 and C64 contributed significantly to the exit from the field of Texas Instruments and other smaller competitors.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "The price war with Texas Instruments was seen as a personal battle for Commodore president Jack Tramiel. Commodore dropped the C64's list price by $200 within two months of its release. In June 1983 the company lowered the price to $300 (equivalent to $900 in 2022), and some stores sold the computer for $199. At one point, the company was selling as many C64s as all computers sold by the rest of the industry combined. Meanwhile, TI lost money by selling the TI-99/4A for $99. TI's subsequent demise in the home computer industry in October 1983 was seen as revenge for TI's tactics in the electronic calculator market in the mid-1970s, when Commodore was almost bankrupted by TI.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "All four machines had similar memory configurations which were standard in 1982–83: 48 KB for the Apple II+ (upgraded within months of C64's release to 64 KB with the Apple IIe) and 48 KB for the Atari 800. At upwards of $1,200, the Apple II was about twice as expensive, while the Atari 800 cost $899. One key to the C64's success was Commodore's aggressive marketing tactics, and they were quick to exploit the relative price/performance divisions between its competitors with a series of television commercials after the C64's launch in late 1982. The company also published detailed documentation to help developers, while Atari initially kept technical information secret.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "Although many early C64 games were inferior Atari 8-bit ports, by late 1983, the growing installed base caused developers to create new software with better graphics and sound. It was the only non-discontinued, widely available home computer by then, with more than 500,000 sold during the Christmas season; because of production problems in Atari's supply chain, by the start of 1984 \"the Commodore 64 largely has [the low-end] market to itself right now\", The Washington Post reported.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "Some of the graphics modes on the 64 are really strange, and they have no analogs to the Atari or Apple, like the ability to change color of the character basis across the screen. That gave us a lot of color capability that had not been exploited.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "With sales booming and the early reliability issues with the hardware addressed, software for the C64 began to grow in size and ambition during 1984. This growth shifted to the primary focus of most US game developers. The two holdouts were Sierra, who largely skipped over the C64 in favor of Apple and PC-compatible machines, and Broderbund, who were heavily invested in educational software and developed primarily around the Apple II. In the North American market, the disk format had become nearly universal while cassette and cartridge-based software all but disappeared. So most US-developed games by this point grew large enough to require multi-loading.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "At a mid-1984 conference of game developers and experts at Origins Game Fair, Dan Bunten, Sid Meier, and a representative of Avalon Hill said that they were developing games for the C64 first as the most promising market. By 1985, games were an estimated 60 to 70% of Commodore 64 software. Computer Gaming World stated in January 1985 that companies such as Epyx that survived the video game crash did so because they \"jumped on the Commodore bandwagon early\". Over 35% of SSI's 1986 sales were for the C64, ten points higher than for the Apple II. The C64 was even more important for other companies, which often found that more than half the sales for a title ported to six platforms came from the C64 version. That year, Computer Gaming World published a survey of ten game publishers that found that they planned to release forty-three Commodore 64 games that year, compared to nineteen for Atari and forty-eight for Apple II, and Alan Miller stated that Accolade developed first for the C64 because \"it will sell the most on that system\".",
"title": "History"
},
{
"paragraph_id": 16,
"text": "In Europe, the primary competitors to the C64 were British-built computers: the Sinclair ZX Spectrum, the BBC Micro, and the Amstrad CPC 464. In the UK, the 48K Spectrum had not only been released a few months ahead of the C64's early 1983 debut, but it was also selling for £175, less than half the C64's £399 price. The Spectrum quickly became the market leader and Commodore had an uphill struggle against it in the marketplace. The C64 did however go on to rival the Spectrum in popularity in the latter half of the 1980s. Adjusted to the population size, the popularity of Commodore 64 was the highest in Finland at roughly 3 units per 100 inhabitants, where it was subsequently marketed as \"the Computer of the Republic\".",
"title": "History"
},
{
"paragraph_id": 17,
"text": "Rumors spread in late 1983 that Commodore would discontinue the C64. By early 1985 the C64's price was $149; with an estimated production cost of $35–50, its profitability was still within the industry-standard markup of two to three times. Commodore sold about one million C64s in 1985 and a total of 3.5 million by mid-1986. Although the company reportedly attempted to discontinue the C64 more than once in favor of more expensive computers such as the Commodore 128, demand remained strong. In 1986, Commodore introduced the 64C, a redesigned 64, which Compute! saw as evidence that—contrary to C64 owners' fears that the company would abandon them in favor of the Amiga and 128—\"the 64 refuses to die\". Its introduction also meant that Commodore raised the price of the C64 for the first time, which the magazine cited as the end of the home-computer price war. Software sales also remained strong; MicroProse, for example, in 1987 cited the Commodore and IBM PC markets as its top priorities.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "By 1988, PC compatibles were the largest and fastest-growing home and entertainment software markets, displacing former leader Commodore. Commodore 64 software sales were almost unchanged in the third quarter of 1988 year over year while the overall market grew 42%, but the company was still selling 1 to 1.5 million units worldwide each year of what Computer Chronicles that year called \"the Model T of personal computers\". Epyx CEO Dave Morse cautioned that \"there are no new 64 buyers, or very few. It's a consistent group that's not growing... it's going to shrink as part of our business.\" One computer gaming executive stated that the Nintendo Entertainment System's enormous popularity – seven million sold in 1988, almost as many as the number of C64s sold in its first five years – had stopped the C64's growth. Trip Hawkins reinforced that sentiment, stating that Nintendo was \"the last hurrah of the 8-bit world\".",
"title": "History"
},
{
"paragraph_id": 19,
"text": "SSI exited the Commodore 64 market in 1991, after most competitors. Ultima VI, released in 1991, was the last major C64 game release from a North American developer, and The Simpsons, published by Ultra Games, was the last arcade conversion. The latter was a somewhat uncommon example of a US-developed arcade port as after the early years of the C64, most arcade conversions were produced by UK developers and converted to NTSC and disk format for the US market, American developers instead focusing on more computer-centered game genres such as RPGs and simulations. In the European market, disk software was rarer and cassettes were the most common distribution method; this led to a higher prevalence of arcade titles and smaller, lower-budget games that could fit entirely in the computer's memory without requiring multiloads. European programmers also tended to exploit advanced features of the C64's hardware more than their US counterparts.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "In the United States, demand for 8-bit computers all but ceased as the 1990s began and PC compatibles completely dominated the computer market. However, the C64 continued to be popular in the UK and other European countries. The machine's eventual demise was not due to lack of demand or the cost of the C64 itself (still profitable at a retail price point between £44 and £50), but rather because of the cost of producing the disk drive. In March 1994, at CeBIT in Hanover, Germany, Commodore announced that the C64 would be finally discontinued in 1995, noting that the Commodore 1541 cost more than the C64 itself.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "However, only one month later in April 1994, the company filed for bankruptcy. When Commodore went bankrupt, all production on their inventory, including the C64, was discontinued, thus ending the C64's 11 and a half year production. Claims of sales of 17, 22 and 30 million of C64 units sold worldwide have been made. Company sales records, however, indicate that the total number was about 12.5 million. Based on that figure, the Commodore 64 was still the third most popular computing platform into the 21st century until 2017 when the Raspberry Pi family replaced it. While 360,000 C64s were sold in 1982, about 1.3 million were sold in 1983, followed by a large spike in 1984 when 2.6 million were sold. After that, sales held steady at between 1.3 and 1.6 million a year for the remainder of the decade and then dropped off after 1989. North American sales peaked between 1983 and 1985 and gradually tapered off afterward, while European sales remained quite strong into the early 1990s.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "In 1982, Commodore released the MAX Machine in Japan. It was called the Ultimax in the United States and VC-10 in Germany. The MAX was intended to be a game console with limited computing capability and was based on a cut-down version of the hardware family later used in the C64. The MAX was discontinued months after its introduction because of poor sales in Japan.",
"title": "C64 family"
},
{
"paragraph_id": 23,
"text": "1983 saw Commodore attempt to compete with the Apple II's hold on the US education market with the Educator 64, essentially a C64 and \"greenscale\" monochrome monitor in a PET case. Schools preferred the all-in-one metal construction of the PET over the standard C64's separate components, which could be easily damaged, vandalized, or stolen. Schools did not prefer the Educator 64 to the wide range of software and hardware options the Apple IIe was able to offer, and it was produced in limited quantities.",
"title": "C64 family"
},
{
"paragraph_id": 24,
"text": "Also in 1983, Commodore released the SX-64, a portable version of the C64. The SX-64 has the distinction of being the first commercial full-color portable computer. While earlier computers using this form factor only incorporate monochrome (\"green screen\") displays, the base SX-64 unit features a 5 in (130 mm) color cathode-ray tube (CRT) and one integrated 1541 floppy disk drive. Even though Commodore claimed in advertisements that it would have dual 1541 drives, when the SX-64 was released there was only one and the other became a floppy disk storage slot. Also, unlike most other C64s, the SX-64 does not have a datasette connector so an external cassette was not an option.",
"title": "C64 family"
},
{
"paragraph_id": 25,
"text": "Two designers at Commodore, Fred Bowen and Bil Herd, were determined to rectify the problems of the Plus/4. They intended that the eventual successors to the C64—the Commodore 128 and 128D computers (1985)—were to build upon the C64, avoiding the Plus/4's flaws. The successors had many improvements such as a BASIC with graphics and sound commands (like almost all home computers not made by Commodore), 80-column display ability, and full CP/M compatibility. The decision to make the Commodore 128 plug compatible with the C64 was made quietly by Bowen and Herd, software and hardware designers respectively, without the knowledge or approval by the management in the post Jack Tramiel era. The designers were careful not to reveal their decision until the project was too far along to be challenged or changed and still make the impending Consumer Electronics Show (CES) in Las Vegas. Upon learning that the C128 was designed to be compatible with the C64, Commodore's marketing department independently announced that the C128 would be 100% compatible with the C64, thereby raising the bar for C64 support. In a case of malicious compliance, the 128 design was altered to include a separate \"64 mode\" using a complete C64 environment to try to ensure total compatibility.",
"title": "C64 family"
},
{
"paragraph_id": 26,
"text": "The C64's designers intended the computer to have a new, wedge-shaped case within a year of release, but the change did not occur. In 1986, Commodore released the 64C computer, which is functionally identical to the original. The exterior design was remodeled in the sleeker style of the Commodore 128. The 64C uses new versions of the SID, VIC-II, and I/O chips being deployed. Models with the C64E board had the graphic symbols printed on the top of the keys, instead of the normal location on the front. The sound chip (SID) was changed to use the MOS 8580 chip, with the core voltage reduced from 12V to 9V. The most significant changes include different behavior in the filters and in the volume control, which result in some music/sound effects sounding differently than intended, and in digitally-sampled audio being almost inaudible, respectively (though both of these can mostly be corrected-for in software). The 64 KB RAM memory went from eight chips to two chips. BASIC and the KERNAL went from two separate chips into one 16 KB ROM chip. The PLA chip and some TTL chips were integrated into a DIL 64-pin chip. The \"252535-01\" PLA integrated the color RAM as well into the same chip. The smaller physical space made it impossible to put in some internal expansions like a floppy-speeder. In the United States, the 64C was often bundled with the third-party GEOS graphical user interface (GUI)-based operating system, as well as the software needed to access Quantum Link. The 1541 drive received a matching face-lift, resulting in the 1541C. Later, a smaller, sleeker 1541-II model was introduced, along with the 800 KB 3.5-inch microfloppy 1581.",
"title": "C64 family"
},
{
"paragraph_id": 27,
"text": "In 1990, the C64 was repackaged in the form of a game console, called the C64 Games System (C64GS), with most external connectivity removed. A simple modification to the 64C's motherboard was made to allow cartridges to be inserted from above. A modified ROM replaced the BASIC interpreter with a boot screen to inform the user to insert a cartridge. Designed to compete with the Nintendo Entertainment System and Sega's Master System, it suffered from very low sales compared to its rivals. It was another commercial failure for Commodore, and it was never released outside Europe. The Commodore game system lacked a keyboard, so any software that required a keyboard could not be used.",
"title": "C64 family"
},
{
"paragraph_id": 28,
"text": "In 1990, an advanced successor to the C64, the Commodore 65 (also known as the \"C64DX\"), was prototyped, but the project was canceled by Commodore's chairman Irving Gould in 1991. The C65's specifications were impressive for an 8-bit computer, bringing specs comparable to the 16-bit Apple IIGS. For example, it could display 256 colors on the screen, while OCS based Amigas could only display 64 in HalfBrite mode (32 colors and half-bright transformations). Although no specific reason was given for the C65's cancellation, it would have competed in the marketplace with Commodore's lower-end Amigas and the Commodore CDTV.",
"title": "C64 family"
},
{
"paragraph_id": 29,
"text": "In 1982, the C64's graphics and sound capabilities were rivaled only by the Atari 8-bit family and appeared exceptional when compared with the widely publicized Atari VCS and Apple II. The C64 is often credited with starting the computer subculture known as the demoscene (see Commodore 64 demos). It is still being actively used in the demoscene, especially for music (its SID sound chip even being used in special sound cards for PCs, and the Elektron SidStation synthesizer). Even though other computers quickly caught up with it, the C64 remained a strong competitor to the later video game consoles Nintendo Entertainment System (NES) and Master System, thanks in part to its by-then established software base, especially outside North America, where it comprehensively outsold the NES.",
"title": "Software"
},
{
"paragraph_id": 30,
"text": "Because of lower incomes and the domination of the ZX Spectrum in the UK, almost all British C64 software used cassette tapes. Few cassette C64 programs were released in the US after 1983 and, in North America, the diskette was the principal method of software distribution. The cartridge slot on the C64 was also mainly a feature used in the computer's first two years on the US market and became rapidly obsolete once the price and reliability of 1541 drives improved. A handful of PAL region games used bank switched cartridges to get around the 16 KB memory limit.",
"title": "Software"
},
{
"paragraph_id": 31,
"text": "As is common for home computers of the early 1980s, the C64 comes with a BASIC interpreter, in ROM. KERNAL, I/O, and tape/disk drive operations are accessed via custom BASIC language commands. The disk drive has its own interfacing microprocessor and ROM (firmware) I/O routines, much like the earlier CBM/PET systems and the Atari 400 and Atari 800. This means that no memory space is dedicated to running a disk operating system, as was the case with earlier systems such as the Apple II and TRS-80.",
"title": "Software"
},
{
"paragraph_id": 32,
"text": "Commodore BASIC 2.0 is used instead of the more advanced BASIC 4.0 from the PET series, since C64 users were not expected to need the disk-oriented enhancements of BASIC 4.0. The company did not expect many to buy a disk drive, and using BASIC 2.0 simplified VIC-20 owners' transition to the 64. \"The choice of BASIC 2.0 instead of 4.0 was made with some soul-searching, not just at random. The typical user of a C64 is not expected to need the direct disk commands as much as other extensions, and the amount of memory to be committed to BASIC were to be limited. We chose to leave expansion space for color and sound extensions instead of the disk features. As a result, you will have to handle the disk in the more cumbersome manner of the 'old days'.\"",
"title": "Software"
},
{
"paragraph_id": 33,
"text": "The version of Microsoft BASIC is not very comprehensive and does not include specific commands for sound or graphics manipulation, instead requiring users to use the \"PEEK and POKE\" commands to access the graphics and sound chip registers directly. To provide extended commands, including graphics and sound, Commodore produced two different cartridge-based extensions to BASIC 2.0: Simons' BASIC and Super Expander 64. Other languages available for the C64 include Pascal, C, Logo, Forth, and FORTRAN. Compilers for BASIC 2.0 such as Petspeed 2 (from Commodore), Blitz (from Jason Ranheim), and Turbo Lightning (from Ocean Software) were produced. Most commercial C64 software was written in assembly language, either cross-developed on a larger computer, or directly on the C64 using a machine code monitor or an assembler. This maximized speed and minimized memory use. Some games, particularly adventures, used high-level scripting languages and sometimes mixed BASIC and machine language.",
"title": "Software"
},
{
"paragraph_id": 34,
"text": "Many third-party operating systems have been developed for the C64. As well as the original GEOS, two third-party GEOS-compatible systems have been written: Wheels and GEOS megapatch. Both of these require hardware upgrades to the original C64. Several other operating systems are or have been available, including WiNGS OS, the Unix-like LUnix, operated from a command-line, and the embedded systems OS Contiki, with full GUI. Other less well-known OSes include ACE, Asterix, DOS/65, and GeckOS. A version of CP/M was released, but this requires the addition of an external Z80 processor to the expansion bus. Furthermore, the Z80 processor is underclocked to be compatible with the C64's memory bus, so performance is poor compared to other CP/M implementations. C64 CP/M and C128 CP/M both suffer a lack of software; although most commercial CP/M software can run on these systems, software media is incompatible between platforms. The low usage of CP/M on Commodores means that software houses saw no need to invest in mastering versions for the Commodore disk format. The C64 CP/M cartridge is also not compatible with anything except the early 326298 motherboards.",
"title": "Software"
},
{
"paragraph_id": 35,
"text": "During the 1980s, the Commodore 64 was used to run bulletin board systems using software packages such as Punter BBS, Bizarre 64, Blue Board, C-Net, Color 64, CMBBS, C-Base, DMBBS, Image BBS, EBBS, and The Deadlock Deluxe BBS Construction Kit, often with sysop-made modifications. These boards sometimes were used to distribute cracked software. As late as December 2013, there were 25 such Bulletin Board Systems in operation, reachable via the Telnet protocol. There were major commercial online services, such as Compunet (UK), CompuServe (US – later bought by America Online), The Source (US), and Minitel (France) among many others. These services usually required custom software which was often bundled with a modem and included free online time as they were billed by the minute. Quantum Link (or Q-Link) was a US and Canadian online service for Commodore 64 and 128 personal computers that operated from November 5, 1985, to November 1, 1994. It was operated by Quantum Computer Services of Vienna, Virginia, which in October 1991 changed its name to America Online and continued to operate its AOL service for the IBM PC compatible and Apple Macintosh. Q-Link was a modified version of the PlayNET system, which Control Video Corporation (CVC, later renamed Quantum Computer Services) licensed.",
"title": "Software"
},
{
"paragraph_id": 36,
"text": "The first graphical character-based interactive environment is Club Caribe. First released as Habitat in 1988, Club Caribe was introduced by LucasArts for Q-Link customers on their Commodore 64 computers. Users could interact with one another, chat and exchange items. Although the game's open world was very basic, its use of online avatars and the combination of chat and graphics was revolutionary. Online graphics in the late 1980s were severely restricted by the need to support modem data transfer rates as low as 300 bits per second. Habitat's graphics were stored locally on floppy disk, eliminating the need for network transfer.",
"title": "Software"
},
{
"paragraph_id": 37,
"text": "The C64 uses an 8-bit MOS Technology 6510 microprocessor that is almost identical to the 6502 but has three-state buses, a different pinout, slightly different clock signals and other minor changes for this application. It also has six I/O lines on otherwise-unused legs on the 40-pin IC package. These are used for two purposes in the C64: to bank-switch the machine's read-only memory (ROM) in and out of the processor's address space, and to operate the datasette tape recorder. The C64 has 64 KB of 8-bit-wide dynamic RAM, 1 KB of 4-bit-wide static color RAM for text mode, and 38 KB are available to built-in Commodore BASIC 2.0 on startup. There is 20 KB of ROM, made up of the BASIC interpreter, the KERNAL, and the character ROM. Because the processor can only address 64 KB at a time, the ROM was mapped into memory and only 38911 bytes of RAM (plus 4 KB between the ROMs) were available at startup. Most \"breadbin\" Commodore 64s used 4164 DRAM with eight chips totaling 64K of system RAM. Later models, featuring Assy 250466 and Assy 250469 motherboards, used 41464 DRAM (64K×4) chips which stored 32 KB per chip (so only two were required). Because 4164 DRAMs are 64K×1, eight chips are needed to make an entire byte; the computer will not function without all of them present. The first chip contains Bit 0 for the memory space, the second chip contains Bit 1, and so forth.",
"title": "Hardware"
},
{
"paragraph_id": 38,
"text": "The C64 performs a RAM test on power-up and if a RAM error is detected, the amount of free BASIC memory will be lower than the normal 38,911. If the faulty chip is in lower memory, then an ?OUT OF MEMORY IN 0 error is displayed rather than the usual BASIC startup banner.",
"title": "Hardware"
},
{
"paragraph_id": 39,
"text": "The C64 uses a complicated memory-banking scheme; the normal power-on default is the BASIC ROM mapped in at $A000-$BFFF, and the screen editor (KERNAL) ROM at $E000–$FFFF. RAM under the system ROMs can be written to, but not read back, without swapping out the ROMs. Memory location $01 contains a register with control bits for enabling or disabling the system ROMs and the I/O area at $D000. If the KERNAL ROM is swapped out, BASIC will be removed at the same time. BASIC is not active without the KERNAL; BASIC often calls KERNAL routines, and part of the ROM code for BASIC is in the KERNAL ROM.",
"title": "Hardware"
},
{
"paragraph_id": 40,
"text": "The character ROM is normally invisible to the CPU. The character ROM may be mapped into $D000–$DFFF, where it is then visible to the CPU. Because doing so necessitates swapping out the I/O registers, interrupts must first be disabled. By removing I/O from the memory map, $D000–$DFFF becomes free RAM.",
"title": "Hardware"
},
{
"paragraph_id": 41,
"text": "C64 cartridges map into assigned ranges in the CPU's address space. The most common cartridge auto-starting requires a string at $8000 which contains \"CBM80\" followed by the address where program execution begins. A few C64 cartridges released in 1982 use Ultimax mode (or MAX mode), a leftover feature of the unsuccessful MAX Machine. These cartridges map into $F000 and displace the KERNAL ROM. If Ultimax mode is used, the programmer will have to provide code for handling system interrupts. The cartridge port has 16 address lines, which grants access to the computer's entire address space if needed. Disk and tape software normally load at the start of BASIC memory ($0801), and use a small BASIC stub (such as 10 SYS(2064)) to jump to the start of the program. Although no Commodore 8-bit machine except the C128 can automatically boot from a floppy disk, some software intentionally overwrites certain BASIC vectors in the process of loading so execution begins automatically (instead of requiring the user to type RUN at the BASIC prompt after loading).",
"title": "Hardware"
},
{
"paragraph_id": 42,
"text": "About 300 cartridges were released for the C64, primarily during the machine's first 2+1⁄2 years on the market, after which most software outgrew the 16 KB cartridge limit. Larger software companies, such as Ocean Software, began releasing games on bank-switched cartridges to overcome the 16 KB cartridge limit during the C64's final years.",
"title": "Hardware"
},
{
"paragraph_id": 43,
"text": "Commodore did not include a reset button on its computers until the CBM-II line, but third-party cartridges had a reset button. A soft reset can be triggered by jumping to the CPU reset routine at $FCE2 (64738). A few programs use this as an exit feature, although it does not clear memory.",
"title": "Hardware"
},
{
"paragraph_id": 44,
"text": "The KERNAL ROM underwent three revisions, mainly designed to fix bugs. The initial version is only found on 326298 motherboards (used in the first production models), and cannot detect whether an NTSC or PAL VIC-II is present. The second revision is found on all C64s made from late 1982 through 1985. The final KERNAL ROM revision was introduced on the 250466 motherboard (late breadbin models with 41464 RAM), and is found in all C64Cs. The 6510 CPU is clocked at 1.023 MHz (NTSC) and 0.985 MHz (PAL), lower than some competing systems; the Atari 800, for example, is clocked at 1.79 MHz). Performance can be boosted slightly by disabling the VIC-II's video output via a register write. This feature is often used by tape and disk fast loaders and the KERNAL cassette routine to keep a standard CPU cycle timing not modified by the VIC-II's sharing of the bus.",
"title": "Hardware"
},
{
"paragraph_id": 45,
"text": "The restore key is gated directly to the CPU's NMI line, and will generate an NMI if pressed. The KERNAL handler for the NMI checks if run/stop is also pressed; if not, it ignores the NMI and exits. Run/stop-restore is normally a soft reset in BASIC which restores all I/O registers to their power-on default state, but does not clear memory or reset pointers; any BASIC programs in memory will be left untouched. Machine-language software usually disables run/stop-restore by remapping the NMI vector to a dummy RTI instruction. The NMI can also be used for an extra interrupt thread by programs, but risks a system lockup or other undesirable side effects if the restore key is accidentally pressed (which activates the NMI thread).",
"title": "Hardware"
},
{
"paragraph_id": 46,
"text": "The C64 retained the VIC-20's DE-9 Atari joystick port and added another; any Atari-specification game controller can be used on a C64. The joysticks are read from the registers at $DC00 and $DC01, and most software is designed to use a joystick in port 2 for control rather than port 1; the upper bits of $DC00 are used by the keyboard, and an I/O conflict can result. Although it is possible to use Sega gamepads on a C64, it is not recommended; their slightly-different signal can damage the CIA chip. The SID chip's register $D419, used to control paddles, is an analog input. A handful of games, primarily released early in the computer's life cycle, can use paddles. In 1986, Commodore released two mice for the C64 and C128: the 1350 and 1351. The 1350 is a digital device read from the joystick registers, and can be used with any program supporting joystick input. The 1351 is an analog potentiometer-based mouse, read with the SID's analog-to-digital converter.",
"title": "Hardware"
},
{
"paragraph_id": 47,
"text": "The VIC-II graphics chip features 16 colors, eight hardware sprites per scanline (enabling up to 112 sprites per PAL screen), scrolling capabilities, and two bitmap graphics modes.",
"title": "Hardware"
},
{
"paragraph_id": 48,
"text": "The standard text mode features 40 columns, like most Commodore PET models; the built-in character encoding is not standard ASCII but PETSCII, an extended form of ASCII-1963. The KERNAL ROM sets the VIC-II to a dark-blue background on power-up, with a light-blue border and text. Unlike the PET and VIC-20, the C64 uses double-width text; some early VIC-IIs had poor video quality which resulted in a fuzzy picture. Most screenshots show borders around the screen, a feature of the VIC-II chip. By utilizing interrupts to reset hardware registers with precise timing, it was possible to place graphics within the borders and use the full screen.",
"title": "Hardware"
},
{
"paragraph_id": 49,
"text": "The C64 has a resolution of 320×200 pixels, consisting of a 40×25 grid of 8×8 character blocks. It has 255 predefined character blocks, known as PETSCII. The character set can be copied into RAM and modified by a programmer.",
"title": "Hardware"
},
{
"paragraph_id": 50,
"text": "There are two color modes: high resolution, with two colours available per character block (one foreground and one background), and multicolour (four colors per character block – three foreground and one background). In multicolor mode, attributes are shared between pixel pairs so the effective visible resolution is 160×200 pixels; only 16 KB of memory is available for the VIC-II video processor.",
"title": "Hardware"
},
{
"paragraph_id": 51,
"text": "Since the C64 has a bitmapped screen, it is possible (but slow) to draw each pixel individually. Most programmers used techniques developed for earlier, non-bitmapped systems like the Commodore PET and TRS-80. A programmer redraws the character set, and the video processor fills the screen block by block from the top left corner to the bottom right corner. Two types of animation are used: character block animation and hardware sprites.",
"title": "Hardware"
},
{
"paragraph_id": 52,
"text": "The user draws a series of characters of a person walking, possibly two in the middle of the block and another two walking in and out of the block. Then the user sequences them so the character walks into the block and out again. Drawing a series of these gets a person walking across the screen. By timing the redraw to occur when the television screen blanks out to restart drawing the screen, there will be no flicker. For this to happen, a user programs the VIC-II that it generates a raster interrupt when video flyback occurs. This technique is used in the Space Invaders arcade game.",
"title": "Hardware"
},
{
"paragraph_id": 53,
"text": "Horizontal and vertical pixel scrolling of up to one character block is supported by two hardware scroll registers. Depending on timing, hardware scrolling affects the entire screen or selected lines of character blocks. On a non-emulated C64, scrolling is glass-like and blur-free.",
"title": "Hardware"
},
{
"paragraph_id": 54,
"text": "A sprite is a character which moves over an area of the screen, draws over the background, and redraws it after it moves. This differs from character block animation, where the user flips character blocks. On the C64, the VIC-II video processor handles most sprite emulation; the programmer defines the sprite and where it goes.",
"title": "Hardware"
},
{
"paragraph_id": 55,
"text": "The C64 has two types of sprites, respecting their color-mode limitations. Hi-res sprites have one color (one background and one foreground), and multi-color sprites have three (one background and three foreground). Color modes can be split or windowed on a single screen. Sprites can be doubled in size vertically and horizontally up to four times their size, but the pixel attributes are the same – the pixels become \"fatter\". There are eight sprites, and all eight can be shown in each horizontal line concurrently. Sprites can move with glassy smoothness in front of, and behind, screen characters and other sprites.",
"title": "Hardware"
},
{
"paragraph_id": 56,
"text": "The hardware sprites of a C64 can be displayed on a bitmapped (high-resolution) screen or a text-mode screen in conjunction with fast and smooth character block animation. Software-emulated sprites on systems without support for hardware sprites, such as the Apple II and ZX Spectrum, required a bitmapped screen. Sprite-sprite and sprite-background collisions are detected in hardware, and the VIC-II can be programmed to trigger an interrupt accordingly.",
"title": "Hardware"
},
{
"paragraph_id": 57,
"text": "The SID chip has three channels, each with its own ADSR envelope generator and filter capabilities. Ring modulation makes use of channel three to work with the other two channels. Bob Yannes developed the SID chip and, later, co-founded the synthesizer company Ensoniq. Composers and programmers of game music on the C64 include Rob Hubbard, Jeroen Tel, Tim Follin, David Whittaker, Chris Hülsbeck, Ben Daglish, Martin Galway, Kjell Nordbø and David Dunn. Due to the chip's three channels, chords are often played as arpeggios. It was also possible to continuously update the master volume with sampled data to enable the playback of 4-bit digitized audio. By 2008, it was possible to play four-channel 8-bit audio samples and two SID channels and still use filtering.",
"title": "Hardware"
},
{
"paragraph_id": 58,
"text": "There are two versions of the SID chip: the 6581 and the 8580. The MOS Technology 6581 was used in the original (\"breadbin\") C64s, the early versions of the 64C, and the Commodore 128. The 6581 was replaced with the MOS Technology 8580 in 1987. Although the 6581 sound quality is a little crisper, it lacks the 8580's versatility; the 8580 can mix all available waveforms on each channel, but the 6581 can only mix waveforms in a channel in a limited fashion. The main difference between the 6581 and the 8580 is the supply voltage; the 6581 requires 12 volts, and the 8580 9 volts. A modification can be made to use the 6581 in a newer 64C board (which uses the 9-volt chip).",
"title": "Hardware"
},
{
"paragraph_id": 59,
"text": "In 1986, the Sound Expander was released for the Commodore 64. It was a sound module with a Yamaha YM3526 chip capable of FM synthesis, primarily intended for professional music production.",
"title": "Hardware"
},
{
"paragraph_id": 60,
"text": "Commodore made many changes to the C64's hardware, sometimes introducing compatibility issues. The computer's rapid development and Commodore and Jack Tramiel's focus on cost-cutting instead of product testing resulted in several defects which caused developers like Epyx to complain and required many revisions; Charpentier said that \"not coming a little close to quality\" was one of the company's mistakes.",
"title": "Hardware"
},
{
"paragraph_id": 61,
"text": "Cost reduction was the reason for most of the revisions. Reducing manufacturing costs was vitally important to Commodore's survival during the price war and lean years of the 16-bit era. The C64's original (NMOS-based) motherboard went through two major redesigns and a number of revisions, exchanging positions of the VIC-II, SID and PLA chips. Much of the cost was initially eliminated by reducing the number of discrete components, such as diodes and resistors, which enabled a smaller printed circuit board. There were 16 C64 motherboard revisions to simplify production and reduce manufacturing costs. Some board revisions were exclusive to PAL regions. All C64 motherboards were manufactured in Hong Kong.",
"title": "Hardware"
},
{
"paragraph_id": 62,
"text": "IC locations changed frequently with each motherboard revision, as did the presence (or lack) of the metal RF shield around the VIC-II; PAL boards often had aluminized cardboard instead of a metal shield. The SID and VIC-II are socketed on all boards, but the other ICs may be socketed or soldered. The first production C64s, made from 1982 to early 1983, are known as \"silver label\" models due to the case having a silver-colored \"Commodore\" logo. The power LED had a silver badge reading \"64\" around it. These machines have only a five-pin video cable, and cannot produce S-Video. Commodore introduced the familiar \"rainbow badge\" case in late 1982, but many machines produced into early 1983 also used silver-label cases until the existing stock was used up. The original 326298 board was replaced in spring 1983 by the 250407 motherboard, which had an eight-pin video connector and added S-Video support. This case design was used until the C64C appeared in 1986. All ICs switched to plastic shells, but the silver-label C64s (notably the VIC-II) had some ceramic ICs. The case is made from ABS plastic, which may become brown with time; this can be reversed with retrobright.",
"title": "Hardware"
},
{
"paragraph_id": 63,
"text": "The VIC-II was manufactured with 5-micrometer NMOS technology, and was clocked at 17.73447 MHz (PAL) or 14.31818 MHz (NTSC). Internally, the clock was divided to generate the dot clock (about 8 MHz) and the two-phase system clocks (about 1 MHz; the pixel and system clock speeds differ slightly on NTSC and PAL machines). At such high clock rates the chip generated considerable heat, forcing MOS Technology to use a ceramic dual in-line package known as a CERDIP. The ceramic package was more expensive, but dissipated heat more effectively than plastic.",
"title": "Hardware"
},
{
"paragraph_id": 64,
"text": "After a redesign in 1983, the VIC-II was encased in a plastic dual in-line package; this reduced costs substantially, but did not eliminate the heat problem. Without a ceramic package, the VIC-II required a heat sink. To avoid extra cost, the metal RF shielding doubled as the VIC's heat sink; not all units shipped with this type of shielding, however. Most C64s in Europe shipped with a cardboard RF shield coated with a layer of metal foil. The effectiveness of the cardboard was questionable; it acted instead as an insulator, blocking airflow and trapping heat generated by the SID, VIC, and PLA chips. The SID was originally manufactured using NMOS at 7 micrometers and, in some areas, 6 micrometers. The prototype SID and some early production models had a ceramic dual in-line package, but (unlike the VIC-II) are very rare; the SID was encased in plastic when production began in early 1982.",
"title": "Hardware"
},
{
"paragraph_id": 65,
"text": "In 1986, Commodore released the last revision of the classic C64 motherboard. It was otherwise identical to the 1984 design, except for two 64-kilobit × 4-bit DRAM chips which replaced the original eight 64-kilobit × 1-bit ICs. After the release of the Commodore 64C, MOS Technology began to reconfigure the original C64's chipset to use HMOS technology. The main benefit of HMOS was that it required less voltage to drive the IC, generating less heat. This enhanced the reliability of the SID and VIC-II. The new chipset was renumbered 85xx to reflect the change to HMOS.",
"title": "Hardware"
},
{
"paragraph_id": 66,
"text": "In 1987, Commodore released a 64C variant with a redesigned motherboard known as a \"short board\". The new board used the HMOS chipset, with a new 64-pin PLA chip. The \"SuperPLA\", as it was called, integrated discrete components and transistor–transistor logic (TTL) chips. In the last revision of the 64C motherboard, the 2114 4-bit-wide color RAM was integrated into the SuperPLA.",
"title": "Hardware"
},
{
"paragraph_id": 67,
"text": "The C64 used an external power supply, a linear transformer with multiple taps differing from switch mode (presently used on PC power supplies). It was encased in epoxy resin gel, which discouraged tampering but increased the heat level during use. The design saved space in the computer's case, and allowed international versions to be more easily manufactured. The 1541-II and 1581 disk drives and third-party clones also have external power-supply \"bricks\", like most peripherals.",
"title": "Hardware"
},
{
"paragraph_id": 68,
"text": "Commodore power supplies often failed sooner than expected. The computer reportedly had a 30-percent return rate in late 1983, compared to the 5–7 percent rate considered acceptable by the industry; Creative Computing reported four working C64s, out of seven. Malfunctioning power bricks were notorious for damaging the RAM chips. Due to their higher density and single supply (+5V), they had less tolerance for over-voltage. The usually-failing voltage regulator could be replaced by piggybacking a new regulator on the board and fitting a heat sink on top.",
"title": "Hardware"
},
{
"paragraph_id": 69,
"text": "The original PSU on early-1982 and 1983 machines had a 5-pin connector which could accidentally be plugged into the computer's video output. Commodore later changed the design, omitting the resin gel to reduce costs. The following model, the Commodore 128, used a larger, improved power supply which included a fuse. The power supply for the Commodore REU was similar to that of the Commodore 128, providing an upgrade for customers purchasing the accessory.",
"title": "Hardware"
},
{
"paragraph_id": 70,
"text": "Creative Micro Designs also produced a 2 MB REU for the C64 and C128, called the 1750 XL. The technology actually supported up to 16 MB, but 2 MB was the biggest one officially made. Expansions of up to 16 MB were also possible via the CMD SuperCPU.",
"title": "Hardware"
},
{
"paragraph_id": 71,
"text": "The 9 volt AC is used to supply power via a charge pump to the SID sound generator chip, provide 6.8V via a rectifier to the cassette motor, a \"0\" pulse for every positive half wave to the time-of-day (TOD) input on the CIA chips, and 9 volts AC directly to the user-port. Thus, as a minimum, a 12 V square wave is required. But a 9 V sine wave is preferred.",
"title": "Hardware"
},
{
"paragraph_id": 72,
"text": "Note that even if an I/O chip like the VIC-II only uses 64 positions in the memory address space, it will occupy 1,024 addresses because some address bits are left undecoded.",
"title": "Hardware"
},
{
"paragraph_id": 73,
"text": "Vertical integration was the key to keeping Commodore 64 production costs low. At the introduction in 1982, the production cost was US$135 and the retail price US$595. In 1985, the retail price went down to US$149 (US$410 today) and the production costs were believed to be somewhere between US$35–50 (c. US$100–140 today). Commodore would not confirm this cost figure. Dougherty of the Berkeley Softworks estimated the costs of the Commodore 64 parts based on his experience at Mattel and Imagic.",
"title": "Hardware"
},
{
"paragraph_id": 74,
"text": "To lower costs, TTL chips were replaced with less expensive custom chips and ways to increase the yields on the sound and graphics chips were found. The video chip 6567 had the ceramic package replaced with plastic but heat dissipation demanded a redesign of the chip and the development of a plastic package that can dissipate heat as well as ceramic.",
"title": "Hardware"
},
{
"paragraph_id": 75,
"text": "Clones are computers which imitate C64 functions. In mid-2004, after an absence from the marketplace of more than 10 years, PC manufacturer Tulip Computers (owners of the Commodore brand since 1997) announced the C64 Direct-to-TV (C64DTV): a joystick-based TV game based on the C64, with 30 games in its ROM. Designed by Jeri Ellsworth, a self-taught computer designer who had designed the C-One C64 implementation, the C64DTV was similar to other mini-consoles based on the modestly-successful Atari 2600 and Intellivision. The C64DTV was advertised on QVC in the United States for the 2004 holiday season.",
"title": "Hardware"
},
{
"paragraph_id": 76,
"text": "In 2015, a Commodore 64-compatible motherboard was produced by Individual Computers. Called the C64 Reloaded, it is a redesign of Commodore 64 motherboard revision 250466 with several new features. The motherboard is designed to be placed in an existing, empty C64 or C64C case. Produced in limited quantities, models of this Commodore 64 clone have machined or ZIF sockets in which custom C64 chips are placed. The board contains jumpers to accept revisions of the VIC-II and SID chips and the ability to switch between the PAL and NTSC video systems. It has several innovations, including selection (via the restore key) of KERNAL and character ROMs, built-in reset toggle on the power switch, and an S-Video socket to replace the original TV modulator. The motherboard is powered by a DC-to-DC converter which uses 12 V DC from a mains adapter, rather than the original (and failure-prone) Commodore 64 power-supply brick.",
"title": "Hardware"
},
{
"paragraph_id": 77,
"text": "C64 enthusiasts were developing new hardware in 2008, including Ethernet cards, specially-adapted hard disks and flash card interfaces (sd2iec). A-SID, which gives the C-64 a wah-wah effect, was introduced in 2022.",
"title": "Hardware"
},
{
"paragraph_id": 78,
"text": "The C64 brand was reused in 1998 for the Web.it Internet Computer, a low-powered, Internet-oriented, all-in-one x86 PC running MS-DOS and Windows 3.1. It uses an AMD Élan SC400 SoC with 16 MB of RAM, a 3.5-inch floppy disk drive, 56k modem and PC Card. Despite its Commodore 64 nameplate, the C64 Web.it looks different and is only directly compatible with the original via included emulation software. PC clones branded C64x sold by Commodore USA, a company licensing the Commodore trademark, began shipping in June 2011. The C64x's case resembles the original C64 computer, but – like the Web.it – it is based on x86 architecture and is not compatible with the Commodore 64.",
"title": "Hardware"
},
{
"paragraph_id": 79,
"text": "Several Commodore 64 games were released on the Nintendo Wii's Virtual Console service in Europe and North America. They were not listed on the service in August 2013.",
"title": "Hardware"
},
{
"paragraph_id": 80,
"text": "THEC64 Mini, an unofficial Linux-based console emulating the Commodore 64, was released in 2018 by UK-based Retro Games. The console is a decorative, half-scale Commodore 64 with two USB and one HDMI port, and a mini USB connection to power the system. The console's keyboard is non-functional; the system is controlled by an included THEC64 joystick or a separate USB keyboard. New software ROMs can be loaded into the console, which uses emulator x64 (as part of VICE) to run software and has a built-in graphical operating system.",
"title": "Hardware"
},
{
"paragraph_id": 81,
"text": "The full-size THEC64 was released in 2019 in Europe and Australia, and was scheduled for release in November 2020 in North America. The console and built-in keyboard are built to scale with the original Commodore 64, including a functional keyboard. Enhancements include VIC-20 emulation, four USB ports, and an upgraded joystick. Neither product has a Commodore trademark. The Commodore key on the original keyboard is replaced with a THEC64 key; Retro Games can call neither product a C64, although the system ROMs are licensed from Cloanto Corporation. The consoles can be switched between carousel mode (to access the built-in game library) and classic mode, in which they operate similarly to a traditional Commodore 64. USB storage can be used to hold disk, cartridge and tape images for use with the machine.",
"title": "Hardware"
},
{
"paragraph_id": 82,
"text": "Commodore 64 emulators include the open source VICE, Hoxs64, and CCS64. An iPhone app was also released with a compilation of C64 ports.",
"title": "Emulators"
}
] | The Commodore 64, also known as the C64, is an 8-bit home computer introduced in January 1982 by Commodore International. It has been listed in the Guinness World Records as the highest-selling single computer model of all time, with independent estimates placing the number sold between 12.5 and 17 million units. Volume production started in early 1982, marketing in August for US$595. Preceded by the VIC-20 and Commodore PET, the C64 took its name from its 64 kilobytes of RAM. With support for multicolor sprites and a custom chip for waveform generation, the C64 could create superior visuals and audio compared to systems without such custom hardware. The C64 dominated the low-end computer market for most of the later years of the 1980s. For a substantial period (1983–1986), the C64 had between 30% and 40% share of the US market and two million units sold per year, outselling IBM PC compatibles, Apple computers, and the Atari 8-bit family of computers. Sam Tramiel, a later Atari president and the son of Commodore's founder, said in a 1989 interview, "When I was at Commodore we were building 400,000 C64s a month for a couple of years." In the UK market, the C64 faced competition from the BBC Micro, the ZX Spectrum, and later the Amstrad CPC 464. but the C64 was still the second-most-popular computer in the UK after the ZX Spectrum. The Commodore 64 failed to make any impact in Japan, as their market was dominated by Japanese computers, such as the NEC PC-8801, Sharp X1, Fujitsu FM-7, and MSX. Part of the Commodore 64's success was its sale in regular retail stores instead of only electronics or computer hobbyist specialty stores. Commodore produced many of its parts in-house to control costs, including custom integrated circuit chips from MOS Technology. In the United States, it has been compared to the Ford Model T automobile for its role in bringing a new technology to middle-class households via creative and affordable mass-production. Approximately 10,000 commercial software titles have been made for the Commodore 64, including development tools, office productivity applications, and video games. C64 emulators allow anyone with a modern computer, or a compatible video game console, to run these programs today. The C64 is also credited with popularizing the computer demoscene and is still used today by some computer hobbyists. In 2011, 17 years after it was taken off the market, research showed that brand recognition for the model was still at 87%. | 2001-12-02T00:59:17Z | 2023-12-18T19:18:37Z | [
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7,294 | Cartography | Cartography (/kɑːrˈtɒɡrəfi/; from Ancient Greek: χάρτης chartēs, 'papyrus, sheet of paper, map'; and γράφειν graphein, 'write') is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an imagined reality) can be modeled in ways that communicate spatial information effectively.
The fundamental objectives of traditional cartography are to:
Modern cartography constitutes many theoretical and practical foundations of geographic information systems (GIS) and geographic information science (GISc).
What is the earliest known map is a matter of some debate, both because the term "map" is not well-defined and because some artifacts that might be maps might actually be something else. A wall painting that might depict the ancient Anatolian city of Çatalhöyük (previously known as Catal Huyuk or Çatal Hüyük) has been dated to the late 7th millennium BCE. Among the prehistoric alpine rock carvings of Mount Bego (France) and Valcamonica (Italy), dated to the 4th millennium BCE, geometric patterns consisting of dotted rectangles and lines are widely interpreted in archaeological literature as depicting cultivated plots. Other known maps of the ancient world include the Minoan "House of the Admiral" wall painting from c. 1600 BCE, showing a seaside community in an oblique perspective, and an engraved map of the holy Babylonian city of Nippur, from the Kassite period (14th – 12th centuries BCE). The oldest surviving world maps are from 9th century BCE Babylonia. One shows Babylon on the Euphrates, surrounded by Assyria, Urartu and several cities, all, in turn, surrounded by a "bitter river" (Oceanus). Another depicts Babylon as being north of the center of the world.
The ancient Greeks and Romans created maps from the time of Anaximander in the 6th century BCE. In the 2nd century CE, Ptolemy wrote his treatise on cartography, Geographia. This contained Ptolemy's world map – the world then known to Western society (Ecumene). As early as the 8th century, Arab scholars were translating the works of the Greek geographers into Arabic. Roads were essential in the Roman world, motivating the creation of maps, called itinerarium, that portrayed the world as experienced via the roads. The Tabula Peutingeriana is the only surviving example.
In ancient China, geographical literature dates to the 5th century BCE. The oldest extant Chinese maps come from the State of Qin, dated back to the 4th century BCE, during the Warring States period. In the book Xin Yi Xiang Fa Yao, published in 1092 by the Chinese scientist Su Song, a star map on the equidistant cylindrical projection. Although this method of charting seems to have existed in China even before this publication and scientist, the greatest significance of the star maps by Su Song is that they represent the oldest existent star maps in printed form.
Early forms of cartography of India included depictions of the pole star and surrounding constellations. These charts may have been used for navigation.
Mappae mundi ('maps of the world') are the medieval European maps of the world. About 1,100 of these are known to have survived: of these, some 900 are found illustrating manuscripts, and the remainder exist as stand-alone documents.
The Arab geographer Muhammad al-Idrisi produced his medieval atlas Tabula Rogeriana (Book of Roger) in 1154. By combining the knowledge of Africa, the Indian Ocean, Europe, and the Far East (which he learned through contemporary accounts from Arab merchants and explorers) with the information he inherited from the classical geographers, he was able to write detailed descriptions of a multitude of countries. Along with the substantial text he had written, he created a world map influenced mostly by the Ptolemaic conception of the world, but with significant influence from multiple Arab geographers. It remained the most accurate world map for the next three centuries. The map was divided into seven climatic zones, with detailed descriptions of each zone. As part of this work, a smaller, circular map depicting the south on top and Arabia in the center was made. Al-Idrisi also made an estimate of the circumference of the world, accurate to within 10%.
In the Age of Discovery, from the 15th century to the 17th century, European cartographers both copied earlier maps (some of which had been passed down for centuries) and drew their own based on explorers' observations and new surveying techniques. The invention of the magnetic compass, telescope and sextant enabled increasing accuracy. In 1492, Martin Behaim, a German cartographer and advisor to the king John II of Portugal, made the oldest extant globe of the Earth.
In 1507, Martin Waldseemüller produced a globular world map and a large 12-panel world wall map (Universalis Cosmographia) bearing the first use of the name "America." Portuguese cartographer Diogo Ribero was the author of the first known planisphere with a graduated Equator (1527). Italian cartographer Battista Agnese produced at least 71 manuscript atlases of sea charts. Johannes Werner refined and promoted the Werner projection. This was an equal-area, heart-shaped world map projection (generally called a cordiform projection) that was used in the 16th and 17th centuries. Over time, other iterations of this map type arose; most notable are the sinusoidal projection and the Bonne projection. The Werner projection places its standard parallel at the North Pole; a sinusoidal projection places its standard parallel at the equator; and the Bonne projection is intermediate between the two.
In 1569, mapmaker Gerardus Mercator first published a map based on his Mercator projection, which uses equally-spaced parallel vertical lines of longitude and parallel latitude lines spaced farther apart as they get farther away from the equator. By this construction, courses of constant bearing are conveniently represented as straight lines for navigation. The same property limits its value as a general-purpose world map because regions are shown as increasingly larger than they actually are the further from the equator they are. Mercator is also credited as the first to use the word "atlas" to describe a collection of maps. In the later years of his life, Mercator resolved to create his Atlas, a book filled with many maps of different regions of the world, as well as a chronological history of the world from the Earth's creation by God until 1568. He was unable to complete it to his satisfaction before he died. Still, some additions were made to the Atlas after his death, and new editions were published after his death.
In 1570, the Brabantian cartographer Abraham Ortelius, strongly encouraged by Gillis Hooftman, created the first true modern atlas, Theatrum Orbis Terrarum. In a rare move, Ortelius credited mapmakers who contributed to the atlas, the list of which grew to 183 individuals by 1603.
In the Renaissance, maps were used to impress viewers and establish the owner's reputation as sophisticated, educated, and worldly. Because of this, towards the end of the Renaissance, maps were displayed with equal importance of painting, sculptures, and other pieces of art. In the sixteenth century, maps were becoming increasingly available to consumers through the introduction of printmaking, with about 10% of Venetian homes having some sort of map by the late 1500s.
There were three main functions of maps in the Renaissance:
In medieval times, written directions of how to get somewhere were more common than the use of maps. With the Renaissance, cartography began to be seen as a metaphor for power. Political leaders could lay claim to territories through the use of maps, and this was greatly aided by the religious and colonial expansion of Europe. The Holy Land and other religious places were the most commonly mapped during the Renaissance.
In the late 1400s to the late 1500s, Rome, Florence, and Venice dominated map-making and trade. It started in Florence in the mid-to late 1400s. Map trade quickly shifted to Rome and Venice but then was overtaken by atlas makers in the late 16th century. Map publishing in Venice was completed with humanities and book publishing in mind, rather than just informational use.
There were two main printmaking technologies in the Renaissance: woodcut and copper-plate intaglio, referring to the medium used to transfer the image onto paper.
In woodcut, the map image is created as a relief chiseled from medium-grain hardwood. The areas intended to be printed are inked and pressed against the sheet. Being raised from the rest of the block, the map lines cause indentations in the paper that can often be felt on the back of the map. There are advantages to using relief to make maps. For one, a printmaker doesn't need a press because the maps could be developed as rubbings. Woodblock is durable enough to be used many times before defects appear. Existing printing presses can be used to create the prints rather than having to create a new one. On the other hand, it is hard to achieve fine detail with the relief technique. Inconsistencies in linework are more apparent in woodcut than in intaglio. To improve quality in the late fifteenth century, a style of relief craftsmanship developed using fine chisels to carve the wood, rather than the more commonly used knife.
In intaglio, lines are engraved into workable metals, typically copper but sometimes brass. The engraver spreads a thin sheet of wax over the metal plate and uses ink to draw the details. Then, the engraver traces the lines with a stylus to etch them into the plate beneath. The engraver can also use styli to prick holes along the drawn lines, trace along them with colored chalk, and then engrave the map. Lines going in the same direction are carved at the same time, and then the plate is turned to carve lines going in a different direction. To print from the finished plate, ink is spread over the metal surface and scraped off such that it remains only in the etched channels. Then the plate is pressed forcibly against the paper so that the ink in the channels is transferred to the paper. The pressing is so forceful that it leaves a "plate mark" around the border of the map at the edge of the plate, within which the paper is depressed compared to the margins. Copper and other metals were expensive at the time, so the plate was often reused for new maps or melted down for other purposes.
Whether woodcut or intaglio, the printed map is hung out to dry. Once dry, it is usually placed in another press to flatten the paper. Any type of paper that was available at the time could be used to print the map, but thicker paper was more durable.
Both relief and intaglio were used about equally by the end of the fifteenth century.
Lettering in mapmaking is important for denoting information. Fine lettering is difficult in woodcut, where it often turned out square and blocky, contrary to the stylized, rounded writing style popular in Italy at the time. To improve quality, mapmakers developed fine chisels to carve the relief. Intaglio lettering did not suffer the troubles of a coarse medium and so was able to express the looping cursive that came to be known as cancellaresca. There were custom-made reverse punches that were also used in metal engraving alongside freehand lettering.
The first use of color in map-making cannot be narrowed down to one reason. There are arguments that color started as a way to indicate information on the map, with aesthetics coming second. There are also arguments that color was first used on maps for aesthetics but then evolved into conveying information. Either way, many maps of the Renaissance left the publisher without being colored, a practice that continued all the way into the 1800s. However, most publishers accepted orders from their patrons to have their maps or atlases colored if they wished. Because all coloring was done by hand, the patron could request simple, cheap color, or more expensive, elaborate color, even going so far as silver or gold gilding. The simplest coloring was merely outlines, such as of borders and along rivers. Wash color meant painting regions with inks or watercolors. Limning meant adding silver and gold leaf to the map to illuminate lettering, heraldic arms, or other decorative elements.
The early modern period saw the convergence of cartographical techniques across Eurasia and the exchange of mercantile mapping techniques via the Indian Ocean.
In the early seventeenth century, the Selden map was created by a Chinese cartographer. Historians have put its date of creation around 1620, but there is debate in this regard. This map's significance draws from historical misconceptions of East Asian cartography, the main one being that East Asians did not do cartography until Europeans arrived. The map's depiction of trading routes, a compass rose, and scale bar points to the culmination of many map-making techniques incorporated into Chinese mercantile cartography.
In 1689, representatives of the Russian tsar and Qing Dynasty met near the border town of Nerchinsk, which was near the disputed border of the two powers, in eastern Siberia. The two parties, with the Qing negotiation party bringing Jesuits as intermediaries, managed to work a treaty which placed the Amur River as the border between the Eurasian powers, and opened up trading relations between the two. This treaty's significance draws from the interaction between the two sides, and the intermediaries who were drawn from a wide variety of nationalities.
Maps of the Enlightenment period practically universally used copper plate intaglio, having abandoned the fragile, coarse woodcut technology. Use of map projections evolved, with the double hemisphere being very common and Mercator's prestigious navigational projection gradually making more appearances.
Due to the paucity of information and the immense difficulty of surveying during the period, mapmakers frequently plagiarized material without giving credit to the original cartographer. For example, a famous map of North America known as the "Beaver Map" was published in 1715 by Herman Moll. This map is a close reproduction of a 1698 work by Nicolas de Fer. De Fer, in turn, had copied images that were first printed in books by Louis Hennepin, published in 1697, and François Du Creux, in 1664. By the late 18th century, mapmakers often credited the original publisher with something along the lines of, "After [the original cartographer]" in the map's title or cartouche.
In cartography, technology has continually changed in order to meet the demands of new generations of mapmakers and map users. The first maps were produced manually, with brushes and parchment; so they varied in quality and were limited in distribution. The advent of magnetic devices, such as the compass and much later, magnetic storage devices, allowed for the creation of far more accurate maps and the ability to store and manipulate them digitally.
Advances in mechanical devices such as the printing press, quadrant, and vernier allowed the mass production of maps and the creation of accurate reproductions from more accurate data. Hartmann Schedel was one of the first cartographers to use the printing press to make maps more widely available. Optical technology, such as the telescope, sextant, and other devices that use telescopes, allowed accurate land surveys and allowed mapmakers and navigators to find their latitude by measuring angles to the North Star at night or the Sun at noon.
Advances in photochemical technology, such as the lithographic and photochemical processes, make possible maps with fine details, which do not distort in shape and which resist moisture and wear. This also eliminated the need for engraving, which further speeded up map production.
In the 20th century, aerial photography, satellite imagery, and remote sensing provided efficient, precise methods for mapping physical features, such as coastlines, roads, buildings, watersheds, and topography. The United States Geological Survey has devised multiple new map projections, notably the Space Oblique Mercator for interpreting satellite ground tracks for mapping the surface. The use of satellites and space telescopes now allows researchers to map other planets and moons in outer space. Advances in electronic technology ushered in another revolution in cartography: ready availability of computers and peripherals such as monitors, plotters, printers, scanners (remote and document) and analytic stereo plotters, along with computer programs for visualization, image processing, spatial analysis, and database management, have democratized and greatly expanded the making of maps. The ability to superimpose spatially located variables onto existing maps has created new uses for maps and new industries to explore and exploit these potentials. See also digital raster graphic.
In the early years of the new millennium, three key technological advances transformed cartography: the removal of Selective Availability in the Global Positioning System (GPS) in May 2000, which improved locational accuracy for consumer-grade GPS receivers to within a few metres; the invention of OpenStreetMap in 2004, a global digital counter-map that allowed anyone to contribute and use new spatial data without complex licensing agreements; and the launch of Google Earth in 2005 as a development of the virtual globe EarthViewer 3D (2004), which revolutionised accessibility of accurate world maps, as well as access to satellite and aerial imagery. These advances brought more accuracy to geographical and location-based data and widened the range of applications for cartography, for example in the development of satnav devices.
Today most commercial-quality maps are made using software of three main types: CAD, GIS and specialized illustration software. Spatial information can be stored in a database, from which it can be extracted on demand. These tools lead to increasingly dynamic, interactive maps that can be manipulated digitally.
Field-rugged computers, GPS, and laser rangefinders make it possible to create maps directly from measurements made on site.
There are technical and cultural aspects to producing maps. In this sense, maps can sometimes be said to be biased. The study of bias, influence, and agenda in making a map is what comprise a map's deconstruction. A central tenet of deconstructionism is that maps have power. Other assertions are that maps are inherently biased and that we search for metaphor and rhetoric in maps.
It is claimed that the Europeans promoted an "epistemological" understanding of the map as early as the 17th century. An example of this understanding is that "[European reproduction of terrain on maps] reality can be expressed in mathematical terms; that systematic observation and measurement offer the only route to cartographic truth…".
A common belief is that science heads in a direction of progress, and thus leads to more accurate representations of maps. In this belief, European maps must be superior to others, which necessarily employed different map-making skills. "There was a 'not cartography' land where lurked an army of inaccurate, heretical, subjective, valuative, and ideologically distorted images. Cartographers developed a 'sense of the other' in relation to nonconforming maps."
Depictions of Africa are a common target of deconstructionism. According to deconstructionist models, cartography was used for strategic purposes associated with imperialism and as instruments and representations of power during the conquest of Africa. The depiction of Africa and the low latitudes in general on the Mercator projection has been interpreted as imperialistic and as symbolic of subjugation due to the diminished proportions of those regions compared to higher latitudes where the European powers were concentrated.
Maps furthered imperialism and colonization of Africa in practical ways by showing basic information like roads, terrain, natural resources, settlements, and communities. Through this, maps made European commerce in Africa possible by showing potential commercial routes and made natural resource extraction possible by depicting locations of resources. Such maps also enabled military conquests and made them more efficient, and imperial nations further used them to put their conquests on display. These same maps were then used to cement territorial claims, such as at the Berlin Conference of 1884–1885.
Before 1749, maps of the African continent had African kingdoms drawn with assumed or contrived boundaries, with unknown or unexplored areas having drawings of animals, imaginary physical geographic features, and descriptive texts. In 1748, Jean B. B. d'Anville created the first map of the African continent that had blank spaces to represent the unknown territory.
In understanding basic maps, the field of cartography can be divided into two general categories: general cartography and thematic cartography. General cartography involves those maps that are constructed for a general audience and thus contain a variety of features. General maps exhibit many reference and location systems and often are produced in a series. For example, the 1:24,000 scale topographic maps of the United States Geological Survey (USGS) are a standard as compared to the 1:50,000 scale Canadian maps. The government of the UK produces the classic 1:50,000 (replacing the older 1 inch to 1 mile) "Ordnance Survey" maps of the entire UK and with a range of correlated larger- and smaller-scale maps of great detail. Many private mapping companies have also produced thematic map series.
Thematic cartography involves maps of specific geographic themes, oriented toward specific audiences. A couple of examples might be a dot map showing corn production in Indiana or a shaded area map of Ohio counties, divided into numerical choropleth classes. As the volume of geographic data has exploded over the last century, thematic cartography has become increasingly useful and necessary to interpret spatial, cultural and social data.
A third type of map is known as an "orienteering," or special purpose map. This type of map falls somewhere between thematic and general maps. They combine general map elements with thematic attributes in order to design a map with a specific audience in mind. Oftentimes, the type of audience an orienteering map is made for is in a particular industry or occupation. An example of this kind of map would be a municipal utility map.
A topographic map is primarily concerned with the topographic description of a place, including (especially in the 20th and 21st centuries) the use of contour lines showing elevation. Terrain or relief can be shown in a variety of ways (see Cartographic relief depiction). In the present era, one of the most widespread and advanced methods used to form topographic maps is to use computer software to generate digital elevation models which show shaded relief. Before such software existed, cartographers had to draw shaded relief by hand. One cartographer who is respected as a master of hand-drawn shaded relief is the Swiss professor Eduard Imhof whose efforts in hill shading were so influential that his method became used around the world despite it being so labor-intensive.
A topological map is a very general type of map, the kind one might sketch on a napkin. It often disregards scale and detail in the interest of clarity of communicating specific route or relational information. Beck's London Underground map is an iconic example. Although the most widely used map of "The Tube," it preserves little of reality: it varies scale constantly and abruptly, it straightens curved tracks, and it contorts directions. The only topography on it is the River Thames, letting the reader know whether a station is north or south of the river. That and the topology of station order and interchanges between train lines are all that is left of the geographic space. Yet those are all a typical passenger wishes to know, so the map fulfills its purpose.
Modern technology, including advances in printing, the advent of geographic information systems and graphics software, and the Internet, has vastly simplified the process of map creation and increased the palette of design options available to cartographers. This has led to a decreased focus on production skill, and an increased focus on quality design, the attempt to craft maps that are both aesthetically pleasing and practically useful for their intended purposes.
A map has a purpose and an audience. Its purpose may be as broad as teaching the major physical and political features of the entire world, or as narrow as convincing a neighbor to move a fence. The audience may be as broad as the general public or as narrow as a single person. Mapmakers use design principles to guide them in constructing a map that is effective for its purpose and audience.
The cartographic process spans many stages, starting from conceiving the need for a map and extending all the way through its consumption by an audience. Conception begins with a real or imagined environment. As the cartographer gathers information about the subject, they consider how that information is structured and how that structure should inform the map's design. Next, the cartographers experiment with generalization, symbolization, typography, and other map elements to find ways to portray the information so that the map reader can interpret the map as intended. Guided by these experiments, the cartographer settles on a design and creates the map, whether in physical or electronic form. Once finished, the map is delivered to its audience. The map reader interprets the symbols and patterns on the map to draw conclusions and perhaps to take action. By the spatial perspectives they provide, maps help shape how we view the world.
Designing a map involves bringing together a number of elements and making a large number of decisions. The elements of design fall into several broad topics, each of which has its own theory, its own research agenda, and its own best practices. That said, there are synergistic effects between these elements, meaning that the overall design process is not just working on each element one at a time, but an iterative feedback process of adjusting each to achieve the desired gestalt.
Some maps contain deliberate errors or distortions, either as propaganda or as a "watermark" to help the copyright owner identify infringement if the error appears in competitors' maps. The latter often come in the form of nonexistent, misnamed, or misspelled "trap streets". Other names and forms for this are paper towns, fictitious entries, and copyright easter eggs.
Another motive for deliberate errors is cartographic "vandalism": a mapmaker wishing to leave their mark on the work. Mount Richard, for example, was a fictitious peak on the Rocky Mountains' continental divide that appeared on a Boulder County, Colorado map in the early 1970s. It is believed to be the work of draftsman Richard Ciacci. The fiction was not discovered until two years later.
Sandy Island in New Caledonia is an example of a fictitious location that stubbornly survives, reappearing on new maps copied from older maps while being deleted from other new editions.
With the emergence of the internet and Web mapping, technologies allow for the creation and distribution of maps by people without proper cartographic training are readily available. This has led to maps that ignore cartographic conventions and are potentially misleading.
Professional and learned societies include:
Journals related to cartography, as well as GIS, GISc, include:
Mapmaking
History
Meanings | [
{
"paragraph_id": 0,
"text": "Cartography (/kɑːrˈtɒɡrəfi/; from Ancient Greek: χάρτης chartēs, 'papyrus, sheet of paper, map'; and γράφειν graphein, 'write') is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an imagined reality) can be modeled in ways that communicate spatial information effectively.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The fundamental objectives of traditional cartography are to:",
"title": ""
},
{
"paragraph_id": 2,
"text": "Modern cartography constitutes many theoretical and practical foundations of geographic information systems (GIS) and geographic information science (GISc).",
"title": ""
},
{
"paragraph_id": 3,
"text": "What is the earliest known map is a matter of some debate, both because the term \"map\" is not well-defined and because some artifacts that might be maps might actually be something else. A wall painting that might depict the ancient Anatolian city of Çatalhöyük (previously known as Catal Huyuk or Çatal Hüyük) has been dated to the late 7th millennium BCE. Among the prehistoric alpine rock carvings of Mount Bego (France) and Valcamonica (Italy), dated to the 4th millennium BCE, geometric patterns consisting of dotted rectangles and lines are widely interpreted in archaeological literature as depicting cultivated plots. Other known maps of the ancient world include the Minoan \"House of the Admiral\" wall painting from c. 1600 BCE, showing a seaside community in an oblique perspective, and an engraved map of the holy Babylonian city of Nippur, from the Kassite period (14th – 12th centuries BCE). The oldest surviving world maps are from 9th century BCE Babylonia. One shows Babylon on the Euphrates, surrounded by Assyria, Urartu and several cities, all, in turn, surrounded by a \"bitter river\" (Oceanus). Another depicts Babylon as being north of the center of the world.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "The ancient Greeks and Romans created maps from the time of Anaximander in the 6th century BCE. In the 2nd century CE, Ptolemy wrote his treatise on cartography, Geographia. This contained Ptolemy's world map – the world then known to Western society (Ecumene). As early as the 8th century, Arab scholars were translating the works of the Greek geographers into Arabic. Roads were essential in the Roman world, motivating the creation of maps, called itinerarium, that portrayed the world as experienced via the roads. The Tabula Peutingeriana is the only surviving example.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "In ancient China, geographical literature dates to the 5th century BCE. The oldest extant Chinese maps come from the State of Qin, dated back to the 4th century BCE, during the Warring States period. In the book Xin Yi Xiang Fa Yao, published in 1092 by the Chinese scientist Su Song, a star map on the equidistant cylindrical projection. Although this method of charting seems to have existed in China even before this publication and scientist, the greatest significance of the star maps by Su Song is that they represent the oldest existent star maps in printed form.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Early forms of cartography of India included depictions of the pole star and surrounding constellations. These charts may have been used for navigation.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "Mappae mundi ('maps of the world') are the medieval European maps of the world. About 1,100 of these are known to have survived: of these, some 900 are found illustrating manuscripts, and the remainder exist as stand-alone documents.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "The Arab geographer Muhammad al-Idrisi produced his medieval atlas Tabula Rogeriana (Book of Roger) in 1154. By combining the knowledge of Africa, the Indian Ocean, Europe, and the Far East (which he learned through contemporary accounts from Arab merchants and explorers) with the information he inherited from the classical geographers, he was able to write detailed descriptions of a multitude of countries. Along with the substantial text he had written, he created a world map influenced mostly by the Ptolemaic conception of the world, but with significant influence from multiple Arab geographers. It remained the most accurate world map for the next three centuries. The map was divided into seven climatic zones, with detailed descriptions of each zone. As part of this work, a smaller, circular map depicting the south on top and Arabia in the center was made. Al-Idrisi also made an estimate of the circumference of the world, accurate to within 10%.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "In the Age of Discovery, from the 15th century to the 17th century, European cartographers both copied earlier maps (some of which had been passed down for centuries) and drew their own based on explorers' observations and new surveying techniques. The invention of the magnetic compass, telescope and sextant enabled increasing accuracy. In 1492, Martin Behaim, a German cartographer and advisor to the king John II of Portugal, made the oldest extant globe of the Earth.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In 1507, Martin Waldseemüller produced a globular world map and a large 12-panel world wall map (Universalis Cosmographia) bearing the first use of the name \"America.\" Portuguese cartographer Diogo Ribero was the author of the first known planisphere with a graduated Equator (1527). Italian cartographer Battista Agnese produced at least 71 manuscript atlases of sea charts. Johannes Werner refined and promoted the Werner projection. This was an equal-area, heart-shaped world map projection (generally called a cordiform projection) that was used in the 16th and 17th centuries. Over time, other iterations of this map type arose; most notable are the sinusoidal projection and the Bonne projection. The Werner projection places its standard parallel at the North Pole; a sinusoidal projection places its standard parallel at the equator; and the Bonne projection is intermediate between the two.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "In 1569, mapmaker Gerardus Mercator first published a map based on his Mercator projection, which uses equally-spaced parallel vertical lines of longitude and parallel latitude lines spaced farther apart as they get farther away from the equator. By this construction, courses of constant bearing are conveniently represented as straight lines for navigation. The same property limits its value as a general-purpose world map because regions are shown as increasingly larger than they actually are the further from the equator they are. Mercator is also credited as the first to use the word \"atlas\" to describe a collection of maps. In the later years of his life, Mercator resolved to create his Atlas, a book filled with many maps of different regions of the world, as well as a chronological history of the world from the Earth's creation by God until 1568. He was unable to complete it to his satisfaction before he died. Still, some additions were made to the Atlas after his death, and new editions were published after his death.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "In 1570, the Brabantian cartographer Abraham Ortelius, strongly encouraged by Gillis Hooftman, created the first true modern atlas, Theatrum Orbis Terrarum. In a rare move, Ortelius credited mapmakers who contributed to the atlas, the list of which grew to 183 individuals by 1603.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "In the Renaissance, maps were used to impress viewers and establish the owner's reputation as sophisticated, educated, and worldly. Because of this, towards the end of the Renaissance, maps were displayed with equal importance of painting, sculptures, and other pieces of art. In the sixteenth century, maps were becoming increasingly available to consumers through the introduction of printmaking, with about 10% of Venetian homes having some sort of map by the late 1500s.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "There were three main functions of maps in the Renaissance:",
"title": "History"
},
{
"paragraph_id": 15,
"text": "In medieval times, written directions of how to get somewhere were more common than the use of maps. With the Renaissance, cartography began to be seen as a metaphor for power. Political leaders could lay claim to territories through the use of maps, and this was greatly aided by the religious and colonial expansion of Europe. The Holy Land and other religious places were the most commonly mapped during the Renaissance.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "In the late 1400s to the late 1500s, Rome, Florence, and Venice dominated map-making and trade. It started in Florence in the mid-to late 1400s. Map trade quickly shifted to Rome and Venice but then was overtaken by atlas makers in the late 16th century. Map publishing in Venice was completed with humanities and book publishing in mind, rather than just informational use.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "There were two main printmaking technologies in the Renaissance: woodcut and copper-plate intaglio, referring to the medium used to transfer the image onto paper.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "In woodcut, the map image is created as a relief chiseled from medium-grain hardwood. The areas intended to be printed are inked and pressed against the sheet. Being raised from the rest of the block, the map lines cause indentations in the paper that can often be felt on the back of the map. There are advantages to using relief to make maps. For one, a printmaker doesn't need a press because the maps could be developed as rubbings. Woodblock is durable enough to be used many times before defects appear. Existing printing presses can be used to create the prints rather than having to create a new one. On the other hand, it is hard to achieve fine detail with the relief technique. Inconsistencies in linework are more apparent in woodcut than in intaglio. To improve quality in the late fifteenth century, a style of relief craftsmanship developed using fine chisels to carve the wood, rather than the more commonly used knife.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "In intaglio, lines are engraved into workable metals, typically copper but sometimes brass. The engraver spreads a thin sheet of wax over the metal plate and uses ink to draw the details. Then, the engraver traces the lines with a stylus to etch them into the plate beneath. The engraver can also use styli to prick holes along the drawn lines, trace along them with colored chalk, and then engrave the map. Lines going in the same direction are carved at the same time, and then the plate is turned to carve lines going in a different direction. To print from the finished plate, ink is spread over the metal surface and scraped off such that it remains only in the etched channels. Then the plate is pressed forcibly against the paper so that the ink in the channels is transferred to the paper. The pressing is so forceful that it leaves a \"plate mark\" around the border of the map at the edge of the plate, within which the paper is depressed compared to the margins. Copper and other metals were expensive at the time, so the plate was often reused for new maps or melted down for other purposes.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "Whether woodcut or intaglio, the printed map is hung out to dry. Once dry, it is usually placed in another press to flatten the paper. Any type of paper that was available at the time could be used to print the map, but thicker paper was more durable.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "Both relief and intaglio were used about equally by the end of the fifteenth century.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "Lettering in mapmaking is important for denoting information. Fine lettering is difficult in woodcut, where it often turned out square and blocky, contrary to the stylized, rounded writing style popular in Italy at the time. To improve quality, mapmakers developed fine chisels to carve the relief. Intaglio lettering did not suffer the troubles of a coarse medium and so was able to express the looping cursive that came to be known as cancellaresca. There were custom-made reverse punches that were also used in metal engraving alongside freehand lettering.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "The first use of color in map-making cannot be narrowed down to one reason. There are arguments that color started as a way to indicate information on the map, with aesthetics coming second. There are also arguments that color was first used on maps for aesthetics but then evolved into conveying information. Either way, many maps of the Renaissance left the publisher without being colored, a practice that continued all the way into the 1800s. However, most publishers accepted orders from their patrons to have their maps or atlases colored if they wished. Because all coloring was done by hand, the patron could request simple, cheap color, or more expensive, elaborate color, even going so far as silver or gold gilding. The simplest coloring was merely outlines, such as of borders and along rivers. Wash color meant painting regions with inks or watercolors. Limning meant adding silver and gold leaf to the map to illuminate lettering, heraldic arms, or other decorative elements.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "The early modern period saw the convergence of cartographical techniques across Eurasia and the exchange of mercantile mapping techniques via the Indian Ocean.",
"title": "History"
},
{
"paragraph_id": 25,
"text": "In the early seventeenth century, the Selden map was created by a Chinese cartographer. Historians have put its date of creation around 1620, but there is debate in this regard. This map's significance draws from historical misconceptions of East Asian cartography, the main one being that East Asians did not do cartography until Europeans arrived. The map's depiction of trading routes, a compass rose, and scale bar points to the culmination of many map-making techniques incorporated into Chinese mercantile cartography.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "In 1689, representatives of the Russian tsar and Qing Dynasty met near the border town of Nerchinsk, which was near the disputed border of the two powers, in eastern Siberia. The two parties, with the Qing negotiation party bringing Jesuits as intermediaries, managed to work a treaty which placed the Amur River as the border between the Eurasian powers, and opened up trading relations between the two. This treaty's significance draws from the interaction between the two sides, and the intermediaries who were drawn from a wide variety of nationalities.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "Maps of the Enlightenment period practically universally used copper plate intaglio, having abandoned the fragile, coarse woodcut technology. Use of map projections evolved, with the double hemisphere being very common and Mercator's prestigious navigational projection gradually making more appearances.",
"title": "History"
},
{
"paragraph_id": 28,
"text": "Due to the paucity of information and the immense difficulty of surveying during the period, mapmakers frequently plagiarized material without giving credit to the original cartographer. For example, a famous map of North America known as the \"Beaver Map\" was published in 1715 by Herman Moll. This map is a close reproduction of a 1698 work by Nicolas de Fer. De Fer, in turn, had copied images that were first printed in books by Louis Hennepin, published in 1697, and François Du Creux, in 1664. By the late 18th century, mapmakers often credited the original publisher with something along the lines of, \"After [the original cartographer]\" in the map's title or cartouche.",
"title": "History"
},
{
"paragraph_id": 29,
"text": "In cartography, technology has continually changed in order to meet the demands of new generations of mapmakers and map users. The first maps were produced manually, with brushes and parchment; so they varied in quality and were limited in distribution. The advent of magnetic devices, such as the compass and much later, magnetic storage devices, allowed for the creation of far more accurate maps and the ability to store and manipulate them digitally.",
"title": "History"
},
{
"paragraph_id": 30,
"text": "Advances in mechanical devices such as the printing press, quadrant, and vernier allowed the mass production of maps and the creation of accurate reproductions from more accurate data. Hartmann Schedel was one of the first cartographers to use the printing press to make maps more widely available. Optical technology, such as the telescope, sextant, and other devices that use telescopes, allowed accurate land surveys and allowed mapmakers and navigators to find their latitude by measuring angles to the North Star at night or the Sun at noon.",
"title": "History"
},
{
"paragraph_id": 31,
"text": "Advances in photochemical technology, such as the lithographic and photochemical processes, make possible maps with fine details, which do not distort in shape and which resist moisture and wear. This also eliminated the need for engraving, which further speeded up map production.",
"title": "History"
},
{
"paragraph_id": 32,
"text": "In the 20th century, aerial photography, satellite imagery, and remote sensing provided efficient, precise methods for mapping physical features, such as coastlines, roads, buildings, watersheds, and topography. The United States Geological Survey has devised multiple new map projections, notably the Space Oblique Mercator for interpreting satellite ground tracks for mapping the surface. The use of satellites and space telescopes now allows researchers to map other planets and moons in outer space. Advances in electronic technology ushered in another revolution in cartography: ready availability of computers and peripherals such as monitors, plotters, printers, scanners (remote and document) and analytic stereo plotters, along with computer programs for visualization, image processing, spatial analysis, and database management, have democratized and greatly expanded the making of maps. The ability to superimpose spatially located variables onto existing maps has created new uses for maps and new industries to explore and exploit these potentials. See also digital raster graphic.",
"title": "History"
},
{
"paragraph_id": 33,
"text": "In the early years of the new millennium, three key technological advances transformed cartography: the removal of Selective Availability in the Global Positioning System (GPS) in May 2000, which improved locational accuracy for consumer-grade GPS receivers to within a few metres; the invention of OpenStreetMap in 2004, a global digital counter-map that allowed anyone to contribute and use new spatial data without complex licensing agreements; and the launch of Google Earth in 2005 as a development of the virtual globe EarthViewer 3D (2004), which revolutionised accessibility of accurate world maps, as well as access to satellite and aerial imagery. These advances brought more accuracy to geographical and location-based data and widened the range of applications for cartography, for example in the development of satnav devices.",
"title": "History"
},
{
"paragraph_id": 34,
"text": "Today most commercial-quality maps are made using software of three main types: CAD, GIS and specialized illustration software. Spatial information can be stored in a database, from which it can be extracted on demand. These tools lead to increasingly dynamic, interactive maps that can be manipulated digitally.",
"title": "History"
},
{
"paragraph_id": 35,
"text": "Field-rugged computers, GPS, and laser rangefinders make it possible to create maps directly from measurements made on site.",
"title": "History"
},
{
"paragraph_id": 36,
"text": "There are technical and cultural aspects to producing maps. In this sense, maps can sometimes be said to be biased. The study of bias, influence, and agenda in making a map is what comprise a map's deconstruction. A central tenet of deconstructionism is that maps have power. Other assertions are that maps are inherently biased and that we search for metaphor and rhetoric in maps.",
"title": "Deconstruction"
},
{
"paragraph_id": 37,
"text": "It is claimed that the Europeans promoted an \"epistemological\" understanding of the map as early as the 17th century. An example of this understanding is that \"[European reproduction of terrain on maps] reality can be expressed in mathematical terms; that systematic observation and measurement offer the only route to cartographic truth…\".",
"title": "Deconstruction"
},
{
"paragraph_id": 38,
"text": "A common belief is that science heads in a direction of progress, and thus leads to more accurate representations of maps. In this belief, European maps must be superior to others, which necessarily employed different map-making skills. \"There was a 'not cartography' land where lurked an army of inaccurate, heretical, subjective, valuative, and ideologically distorted images. Cartographers developed a 'sense of the other' in relation to nonconforming maps.\"",
"title": "Deconstruction"
},
{
"paragraph_id": 39,
"text": "Depictions of Africa are a common target of deconstructionism. According to deconstructionist models, cartography was used for strategic purposes associated with imperialism and as instruments and representations of power during the conquest of Africa. The depiction of Africa and the low latitudes in general on the Mercator projection has been interpreted as imperialistic and as symbolic of subjugation due to the diminished proportions of those regions compared to higher latitudes where the European powers were concentrated.",
"title": "Deconstruction"
},
{
"paragraph_id": 40,
"text": "Maps furthered imperialism and colonization of Africa in practical ways by showing basic information like roads, terrain, natural resources, settlements, and communities. Through this, maps made European commerce in Africa possible by showing potential commercial routes and made natural resource extraction possible by depicting locations of resources. Such maps also enabled military conquests and made them more efficient, and imperial nations further used them to put their conquests on display. These same maps were then used to cement territorial claims, such as at the Berlin Conference of 1884–1885.",
"title": "Deconstruction"
},
{
"paragraph_id": 41,
"text": "Before 1749, maps of the African continent had African kingdoms drawn with assumed or contrived boundaries, with unknown or unexplored areas having drawings of animals, imaginary physical geographic features, and descriptive texts. In 1748, Jean B. B. d'Anville created the first map of the African continent that had blank spaces to represent the unknown territory.",
"title": "Deconstruction"
},
{
"paragraph_id": 42,
"text": "In understanding basic maps, the field of cartography can be divided into two general categories: general cartography and thematic cartography. General cartography involves those maps that are constructed for a general audience and thus contain a variety of features. General maps exhibit many reference and location systems and often are produced in a series. For example, the 1:24,000 scale topographic maps of the United States Geological Survey (USGS) are a standard as compared to the 1:50,000 scale Canadian maps. The government of the UK produces the classic 1:50,000 (replacing the older 1 inch to 1 mile) \"Ordnance Survey\" maps of the entire UK and with a range of correlated larger- and smaller-scale maps of great detail. Many private mapping companies have also produced thematic map series.",
"title": "Map types"
},
{
"paragraph_id": 43,
"text": "Thematic cartography involves maps of specific geographic themes, oriented toward specific audiences. A couple of examples might be a dot map showing corn production in Indiana or a shaded area map of Ohio counties, divided into numerical choropleth classes. As the volume of geographic data has exploded over the last century, thematic cartography has become increasingly useful and necessary to interpret spatial, cultural and social data.",
"title": "Map types"
},
{
"paragraph_id": 44,
"text": "A third type of map is known as an \"orienteering,\" or special purpose map. This type of map falls somewhere between thematic and general maps. They combine general map elements with thematic attributes in order to design a map with a specific audience in mind. Oftentimes, the type of audience an orienteering map is made for is in a particular industry or occupation. An example of this kind of map would be a municipal utility map.",
"title": "Map types"
},
{
"paragraph_id": 45,
"text": "A topographic map is primarily concerned with the topographic description of a place, including (especially in the 20th and 21st centuries) the use of contour lines showing elevation. Terrain or relief can be shown in a variety of ways (see Cartographic relief depiction). In the present era, one of the most widespread and advanced methods used to form topographic maps is to use computer software to generate digital elevation models which show shaded relief. Before such software existed, cartographers had to draw shaded relief by hand. One cartographer who is respected as a master of hand-drawn shaded relief is the Swiss professor Eduard Imhof whose efforts in hill shading were so influential that his method became used around the world despite it being so labor-intensive.",
"title": "Map types"
},
{
"paragraph_id": 46,
"text": "A topological map is a very general type of map, the kind one might sketch on a napkin. It often disregards scale and detail in the interest of clarity of communicating specific route or relational information. Beck's London Underground map is an iconic example. Although the most widely used map of \"The Tube,\" it preserves little of reality: it varies scale constantly and abruptly, it straightens curved tracks, and it contorts directions. The only topography on it is the River Thames, letting the reader know whether a station is north or south of the river. That and the topology of station order and interchanges between train lines are all that is left of the geographic space. Yet those are all a typical passenger wishes to know, so the map fulfills its purpose.",
"title": "Map types"
},
{
"paragraph_id": 47,
"text": "Modern technology, including advances in printing, the advent of geographic information systems and graphics software, and the Internet, has vastly simplified the process of map creation and increased the palette of design options available to cartographers. This has led to a decreased focus on production skill, and an increased focus on quality design, the attempt to craft maps that are both aesthetically pleasing and practically useful for their intended purposes.",
"title": "Map design"
},
{
"paragraph_id": 48,
"text": "A map has a purpose and an audience. Its purpose may be as broad as teaching the major physical and political features of the entire world, or as narrow as convincing a neighbor to move a fence. The audience may be as broad as the general public or as narrow as a single person. Mapmakers use design principles to guide them in constructing a map that is effective for its purpose and audience.",
"title": "Map design"
},
{
"paragraph_id": 49,
"text": "The cartographic process spans many stages, starting from conceiving the need for a map and extending all the way through its consumption by an audience. Conception begins with a real or imagined environment. As the cartographer gathers information about the subject, they consider how that information is structured and how that structure should inform the map's design. Next, the cartographers experiment with generalization, symbolization, typography, and other map elements to find ways to portray the information so that the map reader can interpret the map as intended. Guided by these experiments, the cartographer settles on a design and creates the map, whether in physical or electronic form. Once finished, the map is delivered to its audience. The map reader interprets the symbols and patterns on the map to draw conclusions and perhaps to take action. By the spatial perspectives they provide, maps help shape how we view the world.",
"title": "Map design"
},
{
"paragraph_id": 50,
"text": "Designing a map involves bringing together a number of elements and making a large number of decisions. The elements of design fall into several broad topics, each of which has its own theory, its own research agenda, and its own best practices. That said, there are synergistic effects between these elements, meaning that the overall design process is not just working on each element one at a time, but an iterative feedback process of adjusting each to achieve the desired gestalt.",
"title": "Map design"
},
{
"paragraph_id": 51,
"text": "Some maps contain deliberate errors or distortions, either as propaganda or as a \"watermark\" to help the copyright owner identify infringement if the error appears in competitors' maps. The latter often come in the form of nonexistent, misnamed, or misspelled \"trap streets\". Other names and forms for this are paper towns, fictitious entries, and copyright easter eggs.",
"title": "Deliberate cartographic errors"
},
{
"paragraph_id": 52,
"text": "Another motive for deliberate errors is cartographic \"vandalism\": a mapmaker wishing to leave their mark on the work. Mount Richard, for example, was a fictitious peak on the Rocky Mountains' continental divide that appeared on a Boulder County, Colorado map in the early 1970s. It is believed to be the work of draftsman Richard Ciacci. The fiction was not discovered until two years later.",
"title": "Deliberate cartographic errors"
},
{
"paragraph_id": 53,
"text": "Sandy Island in New Caledonia is an example of a fictitious location that stubbornly survives, reappearing on new maps copied from older maps while being deleted from other new editions.",
"title": "Deliberate cartographic errors"
},
{
"paragraph_id": 54,
"text": "With the emergence of the internet and Web mapping, technologies allow for the creation and distribution of maps by people without proper cartographic training are readily available. This has led to maps that ignore cartographic conventions and are potentially misleading.",
"title": "Deliberate cartographic errors"
},
{
"paragraph_id": 55,
"text": "Professional and learned societies include:",
"title": "Professional and learned societies"
},
{
"paragraph_id": 56,
"text": "Journals related to cartography, as well as GIS, GISc, include:",
"title": "Professional and learned societies"
},
{
"paragraph_id": 57,
"text": "Mapmaking",
"title": "Further reading"
},
{
"paragraph_id": 58,
"text": "History",
"title": "Further reading"
},
{
"paragraph_id": 59,
"text": "Meanings",
"title": "Further reading"
}
] | Cartography is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality can be modeled in ways that communicate spatial information effectively. The fundamental objectives of traditional cartography are to: Set the map's agenda and select traits of the object to be mapped. This is the concern of map editing. Traits may be physical, such as roads or land masses, or may be abstract, such as toponyms or political boundaries.
Represent the terrain of the mapped object on flat media. This is the concern of map projections.
Eliminate the mapped object's characteristics that are irrelevant to the map's purpose. This is the concern of generalization.
Reduce the complexity of the characteristics that will be mapped. This is also the concern of generalization.
Orchestrate the elements of the map to best convey its message to its audience. This is the concern of map design. Modern cartography constitutes many theoretical and practical foundations of geographic information systems (GIS) and geographic information science (GISc). | 2001-12-02T05:00:49Z | 2023-12-22T08:39:28Z | [
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7,295 | Consumption | Consumption may refer to: | [
{
"paragraph_id": 0,
"text": "Consumption may refer to:",
"title": ""
}
] | Consumption may refer to: Resource consumption
Tuberculosis, an infectious disease, historically known as consumption
Consumer, receipt of energy by consuming other organisms
Consumption (economics), the purchasing of newly produced goods for current use also defined as the consuming of products
Consumption function, an economic formula
Consumption (sociology) of resources, associated with social class, identity, group membership, and age | 2023-06-19T18:28:28Z | [
"Template:Wiktionary",
"Template:Intitle",
"Template:Disambiguation"
] | https://en.wikipedia.org/wiki/Consumption |
|
7,296 | Cardiac glycoside | Cardiac glycosides are a class of organic compounds that increase the output force of the heart and decrease its rate of contractions by inhibiting the cellular sodium-potassium ATPase pump. Their beneficial medical uses are as treatments for congestive heart failure and cardiac arrhythmias; however, their relative toxicity prevents them from being widely used. Most commonly found as secondary metabolites in several plants such as foxglove plants, these compounds nevertheless have a diverse range of biochemical effects regarding cardiac cell function and have also been suggested for use in cancer treatment.
The general structure of a cardiac glycoside consists of a steroid molecule attached to a sugar (glycoside) and an R group. The steroid nucleus consists of four fused rings to which other functional groups such as methyl, hydroxyl, and aldehyde groups can be attached to influence the overall molecule's biological activity. Cardiac glycosides also vary in the groups attached at either end of the steroid. Specifically, different sugar groups attached at the sugar end of the steroid can alter the molecule's solubility and kinetics; however, the lactone moiety at the R group end only serves a structural function.
In particular, the structure of the ring attached at the R end of the molecule allows it to be classified as either a cardenolide or bufadienolide. Cardenolides differ from bufadienolides due to the presence of an "enolide," a five-membered ring with a single double bond, at the lactone end. Bufadienolides, on the other hand, contain a "dienolide," a six-membered ring with two double bonds, at the lactone end. While compounds of both groups can be used to influence the cardiac output of the heart, cardenolides are more commonly used medicinally, primarily due to the widespread availability of the plants from which they are derived.
Cardiac glycosides can be more specifically categorized based on the plant they are derived from, as in the following list. For example, cardenolides have been primarily derived from the foxglove plants Digitalis purpurea and Digitalis lanata, while bufadienolides have been derived from the venom of the cane toad Rhinella marina (formerly known as Bufo marinus), from which they receive the "bufo" portion of their name. Below is a list of organisms from which cardiac glycosides can be derived.
Cardiac glycosides affect the sodium-potassium ATPase pump in cardiac muscle cells to alter their function. Normally, these sodium-potassium pumps move potassium ions in and sodium ions out. Cardiac glycosides, however, inhibit this pump by stabilizing it in the E2-P transition state, so that sodium cannot be extruded: intracellular sodium concentration therefore increases. With regard to potassium ion movement, because both cardiac glycosides and potassium compete for binding to the ATPase pump, changes in extracellular potassium concentration can potentially lead to altered drug efficacy. Nevertheless, by carefully controlling the dosage, such adverse effects can be avoided. Continuing on with the mechanism, raised intracellular sodium levels inhibit the function of a second membrane ion exchanger, NCX, which is responsible for pumping calcium ions out of the cell and sodium ions in at a ratio of 3Na/Ca. Thus, calcium ions are also not extruded and will begin to build up inside the cell as well.
The disrupted calcium homeostasis and increased cytoplasmic calcium concentrations cause increased calcium uptake into the sarcoplasmic reticulum (SR) via the SERCA2 transporter. Raised calcium stores in the SR allow for greater calcium release on stimulation, so the myocyte can achieve faster and more powerful contraction by cross-bridge cycling. The refractory period of the AV node is increased, so cardiac glycosides also function to decrease heart rate. For example, the ingestion of digoxin leads to increased cardiac output and decreased heart rate without significant changes in blood pressure; this quality allows it to be widely used medicinally in the treatment of cardiac arrhythmias.
Cardiac glycosides were identified as senolytics: they can selectively eliminate senescent cells which are more sensitive to the ATPase-inhibiting action due to cell membrane changes.
Cardiac glycosides have long served as the main medical treatment to congestive heart failure and cardiac arrhythmia, due to their effects of increasing the force of muscle contraction while reducing heart rate. Heart failure is characterized by an inability to pump enough blood to support the body, possibly due to a decrease in the volume of the blood or its contractile force. Treatments for the condition thus focus on lowering blood pressure, so that the heart does not have to exert as much force to pump the blood, or directly increasing the heart's contractile force, so that the heart can overcome the higher blood pressure. Cardiac glycosides, such as the commonly used digoxin and digitoxin, deal with the latter, due to their positive inotropic activity. On the other hand, cardiac arrhythmia are changes in heart rate, whether faster (tachycardia) or slower (bradycardia). Medicinal treatments for this condition work primarily to counteract tachycardia or atrial fibrillation by slowing down heart rate, as done by cardiac glycosides.
Nevertheless, due to questions of toxicity and dosage, cardiac glycosides have been replaced with synthetic drugs such as ACE inhibitors and beta blockers and are no longer used as the primary medical treatment for such conditions. Depending on the severity of the condition, though, they may still be used in conjunction with other treatments.
From ancient times, humans have used cardiac-glycoside-containing plants and their crude extracts as arrow coatings, homicidal or suicidal aids, rat poisons, heart tonics, diuretics and emetics, primarily due to the toxic nature of these compounds. Thus, though cardiac glycosides have been used for their medicinal function, their toxicity must also be recognized. For example, in 2008 US poison centers reported 2,632 cases of digoxin toxicity, and 17 cases of digoxin-related deaths. Because cardiac glycosides affect the cardiovascular, neurologic, and gastrointestinal systems, these three systems can be used to determine the effects of toxicity. The effect of these compounds on the cardiovascular system presents a reason for concern, as they can directly affect the function of the heart through their inotropic and chronotropic effects. In terms of inotropic activity, excessive cardiac glycoside dosage results in cardiac contractions with greater force, as further calcium is released from the SR of cardiac muscle cells. Toxicity also results in changes to heart chronotropic activity, resulting in multiple kinds of dysrhythmia and potentially fatal ventricular tachycardia. These dysrhythmias are an effect of an influx of sodium and decrease of resting membrane potential threshold in cardiac muscle cells. When taken beyond a narrow dosage range specific to each particular cardiac glycoside, these compounds can rapidly become dangerous. In sum, they interfere with fundamental processes that regulate membrane potential. They are toxic to the heart, the brain, and the gut at doses that are not difficult to reach. In the heart, the most common negative effect is premature ventricular contraction. | [
{
"paragraph_id": 0,
"text": "Cardiac glycosides are a class of organic compounds that increase the output force of the heart and decrease its rate of contractions by inhibiting the cellular sodium-potassium ATPase pump. Their beneficial medical uses are as treatments for congestive heart failure and cardiac arrhythmias; however, their relative toxicity prevents them from being widely used. Most commonly found as secondary metabolites in several plants such as foxglove plants, these compounds nevertheless have a diverse range of biochemical effects regarding cardiac cell function and have also been suggested for use in cancer treatment.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The general structure of a cardiac glycoside consists of a steroid molecule attached to a sugar (glycoside) and an R group. The steroid nucleus consists of four fused rings to which other functional groups such as methyl, hydroxyl, and aldehyde groups can be attached to influence the overall molecule's biological activity. Cardiac glycosides also vary in the groups attached at either end of the steroid. Specifically, different sugar groups attached at the sugar end of the steroid can alter the molecule's solubility and kinetics; however, the lactone moiety at the R group end only serves a structural function.",
"title": "Classification"
},
{
"paragraph_id": 2,
"text": "In particular, the structure of the ring attached at the R end of the molecule allows it to be classified as either a cardenolide or bufadienolide. Cardenolides differ from bufadienolides due to the presence of an \"enolide,\" a five-membered ring with a single double bond, at the lactone end. Bufadienolides, on the other hand, contain a \"dienolide,\" a six-membered ring with two double bonds, at the lactone end. While compounds of both groups can be used to influence the cardiac output of the heart, cardenolides are more commonly used medicinally, primarily due to the widespread availability of the plants from which they are derived.",
"title": "Classification"
},
{
"paragraph_id": 3,
"text": "Cardiac glycosides can be more specifically categorized based on the plant they are derived from, as in the following list. For example, cardenolides have been primarily derived from the foxglove plants Digitalis purpurea and Digitalis lanata, while bufadienolides have been derived from the venom of the cane toad Rhinella marina (formerly known as Bufo marinus), from which they receive the \"bufo\" portion of their name. Below is a list of organisms from which cardiac glycosides can be derived.",
"title": "Classification"
},
{
"paragraph_id": 4,
"text": "Cardiac glycosides affect the sodium-potassium ATPase pump in cardiac muscle cells to alter their function. Normally, these sodium-potassium pumps move potassium ions in and sodium ions out. Cardiac glycosides, however, inhibit this pump by stabilizing it in the E2-P transition state, so that sodium cannot be extruded: intracellular sodium concentration therefore increases. With regard to potassium ion movement, because both cardiac glycosides and potassium compete for binding to the ATPase pump, changes in extracellular potassium concentration can potentially lead to altered drug efficacy. Nevertheless, by carefully controlling the dosage, such adverse effects can be avoided. Continuing on with the mechanism, raised intracellular sodium levels inhibit the function of a second membrane ion exchanger, NCX, which is responsible for pumping calcium ions out of the cell and sodium ions in at a ratio of 3Na/Ca. Thus, calcium ions are also not extruded and will begin to build up inside the cell as well.",
"title": "Mechanism of action"
},
{
"paragraph_id": 5,
"text": "The disrupted calcium homeostasis and increased cytoplasmic calcium concentrations cause increased calcium uptake into the sarcoplasmic reticulum (SR) via the SERCA2 transporter. Raised calcium stores in the SR allow for greater calcium release on stimulation, so the myocyte can achieve faster and more powerful contraction by cross-bridge cycling. The refractory period of the AV node is increased, so cardiac glycosides also function to decrease heart rate. For example, the ingestion of digoxin leads to increased cardiac output and decreased heart rate without significant changes in blood pressure; this quality allows it to be widely used medicinally in the treatment of cardiac arrhythmias.",
"title": "Mechanism of action"
},
{
"paragraph_id": 6,
"text": "Cardiac glycosides were identified as senolytics: they can selectively eliminate senescent cells which are more sensitive to the ATPase-inhibiting action due to cell membrane changes.",
"title": "Mechanism of action"
},
{
"paragraph_id": 7,
"text": "Cardiac glycosides have long served as the main medical treatment to congestive heart failure and cardiac arrhythmia, due to their effects of increasing the force of muscle contraction while reducing heart rate. Heart failure is characterized by an inability to pump enough blood to support the body, possibly due to a decrease in the volume of the blood or its contractile force. Treatments for the condition thus focus on lowering blood pressure, so that the heart does not have to exert as much force to pump the blood, or directly increasing the heart's contractile force, so that the heart can overcome the higher blood pressure. Cardiac glycosides, such as the commonly used digoxin and digitoxin, deal with the latter, due to their positive inotropic activity. On the other hand, cardiac arrhythmia are changes in heart rate, whether faster (tachycardia) or slower (bradycardia). Medicinal treatments for this condition work primarily to counteract tachycardia or atrial fibrillation by slowing down heart rate, as done by cardiac glycosides.",
"title": "Clinical significance"
},
{
"paragraph_id": 8,
"text": "Nevertheless, due to questions of toxicity and dosage, cardiac glycosides have been replaced with synthetic drugs such as ACE inhibitors and beta blockers and are no longer used as the primary medical treatment for such conditions. Depending on the severity of the condition, though, they may still be used in conjunction with other treatments.",
"title": "Clinical significance"
},
{
"paragraph_id": 9,
"text": "From ancient times, humans have used cardiac-glycoside-containing plants and their crude extracts as arrow coatings, homicidal or suicidal aids, rat poisons, heart tonics, diuretics and emetics, primarily due to the toxic nature of these compounds. Thus, though cardiac glycosides have been used for their medicinal function, their toxicity must also be recognized. For example, in 2008 US poison centers reported 2,632 cases of digoxin toxicity, and 17 cases of digoxin-related deaths. Because cardiac glycosides affect the cardiovascular, neurologic, and gastrointestinal systems, these three systems can be used to determine the effects of toxicity. The effect of these compounds on the cardiovascular system presents a reason for concern, as they can directly affect the function of the heart through their inotropic and chronotropic effects. In terms of inotropic activity, excessive cardiac glycoside dosage results in cardiac contractions with greater force, as further calcium is released from the SR of cardiac muscle cells. Toxicity also results in changes to heart chronotropic activity, resulting in multiple kinds of dysrhythmia and potentially fatal ventricular tachycardia. These dysrhythmias are an effect of an influx of sodium and decrease of resting membrane potential threshold in cardiac muscle cells. When taken beyond a narrow dosage range specific to each particular cardiac glycoside, these compounds can rapidly become dangerous. In sum, they interfere with fundamental processes that regulate membrane potential. They are toxic to the heart, the brain, and the gut at doses that are not difficult to reach. In the heart, the most common negative effect is premature ventricular contraction.",
"title": "Toxicity"
}
] | Cardiac glycosides are a class of organic compounds that increase the output force of the heart and decrease its rate of contractions by inhibiting the cellular sodium-potassium ATPase pump. Their beneficial medical uses are as treatments for congestive heart failure and cardiac arrhythmias; however, their relative toxicity prevents them from being widely used. Most commonly found as secondary metabolites in several plants such as foxglove plants, these compounds nevertheless have a diverse range of biochemical effects regarding cardiac cell function and have also been suggested for use in cancer treatment. | 2002-02-25T15:51:15Z | 2023-12-07T04:04:43Z | [
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7,299 | Colonialism | Colonialism is the establishment and maintenance of one group of people as superior to other peoples and areas, often for imperialist controle and exploitation, and through a range of practices and relations of colonization, installing coloniality and possibly colonies. That said there is no clear definition of colonialism and definitions may vary depending on the use of the term and context.
Colonialism is etymologically rooted in the Latin word "Colonus", which was used to describe tenant farmers in the Roman Empire. The coloni sharecroppers started as tenants of landlords, but as the system evolved they became permanently indebted to the landowner and trapped in servitude.
Colonialism has existed since ancient times. In the modern period, the concept is most strongly associated with European colonialism, starting in the 15th century and extending to the mid-1900s. At first, conquest followed policies of mercantilism, aiming to strengthen the home-country economy, so agreements usually restricted the colony to trading only with the metropole (mother country). By the mid-19th century, many empires gave up mercantilism and trade restrictions and adopted the principle of free trade, with few restrictions or tariffs.
Missionaries were active in practically all of the European-controlled colonies because the metropoles were Christian. Historian Philip Hoffman calculated that by 1800, before the Industrial Revolution, Europeans already controlled at least 35% of the globe, and by 1914, they had gained control of 84% of the globe. In the aftermath of World War II colonial powers retreated between 1945 and 1975; over which time nearly all colonies gained independence, entering into changed colonial, so-called postcolonial and neocolonialist relations.
Collins English Dictionary defines colonialism as "the practice by which a powerful country directly controls less powerful countries and uses their resources to increase its own power and wealth". Webster's Encyclopedic Dictionary defines colonialism as "the system or policy of a nation seeking to extend or retain its authority over other people or territories". The Merriam-Webster Dictionary offers four definitions, including "something characteristic of a colony" and "control by one power over a dependent area or people".
The Stanford Encyclopedia of Philosophy uses the term "to describe the process of European settlement and political control over the rest of the world, including the Americas, Australia, and parts of Africa and Asia". It discusses the distinction between colonialism, imperialism and conquest and states that "[t]he difficulty of defining colonialism stems from the fact that the term is often used as a synonym for imperialism. Both colonialism and imperialism were forms of conquest that were expected to benefit Europe economically and strategically," and continues "given the difficulty of consistently distinguishing between the two terms, this entry will use colonialism broadly to refer to the project of European political domination from the sixteenth to the twentieth centuries that ended with the national liberation movements of the 1960s".
In his preface to Jürgen Osterhammel's Colonialism: A Theoretical Overview, Roger Tignor says "For Osterhammel, the essence of colonialism is the existence of colonies, which are by definition governed differently from other territories such as protectorates or informal spheres of influence." In the book, Osterhammel asks, "How can 'colonialism' be defined independently from 'colony?'" He settles on a three-sentence definition:
Colonialism is a relationship between an indigenous (or forcibly imported) majority and a minority of foreign invaders. The fundamental decisions affecting the lives of the colonised people are made and implemented by the colonial rulers in pursuit of interests that are often defined in a distant metropolis. Rejecting cultural compromises with the colonised population, the colonisers are convinced of their own superiority and their ordained mandate to rule.
The Times once quipped that there were three types of colonial empire: "The English, which consists in making colonies with colonists; the German, which collects colonists without colonies; the French, which sets up colonies without colonists." Modern studies of colonialism have often distinguished between various overlapping categories of colonialism, broadly classified into four types: settler colonialism, exploitation colonialism, surrogate colonialism, and internal colonialism. Some historians have identified other forms of colonialism, including national and trade forms.
When colonists settled in pre-populated areas, the societies and cultures of the people in those areas permanently changed. Colonial practices directly and indirectly forced the colonized peoples to abandon their traditional cultures. For example, European colonizers in the United States implemented the residential schools program to force native children to assimilate into the hegemonic culture.
Cultural colonialism gave rise to culturally and ethnically mixed populations such as the mestizos of the Americas, as well as racially divided populations such as those found in French Algeria or in Southern Rhodesia. In fact, everywhere where colonial powers established a consistent and continued presence, hybrid communities existed.
Notable examples in Asia include the Anglo-Burmese, Anglo-Indian, Burgher, Eurasian Singaporean, Filipino mestizo, Kristang, and Macanese peoples. In the Dutch East Indies (later Indonesia) the vast majority of "Dutch" settlers were in fact Eurasians known as Indo-Europeans, formally belonging to the European legal class in the colony.
Omani Empire
Activity that could be called colonialism has a long history, starting at least as early as the ancient Egyptians. Phoenicians, Greeks, and Romans founded colonies in antiquity. Phoenicia had an enterprising maritime trading-culture that spread across the Mediterranean from 1550 BC to 300 BC; later the Persian Empire and various Greek city-states continued on this line of setting up colonies. The Romans would soon follow, setting up coloniae throughout the Mediterranean, in North Africa, and in Western Asia.
Beginning in the 7th century, Arabs colonized a substantial portion of the Middle East, North Africa, and parts of Asia and Europe. From the 9th century Vikings (Norsemen) such as Leif Erikson established colonies in Britain, Ireland, Iceland, Greenland, North America, present-day Russia and Ukraine, France (Normandy) and Sicily. In the 9th century a new wave of Mediterranean colonisation began, with competitors such as the Venetians, Genovese and Amalfians infiltrating the wealthy previously Byzantine or Eastern Roman islands and lands. European Crusaders set up colonial regimes in Outremer (in the Levant, 1097–1291) and in the Baltic littoral (12th century onwards). Venice began to dominate Dalmatia and reached its greatest nominal colonial extent at the conclusion of the Fourth Crusade in 1204, with the declaration of the acquisition of three octaves of the Byzantine Empire.
The European early modern period began with the Turkish colonization of Anatolia. After the Ottoman Empire colonialised Constantinople in 1453, the sea routes discovered by Portuguese Prince Henry the Navigator (1394-1460) became central to trade, and helped fuel the Age of Discovery.
The Crown of Castile encountered the Americas in 1492 through sea travel and built trading posts or conquered large extents of land. The Treaty of Tordesillas divided the areas of these "new" lands between the Spanish Empire and the Portuguese Empire in 1494.
The 17th century saw the birth of the Dutch Empire and French colonial empire, as well as the English overseas possessions, which later became the British Empire. It also saw the establishment of Danish overseas colonies and Swedish overseas colonies.
A first wave of separatism started with the American Revolutionary War (1775-1783), initiating the Rise of the "Second" British Empire (1783-1815). The Spanish Empire largely collapsed in the Americas with the Spanish American wars of independence (1808-1833). Empire-builders established several new colonies after this time, including in the German colonial empire and Belgian colonial empire. Starting with the end of the French Revolution European authors such as Johann Gottfried Herder, August von Kotzebue, and Heinrich von Kleist prolifically published so as to conjure up sympathy for the oppressed native peoples and the slaves of the new world, thereby starting the idealization of native humans.
The Habsburg monarchy, the Russian Empire, and the Ottoman Empire existed at the same time but did not expand over oceans. Rather, these empires expanded through the conquest of neighbouring territories. There was, though, some Russian colonization of North America across the Bering Strait. From the 1860s onwards the Empire of Japan modelled itself on European colonial empires and expanded its territories in the Pacific and on the Asian mainland. The Empire of Brazil fought for hegemony in South America. The United States gained overseas territories after the 1898 Spanish–American War, hence, the coining of the term "American imperialism".
In the late 19th century many European powers became involved in the Scramble for Africa.
The world's colonial population at the outbreak of the First World War (1914) – a high point for colonialism – totalled about 560 million people, of whom 70% lived in British possessions, 10% in French possessions, 9% in Dutch possessions, 4% in Japanese possessions, 2% in German possessions, 2% in American possessions, 3% in Portuguese possessions, 1% in Belgian possessions and 0.5% in Italian possessions. The domestic domains of the colonial powers had a total population of about 370 million people. Outside Europe, few areas had remained without coming under formal colonial tutorship – and even Siam, China, Japan, Nepal, Afghanistan, Persia, and Abyssinia had felt varying degrees of Western colonial-style influence – concessions, unequal treaties, extraterritoriality and the like.
Asking whether colonies paid, economic historian Grover Clark (1891–1938) argues an emphatic "No!" He reports that in every case the support cost, especially the military system necessary to support and defend colonies, outran the total trade they produced. Apart from the British Empire, they did not provide favoured destinations for the immigration of surplus metropole populations. The question of whether colonies paid is a complicated one when recognizing the multiplicity of interests involved. In some cases colonial powers paid a lot in military costs while private investors pocketed the benefits. In other cases the colonial powers managed to move the burden of administrative costs to the colonies themselves by imposing taxes.
After World War I (1914–1918), the victorious Allies divided up the German colonial empire and much of the Ottoman Empire between themselves as League of Nations mandates, grouping these territories into three classes according to how quickly it was deemed that they could prepare for independence. The empires of Russia and Austria collapsed in 1917–1918. Nazi Germany set up short-lived colonial systems (Reichskommissariate, Generalgouvernement) in Eastern Europe in the early 1940s.
In the aftermath of World War II (1939–1945), decolonisation progressed rapidly. The tumultuous upheaval of the war significantly weakened the major colonial powers, and they quickly lost control of colonies such as Singapore, India, and Libya. In addition, the United Nations shows support for decolonisation in its 1945 charter. In 1960, the UN issued the Declaration on the Granting of Independence to Colonial Countries and Peoples, which affirmed its stance (though notably, colonial empires such as France, Spain, the United Kingdom, and the United States abstained).
The word "neocolonialism" originated from Jean-Paul Sartre in 1956, to refer to a variety of contexts since the decolonisation that took place after World War II. Generally it does not refer to a type of direct colonisation – rather to colonialism or colonial-style exploitation by other means. Specifically, neocolonialism may refer to the theory that former or existing economic relationships, such as the General Agreement on Tariffs and Trade and the Central American Free Trade Agreement, or the operations of companies (such as Royal Dutch Shell in Nigeria and Brunei) fostered by former colonial powers were or are used to maintain control of former colonies and dependencies after the colonial independence movements of the post–World War II period.
The term "neocolonialism" became popular in ex-colonies in the late 20th century.
The impacts of colonisation are immense and pervasive. Various effects, both immediate and protracted, include the spread of virulent diseases, unequal social relations, detribalization, exploitation, enslavement, medical advances, the creation of new institutions, abolitionism, improved infrastructure, and technological progress. Colonial practices also spur the spread of conquerers' languages, literature and cultural institutions, while endangering or obliterating those of Indigenous peoples. The cultures of the colonised peoples can also have a powerful influence on the imperial country.
With respect to international borders, Britain and France traced close to 40% of the entire length of the world's international boundaries.
Economic expansion, sometimes described as the colonial surplus, has accompanied imperial expansion since ancient times. Greek trade networks spread throughout the Mediterranean region while Roman trade expanded with the primary goal of directing tribute from the colonised areas towards the Roman metropole. According to Strabo, by the time of emperor Augustus, up to 120 Roman ships would set sail every year from Myos Hormos in Roman Egypt to India. With the development of trade routes under the Ottoman Empire,
Gujari Hindus, Syrian Muslims, Jews, Armenians, Christians from south and central Europe operated trading routes that supplied Persian and Arab horses to the armies of all three empires, Mocha coffee to Delhi and Belgrade, Persian silk to India and Istanbul.
Aztec civilisation developed into an extensive empire that, much like the Roman Empire, had the goal of exacting tribute from the conquered colonial areas. For the Aztecs, a significant tribute was the acquisition of sacrificial victims for their religious rituals.
On the other hand, European colonial empires sometimes attempted to channel, restrict and impede trade involving their colonies, funneling activity through the metropole and taxing accordingly.
Despite the general trend of economic expansion, the economic performance of former European colonies varies significantly. In "Institutions as a Fundamental Cause of Long-run Growth", economists Daron Acemoglu, Simon Johnson and James A. Robinson compare the economic influences of the European colonists on different colonies and study what could explain the huge discrepancies in previous European colonies, for example, between West African colonies like Sierra Leone and Hong Kong and Singapore.
According to the paper, economic institutions are the determinant of the colonial success because they determine their financial performance and order for the distribution of resources. At the same time, these institutions are also consequences of political institutions – especially how de facto and de jure political power is allocated. To explain the different colonial cases, we thus need to look first into the political institutions that shaped the economic institutions.
For example, one interesting observation is "the Reversal of Fortune" – the less developed civilisations in 1500, like North America, Australia, and New Zealand, are now much richer than those countries who used to be in the prosperous civilisations in 1500 before the colonists came, like the Mughals in India and the Incas in the Americas. One explanation offered by the paper focuses on the political institutions of the various colonies: it was less likely for European colonists to introduce economic institutions where they could benefit quickly from the extraction of resources in the area. Therefore, given a more developed civilisation and denser population, European colonists would rather keep the existing economic systems than introduce an entirely new system; while in places with little to extract, European colonists would rather establish new economic institutions to protect their interests. Political institutions thus gave rise to different types of economic systems, which determined the colonial economic performance.
European colonisation and development also changed gendered systems of power already in place around the world. In many pre-colonialist areas, women maintained power, prestige, or authority through reproductive or agricultural control. For example, in certain parts of sub-Saharan Africa women maintained farmland in which they had usage rights. While men would make political and communal decisions for a community, the women would control the village's food supply or their individual family's land. This allowed women to achieve power and autonomy, even in patrilineal and patriarchal societies.
Through the rise of European colonialism came a large push for development and industrialisation of most economic systems. When working to improve productivity, Europeans focused mostly on male workers. Foreign aid arrived in the form of loans, land, credit, and tools to speed up development, but were only allocated to men. In a more European fashion, women were expected to serve on a more domestic level. The result was a technologic, economic, and class-based gender gap that widened over time.
Within a colony, the presence of extractive colonial institutions in a given area has been found have effects on the modern day economic development, institutions and infrastructure of these areas.
European nations entered their imperial projects with the goal of enriching the European metropoles. Exploitation of non-Europeans and of other Europeans to support imperial goals was acceptable to the colonisers. Two outgrowths of this imperial agenda were the extension of slavery and indentured servitude. In the 17th century, nearly two-thirds of English settlers came to North America as indentured servants.
European slave traders brought large numbers of African slaves to the Americas by sail. Spain and Portugal had brought African slaves to work in African colonies such as Cape Verde and São Tomé and Príncipe, and then in Latin America, by the 16th century. The British, French and Dutch joined in the slave trade in subsequent centuries. The European colonial system took approximately 11 million Africans to the Caribbean and to North and South America as slaves.
Abolitionists in Europe and Americas protested the inhumane treatment of African slaves, which led to the elimination of the slave trade (and later, of most forms of slavery) by the late 19th century. One (disputed) school of thought points to the role of abolitionism in the American Revolution: while the British colonial metropole started to move towards outlawing slavery, slave-owning elites in the Thirteen Colonies saw this as one of the reasons to fight for their post-colonial independence and for the right to develop and continue a largely slave-based economy.
British colonising activity in New Zealand from the early 19th century played a part in ending slave-taking and slave-keeping among the indigenous Māori. On the other hand, British colonial administration in Southern Africa, when it officially abolished slavery in the 1830s, caused rifts in society which arguably perpetuated slavery in the Boer Republics and fed into the philosophy of apartheid.
The labour shortages that resulted from abolition inspired European colonisers in Queensland, British Guaiana and Fiji (for example) to develop new sources of labour, re-adopting a system of indentured servitude. Indentured servants consented to a contract with the European colonisers. Under their contract, the servant would work for an employer for a term of at least a year, while the employer agreed to pay for the servant's voyage to the colony, possibly pay for the return to the country of origin, and pay the employee a wage as well. The employees became "indentured" to the employer because they owed a debt back to the employer for their travel expense to the colony, which they were expected to pay through their wages. In practice, indentured servants were exploited through terrible working conditions and burdensome debts imposed by the employers, with whom the servants had no means of negotiating the debt once they arrived in the colony.
India and China were the largest source of indentured servants during the colonial era. Indentured servants from India travelled to British colonies in Asia, Africa and the Caribbean, and also to French and Portuguese colonies, while Chinese servants travelled to British and Dutch colonies. Between 1830 and 1930, around 30 million indentured servants migrated from India, and 24 million returned to India. China sent more indentured servants to European colonies, and around the same proportion returned to China.
Following the Scramble for Africa, an early but secondary focus for most colonial regimes was the suppression of slavery and the slave trade. By the end of the colonial period they were mostly successful in this aim, though slavery persists in Africa and in the world at large with much the same practices of de facto servility despite legislative prohibition.
Conquering forces have throughout history applied innovation in order to gain an advantage over the armies of the people they aim to conquer. Greeks developed the phalanx system, which enabled their military units to present themselves to their enemies as a wall, with foot soldiers using shields to cover one another during their advance on the battlefield. Under Philip II of Macedon, they were able to organise thousands of soldiers into a formidable battle force, bringing together carefully trained infantry and cavalry regiments. Alexander the Great exploited this military foundation further during his conquests.
The Spanish Empire held a major advantage over Mesoamerican warriors through the use of weapons made of stronger metal, predominantly iron, which was able to shatter the blades of axes used by the Aztec civilisation and others. The use of gunpowder weapons cemented the European military advantage over the peoples they sought to subjugate in the Americas and elsewhere.
The populations of some colonial territories, such as Canada, enjoyed relative peace and prosperity as part of a European power, at least among the majority. Minority populations such as First Nations peoples and French-Canadians experienced marginalisation and resented colonial practices. Francophone residents of Quebec, for example, were vocal in opposing conscription into the armed services to fight on behalf of Britain during World War I, resulting in the Conscription crisis of 1917. Other European colonies had much more pronounced conflict between European settlers and the local population. Rebellions broke out in the later decades of the imperial era, such as India's Sepoy Rebellion of 1857.
The territorial boundaries imposed by European colonisers, notably in central Africa and South Asia, defied the existing boundaries of native populations that had previously interacted little with one another. European colonisers disregarded native political and cultural animosities, imposing peace upon people under their military control. Native populations were often relocated at the will of the colonial administrators.
The Partition of British India in August 1947 led to the Independence of India and the creation of Pakistan. These events also caused much bloodshed at the time of the migration of immigrants from the two countries. Muslims from India and Hindus and Sikhs from Pakistan migrated to the respective countries they sought independence for.
In a reversal of the migration patterns experienced during the modern colonial era, post-independence era migration followed a route back towards the imperial country. In some cases, this was a movement of settlers of European origin returning to the land of their birth, or to an ancestral birthplace. 900,000 French colonists (known as the Pied-Noirs) resettled in France following Algeria's independence in 1962. A significant number of these migrants were also of Algerian descent. 800,000 people of Portuguese origin migrated to Portugal after the independence of former colonies in Africa between 1974 and 1979; 300,000 settlers of Dutch origin migrated to the Netherlands from the Dutch West Indies after Dutch military control of the colony ended.
After WWII 300,000 Dutchmen from the Dutch East Indies, of which the majority were people of Eurasian descent called Indo Europeans, repatriated to the Netherlands. A significant number later migrated to the US, Canada, Australia and New Zealand.
Global travel and migration in general developed at an increasingly brisk pace throughout the era of European colonial expansion. Citizens of the former colonies of European countries may have a privileged status in some respects with regard to immigration rights when settling in the former European imperial nation. For example, rights to dual citizenship may be generous, or larger immigrant quotas may be extended to former colonies.
In some cases, the former European imperial nations continue to foster close political and economic ties with former colonies. The Commonwealth of Nations is an organisation that promotes cooperation between and among Britain and its former colonies, the Commonwealth members. A similar organisation exists for former colonies of France, the Francophonie; the Community of Portuguese Language Countries plays a similar role for former Portuguese colonies, and the Dutch Language Union is the equivalent for former colonies of the Netherlands.
Migration from former colonies has proven to be problematic for European countries, where the majority population may express hostility to ethnic minorities who have immigrated from former colonies. Cultural and religious conflict have often erupted in France in recent decades, between immigrants from the Maghreb countries of north Africa and the majority population of France. Nonetheless, immigration has changed the ethnic composition of France; by the 1980s, 25% of the total population of "inner Paris" and 14% of the metropolitan region were of foreign origin, mainly Algerian.
Encounters between explorers and populations in the rest of the world often introduced new diseases, which sometimes caused local epidemics of extraordinary virulence. For example, smallpox, measles, malaria, yellow fever, and others were unknown in pre-Columbian America.
Half the native population of Hispaniola in 1518 was killed by smallpox. Smallpox also ravaged Mexico in the 1520s, killing 150,000 in Tenochtitlan alone, including the emperor, and Peru in the 1530s, aiding the European conquerors. Measles killed a further two million Mexican natives in the 17th century. In 1618–1619, smallpox wiped out 90% of the Massachusetts Bay Native Americans. Smallpox epidemics in 1780–1782 and 1837–1838 brought devastation and drastic depopulation among the Plains Indians. Some believe that the death of up to 95% of the Native American population of the New World was caused by Old World diseases. Over the centuries, the Europeans had developed high degrees of immunity to these diseases, while the indigenous peoples had no time to build such immunity.
Smallpox decimated the native population of Australia, killing around 50% of indigenous Australians in the early years of British colonisation. It also killed many New Zealand Māori. As late as 1848–49, as many as 40,000 out of 150,000 Hawaiians are estimated to have died of measles, whooping cough and influenza. Introduced diseases, notably smallpox, nearly wiped out the native population of Easter Island. In 1875, measles killed over 40,000 Fijians, approximately one-third of the population. The Ainu population decreased drastically in the 19th century, due in large part to infectious diseases brought by Japanese settlers pouring into Hokkaido.
Conversely, researchers have hypothesised that a precursor to syphilis may have been carried from the New World to Europe after Columbus's voyages. The findings suggested Europeans could have carried the nonvenereal tropical bacteria home, where the organisms may have mutated into a more deadly form in the different conditions of Europe. The disease was more frequently fatal than it is today; syphilis was a major killer in Europe during the Renaissance. The first cholera pandemic began in Bengal, then spread across India by 1820. Ten thousand British troops and countless Indians died during this pandemic. Between 1736 and 1834 only some 10% of East India Company's officers survived to take the final voyage home. Waldemar Haffkine, who mainly worked in India, who developed and used vaccines against cholera and bubonic plague in the 1890s, is considered the first microbiologist.
According to a 2021 study by Jörg Baten and Laura Maravall on the anthropometric influence of colonialism on Africans, the average height of Africans decreased by 1.1 centimetres upon colonization and later recovered and increased overall during colonial rule. The authors attributed the decrease to diseases, such as malaria and sleeping sickness, forced labor during the early decades of colonial rule, conflicts, land grabbing, and widespread cattle deaths from the rinderpest viral disease.
As early as 1803, the Spanish Crown organised a mission (the Balmis expedition) to transport the smallpox vaccine to the Spanish colonies, and establish mass vaccination programs there. By 1832, the federal government of the United States established a smallpox vaccination program for Native Americans. Under the direction of Mountstuart Elphinstone a program was launched to propagate smallpox vaccination in India. From the beginning of the 20th century onwards, the elimination or control of disease in tropical countries became a driving force for all colonial powers. The sleeping sickness epidemic in Africa was arrested due to mobile teams systematically screening millions of people at risk. In the 20th century, the world saw the biggest increase in its population in human history due to lessening of the mortality rate in many countries due to medical advances. The world population has grown from 1.6 billion in 1900 to over seven billion today.
Colonial botany refers to the body of works concerning the study, cultivation, marketing and naming of the new plants that were acquired or traded during the age of European colonialism. Notable examples of these plants included sugar, nutmeg, tobacco, cloves, cinnamon, Peruvian bark, peppers, Sassafras albidum, and tea. This work was a large part of securing financing for colonial ambitions, supporting European expansion and ensuring the profitability of such endeavors. Vasco de Gama and Christopher Columbus were seeking to establish routes to trade spices, dyes and silk from the Moluccas, India and China by sea that would be independent of the established routes controlled by Venetian and Middle Eastern merchants. Naturalists like Hendrik van Rheede, Georg Eberhard Rumphius, and Jacobus Bontius compiled data about eastern plants on behalf of the Europeans. Though Sweden did not possess an extensive colonial network, botanical research based on Carl Linnaeus identified and developed techniques to grow cinnamon, tea and rice locally as an alternative to costly imports.
Settlers acted as the link between indigenous populations and the imperial hegemony, thus bridging the geographical, ideological and commercial gap between the colonisers and colonised. While the extent in which geography as an academic study is implicated in colonialism is contentious, geographical tools such as cartography, shipbuilding, navigation, mining and agricultural productivity were instrumental in European colonial expansion. Colonisers' awareness of the Earth's surface and abundance of practical skills provided colonisers with a knowledge that, in turn, created power.
Anne Godlewska and Neil Smith argue that "empire was 'quintessentially a geographical project'". Historical geographical theories such as environmental determinism legitimised colonialism by positing the view that some parts of the world were underdeveloped, which created notions of skewed evolution. Geographers such as Ellen Churchill Semple and Ellsworth Huntington put forward the notion that northern climates bred vigour and intelligence as opposed to those indigenous to tropical climates (See The Tropics) viz a viz a combination of environmental determinism and Social Darwinism in their approach.
Political geographers also maintain that colonial behaviour was reinforced by the physical mapping of the world, therefore creating a visual separation between "them" and "us". Geographers are primarily focused on the spaces of colonialism and imperialism; more specifically, the material and symbolic appropriation of space enabling colonialism.
Maps played an extensive role in colonialism, as Bassett would put it "by providing geographical information in a convenient and standardised format, cartographers helped open West Africa to European conquest, commerce, and colonisation". Because the relationship between colonialism and geography was not scientifically objective, cartography was often manipulated during the colonial era. Social norms and values had an effect on the constructing of maps. During colonialism map-makers used rhetoric in their formation of boundaries and in their art. The rhetoric favoured the view of the conquering Europeans; this is evident in the fact that any map created by a non-European was instantly regarded as inaccurate. Furthermore, European cartographers were required to follow a set of rules which led to ethnocentrism; portraying one's own ethnicity in the centre of the map. As J.B. Harley put it, "The steps in making a map – selection, omission, simplification, classification, the creation of hierarchies, and 'symbolisation' – are all inherently rhetorical."
A common practice by the European cartographers of the time was to map unexplored areas as "blank spaces". This influenced the colonial powers as it sparked competition amongst them to explore and colonise these regions. Imperialists aggressively and passionately looked forward to filling these spaces for the glory of their respective countries. The Dictionary of Human Geography notes that cartography was used to empty 'undiscovered' lands of their Indigenous meaning and bring them into spatial existence via the imposition of "Western place-names and borders, [therefore] priming 'virgin' (putatively empty land, 'wilderness') for colonisation (thus sexualising colonial landscapes as domains of male penetration), reconfiguring alien space as absolute, quantifiable and separable (as property)."
David Livingstone stresses "that geography has meant different things at different times and in different places" and that we should keep an open mind in regards to the relationship between geography and colonialism instead of identifying boundaries. Geography as a discipline was not and is not an objective science, Painter and Jeffrey argue, rather it is based on assumptions about the physical world. Comparison of exogeographical representations of ostensibly tropical environments in science fiction art support this conjecture, finding the notion of the tropics to be an artificial collection of ideas and beliefs that are independent of geography.
The term "imperialism" is often conflated with "colonialism"; however, many scholars have argued that each has its own distinct definition. Imperialism and colonialism have been used in order to describe one's influence upon a person or group of people. Robert Young writes that imperialism operates from the centre as a state policy and is developed for ideological as well as financial reasons, while colonialism is simply the development for settlement or commercial intentions; however, colonialism still includes invasion. Colonialism in modern usage also tends to imply a degree of geographic separation between the colony and the imperial power. Particularly, Edward Said distinguishes between imperialism and colonialism by stating: "imperialism involved 'the practice, the theory and the attitudes of a dominating metropolitan center ruling a distant territory', while colonialism refers to the 'implanting of settlements on a distant territory.' Contiguous land empires such as the Russian or Ottoman have traditionally been excluded from discussions of colonialism, though this is beginning to change, since it is accepted that they also sent populations into the territories they ruled.
Imperialism and colonialism both dictate the political and economic advantage over a land and the indigenous populations they control, yet scholars sometimes find it difficult to illustrate the difference between the two. Although imperialism and colonialism focus on the suppression of another, if colonialism refers to the process of a country taking physical control of another, imperialism refers to the political and monetary dominance, either formally or informally. Colonialism is seen to be the architect deciding how to start dominating areas and then imperialism can be seen as creating the idea behind conquest cooperating with colonialism. Colonialism is when the imperial nation begins a conquest over an area and then eventually is able to rule over the areas the previous nation had controlled. Colonialism's core meaning is the exploitation of the valuable assets and supplies of the nation that was conquered and the conquering nation then gaining the benefits from the spoils of the war. The meaning of imperialism is to create an empire, by conquering the other state's lands and therefore increasing its own dominance. Colonialism is the builder and preserver of the colonial possessions in an area by a population coming from a foreign region. Colonialism can completely change the existing social structure, physical structure, and economics of an area; it is not unusual that the characteristics of the conquering peoples are inherited by the conquered indigenous populations. Few colonies remain remote from their mother country. Thus, most will eventually establish a separate nationality or remain under complete control of their mother colony.
Marxism views colonialism as a form of capitalism, enforcing exploitation and social change. Marx thought that working within the global capitalist system, colonialism is closely associated with uneven development. It is an "instrument of wholesale destruction, dependency and systematic exploitation producing distorted economies, socio-psychological disorientation, massive poverty and neocolonial dependency". Colonies are constructed into modes of production. The search for raw materials and the current search for new investment opportunities is a result of inter-capitalist rivalry for capital accumulation. Lenin regarded colonialism as the root cause of imperialism, as imperialism was distinguished by monopoly capitalism via colonialism and as Lyal S. Sunga explains: "Vladimir Lenin advocated forcefully the principle of self-determination of peoples in his "Theses on the Socialist Revolution and the Right of Nations to Self-Determination" as an integral plank in the programme of socialist internationalism" and he quotes Lenin who contended that "The right of nations to self-determination implies exclusively the right to independence in the political sense, the right to free political separation from the oppressor nation. Specifically, this demand for political democracy implies complete freedom to agitate for secession and for a referendum on secession by the seceding nation." Non Russian marxists within the RSFSR and later the USSR, like Sultan Galiev and Vasyl Shakhrai, meanwhile, between 1918 and 1923 and then after 1929, considered the Soviet Regime a renewed version of the Russian imperialism and colonialism.
In his critique of colonialism in Africa, the Guyanese historian and political activist Walter Rodney states:
The decisiveness of the short period of colonialism and its negative consequences for Africa spring mainly from the fact that Africa lost power. Power is the ultimate determinant in human society, being basic to the relations within any group and between groups. It implies the ability to defend one's interests and if necessary to impose one's will by any means available ... When one society finds itself forced to relinquish power entirely to another society that in itself is a form of underdevelopment ... During the centuries of pre-colonial trade, some control over social political and economic life was retained in Africa, in spite of the disadvantageous commerce with Europeans. That little control over internal matters disappeared under colonialism. Colonialism went much further than trade. It meant a tendency towards direct appropriation by Europeans of the social institutions within Africa. Africans ceased to set indigenous cultural goals and standards, and lost full command of training young members of the society. Those were undoubtedly major steps backwards ... Colonialism was not merely a system of exploitation, but one whose essential purpose was to repatriate the profits to the so-called 'mother country'. From an African view-point, that amounted to consistent expatriation of surplus produced by African labour out of African resources. It meant the development of Europe as part of the same dialectical process in which Africa was underdeveloped. Colonial Africa fell within that part of the international capitalist economy from which surplus was drawn to feed the metropolitan sector. As seen earlier, exploitation of land and labour is essential for human social advance, but only on the assumption that the product is made available within the area where the exploitation takes place.
According to Lenin, the new imperialism emphasised the transition of capitalism from free trade to a stage of monopoly capitalism to finance capital. He states it is, "connected with the intensification of the struggle for the partition of the world". As free trade thrives on exports of commodities, monopoly capitalism thrived on the export of capital amassed by profits from banks and industry. This, to Lenin, was the highest stage of capitalism. He goes on to state that this form of capitalism was doomed for war between the capitalists and the exploited nations with the former inevitably losing. War is stated to be the consequence of imperialism. As a continuation of this thought G.N. Uzoigwe states, "But it is now clear from more serious investigations of African history in this period that imperialism was essentially economic in its fundamental impulses."
Classical liberals were generally in abstract opposition to colonialism and imperialism, including Adam Smith, Frédéric Bastiat, Richard Cobden, John Bright, Henry Richard, Herbert Spencer, H.R. Fox Bourne, Edward Morel, Josephine Butler, W.J. Fox and William Ewart Gladstone. Their philosophies found the colonial enterprise, particularly mercantilism, in opposition to the principles of free trade and liberal policies. Adam Smith wrote in The Wealth of Nations that Britain should grant independence to all of its colonies and also argued that it would be economically beneficial for British people in the average, although the merchants having mercantilist privileges would lose out.
During the colonial era, the global process of colonisation served to spread and synthesize the social and political belief systems of the "mother-countries" which often included a belief in a certain natural racial superiority of the race of the mother-country. Colonialism also acted to reinforce these same racial belief systems within the "mother-countries" themselves. Usually also included within the colonial belief systems was a certain belief in the inherent superiority of male over female. This particular belief was often pre-existing amongst the pre-colonial societies, prior to their colonisation.
Popular political practices of the time reinforced colonial rule by legitimising European (and/ or Japanese) male authority, and also legitimising female and non-mother-country race inferiority through studies of craniology, comparative anatomy, and phrenology. Biologists, naturalists, anthropologists, and ethnologists of the 19th century were focused on the study of colonised indigenous women, as in the case of Georges Cuvier's study of Sarah Baartman. Such cases embraced a natural superiority and inferiority relationship between the races based on the observations of naturalists' from the mother-countries. European studies along these lines gave rise to the perception that African women's anatomy, and especially genitalia, resembled those of mandrills, baboons, and monkeys, thus differentiating colonised Africans from what were viewed as the features of the evolutionarily superior, and thus rightfully authoritarian, European woman.
In addition to what would now be viewed as pseudo-scientific studies of race, which tended to reinforce a belief in an inherent mother-country racial superiority, a new supposedly "science-based" ideology concerning gender roles also then emerged as an adjunct to the general body of beliefs of inherent superiority of the colonial era. Female inferiority across all cultures was emerging as an idea supposedly supported by craniology that led scientists to argue that the typical brain size of the female human was, on the average, slightly smaller than that of the male, thus inferring that therefore female humans must be less developed and less evolutionarily advanced than males. This finding of relative cranial size difference was later attributed to the general typical size difference of the human male body versus that of the typical human female body.
Within the former European colonies, non-Europeans and women sometimes faced invasive studies by the colonial powers in the interest of the then prevailing pro-colonial scientific ideology of the day.
Othering is the process of creating a separate entity to persons or groups who are labelled as different or non-normal due to the repetition of characteristics. Othering is the creation of those who discriminate, to distinguish, label, categorise those who do not fit in the societal norm. Several scholars in recent decades developed the notion of the "other" as an epistemological concept in social theory. For example, postcolonial scholars, believed that colonising powers explained an "other" who were there to dominate, civilise, and extract resources through colonisation of land.
Political geographers explain how colonial/imperial powers "othered" places they wanted to dominate to legalise their exploitation of the land. During and after the rise of colonialism the Western powers perceived the East as the "other", being different and separate from their societal norm. This viewpoint and separation of culture had divided the Eastern and Western culture creating a dominant/subordinate dynamic, both being the "other" towards themselves.
Post-colonialism (or post-colonial theory) can refer to a set of theories in philosophy and literature that grapple with the legacy of colonial rule. In this sense, one can regard post-colonial literature as a branch of postmodern literature concerned with the political and cultural independence of peoples formerly subjugated in colonial empires.
Many practitioners take Edward Saïd's book Orientalism (1978) as the theory's founding work (although French theorists such as Aimé Césaire (1913–2008) and Frantz Fanon (1925–1961) made similar claims decades before Saïd). Saïd analyzed the works of Balzac, Baudelaire and Lautréamont, arguing that they helped to shape a societal fantasy of European racial superiority.
Writers of post-colonial fiction interact with the traditional colonial discourse, but modify or subvert it; for instance by retelling a familiar story from the perspective of an oppressed minor character in the story. Gayatri Chakravorty Spivak's Can the Subaltern Speak? (1998) gave its name to Subaltern Studies.
In A Critique of Postcolonial Reason (1999), Spivak argued that major works of European metaphysics (such as those of Kant and Hegel) not only tend to exclude the subaltern from their discussions, but actively prevent non-Europeans from occupying positions as fully human subjects. Hegel's Phenomenology of Spirit (1807), famous for its explicit ethnocentrism, considers Western civilisation as the most accomplished of all, while Kant also had some traces of racialism in his work.
The 2014 YouGov survey found that British people are mostly proud of colonialism and the British Empire:
A new YouGov survey finds that most think the British Empire is more something to be proud of (59%) than to be ashamed of (19%). 23% don't know. Young people are least likely to feel pride over shame when it comes to the Empire, though about half (48%) of 18–24 year old's do. In comparison, about two-thirds (65%) of over 60's feel mostly proud. ... A third of British people (34%) also say they would like it if Britain still had an empire. Under half (45%) say they would not like the Empire to exist today. 20% don't know.
The field of colonistics studies colonialism from such viewpoints as those of economics, sociology and psychology.
Nations and regions outside Europe with significant populations of European ancestry | [
{
"paragraph_id": 0,
"text": "Colonialism is the establishment and maintenance of one group of people as superior to other peoples and areas, often for imperialist controle and exploitation, and through a range of practices and relations of colonization, installing coloniality and possibly colonies. That said there is no clear definition of colonialism and definitions may vary depending on the use of the term and context.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Colonialism is etymologically rooted in the Latin word \"Colonus\", which was used to describe tenant farmers in the Roman Empire. The coloni sharecroppers started as tenants of landlords, but as the system evolved they became permanently indebted to the landowner and trapped in servitude.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Colonialism has existed since ancient times. In the modern period, the concept is most strongly associated with European colonialism, starting in the 15th century and extending to the mid-1900s. At first, conquest followed policies of mercantilism, aiming to strengthen the home-country economy, so agreements usually restricted the colony to trading only with the metropole (mother country). By the mid-19th century, many empires gave up mercantilism and trade restrictions and adopted the principle of free trade, with few restrictions or tariffs.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Missionaries were active in practically all of the European-controlled colonies because the metropoles were Christian. Historian Philip Hoffman calculated that by 1800, before the Industrial Revolution, Europeans already controlled at least 35% of the globe, and by 1914, they had gained control of 84% of the globe. In the aftermath of World War II colonial powers retreated between 1945 and 1975; over which time nearly all colonies gained independence, entering into changed colonial, so-called postcolonial and neocolonialist relations.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Collins English Dictionary defines colonialism as \"the practice by which a powerful country directly controls less powerful countries and uses their resources to increase its own power and wealth\". Webster's Encyclopedic Dictionary defines colonialism as \"the system or policy of a nation seeking to extend or retain its authority over other people or territories\". The Merriam-Webster Dictionary offers four definitions, including \"something characteristic of a colony\" and \"control by one power over a dependent area or people\".",
"title": "Definitions"
},
{
"paragraph_id": 5,
"text": "The Stanford Encyclopedia of Philosophy uses the term \"to describe the process of European settlement and political control over the rest of the world, including the Americas, Australia, and parts of Africa and Asia\". It discusses the distinction between colonialism, imperialism and conquest and states that \"[t]he difficulty of defining colonialism stems from the fact that the term is often used as a synonym for imperialism. Both colonialism and imperialism were forms of conquest that were expected to benefit Europe economically and strategically,\" and continues \"given the difficulty of consistently distinguishing between the two terms, this entry will use colonialism broadly to refer to the project of European political domination from the sixteenth to the twentieth centuries that ended with the national liberation movements of the 1960s\".",
"title": "Definitions"
},
{
"paragraph_id": 6,
"text": "In his preface to Jürgen Osterhammel's Colonialism: A Theoretical Overview, Roger Tignor says \"For Osterhammel, the essence of colonialism is the existence of colonies, which are by definition governed differently from other territories such as protectorates or informal spheres of influence.\" In the book, Osterhammel asks, \"How can 'colonialism' be defined independently from 'colony?'\" He settles on a three-sentence definition:",
"title": "Definitions"
},
{
"paragraph_id": 7,
"text": "Colonialism is a relationship between an indigenous (or forcibly imported) majority and a minority of foreign invaders. The fundamental decisions affecting the lives of the colonised people are made and implemented by the colonial rulers in pursuit of interests that are often defined in a distant metropolis. Rejecting cultural compromises with the colonised population, the colonisers are convinced of their own superiority and their ordained mandate to rule.",
"title": "Definitions"
},
{
"paragraph_id": 8,
"text": "The Times once quipped that there were three types of colonial empire: \"The English, which consists in making colonies with colonists; the German, which collects colonists without colonies; the French, which sets up colonies without colonists.\" Modern studies of colonialism have often distinguished between various overlapping categories of colonialism, broadly classified into four types: settler colonialism, exploitation colonialism, surrogate colonialism, and internal colonialism. Some historians have identified other forms of colonialism, including national and trade forms.",
"title": "Additional definitions"
},
{
"paragraph_id": 9,
"text": "When colonists settled in pre-populated areas, the societies and cultures of the people in those areas permanently changed. Colonial practices directly and indirectly forced the colonized peoples to abandon their traditional cultures. For example, European colonizers in the United States implemented the residential schools program to force native children to assimilate into the hegemonic culture.",
"title": "Socio-cultural evolution"
},
{
"paragraph_id": 10,
"text": "Cultural colonialism gave rise to culturally and ethnically mixed populations such as the mestizos of the Americas, as well as racially divided populations such as those found in French Algeria or in Southern Rhodesia. In fact, everywhere where colonial powers established a consistent and continued presence, hybrid communities existed.",
"title": "Socio-cultural evolution"
},
{
"paragraph_id": 11,
"text": "Notable examples in Asia include the Anglo-Burmese, Anglo-Indian, Burgher, Eurasian Singaporean, Filipino mestizo, Kristang, and Macanese peoples. In the Dutch East Indies (later Indonesia) the vast majority of \"Dutch\" settlers were in fact Eurasians known as Indo-Europeans, formally belonging to the European legal class in the colony.",
"title": "Socio-cultural evolution"
},
{
"paragraph_id": 12,
"text": "Omani Empire",
"title": "List of colonies"
},
{
"paragraph_id": 13,
"text": "Activity that could be called colonialism has a long history, starting at least as early as the ancient Egyptians. Phoenicians, Greeks, and Romans founded colonies in antiquity. Phoenicia had an enterprising maritime trading-culture that spread across the Mediterranean from 1550 BC to 300 BC; later the Persian Empire and various Greek city-states continued on this line of setting up colonies. The Romans would soon follow, setting up coloniae throughout the Mediterranean, in North Africa, and in Western Asia.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "Beginning in the 7th century, Arabs colonized a substantial portion of the Middle East, North Africa, and parts of Asia and Europe. From the 9th century Vikings (Norsemen) such as Leif Erikson established colonies in Britain, Ireland, Iceland, Greenland, North America, present-day Russia and Ukraine, France (Normandy) and Sicily. In the 9th century a new wave of Mediterranean colonisation began, with competitors such as the Venetians, Genovese and Amalfians infiltrating the wealthy previously Byzantine or Eastern Roman islands and lands. European Crusaders set up colonial regimes in Outremer (in the Levant, 1097–1291) and in the Baltic littoral (12th century onwards). Venice began to dominate Dalmatia and reached its greatest nominal colonial extent at the conclusion of the Fourth Crusade in 1204, with the declaration of the acquisition of three octaves of the Byzantine Empire.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "The European early modern period began with the Turkish colonization of Anatolia. After the Ottoman Empire colonialised Constantinople in 1453, the sea routes discovered by Portuguese Prince Henry the Navigator (1394-1460) became central to trade, and helped fuel the Age of Discovery.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "The Crown of Castile encountered the Americas in 1492 through sea travel and built trading posts or conquered large extents of land. The Treaty of Tordesillas divided the areas of these \"new\" lands between the Spanish Empire and the Portuguese Empire in 1494.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "The 17th century saw the birth of the Dutch Empire and French colonial empire, as well as the English overseas possessions, which later became the British Empire. It also saw the establishment of Danish overseas colonies and Swedish overseas colonies.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "A first wave of separatism started with the American Revolutionary War (1775-1783), initiating the Rise of the \"Second\" British Empire (1783-1815). The Spanish Empire largely collapsed in the Americas with the Spanish American wars of independence (1808-1833). Empire-builders established several new colonies after this time, including in the German colonial empire and Belgian colonial empire. Starting with the end of the French Revolution European authors such as Johann Gottfried Herder, August von Kotzebue, and Heinrich von Kleist prolifically published so as to conjure up sympathy for the oppressed native peoples and the slaves of the new world, thereby starting the idealization of native humans.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "The Habsburg monarchy, the Russian Empire, and the Ottoman Empire existed at the same time but did not expand over oceans. Rather, these empires expanded through the conquest of neighbouring territories. There was, though, some Russian colonization of North America across the Bering Strait. From the 1860s onwards the Empire of Japan modelled itself on European colonial empires and expanded its territories in the Pacific and on the Asian mainland. The Empire of Brazil fought for hegemony in South America. The United States gained overseas territories after the 1898 Spanish–American War, hence, the coining of the term \"American imperialism\".",
"title": "History"
},
{
"paragraph_id": 20,
"text": "In the late 19th century many European powers became involved in the Scramble for Africa.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "The world's colonial population at the outbreak of the First World War (1914) – a high point for colonialism – totalled about 560 million people, of whom 70% lived in British possessions, 10% in French possessions, 9% in Dutch possessions, 4% in Japanese possessions, 2% in German possessions, 2% in American possessions, 3% in Portuguese possessions, 1% in Belgian possessions and 0.5% in Italian possessions. The domestic domains of the colonial powers had a total population of about 370 million people. Outside Europe, few areas had remained without coming under formal colonial tutorship – and even Siam, China, Japan, Nepal, Afghanistan, Persia, and Abyssinia had felt varying degrees of Western colonial-style influence – concessions, unequal treaties, extraterritoriality and the like.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "Asking whether colonies paid, economic historian Grover Clark (1891–1938) argues an emphatic \"No!\" He reports that in every case the support cost, especially the military system necessary to support and defend colonies, outran the total trade they produced. Apart from the British Empire, they did not provide favoured destinations for the immigration of surplus metropole populations. The question of whether colonies paid is a complicated one when recognizing the multiplicity of interests involved. In some cases colonial powers paid a lot in military costs while private investors pocketed the benefits. In other cases the colonial powers managed to move the burden of administrative costs to the colonies themselves by imposing taxes.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "After World War I (1914–1918), the victorious Allies divided up the German colonial empire and much of the Ottoman Empire between themselves as League of Nations mandates, grouping these territories into three classes according to how quickly it was deemed that they could prepare for independence. The empires of Russia and Austria collapsed in 1917–1918. Nazi Germany set up short-lived colonial systems (Reichskommissariate, Generalgouvernement) in Eastern Europe in the early 1940s.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "In the aftermath of World War II (1939–1945), decolonisation progressed rapidly. The tumultuous upheaval of the war significantly weakened the major colonial powers, and they quickly lost control of colonies such as Singapore, India, and Libya. In addition, the United Nations shows support for decolonisation in its 1945 charter. In 1960, the UN issued the Declaration on the Granting of Independence to Colonial Countries and Peoples, which affirmed its stance (though notably, colonial empires such as France, Spain, the United Kingdom, and the United States abstained).",
"title": "History"
},
{
"paragraph_id": 25,
"text": "The word \"neocolonialism\" originated from Jean-Paul Sartre in 1956, to refer to a variety of contexts since the decolonisation that took place after World War II. Generally it does not refer to a type of direct colonisation – rather to colonialism or colonial-style exploitation by other means. Specifically, neocolonialism may refer to the theory that former or existing economic relationships, such as the General Agreement on Tariffs and Trade and the Central American Free Trade Agreement, or the operations of companies (such as Royal Dutch Shell in Nigeria and Brunei) fostered by former colonial powers were or are used to maintain control of former colonies and dependencies after the colonial independence movements of the post–World War II period.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "The term \"neocolonialism\" became popular in ex-colonies in the late 20th century.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "The impacts of colonisation are immense and pervasive. Various effects, both immediate and protracted, include the spread of virulent diseases, unequal social relations, detribalization, exploitation, enslavement, medical advances, the creation of new institutions, abolitionism, improved infrastructure, and technological progress. Colonial practices also spur the spread of conquerers' languages, literature and cultural institutions, while endangering or obliterating those of Indigenous peoples. The cultures of the colonised peoples can also have a powerful influence on the imperial country.",
"title": "Impact"
},
{
"paragraph_id": 28,
"text": "With respect to international borders, Britain and France traced close to 40% of the entire length of the world's international boundaries.",
"title": "Impact"
},
{
"paragraph_id": 29,
"text": "Economic expansion, sometimes described as the colonial surplus, has accompanied imperial expansion since ancient times. Greek trade networks spread throughout the Mediterranean region while Roman trade expanded with the primary goal of directing tribute from the colonised areas towards the Roman metropole. According to Strabo, by the time of emperor Augustus, up to 120 Roman ships would set sail every year from Myos Hormos in Roman Egypt to India. With the development of trade routes under the Ottoman Empire,",
"title": "Impact"
},
{
"paragraph_id": 30,
"text": "Gujari Hindus, Syrian Muslims, Jews, Armenians, Christians from south and central Europe operated trading routes that supplied Persian and Arab horses to the armies of all three empires, Mocha coffee to Delhi and Belgrade, Persian silk to India and Istanbul.",
"title": "Impact"
},
{
"paragraph_id": 31,
"text": "Aztec civilisation developed into an extensive empire that, much like the Roman Empire, had the goal of exacting tribute from the conquered colonial areas. For the Aztecs, a significant tribute was the acquisition of sacrificial victims for their religious rituals.",
"title": "Impact"
},
{
"paragraph_id": 32,
"text": "On the other hand, European colonial empires sometimes attempted to channel, restrict and impede trade involving their colonies, funneling activity through the metropole and taxing accordingly.",
"title": "Impact"
},
{
"paragraph_id": 33,
"text": "Despite the general trend of economic expansion, the economic performance of former European colonies varies significantly. In \"Institutions as a Fundamental Cause of Long-run Growth\", economists Daron Acemoglu, Simon Johnson and James A. Robinson compare the economic influences of the European colonists on different colonies and study what could explain the huge discrepancies in previous European colonies, for example, between West African colonies like Sierra Leone and Hong Kong and Singapore.",
"title": "Impact"
},
{
"paragraph_id": 34,
"text": "According to the paper, economic institutions are the determinant of the colonial success because they determine their financial performance and order for the distribution of resources. At the same time, these institutions are also consequences of political institutions – especially how de facto and de jure political power is allocated. To explain the different colonial cases, we thus need to look first into the political institutions that shaped the economic institutions.",
"title": "Impact"
},
{
"paragraph_id": 35,
"text": "For example, one interesting observation is \"the Reversal of Fortune\" – the less developed civilisations in 1500, like North America, Australia, and New Zealand, are now much richer than those countries who used to be in the prosperous civilisations in 1500 before the colonists came, like the Mughals in India and the Incas in the Americas. One explanation offered by the paper focuses on the political institutions of the various colonies: it was less likely for European colonists to introduce economic institutions where they could benefit quickly from the extraction of resources in the area. Therefore, given a more developed civilisation and denser population, European colonists would rather keep the existing economic systems than introduce an entirely new system; while in places with little to extract, European colonists would rather establish new economic institutions to protect their interests. Political institutions thus gave rise to different types of economic systems, which determined the colonial economic performance.",
"title": "Impact"
},
{
"paragraph_id": 36,
"text": "European colonisation and development also changed gendered systems of power already in place around the world. In many pre-colonialist areas, women maintained power, prestige, or authority through reproductive or agricultural control. For example, in certain parts of sub-Saharan Africa women maintained farmland in which they had usage rights. While men would make political and communal decisions for a community, the women would control the village's food supply or their individual family's land. This allowed women to achieve power and autonomy, even in patrilineal and patriarchal societies.",
"title": "Impact"
},
{
"paragraph_id": 37,
"text": "Through the rise of European colonialism came a large push for development and industrialisation of most economic systems. When working to improve productivity, Europeans focused mostly on male workers. Foreign aid arrived in the form of loans, land, credit, and tools to speed up development, but were only allocated to men. In a more European fashion, women were expected to serve on a more domestic level. The result was a technologic, economic, and class-based gender gap that widened over time.",
"title": "Impact"
},
{
"paragraph_id": 38,
"text": "Within a colony, the presence of extractive colonial institutions in a given area has been found have effects on the modern day economic development, institutions and infrastructure of these areas.",
"title": "Impact"
},
{
"paragraph_id": 39,
"text": "European nations entered their imperial projects with the goal of enriching the European metropoles. Exploitation of non-Europeans and of other Europeans to support imperial goals was acceptable to the colonisers. Two outgrowths of this imperial agenda were the extension of slavery and indentured servitude. In the 17th century, nearly two-thirds of English settlers came to North America as indentured servants.",
"title": "Impact"
},
{
"paragraph_id": 40,
"text": "European slave traders brought large numbers of African slaves to the Americas by sail. Spain and Portugal had brought African slaves to work in African colonies such as Cape Verde and São Tomé and Príncipe, and then in Latin America, by the 16th century. The British, French and Dutch joined in the slave trade in subsequent centuries. The European colonial system took approximately 11 million Africans to the Caribbean and to North and South America as slaves.",
"title": "Impact"
},
{
"paragraph_id": 41,
"text": "Abolitionists in Europe and Americas protested the inhumane treatment of African slaves, which led to the elimination of the slave trade (and later, of most forms of slavery) by the late 19th century. One (disputed) school of thought points to the role of abolitionism in the American Revolution: while the British colonial metropole started to move towards outlawing slavery, slave-owning elites in the Thirteen Colonies saw this as one of the reasons to fight for their post-colonial independence and for the right to develop and continue a largely slave-based economy.",
"title": "Impact"
},
{
"paragraph_id": 42,
"text": "British colonising activity in New Zealand from the early 19th century played a part in ending slave-taking and slave-keeping among the indigenous Māori. On the other hand, British colonial administration in Southern Africa, when it officially abolished slavery in the 1830s, caused rifts in society which arguably perpetuated slavery in the Boer Republics and fed into the philosophy of apartheid.",
"title": "Impact"
},
{
"paragraph_id": 43,
"text": "The labour shortages that resulted from abolition inspired European colonisers in Queensland, British Guaiana and Fiji (for example) to develop new sources of labour, re-adopting a system of indentured servitude. Indentured servants consented to a contract with the European colonisers. Under their contract, the servant would work for an employer for a term of at least a year, while the employer agreed to pay for the servant's voyage to the colony, possibly pay for the return to the country of origin, and pay the employee a wage as well. The employees became \"indentured\" to the employer because they owed a debt back to the employer for their travel expense to the colony, which they were expected to pay through their wages. In practice, indentured servants were exploited through terrible working conditions and burdensome debts imposed by the employers, with whom the servants had no means of negotiating the debt once they arrived in the colony.",
"title": "Impact"
},
{
"paragraph_id": 44,
"text": "India and China were the largest source of indentured servants during the colonial era. Indentured servants from India travelled to British colonies in Asia, Africa and the Caribbean, and also to French and Portuguese colonies, while Chinese servants travelled to British and Dutch colonies. Between 1830 and 1930, around 30 million indentured servants migrated from India, and 24 million returned to India. China sent more indentured servants to European colonies, and around the same proportion returned to China.",
"title": "Impact"
},
{
"paragraph_id": 45,
"text": "Following the Scramble for Africa, an early but secondary focus for most colonial regimes was the suppression of slavery and the slave trade. By the end of the colonial period they were mostly successful in this aim, though slavery persists in Africa and in the world at large with much the same practices of de facto servility despite legislative prohibition.",
"title": "Impact"
},
{
"paragraph_id": 46,
"text": "Conquering forces have throughout history applied innovation in order to gain an advantage over the armies of the people they aim to conquer. Greeks developed the phalanx system, which enabled their military units to present themselves to their enemies as a wall, with foot soldiers using shields to cover one another during their advance on the battlefield. Under Philip II of Macedon, they were able to organise thousands of soldiers into a formidable battle force, bringing together carefully trained infantry and cavalry regiments. Alexander the Great exploited this military foundation further during his conquests.",
"title": "Impact"
},
{
"paragraph_id": 47,
"text": "The Spanish Empire held a major advantage over Mesoamerican warriors through the use of weapons made of stronger metal, predominantly iron, which was able to shatter the blades of axes used by the Aztec civilisation and others. The use of gunpowder weapons cemented the European military advantage over the peoples they sought to subjugate in the Americas and elsewhere.",
"title": "Impact"
},
{
"paragraph_id": 48,
"text": "The populations of some colonial territories, such as Canada, enjoyed relative peace and prosperity as part of a European power, at least among the majority. Minority populations such as First Nations peoples and French-Canadians experienced marginalisation and resented colonial practices. Francophone residents of Quebec, for example, were vocal in opposing conscription into the armed services to fight on behalf of Britain during World War I, resulting in the Conscription crisis of 1917. Other European colonies had much more pronounced conflict between European settlers and the local population. Rebellions broke out in the later decades of the imperial era, such as India's Sepoy Rebellion of 1857.",
"title": "Impact"
},
{
"paragraph_id": 49,
"text": "The territorial boundaries imposed by European colonisers, notably in central Africa and South Asia, defied the existing boundaries of native populations that had previously interacted little with one another. European colonisers disregarded native political and cultural animosities, imposing peace upon people under their military control. Native populations were often relocated at the will of the colonial administrators.",
"title": "Impact"
},
{
"paragraph_id": 50,
"text": "The Partition of British India in August 1947 led to the Independence of India and the creation of Pakistan. These events also caused much bloodshed at the time of the migration of immigrants from the two countries. Muslims from India and Hindus and Sikhs from Pakistan migrated to the respective countries they sought independence for.",
"title": "Impact"
},
{
"paragraph_id": 51,
"text": "In a reversal of the migration patterns experienced during the modern colonial era, post-independence era migration followed a route back towards the imperial country. In some cases, this was a movement of settlers of European origin returning to the land of their birth, or to an ancestral birthplace. 900,000 French colonists (known as the Pied-Noirs) resettled in France following Algeria's independence in 1962. A significant number of these migrants were also of Algerian descent. 800,000 people of Portuguese origin migrated to Portugal after the independence of former colonies in Africa between 1974 and 1979; 300,000 settlers of Dutch origin migrated to the Netherlands from the Dutch West Indies after Dutch military control of the colony ended.",
"title": "Impact"
},
{
"paragraph_id": 52,
"text": "After WWII 300,000 Dutchmen from the Dutch East Indies, of which the majority were people of Eurasian descent called Indo Europeans, repatriated to the Netherlands. A significant number later migrated to the US, Canada, Australia and New Zealand.",
"title": "Impact"
},
{
"paragraph_id": 53,
"text": "Global travel and migration in general developed at an increasingly brisk pace throughout the era of European colonial expansion. Citizens of the former colonies of European countries may have a privileged status in some respects with regard to immigration rights when settling in the former European imperial nation. For example, rights to dual citizenship may be generous, or larger immigrant quotas may be extended to former colonies.",
"title": "Impact"
},
{
"paragraph_id": 54,
"text": "In some cases, the former European imperial nations continue to foster close political and economic ties with former colonies. The Commonwealth of Nations is an organisation that promotes cooperation between and among Britain and its former colonies, the Commonwealth members. A similar organisation exists for former colonies of France, the Francophonie; the Community of Portuguese Language Countries plays a similar role for former Portuguese colonies, and the Dutch Language Union is the equivalent for former colonies of the Netherlands.",
"title": "Impact"
},
{
"paragraph_id": 55,
"text": "Migration from former colonies has proven to be problematic for European countries, where the majority population may express hostility to ethnic minorities who have immigrated from former colonies. Cultural and religious conflict have often erupted in France in recent decades, between immigrants from the Maghreb countries of north Africa and the majority population of France. Nonetheless, immigration has changed the ethnic composition of France; by the 1980s, 25% of the total population of \"inner Paris\" and 14% of the metropolitan region were of foreign origin, mainly Algerian.",
"title": "Impact"
},
{
"paragraph_id": 56,
"text": "Encounters between explorers and populations in the rest of the world often introduced new diseases, which sometimes caused local epidemics of extraordinary virulence. For example, smallpox, measles, malaria, yellow fever, and others were unknown in pre-Columbian America.",
"title": "Impact"
},
{
"paragraph_id": 57,
"text": "Half the native population of Hispaniola in 1518 was killed by smallpox. Smallpox also ravaged Mexico in the 1520s, killing 150,000 in Tenochtitlan alone, including the emperor, and Peru in the 1530s, aiding the European conquerors. Measles killed a further two million Mexican natives in the 17th century. In 1618–1619, smallpox wiped out 90% of the Massachusetts Bay Native Americans. Smallpox epidemics in 1780–1782 and 1837–1838 brought devastation and drastic depopulation among the Plains Indians. Some believe that the death of up to 95% of the Native American population of the New World was caused by Old World diseases. Over the centuries, the Europeans had developed high degrees of immunity to these diseases, while the indigenous peoples had no time to build such immunity.",
"title": "Impact"
},
{
"paragraph_id": 58,
"text": "Smallpox decimated the native population of Australia, killing around 50% of indigenous Australians in the early years of British colonisation. It also killed many New Zealand Māori. As late as 1848–49, as many as 40,000 out of 150,000 Hawaiians are estimated to have died of measles, whooping cough and influenza. Introduced diseases, notably smallpox, nearly wiped out the native population of Easter Island. In 1875, measles killed over 40,000 Fijians, approximately one-third of the population. The Ainu population decreased drastically in the 19th century, due in large part to infectious diseases brought by Japanese settlers pouring into Hokkaido.",
"title": "Impact"
},
{
"paragraph_id": 59,
"text": "Conversely, researchers have hypothesised that a precursor to syphilis may have been carried from the New World to Europe after Columbus's voyages. The findings suggested Europeans could have carried the nonvenereal tropical bacteria home, where the organisms may have mutated into a more deadly form in the different conditions of Europe. The disease was more frequently fatal than it is today; syphilis was a major killer in Europe during the Renaissance. The first cholera pandemic began in Bengal, then spread across India by 1820. Ten thousand British troops and countless Indians died during this pandemic. Between 1736 and 1834 only some 10% of East India Company's officers survived to take the final voyage home. Waldemar Haffkine, who mainly worked in India, who developed and used vaccines against cholera and bubonic plague in the 1890s, is considered the first microbiologist.",
"title": "Impact"
},
{
"paragraph_id": 60,
"text": "According to a 2021 study by Jörg Baten and Laura Maravall on the anthropometric influence of colonialism on Africans, the average height of Africans decreased by 1.1 centimetres upon colonization and later recovered and increased overall during colonial rule. The authors attributed the decrease to diseases, such as malaria and sleeping sickness, forced labor during the early decades of colonial rule, conflicts, land grabbing, and widespread cattle deaths from the rinderpest viral disease.",
"title": "Impact"
},
{
"paragraph_id": 61,
"text": "As early as 1803, the Spanish Crown organised a mission (the Balmis expedition) to transport the smallpox vaccine to the Spanish colonies, and establish mass vaccination programs there. By 1832, the federal government of the United States established a smallpox vaccination program for Native Americans. Under the direction of Mountstuart Elphinstone a program was launched to propagate smallpox vaccination in India. From the beginning of the 20th century onwards, the elimination or control of disease in tropical countries became a driving force for all colonial powers. The sleeping sickness epidemic in Africa was arrested due to mobile teams systematically screening millions of people at risk. In the 20th century, the world saw the biggest increase in its population in human history due to lessening of the mortality rate in many countries due to medical advances. The world population has grown from 1.6 billion in 1900 to over seven billion today.",
"title": "Impact"
},
{
"paragraph_id": 62,
"text": "Colonial botany refers to the body of works concerning the study, cultivation, marketing and naming of the new plants that were acquired or traded during the age of European colonialism. Notable examples of these plants included sugar, nutmeg, tobacco, cloves, cinnamon, Peruvian bark, peppers, Sassafras albidum, and tea. This work was a large part of securing financing for colonial ambitions, supporting European expansion and ensuring the profitability of such endeavors. Vasco de Gama and Christopher Columbus were seeking to establish routes to trade spices, dyes and silk from the Moluccas, India and China by sea that would be independent of the established routes controlled by Venetian and Middle Eastern merchants. Naturalists like Hendrik van Rheede, Georg Eberhard Rumphius, and Jacobus Bontius compiled data about eastern plants on behalf of the Europeans. Though Sweden did not possess an extensive colonial network, botanical research based on Carl Linnaeus identified and developed techniques to grow cinnamon, tea and rice locally as an alternative to costly imports.",
"title": "Botany"
},
{
"paragraph_id": 63,
"text": "Settlers acted as the link between indigenous populations and the imperial hegemony, thus bridging the geographical, ideological and commercial gap between the colonisers and colonised. While the extent in which geography as an academic study is implicated in colonialism is contentious, geographical tools such as cartography, shipbuilding, navigation, mining and agricultural productivity were instrumental in European colonial expansion. Colonisers' awareness of the Earth's surface and abundance of practical skills provided colonisers with a knowledge that, in turn, created power.",
"title": "Geography"
},
{
"paragraph_id": 64,
"text": "Anne Godlewska and Neil Smith argue that \"empire was 'quintessentially a geographical project'\". Historical geographical theories such as environmental determinism legitimised colonialism by positing the view that some parts of the world were underdeveloped, which created notions of skewed evolution. Geographers such as Ellen Churchill Semple and Ellsworth Huntington put forward the notion that northern climates bred vigour and intelligence as opposed to those indigenous to tropical climates (See The Tropics) viz a viz a combination of environmental determinism and Social Darwinism in their approach.",
"title": "Geography"
},
{
"paragraph_id": 65,
"text": "Political geographers also maintain that colonial behaviour was reinforced by the physical mapping of the world, therefore creating a visual separation between \"them\" and \"us\". Geographers are primarily focused on the spaces of colonialism and imperialism; more specifically, the material and symbolic appropriation of space enabling colonialism.",
"title": "Geography"
},
{
"paragraph_id": 66,
"text": "Maps played an extensive role in colonialism, as Bassett would put it \"by providing geographical information in a convenient and standardised format, cartographers helped open West Africa to European conquest, commerce, and colonisation\". Because the relationship between colonialism and geography was not scientifically objective, cartography was often manipulated during the colonial era. Social norms and values had an effect on the constructing of maps. During colonialism map-makers used rhetoric in their formation of boundaries and in their art. The rhetoric favoured the view of the conquering Europeans; this is evident in the fact that any map created by a non-European was instantly regarded as inaccurate. Furthermore, European cartographers were required to follow a set of rules which led to ethnocentrism; portraying one's own ethnicity in the centre of the map. As J.B. Harley put it, \"The steps in making a map – selection, omission, simplification, classification, the creation of hierarchies, and 'symbolisation' – are all inherently rhetorical.\"",
"title": "Geography"
},
{
"paragraph_id": 67,
"text": "A common practice by the European cartographers of the time was to map unexplored areas as \"blank spaces\". This influenced the colonial powers as it sparked competition amongst them to explore and colonise these regions. Imperialists aggressively and passionately looked forward to filling these spaces for the glory of their respective countries. The Dictionary of Human Geography notes that cartography was used to empty 'undiscovered' lands of their Indigenous meaning and bring them into spatial existence via the imposition of \"Western place-names and borders, [therefore] priming 'virgin' (putatively empty land, 'wilderness') for colonisation (thus sexualising colonial landscapes as domains of male penetration), reconfiguring alien space as absolute, quantifiable and separable (as property).\"",
"title": "Geography"
},
{
"paragraph_id": 68,
"text": "David Livingstone stresses \"that geography has meant different things at different times and in different places\" and that we should keep an open mind in regards to the relationship between geography and colonialism instead of identifying boundaries. Geography as a discipline was not and is not an objective science, Painter and Jeffrey argue, rather it is based on assumptions about the physical world. Comparison of exogeographical representations of ostensibly tropical environments in science fiction art support this conjecture, finding the notion of the tropics to be an artificial collection of ideas and beliefs that are independent of geography.",
"title": "Geography"
},
{
"paragraph_id": 69,
"text": "The term \"imperialism\" is often conflated with \"colonialism\"; however, many scholars have argued that each has its own distinct definition. Imperialism and colonialism have been used in order to describe one's influence upon a person or group of people. Robert Young writes that imperialism operates from the centre as a state policy and is developed for ideological as well as financial reasons, while colonialism is simply the development for settlement or commercial intentions; however, colonialism still includes invasion. Colonialism in modern usage also tends to imply a degree of geographic separation between the colony and the imperial power. Particularly, Edward Said distinguishes between imperialism and colonialism by stating: \"imperialism involved 'the practice, the theory and the attitudes of a dominating metropolitan center ruling a distant territory', while colonialism refers to the 'implanting of settlements on a distant territory.' Contiguous land empires such as the Russian or Ottoman have traditionally been excluded from discussions of colonialism, though this is beginning to change, since it is accepted that they also sent populations into the territories they ruled.",
"title": "Versus imperialism"
},
{
"paragraph_id": 70,
"text": "Imperialism and colonialism both dictate the political and economic advantage over a land and the indigenous populations they control, yet scholars sometimes find it difficult to illustrate the difference between the two. Although imperialism and colonialism focus on the suppression of another, if colonialism refers to the process of a country taking physical control of another, imperialism refers to the political and monetary dominance, either formally or informally. Colonialism is seen to be the architect deciding how to start dominating areas and then imperialism can be seen as creating the idea behind conquest cooperating with colonialism. Colonialism is when the imperial nation begins a conquest over an area and then eventually is able to rule over the areas the previous nation had controlled. Colonialism's core meaning is the exploitation of the valuable assets and supplies of the nation that was conquered and the conquering nation then gaining the benefits from the spoils of the war. The meaning of imperialism is to create an empire, by conquering the other state's lands and therefore increasing its own dominance. Colonialism is the builder and preserver of the colonial possessions in an area by a population coming from a foreign region. Colonialism can completely change the existing social structure, physical structure, and economics of an area; it is not unusual that the characteristics of the conquering peoples are inherited by the conquered indigenous populations. Few colonies remain remote from their mother country. Thus, most will eventually establish a separate nationality or remain under complete control of their mother colony.",
"title": "Versus imperialism"
},
{
"paragraph_id": 71,
"text": "Marxism views colonialism as a form of capitalism, enforcing exploitation and social change. Marx thought that working within the global capitalist system, colonialism is closely associated with uneven development. It is an \"instrument of wholesale destruction, dependency and systematic exploitation producing distorted economies, socio-psychological disorientation, massive poverty and neocolonial dependency\". Colonies are constructed into modes of production. The search for raw materials and the current search for new investment opportunities is a result of inter-capitalist rivalry for capital accumulation. Lenin regarded colonialism as the root cause of imperialism, as imperialism was distinguished by monopoly capitalism via colonialism and as Lyal S. Sunga explains: \"Vladimir Lenin advocated forcefully the principle of self-determination of peoples in his \"Theses on the Socialist Revolution and the Right of Nations to Self-Determination\" as an integral plank in the programme of socialist internationalism\" and he quotes Lenin who contended that \"The right of nations to self-determination implies exclusively the right to independence in the political sense, the right to free political separation from the oppressor nation. Specifically, this demand for political democracy implies complete freedom to agitate for secession and for a referendum on secession by the seceding nation.\" Non Russian marxists within the RSFSR and later the USSR, like Sultan Galiev and Vasyl Shakhrai, meanwhile, between 1918 and 1923 and then after 1929, considered the Soviet Regime a renewed version of the Russian imperialism and colonialism.",
"title": "Marxism"
},
{
"paragraph_id": 72,
"text": "In his critique of colonialism in Africa, the Guyanese historian and political activist Walter Rodney states:",
"title": "Marxism"
},
{
"paragraph_id": 73,
"text": "The decisiveness of the short period of colonialism and its negative consequences for Africa spring mainly from the fact that Africa lost power. Power is the ultimate determinant in human society, being basic to the relations within any group and between groups. It implies the ability to defend one's interests and if necessary to impose one's will by any means available ... When one society finds itself forced to relinquish power entirely to another society that in itself is a form of underdevelopment ... During the centuries of pre-colonial trade, some control over social political and economic life was retained in Africa, in spite of the disadvantageous commerce with Europeans. That little control over internal matters disappeared under colonialism. Colonialism went much further than trade. It meant a tendency towards direct appropriation by Europeans of the social institutions within Africa. Africans ceased to set indigenous cultural goals and standards, and lost full command of training young members of the society. Those were undoubtedly major steps backwards ... Colonialism was not merely a system of exploitation, but one whose essential purpose was to repatriate the profits to the so-called 'mother country'. From an African view-point, that amounted to consistent expatriation of surplus produced by African labour out of African resources. It meant the development of Europe as part of the same dialectical process in which Africa was underdeveloped. Colonial Africa fell within that part of the international capitalist economy from which surplus was drawn to feed the metropolitan sector. As seen earlier, exploitation of land and labour is essential for human social advance, but only on the assumption that the product is made available within the area where the exploitation takes place.",
"title": "Marxism"
},
{
"paragraph_id": 74,
"text": "According to Lenin, the new imperialism emphasised the transition of capitalism from free trade to a stage of monopoly capitalism to finance capital. He states it is, \"connected with the intensification of the struggle for the partition of the world\". As free trade thrives on exports of commodities, monopoly capitalism thrived on the export of capital amassed by profits from banks and industry. This, to Lenin, was the highest stage of capitalism. He goes on to state that this form of capitalism was doomed for war between the capitalists and the exploited nations with the former inevitably losing. War is stated to be the consequence of imperialism. As a continuation of this thought G.N. Uzoigwe states, \"But it is now clear from more serious investigations of African history in this period that imperialism was essentially economic in its fundamental impulses.\"",
"title": "Marxism"
},
{
"paragraph_id": 75,
"text": "Classical liberals were generally in abstract opposition to colonialism and imperialism, including Adam Smith, Frédéric Bastiat, Richard Cobden, John Bright, Henry Richard, Herbert Spencer, H.R. Fox Bourne, Edward Morel, Josephine Butler, W.J. Fox and William Ewart Gladstone. Their philosophies found the colonial enterprise, particularly mercantilism, in opposition to the principles of free trade and liberal policies. Adam Smith wrote in The Wealth of Nations that Britain should grant independence to all of its colonies and also argued that it would be economically beneficial for British people in the average, although the merchants having mercantilist privileges would lose out.",
"title": "Liberalism and capitalism"
},
{
"paragraph_id": 76,
"text": "During the colonial era, the global process of colonisation served to spread and synthesize the social and political belief systems of the \"mother-countries\" which often included a belief in a certain natural racial superiority of the race of the mother-country. Colonialism also acted to reinforce these same racial belief systems within the \"mother-countries\" themselves. Usually also included within the colonial belief systems was a certain belief in the inherent superiority of male over female. This particular belief was often pre-existing amongst the pre-colonial societies, prior to their colonisation.",
"title": "Race and gender"
},
{
"paragraph_id": 77,
"text": "Popular political practices of the time reinforced colonial rule by legitimising European (and/ or Japanese) male authority, and also legitimising female and non-mother-country race inferiority through studies of craniology, comparative anatomy, and phrenology. Biologists, naturalists, anthropologists, and ethnologists of the 19th century were focused on the study of colonised indigenous women, as in the case of Georges Cuvier's study of Sarah Baartman. Such cases embraced a natural superiority and inferiority relationship between the races based on the observations of naturalists' from the mother-countries. European studies along these lines gave rise to the perception that African women's anatomy, and especially genitalia, resembled those of mandrills, baboons, and monkeys, thus differentiating colonised Africans from what were viewed as the features of the evolutionarily superior, and thus rightfully authoritarian, European woman.",
"title": "Race and gender"
},
{
"paragraph_id": 78,
"text": "In addition to what would now be viewed as pseudo-scientific studies of race, which tended to reinforce a belief in an inherent mother-country racial superiority, a new supposedly \"science-based\" ideology concerning gender roles also then emerged as an adjunct to the general body of beliefs of inherent superiority of the colonial era. Female inferiority across all cultures was emerging as an idea supposedly supported by craniology that led scientists to argue that the typical brain size of the female human was, on the average, slightly smaller than that of the male, thus inferring that therefore female humans must be less developed and less evolutionarily advanced than males. This finding of relative cranial size difference was later attributed to the general typical size difference of the human male body versus that of the typical human female body.",
"title": "Race and gender"
},
{
"paragraph_id": 79,
"text": "Within the former European colonies, non-Europeans and women sometimes faced invasive studies by the colonial powers in the interest of the then prevailing pro-colonial scientific ideology of the day.",
"title": "Race and gender"
},
{
"paragraph_id": 80,
"text": "Othering is the process of creating a separate entity to persons or groups who are labelled as different or non-normal due to the repetition of characteristics. Othering is the creation of those who discriminate, to distinguish, label, categorise those who do not fit in the societal norm. Several scholars in recent decades developed the notion of the \"other\" as an epistemological concept in social theory. For example, postcolonial scholars, believed that colonising powers explained an \"other\" who were there to dominate, civilise, and extract resources through colonisation of land.",
"title": "Othering"
},
{
"paragraph_id": 81,
"text": "Political geographers explain how colonial/imperial powers \"othered\" places they wanted to dominate to legalise their exploitation of the land. During and after the rise of colonialism the Western powers perceived the East as the \"other\", being different and separate from their societal norm. This viewpoint and separation of culture had divided the Eastern and Western culture creating a dominant/subordinate dynamic, both being the \"other\" towards themselves.",
"title": "Othering"
},
{
"paragraph_id": 82,
"text": "Post-colonialism (or post-colonial theory) can refer to a set of theories in philosophy and literature that grapple with the legacy of colonial rule. In this sense, one can regard post-colonial literature as a branch of postmodern literature concerned with the political and cultural independence of peoples formerly subjugated in colonial empires.",
"title": "Post-colonialism"
},
{
"paragraph_id": 83,
"text": "Many practitioners take Edward Saïd's book Orientalism (1978) as the theory's founding work (although French theorists such as Aimé Césaire (1913–2008) and Frantz Fanon (1925–1961) made similar claims decades before Saïd). Saïd analyzed the works of Balzac, Baudelaire and Lautréamont, arguing that they helped to shape a societal fantasy of European racial superiority.",
"title": "Post-colonialism"
},
{
"paragraph_id": 84,
"text": "Writers of post-colonial fiction interact with the traditional colonial discourse, but modify or subvert it; for instance by retelling a familiar story from the perspective of an oppressed minor character in the story. Gayatri Chakravorty Spivak's Can the Subaltern Speak? (1998) gave its name to Subaltern Studies.",
"title": "Post-colonialism"
},
{
"paragraph_id": 85,
"text": "In A Critique of Postcolonial Reason (1999), Spivak argued that major works of European metaphysics (such as those of Kant and Hegel) not only tend to exclude the subaltern from their discussions, but actively prevent non-Europeans from occupying positions as fully human subjects. Hegel's Phenomenology of Spirit (1807), famous for its explicit ethnocentrism, considers Western civilisation as the most accomplished of all, while Kant also had some traces of racialism in his work.",
"title": "Post-colonialism"
},
{
"paragraph_id": 86,
"text": "The 2014 YouGov survey found that British people are mostly proud of colonialism and the British Empire:",
"title": "Post-colonialism"
},
{
"paragraph_id": 87,
"text": "A new YouGov survey finds that most think the British Empire is more something to be proud of (59%) than to be ashamed of (19%). 23% don't know. Young people are least likely to feel pride over shame when it comes to the Empire, though about half (48%) of 18–24 year old's do. In comparison, about two-thirds (65%) of over 60's feel mostly proud. ... A third of British people (34%) also say they would like it if Britain still had an empire. Under half (45%) say they would not like the Empire to exist today. 20% don't know.",
"title": "Post-colonialism"
},
{
"paragraph_id": 88,
"text": "The field of colonistics studies colonialism from such viewpoints as those of economics, sociology and psychology.",
"title": "Colonistics"
},
{
"paragraph_id": 89,
"text": "Nations and regions outside Europe with significant populations of European ancestry",
"title": "Migrations"
}
] | Colonialism is the establishment and maintenance of one group of people as superior to other peoples and areas, often for imperialist controle and exploitation, and through a range of practices and relations of colonization, installing coloniality and possibly colonies. That said there is no clear definition of colonialism and definitions may vary depending on the use of the term and context. Colonialism is etymologically rooted in the Latin word "Colonus", which was used to describe tenant farmers in the Roman Empire. The coloni sharecroppers started as tenants of landlords, but as the system evolved they became permanently indebted to the landowner and trapped in servitude. Colonialism has existed since ancient times. In the modern period, the concept is most strongly associated with European colonialism, starting in the 15th century and extending to the mid-1900s. At first, conquest followed policies of mercantilism, aiming to strengthen the home-country economy, so agreements usually restricted the colony to trading only with the metropole. By the mid-19th century, many empires gave up mercantilism and trade restrictions and adopted the principle of free trade, with few restrictions or tariffs. Missionaries were active in practically all of the European-controlled colonies because the metropoles were Christian. Historian Philip Hoffman calculated that by 1800, before the Industrial Revolution, Europeans already controlled at least 35% of the globe, and by 1914, they had gained control of 84% of the globe. In the aftermath of World War II colonial powers retreated between 1945 and 1975; over which time nearly all colonies gained independence, entering into changed colonial, so-called postcolonial and neocolonialist relations. | 2001-12-02T18:46:59Z | 2023-12-28T09:11:19Z | [
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7,300 | Colonial | Colonial or The Colonial may refer to: | [
{
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"text": "Colonial or The Colonial may refer to:",
"title": ""
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] | Colonial or The Colonial may refer to: Colonial, of, relating to, or characteristic of a colony or colony (biology) | 2023-05-22T21:20:31Z | [
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7,301 | Casablanca | Casablanca, also known by its Arabic name Dar el-Beida (Arabic: الدار البيضاء, romanized: ad-Dār al-Bayḍāʾ, [adˈdaːru ɫbajdˤaːʔ], lit. 'White House'; Berber languages: ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ, romanized: Taddart Tumlilt), is the largest city in Morocco and the country's economic and business center. Located on the Atlantic coast of the Chaouia plain in the central-western part of Morocco, the city has a population of about 3.71 million in the urban area, and over 4.27 million in the Greater Casablanca, making it the most populous city in the Maghreb region, and the eighth-largest in the Arab world.
Casablanca is Morocco's chief port, with the Port of Casablanca being one of the largest artificial ports in the world, and the second largest port in North Africa, after Tanger-Med (40 km (25 mi) east of Tangier). Casablanca also hosts the primary naval base for the Royal Moroccan Navy.
Casablanca is considered a Global Financial Centre, ranking 54th globally in the Global Financial Centres Index rankings for the year 2022, outperforming cities such as New Delhi, Jakarta, Istanbul, and Mexico City. Casablanca is ranked among the Emerging International contenders, and it is considered the largest financial center in Africa. The leading Moroccan companies and many of the larger American and European corporations doing business in the country have their headquarters and main industrial facilities in Casablanca. Recent industrial statistics show Casablanca is the primary industrial zone of the nation.
Before the 15th century, the settlement at what is now Casablanca had been called Anfa, rendered in European sources variously as El-Anfa, Anafa or Anaffa, Anafe, Anife, Anafee, Nafe, and Nafee. Ibn Khaldun ascribed the name to the Anfaça, a branch of the Auréba [ar] tribe of the Maghreb, though the sociologist André Adam refuted this claim due to the absence of the third syllable. Nahum Slouschz gave a Hebrew etymology, citing the Lexicon of Gesenius: anâphâh (a type of bird) or anaph (face, figure), though Adam refuted this arguing that even a Judaized population would still have spoken Tamazight. Adam also refuted an Arabic etymology, أنف (anf, "nose"), as the city predated the linguistic Arabization of the country, and the term anf was not used to describe geographic areas. Adam affirmed a Tamazight etymology—from anfa "hill," anfa "promontory on the sea," ifni "sandy beach," or anfa "threshing floor"—although he determined the available information insufficient to establish exactly which. The name Anfa is now rendered in Neo-Tifinagh as ⴰⵏⴼⴰ.
The name "Anfa" was used in maps until around 1830—in some until 1851—which Adam attributes to the tendency of cartographers to replicate previous maps.
When Sultan Mohammed ben Abdallah (c. 1710–1790) rebuilt the city after its destruction in the earthquake of 1755, it was renamed "ad-Dār al-Bayḍāʾ " (الدار البيضاء The White House), though in vernacular use it was pronounced "Dar al-Baiḍā" (دار البيضاء literally House of the White, although in Moroccan Arabic vernacular it retains the original sense of The White House).
The origins of the name "Casablanca" are unclear, although several theories have been suggested. André Adam mentions the legend of the Sufi saint and merchant Allal al-Qairawani, who supposedly came from Tunisia and settled in Casablanca with his wife Lalla al-Baiḍāʾ (لالة البيضاء White Lady). The villagers of Mediouna would reportedly provision themselves at "Dar al-Baiḍāʾ" (دار البيضاء House of the White).
In fact, on a low hill slightly inland above the ruins of Anfa and just to the west of today's city centre, it appears there was a white-washed structure, possibly a Sufi zawiya that acted as a landmark to sailors. The Portuguese cartographer Duarte Pacheco wrote in the early 16th century that the city could easily be identified by a tower, and nautical guides from the late 19th century still mentioned a "white tower" as a point of reference. The Portuguese mariners calqued the modern Arabic name to "Casa Branca" ([kazɐ'bɾɐ̃kɐ] White House) in place of Anfa. The name "Casablanca" was then a calque of the Portuguese name when the Spanish took over trade through the Iberian Union.
During the French protectorate in Morocco, the name remained Casablanca (pronounced [kazablɑ̃ka]). Today, Moroccans still call the city Casablanca or Casa for short, or by its Arabic name, pronounced d-Dār l-Biḍā in Moroccan Arabic or ad-Dāru-l-Bayḍā' in Standard Arabic.
The area which is today Casablanca was founded and settled by Berbers by at least the seventh century BC. It was used as a port by the Phoenicians and later the Romans. In his book Description of Africa, Leo Africanus refers to ancient Casablanca as "Anfa", a great city founded in the Berber kingdom of Barghawata in 744 AD. He believed Anfa was the most "prosperous city on the Atlantic Coast because of its fertile land." Barghawata rose as an independent state around this time, and continued until it was conquered by the Almoravids in 1068. Following the defeat of the Barghawata in the 12th century, Arab tribes of Hilal and Sulaym descent settled in the region, mixing with the local Berbers, which led to widespread Arabization. During the 14th century, under the Merinids, Anfa rose in importance as a port. The last of the Merinids were ousted by a popular revolt in 1465.
In the early 15th century, the town became an independent state once again, and emerged as a safe harbour for pirates and privateers, leading to it being targeted by the Portuguese, who bombarded the town which led to its destruction in 1468. The town that grew up around it was called Casa Branca, meaning "white house" in Portuguese.
The town was finally reconstructed between 1756 and 1790 by Sultan Mohammed ben Abdallah, the grandson of Moulay Ismail and an ally of George Washington, with the help of Spaniards from the nearby emporium. The town was called ad-Dār al-Bayḍāʼ (الدار البيضاء), the Arabic translation of the Portuguese Casa Branca.
In the 19th century, the area's population began to grow as it became a major supplier of wool to the booming textile industry in Britain and shipping traffic increased (the British, in return, began importing gunpowder tea, used in Morocco's national drink, mint tea). By the 1860s, around 5,000 residents were there, and the population grew to around 10,000 by the late 1880s. Casablanca remained a modestly sized port, with a population reaching around 12,000 within a few years of the French conquest and arrival of French colonialists in 1906. By 1921, this rose to 110,000, largely through the development of shanty towns.
The Treaty of Algeciras of 1906 formalized French preeminence in Morocco and included three measures that directly impacted Casablanca: that French officers would control operations at the customs office and seize revenue as collateral for loans given by France, that the French holding company La Compagnie Marocaine would develop the port of Casablanca, and that a French-and-Spanish-trained police force would be assembled to patrol the port.
To build the port's breakwater, narrow-gauge track was laid in June 1907 for a small Decauville locomotive to connect the port to a quarry in Roches Noires, passing through the sacred Sidi Belyout graveyard. In resistance to this and the measures of the 1906 Treaty of Algeciras, tribesmen of the Chaouia attacked the locomotive, killing 9 Compagnie Marocaine laborers—3 French, 3 Italians, and 3 Spanish.
In response, the French bombarded the city in August 1907 with multiple gunboats and landed troops inside the town, causing severe damage and killing between 600 and 3,000 Moroccans. Estimates for the total casualties are as high as 15,000 dead and wounded. In the immediate aftermath of the bombardment and the deployment of French troops, the European homes and the Mellah, or Jewish quarter, were sacked, and the latter was also set ablaze.
As Oujda had already been occupied, the bombardment and military invasion of the city opened a western front to the French military conquest of Morocco.
French control of Casablanca was formalized March 1912 when the Treaty of Fes established the French Protectorat. Under French imperial control, Casablanca became a port of colonial extraction.
General Hubert Lyautey assigned the planning of the new colonial port city to Henri Prost. As he did in other Moroccan cities, Prost designed a European ville nouvelle outside the walls of the medina. In Casablanca, he also designed a new "ville indigène" to house Moroccans arriving from other cities.
Europeans formed almost half the population of Casablanca.
A 1937-1938 typhoid fever outbreak was exploited by colonial authorities to justify the appropriation of urban spaces in Casablanca. Moroccans residing in informal housing were cleared out of the center and displaced, notably to Carrières Centrales.
After Philippe Pétain of France signed the armistice with the Nazis, he ordered French troops in France's colonial empire to defend French territory against any aggressors—Allied or otherwise—applying a policy of "asymmetrical neutrality" in favour of the Germans. French colonists in Morocco generally supported Pétain, while Moroccans tended to favour de Gaulle and the Allies.
Operation Torch, which started on 8 November 1942, was the British-American invasion of French North Africa during the North African campaign of World War II. The Western Task Force, composed of American units led by Major General George S. Patton and Rear Admiral Henry Kent Hewitt, carried out the invasions of Mehdia, Fedhala, and Asfi. American forces captured Casablanca from Vichy control when France surrendered 11 November 1942, but the Naval Battle of Casablanca continued until American forces sank German submarine U-173 on 16 November.
Casablanca was the site of the Nouasseur Air Base, a large American air base used as the staging area for all American aircraft for the European Theatre of Operations during World War II. The airfield has since become Mohammed V International Airport.
Casablanca hosted the Anfa Conference (also called the Casablanca Conference) in January 1943. Prime Minister Winston Churchill and President Franklin D. Roosevelt discussed the progress of the war. Also in attendance were the Free France generals Charles de Gaulle and Henri Giraud, though they played minor roles and didn't participate in the military planning.
It was at this conference that the Allies adopted the doctrine of "unconditional surrender," meaning that the Axis powers would be fought until their defeat. Roosevelt also met privately with Sultan Muhammad V and expressed his support for Moroccan independence after the war. This became a turning point, as Moroccan nationalists were emboldened to openly seek complete independence.
During the 1940s and 1950s, Casablanca was a major centre of anti-French rioting.
7 April 1947, a massacre of working class Moroccans, carried out by Senegalese Tirailleurs in the service of the French colonial army, was instigated just as Sultan Muhammed V was due to make a speech in Tangier appealing for independence.
Riots in Casablanca took place from 7–8 December 1952, in response to the assassination of the Tunisian labor unionist Farhat Hached by La Main Rouge—the clandestine militant wing of French intelligence. Then, on 25 December 1953 (Christmas Day), Muhammad Zarqtuni orchestrated a bombing of Casablanca's Central Market in response to the forced exile of Sultan Muhammad V and the royal family on 20 August (Eid al-Adha) of that year.
Morocco gained independence from France in 1956.
4–7 January 1961, the city hosted an ensemble of progressive African leaders during the Casablanca Conference of 1961. Among those received by King Muhammad V were Gamal Abd An-Nasser, Kwame Nkrumah, Modibo Keïta, and Ahmed Sékou Touré, Ferhat Abbas.
Casablanca was a major departure point for Jews leaving Morocco through Operation Yachin, an operation conducted by Mossad to secretly migrate Moroccan Jews to Israel between November 1961 and spring 1964.
The 1965 student protests organized by the National Union of Popular Forces-affiliated National Union of Moroccan Students, which spread to cities around the country and devolved into riots, started on 22 March 1965, in front of Lycée Mohammed V in Casablanca. The protests started as a peaceful march to demand the right to public higher education for Morocco, but expanded to include concerns of labourers, the unemployed, and other marginalized segments of society, and devolved into vandalism and rioting. The riots were violently repressed by security forces with tanks and armoured vehicles; Moroccan authorities reported a dozen deaths while the UNFP reported more than 1,000.
King Hassan II blamed the events on teachers and parents, and declared in a speech to the nation on 30 March 1965: "There is no greater danger to the State than a so-called intellectual. It would have been better if you were all illiterate."
On 6 June 1981, the Casablanca Bread Riots took place, which were sparked by a sharp increase in the price of necessities such as butter, sugar, wheat flour, and cooking oil following a period of severe drought. Hassan II appointed the French-trained interior minister Driss Basri as hardliner, who would later become a symbol of the Years of Lead, with quelling the protests. The government stated that 66 people were killed and 100 were injured, while opposition leaders put the number of dead at 637, saying that many of these were killed by police and army gunfire.
In March 2000, more than 60 women's groups organized demonstrations in Casablanca proposing reforms to the legal status of women in the country. About 40,000 women attended, calling for a ban on polygamy and the introduction of divorce law (divorce being a purely religious procedure at that time). Although the counter-demonstration attracted half a million participants, the movement for change started in 2000 was influential on King Mohammed VI, and he enacted a new mudawana, or family law, in early 2004, meeting some of the demands of women's rights activists.
On 16 May 2003, 33 civilians were killed and more than 100 people were injured when Casablanca was hit by a multiple suicide bomb attack carried out by Moroccans and claimed by some to have been linked to al-Qaeda. Twelve suicide bombers struck five locations in the city.
Another series of suicide bombings struck the city in early 2007. These events illustrated some of the persistent challenges the city faces in addressing poverty and integrating disadvantaged neighborhoods and populations. One initiative to improve conditions in the city's disadvantaged neighborhoods was the creation of the Sidi Moumen Cultural Center.
As calls for reform spread through the Arab world in 2011, Moroccans joined in, but concessions by the ruler led to acceptance. However, in December, thousands of people demonstrated in several parts of the city, especially the city center near la Fontaine, desiring more significant political reforms. On 1 November 2023, Casablanca along with Ouarzazate joined UNESCO’s Creative Cities Network.
Casablanca is located on the Atlantic coast of the Chaouia Plains, which have historically been the breadbasket of Morocco. Apart from the Atlantic coast, the Bouskoura forest is the only natural attraction in the city. The forest was planted in the 20th century and consists mostly of eucalyptus, palm, and pine trees. It is located halfway to the city's international airport.
The only watercourse in Casablanca is oued Bouskoura, a small seasonal creek that until 1912 reached the Atlantic Ocean near the actual port. Most of oued Bouskoura's bed has been covered due to urbanization and only the part south of El Jadida road can now be seen. The closest permanent river to Casablanca is Oum Rabia, 70 km (43.50 mi) to the south-east.
Casablanca has a hot-summer Mediterranean climate (Köppen climate classification Csa). The cool Canary Current off the Atlantic coast moderates temperature variation, which results in a climate remarkably similar to that of coastal Los Angeles, with similar temperature ranges. The city has an annual average of 72 days with significant precipitation, which amounts to 412 mm (16.2 in) per year. The highest and lowest temperatures ever recorded in the city are 40.5 °C (104.9 °F) and −2.7 °C (27.1 °F), respectively. The highest amount of rainfall recorded in a single day is 178 mm (7.0 in) on 30 November 2010.
A 2019 paper published in PLOS One estimated that under Representative Concentration Pathway 4.5, a "moderate" scenario of climate change where global warming reaches ~2.5–3 °C (4.5–5.4 °F) by 2100, the climate of Casablanca in the year 2050 would most closely resemble the current climate of Tripoli, Libya. The annual temperature would increase by 1.7 °C (3.1 °F), and the temperature of the warmest month by 1.6 °C (2.9 °F), while the temperature of the coldest month would actually decrease by 0.2 °C (0.36 °F).
Moreover, according to the 2022 IPCC Sixth Assessment Report, Casablanca is one of 12 major African cities (Abidjan, Alexandria, Algiers, Cape Town, Casablanca, Dakar, Dar es Salaam, Durban, Lagos, Lomé, Luanda and Maputo) which would be the most severely affected by future sea level rise. It estimates that they would collectively sustain cumulative damages of USD 65 billion under RCP 4.5 and USD 86.5 billion for the high-emission scenario RCP 8.5 by the year 2050. Additionally, RCP 8.5 combined with the hypothetical impact from marine ice sheet instability at high levels of warming would involve up to 137.5 billion USD in damages, while the additional accounting for the "low-probability, high-damage events" may increase aggregate risks to USD 187 billion for the "moderate" RCP4.5, USD 206 billion for RCP8.5 and USD 397 billion under the high-end ice sheet instability scenario. Since sea level rise would continue for about 10,000 years under every scenario of climate change, future costs of sea level rise would only increase, especially without adaptation measures.
The Grand Casablanca region is considered the locomotive of the development of the Moroccan economy. It attracts 32% of the country's production units and 56% of industrial labor. The region uses 30% of the national electricity production. With MAD 93 billion, the region contributes to 44% of the industrial production of the kingdom. About 33% of national industrial exports, MAD 27 billion, comes from the Grand Casablanca; 30% of the Moroccan banking network is concentrated in Casablanca.
Casablanca is considered a global financial centre, ranking 53rd globally in the Global Financial Centres Index for the year 2021, outperforming many cities such as Mumbai, New Delhi, Berlin, Istanbul, Mexico City, Glasgow, Jakarta, Rio de Janeiro, São Paulo, Riyadh, Doha, Kuwait City, Cape Town, and Johannesburg. Casablanca is ranked among the emerging international contenders, and it is the largest financial center in Africa.
One of the most important Casablancan exports is phosphate. Other industries include fishing, fish canning, sawmills, furniture production, building materials, glass, textiles, electronics, leather work, processed food, spirits, soft drinks, and cigarettes.
The Casablanca and Mohammedia seaports activity represent 50% of the international commercial flows of Morocco. Almost the entire Casablanca waterfront is under development, mainly the construction of huge entertainment centres between the port and Hassan II Mosque, the Anfa Resort project near the business, entertainment and living centre of Megarama, the shopping and entertainment complex of Morocco Mall, as well as a complete renovation of the coastal walkway. The Sindbad park is planned to be totally renewed with rides, games and entertainment services.
Royal Air Maroc has its head office at the Casablanca-Anfa Airport. In 2004, it announced that it was moving its head office from Casablanca to a location in Province of Nouaceur, close to Mohammed V International Airport. The agreement to build the head office in Nouaceur was signed in 2009.
Casablanca is a commune, part of the region of Casablanca-Settat. The commune is divided into eight districts or prefectures, which are themselves divided into 16 subdivisions or arrondissements and one municipality. The districts and their subdivisions are:
The list of neighborhoods is indicative and not complete:
The commune of Casablanca recorded a population of 3,359,818 in the 2014 Moroccan census. About 98% live in urban areas. Around 25% of the population are under 15 years old, and 9% are over 60 years old. The population of the city is about 11% of the total population of Morocco. Grand Casablanca is also the largest urban area in the Maghreb. 99.9% of the population of Morocco are Arab and Berber Muslims. During the French protectorate in Morocco, European Christians formed almost half the population of Casablanca. Since Moroccan independence in 1956, the European population has decreased substantially. The city also is still home to a small community of Moroccan Christians, as well as a small group of foreign Roman Catholic and Protestant residents.
Jews have a long history in Casablanca. A Sephardic Jewish community was in Anfa up to the destruction of the city by the Portuguese in 1468. Jews were slow to return to the town, but by 1750, the Rabbi Elijah synagogue was built as the first Jewish synagogue in Casablanca. It was destroyed along with much of the town in the 1755 Lisbon earthquake.
In the mid-19th century, with commercial development through European economic penetration, industrial imports from Europe drove traditional Jewish crafts out of the market, costing many Jews in the interior their traditional livelihoods. Moroccan Jews started migrating from the interior to coastal cities such as Essaouira, Mazagan, Asfi, and later Casablanca for economic opportunity, participating in trade with Europeans and the development of those cities.
Casablanca's mellah was ravaged in the bombardment of Casablanca of 1907, the beginning of the French invasion of Morocco from the West.
Jean-Louis Cohen highlights the roll of Jewish patrons in the architecture and urban development of Casablanca, particularly in construction of the overwhelming majority of the city's tallest buildings during the interwar period. One notable example of this trend is the Lévy-Bendayan Building designed by Marius Boyer.
Approximately 28,000 Moroccan Jews immigrated to the State of Israel between 1948 and 1951, many through Casablanca. Casablanca then became a departure point in Operation Yachin, the covert Mossad-organized migration operation from 1961 to 1964. In 2018 it was estimated that there were only 2,500 Moroccan Jews living in Casablanca, while according to the World Jewish Congress there were only 1,000 Moroccan Jews remaining.
Today, the Jewish cemetery of Casablanca is one of the major cemeteries of the city, and many synagogues remain in service, but the city's Jewish community has dwindled. The Moroccan Jewish Museum is a museum established in the city in 1997.
Public: University of Hassan II Casablanca
Private:
International schools:
Most of the city's places of worship are Muslim mosques. Some of the city's synagogues, such as Ettedgui Synagogue, also remain. There are also Christian churches; some remain in use — particularly by the West African migrant community — while many of the churches built during the colonial period have been repurposed, such as Church of the Sacred Heart.
Casablanca is home to two popular football clubs: Wydad Casablanca and Raja Casablanca—which are rivals. Raja's symbol is an eagle and Wydad's symbol is a star and crescent, a symbol of Islam. These two popular clubs have produced some of Morocco's best players, such as: Salaheddine Bassir, Abdelmajid Dolmy, Baddou Zaki, Aziz Bouderbala, and Noureddine Naybet. Other football teams on top of these two major teams based in the city of Casablanca include Rachad Bernoussi, TAS de Casablanca, Majd Al Madina, and Racing Casablanca.
Raja CA, founded in 1949, compete in Botola and play their home games at the Stade Mohammed V. The club is known for their supporters and is one of the most supported teams in Africa. Wydad AC, founded in 1937, also compete in Botola and play their home games at the Stade Mohammed V. Both have a strong reputation on continental competitions, having both won the CAF Champions League three times.
Casablanca hosted eight African Champions League finals, all eight at the Stade Mohammed V. The Stade also hosted the 2018 CHAN Final (which Morocco won) and 1988 African Cup of Nations final. It could potentially host matches for the 2030 FIFA World Cup including the final.
Casablanca hosts The Grand Prix Hassan II, a professional men's tennis tournament of the ATP tour. It first began in 1986, and is played on clay courts type at Complexe Al Amal.
Notable winners of the Hassan II Grand-Prix are Thomas Muster in 1990, Hicham Arazi in 1997, Younes El Aynaoui in 2002, and Stanislas Wawrinka in 2010.
Casablanca staged the 1961 Pan Arab Games, the 1983 Mediterranean Games, and games during the 1988 Africa Cup of Nations. Morocco was scheduled to host the 2015 African Nations Cup, but decided to decline due to Ebola fears. Morocco was expelled and the tournament was held in Equatorial Guinea. However, Morocco will host the 2025 edition after original host Guinea was stripped from hosting rights due to lack of readiness and preparation delays.
The Grand Stade de Casablanca is the proposed title of the planned football stadium to be built in the city. Once completed in 2025, it will be used mostly for football matches and will serve as the home of Raja Casablanca, Wydad Casablanca, and the Morocco national football team. The stadium was designed with a capacity of 93,000 spectators, making it one of the highest-capacity stadiums in Africa. Once completed, it will replace the Stade Mohamed V. The initial idea of the stadium was for the 2010 FIFA World Cup, for which Morocco lost their bid to South Africa. Nevertheless, the Moroccan government supported the decision to go ahead with the plans. It will be completed in 2025. The idea of the stadium was also for the 2026 FIFA World Cup, for which Morocco lost their bid to Canada, Mexico and United States. It will now host the 2030 FIFA World Cup which Morocco will co-host with two European nations Spain and Portugal. It is expected to be complete by 2028.
The city is host to the International Casablanca Marathon, a 26.2-mile road race that draws international competition. The race was founded in 2008 and is a member of the Association of International Marathons and Distance Races Archived 17 February 2022 at the Wayback Machine.
Haja El Hamdaouia, one of the most iconic figures in aita music, was born in Casablanca. Nass El Ghiwane, led by Larbi Batma, came out of Hay Mohammadi in Casablanca. Naima Samih of Derb Sultan gained prominence through the program Mawahib (مواهب). Abdelhadi Belkhayat and Abdelwahab Doukkali are musicians specializing in traditional Moroccan Arabic popular music. Zina Daoudia, Abdelaziz Stati, Abdellah Daoudi, and Said Senhaji are notable Moroccan chaabi musicians.
Abdelakabir Faradjallah founded Attarazat Addahabia, a Moroccan funk band, in 1968. Fadoul, another funk band, formed in the 1970s.
Hoba Hoba Spirit also formed in Casablanca, and is still based there. Casablanca has a thriving hiphop scene, with artists such as El Grande Toto, Don Big, 7liwa, and Issam Harris.
Casablanca hosts numerous music festivals, such as Jazzablanca and L'Boulevard, as well as a museum dedicated to Andalusi music, Dar ul-Aala.
Francesco Cavalli's L'Ormindo is a 17th century Venetian opera set between Anfa and Fes.
The French writer Antoine de Saint-Exupéry is associated with Casablanca.
Driss Chraïbi's novel The Simple Past takes place in Casablanca. Mohamed Zafzaf lived in Maarif while writing and teaching at a high school.
Lamalif, a radical leftist political and cultural magazine, was based in Casablanca.
Casablanca's International Book Fair is held at the fair grounds opposite Hassan II Mosque annually in February.
Tayeb Saddiki, described as the father of Moroccan theater, grew up in Casablanca and made his career there. Hanane el-Fadili and Hassan El Fad are popular comedians from Casablanca. Gad Elmaleh is another comedian from Casablanca, though he has made his career abroad.
The École des Beaux-Arts of Casablanca was founded in 1919 by a French Orientalist painter named Édouard Brindeau de Jarny, who started his career teaching drawing at Lycée Lyautey. The Casablanca School—a Modernist art movement and collective including artists such as Farid Belkahia, Mohamed Melehi, and Mohammed Chabâa—developed out of the École des Beaux-Arts of Casablanca in the late 1960s.
The Academy of Traditional Arts, part of the Hassan II Mosque complex, was founded 31 October 2012.
L'Uzine is a community-based art and culture space in Casablanca.
Rebel Spirit published The Casablanca Guide (الدليل البيضاوي, Le Guide Casablancais) a comic book about life in Casablanca.
Sbagha Bagha is a street art festival during which murals are created on the sides of apartment buildings.
Postcard companies such as Léon & Lévy were active in Casablanca. Gabriel Veyre also worked and eventually died in Casablanca.
Marcelin Flandrin (1889-1957), a French military photographer, settled in Casablanca and recorded much of the early colonial period in Morocco with his photography. With his staged nude postcard photos taken in Casablanca's colonial brothel quarter, Flandrin was also responsible for disseminating the orientalist image of Moroccan women as sexual objects.
Casablanca has a thriving street photography scene. Yoriyas is prominent among photographers capturing the economic capital's street scenes, and has attracted international attention.
In the first half of the 20th century, Casablanca had many movie theaters, such as Cinema Rialto, Cinema Lynx and Cinema Vox, the largest in Africa when it was built.
The 1942 American film Casablanca is set in Casablanca and has had a lasting impact on the city's image although it was filmed in the United States. Salut Casa! was a propaganda film brandishing France's purported colonial triumph in its mission civilisatrice in the city.
Mostafa Derkaoui's revolutionary independent film About Some Meaningless Events (1974) took place in Casablanca. It was the main subject of Ali Essafi's documentary Before the Dying of the Light.
Love in Casablanca (1991), starring Abdelkarim Derqaoui and Muna Fettou, is one of the first Moroccan films to deal with Morocco's complex realities and to depict life in Casablanca with verisimilitude. Nour-Eddine Lakhmari's Casanegra (2008) depicts the harsh realities of Casablanca's working classes. The films Ali Zaoua (2000), Horses of God (2012), and Razzia (2017) of Nabil Ayouch, a French director of Moroccan heritage, deal with street crime, terrorism and social issues in Casablanca, respectively. The events in Meryem Benm'Barek-Aloïsi's 2018 film Sofia revolve around an illegitimate pregnancy in Casablanca. Ahmed El Maanouni, Hicham Lasri and Said Naciri are also from Casablanca.
Casablanca's architecture and urban development are historically significant. The city is home to many notable buildings in a variety of styles, including traditional Moroccan architecture, various colonial architectural styles, Art Nouveau, Art Deco, Neo-Mauresque, Streamline Moderne, Modernism, Brutalism, and more. During the French Protectorate, the French government described Casablanca as a "laboratory of urbanism."
The work of the Groupe des Architectes Modernes Marocains (GAMMA) on public housing projects—such as Carrières Centrales in Hay Mohammadi—in a style described as vernacular modernism influenced modernist architecture around the world.
Casamémoire and MAMMA. are two organizations dedicated to the preservation and appreciation of the city's architectural heritage.
The Casablanca Tramway is the rapid transit tram system in Casablanca. As of 2019, the network consists of two lines covering 47.5 km (30 mi), with 71 stops; further lines (T3 and T4) are under construction.
Casablanca is also planning to introduce a rapid bus network called the Casablanca Busway. The network will consist of two lines, BW1 and BW2. As of October 2023, the system was operating in a testing phase and its public opening, initially planned for July 2023, was delayed due to technical problems.
Since the 1970s, Casablanca had planned to build a metro system to offer some relief to the problems of traffic congestion and poor air quality. However, the city council voted to abandon the metro project in 2014 due to high costs, and decided to continue expanding the already operating tram system instead.
Casablanca's main airport is Mohammed V International Airport, Morocco's busiest airport. Regular domestic flights serve Marrakech, Rabat, Agadir, Oujda, Tangier, Al Hoceima, and Laayoune, as well as other cities.
Casablanca is well-served by international flights to Europe, especially French and Spanish airports, and has regular connections to North American, Middle Eastern and sub-Saharan African destinations. New York City, Montreal, Paris, Washington D.C., London and Dubai are important primary destinations.
The older, smaller Casablanca-Anfa Airport to the west of the city, served certain destinations including Damascus and Tunis, and was largely closed to international civilian traffic in 2006. It was eventually demolished to make way for construction of the "Casablanca Finance City", the new heart of the city of Casablanca. Casablanca Tit Mellil Airport is located in the nearby community of Tit Mellil.
Compagnie de Transports au Maroc (CTM) offers private intercity coach buses on various lines run servicing most notable Moroccan towns, as well as a number of European cities. These run from the CTM Bus Station on Leo Africanus Street near the Central Market in downtown Casablanca. Supratours, an affiliate of ONCF, also offers coach bus service at a slightly lower cost, departing from a station on Wilad Zian Street. There is another bus station farther down on the same street called the Wilad Zian Bus Station; this station is the country's largest bus station, serving over 800 buses daily, catering more to Morocco's lower income population.
Registered taxis in Casablanca are coloured red and known as petits taxis (small taxis), or coloured white and known as grands taxis (big taxis). As is standard Moroccan practice, petits taxis, typically small-four door Dacia Logan, Peugeot 207, or similar cars, provide metered cab service in the central metropolitan areas. Grands taxis, generally older Mercedes-Benz sedans, provide shared mini-bus like service within the city on predefined routes, or shared intercity service. Grands taxis may also be hired for private service by the hour or day.
Casablanca is served by three main railway stations run by the national rail service, the ONCF.
Casa-Voyageurs is the main intercity station, from which trains run south to Marrakech or El Jadida and north to Mohammedia and Rabat, and then on either to Tangier or Meknes, Fes, Taza and Oujda/Nador. It also serves as the southern terminus of the Al-Boraq high speed line from Tangier. A dedicated airport shuttle service to Mohammed V International Airport also has its primary in-city stop at this station, for connections on to further destinations.
Casa-Port serves primarily commuter trains such as the Train Navette Rapide (TNR or Aouita) operating on the Casablanca – Kenitra rail corridor, with some connecting trains running on to Gare de Casa-Voyageurs. The station provides a direct interchange between train and shipping services, and is located near several port-area hotels. It is the nearest station to the old town of Casablanca, and to the modern city centre, around the landmark Casablanca Twin Center. Casa-Port station is being rebuilt in a modern and enlarged configuration. During the construction, the station is still operational. From 2013, it will provide a close connection from the rail network to the city's new tram network.
Casa-Oasis was originally a suburban commuter station which was fully redesigned and rebuilt in the early 21st century, and officially reopened in 2005 as a primary city rail station. Owing to its new status, all southern intercity train services to and from Casa-Voyageurs now call at Casa-Oasis. ONCF stated in 2005 that the refurbishment and upgrading of Casa-Oasis to intercity standards was intended to relieve passenger congestion at Casa-Voyageurs station.
Although Mohammed V International Airport receives most international flights into Morocco, international tourism in Casablanca is not as developed as it is in cities such as Fes and Marrakech.
The Hassan II Mosque, which is the second largest mosque in Africa and the seventh largest in the world, is the city's main tourist attraction. Visitors also come to see the city's rich architectural heritage.
Popular sites for national tourism include shopping centers such as Morocco Mall, Anfa Place, the Marina Shopping Center, and the Tachfine Center. Additional sites include the Corniche and the beach of Ain Diab, and parks such as the Arab League Park or the Sindibad theme park.
Casablanca is twinned with:
Casablanca also has cooperation agreements with:
33°32′N 7°35′W / 33.533°N 7.583°W / 33.533; -7.583 | [
{
"paragraph_id": 0,
"text": "Casablanca, also known by its Arabic name Dar el-Beida (Arabic: الدار البيضاء, romanized: ad-Dār al-Bayḍāʾ, [adˈdaːru ɫbajdˤaːʔ], lit. 'White House'; Berber languages: ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ, romanized: Taddart Tumlilt), is the largest city in Morocco and the country's economic and business center. Located on the Atlantic coast of the Chaouia plain in the central-western part of Morocco, the city has a population of about 3.71 million in the urban area, and over 4.27 million in the Greater Casablanca, making it the most populous city in the Maghreb region, and the eighth-largest in the Arab world.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Casablanca is Morocco's chief port, with the Port of Casablanca being one of the largest artificial ports in the world, and the second largest port in North Africa, after Tanger-Med (40 km (25 mi) east of Tangier). Casablanca also hosts the primary naval base for the Royal Moroccan Navy.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Casablanca is considered a Global Financial Centre, ranking 54th globally in the Global Financial Centres Index rankings for the year 2022, outperforming cities such as New Delhi, Jakarta, Istanbul, and Mexico City. Casablanca is ranked among the Emerging International contenders, and it is considered the largest financial center in Africa. The leading Moroccan companies and many of the larger American and European corporations doing business in the country have their headquarters and main industrial facilities in Casablanca. Recent industrial statistics show Casablanca is the primary industrial zone of the nation.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Before the 15th century, the settlement at what is now Casablanca had been called Anfa, rendered in European sources variously as El-Anfa, Anafa or Anaffa, Anafe, Anife, Anafee, Nafe, and Nafee. Ibn Khaldun ascribed the name to the Anfaça, a branch of the Auréba [ar] tribe of the Maghreb, though the sociologist André Adam refuted this claim due to the absence of the third syllable. Nahum Slouschz gave a Hebrew etymology, citing the Lexicon of Gesenius: anâphâh (a type of bird) or anaph (face, figure), though Adam refuted this arguing that even a Judaized population would still have spoken Tamazight. Adam also refuted an Arabic etymology, أنف (anf, \"nose\"), as the city predated the linguistic Arabization of the country, and the term anf was not used to describe geographic areas. Adam affirmed a Tamazight etymology—from anfa \"hill,\" anfa \"promontory on the sea,\" ifni \"sandy beach,\" or anfa \"threshing floor\"—although he determined the available information insufficient to establish exactly which. The name Anfa is now rendered in Neo-Tifinagh as ⴰⵏⴼⴰ.",
"title": "Etymology"
},
{
"paragraph_id": 4,
"text": "The name \"Anfa\" was used in maps until around 1830—in some until 1851—which Adam attributes to the tendency of cartographers to replicate previous maps.",
"title": "Etymology"
},
{
"paragraph_id": 5,
"text": "When Sultan Mohammed ben Abdallah (c. 1710–1790) rebuilt the city after its destruction in the earthquake of 1755, it was renamed \"ad-Dār al-Bayḍāʾ \" (الدار البيضاء The White House), though in vernacular use it was pronounced \"Dar al-Baiḍā\" (دار البيضاء literally House of the White, although in Moroccan Arabic vernacular it retains the original sense of The White House).",
"title": "Etymology"
},
{
"paragraph_id": 6,
"text": "The origins of the name \"Casablanca\" are unclear, although several theories have been suggested. André Adam mentions the legend of the Sufi saint and merchant Allal al-Qairawani, who supposedly came from Tunisia and settled in Casablanca with his wife Lalla al-Baiḍāʾ (لالة البيضاء White Lady). The villagers of Mediouna would reportedly provision themselves at \"Dar al-Baiḍāʾ\" (دار البيضاء House of the White).",
"title": "Etymology"
},
{
"paragraph_id": 7,
"text": "In fact, on a low hill slightly inland above the ruins of Anfa and just to the west of today's city centre, it appears there was a white-washed structure, possibly a Sufi zawiya that acted as a landmark to sailors. The Portuguese cartographer Duarte Pacheco wrote in the early 16th century that the city could easily be identified by a tower, and nautical guides from the late 19th century still mentioned a \"white tower\" as a point of reference. The Portuguese mariners calqued the modern Arabic name to \"Casa Branca\" ([kazɐ'bɾɐ̃kɐ] White House) in place of Anfa. The name \"Casablanca\" was then a calque of the Portuguese name when the Spanish took over trade through the Iberian Union.",
"title": "Etymology"
},
{
"paragraph_id": 8,
"text": "During the French protectorate in Morocco, the name remained Casablanca (pronounced [kazablɑ̃ka]). Today, Moroccans still call the city Casablanca or Casa for short, or by its Arabic name, pronounced d-Dār l-Biḍā in Moroccan Arabic or ad-Dāru-l-Bayḍā' in Standard Arabic.",
"title": "Etymology"
},
{
"paragraph_id": 9,
"text": "The area which is today Casablanca was founded and settled by Berbers by at least the seventh century BC. It was used as a port by the Phoenicians and later the Romans. In his book Description of Africa, Leo Africanus refers to ancient Casablanca as \"Anfa\", a great city founded in the Berber kingdom of Barghawata in 744 AD. He believed Anfa was the most \"prosperous city on the Atlantic Coast because of its fertile land.\" Barghawata rose as an independent state around this time, and continued until it was conquered by the Almoravids in 1068. Following the defeat of the Barghawata in the 12th century, Arab tribes of Hilal and Sulaym descent settled in the region, mixing with the local Berbers, which led to widespread Arabization. During the 14th century, under the Merinids, Anfa rose in importance as a port. The last of the Merinids were ousted by a popular revolt in 1465.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In the early 15th century, the town became an independent state once again, and emerged as a safe harbour for pirates and privateers, leading to it being targeted by the Portuguese, who bombarded the town which led to its destruction in 1468. The town that grew up around it was called Casa Branca, meaning \"white house\" in Portuguese.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "The town was finally reconstructed between 1756 and 1790 by Sultan Mohammed ben Abdallah, the grandson of Moulay Ismail and an ally of George Washington, with the help of Spaniards from the nearby emporium. The town was called ad-Dār al-Bayḍāʼ (الدار البيضاء), the Arabic translation of the Portuguese Casa Branca.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "In the 19th century, the area's population began to grow as it became a major supplier of wool to the booming textile industry in Britain and shipping traffic increased (the British, in return, began importing gunpowder tea, used in Morocco's national drink, mint tea). By the 1860s, around 5,000 residents were there, and the population grew to around 10,000 by the late 1880s. Casablanca remained a modestly sized port, with a population reaching around 12,000 within a few years of the French conquest and arrival of French colonialists in 1906. By 1921, this rose to 110,000, largely through the development of shanty towns.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "The Treaty of Algeciras of 1906 formalized French preeminence in Morocco and included three measures that directly impacted Casablanca: that French officers would control operations at the customs office and seize revenue as collateral for loans given by France, that the French holding company La Compagnie Marocaine would develop the port of Casablanca, and that a French-and-Spanish-trained police force would be assembled to patrol the port.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "To build the port's breakwater, narrow-gauge track was laid in June 1907 for a small Decauville locomotive to connect the port to a quarry in Roches Noires, passing through the sacred Sidi Belyout graveyard. In resistance to this and the measures of the 1906 Treaty of Algeciras, tribesmen of the Chaouia attacked the locomotive, killing 9 Compagnie Marocaine laborers—3 French, 3 Italians, and 3 Spanish.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "In response, the French bombarded the city in August 1907 with multiple gunboats and landed troops inside the town, causing severe damage and killing between 600 and 3,000 Moroccans. Estimates for the total casualties are as high as 15,000 dead and wounded. In the immediate aftermath of the bombardment and the deployment of French troops, the European homes and the Mellah, or Jewish quarter, were sacked, and the latter was also set ablaze.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "As Oujda had already been occupied, the bombardment and military invasion of the city opened a western front to the French military conquest of Morocco.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "French control of Casablanca was formalized March 1912 when the Treaty of Fes established the French Protectorat. Under French imperial control, Casablanca became a port of colonial extraction.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "General Hubert Lyautey assigned the planning of the new colonial port city to Henri Prost. As he did in other Moroccan cities, Prost designed a European ville nouvelle outside the walls of the medina. In Casablanca, he also designed a new \"ville indigène\" to house Moroccans arriving from other cities.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "Europeans formed almost half the population of Casablanca.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "A 1937-1938 typhoid fever outbreak was exploited by colonial authorities to justify the appropriation of urban spaces in Casablanca. Moroccans residing in informal housing were cleared out of the center and displaced, notably to Carrières Centrales.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "After Philippe Pétain of France signed the armistice with the Nazis, he ordered French troops in France's colonial empire to defend French territory against any aggressors—Allied or otherwise—applying a policy of \"asymmetrical neutrality\" in favour of the Germans. French colonists in Morocco generally supported Pétain, while Moroccans tended to favour de Gaulle and the Allies.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "Operation Torch, which started on 8 November 1942, was the British-American invasion of French North Africa during the North African campaign of World War II. The Western Task Force, composed of American units led by Major General George S. Patton and Rear Admiral Henry Kent Hewitt, carried out the invasions of Mehdia, Fedhala, and Asfi. American forces captured Casablanca from Vichy control when France surrendered 11 November 1942, but the Naval Battle of Casablanca continued until American forces sank German submarine U-173 on 16 November.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "Casablanca was the site of the Nouasseur Air Base, a large American air base used as the staging area for all American aircraft for the European Theatre of Operations during World War II. The airfield has since become Mohammed V International Airport.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "Casablanca hosted the Anfa Conference (also called the Casablanca Conference) in January 1943. Prime Minister Winston Churchill and President Franklin D. Roosevelt discussed the progress of the war. Also in attendance were the Free France generals Charles de Gaulle and Henri Giraud, though they played minor roles and didn't participate in the military planning.",
"title": "History"
},
{
"paragraph_id": 25,
"text": "It was at this conference that the Allies adopted the doctrine of \"unconditional surrender,\" meaning that the Axis powers would be fought until their defeat. Roosevelt also met privately with Sultan Muhammad V and expressed his support for Moroccan independence after the war. This became a turning point, as Moroccan nationalists were emboldened to openly seek complete independence.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "During the 1940s and 1950s, Casablanca was a major centre of anti-French rioting.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "7 April 1947, a massacre of working class Moroccans, carried out by Senegalese Tirailleurs in the service of the French colonial army, was instigated just as Sultan Muhammed V was due to make a speech in Tangier appealing for independence.",
"title": "History"
},
{
"paragraph_id": 28,
"text": "Riots in Casablanca took place from 7–8 December 1952, in response to the assassination of the Tunisian labor unionist Farhat Hached by La Main Rouge—the clandestine militant wing of French intelligence. Then, on 25 December 1953 (Christmas Day), Muhammad Zarqtuni orchestrated a bombing of Casablanca's Central Market in response to the forced exile of Sultan Muhammad V and the royal family on 20 August (Eid al-Adha) of that year.",
"title": "History"
},
{
"paragraph_id": 29,
"text": "Morocco gained independence from France in 1956.",
"title": "History"
},
{
"paragraph_id": 30,
"text": "4–7 January 1961, the city hosted an ensemble of progressive African leaders during the Casablanca Conference of 1961. Among those received by King Muhammad V were Gamal Abd An-Nasser, Kwame Nkrumah, Modibo Keïta, and Ahmed Sékou Touré, Ferhat Abbas.",
"title": "History"
},
{
"paragraph_id": 31,
"text": "Casablanca was a major departure point for Jews leaving Morocco through Operation Yachin, an operation conducted by Mossad to secretly migrate Moroccan Jews to Israel between November 1961 and spring 1964.",
"title": "History"
},
{
"paragraph_id": 32,
"text": "The 1965 student protests organized by the National Union of Popular Forces-affiliated National Union of Moroccan Students, which spread to cities around the country and devolved into riots, started on 22 March 1965, in front of Lycée Mohammed V in Casablanca. The protests started as a peaceful march to demand the right to public higher education for Morocco, but expanded to include concerns of labourers, the unemployed, and other marginalized segments of society, and devolved into vandalism and rioting. The riots were violently repressed by security forces with tanks and armoured vehicles; Moroccan authorities reported a dozen deaths while the UNFP reported more than 1,000.",
"title": "History"
},
{
"paragraph_id": 33,
"text": "King Hassan II blamed the events on teachers and parents, and declared in a speech to the nation on 30 March 1965: \"There is no greater danger to the State than a so-called intellectual. It would have been better if you were all illiterate.\"",
"title": "History"
},
{
"paragraph_id": 34,
"text": "On 6 June 1981, the Casablanca Bread Riots took place, which were sparked by a sharp increase in the price of necessities such as butter, sugar, wheat flour, and cooking oil following a period of severe drought. Hassan II appointed the French-trained interior minister Driss Basri as hardliner, who would later become a symbol of the Years of Lead, with quelling the protests. The government stated that 66 people were killed and 100 were injured, while opposition leaders put the number of dead at 637, saying that many of these were killed by police and army gunfire.",
"title": "History"
},
{
"paragraph_id": 35,
"text": "In March 2000, more than 60 women's groups organized demonstrations in Casablanca proposing reforms to the legal status of women in the country. About 40,000 women attended, calling for a ban on polygamy and the introduction of divorce law (divorce being a purely religious procedure at that time). Although the counter-demonstration attracted half a million participants, the movement for change started in 2000 was influential on King Mohammed VI, and he enacted a new mudawana, or family law, in early 2004, meeting some of the demands of women's rights activists.",
"title": "History"
},
{
"paragraph_id": 36,
"text": "On 16 May 2003, 33 civilians were killed and more than 100 people were injured when Casablanca was hit by a multiple suicide bomb attack carried out by Moroccans and claimed by some to have been linked to al-Qaeda. Twelve suicide bombers struck five locations in the city.",
"title": "History"
},
{
"paragraph_id": 37,
"text": "Another series of suicide bombings struck the city in early 2007. These events illustrated some of the persistent challenges the city faces in addressing poverty and integrating disadvantaged neighborhoods and populations. One initiative to improve conditions in the city's disadvantaged neighborhoods was the creation of the Sidi Moumen Cultural Center.",
"title": "History"
},
{
"paragraph_id": 38,
"text": "As calls for reform spread through the Arab world in 2011, Moroccans joined in, but concessions by the ruler led to acceptance. However, in December, thousands of people demonstrated in several parts of the city, especially the city center near la Fontaine, desiring more significant political reforms. On 1 November 2023, Casablanca along with Ouarzazate joined UNESCO’s Creative Cities Network.",
"title": "History"
},
{
"paragraph_id": 39,
"text": "Casablanca is located on the Atlantic coast of the Chaouia Plains, which have historically been the breadbasket of Morocco. Apart from the Atlantic coast, the Bouskoura forest is the only natural attraction in the city. The forest was planted in the 20th century and consists mostly of eucalyptus, palm, and pine trees. It is located halfway to the city's international airport.",
"title": "Geography"
},
{
"paragraph_id": 40,
"text": "The only watercourse in Casablanca is oued Bouskoura, a small seasonal creek that until 1912 reached the Atlantic Ocean near the actual port. Most of oued Bouskoura's bed has been covered due to urbanization and only the part south of El Jadida road can now be seen. The closest permanent river to Casablanca is Oum Rabia, 70 km (43.50 mi) to the south-east.",
"title": "Geography"
},
{
"paragraph_id": 41,
"text": "Casablanca has a hot-summer Mediterranean climate (Köppen climate classification Csa). The cool Canary Current off the Atlantic coast moderates temperature variation, which results in a climate remarkably similar to that of coastal Los Angeles, with similar temperature ranges. The city has an annual average of 72 days with significant precipitation, which amounts to 412 mm (16.2 in) per year. The highest and lowest temperatures ever recorded in the city are 40.5 °C (104.9 °F) and −2.7 °C (27.1 °F), respectively. The highest amount of rainfall recorded in a single day is 178 mm (7.0 in) on 30 November 2010.",
"title": "Geography"
},
{
"paragraph_id": 42,
"text": "A 2019 paper published in PLOS One estimated that under Representative Concentration Pathway 4.5, a \"moderate\" scenario of climate change where global warming reaches ~2.5–3 °C (4.5–5.4 °F) by 2100, the climate of Casablanca in the year 2050 would most closely resemble the current climate of Tripoli, Libya. The annual temperature would increase by 1.7 °C (3.1 °F), and the temperature of the warmest month by 1.6 °C (2.9 °F), while the temperature of the coldest month would actually decrease by 0.2 °C (0.36 °F).",
"title": "Geography"
},
{
"paragraph_id": 43,
"text": "Moreover, according to the 2022 IPCC Sixth Assessment Report, Casablanca is one of 12 major African cities (Abidjan, Alexandria, Algiers, Cape Town, Casablanca, Dakar, Dar es Salaam, Durban, Lagos, Lomé, Luanda and Maputo) which would be the most severely affected by future sea level rise. It estimates that they would collectively sustain cumulative damages of USD 65 billion under RCP 4.5 and USD 86.5 billion for the high-emission scenario RCP 8.5 by the year 2050. Additionally, RCP 8.5 combined with the hypothetical impact from marine ice sheet instability at high levels of warming would involve up to 137.5 billion USD in damages, while the additional accounting for the \"low-probability, high-damage events\" may increase aggregate risks to USD 187 billion for the \"moderate\" RCP4.5, USD 206 billion for RCP8.5 and USD 397 billion under the high-end ice sheet instability scenario. Since sea level rise would continue for about 10,000 years under every scenario of climate change, future costs of sea level rise would only increase, especially without adaptation measures.",
"title": "Geography"
},
{
"paragraph_id": 44,
"text": "The Grand Casablanca region is considered the locomotive of the development of the Moroccan economy. It attracts 32% of the country's production units and 56% of industrial labor. The region uses 30% of the national electricity production. With MAD 93 billion, the region contributes to 44% of the industrial production of the kingdom. About 33% of national industrial exports, MAD 27 billion, comes from the Grand Casablanca; 30% of the Moroccan banking network is concentrated in Casablanca.",
"title": "Economy"
},
{
"paragraph_id": 45,
"text": "Casablanca is considered a global financial centre, ranking 53rd globally in the Global Financial Centres Index for the year 2021, outperforming many cities such as Mumbai, New Delhi, Berlin, Istanbul, Mexico City, Glasgow, Jakarta, Rio de Janeiro, São Paulo, Riyadh, Doha, Kuwait City, Cape Town, and Johannesburg. Casablanca is ranked among the emerging international contenders, and it is the largest financial center in Africa.",
"title": "Economy"
},
{
"paragraph_id": 46,
"text": "One of the most important Casablancan exports is phosphate. Other industries include fishing, fish canning, sawmills, furniture production, building materials, glass, textiles, electronics, leather work, processed food, spirits, soft drinks, and cigarettes.",
"title": "Economy"
},
{
"paragraph_id": 47,
"text": "The Casablanca and Mohammedia seaports activity represent 50% of the international commercial flows of Morocco. Almost the entire Casablanca waterfront is under development, mainly the construction of huge entertainment centres between the port and Hassan II Mosque, the Anfa Resort project near the business, entertainment and living centre of Megarama, the shopping and entertainment complex of Morocco Mall, as well as a complete renovation of the coastal walkway. The Sindbad park is planned to be totally renewed with rides, games and entertainment services.",
"title": "Economy"
},
{
"paragraph_id": 48,
"text": "Royal Air Maroc has its head office at the Casablanca-Anfa Airport. In 2004, it announced that it was moving its head office from Casablanca to a location in Province of Nouaceur, close to Mohammed V International Airport. The agreement to build the head office in Nouaceur was signed in 2009.",
"title": "Economy"
},
{
"paragraph_id": 49,
"text": "Casablanca is a commune, part of the region of Casablanca-Settat. The commune is divided into eight districts or prefectures, which are themselves divided into 16 subdivisions or arrondissements and one municipality. The districts and their subdivisions are:",
"title": "Administrative divisions"
},
{
"paragraph_id": 50,
"text": "The list of neighborhoods is indicative and not complete:",
"title": "Administrative divisions"
},
{
"paragraph_id": 51,
"text": "The commune of Casablanca recorded a population of 3,359,818 in the 2014 Moroccan census. About 98% live in urban areas. Around 25% of the population are under 15 years old, and 9% are over 60 years old. The population of the city is about 11% of the total population of Morocco. Grand Casablanca is also the largest urban area in the Maghreb. 99.9% of the population of Morocco are Arab and Berber Muslims. During the French protectorate in Morocco, European Christians formed almost half the population of Casablanca. Since Moroccan independence in 1956, the European population has decreased substantially. The city also is still home to a small community of Moroccan Christians, as well as a small group of foreign Roman Catholic and Protestant residents.",
"title": "Demographics"
},
{
"paragraph_id": 52,
"text": "Jews have a long history in Casablanca. A Sephardic Jewish community was in Anfa up to the destruction of the city by the Portuguese in 1468. Jews were slow to return to the town, but by 1750, the Rabbi Elijah synagogue was built as the first Jewish synagogue in Casablanca. It was destroyed along with much of the town in the 1755 Lisbon earthquake.",
"title": "Demographics"
},
{
"paragraph_id": 53,
"text": "In the mid-19th century, with commercial development through European economic penetration, industrial imports from Europe drove traditional Jewish crafts out of the market, costing many Jews in the interior their traditional livelihoods. Moroccan Jews started migrating from the interior to coastal cities such as Essaouira, Mazagan, Asfi, and later Casablanca for economic opportunity, participating in trade with Europeans and the development of those cities.",
"title": "Demographics"
},
{
"paragraph_id": 54,
"text": "Casablanca's mellah was ravaged in the bombardment of Casablanca of 1907, the beginning of the French invasion of Morocco from the West.",
"title": "Demographics"
},
{
"paragraph_id": 55,
"text": "Jean-Louis Cohen highlights the roll of Jewish patrons in the architecture and urban development of Casablanca, particularly in construction of the overwhelming majority of the city's tallest buildings during the interwar period. One notable example of this trend is the Lévy-Bendayan Building designed by Marius Boyer.",
"title": "Demographics"
},
{
"paragraph_id": 56,
"text": "Approximately 28,000 Moroccan Jews immigrated to the State of Israel between 1948 and 1951, many through Casablanca. Casablanca then became a departure point in Operation Yachin, the covert Mossad-organized migration operation from 1961 to 1964. In 2018 it was estimated that there were only 2,500 Moroccan Jews living in Casablanca, while according to the World Jewish Congress there were only 1,000 Moroccan Jews remaining.",
"title": "Demographics"
},
{
"paragraph_id": 57,
"text": "Today, the Jewish cemetery of Casablanca is one of the major cemeteries of the city, and many synagogues remain in service, but the city's Jewish community has dwindled. The Moroccan Jewish Museum is a museum established in the city in 1997.",
"title": "Demographics"
},
{
"paragraph_id": 58,
"text": "Public: University of Hassan II Casablanca",
"title": "Education"
},
{
"paragraph_id": 59,
"text": "Private:",
"title": "Education"
},
{
"paragraph_id": 60,
"text": "International schools:",
"title": "Education"
},
{
"paragraph_id": 61,
"text": "Most of the city's places of worship are Muslim mosques. Some of the city's synagogues, such as Ettedgui Synagogue, also remain. There are also Christian churches; some remain in use — particularly by the West African migrant community — while many of the churches built during the colonial period have been repurposed, such as Church of the Sacred Heart.",
"title": "Places of worship"
},
{
"paragraph_id": 62,
"text": "Casablanca is home to two popular football clubs: Wydad Casablanca and Raja Casablanca—which are rivals. Raja's symbol is an eagle and Wydad's symbol is a star and crescent, a symbol of Islam. These two popular clubs have produced some of Morocco's best players, such as: Salaheddine Bassir, Abdelmajid Dolmy, Baddou Zaki, Aziz Bouderbala, and Noureddine Naybet. Other football teams on top of these two major teams based in the city of Casablanca include Rachad Bernoussi, TAS de Casablanca, Majd Al Madina, and Racing Casablanca.",
"title": "Sports"
},
{
"paragraph_id": 63,
"text": "Raja CA, founded in 1949, compete in Botola and play their home games at the Stade Mohammed V. The club is known for their supporters and is one of the most supported teams in Africa. Wydad AC, founded in 1937, also compete in Botola and play their home games at the Stade Mohammed V. Both have a strong reputation on continental competitions, having both won the CAF Champions League three times.",
"title": "Sports"
},
{
"paragraph_id": 64,
"text": "Casablanca hosted eight African Champions League finals, all eight at the Stade Mohammed V. The Stade also hosted the 2018 CHAN Final (which Morocco won) and 1988 African Cup of Nations final. It could potentially host matches for the 2030 FIFA World Cup including the final.",
"title": "Sports"
},
{
"paragraph_id": 65,
"text": "Casablanca hosts The Grand Prix Hassan II, a professional men's tennis tournament of the ATP tour. It first began in 1986, and is played on clay courts type at Complexe Al Amal.",
"title": "Sports"
},
{
"paragraph_id": 66,
"text": "Notable winners of the Hassan II Grand-Prix are Thomas Muster in 1990, Hicham Arazi in 1997, Younes El Aynaoui in 2002, and Stanislas Wawrinka in 2010.",
"title": "Sports"
},
{
"paragraph_id": 67,
"text": "Casablanca staged the 1961 Pan Arab Games, the 1983 Mediterranean Games, and games during the 1988 Africa Cup of Nations. Morocco was scheduled to host the 2015 African Nations Cup, but decided to decline due to Ebola fears. Morocco was expelled and the tournament was held in Equatorial Guinea. However, Morocco will host the 2025 edition after original host Guinea was stripped from hosting rights due to lack of readiness and preparation delays.",
"title": "Sports"
},
{
"paragraph_id": 68,
"text": "The Grand Stade de Casablanca is the proposed title of the planned football stadium to be built in the city. Once completed in 2025, it will be used mostly for football matches and will serve as the home of Raja Casablanca, Wydad Casablanca, and the Morocco national football team. The stadium was designed with a capacity of 93,000 spectators, making it one of the highest-capacity stadiums in Africa. Once completed, it will replace the Stade Mohamed V. The initial idea of the stadium was for the 2010 FIFA World Cup, for which Morocco lost their bid to South Africa. Nevertheless, the Moroccan government supported the decision to go ahead with the plans. It will be completed in 2025. The idea of the stadium was also for the 2026 FIFA World Cup, for which Morocco lost their bid to Canada, Mexico and United States. It will now host the 2030 FIFA World Cup which Morocco will co-host with two European nations Spain and Portugal. It is expected to be complete by 2028.",
"title": "Sports"
},
{
"paragraph_id": 69,
"text": "The city is host to the International Casablanca Marathon, a 26.2-mile road race that draws international competition. The race was founded in 2008 and is a member of the Association of International Marathons and Distance Races Archived 17 February 2022 at the Wayback Machine.",
"title": "Sports"
},
{
"paragraph_id": 70,
"text": "Haja El Hamdaouia, one of the most iconic figures in aita music, was born in Casablanca. Nass El Ghiwane, led by Larbi Batma, came out of Hay Mohammadi in Casablanca. Naima Samih of Derb Sultan gained prominence through the program Mawahib (مواهب). Abdelhadi Belkhayat and Abdelwahab Doukkali are musicians specializing in traditional Moroccan Arabic popular music. Zina Daoudia, Abdelaziz Stati, Abdellah Daoudi, and Said Senhaji are notable Moroccan chaabi musicians.",
"title": "Culture"
},
{
"paragraph_id": 71,
"text": "Abdelakabir Faradjallah founded Attarazat Addahabia, a Moroccan funk band, in 1968. Fadoul, another funk band, formed in the 1970s.",
"title": "Culture"
},
{
"paragraph_id": 72,
"text": "Hoba Hoba Spirit also formed in Casablanca, and is still based there. Casablanca has a thriving hiphop scene, with artists such as El Grande Toto, Don Big, 7liwa, and Issam Harris.",
"title": "Culture"
},
{
"paragraph_id": 73,
"text": "Casablanca hosts numerous music festivals, such as Jazzablanca and L'Boulevard, as well as a museum dedicated to Andalusi music, Dar ul-Aala.",
"title": "Culture"
},
{
"paragraph_id": 74,
"text": "Francesco Cavalli's L'Ormindo is a 17th century Venetian opera set between Anfa and Fes.",
"title": "Culture"
},
{
"paragraph_id": 75,
"text": "The French writer Antoine de Saint-Exupéry is associated with Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 76,
"text": "Driss Chraïbi's novel The Simple Past takes place in Casablanca. Mohamed Zafzaf lived in Maarif while writing and teaching at a high school.",
"title": "Culture"
},
{
"paragraph_id": 77,
"text": "Lamalif, a radical leftist political and cultural magazine, was based in Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 78,
"text": "Casablanca's International Book Fair is held at the fair grounds opposite Hassan II Mosque annually in February.",
"title": "Culture"
},
{
"paragraph_id": 79,
"text": "Tayeb Saddiki, described as the father of Moroccan theater, grew up in Casablanca and made his career there. Hanane el-Fadili and Hassan El Fad are popular comedians from Casablanca. Gad Elmaleh is another comedian from Casablanca, though he has made his career abroad.",
"title": "Culture"
},
{
"paragraph_id": 80,
"text": "The École des Beaux-Arts of Casablanca was founded in 1919 by a French Orientalist painter named Édouard Brindeau de Jarny, who started his career teaching drawing at Lycée Lyautey. The Casablanca School—a Modernist art movement and collective including artists such as Farid Belkahia, Mohamed Melehi, and Mohammed Chabâa—developed out of the École des Beaux-Arts of Casablanca in the late 1960s.",
"title": "Culture"
},
{
"paragraph_id": 81,
"text": "The Academy of Traditional Arts, part of the Hassan II Mosque complex, was founded 31 October 2012.",
"title": "Culture"
},
{
"paragraph_id": 82,
"text": "L'Uzine is a community-based art and culture space in Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 83,
"text": "Rebel Spirit published The Casablanca Guide (الدليل البيضاوي, Le Guide Casablancais) a comic book about life in Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 84,
"text": "Sbagha Bagha is a street art festival during which murals are created on the sides of apartment buildings.",
"title": "Culture"
},
{
"paragraph_id": 85,
"text": "Postcard companies such as Léon & Lévy were active in Casablanca. Gabriel Veyre also worked and eventually died in Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 86,
"text": "Marcelin Flandrin (1889-1957), a French military photographer, settled in Casablanca and recorded much of the early colonial period in Morocco with his photography. With his staged nude postcard photos taken in Casablanca's colonial brothel quarter, Flandrin was also responsible for disseminating the orientalist image of Moroccan women as sexual objects.",
"title": "Culture"
},
{
"paragraph_id": 87,
"text": "Casablanca has a thriving street photography scene. Yoriyas is prominent among photographers capturing the economic capital's street scenes, and has attracted international attention.",
"title": "Culture"
},
{
"paragraph_id": 88,
"text": "In the first half of the 20th century, Casablanca had many movie theaters, such as Cinema Rialto, Cinema Lynx and Cinema Vox, the largest in Africa when it was built.",
"title": "Culture"
},
{
"paragraph_id": 89,
"text": "The 1942 American film Casablanca is set in Casablanca and has had a lasting impact on the city's image although it was filmed in the United States. Salut Casa! was a propaganda film brandishing France's purported colonial triumph in its mission civilisatrice in the city.",
"title": "Culture"
},
{
"paragraph_id": 90,
"text": "Mostafa Derkaoui's revolutionary independent film About Some Meaningless Events (1974) took place in Casablanca. It was the main subject of Ali Essafi's documentary Before the Dying of the Light.",
"title": "Culture"
},
{
"paragraph_id": 91,
"text": "Love in Casablanca (1991), starring Abdelkarim Derqaoui and Muna Fettou, is one of the first Moroccan films to deal with Morocco's complex realities and to depict life in Casablanca with verisimilitude. Nour-Eddine Lakhmari's Casanegra (2008) depicts the harsh realities of Casablanca's working classes. The films Ali Zaoua (2000), Horses of God (2012), and Razzia (2017) of Nabil Ayouch, a French director of Moroccan heritage, deal with street crime, terrorism and social issues in Casablanca, respectively. The events in Meryem Benm'Barek-Aloïsi's 2018 film Sofia revolve around an illegitimate pregnancy in Casablanca. Ahmed El Maanouni, Hicham Lasri and Said Naciri are also from Casablanca.",
"title": "Culture"
},
{
"paragraph_id": 92,
"text": "Casablanca's architecture and urban development are historically significant. The city is home to many notable buildings in a variety of styles, including traditional Moroccan architecture, various colonial architectural styles, Art Nouveau, Art Deco, Neo-Mauresque, Streamline Moderne, Modernism, Brutalism, and more. During the French Protectorate, the French government described Casablanca as a \"laboratory of urbanism.\"",
"title": "Culture"
},
{
"paragraph_id": 93,
"text": "The work of the Groupe des Architectes Modernes Marocains (GAMMA) on public housing projects—such as Carrières Centrales in Hay Mohammadi—in a style described as vernacular modernism influenced modernist architecture around the world.",
"title": "Culture"
},
{
"paragraph_id": 94,
"text": "Casamémoire and MAMMA. are two organizations dedicated to the preservation and appreciation of the city's architectural heritage.",
"title": "Culture"
},
{
"paragraph_id": 95,
"text": "The Casablanca Tramway is the rapid transit tram system in Casablanca. As of 2019, the network consists of two lines covering 47.5 km (30 mi), with 71 stops; further lines (T3 and T4) are under construction.",
"title": "Transport"
},
{
"paragraph_id": 96,
"text": "Casablanca is also planning to introduce a rapid bus network called the Casablanca Busway. The network will consist of two lines, BW1 and BW2. As of October 2023, the system was operating in a testing phase and its public opening, initially planned for July 2023, was delayed due to technical problems.",
"title": "Transport"
},
{
"paragraph_id": 97,
"text": "Since the 1970s, Casablanca had planned to build a metro system to offer some relief to the problems of traffic congestion and poor air quality. However, the city council voted to abandon the metro project in 2014 due to high costs, and decided to continue expanding the already operating tram system instead.",
"title": "Transport"
},
{
"paragraph_id": 98,
"text": "Casablanca's main airport is Mohammed V International Airport, Morocco's busiest airport. Regular domestic flights serve Marrakech, Rabat, Agadir, Oujda, Tangier, Al Hoceima, and Laayoune, as well as other cities.",
"title": "Transport"
},
{
"paragraph_id": 99,
"text": "Casablanca is well-served by international flights to Europe, especially French and Spanish airports, and has regular connections to North American, Middle Eastern and sub-Saharan African destinations. New York City, Montreal, Paris, Washington D.C., London and Dubai are important primary destinations.",
"title": "Transport"
},
{
"paragraph_id": 100,
"text": "The older, smaller Casablanca-Anfa Airport to the west of the city, served certain destinations including Damascus and Tunis, and was largely closed to international civilian traffic in 2006. It was eventually demolished to make way for construction of the \"Casablanca Finance City\", the new heart of the city of Casablanca. Casablanca Tit Mellil Airport is located in the nearby community of Tit Mellil.",
"title": "Transport"
},
{
"paragraph_id": 101,
"text": "Compagnie de Transports au Maroc (CTM) offers private intercity coach buses on various lines run servicing most notable Moroccan towns, as well as a number of European cities. These run from the CTM Bus Station on Leo Africanus Street near the Central Market in downtown Casablanca. Supratours, an affiliate of ONCF, also offers coach bus service at a slightly lower cost, departing from a station on Wilad Zian Street. There is another bus station farther down on the same street called the Wilad Zian Bus Station; this station is the country's largest bus station, serving over 800 buses daily, catering more to Morocco's lower income population.",
"title": "Transport"
},
{
"paragraph_id": 102,
"text": "Registered taxis in Casablanca are coloured red and known as petits taxis (small taxis), or coloured white and known as grands taxis (big taxis). As is standard Moroccan practice, petits taxis, typically small-four door Dacia Logan, Peugeot 207, or similar cars, provide metered cab service in the central metropolitan areas. Grands taxis, generally older Mercedes-Benz sedans, provide shared mini-bus like service within the city on predefined routes, or shared intercity service. Grands taxis may also be hired for private service by the hour or day.",
"title": "Transport"
},
{
"paragraph_id": 103,
"text": "Casablanca is served by three main railway stations run by the national rail service, the ONCF.",
"title": "Transport"
},
{
"paragraph_id": 104,
"text": "Casa-Voyageurs is the main intercity station, from which trains run south to Marrakech or El Jadida and north to Mohammedia and Rabat, and then on either to Tangier or Meknes, Fes, Taza and Oujda/Nador. It also serves as the southern terminus of the Al-Boraq high speed line from Tangier. A dedicated airport shuttle service to Mohammed V International Airport also has its primary in-city stop at this station, for connections on to further destinations.",
"title": "Transport"
},
{
"paragraph_id": 105,
"text": "Casa-Port serves primarily commuter trains such as the Train Navette Rapide (TNR or Aouita) operating on the Casablanca – Kenitra rail corridor, with some connecting trains running on to Gare de Casa-Voyageurs. The station provides a direct interchange between train and shipping services, and is located near several port-area hotels. It is the nearest station to the old town of Casablanca, and to the modern city centre, around the landmark Casablanca Twin Center. Casa-Port station is being rebuilt in a modern and enlarged configuration. During the construction, the station is still operational. From 2013, it will provide a close connection from the rail network to the city's new tram network.",
"title": "Transport"
},
{
"paragraph_id": 106,
"text": "Casa-Oasis was originally a suburban commuter station which was fully redesigned and rebuilt in the early 21st century, and officially reopened in 2005 as a primary city rail station. Owing to its new status, all southern intercity train services to and from Casa-Voyageurs now call at Casa-Oasis. ONCF stated in 2005 that the refurbishment and upgrading of Casa-Oasis to intercity standards was intended to relieve passenger congestion at Casa-Voyageurs station.",
"title": "Transport"
},
{
"paragraph_id": 107,
"text": "Although Mohammed V International Airport receives most international flights into Morocco, international tourism in Casablanca is not as developed as it is in cities such as Fes and Marrakech.",
"title": "Tourism"
},
{
"paragraph_id": 108,
"text": "The Hassan II Mosque, which is the second largest mosque in Africa and the seventh largest in the world, is the city's main tourist attraction. Visitors also come to see the city's rich architectural heritage.",
"title": "Tourism"
},
{
"paragraph_id": 109,
"text": "Popular sites for national tourism include shopping centers such as Morocco Mall, Anfa Place, the Marina Shopping Center, and the Tachfine Center. Additional sites include the Corniche and the beach of Ain Diab, and parks such as the Arab League Park or the Sindibad theme park.",
"title": "Tourism"
},
{
"paragraph_id": 110,
"text": "Casablanca is twinned with:",
"title": "Twin towns – sister cities"
},
{
"paragraph_id": 111,
"text": "Casablanca also has cooperation agreements with:",
"title": "Twin towns – sister cities"
},
{
"paragraph_id": 112,
"text": "33°32′N 7°35′W / 33.533°N 7.583°W / 33.533; -7.583",
"title": "External links"
}
] | Casablanca, also known by its Arabic name Dar el-Beida, is the largest city in Morocco and the country's economic and business center. Located on the Atlantic coast of the Chaouia plain in the central-western part of Morocco, the city has a population of about 3.71 million in the urban area, and over 4.27 million in the Greater Casablanca, making it the most populous city in the Maghreb region, and the eighth-largest in the Arab world. Casablanca is Morocco's chief port, with the Port of Casablanca being one of the largest artificial ports in the world, and the second largest port in North Africa, after Tanger-Med. Casablanca also hosts the primary naval base for the Royal Moroccan Navy. Casablanca is considered a Global Financial Centre, ranking 54th globally in the Global Financial Centres Index rankings for the year 2022, outperforming cities such as New Delhi, Jakarta, Istanbul, and Mexico City. Casablanca is ranked among the Emerging International contenders, and it is considered the largest financial center in Africa. The leading Moroccan companies and many of the larger American and European corporations doing business in the country have their headquarters and main industrial facilities in Casablanca. Recent industrial statistics show Casablanca is the primary industrial zone of the nation. | 2001-12-02T19:44:07Z | 2023-12-31T13:16:40Z | [
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] | https://en.wikipedia.org/wiki/Casablanca |
7,303 | Cross | A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other. The lines usually run vertically and horizontally. A cross of oblique lines, in the shape of the Latin letter X, is termed a saltire in heraldic terminology.
The cross has been widely recognized as a symbol of Christianity from an early period. Before then, it was a pagan religious symbol throughout Europe and western Asia. The effigy of a man hanging on a cross was set up in the fields to protect the crops. It often appeared in conjunction with the female-genital circle or oval, to signify the sacred marriage, as in Egyptian amulet Nefer with male cross and female orb, considered as an amulet of blessedness, a charm of sexual harmony.
The word cross is recorded in 11th-century Old English as cros, exclusively for the instrument of Christ's crucifixion, replacing the native Old English word rood. The word's history is complicated; it appears to have entered English from Old Irish, possibly via Old Norse, ultimately from the Latin crux (or its accusative crucem and its genitive crucis), "stake, cross". The English verb to cross arises from the noun c. 1200, first in the sense "to make the sign of the cross"; the generic meaning "to intersect" develops in the 15th century. The Latin word was influenced by popular etymology by a native Germanic word reconstructed as *krukjo (English crook, Old English crycce, Old Norse krokr, Old High German krucka). This word, by conflation with Latin crux, gave rise to Old French crocier (modern French crosse), the term for a shepherd's crook, adopted in English as crosier.
Latin crux referred to the gibbet where criminals were executed, a stake or pole, with or without transom, on which the condemned were impaled or hanged, but more particularly a cross or the pole of a carriage. The derived verb cruciāre means "to put to death on the cross" or, more frequently, "to put to the rack, to torture, torment", especially in reference to mental troubles. In the Roman world, furca replaced crux as the name of some cross-like instruments for lethal and temporary punishment, ranging from a forked cross to a gibbet or gallows.
The field of etymology is of no help in any effort to trace a supposed original meaning of crux. A crux can be of various shapes: from a single beam used for impaling or suspending (crux simplex) to the various composite kinds of cross (crux compacta) made from more beams than one. The latter shapes include not only the traditional †-shaped cross (the crux immissa), but also the T-shaped cross (the crux commissa or tau cross), which the descriptions in antiquity of the execution cross indicate as the normal form in use at that time, and the X-shaped cross (the crux decussata or saltire).
The Greek equivalent of Latin crux "stake, gibbet" is stauros, found in texts of four centuries or more before the gospels and always in the plural number to indicate a stake or pole. From the first century BC, it is used to indicate an instrument used in executions. The Greek word is used in descriptions in antiquity of the execution cross, which indicate that its normal shape was similar to the Greek letter tau (Τ).
Due to the simplicity of the design (two intersecting lines), cross-shaped incisions make their appearance from deep prehistory; as petroglyphs in European cult caves, dating back to the beginning of the Upper Paleolithic, and throughout prehistory to the Iron Age. Also of prehistoric age are numerous variants of the simple cross mark, including the crux gammata with curving or angular lines, and the Egyptian crux ansata with a loop.
Speculation has associated the cross symbol – even in the prehistoric period – with astronomical or cosmological symbology involving "four elements" (Chevalier, 1997) or the cardinal points, or the unity of a vertical axis mundi or celestial pole with the horizontal world (Koch, 1955). Speculation of this kind became especially popular in the mid- to late-19th century in the context of comparative mythology seeking to tie Christian mythology to ancient cosmological myths. Influential works in this vein included G. de Mortillet (1866), L. Müller (1865), W. W. Blake (1888), Ansault (1891), etc.
In the European Bronze Age the cross symbol appeared to carry a religious meaning, perhaps as a symbol of consecration, especially pertaining to burial.
The cross sign occurs trivially in tally marks, and develops into a number symbol independently in the Roman numerals (X "ten"), the Chinese rod numerals (十 "ten") and the Brahmi numerals ("four", whence the numeral 4).
In the Phoenician alphabet and derived scripts, the cross symbol represented the phoneme /t/, i.e. the letter taw, which is the historical predecessor of Latin T. The letter name taw means "mark", presumably continuing the Egyptian hieroglyph "two crossed sticks" (Gardiner Z9).
The shape of the cross (crux, stauros "stake, gibbet"), as represented by the letter T, came to be used as a "seal" or symbol of Early Christianity by the 2nd century. Clement of Alexandria in the early 3rd century calls it τὸ κυριακὸν σημεῖον ("the Lord's sign") he repeats the idea, current as early as the Epistle of Barnabas, that the number 318 (in Greek numerals, ΤΙΗ) in Genesis 14:14 was a foreshadowing (a "type") of the cross (the letter Tau) and of Jesus (the letters Iota Eta). Clement's contemporary Tertullian rejects the accusation that Christians are crucis religiosi (i.e. "adorers of the gibbet"), and returns the accusation by likening the worship of pagan idols to the worship of poles or stakes. In his book De Corona, written in 204, Tertullian tells how it was already a tradition for Christians to trace repeatedly on their foreheads the sign of the cross.
While early Christians used the T-shape to represent the cross in writing and gesture, the use of the Greek cross and Latin cross, i.e. crosses with intersecting beams, appears in Christian art towards the end of Late Antiquity. An early example of the cruciform halo, used to identify Christ in paintings, is found in the Miracles of the Loaves and Fishes mosaic of Sant'Apollinare Nuovo, Ravenna (6th century). The Patriarchal cross, a Latin cross with an additional horizontal bar, first appears in the 10th century. A wide variation of cross symbols is introduced for the purposes of heraldry beginning in the age of the Crusades.
The cross mark is used to mark a position, or as a check mark, but also to mark deletion. Derived from Greek Chi are the Latin letter X, Cyrillic Kha and possibly runic Gyfu.
Egyptian hieroglyphs involving cross shapes include ankh "life", ndj "protect" and nfr "good; pleasant, beautiful".
Sumerian cuneiform had a simple cross-shaped character, consisting of a horizontal and a vertical wedge (𒈦), read as maš "tax, yield, interest"; the superposition of two diagonal wedges results in a decussate cross (𒉽), read as pap "first, pre-eminent" (the superposition of these two types of crosses results in the eight-pointed star used as the sign for "sky" or "deity" (𒀭), DINGIR). The cuneiform script has other, more complex, cruciform characters, consisting of an arrangement of boxes or the fourfold arrangement of other characters, including the archaic cuneiform characters LAK-210, LAK-276, LAK-278, LAK-617 and the classical sign EZEN (𒂡).
Phoenician tāw is still cross-shaped in Paleo-Hebrew alphabet and in some Old Italic scripts (Raetic and Lepontic), and its descendant T becomes again cross-shaped in the Latin minuscule t. The plus sign (+) is derived from Latin t via a simplification of a ligature for et "and" (introduced by Johannes Widmann in the late 15th century).
The letter Aleph is cross-shaped in Aramaic and paleo-Hebrew.
Egyptian hieroglyphs with cross-shapes include Gardiner Z9 – Z11 ("crossed sticks", "crossed planks").
Other, unrelated cross-shaped letters include Brahmi ka (predecessor of the Devanagari letter क) and Old Turkic (Orkhon) d² and Old Hungarian b, and Katakana ナ na and メme.
The multiplication sign (×), often attributed to William Oughtred (who first used it in an appendix to the 1618 edition of John Napier's Descriptio) apparently had been in occasional use since the mid 16th century.
Other typographical symbols resembling crosses include the dagger or obelus (†), the Chinese (十, Kangxi radical 24) and Roman (X ten).
Unicode has a variety of cross symbols in the "Dingbat" block (U+2700–U+27BF):
The Miscellaneous Symbols block (U+2626 to U+262F) adds three specific Christian cross variants, viz. the Patriarchal cross (☦), Cross of Lorraine (☨) and Cross potent (☩, mistakenly labeled a "Cross of Jerusalem").
The following is a list of cross symbols, except for variants of the Christian cross and Heraldic crosses, for which see the dedicated lists at Christian cross variants and Crosses in heraldry, respectively.
Cross shapes are made by a variety of physical gestures. Crossing the fingers of one hand is a common invocation of the symbol. The sign of the cross associated with Christian genuflection is made with one hand: in Eastern Orthodox tradition the sequence is head-heart-right shoulder-left shoulder, while in Oriental Orthodox, Catholic and Anglican tradition the sequence is head-heart-left-right.
Crossing the index fingers of both hands represents and a charm against evil in European folklore. Other gestures involving more than one hand include the "cross my heart" movement associated with making a promise and the Tau shape of the referee's "time out" hand signal.
In Chinese-speaking cultures, crossed index fingers represent the number 10.
Unicode provides various cross symbol: | [
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{
"paragraph_id": 1,
"text": "The cross has been widely recognized as a symbol of Christianity from an early period. Before then, it was a pagan religious symbol throughout Europe and western Asia. The effigy of a man hanging on a cross was set up in the fields to protect the crops. It often appeared in conjunction with the female-genital circle or oval, to signify the sacred marriage, as in Egyptian amulet Nefer with male cross and female orb, considered as an amulet of blessedness, a charm of sexual harmony.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The word cross is recorded in 11th-century Old English as cros, exclusively for the instrument of Christ's crucifixion, replacing the native Old English word rood. The word's history is complicated; it appears to have entered English from Old Irish, possibly via Old Norse, ultimately from the Latin crux (or its accusative crucem and its genitive crucis), \"stake, cross\". The English verb to cross arises from the noun c. 1200, first in the sense \"to make the sign of the cross\"; the generic meaning \"to intersect\" develops in the 15th century. The Latin word was influenced by popular etymology by a native Germanic word reconstructed as *krukjo (English crook, Old English crycce, Old Norse krokr, Old High German krucka). This word, by conflation with Latin crux, gave rise to Old French crocier (modern French crosse), the term for a shepherd's crook, adopted in English as crosier.",
"title": "Name"
},
{
"paragraph_id": 3,
"text": "Latin crux referred to the gibbet where criminals were executed, a stake or pole, with or without transom, on which the condemned were impaled or hanged, but more particularly a cross or the pole of a carriage. The derived verb cruciāre means \"to put to death on the cross\" or, more frequently, \"to put to the rack, to torture, torment\", especially in reference to mental troubles. In the Roman world, furca replaced crux as the name of some cross-like instruments for lethal and temporary punishment, ranging from a forked cross to a gibbet or gallows.",
"title": "Name"
},
{
"paragraph_id": 4,
"text": "The field of etymology is of no help in any effort to trace a supposed original meaning of crux. A crux can be of various shapes: from a single beam used for impaling or suspending (crux simplex) to the various composite kinds of cross (crux compacta) made from more beams than one. The latter shapes include not only the traditional †-shaped cross (the crux immissa), but also the T-shaped cross (the crux commissa or tau cross), which the descriptions in antiquity of the execution cross indicate as the normal form in use at that time, and the X-shaped cross (the crux decussata or saltire).",
"title": "Name"
},
{
"paragraph_id": 5,
"text": "The Greek equivalent of Latin crux \"stake, gibbet\" is stauros, found in texts of four centuries or more before the gospels and always in the plural number to indicate a stake or pole. From the first century BC, it is used to indicate an instrument used in executions. The Greek word is used in descriptions in antiquity of the execution cross, which indicate that its normal shape was similar to the Greek letter tau (Τ).",
"title": "Name"
},
{
"paragraph_id": 6,
"text": "Due to the simplicity of the design (two intersecting lines), cross-shaped incisions make their appearance from deep prehistory; as petroglyphs in European cult caves, dating back to the beginning of the Upper Paleolithic, and throughout prehistory to the Iron Age. Also of prehistoric age are numerous variants of the simple cross mark, including the crux gammata with curving or angular lines, and the Egyptian crux ansata with a loop.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "Speculation has associated the cross symbol – even in the prehistoric period – with astronomical or cosmological symbology involving \"four elements\" (Chevalier, 1997) or the cardinal points, or the unity of a vertical axis mundi or celestial pole with the horizontal world (Koch, 1955). Speculation of this kind became especially popular in the mid- to late-19th century in the context of comparative mythology seeking to tie Christian mythology to ancient cosmological myths. Influential works in this vein included G. de Mortillet (1866), L. Müller (1865), W. W. Blake (1888), Ansault (1891), etc.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "In the European Bronze Age the cross symbol appeared to carry a religious meaning, perhaps as a symbol of consecration, especially pertaining to burial.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "The cross sign occurs trivially in tally marks, and develops into a number symbol independently in the Roman numerals (X \"ten\"), the Chinese rod numerals (十 \"ten\") and the Brahmi numerals (\"four\", whence the numeral 4).",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In the Phoenician alphabet and derived scripts, the cross symbol represented the phoneme /t/, i.e. the letter taw, which is the historical predecessor of Latin T. The letter name taw means \"mark\", presumably continuing the Egyptian hieroglyph \"two crossed sticks\" (Gardiner Z9).",
"title": "History"
},
{
"paragraph_id": 11,
"text": "The shape of the cross (crux, stauros \"stake, gibbet\"), as represented by the letter T, came to be used as a \"seal\" or symbol of Early Christianity by the 2nd century. Clement of Alexandria in the early 3rd century calls it τὸ κυριακὸν σημεῖον (\"the Lord's sign\") he repeats the idea, current as early as the Epistle of Barnabas, that the number 318 (in Greek numerals, ΤΙΗ) in Genesis 14:14 was a foreshadowing (a \"type\") of the cross (the letter Tau) and of Jesus (the letters Iota Eta). Clement's contemporary Tertullian rejects the accusation that Christians are crucis religiosi (i.e. \"adorers of the gibbet\"), and returns the accusation by likening the worship of pagan idols to the worship of poles or stakes. In his book De Corona, written in 204, Tertullian tells how it was already a tradition for Christians to trace repeatedly on their foreheads the sign of the cross.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "While early Christians used the T-shape to represent the cross in writing and gesture, the use of the Greek cross and Latin cross, i.e. crosses with intersecting beams, appears in Christian art towards the end of Late Antiquity. An early example of the cruciform halo, used to identify Christ in paintings, is found in the Miracles of the Loaves and Fishes mosaic of Sant'Apollinare Nuovo, Ravenna (6th century). The Patriarchal cross, a Latin cross with an additional horizontal bar, first appears in the 10th century. A wide variation of cross symbols is introduced for the purposes of heraldry beginning in the age of the Crusades.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "The cross mark is used to mark a position, or as a check mark, but also to mark deletion. Derived from Greek Chi are the Latin letter X, Cyrillic Kha and possibly runic Gyfu.",
"title": "Marks and graphemes"
},
{
"paragraph_id": 14,
"text": "Egyptian hieroglyphs involving cross shapes include ankh \"life\", ndj \"protect\" and nfr \"good; pleasant, beautiful\".",
"title": "Marks and graphemes"
},
{
"paragraph_id": 15,
"text": "Sumerian cuneiform had a simple cross-shaped character, consisting of a horizontal and a vertical wedge (𒈦), read as maš \"tax, yield, interest\"; the superposition of two diagonal wedges results in a decussate cross (𒉽), read as pap \"first, pre-eminent\" (the superposition of these two types of crosses results in the eight-pointed star used as the sign for \"sky\" or \"deity\" (𒀭), DINGIR). The cuneiform script has other, more complex, cruciform characters, consisting of an arrangement of boxes or the fourfold arrangement of other characters, including the archaic cuneiform characters LAK-210, LAK-276, LAK-278, LAK-617 and the classical sign EZEN (𒂡).",
"title": "Marks and graphemes"
},
{
"paragraph_id": 16,
"text": "Phoenician tāw is still cross-shaped in Paleo-Hebrew alphabet and in some Old Italic scripts (Raetic and Lepontic), and its descendant T becomes again cross-shaped in the Latin minuscule t. The plus sign (+) is derived from Latin t via a simplification of a ligature for et \"and\" (introduced by Johannes Widmann in the late 15th century).",
"title": "Marks and graphemes"
},
{
"paragraph_id": 17,
"text": "The letter Aleph is cross-shaped in Aramaic and paleo-Hebrew.",
"title": "Marks and graphemes"
},
{
"paragraph_id": 18,
"text": "Egyptian hieroglyphs with cross-shapes include Gardiner Z9 – Z11 (\"crossed sticks\", \"crossed planks\").",
"title": "Marks and graphemes"
},
{
"paragraph_id": 19,
"text": "Other, unrelated cross-shaped letters include Brahmi ka (predecessor of the Devanagari letter क) and Old Turkic (Orkhon) d² and Old Hungarian b, and Katakana ナ na and メme.",
"title": "Marks and graphemes"
},
{
"paragraph_id": 20,
"text": "The multiplication sign (×), often attributed to William Oughtred (who first used it in an appendix to the 1618 edition of John Napier's Descriptio) apparently had been in occasional use since the mid 16th century.",
"title": "Marks and graphemes"
},
{
"paragraph_id": 21,
"text": "Other typographical symbols resembling crosses include the dagger or obelus (†), the Chinese (十, Kangxi radical 24) and Roman (X ten).",
"title": "Marks and graphemes"
},
{
"paragraph_id": 22,
"text": "Unicode has a variety of cross symbols in the \"Dingbat\" block (U+2700–U+27BF):",
"title": "Marks and graphemes"
},
{
"paragraph_id": 23,
"text": "The Miscellaneous Symbols block (U+2626 to U+262F) adds three specific Christian cross variants, viz. the Patriarchal cross (☦), Cross of Lorraine (☨) and Cross potent (☩, mistakenly labeled a \"Cross of Jerusalem\").",
"title": "Marks and graphemes"
},
{
"paragraph_id": 24,
"text": "The following is a list of cross symbols, except for variants of the Christian cross and Heraldic crosses, for which see the dedicated lists at Christian cross variants and Crosses in heraldry, respectively.",
"title": "Emblems"
},
{
"paragraph_id": 25,
"text": "Cross shapes are made by a variety of physical gestures. Crossing the fingers of one hand is a common invocation of the symbol. The sign of the cross associated with Christian genuflection is made with one hand: in Eastern Orthodox tradition the sequence is head-heart-right shoulder-left shoulder, while in Oriental Orthodox, Catholic and Anglican tradition the sequence is head-heart-left-right.",
"title": "Physical gestures"
},
{
"paragraph_id": 26,
"text": "Crossing the index fingers of both hands represents and a charm against evil in European folklore. Other gestures involving more than one hand include the \"cross my heart\" movement associated with making a promise and the Tau shape of the referee's \"time out\" hand signal.",
"title": "Physical gestures"
},
{
"paragraph_id": 27,
"text": "In Chinese-speaking cultures, crossed index fingers represent the number 10.",
"title": "Physical gestures"
},
{
"paragraph_id": 28,
"text": "Unicode provides various cross symbol:",
"title": "Unicode"
}
] | A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other. The lines usually run vertically and horizontally. A cross of oblique lines, in the shape of the Latin letter X, is termed a saltire in heraldic terminology. The cross has been widely recognized as a symbol of Christianity from an early period. Before then, it was a pagan religious symbol throughout Europe and western Asia. The effigy of a man hanging on a cross was set up in the fields to protect the crops. It often appeared in conjunction with the female-genital circle or oval, to signify the sacred marriage, as in Egyptian amulet Nefer with male cross and female orb, considered as an amulet of blessedness, a charm of sexual harmony. | 2001-12-02T22:33:31Z | 2023-10-21T18:42:41Z | [
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7,304 | Coordination complex | A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the periodic table's d-block), are coordination complexes.
Coordination complexes are so pervasive that their structures and reactions are described in many ways, sometimes confusingly. The atom within a ligand that is bonded to the central metal atom or ion is called the donor atom. In a typical complex, a metal ion is bonded to several donor atoms, which can be the same or different. A polydentate (multiple bonded) ligand is a molecule or ion that bonds to the central atom through several of the ligand's atoms; ligands with 2, 3, 4 or even 6 bonds to the central atom are common. These complexes are called chelate complexes; the formation of such complexes is called chelation, complexation, and coordination.
The central atom or ion, together with all ligands, comprise the coordination sphere. The central atoms or ion and the donor atoms comprise the first coordination sphere.
Coordination refers to the "coordinate covalent bonds" (dipolar bonds) between the ligands and the central atom. Originally, a complex implied a reversible association of molecules, atoms, or ions through such weak chemical bonds. As applied to coordination chemistry, this meaning has evolved. Some metal complexes are formed virtually irreversibly and many are bound together by bonds that are quite strong.
The number of donor atoms attached to the central atom or ion is called the coordination number. The most common coordination numbers are 2, 4, and especially 6. A hydrated ion is one kind of a complex ion (or simply a complex), a species formed between a central metal ion and one or more surrounding ligands, molecules or ions that contain at least one lone pair of electrons.
If all the ligands are monodentate, then the number of donor atoms equals the number of ligands. For example, the cobalt(II) hexahydrate ion or the hexaaquacobalt(II) ion [Co(H2O)6] is a hydrated-complex ion that consists of six water molecules attached to a metal ion Co. The oxidation state and the coordination number reflect the number of bonds formed between the metal ion and the ligands in the complex ion. However, the coordination number of Pt(en)2 is 4 (rather than 2) since it has two bidentate ligands, which contain four donor atoms in total.
Any donor atom will give a pair of electrons. There are some donor atoms or groups which can offer more than one pair of electrons. Such are called bidentate (offers two pairs of electrons) or polydentate (offers more than two pairs of electrons). In some cases an atom or a group offers a pair of electrons to two similar or different central metal atoms or acceptors—by division of the electron pair—into a three-center two-electron bond. These are called bridging ligands.
Coordination complexes have been known since the beginning of modern chemistry. Early well-known coordination complexes include dyes such as Prussian blue. Their properties were first well understood in the late 1800s, following the 1869 work of Christian Wilhelm Blomstrand. Blomstrand developed what has come to be known as the complex ion chain theory. In considering metal amine complexes, he theorized that the ammonia molecules compensated for the charge of the ion by forming chains of the type [(NH3)X], where X is the coordination number of the metal ion. He compared his theoretical ammonia chains to hydrocarbons of the form (CH2)X.
Following this theory, Danish scientist Sophus Mads Jørgensen made improvements to it. In his version of the theory, Jørgensen claimed that when a molecule dissociates in a solution there were two possible outcomes: the ions would bind via the ammonia chains Blomstrand had described or the ions would bind directly to the metal.
It was not until 1893 that the most widely accepted version of the theory today was published by Alfred Werner. Werner's work included two important changes to the Blomstrand theory. The first was that Werner described the two possibilities in terms of location in the coordination sphere. He claimed that if the ions were to form a chain, this would occur outside of the coordination sphere while the ions that bound directly to the metal would do so within the coordination sphere. In one of his most important discoveries however Werner disproved the majority of the chain theory. Werner discovered the spatial arrangements of the ligands that were involved in the formation of the complex hexacoordinate cobalt. His theory allows one to understand the difference between a coordinated ligand and a charge balancing ion in a compound, for example the chloride ion in the cobaltammine chlorides and to explain many of the previously inexplicable isomers.
In 1911, Werner first resolved the coordination complex hexol into optical isomers, overthrowing the theory that only carbon compounds could possess chirality.
The ions or molecules surrounding the central atom are called ligands. Ligands are classified as L or X (or a combination thereof), depending on how many electrons they provide for the bond between ligand and central atom. L ligands provide two electrons from a lone electron pair, resulting in a coordinate covalent bond. X ligands provide one electron, with the central atom providing the other electron, thus forming a regular covalent bond. The ligands are said to be coordinated to the atom. For alkenes, the pi bonds can coordinate to metal atoms. An example is ethylene in the complex [PtCl3(C2H4)] (Zeise's salt).
In coordination chemistry, a structure is first described by its coordination number, the number of ligands attached to the metal (more specifically, the number of donor atoms). Usually one can count the ligands attached, but sometimes even the counting can become ambiguous. Coordination numbers are normally between two and nine, but large numbers of ligands are not uncommon for the lanthanides and actinides. The number of bonds depends on the size, charge, and electron configuration of the metal ion and the ligands. Metal ions may have more than one coordination number.
Typically the chemistry of transition metal complexes is dominated by interactions between s and p molecular orbitals of the donor-atoms in the ligands and the d orbitals of the metal ions. The s, p, and d orbitals of the metal can accommodate 18 electrons (see 18-Electron rule). The maximum coordination number for a certain metal is thus related to the electronic configuration of the metal ion (to be more specific, the number of empty orbitals) and to the ratio of the size of the ligands and the metal ion. Large metals and small ligands lead to high coordination numbers, e.g. [Mo(CN)8]. Small metals with large ligands lead to low coordination numbers, e.g. Pt[P(CMe3)]2. Due to their large size, lanthanides, actinides, and early transition metals tend to have high coordination numbers.
Most structures follow the points-on-a-sphere pattern (or, as if the central atom were in the middle of a polyhedron where the corners of that shape are the locations of the ligands), where orbital overlap (between ligand and metal orbitals) and ligand-ligand repulsions tend to lead to certain regular geometries. The most observed geometries are listed below, but there are many cases that deviate from a regular geometry, e.g. due to the use of ligands of diverse types (which results in irregular bond lengths; the coordination atoms do not follow a points-on-a-sphere pattern), due to the size of ligands, or due to electronic effects (see, e.g., Jahn–Teller distortion):
The idealized descriptions of 5-, 7-, 8-, and 9- coordination are often indistinct geometrically from alternative structures with slightly differing L-M-L (ligand-metal-ligand) angles, e.g. the difference between square pyramidal and trigonal bipyramidal structures.
To distinguish between the alternative coordinations for five-coordinated complexes, the τ geometry index was invented by Addison et al. This index depends on angles by the coordination center and changes between 0 for the square pyramidal to 1 for trigonal bipyramidal structures, allowing to classify the cases in between. This system was later extended to four-coordinated complexes by Houser et al. and also Okuniewski et al.
In systems with low d electron count, due to special electronic effects such as (second-order) Jahn–Teller stabilization, certain geometries (in which the coordination atoms do not follow a points-on-a-sphere pattern) are stabilized relative to the other possibilities, e.g. for some compounds the trigonal prismatic geometry is stabilized relative to octahedral structures for six-coordination.
The arrangement of the ligands is fixed for a given complex, but in some cases it is mutable by a reaction that forms another stable isomer.
There exist many kinds of isomerism in coordination complexes, just as in many other compounds.
Stereoisomerism occurs with the same bonds in distinct orientations. Stereoisomerism can be further classified into:
Cis–trans isomerism occurs in octahedral and square planar complexes (but not tetrahedral). When two ligands are adjacent they are said to be cis, when opposite each other, trans. When three identical ligands occupy one face of an octahedron, the isomer is said to be facial, or fac. In a fac isomer, any two identical ligands are adjacent or cis to each other. If these three ligands and the metal ion are in one plane, the isomer is said to be meridional, or mer. A mer isomer can be considered as a combination of a trans and a cis, since it contains both trans and cis pairs of identical ligands.
Optical isomerism occurs when a complex is not superimposable with its mirror image. It is so called because the two isomers are each optically active, that is, they rotate the plane of polarized light in opposite directions. In the first molecule shown, the symbol Λ (lambda) is used as a prefix to describe the left-handed propeller twist formed by three bidentate ligands. The second molecule is the mirror image of the first, with the symbol Δ (delta) as a prefix for the right-handed propeller twist. The third and fourth molecules are a similar pair of Λ and Δ isomers, in this case with two bidentate ligands and two identical monodentate ligands.
Structural isomerism occurs when the bonds are themselves different. Four types of structural isomerism are recognized: ionisation isomerism, solvate or hydrate isomerism, linkage isomerism and coordination isomerism.
Many of the properties of transition metal complexes are dictated by their electronic structures. The electronic structure can be described by a relatively ionic model that ascribes formal charges to the metals and ligands. This approach is the essence of crystal field theory (CFT). Crystal field theory, introduced by Hans Bethe in 1929, gives a quantum mechanically based attempt at understanding complexes. But crystal field theory treats all interactions in a complex as ionic and assumes that the ligands can be approximated by negative point charges.
More sophisticated models embrace covalency, and this approach is described by ligand field theory (LFT) and Molecular orbital theory (MO). Ligand field theory, introduced in 1935 and built from molecular orbital theory, can handle a broader range of complexes and can explain complexes in which the interactions are covalent. The chemical applications of group theory can aid in the understanding of crystal or ligand field theory, by allowing simple, symmetry based solutions to the formal equations.
Chemists tend to employ the simplest model required to predict the properties of interest; for this reason, CFT has been a favorite for the discussions when possible. MO and LF theories are more complicated, but provide a more realistic perspective.
The electronic configuration of the complexes gives them some important properties:
Transition metal complexes often have spectacular colors caused by electronic transitions by the absorption of light. For this reason they are often applied as pigments. Most transitions that are related to colored metal complexes are either d–d transitions or charge transfer bands. In a d–d transition, an electron in a d orbital on the metal is excited by a photon to another d orbital of higher energy, therefore d–d transitions occur only for partially-filled d-orbital complexes (d). For complexes having d or d configuration, charge transfer is still possible even though d–d transitions are not. A charge transfer band entails promotion of an electron from a metal-based orbital into an empty ligand-based orbital (metal-to-ligand charge transfer or MLCT). The converse also occurs: excitation of an electron in a ligand-based orbital into an empty metal-based orbital (ligand-to-metal charge transfer or LMCT). These phenomena can be observed with the aid of electronic spectroscopy; also known as UV-Vis. For simple compounds with high symmetry, the d–d transitions can be assigned using Tanabe–Sugano diagrams. These assignments are gaining increased support with computational chemistry.
Superficially lanthanide complexes are similar to those of the transition metals in that some are colored. However, for the common Ln ions (Ln = lanthanide) the colors are all pale, and hardly influenced by the nature of the ligand. The colors are due to 4f electron transitions. As the 4f orbitals in lanthanides are "buried" in the xenon core and shielded from the ligand by the 5s and 5p orbitals they are therefore not influenced by the ligands to any great extent leading to a much smaller crystal field splitting than in the transition metals. The absorption spectra of an Ln ion approximates to that of the free ion where the electronic states are described by spin-orbit coupling. This contrasts to the transition metals where the ground state is split by the crystal field. Absorptions for Ln are weak as electric dipole transitions are parity forbidden (Laporte forbidden) but can gain intensity due to the effect of a low-symmetry ligand field or mixing with higher electronic states (e.g. d orbitals). f-f absorption bands are extremely sharp which contrasts with those observed for transition metals which generally have broad bands. This can lead to extremely unusual effects, such as significant color changes under different forms of lighting.
Metal complexes that have unpaired electrons are magnetic. Considering only monometallic complexes, unpaired electrons arise because the complex has an odd number of electrons or because electron pairing is destabilized. Thus, monomeric Ti(III) species have one "d-electron" and must be (para)magnetic, regardless of the geometry or the nature of the ligands. Ti(II), with two d-electrons, forms some complexes that have two unpaired electrons and others with none. This effect is illustrated by the compounds TiX2[(CH3)2PCH2CH2P(CH3)2]2: when X = Cl, the complex is paramagnetic (high-spin configuration), whereas when X = CH3, it is diamagnetic (low-spin configuration). It is important to realize that ligands provide an important means of adjusting the ground state properties.
In bi- and polymetallic complexes, in which the individual centres have an odd number of electrons or that are high-spin, the situation is more complicated. If there is interaction (either direct or through ligand) between the two (or more) metal centres, the electrons may couple (antiferromagnetic coupling, resulting in a diamagnetic compound), or they may enhance each other (ferromagnetic coupling). When there is no interaction, the two (or more) individual metal centers behave as if in two separate molecules.
Complexes show a variety of possible reactivities:
If the ligands around the metal are carefully chosen, the metal can aid in (stoichiometric or catalytic) transformations of molecules or be used as a sensor.
Metal complexes, also known as coordination compounds, include virtually all metal compounds. The study of "coordination chemistry" is the study of "inorganic chemistry" of all alkali and alkaline earth metals, transition metals, lanthanides, actinides, and metalloids. Thus, coordination chemistry is the chemistry of the majority of the periodic table. Metals and metal ions exist, in the condensed phases at least, only surrounded by ligands.
The areas of coordination chemistry can be classified according to the nature of the ligands, in broad terms:
Mineralogy, materials science, and solid state chemistry – as they apply to metal ions – are subsets of coordination chemistry in the sense that the metals are surrounded by ligands. In many cases these ligands are oxides or sulfides, but the metals are coordinated nonetheless, and the principles and guidelines discussed below apply. In hydrates, at least some of the ligands are water molecules. It is true that the focus of mineralogy, materials science, and solid state chemistry differs from the usual focus of coordination or inorganic chemistry. The former are concerned primarily with polymeric structures, properties arising from a collective effects of many highly interconnected metals. In contrast, coordination chemistry focuses on reactivity and properties of complexes containing individual metal atoms or small ensembles of metal atoms.
The basic procedure for naming a complex is:
Examples:
The coordination number of ligands attached to more than one metal (bridging ligands) is indicated by a subscript to the Greek symbol μ placed before the ligand name. Thus the dimer of aluminium trichloride is described by Al2Cl4(μ2-Cl)2.
Any anionic group can be electronically stabilized by any cation. An anionic complex can be stabilised by a hydrogen cation, becoming an acidic complex which can dissociate to release the cationic hydrogen. This kind of complex compound has a name with "ic" added after the central metal. For example, H2[Pt(CN)4] has the name tetracyanoplatinic (II) acid.
The affinity of metal ions for ligands is described by a stability constant, also called the formation constant, and is represented by the symbol Kf. It is the equilibrium constant for its assembly from the constituent metal and ligands, and can be calculated accordingly, as in the following example for a simple case:
where : x, y, and z are the stoichiometric coefficients of each species. M stands for metal / metal ion , the L for Lewis bases , and finally Z for complex ions. Formation constants vary widely. Large values indicate that the metal has high affinity for the ligand, provided the system is at equilibrium.
Sometimes the stability constant will be in a different form known as the constant of destability. This constant is expressed as the inverse of the constant of formation and is denoted as Kd = 1/Kf . This constant represents the reverse reaction for the decomposition of a complex ion into its individual metal and ligand components. When comparing the values for Kd, the larger the value, the more unstable the complex ion is.
As a result of these complex ions forming in solutions they also can play a key role in solubility of other compounds. When a complex ion is formed it can alter the concentrations of its components in the solution. For example:
If these reactions both occurred in the same reaction vessel, the solubility of the silver chloride would be increased by the presence of NH4OH because formation of the Diammine argentum(I) complex consumes a significant portion of the free silver ions from the solution. By Le Chatelier's principle, this causes the equilibrium reaction for the dissolving of the silver chloride, which has silver ion as a product, to shift to the right.
This new solubility can be calculated given the values of Kf and Ksp for the original reactions. The solubility is found essentially by combining the two separate equilibria into one combined equilibrium reaction and this combined reaction is the one that determines the new solubility. So Kc, the new solubility constant, is denoted by:
As metals only exist in solution as coordination complexes, it follows then that this class of compounds is useful in a wide variety of ways.
In bioinorganic chemistry and bioorganometallic chemistry, coordination complexes serve either structural or catalytic functions. An estimated 30% of proteins contain metal ions. Examples include the intensely colored vitamin B12, the heme group in hemoglobin, the cytochromes, the chlorin group in chlorophyll, and carboxypeptidase, a hydrolytic enzyme important in digestion. Another complex ion enzyme is catalase, which decomposes the cell's waste hydrogen peroxide. Synthetic coordination compounds are also used to bind to proteins and especially nucleic acids (e.g. anticancer drug cisplatin).
Homogeneous catalysis is a major application of coordination compounds for the production of organic substances. Processes include hydrogenation, hydroformylation, oxidation. In one example, a combination of titanium trichloride and triethylaluminium gives rise to Ziegler–Natta catalysts, used for the polymerization of ethylene and propylene to give polymers of great commercial importance as fibers, films, and plastics.
Nickel, cobalt, and copper can be extracted using hydrometallurgical processes involving complex ions. They are extracted from their ores as ammine complexes. Metals can also be separated using the selective precipitation and solubility of complex ions. Cyanide is used chiefly for extraction of gold and silver from their ores.
Phthalocyanine complexes are an important class of pigments.
At one time, coordination compounds were used to identify the presence of metals in a sample. Qualitative inorganic analysis has largely been superseded by instrumental methods of analysis such as atomic absorption spectroscopy (AAS), inductively coupled plasma atomic emission spectroscopy (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS). | [
{
"paragraph_id": 0,
"text": "A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the periodic table's d-block), are coordination complexes.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Coordination complexes are so pervasive that their structures and reactions are described in many ways, sometimes confusingly. The atom within a ligand that is bonded to the central metal atom or ion is called the donor atom. In a typical complex, a metal ion is bonded to several donor atoms, which can be the same or different. A polydentate (multiple bonded) ligand is a molecule or ion that bonds to the central atom through several of the ligand's atoms; ligands with 2, 3, 4 or even 6 bonds to the central atom are common. These complexes are called chelate complexes; the formation of such complexes is called chelation, complexation, and coordination.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 2,
"text": "The central atom or ion, together with all ligands, comprise the coordination sphere. The central atoms or ion and the donor atoms comprise the first coordination sphere.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 3,
"text": "Coordination refers to the \"coordinate covalent bonds\" (dipolar bonds) between the ligands and the central atom. Originally, a complex implied a reversible association of molecules, atoms, or ions through such weak chemical bonds. As applied to coordination chemistry, this meaning has evolved. Some metal complexes are formed virtually irreversibly and many are bound together by bonds that are quite strong.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 4,
"text": "The number of donor atoms attached to the central atom or ion is called the coordination number. The most common coordination numbers are 2, 4, and especially 6. A hydrated ion is one kind of a complex ion (or simply a complex), a species formed between a central metal ion and one or more surrounding ligands, molecules or ions that contain at least one lone pair of electrons.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 5,
"text": "If all the ligands are monodentate, then the number of donor atoms equals the number of ligands. For example, the cobalt(II) hexahydrate ion or the hexaaquacobalt(II) ion [Co(H2O)6] is a hydrated-complex ion that consists of six water molecules attached to a metal ion Co. The oxidation state and the coordination number reflect the number of bonds formed between the metal ion and the ligands in the complex ion. However, the coordination number of Pt(en)2 is 4 (rather than 2) since it has two bidentate ligands, which contain four donor atoms in total.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 6,
"text": "Any donor atom will give a pair of electrons. There are some donor atoms or groups which can offer more than one pair of electrons. Such are called bidentate (offers two pairs of electrons) or polydentate (offers more than two pairs of electrons). In some cases an atom or a group offers a pair of electrons to two similar or different central metal atoms or acceptors—by division of the electron pair—into a three-center two-electron bond. These are called bridging ligands.",
"title": "Nomenclature and terminology"
},
{
"paragraph_id": 7,
"text": "Coordination complexes have been known since the beginning of modern chemistry. Early well-known coordination complexes include dyes such as Prussian blue. Their properties were first well understood in the late 1800s, following the 1869 work of Christian Wilhelm Blomstrand. Blomstrand developed what has come to be known as the complex ion chain theory. In considering metal amine complexes, he theorized that the ammonia molecules compensated for the charge of the ion by forming chains of the type [(NH3)X], where X is the coordination number of the metal ion. He compared his theoretical ammonia chains to hydrocarbons of the form (CH2)X.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "Following this theory, Danish scientist Sophus Mads Jørgensen made improvements to it. In his version of the theory, Jørgensen claimed that when a molecule dissociates in a solution there were two possible outcomes: the ions would bind via the ammonia chains Blomstrand had described or the ions would bind directly to the metal.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "It was not until 1893 that the most widely accepted version of the theory today was published by Alfred Werner. Werner's work included two important changes to the Blomstrand theory. The first was that Werner described the two possibilities in terms of location in the coordination sphere. He claimed that if the ions were to form a chain, this would occur outside of the coordination sphere while the ions that bound directly to the metal would do so within the coordination sphere. In one of his most important discoveries however Werner disproved the majority of the chain theory. Werner discovered the spatial arrangements of the ligands that were involved in the formation of the complex hexacoordinate cobalt. His theory allows one to understand the difference between a coordinated ligand and a charge balancing ion in a compound, for example the chloride ion in the cobaltammine chlorides and to explain many of the previously inexplicable isomers.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In 1911, Werner first resolved the coordination complex hexol into optical isomers, overthrowing the theory that only carbon compounds could possess chirality.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "The ions or molecules surrounding the central atom are called ligands. Ligands are classified as L or X (or a combination thereof), depending on how many electrons they provide for the bond between ligand and central atom. L ligands provide two electrons from a lone electron pair, resulting in a coordinate covalent bond. X ligands provide one electron, with the central atom providing the other electron, thus forming a regular covalent bond. The ligands are said to be coordinated to the atom. For alkenes, the pi bonds can coordinate to metal atoms. An example is ethylene in the complex [PtCl3(C2H4)] (Zeise's salt).",
"title": "Structures"
},
{
"paragraph_id": 12,
"text": "In coordination chemistry, a structure is first described by its coordination number, the number of ligands attached to the metal (more specifically, the number of donor atoms). Usually one can count the ligands attached, but sometimes even the counting can become ambiguous. Coordination numbers are normally between two and nine, but large numbers of ligands are not uncommon for the lanthanides and actinides. The number of bonds depends on the size, charge, and electron configuration of the metal ion and the ligands. Metal ions may have more than one coordination number.",
"title": "Structures"
},
{
"paragraph_id": 13,
"text": "Typically the chemistry of transition metal complexes is dominated by interactions between s and p molecular orbitals of the donor-atoms in the ligands and the d orbitals of the metal ions. The s, p, and d orbitals of the metal can accommodate 18 electrons (see 18-Electron rule). The maximum coordination number for a certain metal is thus related to the electronic configuration of the metal ion (to be more specific, the number of empty orbitals) and to the ratio of the size of the ligands and the metal ion. Large metals and small ligands lead to high coordination numbers, e.g. [Mo(CN)8]. Small metals with large ligands lead to low coordination numbers, e.g. Pt[P(CMe3)]2. Due to their large size, lanthanides, actinides, and early transition metals tend to have high coordination numbers.",
"title": "Structures"
},
{
"paragraph_id": 14,
"text": "Most structures follow the points-on-a-sphere pattern (or, as if the central atom were in the middle of a polyhedron where the corners of that shape are the locations of the ligands), where orbital overlap (between ligand and metal orbitals) and ligand-ligand repulsions tend to lead to certain regular geometries. The most observed geometries are listed below, but there are many cases that deviate from a regular geometry, e.g. due to the use of ligands of diverse types (which results in irregular bond lengths; the coordination atoms do not follow a points-on-a-sphere pattern), due to the size of ligands, or due to electronic effects (see, e.g., Jahn–Teller distortion):",
"title": "Structures"
},
{
"paragraph_id": 15,
"text": "The idealized descriptions of 5-, 7-, 8-, and 9- coordination are often indistinct geometrically from alternative structures with slightly differing L-M-L (ligand-metal-ligand) angles, e.g. the difference between square pyramidal and trigonal bipyramidal structures.",
"title": "Structures"
},
{
"paragraph_id": 16,
"text": "To distinguish between the alternative coordinations for five-coordinated complexes, the τ geometry index was invented by Addison et al. This index depends on angles by the coordination center and changes between 0 for the square pyramidal to 1 for trigonal bipyramidal structures, allowing to classify the cases in between. This system was later extended to four-coordinated complexes by Houser et al. and also Okuniewski et al.",
"title": "Structures"
},
{
"paragraph_id": 17,
"text": "In systems with low d electron count, due to special electronic effects such as (second-order) Jahn–Teller stabilization, certain geometries (in which the coordination atoms do not follow a points-on-a-sphere pattern) are stabilized relative to the other possibilities, e.g. for some compounds the trigonal prismatic geometry is stabilized relative to octahedral structures for six-coordination.",
"title": "Structures"
},
{
"paragraph_id": 18,
"text": "The arrangement of the ligands is fixed for a given complex, but in some cases it is mutable by a reaction that forms another stable isomer.",
"title": "Structures"
},
{
"paragraph_id": 19,
"text": "There exist many kinds of isomerism in coordination complexes, just as in many other compounds.",
"title": "Structures"
},
{
"paragraph_id": 20,
"text": "Stereoisomerism occurs with the same bonds in distinct orientations. Stereoisomerism can be further classified into:",
"title": "Structures"
},
{
"paragraph_id": 21,
"text": "Cis–trans isomerism occurs in octahedral and square planar complexes (but not tetrahedral). When two ligands are adjacent they are said to be cis, when opposite each other, trans. When three identical ligands occupy one face of an octahedron, the isomer is said to be facial, or fac. In a fac isomer, any two identical ligands are adjacent or cis to each other. If these three ligands and the metal ion are in one plane, the isomer is said to be meridional, or mer. A mer isomer can be considered as a combination of a trans and a cis, since it contains both trans and cis pairs of identical ligands.",
"title": "Structures"
},
{
"paragraph_id": 22,
"text": "Optical isomerism occurs when a complex is not superimposable with its mirror image. It is so called because the two isomers are each optically active, that is, they rotate the plane of polarized light in opposite directions. In the first molecule shown, the symbol Λ (lambda) is used as a prefix to describe the left-handed propeller twist formed by three bidentate ligands. The second molecule is the mirror image of the first, with the symbol Δ (delta) as a prefix for the right-handed propeller twist. The third and fourth molecules are a similar pair of Λ and Δ isomers, in this case with two bidentate ligands and two identical monodentate ligands.",
"title": "Structures"
},
{
"paragraph_id": 23,
"text": "Structural isomerism occurs when the bonds are themselves different. Four types of structural isomerism are recognized: ionisation isomerism, solvate or hydrate isomerism, linkage isomerism and coordination isomerism.",
"title": "Structures"
},
{
"paragraph_id": 24,
"text": "Many of the properties of transition metal complexes are dictated by their electronic structures. The electronic structure can be described by a relatively ionic model that ascribes formal charges to the metals and ligands. This approach is the essence of crystal field theory (CFT). Crystal field theory, introduced by Hans Bethe in 1929, gives a quantum mechanically based attempt at understanding complexes. But crystal field theory treats all interactions in a complex as ionic and assumes that the ligands can be approximated by negative point charges.",
"title": "Electronic properties"
},
{
"paragraph_id": 25,
"text": "More sophisticated models embrace covalency, and this approach is described by ligand field theory (LFT) and Molecular orbital theory (MO). Ligand field theory, introduced in 1935 and built from molecular orbital theory, can handle a broader range of complexes and can explain complexes in which the interactions are covalent. The chemical applications of group theory can aid in the understanding of crystal or ligand field theory, by allowing simple, symmetry based solutions to the formal equations.",
"title": "Electronic properties"
},
{
"paragraph_id": 26,
"text": "Chemists tend to employ the simplest model required to predict the properties of interest; for this reason, CFT has been a favorite for the discussions when possible. MO and LF theories are more complicated, but provide a more realistic perspective.",
"title": "Electronic properties"
},
{
"paragraph_id": 27,
"text": "The electronic configuration of the complexes gives them some important properties:",
"title": "Electronic properties"
},
{
"paragraph_id": 28,
"text": "Transition metal complexes often have spectacular colors caused by electronic transitions by the absorption of light. For this reason they are often applied as pigments. Most transitions that are related to colored metal complexes are either d–d transitions or charge transfer bands. In a d–d transition, an electron in a d orbital on the metal is excited by a photon to another d orbital of higher energy, therefore d–d transitions occur only for partially-filled d-orbital complexes (d). For complexes having d or d configuration, charge transfer is still possible even though d–d transitions are not. A charge transfer band entails promotion of an electron from a metal-based orbital into an empty ligand-based orbital (metal-to-ligand charge transfer or MLCT). The converse also occurs: excitation of an electron in a ligand-based orbital into an empty metal-based orbital (ligand-to-metal charge transfer or LMCT). These phenomena can be observed with the aid of electronic spectroscopy; also known as UV-Vis. For simple compounds with high symmetry, the d–d transitions can be assigned using Tanabe–Sugano diagrams. These assignments are gaining increased support with computational chemistry.",
"title": "Electronic properties"
},
{
"paragraph_id": 29,
"text": "Superficially lanthanide complexes are similar to those of the transition metals in that some are colored. However, for the common Ln ions (Ln = lanthanide) the colors are all pale, and hardly influenced by the nature of the ligand. The colors are due to 4f electron transitions. As the 4f orbitals in lanthanides are \"buried\" in the xenon core and shielded from the ligand by the 5s and 5p orbitals they are therefore not influenced by the ligands to any great extent leading to a much smaller crystal field splitting than in the transition metals. The absorption spectra of an Ln ion approximates to that of the free ion where the electronic states are described by spin-orbit coupling. This contrasts to the transition metals where the ground state is split by the crystal field. Absorptions for Ln are weak as electric dipole transitions are parity forbidden (Laporte forbidden) but can gain intensity due to the effect of a low-symmetry ligand field or mixing with higher electronic states (e.g. d orbitals). f-f absorption bands are extremely sharp which contrasts with those observed for transition metals which generally have broad bands. This can lead to extremely unusual effects, such as significant color changes under different forms of lighting.",
"title": "Electronic properties"
},
{
"paragraph_id": 30,
"text": "Metal complexes that have unpaired electrons are magnetic. Considering only monometallic complexes, unpaired electrons arise because the complex has an odd number of electrons or because electron pairing is destabilized. Thus, monomeric Ti(III) species have one \"d-electron\" and must be (para)magnetic, regardless of the geometry or the nature of the ligands. Ti(II), with two d-electrons, forms some complexes that have two unpaired electrons and others with none. This effect is illustrated by the compounds TiX2[(CH3)2PCH2CH2P(CH3)2]2: when X = Cl, the complex is paramagnetic (high-spin configuration), whereas when X = CH3, it is diamagnetic (low-spin configuration). It is important to realize that ligands provide an important means of adjusting the ground state properties.",
"title": "Electronic properties"
},
{
"paragraph_id": 31,
"text": "In bi- and polymetallic complexes, in which the individual centres have an odd number of electrons or that are high-spin, the situation is more complicated. If there is interaction (either direct or through ligand) between the two (or more) metal centres, the electrons may couple (antiferromagnetic coupling, resulting in a diamagnetic compound), or they may enhance each other (ferromagnetic coupling). When there is no interaction, the two (or more) individual metal centers behave as if in two separate molecules.",
"title": "Electronic properties"
},
{
"paragraph_id": 32,
"text": "Complexes show a variety of possible reactivities:",
"title": "Electronic properties"
},
{
"paragraph_id": 33,
"text": "If the ligands around the metal are carefully chosen, the metal can aid in (stoichiometric or catalytic) transformations of molecules or be used as a sensor.",
"title": "Electronic properties"
},
{
"paragraph_id": 34,
"text": "Metal complexes, also known as coordination compounds, include virtually all metal compounds. The study of \"coordination chemistry\" is the study of \"inorganic chemistry\" of all alkali and alkaline earth metals, transition metals, lanthanides, actinides, and metalloids. Thus, coordination chemistry is the chemistry of the majority of the periodic table. Metals and metal ions exist, in the condensed phases at least, only surrounded by ligands.",
"title": "Classification"
},
{
"paragraph_id": 35,
"text": "The areas of coordination chemistry can be classified according to the nature of the ligands, in broad terms:",
"title": "Classification"
},
{
"paragraph_id": 36,
"text": "Mineralogy, materials science, and solid state chemistry – as they apply to metal ions – are subsets of coordination chemistry in the sense that the metals are surrounded by ligands. In many cases these ligands are oxides or sulfides, but the metals are coordinated nonetheless, and the principles and guidelines discussed below apply. In hydrates, at least some of the ligands are water molecules. It is true that the focus of mineralogy, materials science, and solid state chemistry differs from the usual focus of coordination or inorganic chemistry. The former are concerned primarily with polymeric structures, properties arising from a collective effects of many highly interconnected metals. In contrast, coordination chemistry focuses on reactivity and properties of complexes containing individual metal atoms or small ensembles of metal atoms.",
"title": "Classification"
},
{
"paragraph_id": 37,
"text": "The basic procedure for naming a complex is:",
"title": "Nomenclature of coordination complexes"
},
{
"paragraph_id": 38,
"text": "Examples:",
"title": "Nomenclature of coordination complexes"
},
{
"paragraph_id": 39,
"text": "The coordination number of ligands attached to more than one metal (bridging ligands) is indicated by a subscript to the Greek symbol μ placed before the ligand name. Thus the dimer of aluminium trichloride is described by Al2Cl4(μ2-Cl)2.",
"title": "Nomenclature of coordination complexes"
},
{
"paragraph_id": 40,
"text": "Any anionic group can be electronically stabilized by any cation. An anionic complex can be stabilised by a hydrogen cation, becoming an acidic complex which can dissociate to release the cationic hydrogen. This kind of complex compound has a name with \"ic\" added after the central metal. For example, H2[Pt(CN)4] has the name tetracyanoplatinic (II) acid.",
"title": "Nomenclature of coordination complexes"
},
{
"paragraph_id": 41,
"text": "The affinity of metal ions for ligands is described by a stability constant, also called the formation constant, and is represented by the symbol Kf. It is the equilibrium constant for its assembly from the constituent metal and ligands, and can be calculated accordingly, as in the following example for a simple case:",
"title": "Stability constant"
},
{
"paragraph_id": 42,
"text": "where : x, y, and z are the stoichiometric coefficients of each species. M stands for metal / metal ion , the L for Lewis bases , and finally Z for complex ions. Formation constants vary widely. Large values indicate that the metal has high affinity for the ligand, provided the system is at equilibrium.",
"title": "Stability constant"
},
{
"paragraph_id": 43,
"text": "Sometimes the stability constant will be in a different form known as the constant of destability. This constant is expressed as the inverse of the constant of formation and is denoted as Kd = 1/Kf . This constant represents the reverse reaction for the decomposition of a complex ion into its individual metal and ligand components. When comparing the values for Kd, the larger the value, the more unstable the complex ion is.",
"title": "Stability constant"
},
{
"paragraph_id": 44,
"text": "As a result of these complex ions forming in solutions they also can play a key role in solubility of other compounds. When a complex ion is formed it can alter the concentrations of its components in the solution. For example:",
"title": "Stability constant"
},
{
"paragraph_id": 45,
"text": "If these reactions both occurred in the same reaction vessel, the solubility of the silver chloride would be increased by the presence of NH4OH because formation of the Diammine argentum(I) complex consumes a significant portion of the free silver ions from the solution. By Le Chatelier's principle, this causes the equilibrium reaction for the dissolving of the silver chloride, which has silver ion as a product, to shift to the right.",
"title": "Stability constant"
},
{
"paragraph_id": 46,
"text": "This new solubility can be calculated given the values of Kf and Ksp for the original reactions. The solubility is found essentially by combining the two separate equilibria into one combined equilibrium reaction and this combined reaction is the one that determines the new solubility. So Kc, the new solubility constant, is denoted by:",
"title": "Stability constant"
},
{
"paragraph_id": 47,
"text": "As metals only exist in solution as coordination complexes, it follows then that this class of compounds is useful in a wide variety of ways.",
"title": "Application of coordination compounds"
},
{
"paragraph_id": 48,
"text": "In bioinorganic chemistry and bioorganometallic chemistry, coordination complexes serve either structural or catalytic functions. An estimated 30% of proteins contain metal ions. Examples include the intensely colored vitamin B12, the heme group in hemoglobin, the cytochromes, the chlorin group in chlorophyll, and carboxypeptidase, a hydrolytic enzyme important in digestion. Another complex ion enzyme is catalase, which decomposes the cell's waste hydrogen peroxide. Synthetic coordination compounds are also used to bind to proteins and especially nucleic acids (e.g. anticancer drug cisplatin).",
"title": "Application of coordination compounds"
},
{
"paragraph_id": 49,
"text": "Homogeneous catalysis is a major application of coordination compounds for the production of organic substances. Processes include hydrogenation, hydroformylation, oxidation. In one example, a combination of titanium trichloride and triethylaluminium gives rise to Ziegler–Natta catalysts, used for the polymerization of ethylene and propylene to give polymers of great commercial importance as fibers, films, and plastics.",
"title": "Application of coordination compounds"
},
{
"paragraph_id": 50,
"text": "Nickel, cobalt, and copper can be extracted using hydrometallurgical processes involving complex ions. They are extracted from their ores as ammine complexes. Metals can also be separated using the selective precipitation and solubility of complex ions. Cyanide is used chiefly for extraction of gold and silver from their ores.",
"title": "Application of coordination compounds"
},
{
"paragraph_id": 51,
"text": "Phthalocyanine complexes are an important class of pigments.",
"title": "Application of coordination compounds"
},
{
"paragraph_id": 52,
"text": "At one time, coordination compounds were used to identify the presence of metals in a sample. Qualitative inorganic analysis has largely been superseded by instrumental methods of analysis such as atomic absorption spectroscopy (AAS), inductively coupled plasma atomic emission spectroscopy (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS).",
"title": "Application of coordination compounds"
}
] | A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals, are coordination complexes. | 2001-12-02T23:29:55Z | 2023-12-23T03:06:06Z | [
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7,305 | Coleco | Coleco Industries, Inc. (/kəˈliːkoʊ/) was an American company founded in 1932 by Maurice Greenberg as The Connecticut Leather Company. It was a successful toy company in the 1980s, mass-producing versions of Cabbage Patch Kids dolls and its video game consoles, the Coleco Telstar dedicated consoles and ColecoVision. While the company ceased operations in 1988 as a result of bankruptcy, the Coleco brand was revived in 2005, and remains active to this day.
Coleco Industries, Inc. began in 1932 as The Connecticut Leather Company. The business supplied leather and "shoe findings" (the supplies and paraphernalia of a shoe repair shop) to shoe repairers. In 1938, the company began selling rubber footwear. During World War II demand for the company's supplies increased and by the end of the war, the company was larger and had expanded into new and used shoe machinery, hat cleaning equipment and marble shoeshine stands.
By the early 1950s, and thanks to Maurice Greenberg's son, Leonard Greenberg, the company had diversified further and was making leather lacing and leathercraft kits. In 1954, at the New York Toy Fair, their leather moccasin kit was selected as a Child Guidance Prestige Toy, and Connecticut Leather Company decided to commit to the toy business. In 1956, Leonard read about the emerging technology of vacuum formed plastic; the company adopted this and it became increasingly successful, producing a wide variety of plastic toys and wading pools.
In 1961, the leather and shoe findings portion of the business was sold, and Connecticut Leather Company became Coleco Industries, Inc. On January 9, 1962, Coleco went public, offering 120,000 shares of stock at $5.00 a share.
In 1963, the company acquired the Kestral Corporation of Springfield, Massachusetts, a manufacturer of inflatable vinyl pools and toys. This led to Coleco becoming the largest manufacturer of above-ground swimming pools in the world.
In 1966, Leonard persuaded his brother Arnold Greenberg to join the company. Further acquisitions included Playtime Products (1966) and Eagle Toys of Canada (1968). By the end of the 1960s, Coleco operated ten manufacturing facilities and occupied a new corporate headquarters in Hartford, Connecticut.
Coleco experienced financial difficulty during the 1970s, even though sales had grown to $48.6 million in 1971. In 1972 Coleco entered the snowmobile market through acquisition. Lower than expected snowfall that year and market conditions led to very reduced sales and poor profits.
Dozens of companies rushed to introduce game systems in 1976 year after the release of Atari's successful Pong console and the company entered the video game console business with the Telstar. Nearly all of the new game systems were based on General Instrument's "Pong-on-a-chip". General Instrument had underestimated demand, resulting in severe shortages. However, Coleco was one of the first to place an order and therefore one of the few companies to receive the full order. Though dedicated game consoles did not last long on the market, their early order enabled Coleco to break even.
Coleco continued to perform well in electronics. The company transitioned into handheld electronic games, a market popularized by Mattel. An early success was Electronic Quarterback. Coleco produced two popular lines of games, the "head to head" series of two player sports games (Football, Baseball, Basketball, Soccer, Hockey, Boxing) and the Mini-Arcade series of licensed video arcade titles such as Donkey Kong and Ms. Pac-Man. A third line of educational handhelds was also produced and included the Electronic Learning Machine, Lil Genius, Digits, and a trivia game called Quiz Wiz. Launched in 1982, their first four tabletop Mini-Arcades, for Pac-Man, Galaxian, Donkey Kong, and Frogger, sold approximately three million units within a year. Among these, 1.5 million units were sold for Pac-Man alone. In 1983, it released three more Mini-Arcades: for Ms. Pac-Man, Donkey Kong Junior, and Zaxxon.
Coleco returned to the video game console market in 1982 with the launch of the ColecoVision. The system was quite popular, and came bundled with a copy of Donkey Kong. The console sold 560,000 units in 1982. Coleco also hedged its bet on video games by introducing a line of ROM cartridges for the Atari 2600 and Intellivision, selling six million cartridges for both systems, along with two million sold for the ColecoVision for a total of eight million cartridges sold in 1982. It also introduced the Coleco Gemini, a clone of the popular Atari 2600, which came bundled with a copy of Donkey Kong.
When the video game business began to implode in 1983, it seemed clear that video game consoles were being supplanted by home computers. Bob Greenberg, son of Leonard Greenberg and nephew of Arnold Greenberg, left Microsoft where he had been working as a program developer at the time to assist in Coleco's entry into this market. Coleco's strategy was to introduce the Coleco Adam home computer, both as a stand-alone system and as an expansion module to the ColecoVision. The effort failed, in part because Adams were often unreliable due to being released with fatal bugs, and in part because the computer's release coincided with the home computer industry crashing. Coleco withdrew from electronics early in 1985.
In 1983, Coleco released the Cabbage Patch Kids series of dolls which were wildly successful. In the same year, Dr. Seuss signed a deal with Coleco to design a line of toys, including home video games based on his characters. Flush with success, Coleco purchased Leisure Dynamics (manufacturer of the board games Aggravation and Perfection) and beleaguered Selchow and Righter, manufacturers of Scrabble, Parcheesi, and Trivial Pursuit, in 1986. Sales of Selchow & Righter games had plummeted, leaving them with warehouses full of unsold games. The purchase price for Selchow & Righter was $75 million. That same year, Coleco introduced an ALF plush, based on the furry alien character who had his own television series at the time, as well as a talking version and a cassette-playing "Storytelling ALF" doll. The combination of the purchase of Selchow & Righter, the disastrous Adam computer, and the public's waning infatuation with Cabbage Patch Dolls all contributed to Coleco's financial decline. In 1988, the company filed for Chapter 11 bankruptcy.
The reorganized Coleco sold off all of its North American assets and outsourced thousands of jobs to foreign countries, closing plants in Amsterdam, New York and other cities. In 1988, Canada-based SLM Action Sports Inc. purchased Coleco's swimming pool and snow goods divisions. In 1989, Hasbro purchased most of Coleco's remaining product lines.
Coleco as a brand name has been owned by several entities since it was created in 1961 by Coleco Industries, Inc.
In 2005, River West Brands, now Dormitus Brands, a Chicago-based brand revitalization company, re-introduced the Coleco brand to the marketplace. In late 2006, the company introduced the Coleco Sonic, a handheld system containing twenty Master System and Game Gear games, including two from the Sonic the Hedgehog series. In 2014, River West Brands established the subsidiary Coleco Holdings for their Coleco-branded projects.
In December 2015, Coleco Holdings announced the development of the Coleco Chameleon, a new cartridge-based video game system; in actuality, a re-branding of the controversial Retro VGS console, whose Indiegogo campaign failed to secure funding when it ended in early November 2015, with only $63,546 raised of its $1.95 million goal. In the press release, it was established that the system would be able to play new and classic games in the 8, 16, and 32-bit styles. The release for the system was announced to be sometime in early 2016, with a demonstration at Toy Fair New York in February. However, some critics suggested that the prototype fell short of its developmental goals and was nothing more than the motherboard of a Super NES model SNS-101 inside an Atari Jaguar case. Later mock images of a prototype posted by AtariAge showed the device utilizing a CCTV capture card in place of a motherboard. After Retro VGS failed to produce a fully working prototype, Coleco Holdings pulled out of involvement with Retro VGS, terminating the project. | [
{
"paragraph_id": 0,
"text": "Coleco Industries, Inc. (/kəˈliːkoʊ/) was an American company founded in 1932 by Maurice Greenberg as The Connecticut Leather Company. It was a successful toy company in the 1980s, mass-producing versions of Cabbage Patch Kids dolls and its video game consoles, the Coleco Telstar dedicated consoles and ColecoVision. While the company ceased operations in 1988 as a result of bankruptcy, the Coleco brand was revived in 2005, and remains active to this day.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Coleco Industries, Inc. began in 1932 as The Connecticut Leather Company. The business supplied leather and \"shoe findings\" (the supplies and paraphernalia of a shoe repair shop) to shoe repairers. In 1938, the company began selling rubber footwear. During World War II demand for the company's supplies increased and by the end of the war, the company was larger and had expanded into new and used shoe machinery, hat cleaning equipment and marble shoeshine stands.",
"title": "Overview"
},
{
"paragraph_id": 2,
"text": "By the early 1950s, and thanks to Maurice Greenberg's son, Leonard Greenberg, the company had diversified further and was making leather lacing and leathercraft kits. In 1954, at the New York Toy Fair, their leather moccasin kit was selected as a Child Guidance Prestige Toy, and Connecticut Leather Company decided to commit to the toy business. In 1956, Leonard read about the emerging technology of vacuum formed plastic; the company adopted this and it became increasingly successful, producing a wide variety of plastic toys and wading pools.",
"title": "Overview"
},
{
"paragraph_id": 3,
"text": "In 1961, the leather and shoe findings portion of the business was sold, and Connecticut Leather Company became Coleco Industries, Inc. On January 9, 1962, Coleco went public, offering 120,000 shares of stock at $5.00 a share.",
"title": "Overview"
},
{
"paragraph_id": 4,
"text": "In 1963, the company acquired the Kestral Corporation of Springfield, Massachusetts, a manufacturer of inflatable vinyl pools and toys. This led to Coleco becoming the largest manufacturer of above-ground swimming pools in the world.",
"title": "Overview"
},
{
"paragraph_id": 5,
"text": "In 1966, Leonard persuaded his brother Arnold Greenberg to join the company. Further acquisitions included Playtime Products (1966) and Eagle Toys of Canada (1968). By the end of the 1960s, Coleco operated ten manufacturing facilities and occupied a new corporate headquarters in Hartford, Connecticut.",
"title": "Overview"
},
{
"paragraph_id": 6,
"text": "Coleco experienced financial difficulty during the 1970s, even though sales had grown to $48.6 million in 1971. In 1972 Coleco entered the snowmobile market through acquisition. Lower than expected snowfall that year and market conditions led to very reduced sales and poor profits.",
"title": "Overview"
},
{
"paragraph_id": 7,
"text": "Dozens of companies rushed to introduce game systems in 1976 year after the release of Atari's successful Pong console and the company entered the video game console business with the Telstar. Nearly all of the new game systems were based on General Instrument's \"Pong-on-a-chip\". General Instrument had underestimated demand, resulting in severe shortages. However, Coleco was one of the first to place an order and therefore one of the few companies to receive the full order. Though dedicated game consoles did not last long on the market, their early order enabled Coleco to break even.",
"title": "Overview"
},
{
"paragraph_id": 8,
"text": "Coleco continued to perform well in electronics. The company transitioned into handheld electronic games, a market popularized by Mattel. An early success was Electronic Quarterback. Coleco produced two popular lines of games, the \"head to head\" series of two player sports games (Football, Baseball, Basketball, Soccer, Hockey, Boxing) and the Mini-Arcade series of licensed video arcade titles such as Donkey Kong and Ms. Pac-Man. A third line of educational handhelds was also produced and included the Electronic Learning Machine, Lil Genius, Digits, and a trivia game called Quiz Wiz. Launched in 1982, their first four tabletop Mini-Arcades, for Pac-Man, Galaxian, Donkey Kong, and Frogger, sold approximately three million units within a year. Among these, 1.5 million units were sold for Pac-Man alone. In 1983, it released three more Mini-Arcades: for Ms. Pac-Man, Donkey Kong Junior, and Zaxxon.",
"title": "Overview"
},
{
"paragraph_id": 9,
"text": "Coleco returned to the video game console market in 1982 with the launch of the ColecoVision. The system was quite popular, and came bundled with a copy of Donkey Kong. The console sold 560,000 units in 1982. Coleco also hedged its bet on video games by introducing a line of ROM cartridges for the Atari 2600 and Intellivision, selling six million cartridges for both systems, along with two million sold for the ColecoVision for a total of eight million cartridges sold in 1982. It also introduced the Coleco Gemini, a clone of the popular Atari 2600, which came bundled with a copy of Donkey Kong.",
"title": "Overview"
},
{
"paragraph_id": 10,
"text": "When the video game business began to implode in 1983, it seemed clear that video game consoles were being supplanted by home computers. Bob Greenberg, son of Leonard Greenberg and nephew of Arnold Greenberg, left Microsoft where he had been working as a program developer at the time to assist in Coleco's entry into this market. Coleco's strategy was to introduce the Coleco Adam home computer, both as a stand-alone system and as an expansion module to the ColecoVision. The effort failed, in part because Adams were often unreliable due to being released with fatal bugs, and in part because the computer's release coincided with the home computer industry crashing. Coleco withdrew from electronics early in 1985.",
"title": "Overview"
},
{
"paragraph_id": 11,
"text": "In 1983, Coleco released the Cabbage Patch Kids series of dolls which were wildly successful. In the same year, Dr. Seuss signed a deal with Coleco to design a line of toys, including home video games based on his characters. Flush with success, Coleco purchased Leisure Dynamics (manufacturer of the board games Aggravation and Perfection) and beleaguered Selchow and Righter, manufacturers of Scrabble, Parcheesi, and Trivial Pursuit, in 1986. Sales of Selchow & Righter games had plummeted, leaving them with warehouses full of unsold games. The purchase price for Selchow & Righter was $75 million. That same year, Coleco introduced an ALF plush, based on the furry alien character who had his own television series at the time, as well as a talking version and a cassette-playing \"Storytelling ALF\" doll. The combination of the purchase of Selchow & Righter, the disastrous Adam computer, and the public's waning infatuation with Cabbage Patch Dolls all contributed to Coleco's financial decline. In 1988, the company filed for Chapter 11 bankruptcy.",
"title": "Overview"
},
{
"paragraph_id": 12,
"text": "The reorganized Coleco sold off all of its North American assets and outsourced thousands of jobs to foreign countries, closing plants in Amsterdam, New York and other cities. In 1988, Canada-based SLM Action Sports Inc. purchased Coleco's swimming pool and snow goods divisions. In 1989, Hasbro purchased most of Coleco's remaining product lines.",
"title": "Overview"
},
{
"paragraph_id": 13,
"text": "Coleco as a brand name has been owned by several entities since it was created in 1961 by Coleco Industries, Inc.",
"title": "Brand"
},
{
"paragraph_id": 14,
"text": "In 2005, River West Brands, now Dormitus Brands, a Chicago-based brand revitalization company, re-introduced the Coleco brand to the marketplace. In late 2006, the company introduced the Coleco Sonic, a handheld system containing twenty Master System and Game Gear games, including two from the Sonic the Hedgehog series. In 2014, River West Brands established the subsidiary Coleco Holdings for their Coleco-branded projects.",
"title": "Brand"
},
{
"paragraph_id": 15,
"text": "In December 2015, Coleco Holdings announced the development of the Coleco Chameleon, a new cartridge-based video game system; in actuality, a re-branding of the controversial Retro VGS console, whose Indiegogo campaign failed to secure funding when it ended in early November 2015, with only $63,546 raised of its $1.95 million goal. In the press release, it was established that the system would be able to play new and classic games in the 8, 16, and 32-bit styles. The release for the system was announced to be sometime in early 2016, with a demonstration at Toy Fair New York in February. However, some critics suggested that the prototype fell short of its developmental goals and was nothing more than the motherboard of a Super NES model SNS-101 inside an Atari Jaguar case. Later mock images of a prototype posted by AtariAge showed the device utilizing a CCTV capture card in place of a motherboard. After Retro VGS failed to produce a fully working prototype, Coleco Holdings pulled out of involvement with Retro VGS, terminating the project.",
"title": "Brand"
}
] | Coleco Industries, Inc. was an American company founded in 1932 by Maurice Greenberg as The Connecticut Leather Company. It was a successful toy company in the 1980s, mass-producing versions of Cabbage Patch Kids dolls and its video game consoles, the Coleco Telstar dedicated consoles and ColecoVision. While the company ceased operations in 1988 as a result of bankruptcy, the Coleco brand was revived in 2005, and remains active to this day. | 2002-02-25T15:43:11Z | 2023-12-04T01:25:07Z | [
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] | https://en.wikipedia.org/wiki/Coleco |
7,306 | ColecoVision | ColecoVision is a second-generation home video-game console developed by Coleco and launched in North America in August 1982. It was released a year later in Europe by CBS Electronics as the CBS ColecoVision.
The console offered a closer experience to more powerful arcade video games compared to competitors such as the Atari 2600 and Intellivision. The initial catalog of twelve games on ROM cartridge included the first home version of Nintendo's Donkey Kong as the pack-in game. Approximately 136 games were published between 1982 and 1984, including Sega's Zaxxon and some ports of lesser known arcade games that found a larger audience on the console, such as Lady Bug, Cosmic Avenger, and Venture.
Coleco released a series of hardware add-ons and special controllers to expand the capabilities of the console. "Expansion Module #1" allowed the system to play Atari 2600 cartridges. A later module converted ColecoVision into the Coleco Adam home computer.
ColecoVision was discontinued in 1985 when Coleco withdrew from the video game market. Coleco had already contemplated shifting focus to their Cabbage Patch Kids success after the costly failure of their Coleco Adam computer.
Coleco entered the video game market in 1976 during the dedicated-game home console period with their line of Telstar consoles. When that market became oversaturated over the next few years, the company nearly went bankrupt, but found a successful product through handheld electronic games, with products that beat out those of the current market leader, Mattel. The company also developed a line of miniaturized tabletop arcade video games with licensed rights from arcade game makers including Sega, Bally, Midway, and Nintendo. Coleco was able to survive on sales of their electronic games through to 1982, but that market itself began to wane, and Coleco president Arnold Greenberg was still interested in producing a home video game console.
According to Eric Bromley, who led the engineering for the ColecoVision, Greenberg had wanted to get into the programmable home console market with arcade-quality games, but the cost of components had been a limiting factor. As early as 1979, Bromley had drawn out specifications for a system using a Texas Instruments video and a General Instruments audio chip, but could not get the go-ahead due to the cost of RAM. Around 1981, Bromley saw an article in The Wall Street Journal that asserted the price of RAM had fallen and, after working the cost numbers, Bromley found the system cost fell within their cost margins. Within ten minutes of reporting this to Greenberg, they had established the working name "ColecoVision" for the console as they began a more thorough design, which the marketing department never was able to surpass.
Coleco recognized that licensed conversion of arcade conversions had worked for Atari in selling the Atari VCS, so they had approached Nintendo around 1981 for potential access to their arcade titles. Bromley described a tense set of meetings with Nintendo's president Hiroshi Yamauchi under typical Japanese customs where he sought to negotiate for game rights, though Yamauchi only offered seemingly obscure titles. After a meal with Yamauchi during one day, Bromley excused himself to the restroom and happened upon one of the first Donkey Kong cabinets, which had yet to be released to Western countries. Knowing this game would likely be a hit, Bromley arranged a meeting the following day with Yamauchi and requested the exclusive rights to Donkey Kong; Yamauchi offered them if only they could provide $200,000 upfront by that day and gave them $2 per unit sold. Greenberg agreed, though as in Japanese custom, Bromley did not have a formal contract from Nintendo on his return. By the time of that year's Consumer Electronics Show, which Yamauchi was attending, Bromley found out from Yamauchi's daughter and translator that he had apparently given the rights to Atari. With Yamauchi's daughter's help, Bromley was able to commit Yamauchi to sign a formal contract to affirm the rights to Coleco. Coleco's announcement that they would bundle Donkey Kong with the console was initially met with surprise and skepticism, with journalists and retailers questioning why they would give away their most anticipated home video game with the console.
The ColecoVision was released in August 1982. By Christmas 1982, Coleco had sold more than 500,000 units, in part on the strength of Donkey Kong as the bundled game. ColecoVision's main competitor was the less commercially successful Atari 5200. Sales quickly passed 1 million in early 1983.
The ColecoVision was distributed by CBS Electronics outside of North America and was branded the CBS ColecoVision. In Europe, the console was released in July 1983, nearly one year after the North American release. Sega Enterprises attempted a Japanese version of the console, but it was retooled into the SG-1000 before release.
By the beginning of 1984, quarterly sales of the ColecoVision had dramatically decreased. In January 1985, Coleco discontinued the Adam, which was a home computer expansion for ColecoVision. By mid-1985, Coleco planned to withdraw from the video game market, and the ColecoVision was officially discontinued by October. Total sales are uncertain, but were ultimately in excess of 2 million consoles, with the console continuing to sell modestly up until its discontinuation.
In 1983, Spectravideo announced the SV-603 ColecoVision Video Game Adapter for its SV-318 computer. The company stated that the $70 product allowed users to "enjoy the entire library of exciting ColecoVision video-game cartridges".
ColecoVision is based around the Zilog Z80 CPU and a variant of the Texas Instruments TMS9918 video chip that was introduced in 1979.
On NTSC ColecoVision consoles, all first-party cartridges and most third-party software titles feature a 12.7 second pause before presenting the game select screen. CBS Electronics reduced this pause in the BIOS to 3.3 seconds for their PAL and SECAM ColecoVision consoles.
From its introduction, Coleco touted the ColecoVision's hardware expandability by highlighting the Expansion Module Interface on the front of the unit. These hardware expansion modules and accessories were sold separately.
Expansion Module #1 makes the ColecoVision compatible with Atari 2600 cartridges and controllers. It leveraged the fact that the 2600 used largely off-the-shelf components and was effectively a complete set of 2600 electronics, including a reverse-engineered equivalent of the 2600's sole custom chip, the TIA. The ColecoVision console did not do any translation or processing of the game code on the 2600 cartridges; it only provided power and clock input to and audio/video output from the expansion module, which was otherwise entirely self-contained and could be thought of as the first Atari 2600 clone console. Functionally, this gave the ColecoVision the largest software library of any console of its day. The expansion module prompted legal action from Atari. Coleco and Atari settled out of court, with Coleco becoming licensed under Atari's patents. The royalty-based license also applied to Coleco's Gemini game system, a stand-alone clone of the 2600.
Expansion Module #2 is a driving controller (steering wheel / gas pedal) that came packaged with the cartridge Turbo. The gas pedal is merely a simple on/off switch. Although Coleco called the driving controller an expansion module, it actually plugs into the controller port, not the Expansion Module Interface. The driving controller is also compatible with the cartridges Destructor, Bump 'n' Jump, Pitstop, and The Dukes of Hazzard.
Expansion Module #3 converts the ColecoVision into the Adam computer, complete with keyboard, digital data pack (DDP) cassette drive, 64 KB RAM, and printer.
The Roller Controller is a trackball that came packaged with the cartridge Slither, a conversion of the arcade game. The roller controller uses a special power connector that is not compatible with Expansion Module #3 (the Adam computer). Coleco mailed an adapter to owners of both units who complained. The other cartridge programmed to use the roller controller is Victory. A joystick mode switch on the roller controller allows it to be used with all cartridges including WarGames, Omega Race, and Atarisoft's Centipede.
The Super Action Controller Set, available in September 1983, is a set of two handheld joystick controllers that came packaged with the cartridge Super Action Baseball. Each controller has a ball-top joystick, four finger triggered action buttons, a 12-button numeric keypad, and a "speed roller". The cartridges Super Action Football, Rocky Super Action Boxing, and a conversion of the arcade game Front Line are also designed to be used with the Super Action Controller.
Expansion Module #3 was originally the Super Game Module. It was advertised for an August 1983 release but was ultimately cancelled and replaced with the Adam computer expansion. The Super Game Module added a tape drive known as the Exatron Stringy Floppy with 128KB capacity, and the additional RAM, said to be 30 KB, to load and execute programs from tape. Games could be distributed on tiny tapes, called wafers, and be much larger than the 16KB or 32 KB ROM cartridges of the day. Super Donkey Kong, with all screens and animations, Super Donkey Kong Jr, and Super Smurf Rescue were demonstrated with the Super Game Module. The Adam computer expansion with its 256 KB tape drive and 64 KB RAM fulfilled the specifications promised by the Super Game Module.
Masayuki Uemura, head of Famicom development, stated that the ColecoVision set the bar that influenced how he approached the creation of the Famicom. During the creation of the Nintendo Entertainment System, Takao Sawano, chief manager of the project, brought a ColecoVision home to his family, who were impressed by the system's capability to produce smooth graphics, which contrasted with the flickering commonly seen on Atari 2600 games.
In 1986, Bit Corporation produced a ColecoVision clone called the Dina, which was sold in the United States by Telegames as the Telegames Personal Arcade.
IGN named the ColecoVision their 12th-best video-game console out of their list of 25, citing "its incredible accuracy in bringing current-generation arcade hits home."
In 1996, the first homebrew ColecoVision game was released: a Tetris clone titled Kevtris.
In 1997, Telegames released Personal Arcade Vol. 1, a collection of ColecoVision games for Microsoft Windows, and a 1998 follow-up, Colecovision Hits Volume One.
In 2012, Opcode Games released their own Super Game Module expansion, which increases RAM from 1 KB to 32 KB and adds four additional sound channels. This expansion brings the ColecoVision close to the MSX architecture standard, allowing MSX software to be more easily ported.
In 2014, AtGames began producing the ColecoVision Flashback console that includes 60 games, but not the original pack-in game, Donkey Kong. | [
{
"paragraph_id": 0,
"text": "ColecoVision is a second-generation home video-game console developed by Coleco and launched in North America in August 1982. It was released a year later in Europe by CBS Electronics as the CBS ColecoVision.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The console offered a closer experience to more powerful arcade video games compared to competitors such as the Atari 2600 and Intellivision. The initial catalog of twelve games on ROM cartridge included the first home version of Nintendo's Donkey Kong as the pack-in game. Approximately 136 games were published between 1982 and 1984, including Sega's Zaxxon and some ports of lesser known arcade games that found a larger audience on the console, such as Lady Bug, Cosmic Avenger, and Venture.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Coleco released a series of hardware add-ons and special controllers to expand the capabilities of the console. \"Expansion Module #1\" allowed the system to play Atari 2600 cartridges. A later module converted ColecoVision into the Coleco Adam home computer.",
"title": ""
},
{
"paragraph_id": 3,
"text": "ColecoVision was discontinued in 1985 when Coleco withdrew from the video game market. Coleco had already contemplated shifting focus to their Cabbage Patch Kids success after the costly failure of their Coleco Adam computer.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Coleco entered the video game market in 1976 during the dedicated-game home console period with their line of Telstar consoles. When that market became oversaturated over the next few years, the company nearly went bankrupt, but found a successful product through handheld electronic games, with products that beat out those of the current market leader, Mattel. The company also developed a line of miniaturized tabletop arcade video games with licensed rights from arcade game makers including Sega, Bally, Midway, and Nintendo. Coleco was able to survive on sales of their electronic games through to 1982, but that market itself began to wane, and Coleco president Arnold Greenberg was still interested in producing a home video game console.",
"title": "Development"
},
{
"paragraph_id": 5,
"text": "According to Eric Bromley, who led the engineering for the ColecoVision, Greenberg had wanted to get into the programmable home console market with arcade-quality games, but the cost of components had been a limiting factor. As early as 1979, Bromley had drawn out specifications for a system using a Texas Instruments video and a General Instruments audio chip, but could not get the go-ahead due to the cost of RAM. Around 1981, Bromley saw an article in The Wall Street Journal that asserted the price of RAM had fallen and, after working the cost numbers, Bromley found the system cost fell within their cost margins. Within ten minutes of reporting this to Greenberg, they had established the working name \"ColecoVision\" for the console as they began a more thorough design, which the marketing department never was able to surpass.",
"title": "Development"
},
{
"paragraph_id": 6,
"text": "Coleco recognized that licensed conversion of arcade conversions had worked for Atari in selling the Atari VCS, so they had approached Nintendo around 1981 for potential access to their arcade titles. Bromley described a tense set of meetings with Nintendo's president Hiroshi Yamauchi under typical Japanese customs where he sought to negotiate for game rights, though Yamauchi only offered seemingly obscure titles. After a meal with Yamauchi during one day, Bromley excused himself to the restroom and happened upon one of the first Donkey Kong cabinets, which had yet to be released to Western countries. Knowing this game would likely be a hit, Bromley arranged a meeting the following day with Yamauchi and requested the exclusive rights to Donkey Kong; Yamauchi offered them if only they could provide $200,000 upfront by that day and gave them $2 per unit sold. Greenberg agreed, though as in Japanese custom, Bromley did not have a formal contract from Nintendo on his return. By the time of that year's Consumer Electronics Show, which Yamauchi was attending, Bromley found out from Yamauchi's daughter and translator that he had apparently given the rights to Atari. With Yamauchi's daughter's help, Bromley was able to commit Yamauchi to sign a formal contract to affirm the rights to Coleco. Coleco's announcement that they would bundle Donkey Kong with the console was initially met with surprise and skepticism, with journalists and retailers questioning why they would give away their most anticipated home video game with the console.",
"title": "Development"
},
{
"paragraph_id": 7,
"text": "The ColecoVision was released in August 1982. By Christmas 1982, Coleco had sold more than 500,000 units, in part on the strength of Donkey Kong as the bundled game. ColecoVision's main competitor was the less commercially successful Atari 5200. Sales quickly passed 1 million in early 1983.",
"title": "Release"
},
{
"paragraph_id": 8,
"text": "The ColecoVision was distributed by CBS Electronics outside of North America and was branded the CBS ColecoVision. In Europe, the console was released in July 1983, nearly one year after the North American release. Sega Enterprises attempted a Japanese version of the console, but it was retooled into the SG-1000 before release.",
"title": "Release"
},
{
"paragraph_id": 9,
"text": "By the beginning of 1984, quarterly sales of the ColecoVision had dramatically decreased. In January 1985, Coleco discontinued the Adam, which was a home computer expansion for ColecoVision. By mid-1985, Coleco planned to withdraw from the video game market, and the ColecoVision was officially discontinued by October. Total sales are uncertain, but were ultimately in excess of 2 million consoles, with the console continuing to sell modestly up until its discontinuation.",
"title": "Release"
},
{
"paragraph_id": 10,
"text": "In 1983, Spectravideo announced the SV-603 ColecoVision Video Game Adapter for its SV-318 computer. The company stated that the $70 product allowed users to \"enjoy the entire library of exciting ColecoVision video-game cartridges\".",
"title": "Release"
},
{
"paragraph_id": 11,
"text": "ColecoVision is based around the Zilog Z80 CPU and a variant of the Texas Instruments TMS9918 video chip that was introduced in 1979.",
"title": "Hardware"
},
{
"paragraph_id": 12,
"text": "On NTSC ColecoVision consoles, all first-party cartridges and most third-party software titles feature a 12.7 second pause before presenting the game select screen. CBS Electronics reduced this pause in the BIOS to 3.3 seconds for their PAL and SECAM ColecoVision consoles.",
"title": "Hardware"
},
{
"paragraph_id": 13,
"text": "From its introduction, Coleco touted the ColecoVision's hardware expandability by highlighting the Expansion Module Interface on the front of the unit. These hardware expansion modules and accessories were sold separately.",
"title": "Hardware"
},
{
"paragraph_id": 14,
"text": "Expansion Module #1 makes the ColecoVision compatible with Atari 2600 cartridges and controllers. It leveraged the fact that the 2600 used largely off-the-shelf components and was effectively a complete set of 2600 electronics, including a reverse-engineered equivalent of the 2600's sole custom chip, the TIA. The ColecoVision console did not do any translation or processing of the game code on the 2600 cartridges; it only provided power and clock input to and audio/video output from the expansion module, which was otherwise entirely self-contained and could be thought of as the first Atari 2600 clone console. Functionally, this gave the ColecoVision the largest software library of any console of its day. The expansion module prompted legal action from Atari. Coleco and Atari settled out of court, with Coleco becoming licensed under Atari's patents. The royalty-based license also applied to Coleco's Gemini game system, a stand-alone clone of the 2600.",
"title": "Hardware"
},
{
"paragraph_id": 15,
"text": "Expansion Module #2 is a driving controller (steering wheel / gas pedal) that came packaged with the cartridge Turbo. The gas pedal is merely a simple on/off switch. Although Coleco called the driving controller an expansion module, it actually plugs into the controller port, not the Expansion Module Interface. The driving controller is also compatible with the cartridges Destructor, Bump 'n' Jump, Pitstop, and The Dukes of Hazzard.",
"title": "Hardware"
},
{
"paragraph_id": 16,
"text": "Expansion Module #3 converts the ColecoVision into the Adam computer, complete with keyboard, digital data pack (DDP) cassette drive, 64 KB RAM, and printer.",
"title": "Hardware"
},
{
"paragraph_id": 17,
"text": "The Roller Controller is a trackball that came packaged with the cartridge Slither, a conversion of the arcade game. The roller controller uses a special power connector that is not compatible with Expansion Module #3 (the Adam computer). Coleco mailed an adapter to owners of both units who complained. The other cartridge programmed to use the roller controller is Victory. A joystick mode switch on the roller controller allows it to be used with all cartridges including WarGames, Omega Race, and Atarisoft's Centipede.",
"title": "Hardware"
},
{
"paragraph_id": 18,
"text": "The Super Action Controller Set, available in September 1983, is a set of two handheld joystick controllers that came packaged with the cartridge Super Action Baseball. Each controller has a ball-top joystick, four finger triggered action buttons, a 12-button numeric keypad, and a \"speed roller\". The cartridges Super Action Football, Rocky Super Action Boxing, and a conversion of the arcade game Front Line are also designed to be used with the Super Action Controller.",
"title": "Hardware"
},
{
"paragraph_id": 19,
"text": "Expansion Module #3 was originally the Super Game Module. It was advertised for an August 1983 release but was ultimately cancelled and replaced with the Adam computer expansion. The Super Game Module added a tape drive known as the Exatron Stringy Floppy with 128KB capacity, and the additional RAM, said to be 30 KB, to load and execute programs from tape. Games could be distributed on tiny tapes, called wafers, and be much larger than the 16KB or 32 KB ROM cartridges of the day. Super Donkey Kong, with all screens and animations, Super Donkey Kong Jr, and Super Smurf Rescue were demonstrated with the Super Game Module. The Adam computer expansion with its 256 KB tape drive and 64 KB RAM fulfilled the specifications promised by the Super Game Module.",
"title": "Hardware"
},
{
"paragraph_id": 20,
"text": "Masayuki Uemura, head of Famicom development, stated that the ColecoVision set the bar that influenced how he approached the creation of the Famicom. During the creation of the Nintendo Entertainment System, Takao Sawano, chief manager of the project, brought a ColecoVision home to his family, who were impressed by the system's capability to produce smooth graphics, which contrasted with the flickering commonly seen on Atari 2600 games.",
"title": "Legacy"
},
{
"paragraph_id": 21,
"text": "In 1986, Bit Corporation produced a ColecoVision clone called the Dina, which was sold in the United States by Telegames as the Telegames Personal Arcade.",
"title": "Legacy"
},
{
"paragraph_id": 22,
"text": "IGN named the ColecoVision their 12th-best video-game console out of their list of 25, citing \"its incredible accuracy in bringing current-generation arcade hits home.\"",
"title": "Legacy"
},
{
"paragraph_id": 23,
"text": "In 1996, the first homebrew ColecoVision game was released: a Tetris clone titled Kevtris.",
"title": "Legacy"
},
{
"paragraph_id": 24,
"text": "In 1997, Telegames released Personal Arcade Vol. 1, a collection of ColecoVision games for Microsoft Windows, and a 1998 follow-up, Colecovision Hits Volume One.",
"title": "Legacy"
},
{
"paragraph_id": 25,
"text": "In 2012, Opcode Games released their own Super Game Module expansion, which increases RAM from 1 KB to 32 KB and adds four additional sound channels. This expansion brings the ColecoVision close to the MSX architecture standard, allowing MSX software to be more easily ported.",
"title": "Legacy"
},
{
"paragraph_id": 26,
"text": "In 2014, AtGames began producing the ColecoVision Flashback console that includes 60 games, but not the original pack-in game, Donkey Kong.",
"title": "Legacy"
}
] | ColecoVision is a second-generation home video-game console developed by Coleco and launched in North America in August 1982. It was released a year later in Europe by CBS Electronics as the CBS ColecoVision. The console offered a closer experience to more powerful arcade video games compared to competitors such as the Atari 2600 and Intellivision. The initial catalog of twelve games on ROM cartridge included the first home version of Nintendo's Donkey Kong as the pack-in game. Approximately 136 games were published between 1982 and 1984, including Sega's Zaxxon and some ports of lesser known arcade games that found a larger audience on the console, such as Lady Bug, Cosmic Avenger, and Venture. Coleco released a series of hardware add-ons and special controllers to expand the capabilities of the console. "Expansion Module #1" allowed the system to play Atari 2600 cartridges. A later module converted ColecoVision into the Coleco Adam home computer. ColecoVision was discontinued in 1985 when Coleco withdrew from the video game market. Coleco had already contemplated shifting focus to their Cabbage Patch Kids success after the costly failure of their Coleco Adam computer. | 2001-12-03T00:26:45Z | 2023-12-24T01:41:01Z | [
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7,309 | Coleco Telstar series | The Coleco Telstar brand is a series of dedicated first-generation home video game consoles produced, released and marketed by Coleco from 1976 to 1978. Starting with Coleco Telstar Pong clone based video game console on General Instrument's AY-3-8500 chip in 1976, there were 14 consoles released in the Coleco Telstar series. About one million units of the first model called Coleco Telstar were sold.
The large product lineup and the impending fading out of the Pong machines led Coleco to face near-bankruptcy in 1980. | [
{
"paragraph_id": 0,
"text": "The Coleco Telstar brand is a series of dedicated first-generation home video game consoles produced, released and marketed by Coleco from 1976 to 1978. Starting with Coleco Telstar Pong clone based video game console on General Instrument's AY-3-8500 chip in 1976, there were 14 consoles released in the Coleco Telstar series. About one million units of the first model called Coleco Telstar were sold.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The large product lineup and the impending fading out of the Pong machines led Coleco to face near-bankruptcy in 1980.",
"title": ""
}
] | The Coleco Telstar brand is a series of dedicated first-generation home video game consoles produced, released and marketed by Coleco from 1976 to 1978. Starting with Coleco Telstar Pong clone based video game console on General Instrument's AY-3-8500 chip in 1976, there were 14 consoles released in the Coleco Telstar series. About one million units of the first model called Coleco Telstar were sold. The large product lineup and the impending fading out of the Pong machines led Coleco to face near-bankruptcy in 1980. | 2001-12-03T00:14:15Z | 2023-09-26T23:08:16Z | [
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7,310 | Conventional warfare | Conventional warfare is a form of warfare conducted by using conventional weapons and battlefield tactics between two or more states in open confrontation. The forces on each side are well-defined and fight by using weapons that target primarily the opponent's military. It is normally fought by using conventional weapons, not chemical, biological, radiological, or nuclear weapons.
The general purpose of conventional warfare is to weaken or destroy the opponent's military, which negates its ability to engage in conventional warfare. In forcing capitulation, however, one or both sides may eventually resort to unconventional warfare tactics.
The state was first advocated by Plato but found more acceptance in the consolidation of power under the Roman Catholic Church. European monarchs then gained power as the Catholic Church was stripped of temporal power and was replaced by the divine right of kings. In 1648, the powers of Europe signed the Treaty of Westphalia, which ended the religious violence for purely political governance and outlook, signifying the birth of the modern state.
Within the statist paradigm, only the state and its appointed representatives may bear arms and enter into war. In fact, war then became understood only as a conflict between sovereign states. Monarchs strengthened that idea and gave it the force of law. Any noble had been allowed start a war, but European monarchs had to consolidate military power in response to the Napoleonic Wars.
Prussia was one of the countries that tried to amass military power. Carl von Clausewitz, one of Prussia's officers, wrote On War, a work rooted solely in the world of the state. All other forms of intrastate conflict, such as rebellion, are not accounted for because in theoretical terms, he could not account for warfare before the state. However, near the end of his life, he grew increasingly aware of the importance of non-state military actors, as is revealed in his conceptions of "the people in arms", which he noted arose from the same social and political sources as traditional interstate warfare.
Practices such as raiding or blood feuds were then labeled criminal activities and stripped of legitimacy. That war paradigm reflected the view of most of the modernized world in the early 21st century, as is verified by examination of the conventional armies of the time: large, high-maintenance, and technologically-advanced armies designed to compete against similarly-designed forces.
Clausewitz also forwarded the issue of casus belli. Wars had been fought for social, religious, or even cultural reasons, and Clausewitz taught that war is merely "a continuation of politics by other means." It is a rational calculation in which states fight for their interests (whether they are economic, security-related, or otherwise) once normal discourse has broken down.
Most modern wars have been conducted using the means of conventional means. Confirmed use of biological warfare by a nation state has not occurred since 1945, and chemical warfare has been used only a few times (the latest known confrontation in which it was utilized being the Syrian Civil War). Nuclear warfare has only occurred once: the American bombing the Japanese cities of Hiroshima and Nagasaki in August 1945.
The state and Clausewitzian principles peaked in the World Wars, during the 20th century, but they also laid the groundwork for their dilapidation from nuclear proliferation. During the Cold War, the superpowers sought to avoid open conflict between their respective forces, as both sides recognized that such a clash could very easily escalate and quickly involve nuclear weapons. Instead, the superpowers fought each other through their involvement in proxy wars, military buildups, and diplomatic standoffs. Thus, no two nuclear powers have yet fought a conventional war directly except for two brief skirmishes between China and Soviet Union in the 1969 Sino-Soviet conflict and between India and Pakistan in the 1999 Kargil War.
However, conventional wars have been fought since 1945 between countries without nuclear weapons, such as the Iran–Iraq War and Eritrean–Ethiopian War, or between a nuclear state and a weaker non-nuclear state, like the Gulf War and Russo-Ukrainian War.
Contrast: | [
{
"paragraph_id": 0,
"text": "Conventional warfare is a form of warfare conducted by using conventional weapons and battlefield tactics between two or more states in open confrontation. The forces on each side are well-defined and fight by using weapons that target primarily the opponent's military. It is normally fought by using conventional weapons, not chemical, biological, radiological, or nuclear weapons.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The general purpose of conventional warfare is to weaken or destroy the opponent's military, which negates its ability to engage in conventional warfare. In forcing capitulation, however, one or both sides may eventually resort to unconventional warfare tactics.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The state was first advocated by Plato but found more acceptance in the consolidation of power under the Roman Catholic Church. European monarchs then gained power as the Catholic Church was stripped of temporal power and was replaced by the divine right of kings. In 1648, the powers of Europe signed the Treaty of Westphalia, which ended the religious violence for purely political governance and outlook, signifying the birth of the modern state.",
"title": "History"
},
{
"paragraph_id": 3,
"text": "Within the statist paradigm, only the state and its appointed representatives may bear arms and enter into war. In fact, war then became understood only as a conflict between sovereign states. Monarchs strengthened that idea and gave it the force of law. Any noble had been allowed start a war, but European monarchs had to consolidate military power in response to the Napoleonic Wars.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "Prussia was one of the countries that tried to amass military power. Carl von Clausewitz, one of Prussia's officers, wrote On War, a work rooted solely in the world of the state. All other forms of intrastate conflict, such as rebellion, are not accounted for because in theoretical terms, he could not account for warfare before the state. However, near the end of his life, he grew increasingly aware of the importance of non-state military actors, as is revealed in his conceptions of \"the people in arms\", which he noted arose from the same social and political sources as traditional interstate warfare.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "Practices such as raiding or blood feuds were then labeled criminal activities and stripped of legitimacy. That war paradigm reflected the view of most of the modernized world in the early 21st century, as is verified by examination of the conventional armies of the time: large, high-maintenance, and technologically-advanced armies designed to compete against similarly-designed forces.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Clausewitz also forwarded the issue of casus belli. Wars had been fought for social, religious, or even cultural reasons, and Clausewitz taught that war is merely \"a continuation of politics by other means.\" It is a rational calculation in which states fight for their interests (whether they are economic, security-related, or otherwise) once normal discourse has broken down.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "Most modern wars have been conducted using the means of conventional means. Confirmed use of biological warfare by a nation state has not occurred since 1945, and chemical warfare has been used only a few times (the latest known confrontation in which it was utilized being the Syrian Civil War). Nuclear warfare has only occurred once: the American bombing the Japanese cities of Hiroshima and Nagasaki in August 1945.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "The state and Clausewitzian principles peaked in the World Wars, during the 20th century, but they also laid the groundwork for their dilapidation from nuclear proliferation. During the Cold War, the superpowers sought to avoid open conflict between their respective forces, as both sides recognized that such a clash could very easily escalate and quickly involve nuclear weapons. Instead, the superpowers fought each other through their involvement in proxy wars, military buildups, and diplomatic standoffs. Thus, no two nuclear powers have yet fought a conventional war directly except for two brief skirmishes between China and Soviet Union in the 1969 Sino-Soviet conflict and between India and Pakistan in the 1999 Kargil War.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "However, conventional wars have been fought since 1945 between countries without nuclear weapons, such as the Iran–Iraq War and Eritrean–Ethiopian War, or between a nuclear state and a weaker non-nuclear state, like the Gulf War and Russo-Ukrainian War.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "Contrast:",
"title": "See also"
}
] | Conventional warfare is a form of warfare conducted by using conventional weapons and battlefield tactics between two or more states in open confrontation. The forces on each side are well-defined and fight by using weapons that target primarily the opponent's military. It is normally fought by using conventional weapons, not chemical, biological, radiological, or nuclear weapons. The general purpose of conventional warfare is to weaken or destroy the opponent's military, which negates its ability to engage in conventional warfare. In forcing capitulation, however, one or both sides may eventually resort to unconventional warfare tactics. | 2023-02-13T16:33:20Z | [
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|
7,312 | Chauvinism | Chauvinism (/ˈʃoʊvɪnɪzəm/ SHOH-vih-nih-zəm) is the unreasonable belief in the superiority or dominance of one's own group or people, who are seen as strong and virtuous, while others are considered weak, unworthy, or inferior. The Encyclopaedia Britannica describes it as a form of excessive and unreasonable patriotism and nationalism, a fervent faith in national excellence and glory.
In English, the word has also come to be used in some quarters as shorthand for male chauvinism, a trend reflected in Merriam-Webster's Dictionary, which, as of 2018, began its first example of use of the term chauvinism with "an attitude of superiority toward members of the opposite sex".
According to legend, French soldier Nicolas Chauvin was badly wounded in the Napoleonic Wars and received a meager pension for his injuries. After Napoleon abdicated, Chauvin maintained his fanatical Bonapartist belief in the messianic mission of Imperial France, despite the unpopularity of this view under the Bourbon Restoration. His single-minded devotion to his cause, despite neglect by his faction and harassment by its enemies, started the use of the term.
Chauvinism has extended from its original use to include fanatical devotion and undue partiality to any group or cause to which one belongs, especially when such partisanship includes prejudice against or hostility toward outsiders or rival groups and persists even in the face of overwhelming opposition. This French quality finds its parallel in the English-language term jingoism, which has retained the meaning of chauvinism strictly in its original sense; that is, an attitude of belligerent nationalism.
In 1945, political theorist Hannah Arendt described the concept thus:
Chauvinism is an almost natural product of the national concept in so far as it springs directly from the old idea of the "national mission". ... [A] nation's mission might be interpreted precisely as bringing its light to other, less fortunate peoples that, for whatever reason, have miraculously been left by history without a national mission. As long as this concept did not develop into the ideology of chauvinism and remained in the rather vague realm of national or even nationalistic pride, it frequently resulted in a high sense of responsibility for the welfare of backward people.
In this sense, chauvinism is irrational, in that no one can claim their nation or ethnic group to be inherently superior to another.
An example of a modern-day British nationalist extreme enough to be labelled a chauvinist, as evidenced, for instance, in a 40-page background check by his own bank, is Nigel Farage. Farage himself admits to fighting for, inter alia, chauvinism. His association with extreme nationalist views, including chauvinism, is so well known that it has also been parodied.
Male chauvinism is the belief that men are superior to women. The first documented use of the phrase "male chauvinism" is in the 1935 Clifford Odets play Till the Day I Die.
The balance of the workforce changed during World War II. As men entered or were conscripted into the military to fight in the war, women started replacing them. After the war ended, men returned home to find jobs in the workplace now occupied by women, which "threatened the self-esteem many men derive from their dominance over women in the family, the economy, and society at large." Consequently, male chauvinism was on the rise, according to Cynthia B. Lloyd.
Lloyd and Michael Korda have argued that as they integrated back into the workforce, men returned to predominate, holding positions of power while women worked as their secretaries, usually typing dictations and answering telephone calls. This division of labor was understood and expected, and women typically felt unable to challenge their position or male superiors, argue Korda and Lloyd.
Chauvinist assumptions are seen by some as a bias in the TAT psychological personality test. Through cross-examinations, the TAT exhibits a tendency toward chauvinistic stimuli for its questions and has the "potential for unfavorable clinical evaluation" for women.
An often cited study done in 1976 by Sherwyn Woods, "Some Dynamics of Male Chauvinism", attempts to find the underlying causes of male chauvinism.
Male chauvinism was studied in the psychoanalytic therapy of 11 men. It refers to the maintenance of fixed beliefs and attitudes of male superiority, associated with overt or covert depreciation of women. Challenging chauvinist attitudes often results in anxiety or other symptoms. It is frequently not investigated in psychotherapy because it is ego-syntonic, parallels cultural attitudes, and because therapists often share similar bias or neurotic conflict. Chauvinism was found to represent an attempt to ward off anxiety and shame arising from one or more of four prime sources: unresolved infantile strivings and regressive wishes, hostile envy of women, oedipal anxiety, and power and dependency conflicts related to masculine self-esteem. Mothers were more important than fathers in the development of male chauvinism, and resolution was sometimes associated with decompensation in wives.
Adam Jukes argues that a reason for male chauvinism is masculinity itself:
For the vast majority of people all over the world, the mother is a primary carer...There's an asymmetry in the development of boys and girls. Infant boys have to learn how to be masculine. Girls don't. Masculinity is not in a state of crisis. Masculinity is a crisis. I don't believe misogyny is innate, but I believe it's inescapable because of the development of masculinity.
Female chauvinism is the belief that women are superior to men. Second-wave feminist Betty Friedan observed that "...the assumption that women have any moral or spiritual superiority as a class is [...] female chauvinism." Ariel Levy used the term in her book Female Chauvinist Pigs, in which she argues that many young women in the United States and beyond are replicating male chauvinism and older misogynist stereotypes. | [
{
"paragraph_id": 0,
"text": "Chauvinism (/ˈʃoʊvɪnɪzəm/ SHOH-vih-nih-zəm) is the unreasonable belief in the superiority or dominance of one's own group or people, who are seen as strong and virtuous, while others are considered weak, unworthy, or inferior. The Encyclopaedia Britannica describes it as a form of excessive and unreasonable patriotism and nationalism, a fervent faith in national excellence and glory.",
"title": ""
},
{
"paragraph_id": 1,
"text": "In English, the word has also come to be used in some quarters as shorthand for male chauvinism, a trend reflected in Merriam-Webster's Dictionary, which, as of 2018, began its first example of use of the term chauvinism with \"an attitude of superiority toward members of the opposite sex\".",
"title": ""
},
{
"paragraph_id": 2,
"text": "According to legend, French soldier Nicolas Chauvin was badly wounded in the Napoleonic Wars and received a meager pension for his injuries. After Napoleon abdicated, Chauvin maintained his fanatical Bonapartist belief in the messianic mission of Imperial France, despite the unpopularity of this view under the Bourbon Restoration. His single-minded devotion to his cause, despite neglect by his faction and harassment by its enemies, started the use of the term.",
"title": "As nationalism"
},
{
"paragraph_id": 3,
"text": "Chauvinism has extended from its original use to include fanatical devotion and undue partiality to any group or cause to which one belongs, especially when such partisanship includes prejudice against or hostility toward outsiders or rival groups and persists even in the face of overwhelming opposition. This French quality finds its parallel in the English-language term jingoism, which has retained the meaning of chauvinism strictly in its original sense; that is, an attitude of belligerent nationalism.",
"title": "As nationalism"
},
{
"paragraph_id": 4,
"text": "In 1945, political theorist Hannah Arendt described the concept thus:",
"title": "As nationalism"
},
{
"paragraph_id": 5,
"text": "Chauvinism is an almost natural product of the national concept in so far as it springs directly from the old idea of the \"national mission\". ... [A] nation's mission might be interpreted precisely as bringing its light to other, less fortunate peoples that, for whatever reason, have miraculously been left by history without a national mission. As long as this concept did not develop into the ideology of chauvinism and remained in the rather vague realm of national or even nationalistic pride, it frequently resulted in a high sense of responsibility for the welfare of backward people.",
"title": "As nationalism"
},
{
"paragraph_id": 6,
"text": "In this sense, chauvinism is irrational, in that no one can claim their nation or ethnic group to be inherently superior to another.",
"title": "As nationalism"
},
{
"paragraph_id": 7,
"text": "An example of a modern-day British nationalist extreme enough to be labelled a chauvinist, as evidenced, for instance, in a 40-page background check by his own bank, is Nigel Farage. Farage himself admits to fighting for, inter alia, chauvinism. His association with extreme nationalist views, including chauvinism, is so well known that it has also been parodied.",
"title": "As nationalism"
},
{
"paragraph_id": 8,
"text": "Male chauvinism is the belief that men are superior to women. The first documented use of the phrase \"male chauvinism\" is in the 1935 Clifford Odets play Till the Day I Die.",
"title": "Male chauvinism"
},
{
"paragraph_id": 9,
"text": "The balance of the workforce changed during World War II. As men entered or were conscripted into the military to fight in the war, women started replacing them. After the war ended, men returned home to find jobs in the workplace now occupied by women, which \"threatened the self-esteem many men derive from their dominance over women in the family, the economy, and society at large.\" Consequently, male chauvinism was on the rise, according to Cynthia B. Lloyd.",
"title": "Male chauvinism"
},
{
"paragraph_id": 10,
"text": "Lloyd and Michael Korda have argued that as they integrated back into the workforce, men returned to predominate, holding positions of power while women worked as their secretaries, usually typing dictations and answering telephone calls. This division of labor was understood and expected, and women typically felt unable to challenge their position or male superiors, argue Korda and Lloyd.",
"title": "Male chauvinism"
},
{
"paragraph_id": 11,
"text": "Chauvinist assumptions are seen by some as a bias in the TAT psychological personality test. Through cross-examinations, the TAT exhibits a tendency toward chauvinistic stimuli for its questions and has the \"potential for unfavorable clinical evaluation\" for women.",
"title": "Male chauvinism"
},
{
"paragraph_id": 12,
"text": "An often cited study done in 1976 by Sherwyn Woods, \"Some Dynamics of Male Chauvinism\", attempts to find the underlying causes of male chauvinism.",
"title": "Male chauvinism"
},
{
"paragraph_id": 13,
"text": "Male chauvinism was studied in the psychoanalytic therapy of 11 men. It refers to the maintenance of fixed beliefs and attitudes of male superiority, associated with overt or covert depreciation of women. Challenging chauvinist attitudes often results in anxiety or other symptoms. It is frequently not investigated in psychotherapy because it is ego-syntonic, parallels cultural attitudes, and because therapists often share similar bias or neurotic conflict. Chauvinism was found to represent an attempt to ward off anxiety and shame arising from one or more of four prime sources: unresolved infantile strivings and regressive wishes, hostile envy of women, oedipal anxiety, and power and dependency conflicts related to masculine self-esteem. Mothers were more important than fathers in the development of male chauvinism, and resolution was sometimes associated with decompensation in wives.",
"title": "Male chauvinism"
},
{
"paragraph_id": 14,
"text": "Adam Jukes argues that a reason for male chauvinism is masculinity itself:",
"title": "Male chauvinism"
},
{
"paragraph_id": 15,
"text": "For the vast majority of people all over the world, the mother is a primary carer...There's an asymmetry in the development of boys and girls. Infant boys have to learn how to be masculine. Girls don't. Masculinity is not in a state of crisis. Masculinity is a crisis. I don't believe misogyny is innate, but I believe it's inescapable because of the development of masculinity.",
"title": "Male chauvinism"
},
{
"paragraph_id": 16,
"text": "Female chauvinism is the belief that women are superior to men. Second-wave feminist Betty Friedan observed that \"...the assumption that women have any moral or spiritual superiority as a class is [...] female chauvinism.\" Ariel Levy used the term in her book Female Chauvinist Pigs, in which she argues that many young women in the United States and beyond are replicating male chauvinism and older misogynist stereotypes.",
"title": "Female chauvinism"
}
] | Chauvinism is the unreasonable belief in the superiority or dominance of one's own group or people, who are seen as strong and virtuous, while others are considered weak, unworthy, or inferior. The Encyclopaedia Britannica describes it as a form of excessive and unreasonable patriotism and nationalism, a fervent faith in national excellence and glory. In English, the word has also come to be used in some quarters as shorthand for male chauvinism, a trend reflected in Merriam-Webster's Dictionary, which, as of 2018, began its first example of use of the term chauvinism with "an attitude of superiority toward members of the opposite sex". | 2001-12-03T16:07:17Z | 2023-12-21T05:34:47Z | [
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7,316 | Hypothetical types of biochemistry | Hypothetical types of biochemistry are forms of biochemistry agreed to be scientifically viable but not proven to exist at this time. The kinds of living organisms currently known on Earth all use carbon compounds for basic structural and metabolic functions, water as a solvent, and DNA or RNA to define and control their form. If life exists on other planets or moons it may be chemically similar, though it is also possible that there are organisms with quite different chemistries – for instance, involving other classes of carbon compounds, compounds of another element, or another solvent in place of water.
The possibility of life-forms being based on "alternative" biochemistries is the topic of an ongoing scientific discussion, informed by what is known about extraterrestrial environments and about the chemical behaviour of various elements and compounds. It is of interest in synthetic biology and is also a common subject in science fiction.
The element silicon has been much discussed as a hypothetical alternative to carbon. Silicon is in the same group as carbon on the periodic table and, like carbon, it is tetravalent. Hypothetical alternatives to water include ammonia, which, like water, is a polar molecule, and cosmically abundant; and non-polar hydrocarbon solvents such as methane and ethane, which are known to exist in liquid form on the surface of Titan.
A shadow biosphere is a hypothetical microbial biosphere of Earth that uses radically different biochemical and molecular processes than currently known life. Although life on Earth is relatively well-studied, the shadow biosphere may still remain unnoticed because the exploration of the microbial world targets primarily the biochemistry of the macro-organisms.
Perhaps the least unusual alternative biochemistry would be one with differing chirality of its biomolecules. In known Earth-based life, amino acids are almost universally of the L form and sugars are of the D form. Molecules using D amino acids or L sugars may be possible; molecules of such a chirality, however, would be incompatible with organisms using the opposing chirality molecules. Amino acids whose chirality is opposite to the norm are found on Earth, and these substances are generally thought to result from decay of organisms of normal chirality. However, physicist Paul Davies speculates that some of them might be products of "anti-chiral" life.
It is questionable, however, whether such a biochemistry would be truly alien. Although it would certainly be an alternative stereochemistry, molecules that are overwhelmingly found in one enantiomer throughout the vast majority of organisms can nonetheless often be found in another enantiomer in different (often basal) organisms such as in comparisons between members of Archaea and other domains, making it an open topic whether an alternative stereochemistry is truly novel.
On Earth, all known living things have a carbon-based structure and system. Scientists have speculated about the pros and cons of using atoms other than carbon to form the molecular structures necessary for life, but no one has proposed a theory employing such atoms to form all the necessary structures. However, as Carl Sagan argued, it is very difficult to be certain whether a statement that applies to all life on Earth will turn out to apply to all life throughout the universe. Sagan used the term "carbon chauvinism" for such an assumption. He regarded silicon and germanium as conceivable alternatives to carbon (other plausible elements include but are not limited to palladium and titanium); but, on the other hand, he noted that carbon does seem more chemically versatile and is more abundant in the cosmos). Norman Horowitz devised the experiments to determine whether life might exist on Mars that were carried out by the Viking Lander of 1976, the first U.S. mission to successfully land an uncrewed probe on the surface of Mars. Horowitz argued that the great versatility of the carbon atom makes it the element most likely to provide solutions, even exotic solutions, to the problems of survival on other planets. He considered that there was only a remote possibility that non-carbon life forms could exist with genetic information systems capable of self-replication and the ability to evolve and adapt.
The silicon atom has been much discussed as the basis for an alternative biochemical system, because silicon has many chemical properties similar to those of carbon and is in the same group of the periodic table, the carbon group. Like carbon, silicon can create molecules that are sufficiently large to carry biological information.
However, silicon has several drawbacks as an alternative to carbon. Silicon, unlike carbon, lacks the ability to form chemical bonds with diverse types of atoms as is necessary for the chemical versatility required for metabolism, and yet this precise inability is what makes silicon less susceptible to bond with all sorts of impurities from which carbon, in comparison, is not shielded. Elements creating organic functional groups with carbon include hydrogen, oxygen, nitrogen, phosphorus, sulfur, and metals such as iron, magnesium, and zinc. Silicon, on the other hand, interacts with very few other types of atoms. Moreover, where it does interact with other atoms, silicon creates molecules that have been described as "monotonous compared with the combinatorial universe of organic macromolecules". This is because silicon atoms are much bigger, having a larger mass and atomic radius, and so have difficulty forming double bonds (the double-bonded carbon is part of the carbonyl group, a fundamental motif of carbon-based bio-organic chemistry).
Silanes, which are chemical compounds of hydrogen and silicon that are analogous to the alkane hydrocarbons, are highly reactive with water, and long-chain silanes spontaneously decompose. Molecules incorporating polymers of alternating silicon and oxygen atoms instead of direct bonds between silicon, known collectively as silicones, are much more stable. It has been suggested that silicone-based chemicals would be more stable than equivalent hydrocarbons in a sulfuric-acid-rich environment, as is found in some extraterrestrial locations.
Of the varieties of molecules identified in the interstellar medium as of 1998, 84 are based on carbon, while only 8 are based on silicon. Moreover, of those 8 compounds, 4 also include carbon within them. The cosmic abundance of carbon to silicon is roughly 10 to 1. This may suggest a greater variety of complex carbon compounds throughout the cosmos, providing less of a foundation on which to build silicon-based biologies, at least under the conditions prevalent on the surface of planets. Also, even though Earth and other terrestrial planets are exceptionally silicon-rich and carbon-poor (the relative abundance of silicon to carbon in Earth's crust is roughly 925:1), terrestrial life is carbon-based. The fact that carbon is used instead of silicon may be evidence that silicon is poorly suited for biochemistry on Earth-like planets. Reasons for this may be that silicon is less versatile than carbon in forming compounds, that the compounds formed by silicon are unstable, and that it blocks the flow of heat.
Even so, biogenic silica is used by some Earth life, such as the silicate skeletal structure of diatoms. According to the clay hypothesis of A. G. Cairns-Smith, silicate minerals in water played a crucial role in abiogenesis: they replicated their crystal structures, interacted with carbon compounds, and were the precursors of carbon-based life.
Although not observed in nature, carbon–silicon bonds have been added to biochemistry by using directed evolution (artificial selection). A heme containing cytochrome c protein from Rhodothermus marinus has been engineered using directed evolution to catalyze the formation of new carbon–silicon bonds between hydrosilanes and diazo compounds.
Silicon compounds may possibly be biologically useful under temperatures or pressures different from the surface of a terrestrial planet, either in conjunction with or in a role less directly analogous to carbon. Polysilanols, the silicon compounds corresponding to sugars, are soluble in liquid nitrogen, suggesting that they could play a role in very-low-temperature biochemistry.
Arsenic, which is chemically similar to phosphorus, while poisonous for most life forms on Earth, is incorporated into the biochemistry of some organisms. Some marine algae incorporate arsenic into complex organic molecules such as arsenosugars and arsenobetaines. Fungi and bacteria can produce volatile methylated arsenic compounds. Arsenate reduction and arsenite oxidation have been observed in microbes (Chrysiogenes arsenatis). Additionally, some prokaryotes can use arsenate as a terminal electron acceptor during anaerobic growth and some can utilize arsenite as an electron donor to generate energy.
It has been speculated that the earliest life forms on Earth may have used arsenic biochemistry in place of phosphorus in the structure of their DNA. A common objection to this scenario is that arsenate esters are so much less stable to hydrolysis than corresponding phosphate esters that arsenic is poorly suited for this function.
The authors of a 2010 geomicrobiology study, supported in part by NASA, have postulated that a bacterium, named GFAJ-1, collected in the sediments of Mono Lake in eastern California, can employ such 'arsenic DNA' when cultured without phosphorus. They proposed that the bacterium may employ high levels of poly-β-hydroxybutyrate or other means to reduce the effective concentration of water and stabilize its arsenate esters. This claim was heavily criticized almost immediately after publication for the perceived lack of appropriate controls. Science writer Carl Zimmer contacted several scientists for an assessment: "I reached out to a dozen experts ... Almost unanimously, they think the NASA scientists have failed to make their case". Other authors were unable to reproduce their results and showed that the study had issues with phosphate contamination, suggesting that the low amounts present could sustain extremophile lifeforms. Alternatively, it was suggested that GFAJ-1 cells grow by recycling phosphate from degraded ribosomes, rather than by replacing it with arsenate.
In addition to carbon compounds, all currently known terrestrial life also requires water as a solvent. This has led to discussions about whether water is the only liquid capable of filling that role. The idea that an extraterrestrial life-form might be based on a solvent other than water has been taken seriously in recent scientific literature by the biochemist Steven Benner, and by the astrobiological committee chaired by John A. Baross. Solvents discussed by the Baross committee include ammonia, sulfuric acid, formamide, hydrocarbons, and (at temperatures much lower than Earth's) liquid nitrogen, or hydrogen in the form of a supercritical fluid.
Carl Sagan once described himself as both a carbon chauvinist and a water chauvinist; however, on another occasion he said that he was a carbon chauvinist but "not that much of a water chauvinist". He speculated on hydrocarbons, hydrofluoric acid, and ammonia as possible alternatives to water.
Some of the properties of water that are important for life processes include:
Water as a compound is cosmically abundant, although much of it is in the form of vapour or ice. Subsurface liquid water is considered likely or possible on several of the outer moons: Enceladus (where geysers have been observed), Europa, Titan, and Ganymede. Earth and Titan are the only worlds currently known to have stable bodies of liquid on their surfaces.
Not all properties of water are necessarily advantageous for life, however. For instance, water ice has a high albedo, meaning that it reflects a significant quantity of light and heat from the Sun. During ice ages, as reflective ice builds up over the surface of the water, the effects of global cooling are increased.
There are some properties that make certain compounds and elements much more favorable than others as solvents in a successful biosphere. The solvent must be able to exist in liquid equilibrium over a range of temperatures the planetary object would normally encounter. Because boiling points vary with the pressure, the question tends not to be does the prospective solvent remain liquid, but at what pressure. For example, hydrogen cyanide has a narrow liquid-phase temperature range at 1 atmosphere, but in an atmosphere with the pressure of Venus, with 92 bars (91 atm) of pressure, it can indeed exist in liquid form over a wide temperature range.
The ammonia molecule (NH3), like the water molecule, is abundant in the universe, being a compound of hydrogen (the simplest and most common element) with another very common element, nitrogen. The possible role of liquid ammonia as an alternative solvent for life is an idea that goes back at least to 1954, when J. B. S. Haldane raised the topic at a symposium about life's origin.
Numerous chemical reactions are possible in an ammonia solution, and liquid ammonia has chemical similarities with water. Ammonia can dissolve most organic molecules at least as well as water does and, in addition, it is capable of dissolving many elemental metals. Haldane made the point that various common water-related organic compounds have ammonia-related analogs; for instance the ammonia-related amine group (−NH2) is analogous to the water-related hydroxyl group (−OH).
Ammonia, like water, can either accept or donate an H ion. When ammonia accepts an H, it forms the ammonium cation (NH4), analogous to hydronium (H3O). When it donates an H ion, it forms the amide anion (NH2), analogous to the hydroxide anion (OH). Compared to water, however, ammonia is more inclined to accept an H ion, and less inclined to donate one; it is a stronger nucleophile. Ammonia added to water functions as Arrhenius base: it increases the concentration of the anion hydroxide. Conversely, using a solvent system definition of acidity and basicity, water added to liquid ammonia functions as an acid, because it increases the concentration of the cation ammonium. The carbonyl group (C=O), which is much used in terrestrial biochemistry, would not be stable in ammonia solution, but the analogous imine group (C=NH) could be used instead.
However, ammonia has some problems as a basis for life. The hydrogen bonds between ammonia molecules are weaker than those in water, causing ammonia's heat of vaporization to be half that of water, its surface tension to be a third, and reducing its ability to concentrate non-polar molecules through a hydrophobic effect. Gerald Feinberg and Robert Shapiro have questioned whether ammonia could hold prebiotic molecules together well enough to allow the emergence of a self-reproducing system. Ammonia is also flammable in oxygen and could not exist sustainably in an environment suitable for aerobic metabolism.
A biosphere based on ammonia would likely exist at temperatures or air pressures that are extremely unusual in relation to life on Earth. Life on Earth usually exists within the melting point and boiling point of water, at a pressure designated as normal pressure, and between 0 and 100 °C (273 and 373 K). When also held to normal pressure, ammonia's melting and boiling points are −78 °C (195 K) and −33 °C (240 K) respectively. Because chemical reactions generally proceed more slowly at lower temperatures, ammonia-based life existing in this set of conditions might metabolize more slowly and evolve more slowly than life on Earth. On the other hand, lower temperatures could also enable living systems to use chemical species that would be too unstable at Earth temperatures to be useful.
Another set of conditions where ammonia is liquid at Earth-like temperatures would involve it being at a much higher pressure. For example, at 60 atm ammonia melts at −77 °C (196 K) and boils at 98 °C (371 K).
Ammonia and ammonia–water mixtures remain liquid at temperatures far below the freezing point of pure water, so such biochemistries might be well suited to planets and moons orbiting outside the water-based habitability zone. Such conditions could exist, for example, under the surface of Saturn's largest moon Titan.
Methane (CH4) is a simple hydrocarbon: that is, a compound of two of the most common elements in the cosmos: hydrogen and carbon. It has a cosmic abundance comparable with ammonia. Hydrocarbons could act as a solvent over a wide range of temperatures, but would lack polarity. Isaac Asimov, the biochemist and science fiction writer, suggested in 1981 that poly-lipids could form a substitute for proteins in a non-polar solvent such as methane. Lakes composed of a mixture of hydrocarbons, including methane and ethane, have been detected on the surface of Titan by the Cassini spacecraft.
There is debate about the effectiveness of methane and other hydrocarbons as a solvent for life compared to water or ammonia. Water is a stronger solvent than the hydrocarbons, enabling easier transport of substances in a cell. However, water is also more chemically reactive and can break down large organic molecules through hydrolysis. A life-form whose solvent was a hydrocarbon would not face the threat of its biomolecules being destroyed in this way. Also, the water molecule's tendency to form strong hydrogen bonds can interfere with internal hydrogen bonding in complex organic molecules. Life with a hydrocarbon solvent could make more use of hydrogen bonds within its biomolecules. Moreover, the strength of hydrogen bonds within biomolecules would be appropriate to a low-temperature biochemistry.
Astrobiologist Chris McKay has argued, on thermodynamic grounds, that if life does exist on Titan's surface, using hydrocarbons as a solvent, it is likely also to use the more complex hydrocarbons as an energy source by reacting them with hydrogen, reducing ethane and acetylene to methane. Possible evidence for this form of life on Titan was identified in 2010 by Darrell Strobel of Johns Hopkins University; a greater abundance of molecular hydrogen in the upper atmospheric layers of Titan compared to the lower layers, arguing for a downward diffusion at a rate of roughly 10 molecules per second and disappearance of hydrogen near Titan's surface. As Strobel noted, his findings were in line with the effects Chris McKay had predicted if methanogenic life-forms were present. The same year, another study showed low levels of acetylene on Titan's surface, which were interpreted by Chris McKay as consistent with the hypothesis of organisms reducing acetylene to methane. While restating the biological hypothesis, McKay cautioned that other explanations for the hydrogen and acetylene findings are to be considered more likely: the possibilities of yet unidentified physical or chemical processes (e.g. a non-living surface catalyst enabling acetylene to react with hydrogen), or flaws in the current models of material flow. He noted that even a non-biological catalyst effective at 95 K would in itself be a startling discovery.
A hypothetical cell membrane termed an azotosome, capable of functioning in liquid methane in Titan conditions was computer-modeled in an article published in February 2015. Composed of acrylonitrile, a small molecule containing carbon, hydrogen, and nitrogen, it is predicted to have stability and flexibility in liquid methane comparable to that of a phospholipid bilayer (the type of cell membrane possessed by all life on Earth) in liquid water. An analysis of data obtained using the Atacama Large Millimeter / submillimeter Array (ALMA), completed in 2017, confirmed substantial amounts of acrylonitrile in Titan's atmosphere. Later studies questioned whether acrylonitrile would be able to self-assemble into azotozomes.
Hydrogen fluoride (HF), like water, is a polar molecule, and due to its polarity it can dissolve many ionic compounds. At atmospheric pressure, its melting point is 189.15 K (−84.00 °C), and its boiling point is 292.69 K (19.54 °C); the difference between the two is a little more than 100 K. HF also makes hydrogen bonds with its neighbor molecules, as do water and ammonia. It has been considered as a possible solvent for life by scientists such as Peter Sneath and Carl Sagan.
HF is dangerous to the systems of molecules that Earth-life is made of, but certain other organic compounds, such as paraffin waxes, are stable with it. Like water and ammonia, liquid hydrogen fluoride supports an acid–base chemistry. Using a solvent system definition of acidity and basicity, nitric acid functions as a base when it is added to liquid HF.
However, hydrogen fluoride is cosmically rare, unlike water, ammonia, and methane.
Hydrogen sulfide is the closest chemical analog to water, but is less polar and is a weaker inorganic solvent. Hydrogen sulfide is quite plentiful on Jupiter's moon Io and may be in liquid form a short distance below the surface; astrobiologist Dirk Schulze-Makuch has suggested it as a possible solvent for life there. On a planet with hydrogen sulfide oceans, the source of the hydrogen sulfide could come from volcanoes, in which case it could be mixed in with a bit of hydrogen fluoride, which could help dissolve minerals. Hydrogen sulfide life might use a mixture of carbon monoxide and carbon dioxide as their carbon source. They might produce and live on sulfur monoxide, which is analogous to oxygen (O2). Hydrogen sulfide, like hydrogen cyanide and ammonia, suffers from the small temperature range where it is liquid, though that, like that of hydrogen cyanide and ammonia, increases with increasing pressure.
Silicon dioxide, also known as silica and quartz, is very abundant in the universe and has a large temperature range where it is liquid. However, its melting point is 1,600 to 1,725 °C (2,912 to 3,137 °F), so it would be impossible to make organic compounds in that temperature, because all of them would decompose. Silicates are similar to silicon dioxide and some have lower melting points than silica. Feinberg and Shapiro have suggested that molten silicate rock could serve as a liquid medium for organisms with a chemistry based on silicon, oxygen, and other elements such as aluminium.
Other solvents sometimes proposed:
Sulfuric acid in liquid form is strongly polar. It remains liquid at higher temperatures than water, its liquid range being 10 °C to 337 °C at a pressure of 1 atm, although above 300 °C it slowly decomposes. Sulfuric acid is known to be abundant in the clouds of Venus, in the form of aerosol droplets. In a biochemistry that used sulfuric acid as a solvent, the alkene group (C=C), with two carbon atoms joined by a double bond, could function analogously to the carbonyl group (C=O) in water-based biochemistry.
A proposal has been made that life on Mars may exist and be using a mixture of water and hydrogen peroxide as its solvent. A 61.2% (by mass) mix of water and hydrogen peroxide has a freezing point of −56.5 °C and tends to super-cool rather than crystallize. It is also hygroscopic, an advantage in a water-scarce environment.
Supercritical carbon dioxide has been proposed as a candidate for alternative biochemistry due to its ability to selectively dissolve organic compounds and assist the functioning of enzymes and because "super-Earth"- or "super-Venus"-type planets with dense high-pressure atmospheres may be common.
Physicists have noted that, although photosynthesis on Earth generally involves green plants, a variety of other-colored plants could also support photosynthesis, essential for most life on Earth, and that other colors might be preferred in places that receive a different mix of stellar radiation than Earth. These studies indicate that blue plants would be unlikely; however yellow or red plants may be relatively common.
Many Earth plants and animals undergo major biochemical changes during their life cycles as a response to changing environmental conditions, for example, by having a spore or hibernation state that can be sustained for years or even millennia between more active life stages. Thus, it would be biochemically possible to sustain life in environments that are only periodically consistent with life as we know it.
For example, frogs in cold climates can survive for extended periods of time with most of their body water in a frozen state, whereas desert frogs in Australia can become inactive and dehydrate in dry periods, losing up to 75% of their fluids, yet return to life by rapidly rehydrating in wet periods. Either type of frog would appear biochemically inactive (i.e. not living) during dormant periods to anyone lacking a sensitive means of detecting low levels of metabolism.
The genetic code may have evolved during the transition from the RNA world to a protein world. The Alanine World Hypothesis postulates that the evolution of the genetic code (the so-called GC phase) started with only four basic amino acids: alanine, glycine, proline and ornithine (now arginine). The evolution of the genetic code ended with 20 proteinogenic amino acids. From a chemical point of view, most of them are Alanine-derivatives particularly suitable for the construction of α-helices and β-sheets – basic secondary structural elements of modern proteins. Direct evidence of this is an experimental procedure in molecular biology known as alanine scanning.
A hypothetical "Proline World" would create a possible alternative life with the genetic code based on the proline chemical scaffold as the protein backbone. Similarly, a "Glycine World" and "Ornithine World" are also conceivable, but nature has chosen none of them. Evolution of life with Proline, Glycine, or Ornithine as the basic structure for protein-like polymers (foldamers) would lead to parallel biological worlds. They would have morphologically radically different body plans and genetics from the living organisms of the known biosphere.
In 2007, Vadim N. Tsytovich and colleagues proposed that lifelike behaviors could be exhibited by dust particles suspended in a plasma, under conditions that might exist in space. Computer models showed that, when the dust became charged, the particles could self-organize into microscopic helical structures, and the authors offer "a rough sketch of a possible model of...helical grain structure reproduction".
In 2020, Luis A. Anchordoqu and Eugene M. Chudnovsky of the City University of New York hypothesized that cosmic necklace-based life composed of magnetic monopoles connected by cosmic strings could evolve inside stars. This would be achieved by a stretching of cosmic strings due to the star's intense gravity, thus allowing it to take on more complex forms and potentially form structures similar to the RNA and DNA structures found within carbon-based life. As such, it's theoretically possible that such beings could eventually become intelligent and construct a civilization using the power generated by the star's nuclear fusion. Because such use would use up part of the star's energy output, the luminosity would also fall. For this reason, it's thought that such life might exist inside stars observed to be cooling faster or dimmer than current cosmological models predict.
Frank Drake suggested in 1973 that intelligent life could inhabit neutron stars. Physical models in 1973 implied that Drake's creatures would be microscopic. In 1980, Robert L Forward wrote the science fiction novel Dragon's Egg using Drake's suggestion as a thesis.
Scientists who have considered possible alternatives to carbon-water biochemistry include: | [
{
"paragraph_id": 0,
"text": "Hypothetical types of biochemistry are forms of biochemistry agreed to be scientifically viable but not proven to exist at this time. The kinds of living organisms currently known on Earth all use carbon compounds for basic structural and metabolic functions, water as a solvent, and DNA or RNA to define and control their form. If life exists on other planets or moons it may be chemically similar, though it is also possible that there are organisms with quite different chemistries – for instance, involving other classes of carbon compounds, compounds of another element, or another solvent in place of water.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The possibility of life-forms being based on \"alternative\" biochemistries is the topic of an ongoing scientific discussion, informed by what is known about extraterrestrial environments and about the chemical behaviour of various elements and compounds. It is of interest in synthetic biology and is also a common subject in science fiction.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The element silicon has been much discussed as a hypothetical alternative to carbon. Silicon is in the same group as carbon on the periodic table and, like carbon, it is tetravalent. Hypothetical alternatives to water include ammonia, which, like water, is a polar molecule, and cosmically abundant; and non-polar hydrocarbon solvents such as methane and ethane, which are known to exist in liquid form on the surface of Titan.",
"title": ""
},
{
"paragraph_id": 3,
"text": "A shadow biosphere is a hypothetical microbial biosphere of Earth that uses radically different biochemical and molecular processes than currently known life. Although life on Earth is relatively well-studied, the shadow biosphere may still remain unnoticed because the exploration of the microbial world targets primarily the biochemistry of the macro-organisms.",
"title": "Shadow biosphere"
},
{
"paragraph_id": 4,
"text": "Perhaps the least unusual alternative biochemistry would be one with differing chirality of its biomolecules. In known Earth-based life, amino acids are almost universally of the L form and sugars are of the D form. Molecules using D amino acids or L sugars may be possible; molecules of such a chirality, however, would be incompatible with organisms using the opposing chirality molecules. Amino acids whose chirality is opposite to the norm are found on Earth, and these substances are generally thought to result from decay of organisms of normal chirality. However, physicist Paul Davies speculates that some of them might be products of \"anti-chiral\" life.",
"title": "Alternative-chirality biomolecules"
},
{
"paragraph_id": 5,
"text": "It is questionable, however, whether such a biochemistry would be truly alien. Although it would certainly be an alternative stereochemistry, molecules that are overwhelmingly found in one enantiomer throughout the vast majority of organisms can nonetheless often be found in another enantiomer in different (often basal) organisms such as in comparisons between members of Archaea and other domains, making it an open topic whether an alternative stereochemistry is truly novel.",
"title": "Alternative-chirality biomolecules"
},
{
"paragraph_id": 6,
"text": "On Earth, all known living things have a carbon-based structure and system. Scientists have speculated about the pros and cons of using atoms other than carbon to form the molecular structures necessary for life, but no one has proposed a theory employing such atoms to form all the necessary structures. However, as Carl Sagan argued, it is very difficult to be certain whether a statement that applies to all life on Earth will turn out to apply to all life throughout the universe. Sagan used the term \"carbon chauvinism\" for such an assumption. He regarded silicon and germanium as conceivable alternatives to carbon (other plausible elements include but are not limited to palladium and titanium); but, on the other hand, he noted that carbon does seem more chemically versatile and is more abundant in the cosmos). Norman Horowitz devised the experiments to determine whether life might exist on Mars that were carried out by the Viking Lander of 1976, the first U.S. mission to successfully land an uncrewed probe on the surface of Mars. Horowitz argued that the great versatility of the carbon atom makes it the element most likely to provide solutions, even exotic solutions, to the problems of survival on other planets. He considered that there was only a remote possibility that non-carbon life forms could exist with genetic information systems capable of self-replication and the ability to evolve and adapt.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 7,
"text": "The silicon atom has been much discussed as the basis for an alternative biochemical system, because silicon has many chemical properties similar to those of carbon and is in the same group of the periodic table, the carbon group. Like carbon, silicon can create molecules that are sufficiently large to carry biological information.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 8,
"text": "However, silicon has several drawbacks as an alternative to carbon. Silicon, unlike carbon, lacks the ability to form chemical bonds with diverse types of atoms as is necessary for the chemical versatility required for metabolism, and yet this precise inability is what makes silicon less susceptible to bond with all sorts of impurities from which carbon, in comparison, is not shielded. Elements creating organic functional groups with carbon include hydrogen, oxygen, nitrogen, phosphorus, sulfur, and metals such as iron, magnesium, and zinc. Silicon, on the other hand, interacts with very few other types of atoms. Moreover, where it does interact with other atoms, silicon creates molecules that have been described as \"monotonous compared with the combinatorial universe of organic macromolecules\". This is because silicon atoms are much bigger, having a larger mass and atomic radius, and so have difficulty forming double bonds (the double-bonded carbon is part of the carbonyl group, a fundamental motif of carbon-based bio-organic chemistry).",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 9,
"text": "Silanes, which are chemical compounds of hydrogen and silicon that are analogous to the alkane hydrocarbons, are highly reactive with water, and long-chain silanes spontaneously decompose. Molecules incorporating polymers of alternating silicon and oxygen atoms instead of direct bonds between silicon, known collectively as silicones, are much more stable. It has been suggested that silicone-based chemicals would be more stable than equivalent hydrocarbons in a sulfuric-acid-rich environment, as is found in some extraterrestrial locations.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 10,
"text": "Of the varieties of molecules identified in the interstellar medium as of 1998, 84 are based on carbon, while only 8 are based on silicon. Moreover, of those 8 compounds, 4 also include carbon within them. The cosmic abundance of carbon to silicon is roughly 10 to 1. This may suggest a greater variety of complex carbon compounds throughout the cosmos, providing less of a foundation on which to build silicon-based biologies, at least under the conditions prevalent on the surface of planets. Also, even though Earth and other terrestrial planets are exceptionally silicon-rich and carbon-poor (the relative abundance of silicon to carbon in Earth's crust is roughly 925:1), terrestrial life is carbon-based. The fact that carbon is used instead of silicon may be evidence that silicon is poorly suited for biochemistry on Earth-like planets. Reasons for this may be that silicon is less versatile than carbon in forming compounds, that the compounds formed by silicon are unstable, and that it blocks the flow of heat.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 11,
"text": "Even so, biogenic silica is used by some Earth life, such as the silicate skeletal structure of diatoms. According to the clay hypothesis of A. G. Cairns-Smith, silicate minerals in water played a crucial role in abiogenesis: they replicated their crystal structures, interacted with carbon compounds, and were the precursors of carbon-based life.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 12,
"text": "Although not observed in nature, carbon–silicon bonds have been added to biochemistry by using directed evolution (artificial selection). A heme containing cytochrome c protein from Rhodothermus marinus has been engineered using directed evolution to catalyze the formation of new carbon–silicon bonds between hydrosilanes and diazo compounds.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 13,
"text": "Silicon compounds may possibly be biologically useful under temperatures or pressures different from the surface of a terrestrial planet, either in conjunction with or in a role less directly analogous to carbon. Polysilanols, the silicon compounds corresponding to sugars, are soluble in liquid nitrogen, suggesting that they could play a role in very-low-temperature biochemistry.",
"title": "Non-carbon-based biochemistries"
},
{
"paragraph_id": 14,
"text": "Arsenic, which is chemically similar to phosphorus, while poisonous for most life forms on Earth, is incorporated into the biochemistry of some organisms. Some marine algae incorporate arsenic into complex organic molecules such as arsenosugars and arsenobetaines. Fungi and bacteria can produce volatile methylated arsenic compounds. Arsenate reduction and arsenite oxidation have been observed in microbes (Chrysiogenes arsenatis). Additionally, some prokaryotes can use arsenate as a terminal electron acceptor during anaerobic growth and some can utilize arsenite as an electron donor to generate energy.",
"title": "Arsenic as an alternative to phosphorus"
},
{
"paragraph_id": 15,
"text": "It has been speculated that the earliest life forms on Earth may have used arsenic biochemistry in place of phosphorus in the structure of their DNA. A common objection to this scenario is that arsenate esters are so much less stable to hydrolysis than corresponding phosphate esters that arsenic is poorly suited for this function.",
"title": "Arsenic as an alternative to phosphorus"
},
{
"paragraph_id": 16,
"text": "The authors of a 2010 geomicrobiology study, supported in part by NASA, have postulated that a bacterium, named GFAJ-1, collected in the sediments of Mono Lake in eastern California, can employ such 'arsenic DNA' when cultured without phosphorus. They proposed that the bacterium may employ high levels of poly-β-hydroxybutyrate or other means to reduce the effective concentration of water and stabilize its arsenate esters. This claim was heavily criticized almost immediately after publication for the perceived lack of appropriate controls. Science writer Carl Zimmer contacted several scientists for an assessment: \"I reached out to a dozen experts ... Almost unanimously, they think the NASA scientists have failed to make their case\". Other authors were unable to reproduce their results and showed that the study had issues with phosphate contamination, suggesting that the low amounts present could sustain extremophile lifeforms. Alternatively, it was suggested that GFAJ-1 cells grow by recycling phosphate from degraded ribosomes, rather than by replacing it with arsenate.",
"title": "Arsenic as an alternative to phosphorus"
},
{
"paragraph_id": 17,
"text": "In addition to carbon compounds, all currently known terrestrial life also requires water as a solvent. This has led to discussions about whether water is the only liquid capable of filling that role. The idea that an extraterrestrial life-form might be based on a solvent other than water has been taken seriously in recent scientific literature by the biochemist Steven Benner, and by the astrobiological committee chaired by John A. Baross. Solvents discussed by the Baross committee include ammonia, sulfuric acid, formamide, hydrocarbons, and (at temperatures much lower than Earth's) liquid nitrogen, or hydrogen in the form of a supercritical fluid.",
"title": "Non-water solvents"
},
{
"paragraph_id": 18,
"text": "Carl Sagan once described himself as both a carbon chauvinist and a water chauvinist; however, on another occasion he said that he was a carbon chauvinist but \"not that much of a water chauvinist\". He speculated on hydrocarbons, hydrofluoric acid, and ammonia as possible alternatives to water.",
"title": "Non-water solvents"
},
{
"paragraph_id": 19,
"text": "Some of the properties of water that are important for life processes include:",
"title": "Non-water solvents"
},
{
"paragraph_id": 20,
"text": "Water as a compound is cosmically abundant, although much of it is in the form of vapour or ice. Subsurface liquid water is considered likely or possible on several of the outer moons: Enceladus (where geysers have been observed), Europa, Titan, and Ganymede. Earth and Titan are the only worlds currently known to have stable bodies of liquid on their surfaces.",
"title": "Non-water solvents"
},
{
"paragraph_id": 21,
"text": "Not all properties of water are necessarily advantageous for life, however. For instance, water ice has a high albedo, meaning that it reflects a significant quantity of light and heat from the Sun. During ice ages, as reflective ice builds up over the surface of the water, the effects of global cooling are increased.",
"title": "Non-water solvents"
},
{
"paragraph_id": 22,
"text": "There are some properties that make certain compounds and elements much more favorable than others as solvents in a successful biosphere. The solvent must be able to exist in liquid equilibrium over a range of temperatures the planetary object would normally encounter. Because boiling points vary with the pressure, the question tends not to be does the prospective solvent remain liquid, but at what pressure. For example, hydrogen cyanide has a narrow liquid-phase temperature range at 1 atmosphere, but in an atmosphere with the pressure of Venus, with 92 bars (91 atm) of pressure, it can indeed exist in liquid form over a wide temperature range.",
"title": "Non-water solvents"
},
{
"paragraph_id": 23,
"text": "The ammonia molecule (NH3), like the water molecule, is abundant in the universe, being a compound of hydrogen (the simplest and most common element) with another very common element, nitrogen. The possible role of liquid ammonia as an alternative solvent for life is an idea that goes back at least to 1954, when J. B. S. Haldane raised the topic at a symposium about life's origin.",
"title": "Non-water solvents"
},
{
"paragraph_id": 24,
"text": "Numerous chemical reactions are possible in an ammonia solution, and liquid ammonia has chemical similarities with water. Ammonia can dissolve most organic molecules at least as well as water does and, in addition, it is capable of dissolving many elemental metals. Haldane made the point that various common water-related organic compounds have ammonia-related analogs; for instance the ammonia-related amine group (−NH2) is analogous to the water-related hydroxyl group (−OH).",
"title": "Non-water solvents"
},
{
"paragraph_id": 25,
"text": "Ammonia, like water, can either accept or donate an H ion. When ammonia accepts an H, it forms the ammonium cation (NH4), analogous to hydronium (H3O). When it donates an H ion, it forms the amide anion (NH2), analogous to the hydroxide anion (OH). Compared to water, however, ammonia is more inclined to accept an H ion, and less inclined to donate one; it is a stronger nucleophile. Ammonia added to water functions as Arrhenius base: it increases the concentration of the anion hydroxide. Conversely, using a solvent system definition of acidity and basicity, water added to liquid ammonia functions as an acid, because it increases the concentration of the cation ammonium. The carbonyl group (C=O), which is much used in terrestrial biochemistry, would not be stable in ammonia solution, but the analogous imine group (C=NH) could be used instead.",
"title": "Non-water solvents"
},
{
"paragraph_id": 26,
"text": "However, ammonia has some problems as a basis for life. The hydrogen bonds between ammonia molecules are weaker than those in water, causing ammonia's heat of vaporization to be half that of water, its surface tension to be a third, and reducing its ability to concentrate non-polar molecules through a hydrophobic effect. Gerald Feinberg and Robert Shapiro have questioned whether ammonia could hold prebiotic molecules together well enough to allow the emergence of a self-reproducing system. Ammonia is also flammable in oxygen and could not exist sustainably in an environment suitable for aerobic metabolism.",
"title": "Non-water solvents"
},
{
"paragraph_id": 27,
"text": "A biosphere based on ammonia would likely exist at temperatures or air pressures that are extremely unusual in relation to life on Earth. Life on Earth usually exists within the melting point and boiling point of water, at a pressure designated as normal pressure, and between 0 and 100 °C (273 and 373 K). When also held to normal pressure, ammonia's melting and boiling points are −78 °C (195 K) and −33 °C (240 K) respectively. Because chemical reactions generally proceed more slowly at lower temperatures, ammonia-based life existing in this set of conditions might metabolize more slowly and evolve more slowly than life on Earth. On the other hand, lower temperatures could also enable living systems to use chemical species that would be too unstable at Earth temperatures to be useful.",
"title": "Non-water solvents"
},
{
"paragraph_id": 28,
"text": "Another set of conditions where ammonia is liquid at Earth-like temperatures would involve it being at a much higher pressure. For example, at 60 atm ammonia melts at −77 °C (196 K) and boils at 98 °C (371 K).",
"title": "Non-water solvents"
},
{
"paragraph_id": 29,
"text": "Ammonia and ammonia–water mixtures remain liquid at temperatures far below the freezing point of pure water, so such biochemistries might be well suited to planets and moons orbiting outside the water-based habitability zone. Such conditions could exist, for example, under the surface of Saturn's largest moon Titan.",
"title": "Non-water solvents"
},
{
"paragraph_id": 30,
"text": "Methane (CH4) is a simple hydrocarbon: that is, a compound of two of the most common elements in the cosmos: hydrogen and carbon. It has a cosmic abundance comparable with ammonia. Hydrocarbons could act as a solvent over a wide range of temperatures, but would lack polarity. Isaac Asimov, the biochemist and science fiction writer, suggested in 1981 that poly-lipids could form a substitute for proteins in a non-polar solvent such as methane. Lakes composed of a mixture of hydrocarbons, including methane and ethane, have been detected on the surface of Titan by the Cassini spacecraft.",
"title": "Non-water solvents"
},
{
"paragraph_id": 31,
"text": "There is debate about the effectiveness of methane and other hydrocarbons as a solvent for life compared to water or ammonia. Water is a stronger solvent than the hydrocarbons, enabling easier transport of substances in a cell. However, water is also more chemically reactive and can break down large organic molecules through hydrolysis. A life-form whose solvent was a hydrocarbon would not face the threat of its biomolecules being destroyed in this way. Also, the water molecule's tendency to form strong hydrogen bonds can interfere with internal hydrogen bonding in complex organic molecules. Life with a hydrocarbon solvent could make more use of hydrogen bonds within its biomolecules. Moreover, the strength of hydrogen bonds within biomolecules would be appropriate to a low-temperature biochemistry.",
"title": "Non-water solvents"
},
{
"paragraph_id": 32,
"text": "Astrobiologist Chris McKay has argued, on thermodynamic grounds, that if life does exist on Titan's surface, using hydrocarbons as a solvent, it is likely also to use the more complex hydrocarbons as an energy source by reacting them with hydrogen, reducing ethane and acetylene to methane. Possible evidence for this form of life on Titan was identified in 2010 by Darrell Strobel of Johns Hopkins University; a greater abundance of molecular hydrogen in the upper atmospheric layers of Titan compared to the lower layers, arguing for a downward diffusion at a rate of roughly 10 molecules per second and disappearance of hydrogen near Titan's surface. As Strobel noted, his findings were in line with the effects Chris McKay had predicted if methanogenic life-forms were present. The same year, another study showed low levels of acetylene on Titan's surface, which were interpreted by Chris McKay as consistent with the hypothesis of organisms reducing acetylene to methane. While restating the biological hypothesis, McKay cautioned that other explanations for the hydrogen and acetylene findings are to be considered more likely: the possibilities of yet unidentified physical or chemical processes (e.g. a non-living surface catalyst enabling acetylene to react with hydrogen), or flaws in the current models of material flow. He noted that even a non-biological catalyst effective at 95 K would in itself be a startling discovery.",
"title": "Non-water solvents"
},
{
"paragraph_id": 33,
"text": "A hypothetical cell membrane termed an azotosome, capable of functioning in liquid methane in Titan conditions was computer-modeled in an article published in February 2015. Composed of acrylonitrile, a small molecule containing carbon, hydrogen, and nitrogen, it is predicted to have stability and flexibility in liquid methane comparable to that of a phospholipid bilayer (the type of cell membrane possessed by all life on Earth) in liquid water. An analysis of data obtained using the Atacama Large Millimeter / submillimeter Array (ALMA), completed in 2017, confirmed substantial amounts of acrylonitrile in Titan's atmosphere. Later studies questioned whether acrylonitrile would be able to self-assemble into azotozomes.",
"title": "Non-water solvents"
},
{
"paragraph_id": 34,
"text": "Hydrogen fluoride (HF), like water, is a polar molecule, and due to its polarity it can dissolve many ionic compounds. At atmospheric pressure, its melting point is 189.15 K (−84.00 °C), and its boiling point is 292.69 K (19.54 °C); the difference between the two is a little more than 100 K. HF also makes hydrogen bonds with its neighbor molecules, as do water and ammonia. It has been considered as a possible solvent for life by scientists such as Peter Sneath and Carl Sagan.",
"title": "Non-water solvents"
},
{
"paragraph_id": 35,
"text": "HF is dangerous to the systems of molecules that Earth-life is made of, but certain other organic compounds, such as paraffin waxes, are stable with it. Like water and ammonia, liquid hydrogen fluoride supports an acid–base chemistry. Using a solvent system definition of acidity and basicity, nitric acid functions as a base when it is added to liquid HF.",
"title": "Non-water solvents"
},
{
"paragraph_id": 36,
"text": "However, hydrogen fluoride is cosmically rare, unlike water, ammonia, and methane.",
"title": "Non-water solvents"
},
{
"paragraph_id": 37,
"text": "Hydrogen sulfide is the closest chemical analog to water, but is less polar and is a weaker inorganic solvent. Hydrogen sulfide is quite plentiful on Jupiter's moon Io and may be in liquid form a short distance below the surface; astrobiologist Dirk Schulze-Makuch has suggested it as a possible solvent for life there. On a planet with hydrogen sulfide oceans, the source of the hydrogen sulfide could come from volcanoes, in which case it could be mixed in with a bit of hydrogen fluoride, which could help dissolve minerals. Hydrogen sulfide life might use a mixture of carbon monoxide and carbon dioxide as their carbon source. They might produce and live on sulfur monoxide, which is analogous to oxygen (O2). Hydrogen sulfide, like hydrogen cyanide and ammonia, suffers from the small temperature range where it is liquid, though that, like that of hydrogen cyanide and ammonia, increases with increasing pressure.",
"title": "Non-water solvents"
},
{
"paragraph_id": 38,
"text": "Silicon dioxide, also known as silica and quartz, is very abundant in the universe and has a large temperature range where it is liquid. However, its melting point is 1,600 to 1,725 °C (2,912 to 3,137 °F), so it would be impossible to make organic compounds in that temperature, because all of them would decompose. Silicates are similar to silicon dioxide and some have lower melting points than silica. Feinberg and Shapiro have suggested that molten silicate rock could serve as a liquid medium for organisms with a chemistry based on silicon, oxygen, and other elements such as aluminium.",
"title": "Non-water solvents"
},
{
"paragraph_id": 39,
"text": "Other solvents sometimes proposed:",
"title": "Non-water solvents"
},
{
"paragraph_id": 40,
"text": "Sulfuric acid in liquid form is strongly polar. It remains liquid at higher temperatures than water, its liquid range being 10 °C to 337 °C at a pressure of 1 atm, although above 300 °C it slowly decomposes. Sulfuric acid is known to be abundant in the clouds of Venus, in the form of aerosol droplets. In a biochemistry that used sulfuric acid as a solvent, the alkene group (C=C), with two carbon atoms joined by a double bond, could function analogously to the carbonyl group (C=O) in water-based biochemistry.",
"title": "Non-water solvents"
},
{
"paragraph_id": 41,
"text": "A proposal has been made that life on Mars may exist and be using a mixture of water and hydrogen peroxide as its solvent. A 61.2% (by mass) mix of water and hydrogen peroxide has a freezing point of −56.5 °C and tends to super-cool rather than crystallize. It is also hygroscopic, an advantage in a water-scarce environment.",
"title": "Non-water solvents"
},
{
"paragraph_id": 42,
"text": "Supercritical carbon dioxide has been proposed as a candidate for alternative biochemistry due to its ability to selectively dissolve organic compounds and assist the functioning of enzymes and because \"super-Earth\"- or \"super-Venus\"-type planets with dense high-pressure atmospheres may be common.",
"title": "Non-water solvents"
},
{
"paragraph_id": 43,
"text": "Physicists have noted that, although photosynthesis on Earth generally involves green plants, a variety of other-colored plants could also support photosynthesis, essential for most life on Earth, and that other colors might be preferred in places that receive a different mix of stellar radiation than Earth. These studies indicate that blue plants would be unlikely; however yellow or red plants may be relatively common.",
"title": "Other speculations"
},
{
"paragraph_id": 44,
"text": "Many Earth plants and animals undergo major biochemical changes during their life cycles as a response to changing environmental conditions, for example, by having a spore or hibernation state that can be sustained for years or even millennia between more active life stages. Thus, it would be biochemically possible to sustain life in environments that are only periodically consistent with life as we know it.",
"title": "Other speculations"
},
{
"paragraph_id": 45,
"text": "For example, frogs in cold climates can survive for extended periods of time with most of their body water in a frozen state, whereas desert frogs in Australia can become inactive and dehydrate in dry periods, losing up to 75% of their fluids, yet return to life by rapidly rehydrating in wet periods. Either type of frog would appear biochemically inactive (i.e. not living) during dormant periods to anyone lacking a sensitive means of detecting low levels of metabolism.",
"title": "Other speculations"
},
{
"paragraph_id": 46,
"text": "The genetic code may have evolved during the transition from the RNA world to a protein world. The Alanine World Hypothesis postulates that the evolution of the genetic code (the so-called GC phase) started with only four basic amino acids: alanine, glycine, proline and ornithine (now arginine). The evolution of the genetic code ended with 20 proteinogenic amino acids. From a chemical point of view, most of them are Alanine-derivatives particularly suitable for the construction of α-helices and β-sheets – basic secondary structural elements of modern proteins. Direct evidence of this is an experimental procedure in molecular biology known as alanine scanning.",
"title": "Other speculations"
},
{
"paragraph_id": 47,
"text": "A hypothetical \"Proline World\" would create a possible alternative life with the genetic code based on the proline chemical scaffold as the protein backbone. Similarly, a \"Glycine World\" and \"Ornithine World\" are also conceivable, but nature has chosen none of them. Evolution of life with Proline, Glycine, or Ornithine as the basic structure for protein-like polymers (foldamers) would lead to parallel biological worlds. They would have morphologically radically different body plans and genetics from the living organisms of the known biosphere.",
"title": "Other speculations"
},
{
"paragraph_id": 48,
"text": "In 2007, Vadim N. Tsytovich and colleagues proposed that lifelike behaviors could be exhibited by dust particles suspended in a plasma, under conditions that might exist in space. Computer models showed that, when the dust became charged, the particles could self-organize into microscopic helical structures, and the authors offer \"a rough sketch of a possible model of...helical grain structure reproduction\".",
"title": "Nonplanetary life"
},
{
"paragraph_id": 49,
"text": "In 2020, Luis A. Anchordoqu and Eugene M. Chudnovsky of the City University of New York hypothesized that cosmic necklace-based life composed of magnetic monopoles connected by cosmic strings could evolve inside stars. This would be achieved by a stretching of cosmic strings due to the star's intense gravity, thus allowing it to take on more complex forms and potentially form structures similar to the RNA and DNA structures found within carbon-based life. As such, it's theoretically possible that such beings could eventually become intelligent and construct a civilization using the power generated by the star's nuclear fusion. Because such use would use up part of the star's energy output, the luminosity would also fall. For this reason, it's thought that such life might exist inside stars observed to be cooling faster or dimmer than current cosmological models predict.",
"title": "Nonplanetary life"
},
{
"paragraph_id": 50,
"text": "Frank Drake suggested in 1973 that intelligent life could inhabit neutron stars. Physical models in 1973 implied that Drake's creatures would be microscopic. In 1980, Robert L Forward wrote the science fiction novel Dragon's Egg using Drake's suggestion as a thesis.",
"title": "Nonplanetary life"
},
{
"paragraph_id": 51,
"text": "Scientists who have considered possible alternatives to carbon-water biochemistry include:",
"title": "Scientists who have published on this topic"
}
] | Hypothetical types of biochemistry are forms of biochemistry agreed to be scientifically viable but not proven to exist at this time. The kinds of living organisms currently known on Earth all use carbon compounds for basic structural and metabolic functions, water as a solvent, and DNA or RNA to define and control their form. If life exists on other planets or moons it may be chemically similar, though it is also possible that there are organisms with quite different chemistries – for instance, involving other classes of carbon compounds, compounds of another element, or another solvent in place of water. The possibility of life-forms being based on "alternative" biochemistries is the topic of an ongoing scientific discussion, informed by what is known about extraterrestrial environments and about the chemical behaviour of various elements and compounds. It is of interest in synthetic biology and is also a common subject in science fiction. The element silicon has been much discussed as a hypothetical alternative to carbon. Silicon is in the same group as carbon on the periodic table and, like carbon, it is tetravalent. Hypothetical alternatives to water include ammonia, which, like water, is a polar molecule, and cosmically abundant; and non-polar hydrocarbon solvents such as methane and ethane, which are known to exist in liquid form on the surface of Titan. | 2001-12-03T17:19:49Z | 2023-12-06T16:01:35Z | [
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] | https://en.wikipedia.org/wiki/Hypothetical_types_of_biochemistry |
7,322 | Creation myth | A creation myth or cosmogonic myth is a type of cosmogony, a symbolic narrative of how the world began and how people first came to inhabit it. While in popular usage the term myth often refers to false or fanciful stories, members of cultures often ascribe varying degrees of truth to their creation myths. In the society in which it is told, a creation myth is usually regarded as conveying profound truths – metaphorically, symbolically, historically, or literally. They are commonly, although not always, considered cosmogonical myths – that is, they describe the ordering of the cosmos from a state of chaos or amorphousness.
Creation myths often share several features. They often are considered sacred accounts and can be found in nearly all known religious traditions. They are all stories with a plot and characters who are either deities, human-like figures, or animals, who often speak and transform easily. They are often set in a dim and nonspecific past that historian of religion Mircea Eliade termed in illo tempore ('at that time'). Creation myths address questions deeply meaningful to the society that shares them, revealing their central worldview and the framework for the self-identity of the culture and individual in a universal context.
Creation myths develop in oral traditions and therefore typically have multiple versions; found throughout human culture, they are the most common form of myth.
Creation myth definitions from modern references:
Religion professor Mircea Eliade defined the word myth in terms of creation:
Myth narrates a sacred history; it relates an event that took place in primordial Time, the fabled time of the "beginnings." In other words, myth tells how, through the deeds of Supernatural Beings, a reality came into existence, be it the whole of reality, the Cosmos, or only a fragment of reality – an island, a species of plant, a particular kind of human behavior, an institution.
Creation myths have been around since ancient history and have served important societal roles. Over 100 "distinct" ones have been discovered. All creation myths are in one sense etiological because they attempt to explain how the world formed and where humanity came from. Myths attempt to explain the unknown and sometimes teach a lesson.
Ethnologists and anthropologists who study origin myths say that in the modern context theologians try to discern humanity's meaning from revealed truths and scientists investigate cosmology with the tools of empiricism and rationality, but creation myths define human reality in very different terms. In the past, historians of religion and other students of myth thought of such stories as forms of primitive or early-stage science or religion and analyzed them in a literal or logical sense. Today, however, they are seen as symbolic narratives which must be understood in terms of their own cultural context. Charles Long writes: "The beings referred to in the myth – gods, animals, plants – are forms of power grasped existentially. The myths should not be understood as attempts to work out a rational explanation of deity."
While creation myths are not literal explications, they do serve to define an orientation of humanity in the world in terms of a birth story. They provide the basis of a worldview that reaffirms and guides how people relate to the natural world, to any assumed spiritual world, and to each other. A creation myth acts as a cornerstone for distinguishing primary reality from relative reality, the origin and nature of being from non-being. In this sense cosmogonic myths serve as a philosophy of life – but one expressed and conveyed through symbol rather than through systematic reason. And in this sense they go beyond etiological myths (which explain specific features in religious rites, natural phenomena, or cultural life). Creation myths also help to orient human beings in the world, giving them a sense of their place in the world and the regard that they must have for humans and nature.
Historian David Christian has summarised issues common to multiple creation myths:
How did everything begin? This is the first question faced by any creation myth and ... answering it remains tricky. ... Each beginning seems to presuppose an earlier beginning. ... Instead of meeting a single starting point, we encounter an infinity of them, each of which poses the same problem. ... There are no entirely satisfactory solutions to this dilemma. What we have to find is not a solution but some way of dealing with the mystery .... And we have to do so using words. The words we reach for, from God to gravity, are inadequate to the task. So we have to use language poetically or symbolically; and such language, whether used by a scientist, a poet, or a shaman, can easily be misunderstood.
Mythologists have applied various schemes to classify creation myths found throughout human cultures. Eliade and his colleague Charles Long developed a classification based on some common motifs that reappear in stories the world over. The classification identifies five basic types:
Marta Weigle further developed and refined this typology to highlight nine themes, adding elements such as deus faber, a creation crafted by a deity, creation from the work of two creators working together or against each other, creation from sacrifice and creation from division/conjugation, accretion/conjunction, or secretion.
An alternative system based on six recurring narrative themes was designed by Raymond Van Over:
The myth that God created the world out of nothing – ex nihilo – is central today to Judaism, Christianity, and Islam, and the medieval Jewish philosopher Maimonides felt it was the only concept that the three religions shared. Nonetheless, the concept is not found in the entire Hebrew Bible. The authors of Genesis 1 were concerned not with the origins of matter (the material which God formed into the habitable cosmos), but with assigning roles so that the cosmos should function. In the early 2nd century CE, early Christian scholars were beginning to see a tension between the idea of world-formation and the omnipotence of God, and by the beginning of the 3rd century creation ex nihilo had become a fundamental tenet of Christian theology.
Ex nihilo creation is found in creation stories from ancient Egypt, the Rig Veda, and many animistic cultures in Africa, Asia, Oceania, and North America. In most of these stories, the world is brought into being by the speech, dream, breath, or pure thought of a creator but creation ex nihilo may also take place through a creator's bodily secretions.
The literal translation of the phrase ex nihilo is "from nothing" but in many creation myths the line is blurred whether the creative act would be better classified as a creation ex nihilo or creation from chaos. In ex nihilo creation myths, the potential and the substance of creation springs from within the creator. Such a creator may or may not be existing in physical surroundings such as darkness or water, but does not create the world from them, whereas in creation from chaos the substance used for creation is pre-existing within the unformed void.
In creation from chaos myths, there is nothing initially but a formless, shapeless expanse. In these stories the word "chaos" means "disorder", and this formless expanse, which is also sometimes called a void or an abyss, contains the material with which the created world will be made. Chaos may be described as having the consistency of vapor or water, dimensionless, and sometimes salty or muddy. These myths associate chaos with evil and oblivion, in contrast to "order" (cosmos) which is the good. The act of creation is the bringing of order from disorder, and in many of these cultures it is believed that at some point the forces preserving order and form will weaken and the world will once again be engulfed into the abyss. One example is the Genesis creation narrative from the first chapter of the Book of Genesis.
There are two types of world parent myths, both describing a separation or splitting of a primeval entity, the world parent or parents. One form describes the primeval state as an eternal union of two parents, and the creation takes place when the two are pulled apart. The two parents are commonly identified as Sky (usually male) and Earth (usually female), who were so tightly bound to each other in the primeval state that no offspring could emerge. These myths often depict creation as the result of a sexual union and serve as genealogical record of the deities born from it.
In the second form of world parent myths, creation itself springs from dismembered parts of the body of the primeval being. Often, in these stories, the limbs, hair, blood, bones, or organs of the primeval being are somehow severed or sacrificed to transform into sky, earth, animal or plant life, and other worldly features. These myths tend to emphasize creative forces as animistic in nature rather than sexual, and depict the sacred as the elemental and integral component of the natural world. One example of this is the Norse creation myth described in Völuspá, the first poem of Gylfaginning.
In emergence myths, humanity emerges from another world into the one they currently inhabit. The previous world is often considered the womb of the earth mother, and the process of emergence is likened to the act of giving birth. The role of midwife is usually played by a female deity, like the spider woman of several mythologies of Indigenous peoples in the Americas. Male characters rarely figure into these stories, and scholars often consider them in counterpoint to male-oriented creation myths, like those of the ex nihilo variety.
Emergence myths commonly describe the creation of people and/or supernatural beings as a staged ascent or metamorphosis from nascent forms through a series of subterranean worlds to arrive at their current place and form. Often the passage from one world or stage to the next is impelled by inner forces, a process of germination or gestation from earlier, embryonic forms. The genre is most commonly found in Native American cultures where the myths frequently link the final emergence of people from a hole opening to the underworld to stories about their subsequent migrations and eventual settlement in their current homelands.
The earth-diver is a common character in various traditional creation myths. In these stories a supreme being usually sends an animal (most often a type of bird, but also crustaceans, insects, and fish in some narratives) into the primal waters to find bits of sand or mud with which to build habitable land. Some scholars interpret these myths psychologically while others interpret them cosmogonically. In both cases emphasis is placed on beginnings emanating from the depths.
According to Gudmund Hatt and Tristram P. Coffin, Earth-diver myths are common in Native American folklore, among the following populations: Shoshone, Meskwaki, Blackfoot, Chipewyan, Newettee, Yokuts of California, Mandan, Hidatsa, Cheyenne, Arapaho, Ojibwe, Yuchi, and Cherokee.
American anthropologist Gladys Reichard located the distribution of the motif across "all parts of North America", save for "the extreme north, northeast, and southwest". In a 1977 study, anthropologist Victor Barnouw surmised that the earth-diver motif appeared in "hunting-gathering societies", mainly among northerly groups such as the Hare, Dogrib, Kaska, Beaver, Carrier, Chipewyan, Sarsi, Cree, and Montagnais.
Similar tales are also found among the Chukchi and Yukaghir, the Tatars, and many Finnic traditions, as well as among the Buryat and the Samoyed. In addition, the earth-diver motif also exists in narratives from Eastern Europe, namely Romani, Romanian, Slavic (namely, Bulgarian, Polish, Ukrainian, and Belarusian), and Lithuanian mythological traditions.
The pattern of distribution of these stories suggest they have a common origin in the eastern Asiatic coastal region, spreading as peoples migrated west into Siberia and east to the North American continent. However, there are examples of this mytheme found well outside of this boreal distribution pattern, for example the West African Yoruba creation myth of Ọbatala and Oduduwa.
Characteristic of many Native American myths, earth-diver creation stories begin as beings and potential forms linger asleep or suspended in the primordial realm. The earth-diver is among the first of them to awaken and lay the necessary groundwork by building suitable lands where the coming creation will be able to live. In many cases, these stories will describe a series of failed attempts to make land before the solution is found.
Among the indigenous peoples of the Americas, the earth-diver cosmogony is attested in Iroquois mythology: a female sky deity falls from the heavens, and certain animals, the beaver, the otter, the duck, and the muskrat dive in the waters to fetch mud to construct an island.
In a similar story from the Seneca, people lived in a sky realm. One day, the chief's daughter was afflicted with a mysterious illness, and the only cure recommended for her (revealed in a dream) was to lie beside a tree and to have it be dug up. The people do so, but a man complains that the tree was their livelihood, and kicks the girl through the hole. She ends up falling from the sky to a world of only water, but is rescued by waterfowl. A turtle offers to bear her on its shell, but asked where would be a definitive dwelling place for her. They decide to create land, and the toad dives into the depths of the primal sea to get pieces of soil. The toad puts it on the turtle's back, which grows larger with every deposit of soil.
In another version from the Wyandot, the Wyandot lived in heaven. The daughter of the Big Chief (or Mighty Ruler) was sick, so the medicine man recommends that they dig up the wild apple tree that stands next to the Lodge of the Mighty Ruler, because the remedy is to be found on its roots. However, as the tree has been dug out, the ground begins to sink away, and the treetops catch and carry down the sick daughter with it. As the girl falls from the skies, two swans rescue her on their backs. The birds decide to summon all the Swimmers and the Water Tribes. Many volunteer to dive into the Great Water to fetch bits of earth from the bottom of the sea, but only the toad (female, in the story) is the one successful.
On the Earth-diver motif: | [
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"text": "A creation myth or cosmogonic myth is a type of cosmogony, a symbolic narrative of how the world began and how people first came to inhabit it. While in popular usage the term myth often refers to false or fanciful stories, members of cultures often ascribe varying degrees of truth to their creation myths. In the society in which it is told, a creation myth is usually regarded as conveying profound truths – metaphorically, symbolically, historically, or literally. They are commonly, although not always, considered cosmogonical myths – that is, they describe the ordering of the cosmos from a state of chaos or amorphousness.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Creation myths often share several features. They often are considered sacred accounts and can be found in nearly all known religious traditions. They are all stories with a plot and characters who are either deities, human-like figures, or animals, who often speak and transform easily. They are often set in a dim and nonspecific past that historian of religion Mircea Eliade termed in illo tempore ('at that time'). Creation myths address questions deeply meaningful to the society that shares them, revealing their central worldview and the framework for the self-identity of the culture and individual in a universal context.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Creation myths develop in oral traditions and therefore typically have multiple versions; found throughout human culture, they are the most common form of myth.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Creation myth definitions from modern references:",
"title": "Definitions"
},
{
"paragraph_id": 4,
"text": "Religion professor Mircea Eliade defined the word myth in terms of creation:",
"title": "Definitions"
},
{
"paragraph_id": 5,
"text": "Myth narrates a sacred history; it relates an event that took place in primordial Time, the fabled time of the \"beginnings.\" In other words, myth tells how, through the deeds of Supernatural Beings, a reality came into existence, be it the whole of reality, the Cosmos, or only a fragment of reality – an island, a species of plant, a particular kind of human behavior, an institution.",
"title": "Definitions"
},
{
"paragraph_id": 6,
"text": "Creation myths have been around since ancient history and have served important societal roles. Over 100 \"distinct\" ones have been discovered. All creation myths are in one sense etiological because they attempt to explain how the world formed and where humanity came from. Myths attempt to explain the unknown and sometimes teach a lesson.",
"title": "Meaning and function"
},
{
"paragraph_id": 7,
"text": "Ethnologists and anthropologists who study origin myths say that in the modern context theologians try to discern humanity's meaning from revealed truths and scientists investigate cosmology with the tools of empiricism and rationality, but creation myths define human reality in very different terms. In the past, historians of religion and other students of myth thought of such stories as forms of primitive or early-stage science or religion and analyzed them in a literal or logical sense. Today, however, they are seen as symbolic narratives which must be understood in terms of their own cultural context. Charles Long writes: \"The beings referred to in the myth – gods, animals, plants – are forms of power grasped existentially. The myths should not be understood as attempts to work out a rational explanation of deity.\"",
"title": "Meaning and function"
},
{
"paragraph_id": 8,
"text": "While creation myths are not literal explications, they do serve to define an orientation of humanity in the world in terms of a birth story. They provide the basis of a worldview that reaffirms and guides how people relate to the natural world, to any assumed spiritual world, and to each other. A creation myth acts as a cornerstone for distinguishing primary reality from relative reality, the origin and nature of being from non-being. In this sense cosmogonic myths serve as a philosophy of life – but one expressed and conveyed through symbol rather than through systematic reason. And in this sense they go beyond etiological myths (which explain specific features in religious rites, natural phenomena, or cultural life). Creation myths also help to orient human beings in the world, giving them a sense of their place in the world and the regard that they must have for humans and nature.",
"title": "Meaning and function"
},
{
"paragraph_id": 9,
"text": "Historian David Christian has summarised issues common to multiple creation myths:",
"title": "Meaning and function"
},
{
"paragraph_id": 10,
"text": "How did everything begin? This is the first question faced by any creation myth and ... answering it remains tricky. ... Each beginning seems to presuppose an earlier beginning. ... Instead of meeting a single starting point, we encounter an infinity of them, each of which poses the same problem. ... There are no entirely satisfactory solutions to this dilemma. What we have to find is not a solution but some way of dealing with the mystery .... And we have to do so using words. The words we reach for, from God to gravity, are inadequate to the task. So we have to use language poetically or symbolically; and such language, whether used by a scientist, a poet, or a shaman, can easily be misunderstood.",
"title": "Meaning and function"
},
{
"paragraph_id": 11,
"text": "Mythologists have applied various schemes to classify creation myths found throughout human cultures. Eliade and his colleague Charles Long developed a classification based on some common motifs that reappear in stories the world over. The classification identifies five basic types:",
"title": "Classification"
},
{
"paragraph_id": 12,
"text": "Marta Weigle further developed and refined this typology to highlight nine themes, adding elements such as deus faber, a creation crafted by a deity, creation from the work of two creators working together or against each other, creation from sacrifice and creation from division/conjugation, accretion/conjunction, or secretion.",
"title": "Classification"
},
{
"paragraph_id": 13,
"text": "An alternative system based on six recurring narrative themes was designed by Raymond Van Over:",
"title": "Classification"
},
{
"paragraph_id": 14,
"text": "The myth that God created the world out of nothing – ex nihilo – is central today to Judaism, Christianity, and Islam, and the medieval Jewish philosopher Maimonides felt it was the only concept that the three religions shared. Nonetheless, the concept is not found in the entire Hebrew Bible. The authors of Genesis 1 were concerned not with the origins of matter (the material which God formed into the habitable cosmos), but with assigning roles so that the cosmos should function. In the early 2nd century CE, early Christian scholars were beginning to see a tension between the idea of world-formation and the omnipotence of God, and by the beginning of the 3rd century creation ex nihilo had become a fundamental tenet of Christian theology.",
"title": "Classification"
},
{
"paragraph_id": 15,
"text": "Ex nihilo creation is found in creation stories from ancient Egypt, the Rig Veda, and many animistic cultures in Africa, Asia, Oceania, and North America. In most of these stories, the world is brought into being by the speech, dream, breath, or pure thought of a creator but creation ex nihilo may also take place through a creator's bodily secretions.",
"title": "Classification"
},
{
"paragraph_id": 16,
"text": "The literal translation of the phrase ex nihilo is \"from nothing\" but in many creation myths the line is blurred whether the creative act would be better classified as a creation ex nihilo or creation from chaos. In ex nihilo creation myths, the potential and the substance of creation springs from within the creator. Such a creator may or may not be existing in physical surroundings such as darkness or water, but does not create the world from them, whereas in creation from chaos the substance used for creation is pre-existing within the unformed void.",
"title": "Classification"
},
{
"paragraph_id": 17,
"text": "In creation from chaos myths, there is nothing initially but a formless, shapeless expanse. In these stories the word \"chaos\" means \"disorder\", and this formless expanse, which is also sometimes called a void or an abyss, contains the material with which the created world will be made. Chaos may be described as having the consistency of vapor or water, dimensionless, and sometimes salty or muddy. These myths associate chaos with evil and oblivion, in contrast to \"order\" (cosmos) which is the good. The act of creation is the bringing of order from disorder, and in many of these cultures it is believed that at some point the forces preserving order and form will weaken and the world will once again be engulfed into the abyss. One example is the Genesis creation narrative from the first chapter of the Book of Genesis.",
"title": "Classification"
},
{
"paragraph_id": 18,
"text": "There are two types of world parent myths, both describing a separation or splitting of a primeval entity, the world parent or parents. One form describes the primeval state as an eternal union of two parents, and the creation takes place when the two are pulled apart. The two parents are commonly identified as Sky (usually male) and Earth (usually female), who were so tightly bound to each other in the primeval state that no offspring could emerge. These myths often depict creation as the result of a sexual union and serve as genealogical record of the deities born from it.",
"title": "Classification"
},
{
"paragraph_id": 19,
"text": "In the second form of world parent myths, creation itself springs from dismembered parts of the body of the primeval being. Often, in these stories, the limbs, hair, blood, bones, or organs of the primeval being are somehow severed or sacrificed to transform into sky, earth, animal or plant life, and other worldly features. These myths tend to emphasize creative forces as animistic in nature rather than sexual, and depict the sacred as the elemental and integral component of the natural world. One example of this is the Norse creation myth described in Völuspá, the first poem of Gylfaginning.",
"title": "Classification"
},
{
"paragraph_id": 20,
"text": "In emergence myths, humanity emerges from another world into the one they currently inhabit. The previous world is often considered the womb of the earth mother, and the process of emergence is likened to the act of giving birth. The role of midwife is usually played by a female deity, like the spider woman of several mythologies of Indigenous peoples in the Americas. Male characters rarely figure into these stories, and scholars often consider them in counterpoint to male-oriented creation myths, like those of the ex nihilo variety.",
"title": "Classification"
},
{
"paragraph_id": 21,
"text": "Emergence myths commonly describe the creation of people and/or supernatural beings as a staged ascent or metamorphosis from nascent forms through a series of subterranean worlds to arrive at their current place and form. Often the passage from one world or stage to the next is impelled by inner forces, a process of germination or gestation from earlier, embryonic forms. The genre is most commonly found in Native American cultures where the myths frequently link the final emergence of people from a hole opening to the underworld to stories about their subsequent migrations and eventual settlement in their current homelands.",
"title": "Classification"
},
{
"paragraph_id": 22,
"text": "The earth-diver is a common character in various traditional creation myths. In these stories a supreme being usually sends an animal (most often a type of bird, but also crustaceans, insects, and fish in some narratives) into the primal waters to find bits of sand or mud with which to build habitable land. Some scholars interpret these myths psychologically while others interpret them cosmogonically. In both cases emphasis is placed on beginnings emanating from the depths.",
"title": "Classification"
},
{
"paragraph_id": 23,
"text": "According to Gudmund Hatt and Tristram P. Coffin, Earth-diver myths are common in Native American folklore, among the following populations: Shoshone, Meskwaki, Blackfoot, Chipewyan, Newettee, Yokuts of California, Mandan, Hidatsa, Cheyenne, Arapaho, Ojibwe, Yuchi, and Cherokee.",
"title": "Classification"
},
{
"paragraph_id": 24,
"text": "American anthropologist Gladys Reichard located the distribution of the motif across \"all parts of North America\", save for \"the extreme north, northeast, and southwest\". In a 1977 study, anthropologist Victor Barnouw surmised that the earth-diver motif appeared in \"hunting-gathering societies\", mainly among northerly groups such as the Hare, Dogrib, Kaska, Beaver, Carrier, Chipewyan, Sarsi, Cree, and Montagnais.",
"title": "Classification"
},
{
"paragraph_id": 25,
"text": "Similar tales are also found among the Chukchi and Yukaghir, the Tatars, and many Finnic traditions, as well as among the Buryat and the Samoyed. In addition, the earth-diver motif also exists in narratives from Eastern Europe, namely Romani, Romanian, Slavic (namely, Bulgarian, Polish, Ukrainian, and Belarusian), and Lithuanian mythological traditions.",
"title": "Classification"
},
{
"paragraph_id": 26,
"text": "The pattern of distribution of these stories suggest they have a common origin in the eastern Asiatic coastal region, spreading as peoples migrated west into Siberia and east to the North American continent. However, there are examples of this mytheme found well outside of this boreal distribution pattern, for example the West African Yoruba creation myth of Ọbatala and Oduduwa.",
"title": "Classification"
},
{
"paragraph_id": 27,
"text": "Characteristic of many Native American myths, earth-diver creation stories begin as beings and potential forms linger asleep or suspended in the primordial realm. The earth-diver is among the first of them to awaken and lay the necessary groundwork by building suitable lands where the coming creation will be able to live. In many cases, these stories will describe a series of failed attempts to make land before the solution is found.",
"title": "Classification"
},
{
"paragraph_id": 28,
"text": "Among the indigenous peoples of the Americas, the earth-diver cosmogony is attested in Iroquois mythology: a female sky deity falls from the heavens, and certain animals, the beaver, the otter, the duck, and the muskrat dive in the waters to fetch mud to construct an island.",
"title": "Classification"
},
{
"paragraph_id": 29,
"text": "In a similar story from the Seneca, people lived in a sky realm. One day, the chief's daughter was afflicted with a mysterious illness, and the only cure recommended for her (revealed in a dream) was to lie beside a tree and to have it be dug up. The people do so, but a man complains that the tree was their livelihood, and kicks the girl through the hole. She ends up falling from the sky to a world of only water, but is rescued by waterfowl. A turtle offers to bear her on its shell, but asked where would be a definitive dwelling place for her. They decide to create land, and the toad dives into the depths of the primal sea to get pieces of soil. The toad puts it on the turtle's back, which grows larger with every deposit of soil.",
"title": "Classification"
},
{
"paragraph_id": 30,
"text": "In another version from the Wyandot, the Wyandot lived in heaven. The daughter of the Big Chief (or Mighty Ruler) was sick, so the medicine man recommends that they dig up the wild apple tree that stands next to the Lodge of the Mighty Ruler, because the remedy is to be found on its roots. However, as the tree has been dug out, the ground begins to sink away, and the treetops catch and carry down the sick daughter with it. As the girl falls from the skies, two swans rescue her on their backs. The birds decide to summon all the Swimmers and the Water Tribes. Many volunteer to dive into the Great Water to fetch bits of earth from the bottom of the sea, but only the toad (female, in the story) is the one successful.",
"title": "Classification"
},
{
"paragraph_id": 31,
"text": "On the Earth-diver motif:",
"title": "Further reading"
}
] | A creation myth or cosmogonic myth is a type of cosmogony, a symbolic narrative of how the world began and how people first came to inhabit it. While in popular usage the term myth often refers to false or fanciful stories, members of cultures often ascribe varying degrees of truth to their creation myths. In the society in which it is told, a creation myth is usually regarded as conveying profound truths – metaphorically, symbolically, historically, or literally. They are commonly, although not always, considered cosmogonical myths – that is, they describe the ordering of the cosmos from a state of chaos or amorphousness. Creation myths often share several features. They often are considered sacred accounts and can be found in nearly all known religious traditions. They are all stories with a plot and characters who are either deities, human-like figures, or animals, who often speak and transform easily. They are often set in a dim and nonspecific past that historian of religion Mircea Eliade termed in illo tempore. Creation myths address questions deeply meaningful to the society that shares them, revealing their central worldview and the framework for the self-identity of the culture and individual in a universal context. Creation myths develop in oral traditions and therefore typically have multiple versions; found throughout human culture, they are the most common form of myth. | 2001-12-03T19:00:10Z | 2023-12-28T05:21:56Z | [
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] | https://en.wikipedia.org/wiki/Creation_myth |
7,324 | Crucifix | A crucifix (from the Latin cruci fixus meaning '(one) fixed to a cross') is a cross with an image of Jesus on it, as distinct from a bare cross. The representation of Jesus himself on the cross is referred to in English as the corpus (Latin for 'body').
The crucifix is a principal symbol for many groups of Christians, and one of the most common forms of the Crucifixion in the arts. It is especially important in the Catholic Church, but is also used in the Eastern Orthodox Church, most Oriental Orthodox Churches (except the Armenian & Syriac Church), Lutheranism, Anglicanism. The symbol is less common in churches of other Protestant denominations, and in the Assyrian Church of the East and Armenian Apostolic Church, which prefer to use a cross without the figure of Jesus (the corpus). The crucifix emphasizes Jesus' sacrifice—his death by crucifixion, which Christians believe brought about the redemption of mankind. Most crucifixes portray Jesus on a Latin cross, rather than any other shape, such as a Tau cross or a Coptic cross.
Roman Catholics see the crucifix as the perfect fulfillment of that inferred by the serpent created by Moses in Numbers 21:8—9, called the Nehushtan. It was promised that those sinners who looked upon the Nehushtan would be healed. The section of Numbers about the Nehushtan is one of the readings on Exaltation of the Cross that occurs on September 14 in the Roman Catholic Church. It is paired with John 3:14–15 as the gospel reading. Taken together, these readings explain the striking front and center position of a large crucifix normally fixed above or behind a Catholic altar.
Western crucifixes usually have a three-dimensional corpus, but in Eastern Orthodoxy Jesus' body is normally painted on the cross, or in low relief. Strictly speaking, to be a crucifix, the cross must be three-dimensional, but this distinction is not always observed. An entire painting of the crucifixion of Jesus including a landscape background and other figures is not a crucifix either.
Large crucifixes high across the central axis of a church are known by the Old English term rood. By the Late Middle Ages these were a near-universal feature of Western churches, but they are now very rare. Modern Roman Catholic churches and many Lutheran churches often have a crucifix above the altar on the wall; for the celebration of Mass, the Roman Rite of the Catholic Church requires that "on or close to the altar there is to be a cross with a figure of Christ crucified".
The standard, four-pointed Latin crucifix consists of an upright post or stipes and a single crosspiece to which the sufferer's arms were nailed. There may also be a short projecting nameplate, showing the letters INRI (Greek: INBI). The Russian Orthodox crucifix usually has an additional third crossbar, to which the feet are nailed, and which is angled upward toward the penitent thief Saint Dismas (to the viewer's left) and downward toward the impenitent thief Gestas (to the viewer's right). The corpus of Eastern crucifixes is normally a two-dimensional or low relief icon that shows Jesus as already dead, his face peaceful and somber. They are rarely three-dimensional figures as in the Western tradition, although these may be found where Western influences are strong, but are more typically icons painted on a piece of wood shaped to include the double-barred cross and perhaps the edge of Christ's hips and halo, and no background. More sculptural small crucifixes in metal relief are also used in Orthodoxy (see gallery examples), including as pectoral crosses and blessing crosses.
Western crucifixes may show Christ dead or alive, the presence of the spear wound in his ribs traditionally indicating that he is dead. In either case his face very often shows his suffering. In the Eastern Orthodox tradition he has normally been shown as dead since around the end of the period of Byzantine Iconoclasm. Eastern crucifixes have Jesus' two feet nailed side by side, rather than crossed one above the other, as Western crucifixes have shown them since around the 13th century. The crown of thorns is also generally absent in Eastern crucifixes, since the emphasis is not on Christ's suffering, but on his triumph over sin and death. The "S"-shaped position of Jesus' body on the cross is a Byzantine innovation of the late 10th century, though also found in the German Gero Cross of the same date. Probably more from Byzantine influence, it spread elsewhere in the West, especially to Italy, by the Romanesque period, though it was more usual in painting than sculpted crucifixes. It was in Italy that the emphasis was put on Jesus' suffering and realistic details, during a process of general humanization of Christ favored by the Franciscan order. During the 13th century the suffering Italian model (Christus patiens) triumphed over the traditional Byzantine one (Christus gloriosus) anywhere in Europe also due to the works of artists such as Giunta Pisano and Cimabue. Since the Renaissance the "S"-shape is generally much less pronounced. Eastern Christian blessing crosses will often have the Crucifixion depicted on one side, and the Resurrection on the other, illustrating Eastern Orthodox theology's understanding of the Crucifixion and Resurrection as two intimately related aspects of the same act of salvation.
Another, symbolic, depiction shows a triumphant Christ (Latin: Christus triumphans), clothed in robes, rather than stripped as for his execution, with arms raised, appearing to rise up from the cross, sometimes accompanied by "rays of light", or an aureole encircling his body. He may be robed as a prophet, crowned as a king, and vested in a stole as Great High Priest.
On some crucifixes a skull and crossbones are shown below the corpus, referring to Golgotha (Calvary), the site at which Jesus was crucified, which the Gospels say means in Hebrew "the place of the skull." Medieval tradition held that it was the burial-place of Adam and Eve, and that the cross of Christ was raised directly over Adam's skull, so many crucifixes manufactured in Catholic countries still show the skull and crossbones below the corpus.
Very large crucifixes have been built, the largest being the Cross in the Woods in Michigan, with a 31 feet (9.4 m) high statue.
In the early Church, many Christians hung a cross on the eastern wall of their house in order to indicate the eastward direction of prayer. Prayer in front of a crucifix, which is seen as a sacramental, is often part of devotion for Christians, especially those worshipping in a church, also privately. The person may sit, stand, or kneel in front of the crucifix, sometimes looking at it in contemplation, or merely in front of it with head bowed or eyes closed. During the Middle Ages small crucifixes, generally hung on a wall, became normal in the personal cells or living quarters first of monks, then all clergy, followed by the homes of the laity, spreading down from the top of society as these became cheap enough for the average person to afford. Most towns had a large crucifix erected as a monument, or some other shrine at the crossroads of the town. Building on the ancient custom, many Catholics, Lutherans and Anglicans hang a crucifix inside their homes and also use the crucifix as a focal point of a home altar. The wealthy erected proprietary chapels as they could afford to do this.
Catholic (both Eastern and Western), Eastern Orthodox, Oriental Orthodox, Anglican and Lutheran Christians generally use the crucifix in public religious services. They believe use of the crucifix is in keeping with the statement by Paul the Apostle in 1 Corinthians: "we preach Christ crucified, a stumbling block to Jews and folly to Gentiles, but to those who are called, both Jews and Greeks, Christ the power of God and the wisdom of God".
In the West, altar crosses and processional crosses began to be crucifixes in the 11th century, which became general around the 14th century, as they became cheaper. The Roman Rite requires that "either on the altar or near it, there is to be a cross, with the figure of Christ crucified upon it, a cross clearly visible to the assembled people. It is desirable that such a cross should remain near the altar even outside of liturgical celebrations, so as to call to mind for the faithful the saving Passion of the Lord." The requirement of the altar cross was also mentioned in pre-1970 editions of the Roman Missal, though not in the original 1570 Roman Missal of Pope Pius V. The Rite of Funerals says that the Gospel Book, the Bible, or a cross (which will generally be in crucifix form) may be placed on the coffin for a Requiem Mass, but a second standing cross is not to be placed near the coffin if the altar cross can be easily seen from the body of the church.
Eastern Christian liturgical processions called crucessions include a cross or crucifix at their head. In the Eastern Orthodox Church, the crucifix is often placed above the iconostasis in the church. In the Russian Orthodox Church a large crucifix ("Golgotha") is placed behind the Holy Table (altar). During Matins of Good Friday, a large crucifix is taken in procession to the center of the church, where it is venerated by the faithful. Sometimes the soma (corpus) is removable and is taken off the crucifix at Vespers that evening during the Gospel lesson describing the Descent from the Cross. The empty cross may then remain in the centre of the church until the Paschal vigil (local practices vary). The blessing cross which the priest uses to bless the faithful at the dismissal will often have the crucifix on one side and an icon of the Resurrection of Jesus on the other, the side with the Resurrection being used on Sundays and during Paschaltide, and the crucifix on other days.
Exorcist Gabriele Amorth has stated that the crucifix is one of the most effective means of averting or opposing demons. In folklore, it is believed to ward off vampires, incubi, succubi, and other evils.
Modern anti-Christians have used an inverted (upside-down) crucifix when showing disdain for Jesus Christ or the Catholic Church which believes in his divinity. According to Christian tradition, Saint Peter was martyred by being crucified upside-down.
In the Moravian Church, Nicolaus Zinzendorf had an experience in which he believed he encountered Jesus. Seeing a painting of a crucifix, Zinzendorf fell on his knees vowing to glorify Jesus after contemplating on the wounds of Christ and an inscription that stated "This is what I have done for you, what will you do for me?".
The Lutheran Churches retained the use of the crucifix, "justifying their continued use of medieval crucifixes with the same arguments employed since the Middle Ages, as is evident from the example of the altar of the Holy Cross in the Cistercian church of Doberan." Martin Luther did not object to them, and this was among his differences with Andreas Karlstadt as early as 1525. At the time of the Reformation, Luther retained the crucifix in the Lutheran Church and they remain the center of worship in Lutheran parishes across Europe. In the United States, however, Lutheranism came under the influence of Calvinism, and the plain cross came to be used in many churches. In contrast to the practice of the Moravian Church and Lutheran Churches, the early Reformed Churches rejected the use of the crucifix, and indeed the unadorned cross, along with other traditional religious imagery, as idolatrous. Calvin, considered to be the father of the Reformed Church, was violently opposed to both cross and crucifix. In England, the Royal Chapels of Elizabeth I were most unusual among local churches in retaining crucifixes, following the Queen's conservative tastes. These disappeared under her successor, James I, and their brief re-appearance in the early 1620s when James' heir was seeking a Spanish marriage was the subject of rumour and close observation by both Catholics and Protestants; when the match fell through they disappeared.
In 2005, a mother accused her daughter's school in Derby, England, of discriminating against Christians after the teenager was suspended for refusing to take off a crucifix necklace.
In 2008, a chapel in a prison in England replaced its crucifix and static altar with a cross and portable altar when it was renovated as a multi-faith chapel. Right-leaning media reported that the crucifix had been removed "in case it offends Muslims".
In 2008 in Spain, a local judge ordered crucifixes removed from public schools to settle a decades-old dispute over whether crucifixes should be displayed in public buildings in a non-confessional state.
On 18 March 2011, the European Court of Human Rights ruled in the Lautsi v. Italy case, that the requirement in Italian law that crucifixes be displayed in classrooms of state schools does not violate the European Convention on Human Rights. Crucifixes are common in most other Italian official buildings, including courts of law.
On 24 March 2011, the Constitutional Court of Peru ruled that the presence of crucifixes in courts of law does not violate the secular nature of the state. | [
{
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"text": "A crucifix (from the Latin cruci fixus meaning '(one) fixed to a cross') is a cross with an image of Jesus on it, as distinct from a bare cross. The representation of Jesus himself on the cross is referred to in English as the corpus (Latin for 'body').",
"title": ""
},
{
"paragraph_id": 1,
"text": "The crucifix is a principal symbol for many groups of Christians, and one of the most common forms of the Crucifixion in the arts. It is especially important in the Catholic Church, but is also used in the Eastern Orthodox Church, most Oriental Orthodox Churches (except the Armenian & Syriac Church), Lutheranism, Anglicanism. The symbol is less common in churches of other Protestant denominations, and in the Assyrian Church of the East and Armenian Apostolic Church, which prefer to use a cross without the figure of Jesus (the corpus). The crucifix emphasizes Jesus' sacrifice—his death by crucifixion, which Christians believe brought about the redemption of mankind. Most crucifixes portray Jesus on a Latin cross, rather than any other shape, such as a Tau cross or a Coptic cross.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Roman Catholics see the crucifix as the perfect fulfillment of that inferred by the serpent created by Moses in Numbers 21:8—9, called the Nehushtan. It was promised that those sinners who looked upon the Nehushtan would be healed. The section of Numbers about the Nehushtan is one of the readings on Exaltation of the Cross that occurs on September 14 in the Roman Catholic Church. It is paired with John 3:14–15 as the gospel reading. Taken together, these readings explain the striking front and center position of a large crucifix normally fixed above or behind a Catholic altar.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Western crucifixes usually have a three-dimensional corpus, but in Eastern Orthodoxy Jesus' body is normally painted on the cross, or in low relief. Strictly speaking, to be a crucifix, the cross must be three-dimensional, but this distinction is not always observed. An entire painting of the crucifixion of Jesus including a landscape background and other figures is not a crucifix either.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Large crucifixes high across the central axis of a church are known by the Old English term rood. By the Late Middle Ages these were a near-universal feature of Western churches, but they are now very rare. Modern Roman Catholic churches and many Lutheran churches often have a crucifix above the altar on the wall; for the celebration of Mass, the Roman Rite of the Catholic Church requires that \"on or close to the altar there is to be a cross with a figure of Christ crucified\".",
"title": ""
},
{
"paragraph_id": 5,
"text": "The standard, four-pointed Latin crucifix consists of an upright post or stipes and a single crosspiece to which the sufferer's arms were nailed. There may also be a short projecting nameplate, showing the letters INRI (Greek: INBI). The Russian Orthodox crucifix usually has an additional third crossbar, to which the feet are nailed, and which is angled upward toward the penitent thief Saint Dismas (to the viewer's left) and downward toward the impenitent thief Gestas (to the viewer's right). The corpus of Eastern crucifixes is normally a two-dimensional or low relief icon that shows Jesus as already dead, his face peaceful and somber. They are rarely three-dimensional figures as in the Western tradition, although these may be found where Western influences are strong, but are more typically icons painted on a piece of wood shaped to include the double-barred cross and perhaps the edge of Christ's hips and halo, and no background. More sculptural small crucifixes in metal relief are also used in Orthodoxy (see gallery examples), including as pectoral crosses and blessing crosses.",
"title": "Description"
},
{
"paragraph_id": 6,
"text": "Western crucifixes may show Christ dead or alive, the presence of the spear wound in his ribs traditionally indicating that he is dead. In either case his face very often shows his suffering. In the Eastern Orthodox tradition he has normally been shown as dead since around the end of the period of Byzantine Iconoclasm. Eastern crucifixes have Jesus' two feet nailed side by side, rather than crossed one above the other, as Western crucifixes have shown them since around the 13th century. The crown of thorns is also generally absent in Eastern crucifixes, since the emphasis is not on Christ's suffering, but on his triumph over sin and death. The \"S\"-shaped position of Jesus' body on the cross is a Byzantine innovation of the late 10th century, though also found in the German Gero Cross of the same date. Probably more from Byzantine influence, it spread elsewhere in the West, especially to Italy, by the Romanesque period, though it was more usual in painting than sculpted crucifixes. It was in Italy that the emphasis was put on Jesus' suffering and realistic details, during a process of general humanization of Christ favored by the Franciscan order. During the 13th century the suffering Italian model (Christus patiens) triumphed over the traditional Byzantine one (Christus gloriosus) anywhere in Europe also due to the works of artists such as Giunta Pisano and Cimabue. Since the Renaissance the \"S\"-shape is generally much less pronounced. Eastern Christian blessing crosses will often have the Crucifixion depicted on one side, and the Resurrection on the other, illustrating Eastern Orthodox theology's understanding of the Crucifixion and Resurrection as two intimately related aspects of the same act of salvation.",
"title": "Description"
},
{
"paragraph_id": 7,
"text": "Another, symbolic, depiction shows a triumphant Christ (Latin: Christus triumphans), clothed in robes, rather than stripped as for his execution, with arms raised, appearing to rise up from the cross, sometimes accompanied by \"rays of light\", or an aureole encircling his body. He may be robed as a prophet, crowned as a king, and vested in a stole as Great High Priest.",
"title": "Description"
},
{
"paragraph_id": 8,
"text": "On some crucifixes a skull and crossbones are shown below the corpus, referring to Golgotha (Calvary), the site at which Jesus was crucified, which the Gospels say means in Hebrew \"the place of the skull.\" Medieval tradition held that it was the burial-place of Adam and Eve, and that the cross of Christ was raised directly over Adam's skull, so many crucifixes manufactured in Catholic countries still show the skull and crossbones below the corpus.",
"title": "Description"
},
{
"paragraph_id": 9,
"text": "Very large crucifixes have been built, the largest being the Cross in the Woods in Michigan, with a 31 feet (9.4 m) high statue.",
"title": "Description"
},
{
"paragraph_id": 10,
"text": "In the early Church, many Christians hung a cross on the eastern wall of their house in order to indicate the eastward direction of prayer. Prayer in front of a crucifix, which is seen as a sacramental, is often part of devotion for Christians, especially those worshipping in a church, also privately. The person may sit, stand, or kneel in front of the crucifix, sometimes looking at it in contemplation, or merely in front of it with head bowed or eyes closed. During the Middle Ages small crucifixes, generally hung on a wall, became normal in the personal cells or living quarters first of monks, then all clergy, followed by the homes of the laity, spreading down from the top of society as these became cheap enough for the average person to afford. Most towns had a large crucifix erected as a monument, or some other shrine at the crossroads of the town. Building on the ancient custom, many Catholics, Lutherans and Anglicans hang a crucifix inside their homes and also use the crucifix as a focal point of a home altar. The wealthy erected proprietary chapels as they could afford to do this.",
"title": "Usage"
},
{
"paragraph_id": 11,
"text": "Catholic (both Eastern and Western), Eastern Orthodox, Oriental Orthodox, Anglican and Lutheran Christians generally use the crucifix in public religious services. They believe use of the crucifix is in keeping with the statement by Paul the Apostle in 1 Corinthians: \"we preach Christ crucified, a stumbling block to Jews and folly to Gentiles, but to those who are called, both Jews and Greeks, Christ the power of God and the wisdom of God\".",
"title": "Usage"
},
{
"paragraph_id": 12,
"text": "In the West, altar crosses and processional crosses began to be crucifixes in the 11th century, which became general around the 14th century, as they became cheaper. The Roman Rite requires that \"either on the altar or near it, there is to be a cross, with the figure of Christ crucified upon it, a cross clearly visible to the assembled people. It is desirable that such a cross should remain near the altar even outside of liturgical celebrations, so as to call to mind for the faithful the saving Passion of the Lord.\" The requirement of the altar cross was also mentioned in pre-1970 editions of the Roman Missal, though not in the original 1570 Roman Missal of Pope Pius V. The Rite of Funerals says that the Gospel Book, the Bible, or a cross (which will generally be in crucifix form) may be placed on the coffin for a Requiem Mass, but a second standing cross is not to be placed near the coffin if the altar cross can be easily seen from the body of the church.",
"title": "Usage"
},
{
"paragraph_id": 13,
"text": "Eastern Christian liturgical processions called crucessions include a cross or crucifix at their head. In the Eastern Orthodox Church, the crucifix is often placed above the iconostasis in the church. In the Russian Orthodox Church a large crucifix (\"Golgotha\") is placed behind the Holy Table (altar). During Matins of Good Friday, a large crucifix is taken in procession to the center of the church, where it is venerated by the faithful. Sometimes the soma (corpus) is removable and is taken off the crucifix at Vespers that evening during the Gospel lesson describing the Descent from the Cross. The empty cross may then remain in the centre of the church until the Paschal vigil (local practices vary). The blessing cross which the priest uses to bless the faithful at the dismissal will often have the crucifix on one side and an icon of the Resurrection of Jesus on the other, the side with the Resurrection being used on Sundays and during Paschaltide, and the crucifix on other days.",
"title": "Usage"
},
{
"paragraph_id": 14,
"text": "Exorcist Gabriele Amorth has stated that the crucifix is one of the most effective means of averting or opposing demons. In folklore, it is believed to ward off vampires, incubi, succubi, and other evils.",
"title": "Usage"
},
{
"paragraph_id": 15,
"text": "Modern anti-Christians have used an inverted (upside-down) crucifix when showing disdain for Jesus Christ or the Catholic Church which believes in his divinity. According to Christian tradition, Saint Peter was martyred by being crucified upside-down.",
"title": "Usage"
},
{
"paragraph_id": 16,
"text": "In the Moravian Church, Nicolaus Zinzendorf had an experience in which he believed he encountered Jesus. Seeing a painting of a crucifix, Zinzendorf fell on his knees vowing to glorify Jesus after contemplating on the wounds of Christ and an inscription that stated \"This is what I have done for you, what will you do for me?\".",
"title": "Controversies"
},
{
"paragraph_id": 17,
"text": "The Lutheran Churches retained the use of the crucifix, \"justifying their continued use of medieval crucifixes with the same arguments employed since the Middle Ages, as is evident from the example of the altar of the Holy Cross in the Cistercian church of Doberan.\" Martin Luther did not object to them, and this was among his differences with Andreas Karlstadt as early as 1525. At the time of the Reformation, Luther retained the crucifix in the Lutheran Church and they remain the center of worship in Lutheran parishes across Europe. In the United States, however, Lutheranism came under the influence of Calvinism, and the plain cross came to be used in many churches. In contrast to the practice of the Moravian Church and Lutheran Churches, the early Reformed Churches rejected the use of the crucifix, and indeed the unadorned cross, along with other traditional religious imagery, as idolatrous. Calvin, considered to be the father of the Reformed Church, was violently opposed to both cross and crucifix. In England, the Royal Chapels of Elizabeth I were most unusual among local churches in retaining crucifixes, following the Queen's conservative tastes. These disappeared under her successor, James I, and their brief re-appearance in the early 1620s when James' heir was seeking a Spanish marriage was the subject of rumour and close observation by both Catholics and Protestants; when the match fell through they disappeared.",
"title": "Controversies"
},
{
"paragraph_id": 18,
"text": "In 2005, a mother accused her daughter's school in Derby, England, of discriminating against Christians after the teenager was suspended for refusing to take off a crucifix necklace.",
"title": "Controversies"
},
{
"paragraph_id": 19,
"text": "In 2008, a chapel in a prison in England replaced its crucifix and static altar with a cross and portable altar when it was renovated as a multi-faith chapel. Right-leaning media reported that the crucifix had been removed \"in case it offends Muslims\".",
"title": "Controversies"
},
{
"paragraph_id": 20,
"text": "In 2008 in Spain, a local judge ordered crucifixes removed from public schools to settle a decades-old dispute over whether crucifixes should be displayed in public buildings in a non-confessional state.",
"title": "Controversies"
},
{
"paragraph_id": 21,
"text": "On 18 March 2011, the European Court of Human Rights ruled in the Lautsi v. Italy case, that the requirement in Italian law that crucifixes be displayed in classrooms of state schools does not violate the European Convention on Human Rights. Crucifixes are common in most other Italian official buildings, including courts of law.",
"title": "Controversies"
},
{
"paragraph_id": 22,
"text": "On 24 March 2011, the Constitutional Court of Peru ruled that the presence of crucifixes in courts of law does not violate the secular nature of the state.",
"title": "Controversies"
}
] | A crucifix is a cross with an image of Jesus on it, as distinct from a bare cross. The representation of Jesus himself on the cross is referred to in English as the corpus. The crucifix is a principal symbol for many groups of Christians, and one of the most common forms of the Crucifixion in the arts. It is especially important in the Catholic Church, but is also used in the Eastern Orthodox Church, most Oriental Orthodox Churches, Lutheranism, Anglicanism. The symbol is less common in churches of other Protestant denominations, and in the Assyrian Church of the East and Armenian Apostolic Church, which prefer to use a cross without the figure of Jesus. The crucifix emphasizes Jesus' sacrifice—his death by crucifixion, which Christians believe brought about the redemption of mankind. Most crucifixes portray Jesus on a Latin cross, rather than any other shape, such as a Tau cross or a Coptic cross. Roman Catholics see the crucifix as the perfect fulfillment of that inferred by the serpent created by Moses in Numbers 21:8—9, called the Nehushtan. It was promised that those sinners who looked upon the Nehushtan would be healed. The section of Numbers about the Nehushtan is one of the readings on Exaltation of the Cross that occurs on September 14 in the Roman Catholic Church. It is paired with John 3:14–15 as the gospel reading. Taken together, these readings explain the striking front and center position of a large crucifix normally fixed above or behind a Catholic altar. Western crucifixes usually have a three-dimensional corpus, but in Eastern Orthodoxy Jesus' body is normally painted on the cross, or in low relief. Strictly speaking, to be a crucifix, the cross must be three-dimensional, but this distinction is not always observed. An entire painting of the crucifixion of Jesus including a landscape background and other figures is not a crucifix either. Large crucifixes high across the central axis of a church are known by the Old English term rood. By the Late Middle Ages these were a near-universal feature of Western churches, but they are now very rare. Modern Roman Catholic churches and many Lutheran churches often have a crucifix above the altar on the wall; for the celebration of Mass, the Roman Rite of the Catholic Church requires that "on or close to the altar there is to be a cross with a figure of Christ crucified". | 2001-12-03T08:19:41Z | 2023-12-22T04:43:23Z | [
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7,327 | Copernican principle | Are cosmological observations made from Earth representative of observations from the average position in the universe?
In physical cosmology, the Copernican principle states that humans, on the Earth or in the Solar System, are not privileged observers of the universe, that observations from the Earth are representative of observations from the average position in the universe. Named for Copernican heliocentrism, it is a working assumption that arises from a modified cosmological extension of Copernicus' argument of a moving Earth.
Hermann Bondi named the principle after Copernicus in the mid-20th century, although the principle itself dates back to the 16th-17th century paradigm shift away from the Ptolemaic system, which placed Earth at the center of the universe. Copernicus proposed that the motion of the planets could be explained by reference to an assumption that the Sun is centrally located and stationary in contrast to the geocentrism. He argued that the apparent retrograde motion of the planets is an illusion caused by Earth's movement around the Sun, which the Copernican model placed at the centre of the universe. Copernicus himself was mainly motivated by technical dissatisfaction with the earlier system and not by support for any mediocrity principle. Although the Copernican heliocentric model is often described as "demoting" Earth from its central role it had in the Ptolemaic geocentric model, it was successors to Copernicus, notably the 16th century Giordano Bruno, who adopted this new perspective. The Earth's central position had been interpreted as being in the "lowest and filthiest parts". Instead, as Galileo said, the Earth is part of the "dance of the stars" rather than the "sump where the universe's filth and ephemera collect". In the late 20th Century, Carl Sagan asked, "Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people."
While the Copernican principle is derived from the negation of past assumptions, such as geocentrism, heliocentrism, or galactocentrism which state that humans are at the center of the universe, the Copernican principle is stronger than acentrism, which merely states that humans are not at the center of the universe. The Copernican principle assumes acentrism and also states that human observers or observations from Earth are representative of observations from the average position in the universe. Michael Rowan-Robinson emphasizes the Copernican principle as the threshold test for modern thought, asserting that: "It is evident that in the post-Copernican era of human history, no well-informed and rational person can imagine that the Earth occupies a unique position in the universe."
Most modern cosmology is based on the assumption that the cosmological principle is almost, but not exactly, true on the largest scales. The Copernican principle represents the irreducible philosophical assumption needed to justify this, when combined with the observations. If one assumes the Copernican principle and observes that the universe appears isotropic or the same in all directions from the vantage point of Earth, then one can infer that the universe is generally homogeneous or the same everywhere (at any given time) and is also isotropic about any given point. These two conditions make up the cosmological principle.
In practice, astronomers observe that the universe has heterogeneous or non-uniform structures up to the scale of galactic superclusters, filaments and great voids. In the current Lambda-CDM model, the predominant model of cosmology in the modern era, the universe is predicted to become more and more homogeneous and isotropic when observed on larger and larger scales, with little detectable structure on scales of more than about 260 million parsecs. However, recent evidence from galaxy clusters, quasars, and type Ia supernovae suggests that isotropy is violated on large scales. Furthermore, various large-scale structures have been discovered, such as the Clowes–Campusano LQG, the Sloan Great Wall, U1.11, the Huge-LQG, the Hercules–Corona Borealis Great Wall, and the Giant Arc, all which indicate that homogeneity might be violated.
On scales comparable to the radius of the observable universe, we see systematic changes with distance from Earth. For instance, at greater distances, galaxies contain more young stars and are less clustered, and quasars appear more numerous. If the Copernican principle is assumed, then it follows that this is evidence for the evolution of the universe with time: this distant light has taken most of the age of the universe to reach Earth and shows the universe when it was young. The most distant light of all, cosmic microwave background radiation, is isotropic to at least one part in a thousand.
Bondi and Thomas Gold used the Copernican principle to argue for the perfect cosmological principle which maintains that the universe is also homogeneous in time, and is the basis for the steady-state cosmology. However, this strongly conflicts with the evidence for cosmological evolution mentioned earlier: the universe has progressed from extremely different conditions at the Big Bang, and will continue to progress toward extremely different conditions, particularly under the rising influence of dark energy, apparently toward the Big Freeze or Big Rip.
Since the 1990s the term has been used (interchangeably with "the Copernicus method") for J. Richard Gott's Bayesian-inference-based prediction of duration of ongoing events, a generalized version of the Doomsday argument.
The Copernican principle has never been proven, and in the most general sense cannot be proven, but it is implicit in many modern theories of physics. Cosmological models are often derived with reference to the cosmological principle, slightly more general than the Copernican principle, and many tests of these models can be considered tests of the Copernican principle.
Before the term Copernican principle was even coined, past assumptions, such as geocentrism, heliocentrism, and galactocentrism, which state that Earth, the Solar System, or the Milky Way respectively were located at the center of the universe, were shown to be false. The Copernican Revolution dethroned Earth to just one of many planets orbiting the Sun. Proper motion was mentioned by Halley. William Herschel found that the Solar System is moving through space within our disk-shaped Milky Way galaxy. Edwin Hubble showed that the Milky Way galaxy is just one of many galaxies in the universe. Examination of the galaxy's position and motion in the universe led to the Big Bang theory and the whole of modern cosmology.
Recent and planned tests relevant to the cosmological and Copernican principles include:
The standard model of cosmology, the Lambda-CDM model, assumes the Copernican principle and the more general cosmological principle. Some cosmologists and theoretical physicists have created models without the cosmological or Copernican principles to constrain the values of observational results, to address specific known issues in the Lambda-CDM model, and to propose tests to distinguish between current models and other possible models.
A prominent example in this context is inhomogeneous cosmology, to model the observed accelerating universe and cosmological constant. Instead of using the current accepted idea of dark energy, this model proposes the universe is much more inhomogeneous than currently assumed, and instead, we are in an extremely large low-density void. To match observations we would have to be very close to the centre of this void, immediately contradicting the Copernican principle.
While the Big Bang model in cosmology is sometimes said to derive from the Copernican principle in conjunction with redshift observations, the Big Bang model can still be assumed to be valid in absence of the Copernican principle, because the cosmic microwave background, primordial gas clouds, and the structure, evolution, and distribution of galaxies all provide evidence, independent of the Copernican principle, in favor of the Big Bang. However, the key tenets of the Big Bang model, such as the expansion of the universe, become assumptions themselves akin to the Copernican principle, rather than derived from the Copernican principle and observations. | [
{
"paragraph_id": 0,
"text": "Are cosmological observations made from Earth representative of observations from the average position in the universe?",
"title": ""
},
{
"paragraph_id": 1,
"text": "In physical cosmology, the Copernican principle states that humans, on the Earth or in the Solar System, are not privileged observers of the universe, that observations from the Earth are representative of observations from the average position in the universe. Named for Copernican heliocentrism, it is a working assumption that arises from a modified cosmological extension of Copernicus' argument of a moving Earth.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Hermann Bondi named the principle after Copernicus in the mid-20th century, although the principle itself dates back to the 16th-17th century paradigm shift away from the Ptolemaic system, which placed Earth at the center of the universe. Copernicus proposed that the motion of the planets could be explained by reference to an assumption that the Sun is centrally located and stationary in contrast to the geocentrism. He argued that the apparent retrograde motion of the planets is an illusion caused by Earth's movement around the Sun, which the Copernican model placed at the centre of the universe. Copernicus himself was mainly motivated by technical dissatisfaction with the earlier system and not by support for any mediocrity principle. Although the Copernican heliocentric model is often described as \"demoting\" Earth from its central role it had in the Ptolemaic geocentric model, it was successors to Copernicus, notably the 16th century Giordano Bruno, who adopted this new perspective. The Earth's central position had been interpreted as being in the \"lowest and filthiest parts\". Instead, as Galileo said, the Earth is part of the \"dance of the stars\" rather than the \"sump where the universe's filth and ephemera collect\". In the late 20th Century, Carl Sagan asked, \"Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.\"",
"title": "Origin and implications"
},
{
"paragraph_id": 3,
"text": "While the Copernican principle is derived from the negation of past assumptions, such as geocentrism, heliocentrism, or galactocentrism which state that humans are at the center of the universe, the Copernican principle is stronger than acentrism, which merely states that humans are not at the center of the universe. The Copernican principle assumes acentrism and also states that human observers or observations from Earth are representative of observations from the average position in the universe. Michael Rowan-Robinson emphasizes the Copernican principle as the threshold test for modern thought, asserting that: \"It is evident that in the post-Copernican era of human history, no well-informed and rational person can imagine that the Earth occupies a unique position in the universe.\"",
"title": "Origin and implications"
},
{
"paragraph_id": 4,
"text": "Most modern cosmology is based on the assumption that the cosmological principle is almost, but not exactly, true on the largest scales. The Copernican principle represents the irreducible philosophical assumption needed to justify this, when combined with the observations. If one assumes the Copernican principle and observes that the universe appears isotropic or the same in all directions from the vantage point of Earth, then one can infer that the universe is generally homogeneous or the same everywhere (at any given time) and is also isotropic about any given point. These two conditions make up the cosmological principle.",
"title": "Origin and implications"
},
{
"paragraph_id": 5,
"text": "In practice, astronomers observe that the universe has heterogeneous or non-uniform structures up to the scale of galactic superclusters, filaments and great voids. In the current Lambda-CDM model, the predominant model of cosmology in the modern era, the universe is predicted to become more and more homogeneous and isotropic when observed on larger and larger scales, with little detectable structure on scales of more than about 260 million parsecs. However, recent evidence from galaxy clusters, quasars, and type Ia supernovae suggests that isotropy is violated on large scales. Furthermore, various large-scale structures have been discovered, such as the Clowes–Campusano LQG, the Sloan Great Wall, U1.11, the Huge-LQG, the Hercules–Corona Borealis Great Wall, and the Giant Arc, all which indicate that homogeneity might be violated.",
"title": "Origin and implications"
},
{
"paragraph_id": 6,
"text": "On scales comparable to the radius of the observable universe, we see systematic changes with distance from Earth. For instance, at greater distances, galaxies contain more young stars and are less clustered, and quasars appear more numerous. If the Copernican principle is assumed, then it follows that this is evidence for the evolution of the universe with time: this distant light has taken most of the age of the universe to reach Earth and shows the universe when it was young. The most distant light of all, cosmic microwave background radiation, is isotropic to at least one part in a thousand.",
"title": "Origin and implications"
},
{
"paragraph_id": 7,
"text": "Bondi and Thomas Gold used the Copernican principle to argue for the perfect cosmological principle which maintains that the universe is also homogeneous in time, and is the basis for the steady-state cosmology. However, this strongly conflicts with the evidence for cosmological evolution mentioned earlier: the universe has progressed from extremely different conditions at the Big Bang, and will continue to progress toward extremely different conditions, particularly under the rising influence of dark energy, apparently toward the Big Freeze or Big Rip.",
"title": "Origin and implications"
},
{
"paragraph_id": 8,
"text": "Since the 1990s the term has been used (interchangeably with \"the Copernicus method\") for J. Richard Gott's Bayesian-inference-based prediction of duration of ongoing events, a generalized version of the Doomsday argument.",
"title": "Origin and implications"
},
{
"paragraph_id": 9,
"text": "The Copernican principle has never been proven, and in the most general sense cannot be proven, but it is implicit in many modern theories of physics. Cosmological models are often derived with reference to the cosmological principle, slightly more general than the Copernican principle, and many tests of these models can be considered tests of the Copernican principle.",
"title": "Tests of the principle"
},
{
"paragraph_id": 10,
"text": "Before the term Copernican principle was even coined, past assumptions, such as geocentrism, heliocentrism, and galactocentrism, which state that Earth, the Solar System, or the Milky Way respectively were located at the center of the universe, were shown to be false. The Copernican Revolution dethroned Earth to just one of many planets orbiting the Sun. Proper motion was mentioned by Halley. William Herschel found that the Solar System is moving through space within our disk-shaped Milky Way galaxy. Edwin Hubble showed that the Milky Way galaxy is just one of many galaxies in the universe. Examination of the galaxy's position and motion in the universe led to the Big Bang theory and the whole of modern cosmology.",
"title": "Tests of the principle"
},
{
"paragraph_id": 11,
"text": "Recent and planned tests relevant to the cosmological and Copernican principles include:",
"title": "Tests of the principle"
},
{
"paragraph_id": 12,
"text": "The standard model of cosmology, the Lambda-CDM model, assumes the Copernican principle and the more general cosmological principle. Some cosmologists and theoretical physicists have created models without the cosmological or Copernican principles to constrain the values of observational results, to address specific known issues in the Lambda-CDM model, and to propose tests to distinguish between current models and other possible models.",
"title": "Physics without the principle"
},
{
"paragraph_id": 13,
"text": "A prominent example in this context is inhomogeneous cosmology, to model the observed accelerating universe and cosmological constant. Instead of using the current accepted idea of dark energy, this model proposes the universe is much more inhomogeneous than currently assumed, and instead, we are in an extremely large low-density void. To match observations we would have to be very close to the centre of this void, immediately contradicting the Copernican principle.",
"title": "Physics without the principle"
},
{
"paragraph_id": 14,
"text": "While the Big Bang model in cosmology is sometimes said to derive from the Copernican principle in conjunction with redshift observations, the Big Bang model can still be assumed to be valid in absence of the Copernican principle, because the cosmic microwave background, primordial gas clouds, and the structure, evolution, and distribution of galaxies all provide evidence, independent of the Copernican principle, in favor of the Big Bang. However, the key tenets of the Big Bang model, such as the expansion of the universe, become assumptions themselves akin to the Copernican principle, rather than derived from the Copernican principle and observations.",
"title": "Physics without the principle"
}
] | In physical cosmology, the Copernican principle states that humans, on the Earth or in the Solar System, are not privileged observers of the universe, that observations from the Earth are representative of observations from the average position in the universe. Named for Copernican heliocentrism, it is a working assumption that arises from a modified cosmological extension of Copernicus' argument of a moving Earth. | 2001-12-04T03:03:03Z | 2023-11-18T22:12:53Z | [
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7,329 | Cyprinidae | Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm in size to the 3 m (9.8 ft) giant barb (Catlocarpio siamensis). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos (κυπρῖνος 'carp').
Cyprinids are stomachless, or agastric, fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scientists to identify species. Strong pharyngeal teeth allow fish such as the common carp and ide to eat hard baits such as snails and bivalves.
Hearing is a well-developed sense in the cyprinids since they have the Weberian organ, three specialized vertebral processes that transfer motion of the gas bladder to the inner ear. The vertebral processes of the Weberian organ also permit a cyprinid to detect changes in motion of the gas bladder due to atmospheric conditions or depth changes. The cyprinids are considered physostomes because the pneumatic duct is retained in adult stages and the fish are able to gulp air to fill the gas bladder, or they can dispose of excess gas to the gut.
Cyprinids are native to North America, Africa, and Eurasia. The largest known cyprinid is the giant barb (Catlocarpio siamensis), which may grow up to 3 m (9.8 ft) in length and 300 kg (660 lb) in weight. Other very large species that can surpass 2 m (6.6 ft) are the golden mahseer (Tor putitora) and mangar (Luciobarbus esocinus). The largest North American species is the Colorado pikeminnow (Ptychocheilus lucius), which can reach up to 1.8 m (5.9 ft) in length. Conversely, many species are smaller than 5 cm (2 in). The smallest known fish is Paedocypris progenetica, reaching 10.3 mm (0.41 in) at the longest.
All fish in this family are egg-layers and most do not guard their eggs; however, a few species build nests and/or guard the eggs. The bitterlings of subfamily Acheilognathinae are notable for depositing their eggs in bivalve molluscs, where the young develop until able to fend for themselves.
Cyprinids contain the first and only known example of androgenesis in a vertebrate, in the Squalius alburnoides allopolyploid complex.
Most cyprinids feed mainly on invertebrates and vegetation, probably due to the lack of teeth and stomach; however, some species, like the asp, are predators that specialize in fish. Many species, such as the ide and the common rudd, prey on small fish when individuals become large enough. Even small species, such as the moderlieschen, are opportunistic predators that will eat larvae of the common frog in artificial circumstances.
Some cyprinids, such as the grass carp, are specialized herbivores; others, such as the common nase, eat algae and biofilms, while others, such as the black carp, specialize in snails, and some, such as the silver carp, are specialized filter feeders. For this reason, cyprinids are often introduced as a management tool to control various factors in the aquatic environment, such as aquatic vegetation and diseases transmitted by snails.
Unlike most fish species, cyprinids generally increase in abundance in eutrophic lakes. Here, they contribute towards positive feedback as they are efficient at eating the zooplankton that would otherwise graze on the algae, reducing its abundance.
Cyprinids are highly important food fish; they are fished and farmed across Eurasia. In land-locked countries in particular, cyprinids are often the major species of fish eaten because they make the largest part of biomass in most water types except for fast-flowing rivers. In Eastern Europe, they are often prepared with traditional methods such as drying and salting. The prevalence of inexpensive frozen fish products made this less important now than it was in earlier times. Nonetheless, in certain places, they remain popular for food, as well as recreational fishing, for ornamental use, and have been deliberately stocked in ponds and lakes for centuries for this reason.
Cyprinids are popular for angling especially for match fishing (due to their dominance in biomass and numbers) and fishing for common carp because of its size and strength.
Several cyprinids have been introduced to waters outside their natural ranges to provide food, sport, or biological control for some pest species. The common carp (Cyprinus carpio) and the grass carp (Ctenopharyngodon idella) are the most important of these, for example in Florida.
Carp in particular can stir up sediment, reducing the clarity of the water and making plant growth difficult.
In America and Australia, such as the Asian carp in the Mississippi Basin, they have become invasive species that compete with native fishes or disrupt the environment.
Cyprinus carpio is a major pest species in Australia impacting freshwater environments, amenity, and the agricultural economy, devastating biodiversity by decimating native fish populations where they first became established as a major pest in the wild in the 1960s. In the major river system of eastern Australia, the Murray-Darling Basin, they constitute 80-90 per cent of fish biomass.
In 2016 the federal government announced A$15.2 million to fund the National Carp Control Plan to investigate using Cyprinid herpesvirus 3 (carp virus) as a biological control agent while minimising impacts on industry and environment should a carp virus release go ahead. Despite initial, favourable assessment, in 2020 this plan was found to be unlikely to work due to the high fecundity of the fish.
Numerous cyprinids have become popular and important within the aquarium and fishpond hobbies, most famously the goldfish, which was bred in China from the Prussian carp (Carassius (auratus) gibelio). First imported into Europe around 1728, it was originally much-fancied by the Chinese nobility as early as 1150 AD and, after it arrived there in 1502, also in Japan. In addition to the goldfish, the common carp was bred in Japan into the colorful ornamental variety known as koi — or more accurately nishikigoi (錦鯉), as koi (鯉) simply means "common carp" in Japanese — from the 18th century until today.
Other popular aquarium cyprinids include danionins, rasborines and true barbs. Larger species are bred by the thousands in outdoor ponds, particularly in Southeast Asia, and trade in these aquarium fishes is of considerable commercial importance. The small rasborines and danionines are perhaps only rivalled by characids (tetras) and poecilid livebearers in their popularity for community aquaria. Some of the most popular cyprinids among aquarists, other than goldfish and koi, include the cherry barb, Harlequin rasbora, pearl danios, rainbow sharks, tiger barbs, and the White Cloud Mountain minnow.
One particular species of these small and undemanding danionines is the zebrafish (Danio rerio). It has become the standard model species for studying developmental genetics of vertebrates, in particular fish.
Habitat destruction and other causes have reduced the wild stocks of several cyprinids to dangerously low levels; some are already entirely extinct. In particular, the cyprinids of the subfamily Leuciscinae from southwestern North America have been hit hard by pollution and unsustainable water use in the early to mid-20th century; most globally extinct cypriniform species are in fact leuciscinid cyprinids from the southwestern United States and northern Mexico.
The massive diversity of cyprinids has so far made it difficult to resolve their phylogeny in sufficient detail to make assignment to subfamilies more than tentative in many cases. Some distinct lineages obviously exist – for example, the Cultrinae and Leuciscinae, regardless of their exact delimitation, are rather close relatives and stand apart from Cyprininae – but the overall systematics and taxonomy of the Cyprinidae remain a subject of considerable debate. A large number of genera are incertae sedis, too equivocal in their traits and/or too little-studied to permit assignment to a particular subfamily with any certainty.
Part of the solution seems that the delicate rasborines are the core group, consisting of minor lineages that have not shifted far from their evolutionary niche, or have coevolved for millions of years. These are among the most basal lineages of living cyprinids. Other "rasborines" are apparently distributed across the diverse lineages of the family.
The validity and circumscription of proposed subfamilies like the Labeoninae or Squaliobarbinae also remain doubtful, although the latter do appear to correspond to a distinct lineage. The sometimes-seen grouping of the large-headed carps (Hypophthalmichthyinae) with Xenocypris, though, seems quite in error. More likely, the latter are part of the Cultrinae.
The entirely paraphyletic "Barbinae" and the disputed Labeoninae might be better treated as part of the Cyprininae, forming a close-knit group whose internal relationships are still little known. The small African "barbs" do not belong in Barbus sensu stricto – indeed, they are as distant from the typical barbels and the typical carps (Cyprinus) as these are from Garra (which is placed in the Labeoninae by most who accept the latter as distinct) and thus might form another as yet unnamed subfamily. However, as noted above, how various minor lineages tie into this has not yet been resolved; therefore, such a radical move, though reasonable, is probably premature.
The tench (Tinca tinca), a significant food species farmed in western Eurasia in large numbers, is unusual. It is most often grouped with the Leuciscinae, but even when these were rather loosely circumscribed, it always stood apart. A cladistic analysis of DNA sequence data of the S7 ribosomal protein intron 1 supports the view that it is distinct enough to constitute a monotypic subfamily. It also suggests it may be closer to the small East Asian Aphyocypris, Hemigrammocypris, and Yaoshanicus. They would have diverged roughly at the same time from cyprinids of east-central Asia, perhaps as a result of the Alpide orogeny that vastly changed the topography of that region in the late Paleogene, when their divergence presumably occurred.
A DNA-based analysis of these fish places the Rasborinae as the basal lineage with the Cyprininae as a sister clade to the Leuciscinae. The subfamilies Acheilognathinae, Gobioninae, and Leuciscinae are monophyletic.
The 5th Edition of Fishes of the World sets out the following subfamilies:
With such a large and diverse family the taxonomy and phylogenies are always being worked on so alternative classifications are being created as new information is discovered, for example:
Subfamily Probarbinae
Subfamily Labeoninae
Subfamily Torinae
Subfamily Smiliogastrinae
Subfamily Cyprininae [incl. Barbinae]
Subfamily Danioninae
Subfamily Leptobarbinae
Subfamily Xenocypridinae [incl. Cultrinae & Squaliobarbinae]
Subfamily Tincinae
Subfamily Acheilognathinae (bitterlings)
Subfamily Gobioninae
Subfamily Tanichthyinae
Subfamily Leuciscinae [incl. Alburninae]
Media related to Cyprinidae at Wikimedia Commons Data related to Cyprinidae at Wikispecies | [
{
"paragraph_id": 0,
"text": "Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm in size to the 3 m (9.8 ft) giant barb (Catlocarpio siamensis). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos (κυπρῖνος 'carp').",
"title": ""
},
{
"paragraph_id": 1,
"text": "Cyprinids are stomachless, or agastric, fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scientists to identify species. Strong pharyngeal teeth allow fish such as the common carp and ide to eat hard baits such as snails and bivalves.",
"title": "Biology and ecology"
},
{
"paragraph_id": 2,
"text": "Hearing is a well-developed sense in the cyprinids since they have the Weberian organ, three specialized vertebral processes that transfer motion of the gas bladder to the inner ear. The vertebral processes of the Weberian organ also permit a cyprinid to detect changes in motion of the gas bladder due to atmospheric conditions or depth changes. The cyprinids are considered physostomes because the pneumatic duct is retained in adult stages and the fish are able to gulp air to fill the gas bladder, or they can dispose of excess gas to the gut.",
"title": "Biology and ecology"
},
{
"paragraph_id": 3,
"text": "Cyprinids are native to North America, Africa, and Eurasia. The largest known cyprinid is the giant barb (Catlocarpio siamensis), which may grow up to 3 m (9.8 ft) in length and 300 kg (660 lb) in weight. Other very large species that can surpass 2 m (6.6 ft) are the golden mahseer (Tor putitora) and mangar (Luciobarbus esocinus). The largest North American species is the Colorado pikeminnow (Ptychocheilus lucius), which can reach up to 1.8 m (5.9 ft) in length. Conversely, many species are smaller than 5 cm (2 in). The smallest known fish is Paedocypris progenetica, reaching 10.3 mm (0.41 in) at the longest.",
"title": "Biology and ecology"
},
{
"paragraph_id": 4,
"text": "All fish in this family are egg-layers and most do not guard their eggs; however, a few species build nests and/or guard the eggs. The bitterlings of subfamily Acheilognathinae are notable for depositing their eggs in bivalve molluscs, where the young develop until able to fend for themselves.",
"title": "Biology and ecology"
},
{
"paragraph_id": 5,
"text": "Cyprinids contain the first and only known example of androgenesis in a vertebrate, in the Squalius alburnoides allopolyploid complex.",
"title": "Biology and ecology"
},
{
"paragraph_id": 6,
"text": "Most cyprinids feed mainly on invertebrates and vegetation, probably due to the lack of teeth and stomach; however, some species, like the asp, are predators that specialize in fish. Many species, such as the ide and the common rudd, prey on small fish when individuals become large enough. Even small species, such as the moderlieschen, are opportunistic predators that will eat larvae of the common frog in artificial circumstances.",
"title": "Biology and ecology"
},
{
"paragraph_id": 7,
"text": "Some cyprinids, such as the grass carp, are specialized herbivores; others, such as the common nase, eat algae and biofilms, while others, such as the black carp, specialize in snails, and some, such as the silver carp, are specialized filter feeders. For this reason, cyprinids are often introduced as a management tool to control various factors in the aquatic environment, such as aquatic vegetation and diseases transmitted by snails.",
"title": "Biology and ecology"
},
{
"paragraph_id": 8,
"text": "Unlike most fish species, cyprinids generally increase in abundance in eutrophic lakes. Here, they contribute towards positive feedback as they are efficient at eating the zooplankton that would otherwise graze on the algae, reducing its abundance.",
"title": "Biology and ecology"
},
{
"paragraph_id": 9,
"text": "",
"title": "Relationship with humans"
},
{
"paragraph_id": 10,
"text": "Cyprinids are highly important food fish; they are fished and farmed across Eurasia. In land-locked countries in particular, cyprinids are often the major species of fish eaten because they make the largest part of biomass in most water types except for fast-flowing rivers. In Eastern Europe, they are often prepared with traditional methods such as drying and salting. The prevalence of inexpensive frozen fish products made this less important now than it was in earlier times. Nonetheless, in certain places, they remain popular for food, as well as recreational fishing, for ornamental use, and have been deliberately stocked in ponds and lakes for centuries for this reason.",
"title": "Relationship with humans"
},
{
"paragraph_id": 11,
"text": "Cyprinids are popular for angling especially for match fishing (due to their dominance in biomass and numbers) and fishing for common carp because of its size and strength.",
"title": "Relationship with humans"
},
{
"paragraph_id": 12,
"text": "Several cyprinids have been introduced to waters outside their natural ranges to provide food, sport, or biological control for some pest species. The common carp (Cyprinus carpio) and the grass carp (Ctenopharyngodon idella) are the most important of these, for example in Florida.",
"title": "Relationship with humans"
},
{
"paragraph_id": 13,
"text": "Carp in particular can stir up sediment, reducing the clarity of the water and making plant growth difficult.",
"title": "Relationship with humans"
},
{
"paragraph_id": 14,
"text": "In America and Australia, such as the Asian carp in the Mississippi Basin, they have become invasive species that compete with native fishes or disrupt the environment.",
"title": "Relationship with humans"
},
{
"paragraph_id": 15,
"text": "Cyprinus carpio is a major pest species in Australia impacting freshwater environments, amenity, and the agricultural economy, devastating biodiversity by decimating native fish populations where they first became established as a major pest in the wild in the 1960s. In the major river system of eastern Australia, the Murray-Darling Basin, they constitute 80-90 per cent of fish biomass.",
"title": "Relationship with humans"
},
{
"paragraph_id": 16,
"text": "In 2016 the federal government announced A$15.2 million to fund the National Carp Control Plan to investigate using Cyprinid herpesvirus 3 (carp virus) as a biological control agent while minimising impacts on industry and environment should a carp virus release go ahead. Despite initial, favourable assessment, in 2020 this plan was found to be unlikely to work due to the high fecundity of the fish.",
"title": "Relationship with humans"
},
{
"paragraph_id": 17,
"text": "Numerous cyprinids have become popular and important within the aquarium and fishpond hobbies, most famously the goldfish, which was bred in China from the Prussian carp (Carassius (auratus) gibelio). First imported into Europe around 1728, it was originally much-fancied by the Chinese nobility as early as 1150 AD and, after it arrived there in 1502, also in Japan. In addition to the goldfish, the common carp was bred in Japan into the colorful ornamental variety known as koi — or more accurately nishikigoi (錦鯉), as koi (鯉) simply means \"common carp\" in Japanese — from the 18th century until today.",
"title": "Relationship with humans"
},
{
"paragraph_id": 18,
"text": "Other popular aquarium cyprinids include danionins, rasborines and true barbs. Larger species are bred by the thousands in outdoor ponds, particularly in Southeast Asia, and trade in these aquarium fishes is of considerable commercial importance. The small rasborines and danionines are perhaps only rivalled by characids (tetras) and poecilid livebearers in their popularity for community aquaria. Some of the most popular cyprinids among aquarists, other than goldfish and koi, include the cherry barb, Harlequin rasbora, pearl danios, rainbow sharks, tiger barbs, and the White Cloud Mountain minnow.",
"title": "Relationship with humans"
},
{
"paragraph_id": 19,
"text": "One particular species of these small and undemanding danionines is the zebrafish (Danio rerio). It has become the standard model species for studying developmental genetics of vertebrates, in particular fish.",
"title": "Relationship with humans"
},
{
"paragraph_id": 20,
"text": "Habitat destruction and other causes have reduced the wild stocks of several cyprinids to dangerously low levels; some are already entirely extinct. In particular, the cyprinids of the subfamily Leuciscinae from southwestern North America have been hit hard by pollution and unsustainable water use in the early to mid-20th century; most globally extinct cypriniform species are in fact leuciscinid cyprinids from the southwestern United States and northern Mexico.",
"title": "Relationship with humans"
},
{
"paragraph_id": 21,
"text": "The massive diversity of cyprinids has so far made it difficult to resolve their phylogeny in sufficient detail to make assignment to subfamilies more than tentative in many cases. Some distinct lineages obviously exist – for example, the Cultrinae and Leuciscinae, regardless of their exact delimitation, are rather close relatives and stand apart from Cyprininae – but the overall systematics and taxonomy of the Cyprinidae remain a subject of considerable debate. A large number of genera are incertae sedis, too equivocal in their traits and/or too little-studied to permit assignment to a particular subfamily with any certainty.",
"title": "Systematics"
},
{
"paragraph_id": 22,
"text": "Part of the solution seems that the delicate rasborines are the core group, consisting of minor lineages that have not shifted far from their evolutionary niche, or have coevolved for millions of years. These are among the most basal lineages of living cyprinids. Other \"rasborines\" are apparently distributed across the diverse lineages of the family.",
"title": "Systematics"
},
{
"paragraph_id": 23,
"text": "The validity and circumscription of proposed subfamilies like the Labeoninae or Squaliobarbinae also remain doubtful, although the latter do appear to correspond to a distinct lineage. The sometimes-seen grouping of the large-headed carps (Hypophthalmichthyinae) with Xenocypris, though, seems quite in error. More likely, the latter are part of the Cultrinae.",
"title": "Systematics"
},
{
"paragraph_id": 24,
"text": "The entirely paraphyletic \"Barbinae\" and the disputed Labeoninae might be better treated as part of the Cyprininae, forming a close-knit group whose internal relationships are still little known. The small African \"barbs\" do not belong in Barbus sensu stricto – indeed, they are as distant from the typical barbels and the typical carps (Cyprinus) as these are from Garra (which is placed in the Labeoninae by most who accept the latter as distinct) and thus might form another as yet unnamed subfamily. However, as noted above, how various minor lineages tie into this has not yet been resolved; therefore, such a radical move, though reasonable, is probably premature.",
"title": "Systematics"
},
{
"paragraph_id": 25,
"text": "The tench (Tinca tinca), a significant food species farmed in western Eurasia in large numbers, is unusual. It is most often grouped with the Leuciscinae, but even when these were rather loosely circumscribed, it always stood apart. A cladistic analysis of DNA sequence data of the S7 ribosomal protein intron 1 supports the view that it is distinct enough to constitute a monotypic subfamily. It also suggests it may be closer to the small East Asian Aphyocypris, Hemigrammocypris, and Yaoshanicus. They would have diverged roughly at the same time from cyprinids of east-central Asia, perhaps as a result of the Alpide orogeny that vastly changed the topography of that region in the late Paleogene, when their divergence presumably occurred.",
"title": "Systematics"
},
{
"paragraph_id": 26,
"text": "A DNA-based analysis of these fish places the Rasborinae as the basal lineage with the Cyprininae as a sister clade to the Leuciscinae. The subfamilies Acheilognathinae, Gobioninae, and Leuciscinae are monophyletic.",
"title": "Systematics"
},
{
"paragraph_id": 27,
"text": "The 5th Edition of Fishes of the World sets out the following subfamilies:",
"title": "Subfamilies and genera"
},
{
"paragraph_id": 28,
"text": "With such a large and diverse family the taxonomy and phylogenies are always being worked on so alternative classifications are being created as new information is discovered, for example:",
"title": "Subfamilies and genera"
},
{
"paragraph_id": 29,
"text": "Subfamily Probarbinae",
"title": "Phylogeny"
},
{
"paragraph_id": 30,
"text": "Subfamily Labeoninae",
"title": "Phylogeny"
},
{
"paragraph_id": 31,
"text": "Subfamily Torinae",
"title": "Phylogeny"
},
{
"paragraph_id": 32,
"text": "Subfamily Smiliogastrinae",
"title": "Phylogeny"
},
{
"paragraph_id": 33,
"text": "Subfamily Cyprininae [incl. Barbinae]",
"title": "Phylogeny"
},
{
"paragraph_id": 34,
"text": "Subfamily Danioninae",
"title": "Phylogeny"
},
{
"paragraph_id": 35,
"text": "Subfamily Leptobarbinae",
"title": "Phylogeny"
},
{
"paragraph_id": 36,
"text": "Subfamily Xenocypridinae [incl. Cultrinae & Squaliobarbinae]",
"title": "Phylogeny"
},
{
"paragraph_id": 37,
"text": "Subfamily Tincinae",
"title": "Phylogeny"
},
{
"paragraph_id": 38,
"text": "Subfamily Acheilognathinae (bitterlings)",
"title": "Phylogeny"
},
{
"paragraph_id": 39,
"text": "Subfamily Gobioninae",
"title": "Phylogeny"
},
{
"paragraph_id": 40,
"text": "Subfamily Tanichthyinae",
"title": "Phylogeny"
},
{
"paragraph_id": 41,
"text": "Subfamily Leuciscinae [incl. Alburninae]",
"title": "Phylogeny"
},
{
"paragraph_id": 42,
"text": "Media related to Cyprinidae at Wikimedia Commons Data related to Cyprinidae at Wikispecies",
"title": "External links"
}
] | Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm in size to the 3 m (9.8 ft) giant barb. By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos. | 2002-02-25T15:43:11Z | 2023-12-30T05:56:38Z | [
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] | https://en.wikipedia.org/wiki/Cyprinidae |
7,330 | Complementary DNA | In genetics, complementary DNA (cDNA) is DNA synthesized from a single-stranded RNA (e.g., messenger RNA (mRNA) or microRNA (miRNA)) template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to express a specific protein in a cell that does not normally express that protein (i.e., heterologous expression), or to sequence or quantify mRNA molecules using DNA based methods (qPCR, RNA-seq). cDNA that codes for a specific protein can be transferred to a recipient cell for expression, often bacterial or yeast expression systems. cDNA is also generated to analyze transcriptomic profiles in bulk tissue, single cells, or single nuclei in assays such as microarrays, qPCR, and RNA-seq.
cDNA is also produced naturally by retroviruses (such as HIV-1, HIV-2, simian immunodeficiency virus, etc.) and then integrated into the host's genome, where it creates a provirus.
The term cDNA is also used, typically in a bioinformatics context, to refer to an mRNA transcript's sequence, expressed as DNA bases (deoxy-GCAT) rather than RNA bases (GCAU).
Patentability of cDNA was a subject of a 2013 US Supreme Court decision in Association for Molecular Pathology v. Myriad Genetics, Inc. As a compromise, the Court declared, that exons-only cDNA is patent-eligible, whereas isolated sequences of naturally occurring DNA comprising introns are not.
RNA serves as a template for cDNA synthesis. In cellular life, cDNA is generated by viruses and retrotransposons for integration of RNA into target genomic DNA. In molecular biology, RNA is purified from source material after genomic DNA, proteins and other cellular components are removed. cDNA is then synthesized through in vitro reverse transcription.
RNA is transcribed from genomic DNA in host cells and is extracted by first lysing cells then purifying RNA utilizing widely-used methods such as phenol-chloroform, silica column, and bead-based RNA extraction methods. Extraction methods vary depending on the source material. For example, extracting RNA from plant tissue requires additional reagents, such as polyvinylpyrrolidone (PVP), to remove phenolic compounds, carbohydrates, and other compounds that will otherwise render RNA unusable. To remove DNA and proteins, enzymes such as DNase and Proteinase K are used for degradation. Importantly, RNA integrity is maintained by inactivating RNases with chaotropic agents such as guanidinium isothiocyanate, sodium dodecyl sulphate (SDS), phenol or chloroform. Total RNA is then separated from other cellular components and precipitated with alcohol. Various commercial kits exist for simple and rapid RNA extractions for specific applications. Additional bead-based methods can be used to isolate specific sub-types of RNA ......(e.g. mRNA and microRNA) based on size or unique RNA regions.
Using a reverse transcriptase enzyme and purified RNA templates, one strand of cDNA is produced (first-strand cDNA synthesis). The M-MLV reverse transcriptase from the Moloney murine leukemia virus is commonly used due to its reduced RNase H activity suited for transcription of longer RNAs. The AMV reverse transcriptase from the avian myeloblastosis virus may also be used for RNA templates with strong secondary structures (i.e. high melting temperature). cDNA is commonly generated from mRNA for gene expression analyses such as RT-qPCR and RNA-seq. mRNA is selectively reverse transcribed using oligo-dT primers that are the reverse complement of the poly-adenylated tail on the 3' end of all mRNA. An optimized mixture of oligo-dT and random hexamer primers increases the chance of obtaining full-length cDNA while reducing 5' or 3' bias. Ribosomal RNA may also be depleted to enrich both mRNA and non-poly-adenylated transcripts such as some non-coding RNA.
The result of first-strand syntheses, RNA-DNA hybrids, can be processed through multiple second-strand synthesis methods or processed directly in downstream assays. An early method known as hairpin-primed synthesis relied on hairpin formation on the 3' end of the first-strand cDNA to prime second-strand synthesis. However, priming is random and hairpin hydrolysis leads to loss of information. The Gubler and Hoffman Procedure uses E. Coli RNase H to nick mRNA that is replaced with E. Coli DNA Polymerase I and sealed with E. Coli DNA Ligase. An optimization of this procedure relies on low RNase H activity of M-MLV to nick mRNA with remaining RNA later removed by adding RNase H after DNA Polymerase translation of the second-strand cDNA. This prevents lost sequence information at the 5' end of the mRNA.
Complementary DNA is often used in gene cloning or as gene probes or in the creation of a cDNA library. When scientists transfer a gene from one cell into another cell in order to express the new genetic material as a protein in the recipient cell, the cDNA will be added to the recipient (rather than the entire gene), because the DNA for an entire gene may include DNA that does not code for the protein or that interrupts the coding sequence of the protein (e.g., introns). Partial sequences of cDNAs are often obtained as expressed sequence tags.
With amplification of DNA sequences via polymerase chain reaction (PCR) now commonplace, one will typically conduct reverse transcription as an initial step, followed by PCR to obtain an exact sequence of cDNA for intra-cellular expression. This is achieved by designing sequence-specific DNA primers that hybridize to the 5' and 3' ends of a cDNA region coding for a protein. Once amplified, the sequence can be cut at each end with nucleases and inserted into one of many small circular DNA sequences known as expression vectors. Such vectors allow for self-replication, inside the cells, and potentially integration in the host DNA. They typically also contain a strong promoter to drive transcription of the target cDNA into mRNA, which is then translated into protein.
cDNA is also used to study gene expression via methods such as RNA-seq or RT-qPCR. For sequencing, RNA must be fragmented due to sequencing platform size limitations. Additionally, second-strand synthesized cDNA must be ligated with adapters that allow cDNA fragments to be PCR amplified and bind to sequencing flow cells. Gene-specific analysis methods commonly use microarrays and RT-qPCR to quantify cDNA levels via fluorometric and other methods.
On 13 June 2013, the United States Supreme Court ruled in the case of Association for Molecular Pathology v. Myriad Genetics that while naturally occurring genes cannot be patented, cDNA is patent-eligible because it does not occur naturally.
Some viruses also use cDNA to turn their viral RNA into mRNA (viral RNA → cDNA → mRNA). The mRNA is used to make viral proteins to take over the host cell.
An example of this first step from viral RNA to cDNA can be seen in the HIV cycle of infection. Here, the host cell membrane becomes attached to the virus’ lipid envelope which allows the viral capsid with two copies of viral genome RNA to enter the host. The cDNA copy is then made through reverse transcription of the viral RNA, a process facilitated by the chaperone CypA and a viral capsid associated reverse transcriptase.
cDNA is also generated by retrotransposons in eukaryotic genomes. Retrotransposons are mobile genetic elements that move themselves within, and sometimes between, genomes via RNA intermediates. This mechanism is shared with viruses with the exclusion of the generation of infectious particles.
Mark D. Adams et al. “Complementary DNA Sequencing: Expressed Sequence Tags and Human Genome Project.” Science (American Association for the Advancement of Science) 252.5013 (1991): 1651–1656. Web.
Philip M. Murphy, and H. Lee Tiffany. “Cloning of Complementary DNA Encoding a Functional Human Interleukin-8 Receptor.” Science (American Association for the Advancement of Science) 253.5025 (1991): 1280–1283. Web. | [
{
"paragraph_id": 0,
"text": "In genetics, complementary DNA (cDNA) is DNA synthesized from a single-stranded RNA (e.g., messenger RNA (mRNA) or microRNA (miRNA)) template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to express a specific protein in a cell that does not normally express that protein (i.e., heterologous expression), or to sequence or quantify mRNA molecules using DNA based methods (qPCR, RNA-seq). cDNA that codes for a specific protein can be transferred to a recipient cell for expression, often bacterial or yeast expression systems. cDNA is also generated to analyze transcriptomic profiles in bulk tissue, single cells, or single nuclei in assays such as microarrays, qPCR, and RNA-seq.",
"title": ""
},
{
"paragraph_id": 1,
"text": "cDNA is also produced naturally by retroviruses (such as HIV-1, HIV-2, simian immunodeficiency virus, etc.) and then integrated into the host's genome, where it creates a provirus.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The term cDNA is also used, typically in a bioinformatics context, to refer to an mRNA transcript's sequence, expressed as DNA bases (deoxy-GCAT) rather than RNA bases (GCAU).",
"title": ""
},
{
"paragraph_id": 3,
"text": "Patentability of cDNA was a subject of a 2013 US Supreme Court decision in Association for Molecular Pathology v. Myriad Genetics, Inc. As a compromise, the Court declared, that exons-only cDNA is patent-eligible, whereas isolated sequences of naturally occurring DNA comprising introns are not.",
"title": ""
},
{
"paragraph_id": 4,
"text": "RNA serves as a template for cDNA synthesis. In cellular life, cDNA is generated by viruses and retrotransposons for integration of RNA into target genomic DNA. In molecular biology, RNA is purified from source material after genomic DNA, proteins and other cellular components are removed. cDNA is then synthesized through in vitro reverse transcription.",
"title": "Synthesis"
},
{
"paragraph_id": 5,
"text": "RNA is transcribed from genomic DNA in host cells and is extracted by first lysing cells then purifying RNA utilizing widely-used methods such as phenol-chloroform, silica column, and bead-based RNA extraction methods. Extraction methods vary depending on the source material. For example, extracting RNA from plant tissue requires additional reagents, such as polyvinylpyrrolidone (PVP), to remove phenolic compounds, carbohydrates, and other compounds that will otherwise render RNA unusable. To remove DNA and proteins, enzymes such as DNase and Proteinase K are used for degradation. Importantly, RNA integrity is maintained by inactivating RNases with chaotropic agents such as guanidinium isothiocyanate, sodium dodecyl sulphate (SDS), phenol or chloroform. Total RNA is then separated from other cellular components and precipitated with alcohol. Various commercial kits exist for simple and rapid RNA extractions for specific applications. Additional bead-based methods can be used to isolate specific sub-types of RNA ......(e.g. mRNA and microRNA) based on size or unique RNA regions.",
"title": "Synthesis"
},
{
"paragraph_id": 6,
"text": "Using a reverse transcriptase enzyme and purified RNA templates, one strand of cDNA is produced (first-strand cDNA synthesis). The M-MLV reverse transcriptase from the Moloney murine leukemia virus is commonly used due to its reduced RNase H activity suited for transcription of longer RNAs. The AMV reverse transcriptase from the avian myeloblastosis virus may also be used for RNA templates with strong secondary structures (i.e. high melting temperature). cDNA is commonly generated from mRNA for gene expression analyses such as RT-qPCR and RNA-seq. mRNA is selectively reverse transcribed using oligo-dT primers that are the reverse complement of the poly-adenylated tail on the 3' end of all mRNA. An optimized mixture of oligo-dT and random hexamer primers increases the chance of obtaining full-length cDNA while reducing 5' or 3' bias. Ribosomal RNA may also be depleted to enrich both mRNA and non-poly-adenylated transcripts such as some non-coding RNA.",
"title": "Synthesis"
},
{
"paragraph_id": 7,
"text": "The result of first-strand syntheses, RNA-DNA hybrids, can be processed through multiple second-strand synthesis methods or processed directly in downstream assays. An early method known as hairpin-primed synthesis relied on hairpin formation on the 3' end of the first-strand cDNA to prime second-strand synthesis. However, priming is random and hairpin hydrolysis leads to loss of information. The Gubler and Hoffman Procedure uses E. Coli RNase H to nick mRNA that is replaced with E. Coli DNA Polymerase I and sealed with E. Coli DNA Ligase. An optimization of this procedure relies on low RNase H activity of M-MLV to nick mRNA with remaining RNA later removed by adding RNase H after DNA Polymerase translation of the second-strand cDNA. This prevents lost sequence information at the 5' end of the mRNA.",
"title": "Synthesis"
},
{
"paragraph_id": 8,
"text": "Complementary DNA is often used in gene cloning or as gene probes or in the creation of a cDNA library. When scientists transfer a gene from one cell into another cell in order to express the new genetic material as a protein in the recipient cell, the cDNA will be added to the recipient (rather than the entire gene), because the DNA for an entire gene may include DNA that does not code for the protein or that interrupts the coding sequence of the protein (e.g., introns). Partial sequences of cDNAs are often obtained as expressed sequence tags.",
"title": "Applications"
},
{
"paragraph_id": 9,
"text": "With amplification of DNA sequences via polymerase chain reaction (PCR) now commonplace, one will typically conduct reverse transcription as an initial step, followed by PCR to obtain an exact sequence of cDNA for intra-cellular expression. This is achieved by designing sequence-specific DNA primers that hybridize to the 5' and 3' ends of a cDNA region coding for a protein. Once amplified, the sequence can be cut at each end with nucleases and inserted into one of many small circular DNA sequences known as expression vectors. Such vectors allow for self-replication, inside the cells, and potentially integration in the host DNA. They typically also contain a strong promoter to drive transcription of the target cDNA into mRNA, which is then translated into protein.",
"title": "Applications"
},
{
"paragraph_id": 10,
"text": "cDNA is also used to study gene expression via methods such as RNA-seq or RT-qPCR. For sequencing, RNA must be fragmented due to sequencing platform size limitations. Additionally, second-strand synthesized cDNA must be ligated with adapters that allow cDNA fragments to be PCR amplified and bind to sequencing flow cells. Gene-specific analysis methods commonly use microarrays and RT-qPCR to quantify cDNA levels via fluorometric and other methods.",
"title": "Applications"
},
{
"paragraph_id": 11,
"text": "On 13 June 2013, the United States Supreme Court ruled in the case of Association for Molecular Pathology v. Myriad Genetics that while naturally occurring genes cannot be patented, cDNA is patent-eligible because it does not occur naturally.",
"title": "Applications"
},
{
"paragraph_id": 12,
"text": "Some viruses also use cDNA to turn their viral RNA into mRNA (viral RNA → cDNA → mRNA). The mRNA is used to make viral proteins to take over the host cell.",
"title": "Viruses and retrotransposons"
},
{
"paragraph_id": 13,
"text": "An example of this first step from viral RNA to cDNA can be seen in the HIV cycle of infection. Here, the host cell membrane becomes attached to the virus’ lipid envelope which allows the viral capsid with two copies of viral genome RNA to enter the host. The cDNA copy is then made through reverse transcription of the viral RNA, a process facilitated by the chaperone CypA and a viral capsid associated reverse transcriptase.",
"title": "Viruses and retrotransposons"
},
{
"paragraph_id": 14,
"text": "cDNA is also generated by retrotransposons in eukaryotic genomes. Retrotransposons are mobile genetic elements that move themselves within, and sometimes between, genomes via RNA intermediates. This mechanism is shared with viruses with the exclusion of the generation of infectious particles.",
"title": "Viruses and retrotransposons"
},
{
"paragraph_id": 15,
"text": "Mark D. Adams et al. “Complementary DNA Sequencing: Expressed Sequence Tags and Human Genome Project.” Science (American Association for the Advancement of Science) 252.5013 (1991): 1651–1656. Web.",
"title": "References"
},
{
"paragraph_id": 16,
"text": "Philip M. Murphy, and H. Lee Tiffany. “Cloning of Complementary DNA Encoding a Functional Human Interleukin-8 Receptor.” Science (American Association for the Advancement of Science) 253.5025 (1991): 1280–1283. Web.",
"title": "References"
}
] | In genetics, complementary DNA (cDNA) is DNA synthesized from a single-stranded RNA template in a reaction catalyzed by the enzyme reverse transcriptase. cDNA is often used to express a specific protein in a cell that does not normally express that protein, or to sequence or quantify mRNA molecules using DNA based methods. cDNA that codes for a specific protein can be transferred to a recipient cell for expression, often bacterial or yeast expression systems. cDNA is also generated to analyze transcriptomic profiles in bulk tissue, single cells, or single nuclei in assays such as microarrays, qPCR, and RNA-seq. cDNA is also produced naturally by retroviruses and then integrated into the host's genome, where it creates a provirus. The term cDNA is also used, typically in a bioinformatics context, to refer to an mRNA transcript's sequence, expressed as DNA bases (deoxy-GCAT) rather than RNA bases (GCAU). Patentability of cDNA was a subject of a 2013 US Supreme Court decision in Association for Molecular Pathology v. Myriad Genetics, Inc. As a compromise, the Court declared, that exons-only cDNA is patent-eligible, whereas isolated sequences of naturally occurring DNA comprising introns are not. | 2001-12-04T12:13:11Z | 2023-11-26T06:44:41Z | [
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7,331 | Cellular digital packet data | Cellular Digital Packet Data (CDPD) is an obsolete wide-area mobile data service which used unused bandwidth normally used by Advanced Mobile Phone System (AMPS) mobile phones between 800 and 900 MHz to transfer data. Speeds up to 19.2 kbit/s were possible, though real world speeds seldom reached higher than 9.6 kbit/s. The service was discontinued in conjunction with the retirement of the parent AMPS service; it has been functionally replaced by faster services such as 1xRTT, Evolution-Data Optimized, and UMTS/High Speed Packet Access (HSPA).
Developed in the early 1990s, CDPD was large on the horizon as a future technology. However, it had difficulty competing against existing slower but less expensive Mobitex and DataTAC systems, and never quite gained widespread acceptance before newer, faster standards such as General Packet Radio Service (GPRS) became dominant.
CDPD had very limited consumer products. AT&T Wireless first sold the technology in the United States under the PocketNet brand. It was one of the first products of wireless web service. Digital Ocean, Inc. an original equipment manufacturer licensee of the Apple Newton, sold the Seahorse product, which integrated the Newton handheld computer, an AMPS/CDPD handset/modem along with a web browser in 1996, winning the CTIA's hardware product of the year award as a smartphone, arguably the world's first. A company named OmniSky provided service for Palm V devices. OmniSky then filed for bankruptcy in 2001 then was picked up by EarthLink Wireless. The technician that developed the tech support for all of the wireless technology was a man by the name of Myron Feasel he was brought from company to company ending up at Palm. Sierra Wireless sold PCMCIA devices and Airlink sold a serial modem. Both of these were used by police and fire departments for dispatch. Wirelesss later sold CDPD under the Wireless Internet brand (not to be confused with Wireless Internet Express, their brand for GPRS/EDGE data). PocketNet was generally considered a failure with competition from 2G services such as Sprint's Wireless Web. AT&T Wireless sold four PocketNet Phone models to the public: the Samsung Duette and the Mitsubishi MobileAccess-120 were AMPS/CDPD PocketNet phones introduced in October 1997; and two IS-136/CDPD Digital PocketNet phones, the Mitsubishi T-250 and the Ericsson R289LX.
Despite its limited success as a consumer offering, CDPD was adopted in a number of enterprise and government networks. It was particularly popular as a first-generation wireless data solution for telemetry devices (machine to machine communications) and for public safety mobile data terminals.
In 2004, major carriers in the United States announced plans to shut down CDPD service. In July 2005, the AT&T Wireless and Cingular Wireless CDPD networks were shut down.
Primary elements of a CDPD network are: 1. End systems: physical & logical end systems that exchange information 2. Intermediate systems: CDPD infrastructure elements that store, forward & route the information
There are 2 kinds of End systems 1. Mobile end system: subscriber unit to access CDPD network over a wireless interface 2. Fixed end system: common host/server that is connected to the CDPD backbone and providing access to specific application and data
There are 2 kinds of Intermediate systems 1. Generic intermediate system: simple router with no knowledge of mobility issues 2. mobile data intermediate system: specialized intermediate system that routes data based on its knowledge of the current location of Mobile end system. It is a set of hardware and software functions that provide switching, accounting, registration, authentication, encryption, and so on.
The design of CDPD was based on several design objectives that are often repeated in designing overlay networks or new networks. A lot of emphasis was laid on open architectures and reusing as much of the existing RF infrastructure as possible. The design goal of CDPD included location independence and independence fro, service provider, so that coverage could be maximized ; application transparency and multiprotocol support, interoperability between products from multiple vendors. | [
{
"paragraph_id": 0,
"text": "Cellular Digital Packet Data (CDPD) is an obsolete wide-area mobile data service which used unused bandwidth normally used by Advanced Mobile Phone System (AMPS) mobile phones between 800 and 900 MHz to transfer data. Speeds up to 19.2 kbit/s were possible, though real world speeds seldom reached higher than 9.6 kbit/s. The service was discontinued in conjunction with the retirement of the parent AMPS service; it has been functionally replaced by faster services such as 1xRTT, Evolution-Data Optimized, and UMTS/High Speed Packet Access (HSPA).",
"title": ""
},
{
"paragraph_id": 1,
"text": "Developed in the early 1990s, CDPD was large on the horizon as a future technology. However, it had difficulty competing against existing slower but less expensive Mobitex and DataTAC systems, and never quite gained widespread acceptance before newer, faster standards such as General Packet Radio Service (GPRS) became dominant.",
"title": ""
},
{
"paragraph_id": 2,
"text": "CDPD had very limited consumer products. AT&T Wireless first sold the technology in the United States under the PocketNet brand. It was one of the first products of wireless web service. Digital Ocean, Inc. an original equipment manufacturer licensee of the Apple Newton, sold the Seahorse product, which integrated the Newton handheld computer, an AMPS/CDPD handset/modem along with a web browser in 1996, winning the CTIA's hardware product of the year award as a smartphone, arguably the world's first. A company named OmniSky provided service for Palm V devices. OmniSky then filed for bankruptcy in 2001 then was picked up by EarthLink Wireless. The technician that developed the tech support for all of the wireless technology was a man by the name of Myron Feasel he was brought from company to company ending up at Palm. Sierra Wireless sold PCMCIA devices and Airlink sold a serial modem. Both of these were used by police and fire departments for dispatch. Wirelesss later sold CDPD under the Wireless Internet brand (not to be confused with Wireless Internet Express, their brand for GPRS/EDGE data). PocketNet was generally considered a failure with competition from 2G services such as Sprint's Wireless Web. AT&T Wireless sold four PocketNet Phone models to the public: the Samsung Duette and the Mitsubishi MobileAccess-120 were AMPS/CDPD PocketNet phones introduced in October 1997; and two IS-136/CDPD Digital PocketNet phones, the Mitsubishi T-250 and the Ericsson R289LX.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Despite its limited success as a consumer offering, CDPD was adopted in a number of enterprise and government networks. It was particularly popular as a first-generation wireless data solution for telemetry devices (machine to machine communications) and for public safety mobile data terminals.",
"title": ""
},
{
"paragraph_id": 4,
"text": "In 2004, major carriers in the United States announced plans to shut down CDPD service. In July 2005, the AT&T Wireless and Cingular Wireless CDPD networks were shut down.",
"title": ""
},
{
"paragraph_id": 5,
"text": "Primary elements of a CDPD network are: 1. End systems: physical & logical end systems that exchange information 2. Intermediate systems: CDPD infrastructure elements that store, forward & route the information",
"title": "CDPD Network and system"
},
{
"paragraph_id": 6,
"text": "There are 2 kinds of End systems 1. Mobile end system: subscriber unit to access CDPD network over a wireless interface 2. Fixed end system: common host/server that is connected to the CDPD backbone and providing access to specific application and data",
"title": "CDPD Network and system"
},
{
"paragraph_id": 7,
"text": "There are 2 kinds of Intermediate systems 1. Generic intermediate system: simple router with no knowledge of mobility issues 2. mobile data intermediate system: specialized intermediate system that routes data based on its knowledge of the current location of Mobile end system. It is a set of hardware and software functions that provide switching, accounting, registration, authentication, encryption, and so on.",
"title": "CDPD Network and system"
},
{
"paragraph_id": 8,
"text": "The design of CDPD was based on several design objectives that are often repeated in designing overlay networks or new networks. A lot of emphasis was laid on open architectures and reusing as much of the existing RF infrastructure as possible. The design goal of CDPD included location independence and independence fro, service provider, so that coverage could be maximized ; application transparency and multiprotocol support, interoperability between products from multiple vendors.",
"title": "CDPD Network and system"
}
] | Cellular Digital Packet Data (CDPD) is an obsolete wide-area mobile data service which used unused bandwidth normally used by Advanced Mobile Phone System (AMPS) mobile phones between 800 and 900 MHz to transfer data. Speeds up to 19.2 kbit/s were possible, though real world speeds seldom reached higher than 9.6 kbit/s. The service was discontinued in conjunction with the retirement of the parent AMPS service; it has been functionally replaced by faster services such as 1xRTT, Evolution-Data Optimized, and UMTS/High Speed Packet Access (HSPA). Developed in the early 1990s, CDPD was large on the horizon as a future technology. However, it had difficulty competing against existing slower but less expensive Mobitex and DataTAC systems, and never quite gained widespread acceptance before newer, faster standards such as General Packet Radio Service (GPRS) became dominant. CDPD had very limited consumer products. AT&T Wireless first sold the technology in the United States under the PocketNet brand. It was one of the first products of wireless web service. Digital Ocean, Inc. an original equipment manufacturer licensee of the Apple Newton, sold the Seahorse product, which integrated the Newton handheld computer, an AMPS/CDPD handset/modem along with a web browser in 1996, winning the CTIA's hardware product of the year award as a smartphone, arguably the world's first. A company named OmniSky provided service for Palm V devices. OmniSky then filed for bankruptcy in 2001 then was picked up by EarthLink Wireless. The technician that developed the tech support for all of the wireless technology was a man by the name of Myron Feasel he was brought from company to company ending up at Palm. Sierra Wireless sold PCMCIA devices and Airlink sold a serial modem. Both of these were used by police and fire departments for dispatch. Wirelesss later sold CDPD under the Wireless Internet brand. PocketNet was generally considered a failure with competition from 2G services such as Sprint's Wireless Web. AT&T Wireless sold four PocketNet Phone models to the public: the Samsung Duette and the Mitsubishi MobileAccess-120 were AMPS/CDPD PocketNet phones introduced in October 1997; and two IS-136/CDPD Digital PocketNet phones, the Mitsubishi T-250 and the Ericsson R289LX. Despite its limited success as a consumer offering, CDPD was adopted in a number of enterprise and government networks. It was particularly popular as a first-generation wireless data solution for telemetry devices and for public safety mobile data terminals. In 2004, major carriers in the United States announced plans to shut down CDPD service. In July 2005, the AT&T Wireless and Cingular Wireless CDPD networks were shut down. | 2001-12-04T13:00:23Z | 2023-08-30T16:42:41Z | [
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7,333 | Chimera | Chimera, Chimaera, or Chimaira (Greek for "she-goat") originally referred to:
Chimera, chimera, chimère, Chimaira, etc. may also refer to: I want to be friends with a chimera. | [
{
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"text": "Chimera, Chimaera, or Chimaira (Greek for \"she-goat\") originally referred to:",
"title": ""
},
{
"paragraph_id": 1,
"text": "Chimera, chimera, chimère, Chimaira, etc. may also refer to: I want to be friends with a chimera.",
"title": ""
}
] | Chimera, Chimaera, or Chimaira originally referred to: Chimera (mythology), a fire-breathing monster of Ancient Lycia said to combine parts from multiple animals
Mount Chimaera, a fire-spewing region of Lycia or Cilicia typically considered the inspiration for the myth Chimera, chimera, chimère, Chimaira, etc. may also refer to: I want to be friends with a chimera. | 2001-12-04T15:21:53Z | 2023-12-07T14:52:59Z | [
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7,335 | Creature of statute | A creature of statute (also known as creature of the state) is a legal entity, such as a corporation, created by statute. Creatures of statute may include municipalities and other artificial legal entities or relationships. Thus, when a statute in some fashion requires the formation of a corporate body—often for governmental purposes—such bodies when formed are known as "creatures of statute." The same concept is also expressed with the phrase "creature of the state."
The term "creature of statute" is most common to the United States. In the United Kingdom, these bodies are simply called statutory corporations (or statutory bodies) and generally have some governmental function. The United Kingdom Atomic Energy Authority is an example. In a wider sense, most companies in the UK are created under statute since the Companies Act 1985 specifies how a company may be created by a member of the public, but these companies are not called 'statutory corporations'. Often, in American legal and business documents that speak of governing bodies (e.g., a board that governs small businesses in China) these bodies are described as "creatures of statute" to inform readers of their origins and format although the national governments that created them may not term them as creatures of statute. Australia also uses the term "creature of statute" to describe some governmental bodies.
The importance of a corporate body, regardless of its exact function, when such a body is a creature of statute is that its active functions can only be within the scope detailed by the statute which created that corporation. Thereby, the creature of statute is the tangible manifestation of the functions or work described by a given statute. The jurisdiction of a body that is a creature of statute is also therefore limited to the functional scope written into the laws that created that body. Unlike most (private) corporate bodies, creatures of statute cannot expand their business interests into other diverse areas. | [
{
"paragraph_id": 0,
"text": "A creature of statute (also known as creature of the state) is a legal entity, such as a corporation, created by statute. Creatures of statute may include municipalities and other artificial legal entities or relationships. Thus, when a statute in some fashion requires the formation of a corporate body—often for governmental purposes—such bodies when formed are known as \"creatures of statute.\" The same concept is also expressed with the phrase \"creature of the state.\"",
"title": ""
},
{
"paragraph_id": 1,
"text": "The term \"creature of statute\" is most common to the United States. In the United Kingdom, these bodies are simply called statutory corporations (or statutory bodies) and generally have some governmental function. The United Kingdom Atomic Energy Authority is an example. In a wider sense, most companies in the UK are created under statute since the Companies Act 1985 specifies how a company may be created by a member of the public, but these companies are not called 'statutory corporations'. Often, in American legal and business documents that speak of governing bodies (e.g., a board that governs small businesses in China) these bodies are described as \"creatures of statute\" to inform readers of their origins and format although the national governments that created them may not term them as creatures of statute. Australia also uses the term \"creature of statute\" to describe some governmental bodies.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The importance of a corporate body, regardless of its exact function, when such a body is a creature of statute is that its active functions can only be within the scope detailed by the statute which created that corporation. Thereby, the creature of statute is the tangible manifestation of the functions or work described by a given statute. The jurisdiction of a body that is a creature of statute is also therefore limited to the functional scope written into the laws that created that body. Unlike most (private) corporate bodies, creatures of statute cannot expand their business interests into other diverse areas.",
"title": ""
},
{
"paragraph_id": 3,
"text": "",
"title": "Notes"
}
] | A creature of statute is a legal entity, such as a corporation, created by statute. Creatures of statute may include municipalities and other artificial legal entities or relationships. Thus, when a statute in some fashion requires the formation of a corporate body—often for governmental purposes—such bodies when formed are known as "creatures of statute." The same concept is also expressed with the phrase "creature of the state." The term "creature of statute" is most common to the United States. In the United Kingdom, these bodies are simply called statutory corporations and generally have some governmental function. The United Kingdom Atomic Energy Authority is an example. In a wider sense, most companies in the UK are created under statute since the Companies Act 1985 specifies how a company may be created by a member of the public, but these companies are not called 'statutory corporations'. Often, in American legal and business documents that speak of governing bodies these bodies are described as "creatures of statute" to inform readers of their origins and format although the national governments that created them may not term them as creatures of statute. Australia also uses the term "creature of statute" to describe some governmental bodies. The importance of a corporate body, regardless of its exact function, when such a body is a creature of statute is that its active functions can only be within the scope detailed by the statute which created that corporation. Thereby, the creature of statute is the tangible manifestation of the functions or work described by a given statute. The jurisdiction of a body that is a creature of statute is also therefore limited to the functional scope written into the laws that created that body. Unlike most (private) corporate bodies, creatures of statute cannot expand their business interests into other diverse areas. | 2002-02-25T15:51:15Z | 2023-12-12T21:13:09Z | [
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7,339 | General Conference on Weights and Measures | The General Conference on Weights and Measures (GCWM; French: Conférence générale des poids et mesures, CGPM) is the supreme authority of the International Bureau of Weights and Measures (BIPM), the intergovernmental organization established in 1875 under the terms of the Metre Convention through which member states act together on matters related to measurement science and measurement standards. The CGPM is made up of delegates of the governments of the member states and observers from the Associates of the CGPM. It elects the International Committee for Weights and Measures (ICWM; Comité international des poids et mesures, CIPM) as the supervisory board of the BIPM to direct and supervise it.
Initially the Metre Convention was only concerned with the kilogram and the metre, but in 1921 the scope of the treaty was extended to accommodate all physical measurements and hence all aspects of the metric system. In 1960 the 11th CGPM approved the International System of Units, usually known as "SI".
The General Conference receives the report of the CIPM on work accomplished; it discusses and examines the arrangements required to ensure the propagation and improvement of the International System of Units (SI); it endorses the results of new fundamental metrological determinations and various scientific resolutions of international scope; and it decides all major issues concerning the organization and development of the BIPM, including its financial endowment.
The CGPM meets in Paris, usually once every four years. The 25th meeting of the CGPM took place from 18 to 20 November 2014, the 26th meeting of the CGPM took place in Versailles from 13 to 16 November 2018, and the 27th meeting of the CGPM took place from 15 to 18 November 2022.
On 20 May 1875 an international treaty known as the Convention du Mètre (Metre Convention) was signed by 17 states. This treaty established an international organisation, the Bureau international des poids et mesures (BIPM), has two governing organs:
The organization has a permanent laboratory and secretariat function (sometimes referred to as the Headquarters), the activities of which include the establishment of the basic standards and scales of the principal physical quantities and maintenance of the international prototype standards.
The CGPM acts on behalf of the governments of its members. In so doing, it elects members to the CIPM, receives reports from the CIPM which it passes on to the governments and national laboratories on member states, examines and where appropriate approves proposals from the CIPM in respect of changes to the International System of Units (SI), approves the budget for the BIPM (over €13 million in 2018) and it decides all major issues concerning the organization and development of the BIPM.
The structure is analogous to that of a stock corporation. The BIPM is the organisation, the CGPM is the general meeting of the shareholders, the CIPM is the board of directors appointed by the CGPM, and the staff at the site in Saint-Cloud perform the day-to-day work.
The CGPM recognises two classes of membership – full membership for those states that wish to participate in the activities of the BIPM and associate membership for those countries or economies that only wish to participate in the CIPM MRA program. Associate members have observer status at the CGPM. Since all formal liaison between the convention organisations and national governments is handled by the member state's ambassador to France, it is implicit that member states must have diplomatic relations with France, though during both world wars, nations that were at war with France retained their membership of the CGPM. CGPM meetings are chaired by the Président de l'Académie des Sciences de Paris.
Of the twenty countries that attended the Conference of the Metre in 1875, representatives of seventeen signed the convention on 20 May 1875. In April 1884, H. J. Chaney, Warden of Standards in London unofficially contacted the BIPM inquiring whether the BIPM would calibrate some metre standards that had been manufactured in the United Kingdom. Broch, director of the BIPM replied that he was not authorised to perform any such calibrations for non-member states. On 17 September 1884, the British Government signed the convention on behalf of the United Kingdom. This number grew to 21 in 1900, 32 in 1950, and 49 in 2001. As of 18 November 2022, there are 64 Member States and 36 Associate States and Economies of the General Conference (with year of partnership in parentheses):
Argentina (1877) Australia (1947) Austria (1875) Belarus (2020) Belgium (1875) Brazil (1921) Bulgaria (1911) Canada (1907) Chile (1908) China (1977) Colombia (2012) Costa Rica (2022) Croatia (2008) Czech Republic (1922) Denmark (1875) Ecuador (2019) Egypt (1962) Estonia (2021) Finland (1913) France (1875) Germany (1875) Greece (2001) Hungary (1925) India (1880) Indonesia (1960) Iran (1975) Iraq (2013) Ireland (1925) Israel (1985) Italy (1875) Japan (1885) Kazakhstan (2008) Kenya (2010) Lithuania (2015) Malaysia (2001) Mexico (1890) Montenegro (2018) Morocco (2019) Netherlands (1929) New Zealand (1991) Norway (1875) Pakistan (1973) Poland (1925) Portugal (1876) Romania (1884) Russia (1875) Saudi Arabia (2011) Serbia (2001) Singapore (1994) Slovakia (1922) Slovenia (2016) South Africa (1964) South Korea (1959) Spain (1875) Sweden (1875) Switzerland (1875) Thailand (1912) Tunisia (2012) Turkey (1875) Ukraine (2018) United Arab Emirates (2015) United Kingdom (1884) United States (1878) Uruguay (1908)
Cameroon (1970–2012) Dominican Republic (1954–2015) North Korea (1982–2012) Peru (1875–1956) Venezuela (1879–1907, 1960–2018)
At the 21st meeting of the CGPM in October 1999, the category of "associate" was created for states not yet BIPM members and for economic unions.
Albania (2007) Azerbaijan (2015) Bangladesh (2010) Bolivia (2008) Bosnia and Herzegovina (2011) Botswana (2012) Cambodia (2021) Caribbean Community (2005) Chinese Taipei (2002) Ethiopia (2018) Georgia (2008) Ghana (2009) Hong Kong (2000) Jamaica (2003) Kuwait (2018) Latvia (2001) Luxembourg (2014) Malta (2001) Mauritius (2010) Moldova (2007) Mongolia (2013) Namibia (2012) North Macedonia (2006) Oman (2012) Panama (2003) Paraguay (2009) Peru (2009) Philippines (2002) Qatar (2016) Sri Lanka (2007) Syria (2012) Tanzania (2018) Uzbekistan (2018) Vietnam (2003) Zambia (2010) Zimbabwe (2010–2020, 2022)
Cuba (2000–2021) Seychelles (2010–2021) Sudan (2014–2021)
The International Committee for Weights and Measures consists of eighteen persons, each of a different nationality. elected by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM.
The CIPM meets every year (since 2011 in two sessions per year) at the Pavillon de Breteuil where, among other matters, it discusses reports presented to it by its Consultative Committees. Reports of the meetings of the CGPM, the CIPM, and all the Consultative Committees, are published by the BIPM.
The secretariat is based in Saint-Cloud, Hauts-de-Seine, France.
In 1999 the CIPM has established the CIPM Arrangement de reconnaissance mutuelle (Mutual Recognition Arrangement, MRA) which serves as the framework for the mutual acceptance of national measurement standards and for recognition of the validity of calibration and measurement certificates issued by national metrology institutes.
A recent focus area of the CIPM has been the revision of the SI.
The CIPM has set up a number of consultative committees (CC) to assist it in its work. These committees are under the authority of the CIPM. The president of each committee, who is expected to take the chair at CC meetings, is usually a member of the CIPM. Apart from the CCU, membership of a CC is open to National Metrology Institutes (NMIs) of Member States that are recognized internationally as most expert in the field. NMIs from Member States that are active in the field, but lack the expertise to become Members, are able to attend CC meetings as observers.
These committees are:
The CCU's role is to advise on matters related to the development of the SI and the preparation of the SI brochure. It has liaison with other international bodies such as International Organization for Standardization (ISO), International Astronomical Union (IAU), International Union of Pure and Applied Chemistry (IUPAC), International Union of Pure and Applied Physics (IUPAP) and International Commission on Illumination (CIE).
Official reports of the CIPM include:
From time to time the CIPM has been charged by the CGPM to undertake major investigations related to activities affecting the CGPM or the BIPM. Reports produced include:
The Blevin Report, published in 1998, examined the state of worldwide metrology. The report originated from a resolution passed at the 20th CGPM (October 1995) which committed the CIPM to
study and report on the long-term national and international needs relating to metrology, the appropriate international collaborations and the unique role of the BIPM to meet these needs, and the financial and other commitments that will be required from the Member States in the coming decades.
The report identified, amongst other things, a need for closer cooperation between the BIPM and other organisations such as International Organization of Legal Metrology (OIML) and International Laboratory Accreditation Cooperation (ILAC) with clearly defined boundaries and interfaces between the organisations. Another major finding was the need for cooperation between accreditation laboratories and the need to involve developing countries in the world of metrology.
The Kaarls Report published in 2003 examined the role of the BIPM in the evolving needs for metrology in trade, industry and society.
The CIPM has responsibility for commissioning the SI brochure, which is the formal definition of the International system of units. The brochure is produced by the CCU in conjunction with a number of other international organisations. Initially the brochure was only in French – the official language of the metre convention, but recent versions have been published simultaneously in both English and French, with the French text being the official text. The 6th edition was published in 1991, the 7th edition was published in 1998, and the 8th, in 2006. The most recent edition is the 9th edition, originally published as version 1 in 2019 to include the 2019 redefinition of the SI base units (a.k.a. "new SI"); it was updated to version 2 in December 2022 to include the new SI prefixes ronna-, quetta-, ronto- and quecto- introduced in November 2022. | [
{
"paragraph_id": 0,
"text": "The General Conference on Weights and Measures (GCWM; French: Conférence générale des poids et mesures, CGPM) is the supreme authority of the International Bureau of Weights and Measures (BIPM), the intergovernmental organization established in 1875 under the terms of the Metre Convention through which member states act together on matters related to measurement science and measurement standards. The CGPM is made up of delegates of the governments of the member states and observers from the Associates of the CGPM. It elects the International Committee for Weights and Measures (ICWM; Comité international des poids et mesures, CIPM) as the supervisory board of the BIPM to direct and supervise it.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Initially the Metre Convention was only concerned with the kilogram and the metre, but in 1921 the scope of the treaty was extended to accommodate all physical measurements and hence all aspects of the metric system. In 1960 the 11th CGPM approved the International System of Units, usually known as \"SI\".",
"title": ""
},
{
"paragraph_id": 2,
"text": "The General Conference receives the report of the CIPM on work accomplished; it discusses and examines the arrangements required to ensure the propagation and improvement of the International System of Units (SI); it endorses the results of new fundamental metrological determinations and various scientific resolutions of international scope; and it decides all major issues concerning the organization and development of the BIPM, including its financial endowment.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The CGPM meets in Paris, usually once every four years. The 25th meeting of the CGPM took place from 18 to 20 November 2014, the 26th meeting of the CGPM took place in Versailles from 13 to 16 November 2018, and the 27th meeting of the CGPM took place from 15 to 18 November 2022.",
"title": ""
},
{
"paragraph_id": 4,
"text": "On 20 May 1875 an international treaty known as the Convention du Mètre (Metre Convention) was signed by 17 states. This treaty established an international organisation, the Bureau international des poids et mesures (BIPM), has two governing organs:",
"title": "Establishment"
},
{
"paragraph_id": 5,
"text": "The organization has a permanent laboratory and secretariat function (sometimes referred to as the Headquarters), the activities of which include the establishment of the basic standards and scales of the principal physical quantities and maintenance of the international prototype standards.",
"title": "Establishment"
},
{
"paragraph_id": 6,
"text": "The CGPM acts on behalf of the governments of its members. In so doing, it elects members to the CIPM, receives reports from the CIPM which it passes on to the governments and national laboratories on member states, examines and where appropriate approves proposals from the CIPM in respect of changes to the International System of Units (SI), approves the budget for the BIPM (over €13 million in 2018) and it decides all major issues concerning the organization and development of the BIPM.",
"title": "Establishment"
},
{
"paragraph_id": 7,
"text": "The structure is analogous to that of a stock corporation. The BIPM is the organisation, the CGPM is the general meeting of the shareholders, the CIPM is the board of directors appointed by the CGPM, and the staff at the site in Saint-Cloud perform the day-to-day work.",
"title": "Establishment"
},
{
"paragraph_id": 8,
"text": "The CGPM recognises two classes of membership – full membership for those states that wish to participate in the activities of the BIPM and associate membership for those countries or economies that only wish to participate in the CIPM MRA program. Associate members have observer status at the CGPM. Since all formal liaison between the convention organisations and national governments is handled by the member state's ambassador to France, it is implicit that member states must have diplomatic relations with France, though during both world wars, nations that were at war with France retained their membership of the CGPM. CGPM meetings are chaired by the Président de l'Académie des Sciences de Paris.",
"title": "Establishment"
},
{
"paragraph_id": 9,
"text": "Of the twenty countries that attended the Conference of the Metre in 1875, representatives of seventeen signed the convention on 20 May 1875. In April 1884, H. J. Chaney, Warden of Standards in London unofficially contacted the BIPM inquiring whether the BIPM would calibrate some metre standards that had been manufactured in the United Kingdom. Broch, director of the BIPM replied that he was not authorised to perform any such calibrations for non-member states. On 17 September 1884, the British Government signed the convention on behalf of the United Kingdom. This number grew to 21 in 1900, 32 in 1950, and 49 in 2001. As of 18 November 2022, there are 64 Member States and 36 Associate States and Economies of the General Conference (with year of partnership in parentheses):",
"title": "Establishment"
},
{
"paragraph_id": 10,
"text": "Argentina (1877) Australia (1947) Austria (1875) Belarus (2020) Belgium (1875) Brazil (1921) Bulgaria (1911) Canada (1907) Chile (1908) China (1977) Colombia (2012) Costa Rica (2022) Croatia (2008) Czech Republic (1922) Denmark (1875) Ecuador (2019) Egypt (1962) Estonia (2021) Finland (1913) France (1875) Germany (1875) Greece (2001) Hungary (1925) India (1880) Indonesia (1960) Iran (1975) Iraq (2013) Ireland (1925) Israel (1985) Italy (1875) Japan (1885) Kazakhstan (2008) Kenya (2010) Lithuania (2015) Malaysia (2001) Mexico (1890) Montenegro (2018) Morocco (2019) Netherlands (1929) New Zealand (1991) Norway (1875) Pakistan (1973) Poland (1925) Portugal (1876) Romania (1884) Russia (1875) Saudi Arabia (2011) Serbia (2001) Singapore (1994) Slovakia (1922) Slovenia (2016) South Africa (1964) South Korea (1959) Spain (1875) Sweden (1875) Switzerland (1875) Thailand (1912) Tunisia (2012) Turkey (1875) Ukraine (2018) United Arab Emirates (2015) United Kingdom (1884) United States (1878) Uruguay (1908)",
"title": "Establishment"
},
{
"paragraph_id": 11,
"text": "Cameroon (1970–2012) Dominican Republic (1954–2015) North Korea (1982–2012) Peru (1875–1956) Venezuela (1879–1907, 1960–2018)",
"title": "Establishment"
},
{
"paragraph_id": 12,
"text": "At the 21st meeting of the CGPM in October 1999, the category of \"associate\" was created for states not yet BIPM members and for economic unions.",
"title": "Establishment"
},
{
"paragraph_id": 13,
"text": "Albania (2007) Azerbaijan (2015) Bangladesh (2010) Bolivia (2008) Bosnia and Herzegovina (2011) Botswana (2012) Cambodia (2021) Caribbean Community (2005) Chinese Taipei (2002) Ethiopia (2018) Georgia (2008) Ghana (2009) Hong Kong (2000) Jamaica (2003) Kuwait (2018) Latvia (2001) Luxembourg (2014) Malta (2001) Mauritius (2010) Moldova (2007) Mongolia (2013) Namibia (2012) North Macedonia (2006) Oman (2012) Panama (2003) Paraguay (2009) Peru (2009) Philippines (2002) Qatar (2016) Sri Lanka (2007) Syria (2012) Tanzania (2018) Uzbekistan (2018) Vietnam (2003) Zambia (2010) Zimbabwe (2010–2020, 2022)",
"title": "Establishment"
},
{
"paragraph_id": 14,
"text": "Cuba (2000–2021) Seychelles (2010–2021) Sudan (2014–2021)",
"title": "Establishment"
},
{
"paragraph_id": 15,
"text": "The International Committee for Weights and Measures consists of eighteen persons, each of a different nationality. elected by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 16,
"text": "The CIPM meets every year (since 2011 in two sessions per year) at the Pavillon de Breteuil where, among other matters, it discusses reports presented to it by its Consultative Committees. Reports of the meetings of the CGPM, the CIPM, and all the Consultative Committees, are published by the BIPM.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 17,
"text": "The secretariat is based in Saint-Cloud, Hauts-de-Seine, France.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 18,
"text": "In 1999 the CIPM has established the CIPM Arrangement de reconnaissance mutuelle (Mutual Recognition Arrangement, MRA) which serves as the framework for the mutual acceptance of national measurement standards and for recognition of the validity of calibration and measurement certificates issued by national metrology institutes.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 19,
"text": "A recent focus area of the CIPM has been the revision of the SI.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 20,
"text": "The CIPM has set up a number of consultative committees (CC) to assist it in its work. These committees are under the authority of the CIPM. The president of each committee, who is expected to take the chair at CC meetings, is usually a member of the CIPM. Apart from the CCU, membership of a CC is open to National Metrology Institutes (NMIs) of Member States that are recognized internationally as most expert in the field. NMIs from Member States that are active in the field, but lack the expertise to become Members, are able to attend CC meetings as observers.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 21,
"text": "These committees are:",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 22,
"text": "The CCU's role is to advise on matters related to the development of the SI and the preparation of the SI brochure. It has liaison with other international bodies such as International Organization for Standardization (ISO), International Astronomical Union (IAU), International Union of Pure and Applied Chemistry (IUPAC), International Union of Pure and Applied Physics (IUPAP) and International Commission on Illumination (CIE).",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 23,
"text": "Official reports of the CIPM include:",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 24,
"text": "From time to time the CIPM has been charged by the CGPM to undertake major investigations related to activities affecting the CGPM or the BIPM. Reports produced include:",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 25,
"text": "The Blevin Report, published in 1998, examined the state of worldwide metrology. The report originated from a resolution passed at the 20th CGPM (October 1995) which committed the CIPM to",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 26,
"text": "study and report on the long-term national and international needs relating to metrology, the appropriate international collaborations and the unique role of the BIPM to meet these needs, and the financial and other commitments that will be required from the Member States in the coming decades.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 27,
"text": "The report identified, amongst other things, a need for closer cooperation between the BIPM and other organisations such as International Organization of Legal Metrology (OIML) and International Laboratory Accreditation Cooperation (ILAC) with clearly defined boundaries and interfaces between the organisations. Another major finding was the need for cooperation between accreditation laboratories and the need to involve developing countries in the world of metrology.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 28,
"text": "The Kaarls Report published in 2003 examined the role of the BIPM in the evolving needs for metrology in trade, industry and society.",
"title": " International Committee for Weights and Measures"
},
{
"paragraph_id": 29,
"text": "The CIPM has responsibility for commissioning the SI brochure, which is the formal definition of the International system of units. The brochure is produced by the CCU in conjunction with a number of other international organisations. Initially the brochure was only in French – the official language of the metre convention, but recent versions have been published simultaneously in both English and French, with the French text being the official text. The 6th edition was published in 1991, the 7th edition was published in 1998, and the 8th, in 2006. The most recent edition is the 9th edition, originally published as version 1 in 2019 to include the 2019 redefinition of the SI base units (a.k.a. \"new SI\"); it was updated to version 2 in December 2022 to include the new SI prefixes ronna-, quetta-, ronto- and quecto- introduced in November 2022.",
"title": " International Committee for Weights and Measures"
}
] | The General Conference on Weights and Measures is the supreme authority of the International Bureau of Weights and Measures (BIPM), the intergovernmental organization established in 1875 under the terms of the Metre Convention through which member states act together on matters related to measurement science and measurement standards. The CGPM is made up of delegates of the governments of the member states and observers from the Associates of the CGPM. It elects the International Committee for Weights and Measures as the supervisory board of the BIPM to direct and supervise it. Initially the Metre Convention was only concerned with the kilogram and the metre, but in 1921 the scope of the treaty was extended to accommodate all physical measurements and hence all aspects of the metric system. In 1960 the 11th CGPM approved the International System of Units, usually known as "SI". The General Conference receives the report of the CIPM on work accomplished; it discusses and examines the arrangements required to ensure the propagation and improvement of the International System of Units (SI); it endorses the results of new fundamental metrological determinations and various scientific resolutions of international scope; and it decides all major issues concerning the organization and development of the BIPM, including its financial endowment. The CGPM meets in Paris, usually once every four years. The 25th meeting of the CGPM took place from 18 to 20 November 2014, the 26th meeting of the CGPM took place in Versailles from 13 to 16 November 2018, and the 27th meeting of the CGPM took place from 15 to 18 November 2022. | 2001-12-04T20:58:59Z | 2023-12-25T10:38:43Z | [
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7,341 | Cowboy Bebop | Cowboy Bebop (Japanese: カウボーイビバップ, Hepburn: Kaubōi Bibappu) is a Japanese neo-noir space Western anime television series which aired on TV Tokyo and Wowow from 1998 to 1999. It was created and animated by Sunrise, led by a production team of director Shinichirō Watanabe, screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical designer Kimitoshi Yamane, and composer Yoko Kanno, who are collectively billed as Hajime Yatate.
The series, which ran for twenty-six episodes (dubbed "sessions"), is set in the year 2071, and follows the lives of a traveling bounty-hunting crew aboard a spaceship, the Bebop. Although it incorporates a wide variety of genres, the series draws most heavily from science fiction, Western, and noir films. Its most prominent themes are existential boredom, loneliness, and the inability to escape one's past.
The series was dubbed into English by Animaze and ZRO Limit Productions, and was originally licensed in North America by Bandai Entertainment (and is now licensed by Crunchyroll) and in Britain by Beez Entertainment (now by Anime Limited); Madman Entertainment owns the license in Australia and New Zealand. In 2001, it became the first anime title to be broadcast on Adult Swim.
Cowboy Bebop has been hailed as one of the best anime series of all time. It was a critical and commercial success both in Japanese and international markets, most notably in the United States. It garnered several major anime and science-fiction awards upon its release, and received acclaim from critics and audiences for its style, characters, story, voice acting, animation, and soundtrack. The English dub was particularly lauded and is regarded as one of the best anime English dubs. Credited with helping to introduce anime to a new wave of Western viewers in the early 2000s, Cowboy Bebop has also been called a gateway series for anime as a whole.
In 2071, roughly fifty years after an accident with a hyperspace gateway which made Earth almost uninhabitable, humanity has colonized most of the rocky planets and moons of the Solar System. Amid a rising crime rate, the Inter Solar System Police (ISSP) set up a legalized contract system, in which registered bounty hunters (also referred to as "Cowboys") chase criminals and bring them in alive in return for a reward. The series' protagonists are bounty-hunters working from the spaceship Bebop. The original crew are Spike Spiegel, an exiled former hitman of the criminal Red Dragon Syndicate, and Jet Black, a former ISSP officer. They are later joined by Faye Valentine, an amnesiac con artist; Edward, an eccentric child, skilled in hacking; and Ein, a genetically-engineered Pembroke Welsh Corgi with human-like intelligence. Over the course of the series, the team get involved in disastrous mishaps leaving them without money, while often confronting faces and events from their past: these include Jet's reasons for leaving the ISSP, and Faye's past as a young woman from Earth injured in an accident and cryogenically frozen to save her life.
While much of the show is episodic in nature, the main story arc focuses on Spike and his deadly rivalry with Vicious, an ambitious criminal affiliated with the Red Dragon Syndicate. Spike and Vicious were once partners and friends, but when Spike began an affair with Vicious's girlfriend Julia and resolved to leave the Syndicate with her, Vicious sought to eliminate Spike by blackmailing Julia into killing him. Julia goes into hiding to protect herself and Spike, while Spike fakes his death to escape the Syndicate. In the present, Julia comes out of hiding and reunites with Spike, intending to complete their plan. Vicious, having staged a coup d'état and taken over the Syndicate, sends hitmen after the pair. Julia is killed, leaving Spike alone. Spike leaves the Bebop after saying a final goodbye to Faye and Jet. Upon infiltrating the syndicate, he finds Vicious on the top floor of the building and confronts him after dispatching the remaining Red Dragon members. The final battle ends with Spike killing Vicious, only to be seriously wounded himself in the ensuing confrontation. Looking up to the sky, Spike sees Julia. The series concludes as Spike descends the main staircase of the building into the rising sun before eventually falling to the ground.
Watanabe created a special tagline for the series to promote it during its original presentation, calling it "a new genre unto itself". The line was inserted before and after commercial breaks during its Japanese and US broadcasts. Later, Watanabe called the phrase an "exaggeration". The show is a hybrid of multiple genres, including westerns and pulp fiction. One reviewer described it as "space opera meets noir, meets comedy, meets cyberpunk". It has also been called a "genre-busting space Western".
The musical style was emphasized in many of the episode titles. Multiple philosophical themes are explored using the characters, including existentialism, existential boredom, loneliness, and the effect of the past on the protagonists. Other concepts referenced include environmentalism and capitalism. The series also makes specific references to or pastiches multiple films, including the works of John Woo and Bruce Lee, Midnight Run, 2001: A Space Odyssey, and Alien. The series also includes extensive references and elements from science fiction, bearing strong similarities to the cyberpunk fiction of William Gibson. Several planets and space stations in the series are made in Earth's image. The streets of celestial objects such as Ganymede resemble a modern port city, while Mars features shopping malls, theme parks, casinos and cities. Cowboy Bebop's universe is filled with video players and hyperspace gates, eco-politics and fairgrounds, spaceships and Native American shamans. This setting has been described as "one part Chinese diaspora and two parts wild west".
The characters were created by Watanabe and character designed by Toshihiro Kawamoto. Watanabe envisioned each character as an extension of his own personality, or as an opposite person to himself. Each character, from the main cast to supporting characters, were designed to be outlaws unable to fit into society. Kawamoto designed the characters so they were easily distinguished from one another. All the main cast are characterized by a deep sense of loneliness or resignation to their fate and past. From the perspective of Brian Camp and Julie Davis, the main characters resemble the main characters of the anime series Lupin III, if only superficially, given their more troubled pasts and more complex personalities.
The show focuses on the character of Spike Spiegel (voiced by Kōichi Yamadera), an iconic space cowboy with green hair and often seen wearing a blue suit, with the overall theme of the series being Spike's past and its karmic effect on him. Spike was portrayed as someone who had lost his expectations for the future, having lost the woman he loved, and so was in a near-constant lethargy. Spike's artificial eye was included as Watanabe wanted his characters to have flaws. He was originally going to be given an eyepatch, but this decision was vetoed by producers.
Jet (voiced by Unshō Ishizuka) is shown as someone who lost confidence in his former life and has become cynical about the state of society. Spike and Jet were designed to be opposites, with Spike being thin and wearing smart attire, while Jet was bulky and wore more casual clothing. The clothing, which was dark in color, also reflected their states of mind. Faye Valentine, Edward Wong (voiced by Aoi Tada), and Ein joined the crew in later episodes. Their designs were intended to contrast against Spike. Faye was described by her voice actress Megumi Hayashibara as initially being an "ugly" woman, with her defining traits being her liveliness, sensuality and humanity. To emphasize her situation when first introduced, she was compared to Poker Alice, a famous Western figure.
Edward and Ein were the only main characters to have real-life models. The former had her behavior based on the antics of Yoko Kanno as observed by Watanabe when he first met her. While generally portrayed as carefree and eccentric, Edward is motivated by a sense of loneliness after being abandoned by her father. Kawamoto initially based Ein's design on a friend's pet corgi, later getting one himself to use as a motion model.
Cowboy Bebop was developed by animation studio Sunrise and created by Hajime Yatate, the well-known pseudonym for the collective contributions of Sunrise's animation staff. The leader of the series' creative team was director Shinichirō Watanabe, most notable at the time for directing Macross Plus and Mobile Suit Gundam 0083: Stardust Memory. Other leading members of Sunrise's creative team were screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical art designer Kimitoshi Yamane, composer Yoko Kanno, and producers Masahiko Minami and Yoshiyuki Takei. Most of them had previously worked together, in addition to having credits on other popular anime titles. Nobumoto had scripted Macross Plus, Kawamoto had designed the characters for Gundam, and Kanno had composed the music for Macross Plus and The Vision of Escaflowne. Yamane had not worked with Watanabe yet, but his credits in anime included Bubblegum Crisis and The Vision of Escaflowne. Minami joined the project as he wanted to do something different from his previous work on mecha anime.
Cowboy Bebop was Watanabe's first project as solo director, as he had been co-director in his previous works. His original concept was for a movie, and during production he treated each episode as a miniature movie. His main inspiration for Cowboy Bebop was the first series of the anime Lupin III, a crime drama focusing on the exploits of the series' titular character. When developing the series' story, Watanabe began by creating the characters first. He explained, "the first image that occurred to me was one of Spike, and from there I tried to build a story around him, trying to make him cool." While the original dialogue of the series was kept clean to avoid any profanities, its level of sophistication was made appropriate to adults in a criminal environment. Watanabe described Cowboy Bebop as "80% serious story and 20% humorous touch". The comical episodes were harder for the team to write than the serious ones, and though several events in them seemed random, they were carefully planned in advance. Watanabe conceived the series' ending early on, and each episode involving Spike and Vicious was meant to foreshadow their final confrontation. Some of the staff were unhappy about this approach as a continuation of the series would be difficult. While he considered altering the ending, he eventually settled with his original idea. The reason for creating the ending was that Watanabe did not want the series to become like Star Trek, with him being tied to doing it for years.
The project had initially originated with Bandai's toy division as a sponsor, with the goal of selling spacecraft toys. Watanabe recalled his only instruction was "So long as there's a spaceship in it, you can do whatever you want." But upon viewing early footage, it became clear that Watanabe's vision for the series did not match Bandai's. Believing the series would never sell toy merchandise, Bandai pulled out of the project, leaving it in development hell until sister company Bandai Visual stepped in to sponsor it. Since there was no need to merchandise toys with the property any more, Watanabe had free rein in the development of the series. Watanabe wanted to design not just a space adventure series for adolescent boys but a program that would also appeal to sophisticated adults. During the making of Bebop, Watanabe often attempted to rally the animation staff by telling them that the show would be something memorable up to three decades later. While some of them were doubtful of that at the time, Watanabe many years later expressed his happiness to have been proven right in retrospect. He joked that if Bandai Visual had not intervened then "you might be seeing me working the supermarket checkout counter right now."
The city locations were generally inspired by the cities of New York and Hong Kong. The atmospheres of the planets and the ethnic groups in Cowboy Bebop mostly originated from Watanabe's ideas, with some collaboration from set designers Isamu Imakake, Shoji Kawamori, and Dai Satō. The animation staff established the particular planet atmospheres early in the production of the series before working on the ethnic groups. It was Watanabe who wanted to have several groups of ethnic diversity appear in the series. Mars was the planet most often used in Cowboy Bebop's storylines, with Satoshi Toba, the cultural and setting producer, explaining that the other planets "were unexpectedly difficult to use". He stated that each planet in the series had unique features, and the producers had to take into account the characteristics of each planet in the story. For the final episode, Toba explained that it was not possible for the staff to have the dramatic rooftop scene occur on Venus, so the staff "ended up normally falling back to Mars". In creating the backstory, Watanabe envisioned a world that was "multinational rather than stateless". In spite of certain American influences in the series, he stipulated that the country had been destroyed decades prior to the story, later saying the notion of the United States as the center of the world repelled him.
The music for Cowboy Bebop was composed by Yoko Kanno. Kanno formed the blues and jazz band Seatbelts to perform the series' music. According to Kanno, the music was one of the first aspects of the series to begin production, before most of the characters, story, or animation had been finalized. The genres she used for its composition were western, opera, and jazz. Watanabe noted that Kanno did not score the music exactly the way he told her to. He stated, "She gets inspired on her own, follows up on her own imagery, and comes to me saying 'this is the song we need for Cowboy Bebop', and composes something completely on her own." Kanno herself was sometimes surprised at how pieces of her music were used in scenes, sometimes wishing it had been used elsewhere, though she also felt that none of their uses were "inappropriate". She was pleased with the working environment, finding the team very relaxed in comparison with other teams she had worked with.
Watanabe further explained that he would take inspiration from Kanno's music after listening to it and create new scenes for the story from it. These new scenes in turn would inspire Kanno and give her new ideas for the music and she would come to Watanabe with even more music. Watanabe cited as an example, "some songs in the second half of the series, we didn't even ask her for those songs, she just made them and brought them to us." He commented that while Kanno's method was normally "unforgivable and unacceptable", it was ultimately a "big hit" with Cowboy Bebop. Watanabe described his collaboration with Kanno as "a game of catch between the two of us in developing the music and creating the TV series Cowboy Bebop". Since the series' broadcast, Kanno and the Seatbelts have released seven original soundtrack albums, two singles and extended plays, and two compilations through label Victor Entertainment.
The guns on the show were chosen by the director, Watanabe, and in discussion with set designer, Isamu Imakake, and mechanical designer, Kimitoshi Yamane. Setting producer, Satoshi Toba said, "They talked about how they didn't want common guns, because that wouldn't be very interesting, and so they decided on these guns."
Cowboy Bebop debuted on TV Tokyo, one of the main broadcasters of anime in Japan, airing from April 3 until June 26, 1998. Due to its 6:00 p.m. timeslot and depictions of graphic violence, the show's first run only included episodes 2, 3, 7 to 15, 18 and a special. Later that year, the series was shown in its entirety from October 24 until April 24, 1999, on satellite network Wowow. The full series has also been broadcast across Japan by anime television network Animax, which has also aired the series via its respective networks across Southeast Asia, South Asia and East Asia.
The first non-Asian country to air Cowboy Bebop was Italy. There, it was first aired on October 21, 1999, on MTV, where it inaugurated the 9:00–10:30 p.m. Anime Night programming block.
In the United States, Cowboy Bebop was one of the programs shown when Cartoon Network's late night block Adult Swim debuted on September 2, 2001, being the first anime shown on the block that night at midnight ET. During its original run on Adult Swim, episodes 6, 8, and 22 were skipped due to their violent themes in wake of the September 11 attacks. By the third run of the series, all these episodes had premiered for the first time. Cowboy Bebop was successful enough to be broadcast repeatedly for four years. It has been run at least once every year since 2007, and HD remasters of the show began broadcasting in 2015. In the United Kingdom, it was first broadcast in 2002 on the adult-oriented channel CNX. From November 6, 2007, it was repeated on AnimeCentral until the channel's closure in August 2008. In Australia, Cowboy Bebop was first broadcast on pay television in 2002 on Adult Swim, and on free-to-air-TV on ABC2 (the national digital public television channel) on January 2, 2007. It has been repeated several times, most recently starting in 2008. Cowboy Bebop: The Movie also aired on February 23, 2009, on SBS (a hybrid-funded Australian public broadcasting television network). In Canada, Cowboy Bebop was first broadcast on December 24, 2006, on Razer.
In Latin America, the series was first broadcast on pay-TV in 2001 on Locomotion. It aired again on January 9, 2016 on I.Sat.
Cowboy Bebop has been released in four separate editions in North America.
The first release was sold in VHS format either as a box set or as seven individual tapes. The tapes were sold through Anime Village, a division of Bandai.
In the late 1990s, Manga Entertainment purchased the rights to Cowboy Bebop with plans to release the English-dubbed PAL version on VHS; however, this was never realized.
The second release was sold in 2000 individually, and featured uncut versions of the original 26 episodes. In 2001, these DVDs were collected in the special edition Perfect Sessions which included the first 6 DVDs, the first Cowboy Bebop soundtrack, and a collector's box. At the time of release, the art box from the Perfect Sessions was made available for purchase on The Right Stuff International as a solo item for collectors who already owned the series.
The third release, The Best Sessions, was sold in 2002 and featured what Bandai considered to be the best 6 episodes of the series remastered in Dolby Digital 5.1 and DTS surround sound.
The fourth release, Cowboy Bebop Remix, was also distributed on 6 discs and included the original 26 uncut episodes, with sound remastered in Dolby Digital 5.1 and video remastered under the supervision of Shinichiro Watanabe. This release also included various extras that were not present in the original release. Cowboy Bebop Remix was itself collected as the Cowboy Bebop Remix: The Complete Collection in 2008.
In December 2012, newly founded distributor Anime Limited announced via Facebook and Twitter that they had acquired the home video license for the United Kingdom. Part 1 of the Blu-ray collection was released on July 29, 2013, while Part 2 was released on October 14. The standard DVD Complete Collection was originally meant to be released on September 23, 2013 with Part 2 of the Blu-ray release but due to mastering and manufacturing errors, the Complete Collection was delayed until November 27. Following the closure of Bandai Entertainment in 2012, Funimation and Sunrise had announced that they rescued Cowboy Bebop, along with a handful of other former Bandai Entertainment properties, for home video and digital release. Funimation released the series on Blu-ray and DVD on December 16, 2014. The series was released in four separate editions: standard DVD, standard Blu-ray, an Amazon.com exclusive Blu-ray/DVD combo, and a Funimation.com exclusive Blu-ray/DVD combo.
Crunchyroll released a limited edition Blu-ray box set on April 4, 2023 for its 25th anniversary.
Netflix acquired the streaming rights to the original anime, with all 26 episodes available worldwide as of October 21, 2021. The series is also available on Hulu and Funimation in the United States. On March 1, 2022, the anime became available on Crunchyroll to consolidate both Funimation and Wakanim into the service.
Two Cowboy Bebop manga series adaptations have been released, both published by Kadokawa Shoten and serialized in Asuka Fantasy DX. The first manga series, titled Cowboy Bebop: Shooting Star and illustrated by Cain Kuga, was serialized from October issue 1997, before the anime series' release, to July issue 1998. It was collected into two volumes in 1998, the first one in May and the second one in September. The second manga series, simply titled Cowboy Bebop and illustrated by Yutaka Nanten [ja], was serialized from November issue 1998 to March issue 2000. It was collected into three volumes, the first two in April and October 1999 and the third one in April 2000. Both manga series were licensed by Tokyopop for release in North America.
A Cowboy Bebop video game, developed and published by Bandai, was released in Japan for the PlayStation on May 14, 1998. A PlayStation 2 video game, Cowboy Bebop: Tsuioku no Serenade, was released in Japan on August 25, 2005, and an English version had been set for release in North America. However, in January 2007, IGN reported that the release had likely been cancelled, speculating that it did not survive Bandai's merger with Namco to Bandai Namco Games.
In 2022, Cowboy Bebop made its debut in the Bandai Namco crossover game Super Robot Wars T, which is traditionally focused on turn based mecha combat.
An anime film titled Cowboy Bebop: Knockin' on Heaven's Door, (カウボーイビバップ 天国の扉, Kaubōi Bibappu: Tengoku no Tobira) known in English as Cowboy Bebop: The Movie, was released in Japan in September 2001 and in the United States in August 2002.
On July 22, 2008, If published an article on its website regarding a rumor of a live-action Cowboy Bebop movie in development by 20th Century Fox. Producer Erwin Stoff said that the film's development was in the early stages, and that they had "just signed it". Keanu Reeves was to play the role of Spike Spiegel. Variety confirmed on January 15, 2009 that production company Sunrise Animation would be "closely involved with the development of the English-language project". The site also confirmed Kenji Uchida, Shinichirō Watanabe and series writer Keiko Nobumoto as associate producers, series producer Masahiko Minami as a production consultant, and Peter Craig as screenwriter. This was lauded by various sources as a promising move for the potential quality of the film. At the time it was slated to release in 2011, but problems with the budget delayed its production. The submitted script was sent back for rewrite to reduce the cost and little has been heard about it since an interview with producer Joshua Long on October 15, 2010; the project currently languishes in development hell. On October 25, 2014, series director Watanabe was asked about the live-action film at the MCM London Comicon. He stated: "I'm afraid I don't know what they're thinking in Hollywood. Apparently the project hasn't come to a stop but I don't know how it's going to progress from here on. I hear that there are a lot of 'Hollywood' problems."
In 2017, it was announced that an American live-action adaptation of the series was being developed by Tomorrow Studios, a partnership between Marty Adelstein and ITV Studios, with executive production by Sunrise Inc. Christopher Yost was to write the series, and Netflix announced that it would distribute it. On April 4, 2019, Variety reported that John Cho, Mustafa Shakir, Daniella Pineda and Alex Hassell had been cast. Production was shut down in October 2019 due to a knee injury sustained by Cho, setting production back by more than six months. On April 17, 2020, it was revealed that the episodes would be an hour long. On May 19, 2020, Adelstein revealed that there were three finished episodes and that they had shot at least six episodes before Cho's knee injury. In the same interview it was revealed that the director of the anime series, Shinichirō Watanabe, had been hired as a creative consultant. Production in New Zealand resumed on September 30, 2020, following a COVID-19 lockdown in the country. The series was released on November 19, 2021 to mixed reviews. On December 9, 2021, it was announced that it would not be renewed for a second season, with Netflix cancelling it entirely.
An official side story titled Cowboy Bebop: UT tells the story of Ural and Victoria Terpsichore (V.T. from the session "Heavy Metal Queen") when they were bounty-hunters. The story was available in its own official site, however the website was closed and is currently available at the site mirror.
A deck-building board game, Cowboy Bebop: Space Serenade, was released in 2019.
Cowboy Bebop received unanimous acclaim, beginning at the time of its initial broadcast. Beginning in 1998, Japanese critic Keith Rhee highlighted the series as a standout in an otherwise "run-of-the-mill" season, praising its overall production values, and singling out Kanno's soundtrack as "a much-welcome change from all the sugary J-pop tunes of most anime features". Rhee also highlighted the show's Japanese "all-star cast", which his colleague Mark L. Johnson described as being filled with "veteran voice talent", turning in even greater performances than those of their "above average" US counterparts. In 1999, Australian magazine Hyper reviewed the anime and rated it 9.5 out of 10.
Anime News Network's Mike Crandol gave the series an 'A+' rating for the dubbed version, and an 'A' rating for the subbed version. He characterized the series as "one of the most popular and respected anime titles in history", before adding that it was "a unique television show which skillfully transcends all kinds of genres". Crandol praised its characters as "some of the most endearing characters to ever grace an anime", and commended the voice acting, especially the "flawless English cast". He also complimented the series' "movie-quality" animation, "sophisticated" writing, and its "incredible" musical score. Crandol hailed Cowboy Bebop as a "landmark" anime "that will be remembered long after many others have been forgotten", and went on to call it "one of the greatest anime titles ever". Additionally, Michael Toole of Anime News Network named Cowboy Bebop as one of the most important anime of the 1990s.
T.H.E.M. Anime Reviews gave the entire series a perfect score of 5 out of 5 stars, with reviewer Christina Carpenter believing Cowboy Bebop as "one of the best [anime]" and touting it as a masterpiece that "puts most anime...and Hollywood, to shame". She described it as a "very stylish, beautifully crafted series that deserves much more attention than it gets". Carpenter praised the animation as "a rarity and a marvel to behold" and that it was "beyond superb", and the plot and characterization as having "a sophistication and subtlety that is practically one-of-a-kind". She also praised the soundtrack, and hailed the opening theme as one of the best intro pieces she had ever heard. Carpenter went to say that Bebop was a "must-have for any serious collector of Japanese animation".
In his article "Asteroid Blues: The Lasting Legacy of Cowboy Bebop", The Atlantic writer Alex Suskind states, "On paper, Cowboy Bebop, the legendary cult anime series from Shinichirō Watanabe, reads like something John Wayne, Elmore Leonard, and Philip K. Dick came up with during a wild, all-night whiskey bender." He goes on to write, "The response from critics and fans may have sounded hyperbolic—the word 'masterpiece' was thrown around a great deal—but the praise was justified. First-time solo director Watanabe had created a gorgeous tale of morality, romance, and violence–a dark look at the lives of outlaws that's shot like an independent film."
In January 2015, television writer Kyle Mills of DVD Talk awarded the series five stars upon review. He stated, "Regardless of the medium, be it live action television, film, or animation, Cowboy Bebop is simply one of the finest examples of storytelling ever created." In his review, he describes the finale as "one of the best in television history", referring to it as a "widely revered" ending that "still sparks fan conversation, resonating with viewers 15 years on". He closes by writing, "Cowboy Bebop ends with a bang."
In his 2018 review of the series, Paste critic John Maher wrote, "It feels like a magnum opus produced at the pinnacle of a long career despite being, almost unbelievably, Watanabe's first series as a director. It is a masterwork that should justly rank among the best works of television of all time." It was also placed at #1 on the publication's list of the "50 Best Anime Series of All Time".
On review aggregator Rotten Tomatoes, the series has an approval rating of 100% based on 23 reviews, with an average rating of 8/10. The website's critical consensus reads, "Blending a head-spinning array of genres and references, Cowboy Bebop is an anime television classic that must be experienced."
In an April 2019 interview with Diego Molano, creator of Victor & Valentino, he said that Cowboy Bebop was the first anime he "obsessed over", as he spent time tracking down VHS tapes of the show in high school. He also argued that this series showed him "how cinematic and emotional animation can be".
In the 1999 Anime Grand Prix awards for the anime of 1998, Cowboy Bebop won two first place awards: Spike Spiegel was awarded the best male character; and Megumi Hayashibara was awarded the best voice actor for her role as Faye Valentine. Cowboy Bebop also received rankings in other categories: the series itself was awarded the second best anime series; Faye Valentine and Ed were ranked the fifth and ninth best female characters respectively; "Tank!" and "The Real Folk Blues" were ranked the third and fifteenth best songs respectively; and "Ballad of Fallen Angels", "Speak Like a Child", "Jamming with Edward" and "Mish-Mash Blues" were ranked the second, eighth, eighteenth and 20th best episodes respectively.
In the 2000 Anime Grand Prix awards for the anime of 1999, Cowboy Bebop won the same two first place awards again: best male character for Spike Spiegel; and best voice actor for Megumi Hayashibara. Other rankings the series received are: second best anime series; sixth best female character for Faye Valentine; seventh and twelfth best song for "Tank!" and "Blue" respectively; and third and seventeenth best episode for "The Real Folk Blues (Part 2)" and "Hard Luck Woman" respectively. In the 2000 Seiun Awards, Cowboy Bebop was awarded for Best Media of the Year.
A 2004 poll in Newtype USA, the US edition of the Japanese magazine Newtype, asked its readers to vote the "Top 25 Anime Titles of All Time"; Cowboy Bebop ranked second on the list (after Neon Genesis Evangelion), placing it as one of the most socially relevant and influential anime series ever created. During that same year, Cinefantastique listed the anime as one of the "10 Essential Animations", citing the series' "gleeful mix of noir-style, culture-hopping inclusiveness and music". In 2007, the American Anime magazine Anime Insider listed the "50 Best Anime Ever" by compiling lists of industry regulars and magazine staff, and ranked Cowboy Bebop as the #1 anime of all time. In 2012, Madman Entertainment compiled the votes of fans online for "The Top 20 Madman Anime Titles" and ranked Cowboy Bebop at seventh.
Cowboy Bebop has been featured in several lists published by IGN. In the 2009 "Top 100 Animated TV Series" list, Cowboy Bebop, labelled as "a very original – and arguably one of the best – anime", was placed fourteenth, making it the second highest ranking anime on the list (after Evangelion) and one of the most influential series of the 1990s. In 2011, Bebop was ranked 29th in the "Top 50 Sci-Fi TV Shows" list, once again being the second highest ranking anime on the list (after Evangelion). In 2006, Cowboy Bebop's soundtrack was ranked first in "Top Ten Anime Themes and Soundtracks of All-Time" list, with the series being commented as "one of the best anime ever and certainly is tops when it comes to music." Spike Spiegel was ranked fourth place in the "Top 25 Anime Characters of All Time" article. IGN Movies also placed Cowboy Bebop in their list of "10 Cartoon Adaptations We'd Like to See".
The series has been subject to study and analysis since its debut, with the main focus being on its style and mixture of genres. Miguel Douglas, describing the series style in a review, said that "the series distinctly establishes itself outside the realm of conventional Japanese animation and instead chooses to forge its own path. With a setting within the realm of science fiction, the series wisely offers a world that seems entirely realistic considering our present time. Free from many of the elements that accompany science fiction in general—whether that be space aliens, giant robots, or laser guns—the series delegates itself towards presenting a world that is quite similar to our own albeit showcasing some technological advances. Certainly not as pristine a future we would see in other series or films, Cowboy Bebop decides to deliver a future that closely reflects that of our own time. This aspect of familiarity does wonders in terms of relating to the viewer, and it presents a world that certainly resembles our very own." Daryl Surat of Otaku USA, commenting on the series' appeal, said that it was "that rare breed of science-fiction: 'accessible'. Unlike many anime titles, viewers weren't expected to have knowledge of Japanese culture—character names, signs, and the like were primarily in English to begin with—or have seen any other anime series prior." Michelle Onley Pirkle, in her book Science Fiction Film, Television, and Adaptation: Across the Screens, said that "Cowboy Bebop is taking a new take on genre, not by creating unique images and sounds, but by playing 'freely' with, 'remixing', or adapting the images and sounds of other familiar genres in a dynamic way." Robert Baigent, writing for the Graduate Journal of Asia-Pacific Studies, said that the series' appeal likely stemmed from the trend in anime to emulate Western fiction.
In March 2009, the print and web editions of The Onion's The A.V. Club called Cowboy Bebop "rightly a huge hit", and listed it as a gateway series to understanding the medium of anime as a whole. Suskind said: "It was unlike anything the genre had seen before. It even approached its music differently. The show kicked off with a wormhole of a theme song, and the soundtrack moves so seamlessly through genres, from rock to country to pop to jazz to funk, it's shocking to learn that one set of musicians is behind it all". In an interview, producer Sean Akins also states that the series "created a whole new world". "It's hard for me to quantify the impact that I think it has had. It changed anime. I think people began to think about what shows would be cool. I think it redefined cool within animation, not only in Japan but in the States". One of the series' main animators, Tensai Okamura, went on to create his own anime in 2007: Darker than Black. Okamura used his experience from Cowboy Bebop to write the screenplay of Darker than Black, leading to narratives composed of two episodes similar to Japanese dramas.
American film director, screenwriter, and producer Rian Johnson has cited Cowboy Bebop as a visual influence on his films, most notably Brick. Ender's Game writer Orson Scott Card also praised the series. He states that the series is "better than most sci-fi films out there". He goes on to say that he "found this series brilliant, but what held me was a combination of strong relationship-based storytelling, a moody visual style that never got old and really smart dialogue".
After the creation of the series, an interviewer asked Watanabe if he had any plans to create more Cowboy Bebop material. Watanabe responded by saying that he does not believe that he "should just keep on making Cowboy Bebop sequels for the sake of it". Watanabe added that ending production and "to quit while we're ahead when people still want more" is more "in keeping with the Bebop spirit". In a more recent interview from 2006 with The Daily Texan, Watanabe was asked if there would ever be more Cowboy Bebop. Watanabe's answer was "someday...maybe, someday".
In May 2020, composer Mason Lieberman, who has never actually seen Cowboy Bebop, partnered with Sunrise and Funimation to produce an official Cowboy Bebop charity track for COVID-19 relief. This track was released on vinyl and featured the return of original series composer Yōko Kanno, original recording band The Seatbelts, and a collection of forty other special musical guests. | [
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"text": "Cowboy Bebop (Japanese: カウボーイビバップ, Hepburn: Kaubōi Bibappu) is a Japanese neo-noir space Western anime television series which aired on TV Tokyo and Wowow from 1998 to 1999. It was created and animated by Sunrise, led by a production team of director Shinichirō Watanabe, screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical designer Kimitoshi Yamane, and composer Yoko Kanno, who are collectively billed as Hajime Yatate.",
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"text": "The series, which ran for twenty-six episodes (dubbed \"sessions\"), is set in the year 2071, and follows the lives of a traveling bounty-hunting crew aboard a spaceship, the Bebop. Although it incorporates a wide variety of genres, the series draws most heavily from science fiction, Western, and noir films. Its most prominent themes are existential boredom, loneliness, and the inability to escape one's past.",
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"paragraph_id": 2,
"text": "The series was dubbed into English by Animaze and ZRO Limit Productions, and was originally licensed in North America by Bandai Entertainment (and is now licensed by Crunchyroll) and in Britain by Beez Entertainment (now by Anime Limited); Madman Entertainment owns the license in Australia and New Zealand. In 2001, it became the first anime title to be broadcast on Adult Swim.",
"title": ""
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"paragraph_id": 3,
"text": "Cowboy Bebop has been hailed as one of the best anime series of all time. It was a critical and commercial success both in Japanese and international markets, most notably in the United States. It garnered several major anime and science-fiction awards upon its release, and received acclaim from critics and audiences for its style, characters, story, voice acting, animation, and soundtrack. The English dub was particularly lauded and is regarded as one of the best anime English dubs. Credited with helping to introduce anime to a new wave of Western viewers in the early 2000s, Cowboy Bebop has also been called a gateway series for anime as a whole.",
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"text": "In 2071, roughly fifty years after an accident with a hyperspace gateway which made Earth almost uninhabitable, humanity has colonized most of the rocky planets and moons of the Solar System. Amid a rising crime rate, the Inter Solar System Police (ISSP) set up a legalized contract system, in which registered bounty hunters (also referred to as \"Cowboys\") chase criminals and bring them in alive in return for a reward. The series' protagonists are bounty-hunters working from the spaceship Bebop. The original crew are Spike Spiegel, an exiled former hitman of the criminal Red Dragon Syndicate, and Jet Black, a former ISSP officer. They are later joined by Faye Valentine, an amnesiac con artist; Edward, an eccentric child, skilled in hacking; and Ein, a genetically-engineered Pembroke Welsh Corgi with human-like intelligence. Over the course of the series, the team get involved in disastrous mishaps leaving them without money, while often confronting faces and events from their past: these include Jet's reasons for leaving the ISSP, and Faye's past as a young woman from Earth injured in an accident and cryogenically frozen to save her life.",
"title": "Plot"
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"text": "While much of the show is episodic in nature, the main story arc focuses on Spike and his deadly rivalry with Vicious, an ambitious criminal affiliated with the Red Dragon Syndicate. Spike and Vicious were once partners and friends, but when Spike began an affair with Vicious's girlfriend Julia and resolved to leave the Syndicate with her, Vicious sought to eliminate Spike by blackmailing Julia into killing him. Julia goes into hiding to protect herself and Spike, while Spike fakes his death to escape the Syndicate. In the present, Julia comes out of hiding and reunites with Spike, intending to complete their plan. Vicious, having staged a coup d'état and taken over the Syndicate, sends hitmen after the pair. Julia is killed, leaving Spike alone. Spike leaves the Bebop after saying a final goodbye to Faye and Jet. Upon infiltrating the syndicate, he finds Vicious on the top floor of the building and confronts him after dispatching the remaining Red Dragon members. The final battle ends with Spike killing Vicious, only to be seriously wounded himself in the ensuing confrontation. Looking up to the sky, Spike sees Julia. The series concludes as Spike descends the main staircase of the building into the rising sun before eventually falling to the ground.",
"title": "Plot"
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"paragraph_id": 6,
"text": "Watanabe created a special tagline for the series to promote it during its original presentation, calling it \"a new genre unto itself\". The line was inserted before and after commercial breaks during its Japanese and US broadcasts. Later, Watanabe called the phrase an \"exaggeration\". The show is a hybrid of multiple genres, including westerns and pulp fiction. One reviewer described it as \"space opera meets noir, meets comedy, meets cyberpunk\". It has also been called a \"genre-busting space Western\".",
"title": "Genre and themes"
},
{
"paragraph_id": 7,
"text": "The musical style was emphasized in many of the episode titles. Multiple philosophical themes are explored using the characters, including existentialism, existential boredom, loneliness, and the effect of the past on the protagonists. Other concepts referenced include environmentalism and capitalism. The series also makes specific references to or pastiches multiple films, including the works of John Woo and Bruce Lee, Midnight Run, 2001: A Space Odyssey, and Alien. The series also includes extensive references and elements from science fiction, bearing strong similarities to the cyberpunk fiction of William Gibson. Several planets and space stations in the series are made in Earth's image. The streets of celestial objects such as Ganymede resemble a modern port city, while Mars features shopping malls, theme parks, casinos and cities. Cowboy Bebop's universe is filled with video players and hyperspace gates, eco-politics and fairgrounds, spaceships and Native American shamans. This setting has been described as \"one part Chinese diaspora and two parts wild west\".",
"title": "Genre and themes"
},
{
"paragraph_id": 8,
"text": "The characters were created by Watanabe and character designed by Toshihiro Kawamoto. Watanabe envisioned each character as an extension of his own personality, or as an opposite person to himself. Each character, from the main cast to supporting characters, were designed to be outlaws unable to fit into society. Kawamoto designed the characters so they were easily distinguished from one another. All the main cast are characterized by a deep sense of loneliness or resignation to their fate and past. From the perspective of Brian Camp and Julie Davis, the main characters resemble the main characters of the anime series Lupin III, if only superficially, given their more troubled pasts and more complex personalities.",
"title": "Genre and themes"
},
{
"paragraph_id": 9,
"text": "The show focuses on the character of Spike Spiegel (voiced by Kōichi Yamadera), an iconic space cowboy with green hair and often seen wearing a blue suit, with the overall theme of the series being Spike's past and its karmic effect on him. Spike was portrayed as someone who had lost his expectations for the future, having lost the woman he loved, and so was in a near-constant lethargy. Spike's artificial eye was included as Watanabe wanted his characters to have flaws. He was originally going to be given an eyepatch, but this decision was vetoed by producers.",
"title": "Genre and themes"
},
{
"paragraph_id": 10,
"text": "Jet (voiced by Unshō Ishizuka) is shown as someone who lost confidence in his former life and has become cynical about the state of society. Spike and Jet were designed to be opposites, with Spike being thin and wearing smart attire, while Jet was bulky and wore more casual clothing. The clothing, which was dark in color, also reflected their states of mind. Faye Valentine, Edward Wong (voiced by Aoi Tada), and Ein joined the crew in later episodes. Their designs were intended to contrast against Spike. Faye was described by her voice actress Megumi Hayashibara as initially being an \"ugly\" woman, with her defining traits being her liveliness, sensuality and humanity. To emphasize her situation when first introduced, she was compared to Poker Alice, a famous Western figure.",
"title": "Genre and themes"
},
{
"paragraph_id": 11,
"text": "Edward and Ein were the only main characters to have real-life models. The former had her behavior based on the antics of Yoko Kanno as observed by Watanabe when he first met her. While generally portrayed as carefree and eccentric, Edward is motivated by a sense of loneliness after being abandoned by her father. Kawamoto initially based Ein's design on a friend's pet corgi, later getting one himself to use as a motion model.",
"title": "Genre and themes"
},
{
"paragraph_id": 12,
"text": "Cowboy Bebop was developed by animation studio Sunrise and created by Hajime Yatate, the well-known pseudonym for the collective contributions of Sunrise's animation staff. The leader of the series' creative team was director Shinichirō Watanabe, most notable at the time for directing Macross Plus and Mobile Suit Gundam 0083: Stardust Memory. Other leading members of Sunrise's creative team were screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical art designer Kimitoshi Yamane, composer Yoko Kanno, and producers Masahiko Minami and Yoshiyuki Takei. Most of them had previously worked together, in addition to having credits on other popular anime titles. Nobumoto had scripted Macross Plus, Kawamoto had designed the characters for Gundam, and Kanno had composed the music for Macross Plus and The Vision of Escaflowne. Yamane had not worked with Watanabe yet, but his credits in anime included Bubblegum Crisis and The Vision of Escaflowne. Minami joined the project as he wanted to do something different from his previous work on mecha anime.",
"title": "Production"
},
{
"paragraph_id": 13,
"text": "Cowboy Bebop was Watanabe's first project as solo director, as he had been co-director in his previous works. His original concept was for a movie, and during production he treated each episode as a miniature movie. His main inspiration for Cowboy Bebop was the first series of the anime Lupin III, a crime drama focusing on the exploits of the series' titular character. When developing the series' story, Watanabe began by creating the characters first. He explained, \"the first image that occurred to me was one of Spike, and from there I tried to build a story around him, trying to make him cool.\" While the original dialogue of the series was kept clean to avoid any profanities, its level of sophistication was made appropriate to adults in a criminal environment. Watanabe described Cowboy Bebop as \"80% serious story and 20% humorous touch\". The comical episodes were harder for the team to write than the serious ones, and though several events in them seemed random, they were carefully planned in advance. Watanabe conceived the series' ending early on, and each episode involving Spike and Vicious was meant to foreshadow their final confrontation. Some of the staff were unhappy about this approach as a continuation of the series would be difficult. While he considered altering the ending, he eventually settled with his original idea. The reason for creating the ending was that Watanabe did not want the series to become like Star Trek, with him being tied to doing it for years.",
"title": "Production"
},
{
"paragraph_id": 14,
"text": "The project had initially originated with Bandai's toy division as a sponsor, with the goal of selling spacecraft toys. Watanabe recalled his only instruction was \"So long as there's a spaceship in it, you can do whatever you want.\" But upon viewing early footage, it became clear that Watanabe's vision for the series did not match Bandai's. Believing the series would never sell toy merchandise, Bandai pulled out of the project, leaving it in development hell until sister company Bandai Visual stepped in to sponsor it. Since there was no need to merchandise toys with the property any more, Watanabe had free rein in the development of the series. Watanabe wanted to design not just a space adventure series for adolescent boys but a program that would also appeal to sophisticated adults. During the making of Bebop, Watanabe often attempted to rally the animation staff by telling them that the show would be something memorable up to three decades later. While some of them were doubtful of that at the time, Watanabe many years later expressed his happiness to have been proven right in retrospect. He joked that if Bandai Visual had not intervened then \"you might be seeing me working the supermarket checkout counter right now.\"",
"title": "Production"
},
{
"paragraph_id": 15,
"text": "The city locations were generally inspired by the cities of New York and Hong Kong. The atmospheres of the planets and the ethnic groups in Cowboy Bebop mostly originated from Watanabe's ideas, with some collaboration from set designers Isamu Imakake, Shoji Kawamori, and Dai Satō. The animation staff established the particular planet atmospheres early in the production of the series before working on the ethnic groups. It was Watanabe who wanted to have several groups of ethnic diversity appear in the series. Mars was the planet most often used in Cowboy Bebop's storylines, with Satoshi Toba, the cultural and setting producer, explaining that the other planets \"were unexpectedly difficult to use\". He stated that each planet in the series had unique features, and the producers had to take into account the characteristics of each planet in the story. For the final episode, Toba explained that it was not possible for the staff to have the dramatic rooftop scene occur on Venus, so the staff \"ended up normally falling back to Mars\". In creating the backstory, Watanabe envisioned a world that was \"multinational rather than stateless\". In spite of certain American influences in the series, he stipulated that the country had been destroyed decades prior to the story, later saying the notion of the United States as the center of the world repelled him.",
"title": "Production"
},
{
"paragraph_id": 16,
"text": "The music for Cowboy Bebop was composed by Yoko Kanno. Kanno formed the blues and jazz band Seatbelts to perform the series' music. According to Kanno, the music was one of the first aspects of the series to begin production, before most of the characters, story, or animation had been finalized. The genres she used for its composition were western, opera, and jazz. Watanabe noted that Kanno did not score the music exactly the way he told her to. He stated, \"She gets inspired on her own, follows up on her own imagery, and comes to me saying 'this is the song we need for Cowboy Bebop', and composes something completely on her own.\" Kanno herself was sometimes surprised at how pieces of her music were used in scenes, sometimes wishing it had been used elsewhere, though she also felt that none of their uses were \"inappropriate\". She was pleased with the working environment, finding the team very relaxed in comparison with other teams she had worked with.",
"title": "Production"
},
{
"paragraph_id": 17,
"text": "Watanabe further explained that he would take inspiration from Kanno's music after listening to it and create new scenes for the story from it. These new scenes in turn would inspire Kanno and give her new ideas for the music and she would come to Watanabe with even more music. Watanabe cited as an example, \"some songs in the second half of the series, we didn't even ask her for those songs, she just made them and brought them to us.\" He commented that while Kanno's method was normally \"unforgivable and unacceptable\", it was ultimately a \"big hit\" with Cowboy Bebop. Watanabe described his collaboration with Kanno as \"a game of catch between the two of us in developing the music and creating the TV series Cowboy Bebop\". Since the series' broadcast, Kanno and the Seatbelts have released seven original soundtrack albums, two singles and extended plays, and two compilations through label Victor Entertainment.",
"title": "Production"
},
{
"paragraph_id": 18,
"text": "The guns on the show were chosen by the director, Watanabe, and in discussion with set designer, Isamu Imakake, and mechanical designer, Kimitoshi Yamane. Setting producer, Satoshi Toba said, \"They talked about how they didn't want common guns, because that wouldn't be very interesting, and so they decided on these guns.\"",
"title": "Production"
},
{
"paragraph_id": 19,
"text": "Cowboy Bebop debuted on TV Tokyo, one of the main broadcasters of anime in Japan, airing from April 3 until June 26, 1998. Due to its 6:00 p.m. timeslot and depictions of graphic violence, the show's first run only included episodes 2, 3, 7 to 15, 18 and a special. Later that year, the series was shown in its entirety from October 24 until April 24, 1999, on satellite network Wowow. The full series has also been broadcast across Japan by anime television network Animax, which has also aired the series via its respective networks across Southeast Asia, South Asia and East Asia.",
"title": "Distribution"
},
{
"paragraph_id": 20,
"text": "The first non-Asian country to air Cowboy Bebop was Italy. There, it was first aired on October 21, 1999, on MTV, where it inaugurated the 9:00–10:30 p.m. Anime Night programming block.",
"title": "Distribution"
},
{
"paragraph_id": 21,
"text": "In the United States, Cowboy Bebop was one of the programs shown when Cartoon Network's late night block Adult Swim debuted on September 2, 2001, being the first anime shown on the block that night at midnight ET. During its original run on Adult Swim, episodes 6, 8, and 22 were skipped due to their violent themes in wake of the September 11 attacks. By the third run of the series, all these episodes had premiered for the first time. Cowboy Bebop was successful enough to be broadcast repeatedly for four years. It has been run at least once every year since 2007, and HD remasters of the show began broadcasting in 2015. In the United Kingdom, it was first broadcast in 2002 on the adult-oriented channel CNX. From November 6, 2007, it was repeated on AnimeCentral until the channel's closure in August 2008. In Australia, Cowboy Bebop was first broadcast on pay television in 2002 on Adult Swim, and on free-to-air-TV on ABC2 (the national digital public television channel) on January 2, 2007. It has been repeated several times, most recently starting in 2008. Cowboy Bebop: The Movie also aired on February 23, 2009, on SBS (a hybrid-funded Australian public broadcasting television network). In Canada, Cowboy Bebop was first broadcast on December 24, 2006, on Razer.",
"title": "Distribution"
},
{
"paragraph_id": 22,
"text": "In Latin America, the series was first broadcast on pay-TV in 2001 on Locomotion. It aired again on January 9, 2016 on I.Sat.",
"title": "Distribution"
},
{
"paragraph_id": 23,
"text": "Cowboy Bebop has been released in four separate editions in North America.",
"title": "Distribution"
},
{
"paragraph_id": 24,
"text": "The first release was sold in VHS format either as a box set or as seven individual tapes. The tapes were sold through Anime Village, a division of Bandai.",
"title": "Distribution"
},
{
"paragraph_id": 25,
"text": "In the late 1990s, Manga Entertainment purchased the rights to Cowboy Bebop with plans to release the English-dubbed PAL version on VHS; however, this was never realized.",
"title": "Distribution"
},
{
"paragraph_id": 26,
"text": "The second release was sold in 2000 individually, and featured uncut versions of the original 26 episodes. In 2001, these DVDs were collected in the special edition Perfect Sessions which included the first 6 DVDs, the first Cowboy Bebop soundtrack, and a collector's box. At the time of release, the art box from the Perfect Sessions was made available for purchase on The Right Stuff International as a solo item for collectors who already owned the series.",
"title": "Distribution"
},
{
"paragraph_id": 27,
"text": "The third release, The Best Sessions, was sold in 2002 and featured what Bandai considered to be the best 6 episodes of the series remastered in Dolby Digital 5.1 and DTS surround sound.",
"title": "Distribution"
},
{
"paragraph_id": 28,
"text": "The fourth release, Cowboy Bebop Remix, was also distributed on 6 discs and included the original 26 uncut episodes, with sound remastered in Dolby Digital 5.1 and video remastered under the supervision of Shinichiro Watanabe. This release also included various extras that were not present in the original release. Cowboy Bebop Remix was itself collected as the Cowboy Bebop Remix: The Complete Collection in 2008.",
"title": "Distribution"
},
{
"paragraph_id": 29,
"text": "In December 2012, newly founded distributor Anime Limited announced via Facebook and Twitter that they had acquired the home video license for the United Kingdom. Part 1 of the Blu-ray collection was released on July 29, 2013, while Part 2 was released on October 14. The standard DVD Complete Collection was originally meant to be released on September 23, 2013 with Part 2 of the Blu-ray release but due to mastering and manufacturing errors, the Complete Collection was delayed until November 27. Following the closure of Bandai Entertainment in 2012, Funimation and Sunrise had announced that they rescued Cowboy Bebop, along with a handful of other former Bandai Entertainment properties, for home video and digital release. Funimation released the series on Blu-ray and DVD on December 16, 2014. The series was released in four separate editions: standard DVD, standard Blu-ray, an Amazon.com exclusive Blu-ray/DVD combo, and a Funimation.com exclusive Blu-ray/DVD combo.",
"title": "Distribution"
},
{
"paragraph_id": 30,
"text": "Crunchyroll released a limited edition Blu-ray box set on April 4, 2023 for its 25th anniversary.",
"title": "Distribution"
},
{
"paragraph_id": 31,
"text": "Netflix acquired the streaming rights to the original anime, with all 26 episodes available worldwide as of October 21, 2021. The series is also available on Hulu and Funimation in the United States. On March 1, 2022, the anime became available on Crunchyroll to consolidate both Funimation and Wakanim into the service.",
"title": "Distribution"
},
{
"paragraph_id": 32,
"text": "Two Cowboy Bebop manga series adaptations have been released, both published by Kadokawa Shoten and serialized in Asuka Fantasy DX. The first manga series, titled Cowboy Bebop: Shooting Star and illustrated by Cain Kuga, was serialized from October issue 1997, before the anime series' release, to July issue 1998. It was collected into two volumes in 1998, the first one in May and the second one in September. The second manga series, simply titled Cowboy Bebop and illustrated by Yutaka Nanten [ja], was serialized from November issue 1998 to March issue 2000. It was collected into three volumes, the first two in April and October 1999 and the third one in April 2000. Both manga series were licensed by Tokyopop for release in North America.",
"title": "Related media"
},
{
"paragraph_id": 33,
"text": "A Cowboy Bebop video game, developed and published by Bandai, was released in Japan for the PlayStation on May 14, 1998. A PlayStation 2 video game, Cowboy Bebop: Tsuioku no Serenade, was released in Japan on August 25, 2005, and an English version had been set for release in North America. However, in January 2007, IGN reported that the release had likely been cancelled, speculating that it did not survive Bandai's merger with Namco to Bandai Namco Games.",
"title": "Related media"
},
{
"paragraph_id": 34,
"text": "In 2022, Cowboy Bebop made its debut in the Bandai Namco crossover game Super Robot Wars T, which is traditionally focused on turn based mecha combat.",
"title": "Related media"
},
{
"paragraph_id": 35,
"text": "An anime film titled Cowboy Bebop: Knockin' on Heaven's Door, (カウボーイビバップ 天国の扉, Kaubōi Bibappu: Tengoku no Tobira) known in English as Cowboy Bebop: The Movie, was released in Japan in September 2001 and in the United States in August 2002.",
"title": "Related media"
},
{
"paragraph_id": 36,
"text": "On July 22, 2008, If published an article on its website regarding a rumor of a live-action Cowboy Bebop movie in development by 20th Century Fox. Producer Erwin Stoff said that the film's development was in the early stages, and that they had \"just signed it\". Keanu Reeves was to play the role of Spike Spiegel. Variety confirmed on January 15, 2009 that production company Sunrise Animation would be \"closely involved with the development of the English-language project\". The site also confirmed Kenji Uchida, Shinichirō Watanabe and series writer Keiko Nobumoto as associate producers, series producer Masahiko Minami as a production consultant, and Peter Craig as screenwriter. This was lauded by various sources as a promising move for the potential quality of the film. At the time it was slated to release in 2011, but problems with the budget delayed its production. The submitted script was sent back for rewrite to reduce the cost and little has been heard about it since an interview with producer Joshua Long on October 15, 2010; the project currently languishes in development hell. On October 25, 2014, series director Watanabe was asked about the live-action film at the MCM London Comicon. He stated: \"I'm afraid I don't know what they're thinking in Hollywood. Apparently the project hasn't come to a stop but I don't know how it's going to progress from here on. I hear that there are a lot of 'Hollywood' problems.\"",
"title": "Related media"
},
{
"paragraph_id": 37,
"text": "In 2017, it was announced that an American live-action adaptation of the series was being developed by Tomorrow Studios, a partnership between Marty Adelstein and ITV Studios, with executive production by Sunrise Inc. Christopher Yost was to write the series, and Netflix announced that it would distribute it. On April 4, 2019, Variety reported that John Cho, Mustafa Shakir, Daniella Pineda and Alex Hassell had been cast. Production was shut down in October 2019 due to a knee injury sustained by Cho, setting production back by more than six months. On April 17, 2020, it was revealed that the episodes would be an hour long. On May 19, 2020, Adelstein revealed that there were three finished episodes and that they had shot at least six episodes before Cho's knee injury. In the same interview it was revealed that the director of the anime series, Shinichirō Watanabe, had been hired as a creative consultant. Production in New Zealand resumed on September 30, 2020, following a COVID-19 lockdown in the country. The series was released on November 19, 2021 to mixed reviews. On December 9, 2021, it was announced that it would not be renewed for a second season, with Netflix cancelling it entirely.",
"title": "Related media"
},
{
"paragraph_id": 38,
"text": "An official side story titled Cowboy Bebop: UT tells the story of Ural and Victoria Terpsichore (V.T. from the session \"Heavy Metal Queen\") when they were bounty-hunters. The story was available in its own official site, however the website was closed and is currently available at the site mirror.",
"title": "Related media"
},
{
"paragraph_id": 39,
"text": "A deck-building board game, Cowboy Bebop: Space Serenade, was released in 2019.",
"title": "Related media"
},
{
"paragraph_id": 40,
"text": "Cowboy Bebop received unanimous acclaim, beginning at the time of its initial broadcast. Beginning in 1998, Japanese critic Keith Rhee highlighted the series as a standout in an otherwise \"run-of-the-mill\" season, praising its overall production values, and singling out Kanno's soundtrack as \"a much-welcome change from all the sugary J-pop tunes of most anime features\". Rhee also highlighted the show's Japanese \"all-star cast\", which his colleague Mark L. Johnson described as being filled with \"veteran voice talent\", turning in even greater performances than those of their \"above average\" US counterparts. In 1999, Australian magazine Hyper reviewed the anime and rated it 9.5 out of 10.",
"title": "Reception"
},
{
"paragraph_id": 41,
"text": "Anime News Network's Mike Crandol gave the series an 'A+' rating for the dubbed version, and an 'A' rating for the subbed version. He characterized the series as \"one of the most popular and respected anime titles in history\", before adding that it was \"a unique television show which skillfully transcends all kinds of genres\". Crandol praised its characters as \"some of the most endearing characters to ever grace an anime\", and commended the voice acting, especially the \"flawless English cast\". He also complimented the series' \"movie-quality\" animation, \"sophisticated\" writing, and its \"incredible\" musical score. Crandol hailed Cowboy Bebop as a \"landmark\" anime \"that will be remembered long after many others have been forgotten\", and went on to call it \"one of the greatest anime titles ever\". Additionally, Michael Toole of Anime News Network named Cowboy Bebop as one of the most important anime of the 1990s.",
"title": "Reception"
},
{
"paragraph_id": 42,
"text": "T.H.E.M. Anime Reviews gave the entire series a perfect score of 5 out of 5 stars, with reviewer Christina Carpenter believing Cowboy Bebop as \"one of the best [anime]\" and touting it as a masterpiece that \"puts most anime...and Hollywood, to shame\". She described it as a \"very stylish, beautifully crafted series that deserves much more attention than it gets\". Carpenter praised the animation as \"a rarity and a marvel to behold\" and that it was \"beyond superb\", and the plot and characterization as having \"a sophistication and subtlety that is practically one-of-a-kind\". She also praised the soundtrack, and hailed the opening theme as one of the best intro pieces she had ever heard. Carpenter went to say that Bebop was a \"must-have for any serious collector of Japanese animation\".",
"title": "Reception"
},
{
"paragraph_id": 43,
"text": "In his article \"Asteroid Blues: The Lasting Legacy of Cowboy Bebop\", The Atlantic writer Alex Suskind states, \"On paper, Cowboy Bebop, the legendary cult anime series from Shinichirō Watanabe, reads like something John Wayne, Elmore Leonard, and Philip K. Dick came up with during a wild, all-night whiskey bender.\" He goes on to write, \"The response from critics and fans may have sounded hyperbolic—the word 'masterpiece' was thrown around a great deal—but the praise was justified. First-time solo director Watanabe had created a gorgeous tale of morality, romance, and violence–a dark look at the lives of outlaws that's shot like an independent film.\"",
"title": "Reception"
},
{
"paragraph_id": 44,
"text": "In January 2015, television writer Kyle Mills of DVD Talk awarded the series five stars upon review. He stated, \"Regardless of the medium, be it live action television, film, or animation, Cowboy Bebop is simply one of the finest examples of storytelling ever created.\" In his review, he describes the finale as \"one of the best in television history\", referring to it as a \"widely revered\" ending that \"still sparks fan conversation, resonating with viewers 15 years on\". He closes by writing, \"Cowboy Bebop ends with a bang.\"",
"title": "Reception"
},
{
"paragraph_id": 45,
"text": "In his 2018 review of the series, Paste critic John Maher wrote, \"It feels like a magnum opus produced at the pinnacle of a long career despite being, almost unbelievably, Watanabe's first series as a director. It is a masterwork that should justly rank among the best works of television of all time.\" It was also placed at #1 on the publication's list of the \"50 Best Anime Series of All Time\".",
"title": "Reception"
},
{
"paragraph_id": 46,
"text": "On review aggregator Rotten Tomatoes, the series has an approval rating of 100% based on 23 reviews, with an average rating of 8/10. The website's critical consensus reads, \"Blending a head-spinning array of genres and references, Cowboy Bebop is an anime television classic that must be experienced.\"",
"title": "Reception"
},
{
"paragraph_id": 47,
"text": "In an April 2019 interview with Diego Molano, creator of Victor & Valentino, he said that Cowboy Bebop was the first anime he \"obsessed over\", as he spent time tracking down VHS tapes of the show in high school. He also argued that this series showed him \"how cinematic and emotional animation can be\".",
"title": "Reception"
},
{
"paragraph_id": 48,
"text": "In the 1999 Anime Grand Prix awards for the anime of 1998, Cowboy Bebop won two first place awards: Spike Spiegel was awarded the best male character; and Megumi Hayashibara was awarded the best voice actor for her role as Faye Valentine. Cowboy Bebop also received rankings in other categories: the series itself was awarded the second best anime series; Faye Valentine and Ed were ranked the fifth and ninth best female characters respectively; \"Tank!\" and \"The Real Folk Blues\" were ranked the third and fifteenth best songs respectively; and \"Ballad of Fallen Angels\", \"Speak Like a Child\", \"Jamming with Edward\" and \"Mish-Mash Blues\" were ranked the second, eighth, eighteenth and 20th best episodes respectively.",
"title": "Reception"
},
{
"paragraph_id": 49,
"text": "In the 2000 Anime Grand Prix awards for the anime of 1999, Cowboy Bebop won the same two first place awards again: best male character for Spike Spiegel; and best voice actor for Megumi Hayashibara. Other rankings the series received are: second best anime series; sixth best female character for Faye Valentine; seventh and twelfth best song for \"Tank!\" and \"Blue\" respectively; and third and seventeenth best episode for \"The Real Folk Blues (Part 2)\" and \"Hard Luck Woman\" respectively. In the 2000 Seiun Awards, Cowboy Bebop was awarded for Best Media of the Year.",
"title": "Reception"
},
{
"paragraph_id": 50,
"text": "A 2004 poll in Newtype USA, the US edition of the Japanese magazine Newtype, asked its readers to vote the \"Top 25 Anime Titles of All Time\"; Cowboy Bebop ranked second on the list (after Neon Genesis Evangelion), placing it as one of the most socially relevant and influential anime series ever created. During that same year, Cinefantastique listed the anime as one of the \"10 Essential Animations\", citing the series' \"gleeful mix of noir-style, culture-hopping inclusiveness and music\". In 2007, the American Anime magazine Anime Insider listed the \"50 Best Anime Ever\" by compiling lists of industry regulars and magazine staff, and ranked Cowboy Bebop as the #1 anime of all time. In 2012, Madman Entertainment compiled the votes of fans online for \"The Top 20 Madman Anime Titles\" and ranked Cowboy Bebop at seventh.",
"title": "Reception"
},
{
"paragraph_id": 51,
"text": "Cowboy Bebop has been featured in several lists published by IGN. In the 2009 \"Top 100 Animated TV Series\" list, Cowboy Bebop, labelled as \"a very original – and arguably one of the best – anime\", was placed fourteenth, making it the second highest ranking anime on the list (after Evangelion) and one of the most influential series of the 1990s. In 2011, Bebop was ranked 29th in the \"Top 50 Sci-Fi TV Shows\" list, once again being the second highest ranking anime on the list (after Evangelion). In 2006, Cowboy Bebop's soundtrack was ranked first in \"Top Ten Anime Themes and Soundtracks of All-Time\" list, with the series being commented as \"one of the best anime ever and certainly is tops when it comes to music.\" Spike Spiegel was ranked fourth place in the \"Top 25 Anime Characters of All Time\" article. IGN Movies also placed Cowboy Bebop in their list of \"10 Cartoon Adaptations We'd Like to See\".",
"title": "Reception"
},
{
"paragraph_id": 52,
"text": "The series has been subject to study and analysis since its debut, with the main focus being on its style and mixture of genres. Miguel Douglas, describing the series style in a review, said that \"the series distinctly establishes itself outside the realm of conventional Japanese animation and instead chooses to forge its own path. With a setting within the realm of science fiction, the series wisely offers a world that seems entirely realistic considering our present time. Free from many of the elements that accompany science fiction in general—whether that be space aliens, giant robots, or laser guns—the series delegates itself towards presenting a world that is quite similar to our own albeit showcasing some technological advances. Certainly not as pristine a future we would see in other series or films, Cowboy Bebop decides to deliver a future that closely reflects that of our own time. This aspect of familiarity does wonders in terms of relating to the viewer, and it presents a world that certainly resembles our very own.\" Daryl Surat of Otaku USA, commenting on the series' appeal, said that it was \"that rare breed of science-fiction: 'accessible'. Unlike many anime titles, viewers weren't expected to have knowledge of Japanese culture—character names, signs, and the like were primarily in English to begin with—or have seen any other anime series prior.\" Michelle Onley Pirkle, in her book Science Fiction Film, Television, and Adaptation: Across the Screens, said that \"Cowboy Bebop is taking a new take on genre, not by creating unique images and sounds, but by playing 'freely' with, 'remixing', or adapting the images and sounds of other familiar genres in a dynamic way.\" Robert Baigent, writing for the Graduate Journal of Asia-Pacific Studies, said that the series' appeal likely stemmed from the trend in anime to emulate Western fiction.",
"title": "Reception"
},
{
"paragraph_id": 53,
"text": "In March 2009, the print and web editions of The Onion's The A.V. Club called Cowboy Bebop \"rightly a huge hit\", and listed it as a gateway series to understanding the medium of anime as a whole. Suskind said: \"It was unlike anything the genre had seen before. It even approached its music differently. The show kicked off with a wormhole of a theme song, and the soundtrack moves so seamlessly through genres, from rock to country to pop to jazz to funk, it's shocking to learn that one set of musicians is behind it all\". In an interview, producer Sean Akins also states that the series \"created a whole new world\". \"It's hard for me to quantify the impact that I think it has had. It changed anime. I think people began to think about what shows would be cool. I think it redefined cool within animation, not only in Japan but in the States\". One of the series' main animators, Tensai Okamura, went on to create his own anime in 2007: Darker than Black. Okamura used his experience from Cowboy Bebop to write the screenplay of Darker than Black, leading to narratives composed of two episodes similar to Japanese dramas.",
"title": "Legacy"
},
{
"paragraph_id": 54,
"text": "American film director, screenwriter, and producer Rian Johnson has cited Cowboy Bebop as a visual influence on his films, most notably Brick. Ender's Game writer Orson Scott Card also praised the series. He states that the series is \"better than most sci-fi films out there\". He goes on to say that he \"found this series brilliant, but what held me was a combination of strong relationship-based storytelling, a moody visual style that never got old and really smart dialogue\".",
"title": "Legacy"
},
{
"paragraph_id": 55,
"text": "After the creation of the series, an interviewer asked Watanabe if he had any plans to create more Cowboy Bebop material. Watanabe responded by saying that he does not believe that he \"should just keep on making Cowboy Bebop sequels for the sake of it\". Watanabe added that ending production and \"to quit while we're ahead when people still want more\" is more \"in keeping with the Bebop spirit\". In a more recent interview from 2006 with The Daily Texan, Watanabe was asked if there would ever be more Cowboy Bebop. Watanabe's answer was \"someday...maybe, someday\".",
"title": "Legacy"
},
{
"paragraph_id": 56,
"text": "In May 2020, composer Mason Lieberman, who has never actually seen Cowboy Bebop, partnered with Sunrise and Funimation to produce an official Cowboy Bebop charity track for COVID-19 relief. This track was released on vinyl and featured the return of original series composer Yōko Kanno, original recording band The Seatbelts, and a collection of forty other special musical guests.",
"title": "Legacy"
}
] | Cowboy Bebop is a Japanese neo-noir space Western anime television series which aired on TV Tokyo and Wowow from 1998 to 1999. It was created and animated by Sunrise, led by a production team of director Shinichirō Watanabe, screenwriter Keiko Nobumoto, character designer Toshihiro Kawamoto, mechanical designer Kimitoshi Yamane, and composer Yoko Kanno, who are collectively billed as Hajime Yatate. The series, which ran for twenty-six episodes, is set in the year 2071, and follows the lives of a traveling bounty-hunting crew aboard a spaceship, the Bebop. Although it incorporates a wide variety of genres, the series draws most heavily from science fiction, Western, and noir films. Its most prominent themes are existential boredom, loneliness, and the inability to escape one's past. The series was dubbed into English by Animaze and ZRO Limit Productions, and was originally licensed in North America by Bandai Entertainment and in Britain by Beez Entertainment; Madman Entertainment owns the license in Australia and New Zealand. In 2001, it became the first anime title to be broadcast on Adult Swim. Cowboy Bebop has been hailed as one of the best anime series of all time. It was a critical and commercial success both in Japanese and international markets, most notably in the United States. It garnered several major anime and science-fiction awards upon its release, and received acclaim from critics and audiences for its style, characters, story, voice acting, animation, and soundtrack. The English dub was particularly lauded and is regarded as one of the best anime English dubs. Credited with helping to introduce anime to a new wave of Western viewers in the early 2000s, Cowboy Bebop has also been called a gateway series for anime as a whole. | 2001-12-05T03:31:08Z | 2023-12-28T21:32:23Z | [
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7,342 | Clement of Alexandria | Titus Flavius Clemens, also known as Clement of Alexandria (Ancient Greek: Κλήμης ὁ Ἀλεξανδρεύς; c. 150 – c. 215 AD), was a Christian theologian and philosopher who taught at the Catechetical School of Alexandria. Among his pupils were Origen and Alexander of Jerusalem. A convert to Christianity, he was an educated man who was familiar with classical Greek philosophy and literature. As his three major works demonstrate, Clement was influenced by Hellenistic philosophy to a greater extent than any other Christian thinker of his time, and in particular, by Plato and the Stoics. His secret works, which exist only in fragments, suggest that he was familiar with pre-Christian Jewish esotericism and Gnosticism as well. In one of his works he argued that Greek philosophy had its origin among non-Greeks, claiming that both Plato and Pythagoras were taught by Egyptian scholars.
Clement is usually regarded as a Church Father. He is venerated as a saint in Coptic Christianity, Eastern Catholicism, Ethiopian Christianity, and Anglicanism. He was revered in Western Catholicism until 1586, when his name was removed from the Roman Martyrology by Pope Sixtus V on the advice of Baronius. The Eastern Orthodox Church officially stopped any veneration of Clement of Alexandria in the 10th century. Nonetheless, he is still often referred to as "Saint Clement of Alexandria" by both Eastern Orthodox and Roman Catholic authors.
Neither Clement's birthdate or birthplace is known with any degree of certainty. It is speculated that he was born sometime around 150 AD. According to Epiphanius of Salamis, he was born in Athens, but there is also a tradition of an Alexandrian birth.
His parents were pagans and Clement was a convert to Christianity. In the Protrepticus he displays an extensive knowledge of Greek religion and mystery religions, which could only have arisen from the practice of his family's religion.
Having rejected paganism as a young man due to its perceived moral corruption, he travelled in Greece, Asia Minor, Palestine, and Egypt. Clement's journeys were primarily a religious undertaking. In Greece, he encountered an Ionian theologian, who has been identified as Athenagoras of Athens; while in the east, he was taught by an Assyrian, sometimes identified with Tatian, and a Jew, possibly Theophilus of Caesarea.
In around 180 AD, Clement reached Alexandria, where he met Pantaenus, who taught at the Catechetical School of Alexandria. Eusebius suggests that Pantaenus was the head of the school, but controversy exists about whether the institutions of the school were formalized in this way before the time of Origen. Clement studied under Pantaenus, and was ordained to the priesthood by Pope Julian before 189. Otherwise, virtually nothing is known of Clement's personal life in Alexandria. He may have been married, a conjecture supported by his writings.
During the Severian persecution of 202–203, Clement left Alexandria. In 211, Alexander of Jerusalem wrote a letter commending him to the Church of Antioch, which may imply that Clement was living in Cappadocia or Jerusalem at that time. He died c. 215 AD at an unknown location.
Three of Clement's major works have survived in full and they are collectively referred to as a trilogy:
The Protrepticus (Greek: Προτρεπτικὸς πρὸς Ἕλληνας: "Exhortation to the Greeks") is, as its title suggests, an exhortation to the pagans of Greece to adopt Christianity. Within it, Clement demonstrates his extensive knowledge of pagan mythology and theology. It is chiefly important due to Clement's exposition of religion as an anthropological phenomenon. After a short philosophical discussion, it opens with a history of Greek religion in seven stages. Clement suggests that at first, humans mistakenly believed the Sun, the Moon, and other heavenly bodies to be deities. The next developmental stage was the worship of the products of agriculture, from which he contends the cults of Demeter and Dionysus arose. Humans then paid reverence to revenge and deified human feelings of love and fear, among others. In the following stage, the poets Hesiod and Homer attempt to enumerate the deities; Hesiod's Theogony giving the number of twelve. Finally, humans reached a stage when they proclaimed others, such as Asclepius and Heracles, as deities. Discussing idolatry, Clement contends that the objects of primitive religion were unshaped wood and stone, and idols thus arose when such natural items were carved. Following Plato, Clement is critical of all forms of visual art, suggesting that artworks are but illusions and "deadly toys".
Clement criticizes Greek paganism in the Protrepticus on the basis that its deities are both false and poor moral examples. He attacks the mystery religions for their ritualism and mysticism. In particular, the worshippers of Dionysus are ridiculed by him for their family-based rituals (such as the use of children's toys in ceremony). He suggests at some points that the pagan deities are based on humans, but at other times he suggests that they are misanthropic demons, and he cites several classical sources in support of this second hypothesis. Clement, like many pre-Nicene church fathers, writes favourably about Euhemerus and other rationalist philosophers, on the grounds that they at least saw the flaws in paganism. However, his greatest praise is reserved for Plato, whose apophatic views of God prefigure Christianity.
The figure of Orpheus is prominent throughout the Protrepticus narrative, and Clement contrasts the song of Orpheus, representing pagan superstition, with the divine Logos of Christ. According to Clement, through conversion to Christianity alone can one fully participate in the Logos, which is universal truth.
The title of Paedagogus, translatable as "tutor", refers to Christ as the teacher of all humans, and it features an extended metaphor of Christians as children. It is not simply instructional: Clement intends to show how the Christian should respond to the Love of God authentically. Following Plato (Republic 4:441), he divides life into three elements: character, actions, and passions. The first having been dealt with in the Protrepticus, he devotes the Paedagogus to reflections on Christ's role in teaching humans to act morally and to control their passions. Despite its explicitly Christian nature, Clement's work draws on Stoic philosophy and pagan literature; Homer, alone, is cited more than sixty times in the work.
Although Christ, like a human, is made in the image of God, he alone shares the likeness of God the Father. Christ is both sinless and apathetic, and thus by striving to imitate Christ, one can achieve salvation. To Clement, sin is involuntary, and thus irrational (άλογον), removed only through the wisdom of the Logos. God's guidance away from sin is thus a manifestation of God's universal love for mankind. The word play on λόγος and άλογον is characteristic of Clement's writing, and may be rooted in the Epicurean belief that relationships between words are deeply reflective of relationships between the objects they signify.
Clement argues for the equality of sexes, on the grounds that salvation is extended to all humans equally. Unusually, he suggests that Christ is neither female nor male, and that God the Father has both female and male aspects: the eucharist is described as milk from the breast (Christ) of the Father. Clement is supportive of women playing an active role in the leadership of the church and he provides a list of women he considers inspirational, which includes both Biblical and Classical Greek figures. It has been suggested that Clement's progressive views on gender as set out in the Paedagogus were influenced by Gnosticism, however, later in the work, he argues against the Gnostics that faith, not esoteric knowledge (γνῶσις), is required for salvation. According to Clement, it is through faith in Christ that one is enlightened and comes to know God.
In the second book, Clement provides practical rules on living a Christian life. He argues against overindulgence in food and in favour of good table manners. While prohibiting drunkenness, he promotes the drinking of alcohol in moderation following 1 Timothy 5:23. Clement argues for a simple way of life in accordance with the innate simplicity of Christian monotheism. He condemns elaborate and expensive furnishings and clothing, and argues against overly passionate music and perfumes, but Clement does not believe in the abandonment of worldly pleasures and argues that the Christian should be able to express joy in God's creation through gaiety and partying. He opposes the wearing of garlands, because the picking of the flowers ultimately kills a beautiful creation of God, and the garland resembles the crown of thorns.
Clement treats sex at some length. He argues that both promiscuity and sexual abstinence are unnatural, and that the main goal of human sexuality is procreation. He argues that adultery, coitus with pregnant women, concubinage, homosexuality, and prostitution all should be avoided as they will not contribute toward the generation of legitimate offspring.
In his third book, Clement continues along a similar vein, condemning cosmetics on the grounds that it is one's soul, not the body, one should seek to beautify. Clement also opposes the dyeing of men's hair and male depilation as being effeminate. He advises choosing one's company carefully, to avoid being corrupted by immoral people, and while arguing that material wealth is no sin in itself, it is too likely to distract one from the infinitely more important spiritual wealth that is found in Christ. The work finishes with selections of scripture supporting Clement's argument, and following a prayer, the lyrics of a hymn.
The contents of the Stromata, as its title suggests, are miscellaneous. Its place in the trilogy is disputed – Clement initially intended to write the Didasculus, a work that would complement the practical guidance of the Paedagogus with a more intellectual schooling in theology. The Stromata is less systematic and ordered than Clement's other works, and it has been theorized by André Méhat that it was intended for a limited, esoteric readership. Although Eusebius wrote of the eight books of the work, only seven undoubtedly survive. Photius, writing in the 9th century, found various text appended to manuscripts of the seven canonical books, which led Daniel Heinsius to suggest that the original eighth book is lost, and he identified the text purported to be from the eighth book as fragments of the Hypotyposes.
The first book starts on the topic of Greek philosophy. Consistent with his other writing, Clement affirms that philosophy had a propaedeutic role for the Greeks, similar to the function of the law for the Jews. He then embarks on a discussion of the origins of Greek culture and technology, arguing that most of the important figures in the Greek world were foreigners, and (erroneously) that Jewish culture was the most significant influence on Greece. In an attempt to demonstrate the primacy of Moses, Clement gives an extended chronology of the world, wherein he dates the birth of Christ to 25 April or May, 4–2 BC, and the creation of the world to 5592 BC. The books ends with a discussion on the origin of languages and the possibility of a Jewish influence on Plato.
The second book is largely devoted to the respective roles of faith and philosophical argument. Clement contends that while both are important, the fear of God is foremost, because through faith one receives divine wisdom. To Clement, scripture is an innately true primitive philosophy that is complemented by human reason through the Logos. Faith is voluntary, and the decision to believe is a crucial fundamental step in becoming closer to God. It is never irrational, as it is founded on the knowledge of the truth of the Logos, but all knowledge proceeds from faith, as first principles are unprovable outside a systematic structure.
The third book covers asceticism. He discusses marriage, which is treated similarly in the Paedagogus. Clement rejects the Gnostic opposition to marriage, arguing that only men who are uninterested in women should remain celibate, and that sex is a positive good if performed within marriage for the purposes of procreation. He argues that this has not always been so: the Fall occurred because Adam and Eve succumbed to their desire for each other, and copulated before the allotted time. He argues against the idea that Christians should reject their family for an ascetic life, which stems from Luke, contending that Jesus would not have contradicted the precept to "Honour thy Father and thy Mother", one of the Ten Commandments. Clement concludes that asceticism will only be rewarded if the motivation is Christian in nature, and thus the asceticism of non-Christians such as the gymnosophists is pointless.
Clement begins the fourth book with a belated explanation of the disorganized nature of the work, and gives a brief description of his aims for the remaining three or four books. The fourth book focuses on martyrdom. While all good Christians should be unafraid of death, Clement condemns those who actively seek out a martyr's death, arguing that they do not have sufficient respect for God's gift of life. He is ambivalent about whether any believing Christians can become martyrs by virtue of the manner of their death, or whether martyrdom is reserved for those who have lived exceptional lives. Marcionites cannot become martyrs, because they do not believe in the divinity of God the Father, so their sufferings are in vain. There is then a digression to the subject of theological epistemology. According to Clement, there is no way of empirically testing the existence of God the Father, because the Logos has revelatory, not analysable meaning, although Christ was an object of the senses. God had no beginning, and is the universal first principle.
The fifth book returns to the subject of faith. Clement argues that truth, justice, and goodness can be seen only by the mind, not the eye; faith is a way of accessing the unseeable. He stresses that knowledge of God can only be achieved through faith once one's moral faults have been corrected. This parallels Clement's earlier insistence that martyrdom can only be achieved by those who practice their faith in Christ through good deeds, not those who simply profess their faith. God transcends matter entirely, and thus the materialist cannot truly come to know God. Although Christ was God incarnate, it is spiritual, not physical comprehension of him that is important.
In the beginning of the sixth book, Clement intends to demonstrate that the works of Greek poets were derived from the prophetic books of the Bible. In order to reinforce his position that the Greeks were inclined toward plagiarism, he cites numerous instances of such inappropriate appropriation by classical Greek writers, reported second-hand from On Plagiarism, an anonymous 3rd-century BC work sometimes ascribed to Aretades. Clement then digresses to the subject of sin and hell, arguing that Adam was not perfect when created, but given the potential to achieve perfection. He espouses broadly universalist doctrine, holding that Christ's promise of salvation is available to all, even those condemned to hell.
The final extant book begins with a description of the nature of Christ, and that of the true Christian, who aims to be as similar as possible to both the Father and the Son. Clement then criticizes the simplistic anthropomorphism of most ancient religions, quoting Xenophanes' famous description of African, Thracian, and Egyptian deities. He indicates that the Greek deities may also have had their origins in the personification of material objects: Ares representing iron, and Dionysus wine. Prayer, and the relationship between love and knowledge are then discussed. Corinthians 13:8 seems to contradict the characterization of the true Christian as one who knows; but to Clement knowledge vanishes only in that it is subsumed by the universal love expressed by the Christian in reverence for the Creator. Following Socrates, he argues that vice arises from a state of ignorance, not from intention. The Christian is a "laborer in God's vineyard", responsible both for one's own path to salvation and that of one's neighbor. The work ends with an extended passage against the contemporary divisions and heresies within the church.
Besides the great trilogy, Clement's only other extant work is the treatise Salvation for the Rich, also known as Who is the Rich Man who is Saved? written c. 203 AD Having begun with a scathing criticism of the corrupting effects of money and misguided servile attitudes toward the wealthy, Clement discusses the implications of Mark 10:25. The rich are either unconvinced by the promise of eternal life, or unaware of the conflict between the possession of material and spiritual wealth, and the good Christian has a duty to guide them toward a better life through the Gospel. Jesus' words are not to be taken literally — the supercelestial (ὑπερουράνιος) meanings should be sought in which the true route to salvation is revealed. The holding of material wealth in itself is not a wrong, so long as it is used charitably, but Christians should be careful not to let their wealth dominate their spirit. It is more important to give up sinful passions than external wealth. If the rich are to be saved, all they must do is to follow the two commandments, and while material wealth is of no value to God, it can be used to alleviate the suffering of neighbors.
Other known works exist in fragments alone, including the four eschatological works in the secret tradition: Hypotyposes, Excerpta ex Theodoto, Eclogae Propheticae, and the Adumbraetiones. These cover Clement's celestial hierarchy, a complex schema in which the universe is headed by the Face of God, below which lie seven protoctists, followed by archangels, angels, and humans. According to Jean Daniélou, this schema is inherited from a Judaeo-Christian esotericism, followed by the Apostles, which was only imparted orally to those Christians who could be trusted with such mysteries. The proctocists are the first beings created by God, and act as priests to the archangels. Clement identifies them both as the "Eyes of the Lord" and with the Thrones. Clement characterizes the celestial forms as entirely different from anything earthly, although he argues that members of each order only seem incorporeal to those of lower orders. According to the Eclogae Propheticae, every thousand years every member of each order moves up a degree, and thus humans can become angels. Even the protoctists can be elevated, although their new position in the hierarchy is not clearly defined. The apparent contradiction between the fact that there can be only seven protoctists but also a vast number of archangels to be promoted to their order is problematical. One modern solution regards the story as an example of "interiorized apocalypticism": imagistic details are not to be taken literally, but as symbolizing interior transformation.
The titles of several lost works are known because of a list in Eusebius' Ecclesiastical History, 6.13.1–3. They include the Outlines, in eight books, and Against Judaizers. Others are known only from mentions in Clement's own writings, including On Marriage and On Prophecy, although few are attested by other writers and it is difficult to separate works that he intended to write from those that were completed.
The Mar Saba letter was attributed to Clement by Morton Smith, but there remains much debate today over whether it is an authentic letter from Clement, an ancient pseudepigraph, or a modern forgery. If authentic, its main significance would be in its relating that the Apostle Mark came to Alexandria from Rome and there, wrote a more spiritual Gospel, which he entrusted to the Church in Alexandria on his death; if genuine, the letter pushes back the tradition related by Eusebius connecting Mark with Alexandria by a century.
Eusebius, the fourth-century early church historian, is the first writer to provide an account of Clement's life and works, in his Ecclesiastical History, 5.11.1–5, 6.6.1 He provides a list of Clement's works, biographical information, and an extended quotation from the Stromata. From this and other accounts, it is evident that Clement was highly revered by his contemporaries and later patristic figures. As J.B. Mayor observes, “The piety and learning of Clement, his power as a teacher and philosopher, are spoken of in the highest terms by succeeding fathers.”
In the same work, Eusebius cites Alexander of Jerusalem (180-251) lauding “the holy Clement, who was both my master and benefactor,” describing him as one of the “blessed fathers who have trod the path before us,” while Eusebius himself is quoted as calling him “an incomparable master of Christian philosophy.” Jerome (342-420) calls Clement “the most learned of men,” recording that his writings are “full of eloquence and learning, both in sacred Scripture and in secular literature.” The aforementioned Alexander of Jerusalem is quoted by Jerome praising “the blessed presbyter Clement, a man illustrious and approved.” According to Theodoret (393-450), “he surpassed all others, and was a holy man.” Likewise, Cyril of Alexandria (376-444) says Clement was “a man admirably learned and skillful, and one that searched to the depths all the learning of the Greeks, with an exactness rarely attained before.” Maximus the Confessor (580-662) refers to him reverentially as “the great Clement.”
More recently, scholars have acknowledged Clement's primacy and importance in various respects. He has been called “the first Christian scholar” (Shelley), “the first systematic teacher of Christian doctrine” (Patrick), “the first great teacher of philosophical Christianity” (Hatch), “the first self-conscious theologian and ethicist” (Backhouse), “the first great Christian teacher in Alexandria” (Needham), “the founder of Christian philosophical theology” (Bray), “the true creator of ecclesiastical theology” (DeFaye), “the first major commentator on the Bible” (Bray), “the founder of Christian literature” (ANF), “the great founder of the Alexandrian School” (Coxe), a “pioneer of Christian scholarship” (ACCS), “an intellectual giant in the early church” (Kruger), “that man of genius who introduced Christianity to itself, as reflected in the burnished mirror of his intellect” (Coxe), and “the most inquisitive and independent spirit that has perhaps ever appeared in the Church” (DeFaye).
Stylistically, it has been noted that “his writings shine with a happy, peaceful, optimistic spirit; reading them can be a remarkably uplifting experience” (Needham). “He loves God’s creation and sees it as good; he gives us a warm, joyous picture of life; he is richly human, sane, and moderate” (Ferguson). Additionally, Clement's works “are a storehouse of curious ancient lore—a museum of the fossil remains of the beauties and monstrosities of the world of pagan antiquity, during all the epochs and phases of its history” (Wilson). “His prodigious erudition was unsurpassed even by that of Origen” (Cayre). “I do not know where we shall look for a purer or a truer man than this Clemens of Alexandria; he seems to me one of the old fathers whom we should all have reverenced most as a teacher, and loved best as a friend” (Maurice).
Nonetheless, there have been a few dissenting voices. Photios I of Constantinople writes polemically against Clement's theology in the Bibliotheca, although he also is appreciative of Clement's learning and the literary merits of his work. In particular, he is highly critical of the Hypotyposes, a work of biblical exegesis of which only a few fragments have survived. Photios compared Clement's treatise, which, like his other works, was highly syncretic, featuring ideas of Hellenistic, Jewish, and Gnostic origin, unfavorably against the prevailing orthodoxy of the 9th century. Amongst the particular ideas Photios deemed heretical were:
However, it is not clear that these are accurate representations of Clement's actual beliefs, since his extant writings appear to be mostly in line with what would come to be considered orthodox Christian theology. It has been suggested that Photios may have misunderstood Clement to be speaking for himself when he was often quoting from Gnostics and other sects without agreeing with their teachings.
As one of the earliest of the Church fathers whose works have survived, he is the subject of a significant amount of recent academic work, focusing on, among other things, his exegesis of scripture, his Logos-theology and pneumatology, his apparent belief in apokatastasis, the relationship between his thought and non-Christian philosophy, and his influence on Origen.
Up until the 17th century Clement was venerated as a saint in the Roman Catholic Church. His name was to be found in the martyrologies, and his feast fell on the fourth of December, but when the Roman Martyrology was revised by Pope Clement VIII his name was dropped from the calendar on the advice of Cardinal Baronius. Benedict XIV maintained this decision of his predecessor on the grounds that Clement's life was little known, that he had never obtained public cultus in the Church, and that some of his doctrines were, if not erroneous, at least suspect.
Although Clement is not widely venerated in Eastern Christianity, the Prologue of Ohrid repeatedly refers to him as a saint, as do various Orthodox authorities including the Greek Metropolitan Kallinikos of Edessa.
The Coptic tradition considers Clement a saint. Saint Clement Coptic Orthodox Christian Academy in Nashville, Tennessee, is specifically named after him.
Clement is commemorated in Anglicanism.
Clement taught that faith was the basis of salvation, however he also believed that faith was also the basis of "gnosis" which for him mean spiritual and mystical knowledge. Clement of Alexandria appropriated the word "gnosis" from what the Gnostics used, whom he opposed, but re-interpreted the word in a more Christian manner. Clement of Alexandria distinguished between two kinds of Christians, a pistic Christian who lives according to God's law, and the Christian gnostic who lives on the level of the gospel and responds by discipline and love. Clement's views of gnosis can be considered a forerunner of monasticism that began in Egypt after his death.
Clement suggested that philosophy was a preparatory discipline to the Greek world that would lead them to accept Christianity, and often sought to harmonize insights of Greek philosophy with biblical teaching. He defined philosophy as "the desire for true being and the studies which lead to it." Clement has been described as "the founder of what was to become the great tradition of Christian philosophical theology." He also was a forerunner to some views of Augustine, including arguably the just war theory and the theory of the two cities.
Clement is often regarded as one of the first Christian universalists, espousing belief in the eventual salvation of every person (though not with the level of systematic clarity of his disciple Origen). Clement understood divine punishment as corrective and remedial rather than merely retributive or destructive. He writes, "[God] destroys no one but gives salvation to all." "He bestows salvation on all mankind." "He indeed saves all universally—some as converted by punishments, others by voluntary submission with dignity of honor—that to Him every knee shall bow, both of beings in heaven, and on earth, and under the earth; that is, angels, and men, and souls departed this life." "God's punishments are saving and disciplinary, leading to conversion; choosing rather the repentance than the death of a sinner." "I will grant that He punishes the disobedient, for punishment is for the good and advantage of him who is punished, for it is the correction of a refractory subject." "For all things are arranged with a view to the salvation of the universe by the Lord of the universe, both generally and particularly."
For Clement, disciplining the body will help the Christian discipline his soul, which is why he gives detailed instructions on proper Christian conduct, decorum, and relationships in the second and third books of The Instructor. Only once the passions are subject to the authority of the Word (or reason) can the Christian embark on an advanced course of philosophical study and contemplation.
Clement adopts a position that will give rise to a whole stream of later Christian thought: true philosophy and authentic human knowledge have their origin in the Logos, which is the unique source of all truth. He accepts the conception of παιδεία as he conducts the wisdom taught by the Logos through education in the sacred letters: on the one hand, the Greek παιδεία prepares the mind of the Christian to distinguish and defend the truth, and, on the other, the liberal arts help the new Christian to direct all his efforts towards the truly useful of each particular discipline, geometry, music, grammar and philosophy.
Notably (considering the time period), Clement seemed to advocate for the equality of women and men in the area of education, at least within the context of Christian spirituality and ethics. He wrote, "Let us recognize, too, that both men and women practice the same sort of virtue; surely, if there is but one God for both, then there is but one Educator for both."
Clement opposed a literal interpretation of the command "sell what you have and give to the poor," and argued that the Bible does not command every person to renounce all property, and that wealth can be used either for good or evil. Yet he seems to have done so tentatively (and perhaps reluctantly), to address the concerns of upper-class converts, while simultaneously warning of the dangers of wealth.
Clement believed that the days mentioned in Genesis are allegorical. Clement assumed a double creation, one of an invisible world and the second being material creation. He believed that formless matter existed before the creation of the world, being influenced by Plato. Clement tried to interpret Genesis 6 in harmony with the Book of Enoch.
The first person in church history to introduce a view of an invisible and a visible church is Clement of Alexandria. Because Clement saw the Protoevangelium of James as canonical, it could imply he believed in the perpetual virginity of Mary, though some have argued that he does not seem to believe in the sinlessness of Mary.
Clement of Alexandria interprets "Fire of Wisdom" which prevades the soul as by a baptism.
Clement of Alexandria used the word "symbol" to define the Eucharist, and interpreted John 6 to be an allegory about faith, however his views on real presence are disputed.
Clement of Alexandria was apparently an amillennialist. | [
{
"paragraph_id": 0,
"text": "Titus Flavius Clemens, also known as Clement of Alexandria (Ancient Greek: Κλήμης ὁ Ἀλεξανδρεύς; c. 150 – c. 215 AD), was a Christian theologian and philosopher who taught at the Catechetical School of Alexandria. Among his pupils were Origen and Alexander of Jerusalem. A convert to Christianity, he was an educated man who was familiar with classical Greek philosophy and literature. As his three major works demonstrate, Clement was influenced by Hellenistic philosophy to a greater extent than any other Christian thinker of his time, and in particular, by Plato and the Stoics. His secret works, which exist only in fragments, suggest that he was familiar with pre-Christian Jewish esotericism and Gnosticism as well. In one of his works he argued that Greek philosophy had its origin among non-Greeks, claiming that both Plato and Pythagoras were taught by Egyptian scholars.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Clement is usually regarded as a Church Father. He is venerated as a saint in Coptic Christianity, Eastern Catholicism, Ethiopian Christianity, and Anglicanism. He was revered in Western Catholicism until 1586, when his name was removed from the Roman Martyrology by Pope Sixtus V on the advice of Baronius. The Eastern Orthodox Church officially stopped any veneration of Clement of Alexandria in the 10th century. Nonetheless, he is still often referred to as \"Saint Clement of Alexandria\" by both Eastern Orthodox and Roman Catholic authors.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Neither Clement's birthdate or birthplace is known with any degree of certainty. It is speculated that he was born sometime around 150 AD. According to Epiphanius of Salamis, he was born in Athens, but there is also a tradition of an Alexandrian birth.",
"title": "Biography"
},
{
"paragraph_id": 3,
"text": "His parents were pagans and Clement was a convert to Christianity. In the Protrepticus he displays an extensive knowledge of Greek religion and mystery religions, which could only have arisen from the practice of his family's religion.",
"title": "Biography"
},
{
"paragraph_id": 4,
"text": "Having rejected paganism as a young man due to its perceived moral corruption, he travelled in Greece, Asia Minor, Palestine, and Egypt. Clement's journeys were primarily a religious undertaking. In Greece, he encountered an Ionian theologian, who has been identified as Athenagoras of Athens; while in the east, he was taught by an Assyrian, sometimes identified with Tatian, and a Jew, possibly Theophilus of Caesarea.",
"title": "Biography"
},
{
"paragraph_id": 5,
"text": "In around 180 AD, Clement reached Alexandria, where he met Pantaenus, who taught at the Catechetical School of Alexandria. Eusebius suggests that Pantaenus was the head of the school, but controversy exists about whether the institutions of the school were formalized in this way before the time of Origen. Clement studied under Pantaenus, and was ordained to the priesthood by Pope Julian before 189. Otherwise, virtually nothing is known of Clement's personal life in Alexandria. He may have been married, a conjecture supported by his writings.",
"title": "Biography"
},
{
"paragraph_id": 6,
"text": "During the Severian persecution of 202–203, Clement left Alexandria. In 211, Alexander of Jerusalem wrote a letter commending him to the Church of Antioch, which may imply that Clement was living in Cappadocia or Jerusalem at that time. He died c. 215 AD at an unknown location.",
"title": "Biography"
},
{
"paragraph_id": 7,
"text": "Three of Clement's major works have survived in full and they are collectively referred to as a trilogy:",
"title": "Theological works"
},
{
"paragraph_id": 8,
"text": "The Protrepticus (Greek: Προτρεπτικὸς πρὸς Ἕλληνας: \"Exhortation to the Greeks\") is, as its title suggests, an exhortation to the pagans of Greece to adopt Christianity. Within it, Clement demonstrates his extensive knowledge of pagan mythology and theology. It is chiefly important due to Clement's exposition of religion as an anthropological phenomenon. After a short philosophical discussion, it opens with a history of Greek religion in seven stages. Clement suggests that at first, humans mistakenly believed the Sun, the Moon, and other heavenly bodies to be deities. The next developmental stage was the worship of the products of agriculture, from which he contends the cults of Demeter and Dionysus arose. Humans then paid reverence to revenge and deified human feelings of love and fear, among others. In the following stage, the poets Hesiod and Homer attempt to enumerate the deities; Hesiod's Theogony giving the number of twelve. Finally, humans reached a stage when they proclaimed others, such as Asclepius and Heracles, as deities. Discussing idolatry, Clement contends that the objects of primitive religion were unshaped wood and stone, and idols thus arose when such natural items were carved. Following Plato, Clement is critical of all forms of visual art, suggesting that artworks are but illusions and \"deadly toys\".",
"title": "Theological works"
},
{
"paragraph_id": 9,
"text": "Clement criticizes Greek paganism in the Protrepticus on the basis that its deities are both false and poor moral examples. He attacks the mystery religions for their ritualism and mysticism. In particular, the worshippers of Dionysus are ridiculed by him for their family-based rituals (such as the use of children's toys in ceremony). He suggests at some points that the pagan deities are based on humans, but at other times he suggests that they are misanthropic demons, and he cites several classical sources in support of this second hypothesis. Clement, like many pre-Nicene church fathers, writes favourably about Euhemerus and other rationalist philosophers, on the grounds that they at least saw the flaws in paganism. However, his greatest praise is reserved for Plato, whose apophatic views of God prefigure Christianity.",
"title": "Theological works"
},
{
"paragraph_id": 10,
"text": "The figure of Orpheus is prominent throughout the Protrepticus narrative, and Clement contrasts the song of Orpheus, representing pagan superstition, with the divine Logos of Christ. According to Clement, through conversion to Christianity alone can one fully participate in the Logos, which is universal truth.",
"title": "Theological works"
},
{
"paragraph_id": 11,
"text": "The title of Paedagogus, translatable as \"tutor\", refers to Christ as the teacher of all humans, and it features an extended metaphor of Christians as children. It is not simply instructional: Clement intends to show how the Christian should respond to the Love of God authentically. Following Plato (Republic 4:441), he divides life into three elements: character, actions, and passions. The first having been dealt with in the Protrepticus, he devotes the Paedagogus to reflections on Christ's role in teaching humans to act morally and to control their passions. Despite its explicitly Christian nature, Clement's work draws on Stoic philosophy and pagan literature; Homer, alone, is cited more than sixty times in the work.",
"title": "Theological works"
},
{
"paragraph_id": 12,
"text": "Although Christ, like a human, is made in the image of God, he alone shares the likeness of God the Father. Christ is both sinless and apathetic, and thus by striving to imitate Christ, one can achieve salvation. To Clement, sin is involuntary, and thus irrational (άλογον), removed only through the wisdom of the Logos. God's guidance away from sin is thus a manifestation of God's universal love for mankind. The word play on λόγος and άλογον is characteristic of Clement's writing, and may be rooted in the Epicurean belief that relationships between words are deeply reflective of relationships between the objects they signify.",
"title": "Theological works"
},
{
"paragraph_id": 13,
"text": "Clement argues for the equality of sexes, on the grounds that salvation is extended to all humans equally. Unusually, he suggests that Christ is neither female nor male, and that God the Father has both female and male aspects: the eucharist is described as milk from the breast (Christ) of the Father. Clement is supportive of women playing an active role in the leadership of the church and he provides a list of women he considers inspirational, which includes both Biblical and Classical Greek figures. It has been suggested that Clement's progressive views on gender as set out in the Paedagogus were influenced by Gnosticism, however, later in the work, he argues against the Gnostics that faith, not esoteric knowledge (γνῶσις), is required for salvation. According to Clement, it is through faith in Christ that one is enlightened and comes to know God.",
"title": "Theological works"
},
{
"paragraph_id": 14,
"text": "In the second book, Clement provides practical rules on living a Christian life. He argues against overindulgence in food and in favour of good table manners. While prohibiting drunkenness, he promotes the drinking of alcohol in moderation following 1 Timothy 5:23. Clement argues for a simple way of life in accordance with the innate simplicity of Christian monotheism. He condemns elaborate and expensive furnishings and clothing, and argues against overly passionate music and perfumes, but Clement does not believe in the abandonment of worldly pleasures and argues that the Christian should be able to express joy in God's creation through gaiety and partying. He opposes the wearing of garlands, because the picking of the flowers ultimately kills a beautiful creation of God, and the garland resembles the crown of thorns.",
"title": "Theological works"
},
{
"paragraph_id": 15,
"text": "Clement treats sex at some length. He argues that both promiscuity and sexual abstinence are unnatural, and that the main goal of human sexuality is procreation. He argues that adultery, coitus with pregnant women, concubinage, homosexuality, and prostitution all should be avoided as they will not contribute toward the generation of legitimate offspring.",
"title": "Theological works"
},
{
"paragraph_id": 16,
"text": "In his third book, Clement continues along a similar vein, condemning cosmetics on the grounds that it is one's soul, not the body, one should seek to beautify. Clement also opposes the dyeing of men's hair and male depilation as being effeminate. He advises choosing one's company carefully, to avoid being corrupted by immoral people, and while arguing that material wealth is no sin in itself, it is too likely to distract one from the infinitely more important spiritual wealth that is found in Christ. The work finishes with selections of scripture supporting Clement's argument, and following a prayer, the lyrics of a hymn.",
"title": "Theological works"
},
{
"paragraph_id": 17,
"text": "The contents of the Stromata, as its title suggests, are miscellaneous. Its place in the trilogy is disputed – Clement initially intended to write the Didasculus, a work that would complement the practical guidance of the Paedagogus with a more intellectual schooling in theology. The Stromata is less systematic and ordered than Clement's other works, and it has been theorized by André Méhat that it was intended for a limited, esoteric readership. Although Eusebius wrote of the eight books of the work, only seven undoubtedly survive. Photius, writing in the 9th century, found various text appended to manuscripts of the seven canonical books, which led Daniel Heinsius to suggest that the original eighth book is lost, and he identified the text purported to be from the eighth book as fragments of the Hypotyposes.",
"title": "Theological works"
},
{
"paragraph_id": 18,
"text": "The first book starts on the topic of Greek philosophy. Consistent with his other writing, Clement affirms that philosophy had a propaedeutic role for the Greeks, similar to the function of the law for the Jews. He then embarks on a discussion of the origins of Greek culture and technology, arguing that most of the important figures in the Greek world were foreigners, and (erroneously) that Jewish culture was the most significant influence on Greece. In an attempt to demonstrate the primacy of Moses, Clement gives an extended chronology of the world, wherein he dates the birth of Christ to 25 April or May, 4–2 BC, and the creation of the world to 5592 BC. The books ends with a discussion on the origin of languages and the possibility of a Jewish influence on Plato.",
"title": "Theological works"
},
{
"paragraph_id": 19,
"text": "The second book is largely devoted to the respective roles of faith and philosophical argument. Clement contends that while both are important, the fear of God is foremost, because through faith one receives divine wisdom. To Clement, scripture is an innately true primitive philosophy that is complemented by human reason through the Logos. Faith is voluntary, and the decision to believe is a crucial fundamental step in becoming closer to God. It is never irrational, as it is founded on the knowledge of the truth of the Logos, but all knowledge proceeds from faith, as first principles are unprovable outside a systematic structure.",
"title": "Theological works"
},
{
"paragraph_id": 20,
"text": "The third book covers asceticism. He discusses marriage, which is treated similarly in the Paedagogus. Clement rejects the Gnostic opposition to marriage, arguing that only men who are uninterested in women should remain celibate, and that sex is a positive good if performed within marriage for the purposes of procreation. He argues that this has not always been so: the Fall occurred because Adam and Eve succumbed to their desire for each other, and copulated before the allotted time. He argues against the idea that Christians should reject their family for an ascetic life, which stems from Luke, contending that Jesus would not have contradicted the precept to \"Honour thy Father and thy Mother\", one of the Ten Commandments. Clement concludes that asceticism will only be rewarded if the motivation is Christian in nature, and thus the asceticism of non-Christians such as the gymnosophists is pointless.",
"title": "Theological works"
},
{
"paragraph_id": 21,
"text": "Clement begins the fourth book with a belated explanation of the disorganized nature of the work, and gives a brief description of his aims for the remaining three or four books. The fourth book focuses on martyrdom. While all good Christians should be unafraid of death, Clement condemns those who actively seek out a martyr's death, arguing that they do not have sufficient respect for God's gift of life. He is ambivalent about whether any believing Christians can become martyrs by virtue of the manner of their death, or whether martyrdom is reserved for those who have lived exceptional lives. Marcionites cannot become martyrs, because they do not believe in the divinity of God the Father, so their sufferings are in vain. There is then a digression to the subject of theological epistemology. According to Clement, there is no way of empirically testing the existence of God the Father, because the Logos has revelatory, not analysable meaning, although Christ was an object of the senses. God had no beginning, and is the universal first principle.",
"title": "Theological works"
},
{
"paragraph_id": 22,
"text": "The fifth book returns to the subject of faith. Clement argues that truth, justice, and goodness can be seen only by the mind, not the eye; faith is a way of accessing the unseeable. He stresses that knowledge of God can only be achieved through faith once one's moral faults have been corrected. This parallels Clement's earlier insistence that martyrdom can only be achieved by those who practice their faith in Christ through good deeds, not those who simply profess their faith. God transcends matter entirely, and thus the materialist cannot truly come to know God. Although Christ was God incarnate, it is spiritual, not physical comprehension of him that is important.",
"title": "Theological works"
},
{
"paragraph_id": 23,
"text": "In the beginning of the sixth book, Clement intends to demonstrate that the works of Greek poets were derived from the prophetic books of the Bible. In order to reinforce his position that the Greeks were inclined toward plagiarism, he cites numerous instances of such inappropriate appropriation by classical Greek writers, reported second-hand from On Plagiarism, an anonymous 3rd-century BC work sometimes ascribed to Aretades. Clement then digresses to the subject of sin and hell, arguing that Adam was not perfect when created, but given the potential to achieve perfection. He espouses broadly universalist doctrine, holding that Christ's promise of salvation is available to all, even those condemned to hell.",
"title": "Theological works"
},
{
"paragraph_id": 24,
"text": "The final extant book begins with a description of the nature of Christ, and that of the true Christian, who aims to be as similar as possible to both the Father and the Son. Clement then criticizes the simplistic anthropomorphism of most ancient religions, quoting Xenophanes' famous description of African, Thracian, and Egyptian deities. He indicates that the Greek deities may also have had their origins in the personification of material objects: Ares representing iron, and Dionysus wine. Prayer, and the relationship between love and knowledge are then discussed. Corinthians 13:8 seems to contradict the characterization of the true Christian as one who knows; but to Clement knowledge vanishes only in that it is subsumed by the universal love expressed by the Christian in reverence for the Creator. Following Socrates, he argues that vice arises from a state of ignorance, not from intention. The Christian is a \"laborer in God's vineyard\", responsible both for one's own path to salvation and that of one's neighbor. The work ends with an extended passage against the contemporary divisions and heresies within the church.",
"title": "Theological works"
},
{
"paragraph_id": 25,
"text": "Besides the great trilogy, Clement's only other extant work is the treatise Salvation for the Rich, also known as Who is the Rich Man who is Saved? written c. 203 AD Having begun with a scathing criticism of the corrupting effects of money and misguided servile attitudes toward the wealthy, Clement discusses the implications of Mark 10:25. The rich are either unconvinced by the promise of eternal life, or unaware of the conflict between the possession of material and spiritual wealth, and the good Christian has a duty to guide them toward a better life through the Gospel. Jesus' words are not to be taken literally — the supercelestial (ὑπερουράνιος) meanings should be sought in which the true route to salvation is revealed. The holding of material wealth in itself is not a wrong, so long as it is used charitably, but Christians should be careful not to let their wealth dominate their spirit. It is more important to give up sinful passions than external wealth. If the rich are to be saved, all they must do is to follow the two commandments, and while material wealth is of no value to God, it can be used to alleviate the suffering of neighbors.",
"title": "Theological works"
},
{
"paragraph_id": 26,
"text": "Other known works exist in fragments alone, including the four eschatological works in the secret tradition: Hypotyposes, Excerpta ex Theodoto, Eclogae Propheticae, and the Adumbraetiones. These cover Clement's celestial hierarchy, a complex schema in which the universe is headed by the Face of God, below which lie seven protoctists, followed by archangels, angels, and humans. According to Jean Daniélou, this schema is inherited from a Judaeo-Christian esotericism, followed by the Apostles, which was only imparted orally to those Christians who could be trusted with such mysteries. The proctocists are the first beings created by God, and act as priests to the archangels. Clement identifies them both as the \"Eyes of the Lord\" and with the Thrones. Clement characterizes the celestial forms as entirely different from anything earthly, although he argues that members of each order only seem incorporeal to those of lower orders. According to the Eclogae Propheticae, every thousand years every member of each order moves up a degree, and thus humans can become angels. Even the protoctists can be elevated, although their new position in the hierarchy is not clearly defined. The apparent contradiction between the fact that there can be only seven protoctists but also a vast number of archangels to be promoted to their order is problematical. One modern solution regards the story as an example of \"interiorized apocalypticism\": imagistic details are not to be taken literally, but as symbolizing interior transformation.",
"title": "Theological works"
},
{
"paragraph_id": 27,
"text": "The titles of several lost works are known because of a list in Eusebius' Ecclesiastical History, 6.13.1–3. They include the Outlines, in eight books, and Against Judaizers. Others are known only from mentions in Clement's own writings, including On Marriage and On Prophecy, although few are attested by other writers and it is difficult to separate works that he intended to write from those that were completed.",
"title": "Theological works"
},
{
"paragraph_id": 28,
"text": "The Mar Saba letter was attributed to Clement by Morton Smith, but there remains much debate today over whether it is an authentic letter from Clement, an ancient pseudepigraph, or a modern forgery. If authentic, its main significance would be in its relating that the Apostle Mark came to Alexandria from Rome and there, wrote a more spiritual Gospel, which he entrusted to the Church in Alexandria on his death; if genuine, the letter pushes back the tradition related by Eusebius connecting Mark with Alexandria by a century.",
"title": "Theological works"
},
{
"paragraph_id": 29,
"text": "Eusebius, the fourth-century early church historian, is the first writer to provide an account of Clement's life and works, in his Ecclesiastical History, 5.11.1–5, 6.6.1 He provides a list of Clement's works, biographical information, and an extended quotation from the Stromata. From this and other accounts, it is evident that Clement was highly revered by his contemporaries and later patristic figures. As J.B. Mayor observes, “The piety and learning of Clement, his power as a teacher and philosopher, are spoken of in the highest terms by succeeding fathers.”",
"title": "Legacy"
},
{
"paragraph_id": 30,
"text": "In the same work, Eusebius cites Alexander of Jerusalem (180-251) lauding “the holy Clement, who was both my master and benefactor,” describing him as one of the “blessed fathers who have trod the path before us,” while Eusebius himself is quoted as calling him “an incomparable master of Christian philosophy.” Jerome (342-420) calls Clement “the most learned of men,” recording that his writings are “full of eloquence and learning, both in sacred Scripture and in secular literature.” The aforementioned Alexander of Jerusalem is quoted by Jerome praising “the blessed presbyter Clement, a man illustrious and approved.” According to Theodoret (393-450), “he surpassed all others, and was a holy man.” Likewise, Cyril of Alexandria (376-444) says Clement was “a man admirably learned and skillful, and one that searched to the depths all the learning of the Greeks, with an exactness rarely attained before.” Maximus the Confessor (580-662) refers to him reverentially as “the great Clement.”",
"title": "Legacy"
},
{
"paragraph_id": 31,
"text": "More recently, scholars have acknowledged Clement's primacy and importance in various respects. He has been called “the first Christian scholar” (Shelley), “the first systematic teacher of Christian doctrine” (Patrick), “the first great teacher of philosophical Christianity” (Hatch), “the first self-conscious theologian and ethicist” (Backhouse), “the first great Christian teacher in Alexandria” (Needham), “the founder of Christian philosophical theology” (Bray), “the true creator of ecclesiastical theology” (DeFaye), “the first major commentator on the Bible” (Bray), “the founder of Christian literature” (ANF), “the great founder of the Alexandrian School” (Coxe), a “pioneer of Christian scholarship” (ACCS), “an intellectual giant in the early church” (Kruger), “that man of genius who introduced Christianity to itself, as reflected in the burnished mirror of his intellect” (Coxe), and “the most inquisitive and independent spirit that has perhaps ever appeared in the Church” (DeFaye).",
"title": "Legacy"
},
{
"paragraph_id": 32,
"text": "Stylistically, it has been noted that “his writings shine with a happy, peaceful, optimistic spirit; reading them can be a remarkably uplifting experience” (Needham). “He loves God’s creation and sees it as good; he gives us a warm, joyous picture of life; he is richly human, sane, and moderate” (Ferguson). Additionally, Clement's works “are a storehouse of curious ancient lore—a museum of the fossil remains of the beauties and monstrosities of the world of pagan antiquity, during all the epochs and phases of its history” (Wilson). “His prodigious erudition was unsurpassed even by that of Origen” (Cayre). “I do not know where we shall look for a purer or a truer man than this Clemens of Alexandria; he seems to me one of the old fathers whom we should all have reverenced most as a teacher, and loved best as a friend” (Maurice).",
"title": "Legacy"
},
{
"paragraph_id": 33,
"text": "Nonetheless, there have been a few dissenting voices. Photios I of Constantinople writes polemically against Clement's theology in the Bibliotheca, although he also is appreciative of Clement's learning and the literary merits of his work. In particular, he is highly critical of the Hypotyposes, a work of biblical exegesis of which only a few fragments have survived. Photios compared Clement's treatise, which, like his other works, was highly syncretic, featuring ideas of Hellenistic, Jewish, and Gnostic origin, unfavorably against the prevailing orthodoxy of the 9th century. Amongst the particular ideas Photios deemed heretical were:",
"title": "Legacy"
},
{
"paragraph_id": 34,
"text": "However, it is not clear that these are accurate representations of Clement's actual beliefs, since his extant writings appear to be mostly in line with what would come to be considered orthodox Christian theology. It has been suggested that Photios may have misunderstood Clement to be speaking for himself when he was often quoting from Gnostics and other sects without agreeing with their teachings.",
"title": "Legacy"
},
{
"paragraph_id": 35,
"text": "As one of the earliest of the Church fathers whose works have survived, he is the subject of a significant amount of recent academic work, focusing on, among other things, his exegesis of scripture, his Logos-theology and pneumatology, his apparent belief in apokatastasis, the relationship between his thought and non-Christian philosophy, and his influence on Origen.",
"title": "Legacy"
},
{
"paragraph_id": 36,
"text": "Up until the 17th century Clement was venerated as a saint in the Roman Catholic Church. His name was to be found in the martyrologies, and his feast fell on the fourth of December, but when the Roman Martyrology was revised by Pope Clement VIII his name was dropped from the calendar on the advice of Cardinal Baronius. Benedict XIV maintained this decision of his predecessor on the grounds that Clement's life was little known, that he had never obtained public cultus in the Church, and that some of his doctrines were, if not erroneous, at least suspect.",
"title": "Legacy"
},
{
"paragraph_id": 37,
"text": "Although Clement is not widely venerated in Eastern Christianity, the Prologue of Ohrid repeatedly refers to him as a saint, as do various Orthodox authorities including the Greek Metropolitan Kallinikos of Edessa.",
"title": "Legacy"
},
{
"paragraph_id": 38,
"text": "The Coptic tradition considers Clement a saint. Saint Clement Coptic Orthodox Christian Academy in Nashville, Tennessee, is specifically named after him.",
"title": "Legacy"
},
{
"paragraph_id": 39,
"text": "Clement is commemorated in Anglicanism.",
"title": "Legacy"
},
{
"paragraph_id": 40,
"text": "Clement taught that faith was the basis of salvation, however he also believed that faith was also the basis of \"gnosis\" which for him mean spiritual and mystical knowledge. Clement of Alexandria appropriated the word \"gnosis\" from what the Gnostics used, whom he opposed, but re-interpreted the word in a more Christian manner. Clement of Alexandria distinguished between two kinds of Christians, a pistic Christian who lives according to God's law, and the Christian gnostic who lives on the level of the gospel and responds by discipline and love. Clement's views of gnosis can be considered a forerunner of monasticism that began in Egypt after his death.",
"title": "Theology"
},
{
"paragraph_id": 41,
"text": "Clement suggested that philosophy was a preparatory discipline to the Greek world that would lead them to accept Christianity, and often sought to harmonize insights of Greek philosophy with biblical teaching. He defined philosophy as \"the desire for true being and the studies which lead to it.\" Clement has been described as \"the founder of what was to become the great tradition of Christian philosophical theology.\" He also was a forerunner to some views of Augustine, including arguably the just war theory and the theory of the two cities.",
"title": "Theology"
},
{
"paragraph_id": 42,
"text": "Clement is often regarded as one of the first Christian universalists, espousing belief in the eventual salvation of every person (though not with the level of systematic clarity of his disciple Origen). Clement understood divine punishment as corrective and remedial rather than merely retributive or destructive. He writes, \"[God] destroys no one but gives salvation to all.\" \"He bestows salvation on all mankind.\" \"He indeed saves all universally—some as converted by punishments, others by voluntary submission with dignity of honor—that to Him every knee shall bow, both of beings in heaven, and on earth, and under the earth; that is, angels, and men, and souls departed this life.\" \"God's punishments are saving and disciplinary, leading to conversion; choosing rather the repentance than the death of a sinner.\" \"I will grant that He punishes the disobedient, for punishment is for the good and advantage of him who is punished, for it is the correction of a refractory subject.\" \"For all things are arranged with a view to the salvation of the universe by the Lord of the universe, both generally and particularly.\"",
"title": "Theology"
},
{
"paragraph_id": 43,
"text": "For Clement, disciplining the body will help the Christian discipline his soul, which is why he gives detailed instructions on proper Christian conduct, decorum, and relationships in the second and third books of The Instructor. Only once the passions are subject to the authority of the Word (or reason) can the Christian embark on an advanced course of philosophical study and contemplation.",
"title": "Theology"
},
{
"paragraph_id": 44,
"text": "Clement adopts a position that will give rise to a whole stream of later Christian thought: true philosophy and authentic human knowledge have their origin in the Logos, which is the unique source of all truth. He accepts the conception of παιδεία as he conducts the wisdom taught by the Logos through education in the sacred letters: on the one hand, the Greek παιδεία prepares the mind of the Christian to distinguish and defend the truth, and, on the other, the liberal arts help the new Christian to direct all his efforts towards the truly useful of each particular discipline, geometry, music, grammar and philosophy.",
"title": "Theology"
},
{
"paragraph_id": 45,
"text": "Notably (considering the time period), Clement seemed to advocate for the equality of women and men in the area of education, at least within the context of Christian spirituality and ethics. He wrote, \"Let us recognize, too, that both men and women practice the same sort of virtue; surely, if there is but one God for both, then there is but one Educator for both.\"",
"title": "Theology"
},
{
"paragraph_id": 46,
"text": "Clement opposed a literal interpretation of the command \"sell what you have and give to the poor,\" and argued that the Bible does not command every person to renounce all property, and that wealth can be used either for good or evil. Yet he seems to have done so tentatively (and perhaps reluctantly), to address the concerns of upper-class converts, while simultaneously warning of the dangers of wealth.",
"title": "Theology"
},
{
"paragraph_id": 47,
"text": "Clement believed that the days mentioned in Genesis are allegorical. Clement assumed a double creation, one of an invisible world and the second being material creation. He believed that formless matter existed before the creation of the world, being influenced by Plato. Clement tried to interpret Genesis 6 in harmony with the Book of Enoch.",
"title": "Theology"
},
{
"paragraph_id": 48,
"text": "The first person in church history to introduce a view of an invisible and a visible church is Clement of Alexandria. Because Clement saw the Protoevangelium of James as canonical, it could imply he believed in the perpetual virginity of Mary, though some have argued that he does not seem to believe in the sinlessness of Mary.",
"title": "Theology"
},
{
"paragraph_id": 49,
"text": "Clement of Alexandria interprets \"Fire of Wisdom\" which prevades the soul as by a baptism.",
"title": "Theology"
},
{
"paragraph_id": 50,
"text": "Clement of Alexandria used the word \"symbol\" to define the Eucharist, and interpreted John 6 to be an allegory about faith, however his views on real presence are disputed.",
"title": "Theology"
},
{
"paragraph_id": 51,
"text": "Clement of Alexandria was apparently an amillennialist.",
"title": "Theology"
}
] | Titus Flavius Clemens, also known as Clement of Alexandria, was a Christian theologian and philosopher who taught at the Catechetical School of Alexandria. Among his pupils were Origen and Alexander of Jerusalem. A convert to Christianity, he was an educated man who was familiar with classical Greek philosophy and literature. As his three major works demonstrate, Clement was influenced by Hellenistic philosophy to a greater extent than any other Christian thinker of his time, and in particular, by Plato and the Stoics. His secret works, which exist only in fragments, suggest that he was familiar with pre-Christian Jewish esotericism and Gnosticism as well. In one of his works he argued that Greek philosophy had its origin among non-Greeks, claiming that both Plato and Pythagoras were taught by Egyptian scholars. Clement is usually regarded as a Church Father. He is venerated as a saint in Coptic Christianity, Eastern Catholicism, Ethiopian Christianity, and Anglicanism. He was revered in Western Catholicism until 1586, when his name was removed from the Roman Martyrology by Pope Sixtus V on the advice of Baronius. The Eastern Orthodox Church officially stopped any veneration of Clement of Alexandria in the 10th century. Nonetheless, he is still often referred to as "Saint Clement of Alexandria" by both Eastern Orthodox and Roman Catholic authors. | 2001-12-05T07:41:38Z | 2023-12-30T03:41:31Z | [
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] | https://en.wikipedia.org/wiki/Clement_of_Alexandria |
7,344 | Cogito, ergo sum | The Latin cogito, ergo sum, usually translated into English as "I think, therefore I am", is the "first principle" of René Descartes's philosophy. He originally published it in French as je pense, donc je suis in his 1637 Discourse on the Method, so as to reach a wider audience than Latin would have allowed. It later appeared in Latin in his Principles of Philosophy, and a similar phrase also featured prominently in his Meditations on First Philosophy. The dictum is also sometimes referred to as the cogito. As Descartes explained in a margin note, "we cannot doubt of our existence while we doubt." In the posthumously published The Search for Truth by Natural Light, he expressed this insight as dubito, ergo sum, vel, quod idem est, cogito, ergo sum ("I doubt, therefore I am — or what is the same — I think, therefore I am"). Antoine Léonard Thomas, in a 1765 essay in honor of Descartes presented it as dubito, ergo cogito, ergo sum ("I doubt, therefore I think, therefore I am").
Descartes's statement became a fundamental element of Western philosophy, as it purported to provide a certain foundation for knowledge in the face of radical doubt. While other knowledge could be a figment of imagination, deception, or mistake, Descartes asserted that the very act of doubting one's own existence served—at minimum—as proof of the reality of one's own mind; there must be a thinking entity—in this case the self—for there to be a thought.
One critique of the dictum, first suggested by Pierre Gassendi, is that it presupposes that there is an "I" which must be doing the thinking. According to this line of criticism, the most that Descartes was entitled to say was that "thinking is occurring", not that "I am thinking".
Descartes first wrote the phrase in French in his 1637 Discourse on the Method. He referred to it in Latin without explicitly stating the familiar form of the phrase in his 1641 Meditations on First Philosophy. The earliest written record of the phrase in Latin is in his 1644 Principles of Philosophy, where, in a margin note (see below), he provides a clear explanation of his intent: "[W]e cannot doubt of our existence while we doubt". Fuller forms of the phrase are attributable to other authors.
The phrase first appeared (in French) in Descartes's 1637 Discourse on the Method in the first paragraph of its fourth part:
In 1641, Descartes published (in Latin) Meditations on first philosophy in which he referred to the proposition, though not explicitly as "cogito, ergo sum" in Meditation II:
In 1644, Descartes published (in Latin) his Principles of Philosophy where the phrase "ego cogito, ergo sum" appears in Part 1, article 7:
Descartes's margin note for the above paragraph is:
Descartes, in a lesser-known posthumously published work dated as written ca. 1647 and titled La Recherche de la Vérité par La Lumiere Naturale (The Search for Truth by Natural Light), provides his only known phrasing of the cogito as cogito, ergo sum and admits that his insight is also expressible as dubito, ergo sum:
The proposition is sometimes given as dubito, ergo cogito, ergo sum. This form was penned by the French literary critic, Antoine Léonard Thomas, in an award-winning 1765 essay in praise of Descartes, where it appeared as "Puisque je doute, je pense; puisque je pense, j'existe" ('Since I doubt, I think; since I think, I exist'). With rearrangement and compaction, the passage translates to "I doubt, therefore I think, therefore I am," or in Latin, "dubito, ergo cogito, ergo sum." This aptly captures Descartes's intent as expressed in his posthumously published La Recherche de la Vérité par La Lumiere Naturale as noted above: I doubt, therefore I am — or what is the same — I think, therefore I am.
A further expansion, dubito, ergo cogito, ergo sum—res cogitans ("…—a thinking thing") extends the cogito with Descartes's statement in the subsequent Meditation, "Ego sum res cogitans, id est dubitans, affirmans, negans, pauca intelligens, multa ignorans, volens, nolens, imaginans etiam et sentiens…" ("I am a thinking [conscious] thing, that is, a being who doubts, affirms, denies, knows a few objects, and is ignorant of many,-- who loves, hates, wills, refuses, who imagines likewise, and perceives"). This has been referred to as "the expanded cogito."
While the Latin translation cōgitō may be translated rather easily as "I think/ponder/visualize", je pense does not indicate whether the verb form corresponds to the English simple present or progressive aspect. Technically speaking, the French lemma pense by itself is actually the result of numerous different conjugations of the verb penser (to think) – it could mean "I think... (something)"/"He thinks... (something)", "I think."/"He thinks.", or even "You (must) think... (something).", thereby necessitating the use of the wider context, or a pronoun, to understand the meaning. In the case of je pense, a pronoun is already included, je or "I", but this still leaves the question of whether "I think..." or "I think." is intended. Therefore, translation needs a larger context to determine aspect.
Following John Lyons (1982), Vladimir Žegarac notes, "The temptation to use the simple present is said to arise from the lack of progressive forms in Latin and French, and from a misinterpretation of the meaning of cogito as habitual or generic" (cf. gnomic aspect). Also following Lyons, Ann Banfield writes, "In order for the statement on which Descartes's argument depends to represent certain knowledge,… its tense must be a true present—in English, a progressive,… not as 'I think' but as 'I am thinking, in conformity with the general translation of the Latin or French present tense in such nongeneric, nonstative contexts." Or in the words of Simon Blackburn, "Descartes's premise is not 'I think' in the sense of 'I ski', which can be true even if you are not at the moment skiing. It is supposed to be parallel to 'I am skiing'."
The similar translation "I am thinking, therefore I exist" of Descartes's correspondence in French ("je pense, donc je suis") appears in The Philosophical Writings of Descartes by Cottingham et al. (1988).
The earliest known translation as "I am thinking, therefore I am" is from 1872 by Charles Porterfield Krauth.
Fumitaka Suzuki writes "Taking consideration of Cartesian theory of continuous creation, which theory was developed especially in the Meditations and in the Principles, we would assure that 'I am thinking, therefore I am/exist' is the most appropriate English translation of 'ego cogito, ergo sum'."
Alexis Deodato S. Itao notes that cogito, ergo sum is "literally 'I think, therefore I am'." Others differ: 1) "[A] precise English translation will read as 'I am thinking, therefore I exist'.; and 2) "[S]ince Descartes ... emphasized that existence is such an important 'notion,' a better translation is 'I am thinking, therefore I exist.'"
Descartes wrote this phrase as such only once, in the posthumously published lesser-known work noted above, The Search for Truth by Natural Light. It appeared there mid-sentence, uncapitalized, and with a comma. (Commas were not used in Classical Latin but were a regular feature of scholastic Latin, the Latin Descartes "had learned in a Jesuit college at La Flèche.") Most modern reference works show it with a comma, but it is often presented without a comma in academic work and in popular usage. In Descartes's Principia Philosophiae, the proposition appears as ego cogito, ergo sum.
As put succinctly by Krauth (1872), "That cannot doubt which does not think, and that cannot think which does not exist. I doubt, I think, I exist."
The phrase cogito, ergo sum is not used in Descartes's Meditations on First Philosophy but the term "the cogito" is used to refer to an argument from it. In the Meditations, Descartes phrases the conclusion of the argument as "that the proposition, I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind" (Meditation II). George Henry Lewes says Descartes "has told us that [his objective] was to find a starting point from which to reason—to find an irreversible certainty. And where did he find this? In his own consciousness. Doubt as I may, I cannot doubt of my own existence, because my very doubts reveal to me a something which doubts. You may call this an assumption, if you will; I point out the fact as one above and beyond all logic; which logic can neither prove nor disprove; but which must always remain an irreversible certainty, and as such a fitting basis of philosophy."
At the beginning of the second meditation, having reached what he considers to be the ultimate level of doubt—his argument from the existence of a deceiving god—Descartes examines his beliefs to see if any have survived the doubt. In his belief in his own existence, he finds that it is impossible to doubt that he exists. Even if there were a deceiving god (or an evil demon), one's belief in their own existence would be secure, for there is no way one could be deceived unless one existed in order to be deceived.
But I have convinced myself that there is absolutely nothing in the world, no sky, no earth, no minds, no bodies. Does it now follow that I, too, do not exist? No. If I convinced myself of something [or thought anything at all], then I certainly existed. But there is a deceiver of supreme power and cunning who deliberately and constantly deceives me. In that case, I, too, undoubtedly exist, if he deceives me; and let him deceive me as much as he can, he will never bring it about that I am nothing, so long as I think that I am something. So, after considering everything very thoroughly, I must finally conclude that the proposition, I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind. (AT VII 25; CSM II 16–17)
There are three important notes to keep in mind here. First, he claims only the certainty of his own existence from the first-person point of view — he has not proved the existence of other minds at this point. This is something that has to be thought through by each of us for ourselves, as we follow the course of the meditations. Second, he does not say that his existence is necessary; he says that if he thinks, then necessarily he exists (see the instantiation principle). Third, this proposition "I am, I exist" is held true not based on a deduction (as mentioned above) or on empirical induction but on the clarity and self-evidence of the proposition. Descartes does not use this first certainty, the cogito, as a foundation upon which to build further knowledge; rather, it is the firm ground upon which he can stand as he works to discover further truths. As he puts it:
Archimedes used to demand just one firm and immovable point in order to shift the entire earth; so I too can hope for great things if I manage to find just one thing, however slight, that is certain and unshakable. (AT VII 24; CSM II 16)
According to many Descartes specialists, including Étienne Gilson, the goal of Descartes in establishing this first truth is to demonstrate the capacity of his criterion — the immediate clarity and distinctiveness of self-evident propositions — to establish true and justified propositions despite having adopted a method of generalized doubt. As a consequence of this demonstration, Descartes considers science and mathematics to be justified to the extent that their proposals are established on a similarly immediate clarity, distinctiveness, and self-evidence that presents itself to the mind. The originality of Descartes's thinking, therefore, is not so much in expressing the cogito—a feat accomplished by other predecessors, as we shall see—but on using the cogito as demonstrating the most fundamental epistemological principle, that science and mathematics are justified by relying on clarity, distinctiveness, and self-evidence. Baruch Spinoza in "Principia philosophiae cartesianae" at its Prolegomenon identified "cogito ergo sum" the "ego sum cogitans" (I am a thinking being) as the thinking substance with his ontological interpretation.
Although the idea expressed in cogito, ergo sum is widely attributed to Descartes, he was not the first to mention it. Plato spoke about the "knowledge of knowledge" (Greek: νόησις νοήσεως, nóesis noéseos) and Aristotle explains the idea in full length:
But if life itself is good and pleasant…and if one who sees is conscious that he sees, one who hears that he hears, one who walks that he walks and similarly for all the other human activities there is a faculty that is conscious of their exercise, so that whenever we perceive, we are conscious that we perceive, and whenever we think, we are conscious that we think, and to be conscious that we are perceiving or thinking is to be conscious that we exist... (Nicomachean Ethics, 1170a 25 ff.)
The Cartesian statement was interpreted to be an Aristotelian syllogism where the premise that all thinkers are also beings is not made explicit.
In the late sixth or early fifth century BC, Parmenides is quoted as saying "For to be aware and to be are the same". (Fragment B3)
In the early fifth century AD, Augustine of Hippo in De Civitate Dei (book XI, 26) affirmed his certain knowledge of his own existence, and added: "So far as these truths are concerned, I do not at all fear the arguments of the Academics when they say, What if you are mistaken? For if I am mistaken, I exist." This formulation (si fallor, sum) is sometimes called the Augustinian cogito. In 1640, Descartes wrote to thank Andreas Colvius (a friend of Descartes's mentor, Isaac Beeckman) for drawing his attention to Augustine:
I am obliged to you for drawing my attention to the passage of St Augustine relevant to my I am thinking, therefore I exist. I went today to the library of this town to read it, and I do indeed find that he does use it to prove the certainty of our existence. He goes on to show that there is a certain likeness of the Trinity in us, in that we exist, we know that we exist, and we love the existence and the knowledge we have. I, on the other hand, use the argument to show that this I which is thinking is an immaterial substance with no bodily element. These are two very different things. In itself it is such a simple and natural thing to infer that one exists from the fact that one is doubting that it could have occurred to any writer. But I am very glad to find myself in agreement with St Augustine, if only to hush the little minds who have tried to find fault with the principle.
Another predecessor was Avicenna's "Floating Man" thought experiment on human self-awareness and self-consciousness.
The 8th century Hindu philosopher Adi Shankara wrote, in a similar fashion, that no one thinks 'I am not', arguing that one's existence cannot be doubted, as there must be someone there to doubt.
Spanish philosopher Gómez Pereira in his 1554 work De Inmortalitate Animae, wrote "nosco me aliquid noscere, & quidquid noscit, est, ergo ego sum" ('I know that I know something, anyone who knows is, therefore I am').
In Descartes, The Project of Pure Enquiry, Bernard Williams provides a history and full evaluation of this issue. The first to raise the "I" problem was Pierre Gassendi, who in his Disquisitio Metaphysica, as noted by Saul Fisher "points out that recognition that one has a set of thoughts does not imply that one is a particular thinker or another. …[T]he only claim that is indubitable here is the agent-independent claim that there is cognitive activity present."
The objection, as presented by Georg Lichtenberg, is that rather than supposing an entity that is thinking, Descartes should have said: "thinking is occurring." That is, whatever the force of the cogito, Descartes draws too much from it; the existence of a thinking thing, the reference of the "I," is more than the cogito can justify. Friedrich Nietzsche criticized the phrase in that it presupposes that there is an "I", that there is such an activity as "thinking", and that "I" know what "thinking" is. He suggested a more appropriate phrase would be "it thinks" wherein the "it" could be an impersonal subject as in the sentence "It is raining."
The Danish philosopher Søren Kierkegaard calls the phrase a tautology in his Concluding Unscientific Postscript. He argues that the cogito already presupposes the existence of "I", and therefore concluding with existence is logically trivial. Kierkegaard's argument can be made clearer if one extracts the premise "I think" into the premises "'x' thinks" and "I am that 'x'", where "x" is used as a placeholder in order to disambiguate the "I" from the thinking thing.
Here, the cogito has already assumed the "I"'s existence as that which thinks. For Kierkegaard, Descartes is merely "developing the content of a concept", namely that the "I", which already exists, thinks. As Kierkegaard argues, the proper logical flow of argument is that existence is already assumed or presupposed in order for thinking to occur, not that existence is concluded from that thinking.
Bernard Williams claims that what we are dealing with when we talk of thought, or when we say "I am thinking," is something conceivable from a third-person perspective—namely objective "thought-events" in the former case, and an objective thinker in the latter. He argues, first, that it is impossible to make sense of "there is thinking" without relativizing it to something. However, this something cannot be Cartesian egos, because it is impossible to differentiate objectively between things just on the basis of the pure content of consciousness. The obvious problem is that, through introspection, or our experience of consciousness, we have no way of moving to conclude the existence of any third-personal fact, to conceive of which would require something above and beyond just the purely subjective contents of the mind.
The American writer, professor, philosopher, intersectional feminist and civil rights activist Audre Lorde responded that while 'The white fathers told us: I think, therefore I am. The black mother within each of us—the poet—whispers in our dreams: I feel, therefore I can be free', thus emphasising emotion and feeling as another important determiner of truth and our shared humanity.
As a critic of Cartesian subjectivity, Heidegger sought to ground human subjectivity in death as that certainty which individualizes and authenticates our being. As he wrote in 1925 in History of the Concept of Time:
This certainty, that "I myself am in that I will die," is the basic certainty of Dasein itself. It is a genuine statement of Dasein, while cogito sum is only the semblance of such a statement. If such pointed formulations mean anything at all, then the appropriate statement pertaining to Dasein in its being would have to be sum moribundus [I am in dying], moribundus not as someone gravely ill or wounded, but insofar as I am, I am moribundus. The MORIBUNDUS first gives the SUM its sense.
The Scottish philosopher John Macmurray rejects the cogito outright in order to place action at the center of a philosophical system he entitles the Form of the Personal. "We must reject this, both as standpoint and as method. If this be philosophy, then philosophy is a bubble floating in an atmosphere of unreality." The reliance on thought creates an irreconcilable dualism between thought and action in which the unity of experience is lost, thus dissolving the integrity of our selves, and destroying any connection with reality. In order to formulate a more adequate cogito, Macmurray proposes the substitution of "I do" for "I think," ultimately leading to a belief in God as an agent to whom all persons stand in relation. | [
{
"paragraph_id": 0,
"text": "The Latin cogito, ergo sum, usually translated into English as \"I think, therefore I am\", is the \"first principle\" of René Descartes's philosophy. He originally published it in French as je pense, donc je suis in his 1637 Discourse on the Method, so as to reach a wider audience than Latin would have allowed. It later appeared in Latin in his Principles of Philosophy, and a similar phrase also featured prominently in his Meditations on First Philosophy. The dictum is also sometimes referred to as the cogito. As Descartes explained in a margin note, \"we cannot doubt of our existence while we doubt.\" In the posthumously published The Search for Truth by Natural Light, he expressed this insight as dubito, ergo sum, vel, quod idem est, cogito, ergo sum (\"I doubt, therefore I am — or what is the same — I think, therefore I am\"). Antoine Léonard Thomas, in a 1765 essay in honor of Descartes presented it as dubito, ergo cogito, ergo sum (\"I doubt, therefore I think, therefore I am\").",
"title": ""
},
{
"paragraph_id": 1,
"text": "Descartes's statement became a fundamental element of Western philosophy, as it purported to provide a certain foundation for knowledge in the face of radical doubt. While other knowledge could be a figment of imagination, deception, or mistake, Descartes asserted that the very act of doubting one's own existence served—at minimum—as proof of the reality of one's own mind; there must be a thinking entity—in this case the self—for there to be a thought.",
"title": ""
},
{
"paragraph_id": 2,
"text": "One critique of the dictum, first suggested by Pierre Gassendi, is that it presupposes that there is an \"I\" which must be doing the thinking. According to this line of criticism, the most that Descartes was entitled to say was that \"thinking is occurring\", not that \"I am thinking\".",
"title": ""
},
{
"paragraph_id": 3,
"text": "Descartes first wrote the phrase in French in his 1637 Discourse on the Method. He referred to it in Latin without explicitly stating the familiar form of the phrase in his 1641 Meditations on First Philosophy. The earliest written record of the phrase in Latin is in his 1644 Principles of Philosophy, where, in a margin note (see below), he provides a clear explanation of his intent: \"[W]e cannot doubt of our existence while we doubt\". Fuller forms of the phrase are attributable to other authors.",
"title": "In Descartes's writings"
},
{
"paragraph_id": 4,
"text": "The phrase first appeared (in French) in Descartes's 1637 Discourse on the Method in the first paragraph of its fourth part:",
"title": "In Descartes's writings"
},
{
"paragraph_id": 5,
"text": "In 1641, Descartes published (in Latin) Meditations on first philosophy in which he referred to the proposition, though not explicitly as \"cogito, ergo sum\" in Meditation II:",
"title": "In Descartes's writings"
},
{
"paragraph_id": 6,
"text": "In 1644, Descartes published (in Latin) his Principles of Philosophy where the phrase \"ego cogito, ergo sum\" appears in Part 1, article 7:",
"title": "In Descartes's writings"
},
{
"paragraph_id": 7,
"text": "Descartes's margin note for the above paragraph is:",
"title": "In Descartes's writings"
},
{
"paragraph_id": 8,
"text": "Descartes, in a lesser-known posthumously published work dated as written ca. 1647 and titled La Recherche de la Vérité par La Lumiere Naturale (The Search for Truth by Natural Light), provides his only known phrasing of the cogito as cogito, ergo sum and admits that his insight is also expressible as dubito, ergo sum:",
"title": "In Descartes's writings"
},
{
"paragraph_id": 9,
"text": "The proposition is sometimes given as dubito, ergo cogito, ergo sum. This form was penned by the French literary critic, Antoine Léonard Thomas, in an award-winning 1765 essay in praise of Descartes, where it appeared as \"Puisque je doute, je pense; puisque je pense, j'existe\" ('Since I doubt, I think; since I think, I exist'). With rearrangement and compaction, the passage translates to \"I doubt, therefore I think, therefore I am,\" or in Latin, \"dubito, ergo cogito, ergo sum.\" This aptly captures Descartes's intent as expressed in his posthumously published La Recherche de la Vérité par La Lumiere Naturale as noted above: I doubt, therefore I am — or what is the same — I think, therefore I am.",
"title": "In Descartes's writings"
},
{
"paragraph_id": 10,
"text": "A further expansion, dubito, ergo cogito, ergo sum—res cogitans (\"…—a thinking thing\") extends the cogito with Descartes's statement in the subsequent Meditation, \"Ego sum res cogitans, id est dubitans, affirmans, negans, pauca intelligens, multa ignorans, volens, nolens, imaginans etiam et sentiens…\" (\"I am a thinking [conscious] thing, that is, a being who doubts, affirms, denies, knows a few objects, and is ignorant of many,-- who loves, hates, wills, refuses, who imagines likewise, and perceives\"). This has been referred to as \"the expanded cogito.\"",
"title": "In Descartes's writings"
},
{
"paragraph_id": 11,
"text": "While the Latin translation cōgitō may be translated rather easily as \"I think/ponder/visualize\", je pense does not indicate whether the verb form corresponds to the English simple present or progressive aspect. Technically speaking, the French lemma pense by itself is actually the result of numerous different conjugations of the verb penser (to think) – it could mean \"I think... (something)\"/\"He thinks... (something)\", \"I think.\"/\"He thinks.\", or even \"You (must) think... (something).\", thereby necessitating the use of the wider context, or a pronoun, to understand the meaning. In the case of je pense, a pronoun is already included, je or \"I\", but this still leaves the question of whether \"I think...\" or \"I think.\" is intended. Therefore, translation needs a larger context to determine aspect.",
"title": "Translation"
},
{
"paragraph_id": 12,
"text": "Following John Lyons (1982), Vladimir Žegarac notes, \"The temptation to use the simple present is said to arise from the lack of progressive forms in Latin and French, and from a misinterpretation of the meaning of cogito as habitual or generic\" (cf. gnomic aspect). Also following Lyons, Ann Banfield writes, \"In order for the statement on which Descartes's argument depends to represent certain knowledge,… its tense must be a true present—in English, a progressive,… not as 'I think' but as 'I am thinking, in conformity with the general translation of the Latin or French present tense in such nongeneric, nonstative contexts.\" Or in the words of Simon Blackburn, \"Descartes's premise is not 'I think' in the sense of 'I ski', which can be true even if you are not at the moment skiing. It is supposed to be parallel to 'I am skiing'.\"",
"title": "Translation"
},
{
"paragraph_id": 13,
"text": "The similar translation \"I am thinking, therefore I exist\" of Descartes's correspondence in French (\"je pense, donc je suis\") appears in The Philosophical Writings of Descartes by Cottingham et al. (1988).",
"title": "Translation"
},
{
"paragraph_id": 14,
"text": "The earliest known translation as \"I am thinking, therefore I am\" is from 1872 by Charles Porterfield Krauth.",
"title": "Translation"
},
{
"paragraph_id": 15,
"text": "Fumitaka Suzuki writes \"Taking consideration of Cartesian theory of continuous creation, which theory was developed especially in the Meditations and in the Principles, we would assure that 'I am thinking, therefore I am/exist' is the most appropriate English translation of 'ego cogito, ergo sum'.\"",
"title": "Translation"
},
{
"paragraph_id": 16,
"text": "Alexis Deodato S. Itao notes that cogito, ergo sum is \"literally 'I think, therefore I am'.\" Others differ: 1) \"[A] precise English translation will read as 'I am thinking, therefore I exist'.; and 2) \"[S]ince Descartes ... emphasized that existence is such an important 'notion,' a better translation is 'I am thinking, therefore I exist.'\"",
"title": "Translation"
},
{
"paragraph_id": 17,
"text": "Descartes wrote this phrase as such only once, in the posthumously published lesser-known work noted above, The Search for Truth by Natural Light. It appeared there mid-sentence, uncapitalized, and with a comma. (Commas were not used in Classical Latin but were a regular feature of scholastic Latin, the Latin Descartes \"had learned in a Jesuit college at La Flèche.\") Most modern reference works show it with a comma, but it is often presented without a comma in academic work and in popular usage. In Descartes's Principia Philosophiae, the proposition appears as ego cogito, ergo sum.",
"title": "Translation"
},
{
"paragraph_id": 18,
"text": "As put succinctly by Krauth (1872), \"That cannot doubt which does not think, and that cannot think which does not exist. I doubt, I think, I exist.\"",
"title": "Interpretation"
},
{
"paragraph_id": 19,
"text": "The phrase cogito, ergo sum is not used in Descartes's Meditations on First Philosophy but the term \"the cogito\" is used to refer to an argument from it. In the Meditations, Descartes phrases the conclusion of the argument as \"that the proposition, I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind\" (Meditation II). George Henry Lewes says Descartes \"has told us that [his objective] was to find a starting point from which to reason—to find an irreversible certainty. And where did he find this? In his own consciousness. Doubt as I may, I cannot doubt of my own existence, because my very doubts reveal to me a something which doubts. You may call this an assumption, if you will; I point out the fact as one above and beyond all logic; which logic can neither prove nor disprove; but which must always remain an irreversible certainty, and as such a fitting basis of philosophy.\"",
"title": "Interpretation"
},
{
"paragraph_id": 20,
"text": "At the beginning of the second meditation, having reached what he considers to be the ultimate level of doubt—his argument from the existence of a deceiving god—Descartes examines his beliefs to see if any have survived the doubt. In his belief in his own existence, he finds that it is impossible to doubt that he exists. Even if there were a deceiving god (or an evil demon), one's belief in their own existence would be secure, for there is no way one could be deceived unless one existed in order to be deceived.",
"title": "Interpretation"
},
{
"paragraph_id": 21,
"text": "But I have convinced myself that there is absolutely nothing in the world, no sky, no earth, no minds, no bodies. Does it now follow that I, too, do not exist? No. If I convinced myself of something [or thought anything at all], then I certainly existed. But there is a deceiver of supreme power and cunning who deliberately and constantly deceives me. In that case, I, too, undoubtedly exist, if he deceives me; and let him deceive me as much as he can, he will never bring it about that I am nothing, so long as I think that I am something. So, after considering everything very thoroughly, I must finally conclude that the proposition, I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind. (AT VII 25; CSM II 16–17)",
"title": "Interpretation"
},
{
"paragraph_id": 22,
"text": "There are three important notes to keep in mind here. First, he claims only the certainty of his own existence from the first-person point of view — he has not proved the existence of other minds at this point. This is something that has to be thought through by each of us for ourselves, as we follow the course of the meditations. Second, he does not say that his existence is necessary; he says that if he thinks, then necessarily he exists (see the instantiation principle). Third, this proposition \"I am, I exist\" is held true not based on a deduction (as mentioned above) or on empirical induction but on the clarity and self-evidence of the proposition. Descartes does not use this first certainty, the cogito, as a foundation upon which to build further knowledge; rather, it is the firm ground upon which he can stand as he works to discover further truths. As he puts it:",
"title": "Interpretation"
},
{
"paragraph_id": 23,
"text": "Archimedes used to demand just one firm and immovable point in order to shift the entire earth; so I too can hope for great things if I manage to find just one thing, however slight, that is certain and unshakable. (AT VII 24; CSM II 16)",
"title": "Interpretation"
},
{
"paragraph_id": 24,
"text": "According to many Descartes specialists, including Étienne Gilson, the goal of Descartes in establishing this first truth is to demonstrate the capacity of his criterion — the immediate clarity and distinctiveness of self-evident propositions — to establish true and justified propositions despite having adopted a method of generalized doubt. As a consequence of this demonstration, Descartes considers science and mathematics to be justified to the extent that their proposals are established on a similarly immediate clarity, distinctiveness, and self-evidence that presents itself to the mind. The originality of Descartes's thinking, therefore, is not so much in expressing the cogito—a feat accomplished by other predecessors, as we shall see—but on using the cogito as demonstrating the most fundamental epistemological principle, that science and mathematics are justified by relying on clarity, distinctiveness, and self-evidence. Baruch Spinoza in \"Principia philosophiae cartesianae\" at its Prolegomenon identified \"cogito ergo sum\" the \"ego sum cogitans\" (I am a thinking being) as the thinking substance with his ontological interpretation.",
"title": "Interpretation"
},
{
"paragraph_id": 25,
"text": "Although the idea expressed in cogito, ergo sum is widely attributed to Descartes, he was not the first to mention it. Plato spoke about the \"knowledge of knowledge\" (Greek: νόησις νοήσεως, nóesis noéseos) and Aristotle explains the idea in full length:",
"title": "Predecessors"
},
{
"paragraph_id": 26,
"text": "But if life itself is good and pleasant…and if one who sees is conscious that he sees, one who hears that he hears, one who walks that he walks and similarly for all the other human activities there is a faculty that is conscious of their exercise, so that whenever we perceive, we are conscious that we perceive, and whenever we think, we are conscious that we think, and to be conscious that we are perceiving or thinking is to be conscious that we exist... (Nicomachean Ethics, 1170a 25 ff.)",
"title": "Predecessors"
},
{
"paragraph_id": 27,
"text": "The Cartesian statement was interpreted to be an Aristotelian syllogism where the premise that all thinkers are also beings is not made explicit.",
"title": "Predecessors"
},
{
"paragraph_id": 28,
"text": "In the late sixth or early fifth century BC, Parmenides is quoted as saying \"For to be aware and to be are the same\". (Fragment B3)",
"title": "Predecessors"
},
{
"paragraph_id": 29,
"text": "In the early fifth century AD, Augustine of Hippo in De Civitate Dei (book XI, 26) affirmed his certain knowledge of his own existence, and added: \"So far as these truths are concerned, I do not at all fear the arguments of the Academics when they say, What if you are mistaken? For if I am mistaken, I exist.\" This formulation (si fallor, sum) is sometimes called the Augustinian cogito. In 1640, Descartes wrote to thank Andreas Colvius (a friend of Descartes's mentor, Isaac Beeckman) for drawing his attention to Augustine:",
"title": "Predecessors"
},
{
"paragraph_id": 30,
"text": "I am obliged to you for drawing my attention to the passage of St Augustine relevant to my I am thinking, therefore I exist. I went today to the library of this town to read it, and I do indeed find that he does use it to prove the certainty of our existence. He goes on to show that there is a certain likeness of the Trinity in us, in that we exist, we know that we exist, and we love the existence and the knowledge we have. I, on the other hand, use the argument to show that this I which is thinking is an immaterial substance with no bodily element. These are two very different things. In itself it is such a simple and natural thing to infer that one exists from the fact that one is doubting that it could have occurred to any writer. But I am very glad to find myself in agreement with St Augustine, if only to hush the little minds who have tried to find fault with the principle.",
"title": "Predecessors"
},
{
"paragraph_id": 31,
"text": "Another predecessor was Avicenna's \"Floating Man\" thought experiment on human self-awareness and self-consciousness.",
"title": "Predecessors"
},
{
"paragraph_id": 32,
"text": "The 8th century Hindu philosopher Adi Shankara wrote, in a similar fashion, that no one thinks 'I am not', arguing that one's existence cannot be doubted, as there must be someone there to doubt.",
"title": "Predecessors"
},
{
"paragraph_id": 33,
"text": "Spanish philosopher Gómez Pereira in his 1554 work De Inmortalitate Animae, wrote \"nosco me aliquid noscere, & quidquid noscit, est, ergo ego sum\" ('I know that I know something, anyone who knows is, therefore I am').",
"title": "Predecessors"
},
{
"paragraph_id": 34,
"text": "In Descartes, The Project of Pure Enquiry, Bernard Williams provides a history and full evaluation of this issue. The first to raise the \"I\" problem was Pierre Gassendi, who in his Disquisitio Metaphysica, as noted by Saul Fisher \"points out that recognition that one has a set of thoughts does not imply that one is a particular thinker or another. …[T]he only claim that is indubitable here is the agent-independent claim that there is cognitive activity present.\"",
"title": "Critique"
},
{
"paragraph_id": 35,
"text": "The objection, as presented by Georg Lichtenberg, is that rather than supposing an entity that is thinking, Descartes should have said: \"thinking is occurring.\" That is, whatever the force of the cogito, Descartes draws too much from it; the existence of a thinking thing, the reference of the \"I,\" is more than the cogito can justify. Friedrich Nietzsche criticized the phrase in that it presupposes that there is an \"I\", that there is such an activity as \"thinking\", and that \"I\" know what \"thinking\" is. He suggested a more appropriate phrase would be \"it thinks\" wherein the \"it\" could be an impersonal subject as in the sentence \"It is raining.\"",
"title": "Critique"
},
{
"paragraph_id": 36,
"text": "The Danish philosopher Søren Kierkegaard calls the phrase a tautology in his Concluding Unscientific Postscript. He argues that the cogito already presupposes the existence of \"I\", and therefore concluding with existence is logically trivial. Kierkegaard's argument can be made clearer if one extracts the premise \"I think\" into the premises \"'x' thinks\" and \"I am that 'x'\", where \"x\" is used as a placeholder in order to disambiguate the \"I\" from the thinking thing.",
"title": "Critique"
},
{
"paragraph_id": 37,
"text": "Here, the cogito has already assumed the \"I\"'s existence as that which thinks. For Kierkegaard, Descartes is merely \"developing the content of a concept\", namely that the \"I\", which already exists, thinks. As Kierkegaard argues, the proper logical flow of argument is that existence is already assumed or presupposed in order for thinking to occur, not that existence is concluded from that thinking.",
"title": "Critique"
},
{
"paragraph_id": 38,
"text": "Bernard Williams claims that what we are dealing with when we talk of thought, or when we say \"I am thinking,\" is something conceivable from a third-person perspective—namely objective \"thought-events\" in the former case, and an objective thinker in the latter. He argues, first, that it is impossible to make sense of \"there is thinking\" without relativizing it to something. However, this something cannot be Cartesian egos, because it is impossible to differentiate objectively between things just on the basis of the pure content of consciousness. The obvious problem is that, through introspection, or our experience of consciousness, we have no way of moving to conclude the existence of any third-personal fact, to conceive of which would require something above and beyond just the purely subjective contents of the mind.",
"title": "Critique"
},
{
"paragraph_id": 39,
"text": "The American writer, professor, philosopher, intersectional feminist and civil rights activist Audre Lorde responded that while 'The white fathers told us: I think, therefore I am. The black mother within each of us—the poet—whispers in our dreams: I feel, therefore I can be free', thus emphasising emotion and feeling as another important determiner of truth and our shared humanity.",
"title": "Critique"
},
{
"paragraph_id": 40,
"text": "As a critic of Cartesian subjectivity, Heidegger sought to ground human subjectivity in death as that certainty which individualizes and authenticates our being. As he wrote in 1925 in History of the Concept of Time:",
"title": "Critique"
},
{
"paragraph_id": 41,
"text": "This certainty, that \"I myself am in that I will die,\" is the basic certainty of Dasein itself. It is a genuine statement of Dasein, while cogito sum is only the semblance of such a statement. If such pointed formulations mean anything at all, then the appropriate statement pertaining to Dasein in its being would have to be sum moribundus [I am in dying], moribundus not as someone gravely ill or wounded, but insofar as I am, I am moribundus. The MORIBUNDUS first gives the SUM its sense.",
"title": "Critique"
},
{
"paragraph_id": 42,
"text": "The Scottish philosopher John Macmurray rejects the cogito outright in order to place action at the center of a philosophical system he entitles the Form of the Personal. \"We must reject this, both as standpoint and as method. If this be philosophy, then philosophy is a bubble floating in an atmosphere of unreality.\" The reliance on thought creates an irreconcilable dualism between thought and action in which the unity of experience is lost, thus dissolving the integrity of our selves, and destroying any connection with reality. In order to formulate a more adequate cogito, Macmurray proposes the substitution of \"I do\" for \"I think,\" ultimately leading to a belief in God as an agent to whom all persons stand in relation.",
"title": "Critique"
}
] | The Latin cogito, ergo sum, usually translated into English as "I think, therefore I am", is the "first principle" of René Descartes's philosophy. He originally published it in French as je pense, donc je suis in his 1637 Discourse on the Method, so as to reach a wider audience than Latin would have allowed. It later appeared in Latin in his Principles of Philosophy, and a similar phrase also featured prominently in his Meditations on First Philosophy. The dictum is also sometimes referred to as the cogito. As Descartes explained in a margin note, "we cannot doubt of our existence while we doubt." In the posthumously published The Search for Truth by Natural Light, he expressed this insight as dubito, ergo sum, vel, quod idem est, cogito, ergo sum. Antoine Léonard Thomas, in a 1765 essay in honor of Descartes presented it as dubito, ergo cogito, ergo sum. Descartes's statement became a fundamental element of Western philosophy, as it purported to provide a certain foundation for knowledge in the face of radical doubt. While other knowledge could be a figment of imagination, deception, or mistake, Descartes asserted that the very act of doubting one's own existence served—at minimum—as proof of the reality of one's own mind; there must be a thinking entity—in this case the self—for there to be a thought. One critique of the dictum, first suggested by Pierre Gassendi, is that it presupposes that there is an "I" which must be doing the thinking. According to this line of criticism, the most that Descartes was entitled to say was that "thinking is occurring", not that "I am thinking". | 2001-12-05T14:56:54Z | 2023-11-28T07:08:14Z | [
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] | https://en.wikipedia.org/wiki/Cogito,_ergo_sum |
7,345 | Carl Barks | Carl Barks (March 27, 1901 – August 25, 2000) was an American cartoonist, author, and painter. He is best known for his work in Disney comic books, as the writer and artist of the first Donald Duck stories and as the creator of Scrooge McDuck. He worked anonymously until late in his career; fans dubbed him The Duck Man and The Good Duck Artist. In 1987, Barks was one of the three inaugural inductees of the Will Eisner Comic Book Hall of Fame.
Barks worked for the Disney Studio and Western Publishing where he created Duckburg and many of its inhabitants, such as Scrooge McDuck (1947), Gladstone Gander (1948), the Beagle Boys (1951), The Junior Woodchucks (1951), Gyro Gearloose (1952), Cornelius Coot (1952), Flintheart Glomgold (1956), John D. Rockerduck (1961) and Magica De Spell (1961).
He has been named by animation historian Leonard Maltin as "the most popular and widely read artist-writer in the world". Will Eisner called him "the Hans Christian Andersen of comic books." Beginning especially in the 1980s, Barks' artistic contributions would be a primary source for animated adaptations such as DuckTales and its 2017 remake.
Barks was born in Merrill, Oregon, to William Barks and his wife, Arminta Johnson. He had an older brother named Clyde. His paternal grandparents were David Barks and his wife Ruth Shrum. Barks' maternal grandparents were Carl Johnson and his wife, Suzanna Massey, but little else is known about his ancestors. Barks was the descendant of Jacob Barks, who came to Missouri from North Carolina c. 1800. They lived in Marble Hill in Bollinger County. Jacob Barks' son Isaac was the father of the David Barks noted above.
According to Barks's description of his childhood, he was a rather lonely child. His parents owned one square mile (2.6 km) of land that served as their farm. The nearest neighbor lived one-half mile (800 m) away, but he was more an acquaintance to Barks's parents than a friend. The closest school was about two miles (3.2 km) away and Barks had to walk that distance every day. The rural area had few children, though, and Barks later remembered that his school had only about eight or ten students including him. He had high praise for the quality of the education he received in that small school. "Schools were good in those days", he used to say. The lessons lasted from nine o'clock in the morning to four o'clock in the afternoon and then he had to return to the farm. There he remembered not having anybody to talk to, as his parents were busy and he had little in common with his brother.
In 1908, William Barks (in an attempt to increase the family income) moved with his family to Midland, Oregon, some miles north of Merrill, to be closer to the new railway lines. He established a new stock-breeding farm and sold his produce to the local slaughterhouses.
Nine-year-old Clyde and seven-year-old Carl worked long hours there. But Carl later remembered that the crowd which gathered at Midland's market place made a strong impression on him. This was expected, as he was not used to crowds up until then. According to Barks, his attention was mostly drawn to the cowboys that frequented the market with their revolvers, strange nicknames for each other and sense of humor.
By 1911, they had been successful enough to move to Santa Rosa, California. There they started cultivating vegetables and set up some orchards. Unfortunately, the profits were not as high as William expected and they started having financial difficulties. William's anxiety over them was probably what caused his first nervous breakdown.
As soon as William recovered, he made the decision to move back to Merrill. The year was 1913, and Barks was already 12 years old; but, due to the constant moving, he had not yet managed to complete grade school. He resumed his education at this point and finally managed to graduate in 1916.
1916 served as a turning point in Barks's life for various reasons. First, Arminta, his mother, died in this year. Second, his hearing problems, which had already appeared earlier, had at the time become severe enough for him to have difficulties listening to his teachers talking. His hearing would continue to get worse later, but at that point he had not yet acquired a hearing aid. Later in life, he couldn't do without one. Third, the closest high school to their farm was five miles (8.0 km) away and even if he did enroll in it, his bad hearing was likely to contribute to his learning problems. He had to decide to stop his school education, much to his disappointment.
Barks started taking various jobs but had little success in such occupations as a farmer, woodcutter, turner, mule driver, cowboy and printer. From his jobs he learned, he later averred, how eccentric, stubborn and unpredictable men, animals and machines can be. At the same time he interacted with colleagues, fellow breadwinners who had satirical disposition towards even their worst troubles. Barks later declared that he was sure that if not for a little humor in their troubled lives, they would certainly go insane. It was an attitude towards life that Barks would adopt. Later he would say it was natural for him to satirize the secret yearnings and desires, the pompous style and the disappointments of his characters. According to Barks, this period of his life would later influence his best known fictional characters: Walt Disney's Donald Duck and his own Scrooge McDuck.
Donald's drifting from job to job was reportedly inspired by Barks's own experiences. So was his usual lack of success. And even in those that he was successful this would be temporary, just until a mistake or chance event caused another failure, another disappointment for the frustrated duck. Barks also reported that this was another thing he was familiar with.
Scrooge's main difference to Donald, according to Barks, was that he too had faced the same difficulties in his past but through intelligence, determination and hard work, he was able to overcome them. Or, as Scrooge himself would say to Huey, Dewey, and Louie: by being "tougher than the toughies and smarter than the smarties." In Barks's stories Scrooge would work to solve his many problems, even though the stories would often point out that his constant efforts seemed futile at the end.
Through both characters Barks would often exhibit his rather sarcastic sense of humor. It seems that this difficult period for the artist helped shape many of his later views in life that were expressed through his characters.
At the same time Barks had started thinking about turning a hobby that he always enjoyed into a profession: that of drawing. Since his early childhood he spent his free time by drawing on any material he could find. He had attempted to improve his style by copying the drawings of his favorite comic strip artists from the newspapers where he could find them. As he later said, he wanted to create his own facial expressions, figures and comical situations in his drawings but wanted to study the master comic artists' use of the pen and their use of color and shading.
Among his early favorites were Winsor McCay (mostly known for Little Nemo) and Frederick Burr Opper (mostly known for Happy Hooligan) but he would later study any style that managed to draw his attention.
At age 16, he was mostly self-taught but at this point he decided to take some lessons through correspondence. He only followed the first four lessons and then had to stop because his working left him with little free time. But as he later said, the lessons proved very useful in improving his style.
By December 1918, he left his father's home to attempt to find a job in San Francisco, California. He worked for a while in a small publishing house while attempting to sell his drawings to newspapers and other printed material with little success.
While he continued drifting through various jobs, he met Pearl Turner (1904–1987). In 1921 they married and had two daughters:
In 1923 he returned to his paternal farm in Merrill in an attempt to return to the life of a farmer, but that ended soon. He continued searching for a job while attempting to sell his drawings. He soon managed to sell some of them to Judge magazine and then started having success submitting to the Minneapolis-based Calgary Eye-Opener, a racy men's cartoon magazine of the era. He was eventually hired as editor and scripted and drew most of the contents while continuing to sell occasional work to other magazines. His salary of $90 per month was considered respectable enough for the time. A facsimile of one of the racy magazines he did cartoons for in this period, Coo Coo #1, was published by Hamilton Comics in 1997.
Meanwhile, he had his first divorce. He and Pearl were separated in 1929 and divorced in 1930. After he moved to Minneapolis, Minnesota, where Calgary-Eye-Opener had its offices he met Clara Balken, who in 1938 became his second wife.
In November 1935, when he learned that Walt Disney was seeking more artists for his studio, Barks decided to apply. He was approved for a try-out which entailed a move to Los Angeles, California. He was one of two in his class of trainees who was hired. His starting salary was 20 dollars a week. He started at Disney Studios in 1935, more than a year after the debut of Donald Duck on June 9, 1934, in the short animated film The Wise Little Hen.
Barks initially worked as an inbetweener. This involved being teamed and supervised by one of the head animators who did the key poses of character action (often known as extremes) for which the inbetweeners did the drawings between the extremes to create the illusion of movement. While an inbetweener, Barks submitted gag ideas for cartoon story lines being developed and showed such a knack for creating comical situations that by 1937 he was transferred to the story department. His first story sale was the climax of Modern Inventions, for a sequence where a robot barber chair gives Donald Duck a haircut on his bottom.
In 1937, when Donald Duck became the star of his own series of cartoons instead of co-starring with Mickey Mouse and Goofy as previously, a new unit of storymen and animators was created devoted solely to this series. Though he originally just contributed gag ideas to some duck cartoons by 1937 Barks was (principally with partner Jack Hannah) originating story ideas that were storyboarded and (if approved by Walt) put into production. He collaborated on such cartoons as Donald's Nephews (1938), Donald's Cousin Gus (1939), Mr. Duck Steps Out (1940), Timber (1941), The Vanishing Private (1942) and The Plastics Inventor (1944).
Unhappy at the emerging wartime working conditions at Disney, and bothered by ongoing sinus problems caused by the studio's air conditioning, Barks quit in 1942. Shortly before quitting, he moonlighted as a comic book artist, contributing half the artwork for a one-shot comic book (the other half of the art being done by story partner Jack Hannah) titled Donald Duck Finds Pirate Gold. This 64-page story was adapted by Donald Duck comic strip writer Bob Karp from an unproduced feature, and published in October 1942 in Dell Comics Four Color Comics #9. It was the first Donald Duck story originally produced for an American comic book and also the first involving Donald and his nephews in a treasure hunting expedition, in this case for the treasure of Henry Morgan. Barks would later use the treasure hunting theme in many of his stories. This actually was not his first work in comics, as earlier the same year Barks along with Hannah and fellow storyman Nick George scripted Pluto Saves the Ship, which was among the first original Disney comic book stories published in the United States.
After quitting the Disney Studio, Barks relocated to the Hemet/San Jacinto area in the semi-desert Inland Empire region east of Los Angeles where he hoped to start a chicken farm.
When asked which of his stories was a favorite in several interviews Barks cited the ten-pager in Walt Disney's Comics and Stories #146 (Nov. 1952) in which Donald tells the story of the chain of unfortunate events that took place when he owned a chicken farm in a town which subsequently was renamed Omelet. Likely one reason it was a favorite is that it was inspired by Barks' own experiences in the poultry business.
But to earn a living in the meantime he inquired whether Western Publishing, which had published Pirate Gold, had any need for artists for Donald Duck comic book stories. He was immediately assigned to illustrate the script for a ten-page Donald Duck story for the monthly Walt Disney's Comics and Stories. At the publisher's invitation he revised the storyline and the improvements impressed the editor sufficiently to invite Barks to try his hand at contributing both the script and the artwork of his follow-up story. This set the pattern for Barks' career in that (with rare exceptions) he provided art (pencil, inking, solid blacks and lettering) and scripting for his stories.
The Victory Garden, that initial ten-page story published in April, 1943 was the first of about 500 stories featuring the Disney ducks Barks would produce for Western Publishing over the next three decades, well into his purported retirement. These can be mostly divided into three categories:
Barks' artistic growth during his first decade in comics saw a transformation from rather rudimentary storytelling derived from his years as an animation artist and storyman into a virtuoso creator of complex narratives, notably in his longer adventure tales. According to critic Geoffrey Blum, the process that saw its beginnings in 1942's Pirate Gold first bore its full fruit in 1950's "Vacation Time", which he describes as "a visual primer for reading comics and understanding ... the form".
He surrounded Donald Duck and nephews Huey, Dewey, and Louie with a cast of eccentric and colorful characters, such as the aforementioned Scrooge McDuck, the wealthiest duck in the world; Gladstone Gander, Donald's obscenely lucky cousin; inventor Gyro Gearloose; the persistent Beagle Boys; the sorceress Magica De Spell; Scrooge's rivals Flintheart Glomgold and John D. Rockerduck; Daisy's nieces April, May and June; Donald's neighbor Jones, and The Junior Woodchucks organization.
Barks's stories (whether humorous adventures or domestic comedies) often exhibited a wry, dark irony born of hard experience. The ten-pagers showcased Donald as everyman, struggling against the cruel bumps and bruises of everyday life with the nephews often acting as a Greek chorus commenting on the unfolding disasters Donald wrought upon himself. Yet while seemingly defeatist in tone, the humanity of the characters shines through in their persistence despite the obstacles. These stories found popularity not only among young children but adults as well. Despite the fact that Barks had done little traveling his adventure stories often had the duck clan globe-trotting to the most remote or spectacular of places. This allowed Barks to indulge his penchant for elaborate backgrounds that hinted at his thwarted ambitions of doing realistic stories in the vein of Hal Foster's Prince Valiant.
As Barks blossomed creatively, his marriage to Clara deteriorated. This is the period referred to in Barks' famed quip that he could feel his creative juices flowing while the whiskey bottles hurled at him by a tipsy Clara flew by his head. They were divorced in 1951, his second and last divorce. In this period Barks dabbled in fine art, exhibiting paintings at local art shows. It was at one of these in 1952 he became acquainted with fellow exhibitor Margaret Wynnfred Williams (1917 – March 10, 1993), nicknamed Garé. She was an accomplished landscape artist, some of whose paintings are in the collection of the Leanin' Tree Museum of Western Art. During her lifetime, and to this day, note cards of her paintings are available from Leanin' Tree. Her nickname appears as a store name in the story "Christmas in Duckburg", featured on page 1 of Walt Disney's Christmas Parade #9, published in 1958. Soon after they met, she started assisting Barks, handling the solid blacks and lettering, both of which he had found onerous. They married in 1954 and the union lasted until her death.
People who worked for Disney (and its comic book licensees) generally did so in relative anonymity; stories would only carry Walt Disney's name and (sometimes) a short identification number. Prior to 1960 Barks' identity remained a mystery to his readers. However, many readers recognized Barks' work and drawing style and began to call him the Good Duck Artist, a label that stuck even after his true identity was discovered by fans in the late 1950s. Malcolm Willits was the first person to learn Barks's name and address, but two brothers named John and Bill Spicer became the first fans to contact Barks after independently discovering the same information. After Barks received a 1960 visit from the Spicer brothers and Ron Leonard, he was no longer anonymous, as word of his identity spread through the emerging network of comic book fandom fanzines and conventions.
Carl Barks retired in 1966, but was persuaded by editor Chase Craig to continue to script stories for Western. The last new comic book story drawn by Carl Barks was a Daisy Duck tale ("The Dainty Daredevil") published in Walt Disney Comics Digest issue 5 (Nov. 1968). When bibliographer Michael Barrier asked Barks why he drew it, Barks' vague recollection was no one was available and he was asked to do it as a favor by Craig.
He wrote one Uncle Scrooge story, and three Donald Duck stories. From 1970 to 1974, Barks was the main writer for the Junior Woodchucks comic book (issues 6 through 25). The latter included environmental themes that Barks first explored in 1957 ["Land of the Pygmy Indians", Uncle Scrooge #18]. Barks also sold a few sketches to Western that were redrawn as covers. For a time the Barkses lived in Goleta, California, before returning to the Inland Empire by moving to Temecula.
To make a little extra money beyond what his pension and scripting earnings brought in, Barks started doing oil paintings to sell at the local art shows where he and Garé exhibited. Subjects included humorous depictions of life on the farm and portraits of Native American princesses. These skillfully rendered paintings encouraged fan Glenn Bray to ask Barks if he could commission a painting of the ducks ("A Tall Ship and a Star to Steer Her By", taken from the cover of Walt Disney's Comics and Stories #108 by Barks). This prompted Barks to contact George Sherman at Disney's Publications Department to request permission to produce and sell oil paintings of scenes from his stories. In July 1971 Barks was granted a royalty-free license by Disney. When word spread that Barks was taking commissions from those interested in purchasing an oil of the ducks, much to his astonishment the response quickly outstripped what he reasonably could produce in the next few years.
They ride tall ships to the far away, and see the long ago. They walk where fabled people trod, and Yetis trod the snow. They meet the folks who live on stars, and find them much like us, With food and love and happiness the things they most discuss. The world is full of clans and cults abuzz as angry bees, And Junior Woodchucks snapping jeers at Littlest Chickadees. The ducks show us that part of life is to forgive a slight. That black eyes given in revenge keep hatred burning bright. So when our walks in sun or shade pass graveyards filled by wars, It's nice to stop and read of ducks whose battles leave no scars. To read of ducks who parody our vain attempts at glory, They don't exist, but somehow leave us glad we bought their story.
—Carl Barks, 1999
When Barks expressed dismay at coping with the backlog of orders he faced, fan/dealers Bruce Hamilton and Russ Cochran suggested Barks instead auction his paintings at conventions and via Cochran's catalog Graphic Gallery. By September 1974 Barks had discontinued taking commissions.
At Boston's NewCon convention, in October 1975, the first Carl Barks oil painting auctioned at a comic book convention ("She Was Spangled and Flashy") sold for $2,500. Subsequent offerings saw an escalation in the prices realized.
In 1976, Barks and Garé went to Boston for the NewCon show, their first comic convention appearance. Among the other attendees was famed Little Lulu comic book scripter John Stanley; despite both having worked for Western Publishing this was the first time they met. The highlight of the convention was the auctioning of what was to that time the largest duck oil painting Barks had done, "July Fourth in Duckburg", which included depictions of several prominent Barks fans and collectors. It sold for a then record high amount: $6,400.
Soon thereafter a fan sold unauthorized prints of some of the Scrooge McDuck paintings, leading Disney to withdraw permission for further paintings. To meet demand for new work Barks embarked on a series of paintings of non-Disney ducks and fantasy subjects such as Beowulf and Xerxes. These were eventually collected in the limited-edition book Animal Quackers.
As the result of heroic efforts by Star Wars producer Gary Kurtz and screenwriter Edward Summer, Disney relented and, in 1981, allowed Barks to do a now seminal oil painting called Wanderers of Wonderlands for a breakthrough limited edition book entitled Uncle Scrooge McDuck: His Life and Times. The book collected 11 classic Barks stories of Uncle Scrooge colored by artist Peter Ledger along with a new Scrooge story by Barks done storybook style with watercolor illustrations, "Go Slowly, Sands of Time". After being turned down by every major publisher in New York City, Kurtz and Summer published the book through Celestial Arts, which Kurtz acquired partly for this purpose. The book went on to become the model for virtually every important collection of comic book stories. It was the first book of its kind ever reviewed in Time magazine and subsequently in Newsweek, and the first book review in Time with large color illustrations.
In 1977 and 1982, Barks attended the San Diego Comic-Con. As with his appearance in Boston, the response to his presence was overwhelming, with long lines of fans waiting to meet Barks and get his autograph.
In 1981, Bruce Hamilton and Russ Cochran, two long-time Disney comics fans, decided to combine forces to bring greater recognition to the works of Carl Barks. Their first efforts went into establishing Another Rainbow Publishing, the banner under which they produced and issued the award-winning book The Fine Art of Walt Disney's Donald Duck by Carl Barks, a comprehensive collection of the Disney duck paintings of this artist and storyteller. Not long after, the company began producing fine art lithographs of many of these paintings, in strictly limited editions, all signed by Barks, who eventually produced many original works for the series.
In 1983, Barks relocated one last time to Grants Pass, Oregon, near where he grew up, partly at the urging of friend and Broom Hilda artist Russell Myers, who lived in the area. The move also was motivated, Barks stated in another famous quip, by Temecula being too close to Disneyland and thus facilitating a growing torrent of drop-in visits by vacationing fans. In this period Barks made only one public appearance, at a comic book shop near Grants Pass.
In 1983, Another Rainbow took up the daunting task of collecting the entire Disney comic book oeuvre of Barks—over 500 stories in all—in the ten-set, thirty-volume Carl Barks Library. These oversized hardbound volumes reproduced Barks' pages in pristine black and white line art, as close as possible to the way he would originally draw them, and included mountains of special features, articles, reminiscences, interviews, storyboards, critiques, and more than a few surprises. This monumental project was finally completed in mid-1990.
In 1985, a new division was founded, Gladstone Publishing, which took up the then-dormant Disney comic book license. Gladstone introduced a new generation of Disney comic book readers to the storytelling of Barks, Paul Murry, and Floyd Gottfredson, as well as presenting the first works of modern Disney comics artists Don Rosa and William Van Horn. Seven years after Gladstone's founding, the Carl Barks Library was revived as the Carl Barks Library in Color, as full-color, high-quality squarebound comic albums (including the first-ever Carl Barks trading cards).
From 1993 to 1998, Barks' career was managed by the "Carl Barks Studio" (Bill Grandey and Kathy Morby—they had sold Barks original art since 1979). This involved numerous art projects and activities, including a tour of 11 European countries in 1994, Iceland being the first foreign country he ever visited. Barks appeared at the first of many Disneyana conventions in 1993. Silk screen prints of paintings along with high-end art objects (such as original water colors, bronze figurines and ceramic tiles) were produced based on designs by Barks.
During the summer of 1994 and until his death, Barks and his studio personally assigned Peter Reichelt, a museum exhibition producer from Mannheim, Germany, as his agent for Europe. Publisher "Edition 313" put out numerous lithographs. In 1997, tensions between Barks and the Studio eventually resulted in a lawsuit that was settled with an agreement that included the disbanding of the Studio. Barks never traveled to make another Disney appearance. He was represented by Ed Bergen, as he completed a final project. Gerry Tank and Jim Mitchell were to assist Barks in his final years.
During his Carl Barks Studio years, Barks created two more stories: the script for the final Uncle Scrooge story "Horsing Around with History", which was first published in Denmark in 1994 with Bill Van Horn art. The outlines for Barks' final Donald Duck story "Somewhere in Nowhere", were first published in 1997, in Italy, with art by Pat Block.
Austrian artist Gottfried Helnwein curated and organized the first solo museum-exhibition of Barks. Between 1994 and 1998 the retrospective was shown in ten European museums and seen by more than 400,000 visitors.
At the same time in spring 1994, Reichelt and Ina Brockmann designed a special museum exhibition tour about Barks' life and work. Also represented for the first time at this exhibition were Disney artists Al Taliaferro and Floyd Gottfredson. Since 1995, more than 500,000 visitors have attended the shows in Europe.
Reichelt also translated Michael Barrier's biography of Barks into German and published it in 1994.
Barks spent his final years in a new home in Grants Pass, Oregon, which he and Garé, who died in 1993, had built next door to their original home. In July 1999, he was diagnosed with chronic lymphocytic leukemia, a form of cancer arising from the white blood cells in the bone marrow, for which he received oral chemotherapy. However, as the disease progressed, causing him great discomfort, the ailing Barks decided to stop receiving treatment in June 2000. In spite of his terminal condition, Barks remained, according to caregiver Serene Hunicke, "funny up to the end".
The year before, Barks had told the university professor Donald Ault:
I have no apprehension, no fear of death. I do not believe in an afterlife. ... I think of death as total peace. You're beyond the clutches of all those who would crush you.
On August 25, 2000, shortly after midnight, Carl Barks died quietly in his sleep at the age of 99. He was interred in Hillcrest Memorial Cemetery in Grants Pass, beside Garé's grave.
"(A)n asteroid was named after the Duck Man in 1983 --- 2730 Barks, a carbonaceous C-type asteroid with a diameter of between 10 and 16 kilometers, an ordital period of six years and four months, and a rotation period of just over six hours." In a 1983 interview, Barks says that "Island in the Sky," a story about the Ducks traveling to the asteroid belt to find a place Uncle Scrooge can store his money, was his favorite story.
Barks' Donald Duck stories were rated #7 on The Comics Journal list of 100 top comics; his Uncle Scrooge stories were rated #20.
Steven Spielberg and George Lucas have acknowledged that the rolling-boulder booby trap in the opening scene of Raiders of the Lost Ark was inspired by the 1954 Carl Barks Uncle Scrooge adventure "The Seven Cities of Cibola" (Uncle Scrooge #7). Lucas and Spielberg have also said that some of Barks' stories about space travel and the depiction of aliens had an influence on them. Lucas wrote the foreword to the 1982 Uncle Scrooge McDuck: His Life and Times. In it he calls Barks' stories "cinematic" and "a priceless part of our literary heritage".
The Walt Disney Treasures DVD set Chronological Donald, Volume 2 includes a salute to Barks.
Carl Barks has an asteroid named after him, 2730 Barks.
In Almere, Netherlands, a street was named after him: Carl Barksweg. The same neighborhood also includes a Donald Ducklaan and a Goofystraat.
Japanese animator and cartoonist Osamu Tezuka, who created manga such as Astro Boy and Black Jack, was a fan of Barks' work. New Treasure Island, one of Tezuka's first works, was partly influenced by "Donald Duck Finds Pirate Gold".
A 1949 Donald Duck ten-pager features Donald raising a yacht from the ocean floor by filling it with ping pong balls. In December 1965 Karl Krøyer, a Dane, lifted the sunken freight vessel Al Kuwait in the Kuwait Harbor by filling the hull with 27 million tiny inflatable balls of polystyrene. Krøyer denies having been inspired by this Barks story. Some sources claim Krøyer was denied a Dutch patent registration (application number NL 6514306) for his invention on the grounds that the Barks story was a prior publication of the invention. Krøyer later successfully raised another ship off Greenland using the same method, and several other sunken vessels worldwide have since been raised by modified versions of this concept. The television show MythBusters also tested this method and was able to raise a small boat.
Don Rosa, one of the most popular living Disney artists, and possibly the one who has been most keen on connecting the various stories into a coherent universe and chronology, considers (with few exceptions) all Barks' duck stories as canon, and all others as apocryphal. Rosa has said that a number of novelists and movie-makers cite Carl Barks as their 'major influence and inspiration'.
When the news of Barks' passing was hardly covered by the press in America, "in Europe the sad news was flashed instantly across the airwaves and every newspaper — they realized the world had lost one of the most beloved, influential and well-known creators in international culture."
In 2010 Oregon Cartoon Institute produced a video about the influence of Carl Barks and Basil Wolverton on Robert Crumb.
The video game Donald Duck: Goin' Quackers is dedicated to the memory of Carl Barks.
Carl Barks drew an early Andy Panda comic book story published in New Funnies #76, 1943. It is one of his few stories to feature humans interacting with talking animal characters (another is Dangerous Disguise, Four Color #308, 1951). See List of Fictional Pandas.
The life story of Carl Barks, largely drawing upon his relationship with Disney and the phonetic similarity of his name to Karl Marx, serves as a loose inspiration to one of the subplots in The Last Song of Manuel Sendero by Ariel Dorfman.
The first image ever to be displayed on an Apple Macintosh was a scan of Carl Barks' Scrooge McDuck.
Films where Barks served as storyman or story director include:
Barks was an enthusiastic user of Esterbrook pens, and used a Nº 356 model to ink and letter his Donald Duck comic-book pages.
I used a #356 Esterbrook art and drafting pen which could do everything from thin "fadeaways" to broad accented curve sweeps on foreground circles such as the ducks' forms. The trick of breaking in a new pen, I discovered, is to soak it for several minutes in the ink bottle. Then wipe off the ink and the pen's varnish. For some weird reason most new pens then start out flexible and free-flowing | [
{
"paragraph_id": 0,
"text": "Carl Barks (March 27, 1901 – August 25, 2000) was an American cartoonist, author, and painter. He is best known for his work in Disney comic books, as the writer and artist of the first Donald Duck stories and as the creator of Scrooge McDuck. He worked anonymously until late in his career; fans dubbed him The Duck Man and The Good Duck Artist. In 1987, Barks was one of the three inaugural inductees of the Will Eisner Comic Book Hall of Fame.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Barks worked for the Disney Studio and Western Publishing where he created Duckburg and many of its inhabitants, such as Scrooge McDuck (1947), Gladstone Gander (1948), the Beagle Boys (1951), The Junior Woodchucks (1951), Gyro Gearloose (1952), Cornelius Coot (1952), Flintheart Glomgold (1956), John D. Rockerduck (1961) and Magica De Spell (1961).",
"title": ""
},
{
"paragraph_id": 2,
"text": "He has been named by animation historian Leonard Maltin as \"the most popular and widely read artist-writer in the world\". Will Eisner called him \"the Hans Christian Andersen of comic books.\" Beginning especially in the 1980s, Barks' artistic contributions would be a primary source for animated adaptations such as DuckTales and its 2017 remake.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Barks was born in Merrill, Oregon, to William Barks and his wife, Arminta Johnson. He had an older brother named Clyde. His paternal grandparents were David Barks and his wife Ruth Shrum. Barks' maternal grandparents were Carl Johnson and his wife, Suzanna Massey, but little else is known about his ancestors. Barks was the descendant of Jacob Barks, who came to Missouri from North Carolina c. 1800. They lived in Marble Hill in Bollinger County. Jacob Barks' son Isaac was the father of the David Barks noted above.",
"title": "Biography"
},
{
"paragraph_id": 4,
"text": "According to Barks's description of his childhood, he was a rather lonely child. His parents owned one square mile (2.6 km) of land that served as their farm. The nearest neighbor lived one-half mile (800 m) away, but he was more an acquaintance to Barks's parents than a friend. The closest school was about two miles (3.2 km) away and Barks had to walk that distance every day. The rural area had few children, though, and Barks later remembered that his school had only about eight or ten students including him. He had high praise for the quality of the education he received in that small school. \"Schools were good in those days\", he used to say. The lessons lasted from nine o'clock in the morning to four o'clock in the afternoon and then he had to return to the farm. There he remembered not having anybody to talk to, as his parents were busy and he had little in common with his brother.",
"title": "Biography"
},
{
"paragraph_id": 5,
"text": "In 1908, William Barks (in an attempt to increase the family income) moved with his family to Midland, Oregon, some miles north of Merrill, to be closer to the new railway lines. He established a new stock-breeding farm and sold his produce to the local slaughterhouses.",
"title": "Biography"
},
{
"paragraph_id": 6,
"text": "Nine-year-old Clyde and seven-year-old Carl worked long hours there. But Carl later remembered that the crowd which gathered at Midland's market place made a strong impression on him. This was expected, as he was not used to crowds up until then. According to Barks, his attention was mostly drawn to the cowboys that frequented the market with their revolvers, strange nicknames for each other and sense of humor.",
"title": "Biography"
},
{
"paragraph_id": 7,
"text": "By 1911, they had been successful enough to move to Santa Rosa, California. There they started cultivating vegetables and set up some orchards. Unfortunately, the profits were not as high as William expected and they started having financial difficulties. William's anxiety over them was probably what caused his first nervous breakdown.",
"title": "Biography"
},
{
"paragraph_id": 8,
"text": "As soon as William recovered, he made the decision to move back to Merrill. The year was 1913, and Barks was already 12 years old; but, due to the constant moving, he had not yet managed to complete grade school. He resumed his education at this point and finally managed to graduate in 1916.",
"title": "Biography"
},
{
"paragraph_id": 9,
"text": "1916 served as a turning point in Barks's life for various reasons. First, Arminta, his mother, died in this year. Second, his hearing problems, which had already appeared earlier, had at the time become severe enough for him to have difficulties listening to his teachers talking. His hearing would continue to get worse later, but at that point he had not yet acquired a hearing aid. Later in life, he couldn't do without one. Third, the closest high school to their farm was five miles (8.0 km) away and even if he did enroll in it, his bad hearing was likely to contribute to his learning problems. He had to decide to stop his school education, much to his disappointment.",
"title": "Biography"
},
{
"paragraph_id": 10,
"text": "Barks started taking various jobs but had little success in such occupations as a farmer, woodcutter, turner, mule driver, cowboy and printer. From his jobs he learned, he later averred, how eccentric, stubborn and unpredictable men, animals and machines can be. At the same time he interacted with colleagues, fellow breadwinners who had satirical disposition towards even their worst troubles. Barks later declared that he was sure that if not for a little humor in their troubled lives, they would certainly go insane. It was an attitude towards life that Barks would adopt. Later he would say it was natural for him to satirize the secret yearnings and desires, the pompous style and the disappointments of his characters. According to Barks, this period of his life would later influence his best known fictional characters: Walt Disney's Donald Duck and his own Scrooge McDuck.",
"title": "Biography"
},
{
"paragraph_id": 11,
"text": "Donald's drifting from job to job was reportedly inspired by Barks's own experiences. So was his usual lack of success. And even in those that he was successful this would be temporary, just until a mistake or chance event caused another failure, another disappointment for the frustrated duck. Barks also reported that this was another thing he was familiar with.",
"title": "Biography"
},
{
"paragraph_id": 12,
"text": "Scrooge's main difference to Donald, according to Barks, was that he too had faced the same difficulties in his past but through intelligence, determination and hard work, he was able to overcome them. Or, as Scrooge himself would say to Huey, Dewey, and Louie: by being \"tougher than the toughies and smarter than the smarties.\" In Barks's stories Scrooge would work to solve his many problems, even though the stories would often point out that his constant efforts seemed futile at the end.",
"title": "Biography"
},
{
"paragraph_id": 13,
"text": "Through both characters Barks would often exhibit his rather sarcastic sense of humor. It seems that this difficult period for the artist helped shape many of his later views in life that were expressed through his characters.",
"title": "Biography"
},
{
"paragraph_id": 14,
"text": "At the same time Barks had started thinking about turning a hobby that he always enjoyed into a profession: that of drawing. Since his early childhood he spent his free time by drawing on any material he could find. He had attempted to improve his style by copying the drawings of his favorite comic strip artists from the newspapers where he could find them. As he later said, he wanted to create his own facial expressions, figures and comical situations in his drawings but wanted to study the master comic artists' use of the pen and their use of color and shading.",
"title": "Biography"
},
{
"paragraph_id": 15,
"text": "Among his early favorites were Winsor McCay (mostly known for Little Nemo) and Frederick Burr Opper (mostly known for Happy Hooligan) but he would later study any style that managed to draw his attention.",
"title": "Biography"
},
{
"paragraph_id": 16,
"text": "At age 16, he was mostly self-taught but at this point he decided to take some lessons through correspondence. He only followed the first four lessons and then had to stop because his working left him with little free time. But as he later said, the lessons proved very useful in improving his style.",
"title": "Biography"
},
{
"paragraph_id": 17,
"text": "By December 1918, he left his father's home to attempt to find a job in San Francisco, California. He worked for a while in a small publishing house while attempting to sell his drawings to newspapers and other printed material with little success.",
"title": "Biography"
},
{
"paragraph_id": 18,
"text": "While he continued drifting through various jobs, he met Pearl Turner (1904–1987). In 1921 they married and had two daughters:",
"title": "Biography"
},
{
"paragraph_id": 19,
"text": "In 1923 he returned to his paternal farm in Merrill in an attempt to return to the life of a farmer, but that ended soon. He continued searching for a job while attempting to sell his drawings. He soon managed to sell some of them to Judge magazine and then started having success submitting to the Minneapolis-based Calgary Eye-Opener, a racy men's cartoon magazine of the era. He was eventually hired as editor and scripted and drew most of the contents while continuing to sell occasional work to other magazines. His salary of $90 per month was considered respectable enough for the time. A facsimile of one of the racy magazines he did cartoons for in this period, Coo Coo #1, was published by Hamilton Comics in 1997.",
"title": "Biography"
},
{
"paragraph_id": 20,
"text": "Meanwhile, he had his first divorce. He and Pearl were separated in 1929 and divorced in 1930. After he moved to Minneapolis, Minnesota, where Calgary-Eye-Opener had its offices he met Clara Balken, who in 1938 became his second wife.",
"title": "Biography"
},
{
"paragraph_id": 21,
"text": "In November 1935, when he learned that Walt Disney was seeking more artists for his studio, Barks decided to apply. He was approved for a try-out which entailed a move to Los Angeles, California. He was one of two in his class of trainees who was hired. His starting salary was 20 dollars a week. He started at Disney Studios in 1935, more than a year after the debut of Donald Duck on June 9, 1934, in the short animated film The Wise Little Hen.",
"title": "Biography"
},
{
"paragraph_id": 22,
"text": "Barks initially worked as an inbetweener. This involved being teamed and supervised by one of the head animators who did the key poses of character action (often known as extremes) for which the inbetweeners did the drawings between the extremes to create the illusion of movement. While an inbetweener, Barks submitted gag ideas for cartoon story lines being developed and showed such a knack for creating comical situations that by 1937 he was transferred to the story department. His first story sale was the climax of Modern Inventions, for a sequence where a robot barber chair gives Donald Duck a haircut on his bottom.",
"title": "Biography"
},
{
"paragraph_id": 23,
"text": "In 1937, when Donald Duck became the star of his own series of cartoons instead of co-starring with Mickey Mouse and Goofy as previously, a new unit of storymen and animators was created devoted solely to this series. Though he originally just contributed gag ideas to some duck cartoons by 1937 Barks was (principally with partner Jack Hannah) originating story ideas that were storyboarded and (if approved by Walt) put into production. He collaborated on such cartoons as Donald's Nephews (1938), Donald's Cousin Gus (1939), Mr. Duck Steps Out (1940), Timber (1941), The Vanishing Private (1942) and The Plastics Inventor (1944).",
"title": "Biography"
},
{
"paragraph_id": 24,
"text": "Unhappy at the emerging wartime working conditions at Disney, and bothered by ongoing sinus problems caused by the studio's air conditioning, Barks quit in 1942. Shortly before quitting, he moonlighted as a comic book artist, contributing half the artwork for a one-shot comic book (the other half of the art being done by story partner Jack Hannah) titled Donald Duck Finds Pirate Gold. This 64-page story was adapted by Donald Duck comic strip writer Bob Karp from an unproduced feature, and published in October 1942 in Dell Comics Four Color Comics #9. It was the first Donald Duck story originally produced for an American comic book and also the first involving Donald and his nephews in a treasure hunting expedition, in this case for the treasure of Henry Morgan. Barks would later use the treasure hunting theme in many of his stories. This actually was not his first work in comics, as earlier the same year Barks along with Hannah and fellow storyman Nick George scripted Pluto Saves the Ship, which was among the first original Disney comic book stories published in the United States.",
"title": "Biography"
},
{
"paragraph_id": 25,
"text": "After quitting the Disney Studio, Barks relocated to the Hemet/San Jacinto area in the semi-desert Inland Empire region east of Los Angeles where he hoped to start a chicken farm.",
"title": "Biography"
},
{
"paragraph_id": 26,
"text": "When asked which of his stories was a favorite in several interviews Barks cited the ten-pager in Walt Disney's Comics and Stories #146 (Nov. 1952) in which Donald tells the story of the chain of unfortunate events that took place when he owned a chicken farm in a town which subsequently was renamed Omelet. Likely one reason it was a favorite is that it was inspired by Barks' own experiences in the poultry business.",
"title": "Biography"
},
{
"paragraph_id": 27,
"text": "But to earn a living in the meantime he inquired whether Western Publishing, which had published Pirate Gold, had any need for artists for Donald Duck comic book stories. He was immediately assigned to illustrate the script for a ten-page Donald Duck story for the monthly Walt Disney's Comics and Stories. At the publisher's invitation he revised the storyline and the improvements impressed the editor sufficiently to invite Barks to try his hand at contributing both the script and the artwork of his follow-up story. This set the pattern for Barks' career in that (with rare exceptions) he provided art (pencil, inking, solid blacks and lettering) and scripting for his stories.",
"title": "Biography"
},
{
"paragraph_id": 28,
"text": "The Victory Garden, that initial ten-page story published in April, 1943 was the first of about 500 stories featuring the Disney ducks Barks would produce for Western Publishing over the next three decades, well into his purported retirement. These can be mostly divided into three categories:",
"title": "Biography"
},
{
"paragraph_id": 29,
"text": "Barks' artistic growth during his first decade in comics saw a transformation from rather rudimentary storytelling derived from his years as an animation artist and storyman into a virtuoso creator of complex narratives, notably in his longer adventure tales. According to critic Geoffrey Blum, the process that saw its beginnings in 1942's Pirate Gold first bore its full fruit in 1950's \"Vacation Time\", which he describes as \"a visual primer for reading comics and understanding ... the form\".",
"title": "Biography"
},
{
"paragraph_id": 30,
"text": "He surrounded Donald Duck and nephews Huey, Dewey, and Louie with a cast of eccentric and colorful characters, such as the aforementioned Scrooge McDuck, the wealthiest duck in the world; Gladstone Gander, Donald's obscenely lucky cousin; inventor Gyro Gearloose; the persistent Beagle Boys; the sorceress Magica De Spell; Scrooge's rivals Flintheart Glomgold and John D. Rockerduck; Daisy's nieces April, May and June; Donald's neighbor Jones, and The Junior Woodchucks organization.",
"title": "Biography"
},
{
"paragraph_id": 31,
"text": "Barks's stories (whether humorous adventures or domestic comedies) often exhibited a wry, dark irony born of hard experience. The ten-pagers showcased Donald as everyman, struggling against the cruel bumps and bruises of everyday life with the nephews often acting as a Greek chorus commenting on the unfolding disasters Donald wrought upon himself. Yet while seemingly defeatist in tone, the humanity of the characters shines through in their persistence despite the obstacles. These stories found popularity not only among young children but adults as well. Despite the fact that Barks had done little traveling his adventure stories often had the duck clan globe-trotting to the most remote or spectacular of places. This allowed Barks to indulge his penchant for elaborate backgrounds that hinted at his thwarted ambitions of doing realistic stories in the vein of Hal Foster's Prince Valiant.",
"title": "Biography"
},
{
"paragraph_id": 32,
"text": "As Barks blossomed creatively, his marriage to Clara deteriorated. This is the period referred to in Barks' famed quip that he could feel his creative juices flowing while the whiskey bottles hurled at him by a tipsy Clara flew by his head. They were divorced in 1951, his second and last divorce. In this period Barks dabbled in fine art, exhibiting paintings at local art shows. It was at one of these in 1952 he became acquainted with fellow exhibitor Margaret Wynnfred Williams (1917 – March 10, 1993), nicknamed Garé. She was an accomplished landscape artist, some of whose paintings are in the collection of the Leanin' Tree Museum of Western Art. During her lifetime, and to this day, note cards of her paintings are available from Leanin' Tree. Her nickname appears as a store name in the story \"Christmas in Duckburg\", featured on page 1 of Walt Disney's Christmas Parade #9, published in 1958. Soon after they met, she started assisting Barks, handling the solid blacks and lettering, both of which he had found onerous. They married in 1954 and the union lasted until her death.",
"title": "Biography"
},
{
"paragraph_id": 33,
"text": "People who worked for Disney (and its comic book licensees) generally did so in relative anonymity; stories would only carry Walt Disney's name and (sometimes) a short identification number. Prior to 1960 Barks' identity remained a mystery to his readers. However, many readers recognized Barks' work and drawing style and began to call him the Good Duck Artist, a label that stuck even after his true identity was discovered by fans in the late 1950s. Malcolm Willits was the first person to learn Barks's name and address, but two brothers named John and Bill Spicer became the first fans to contact Barks after independently discovering the same information. After Barks received a 1960 visit from the Spicer brothers and Ron Leonard, he was no longer anonymous, as word of his identity spread through the emerging network of comic book fandom fanzines and conventions.",
"title": "Biography"
},
{
"paragraph_id": 34,
"text": "Carl Barks retired in 1966, but was persuaded by editor Chase Craig to continue to script stories for Western. The last new comic book story drawn by Carl Barks was a Daisy Duck tale (\"The Dainty Daredevil\") published in Walt Disney Comics Digest issue 5 (Nov. 1968). When bibliographer Michael Barrier asked Barks why he drew it, Barks' vague recollection was no one was available and he was asked to do it as a favor by Craig.",
"title": "Biography"
},
{
"paragraph_id": 35,
"text": "He wrote one Uncle Scrooge story, and three Donald Duck stories. From 1970 to 1974, Barks was the main writer for the Junior Woodchucks comic book (issues 6 through 25). The latter included environmental themes that Barks first explored in 1957 [\"Land of the Pygmy Indians\", Uncle Scrooge #18]. Barks also sold a few sketches to Western that were redrawn as covers. For a time the Barkses lived in Goleta, California, before returning to the Inland Empire by moving to Temecula.",
"title": "Biography"
},
{
"paragraph_id": 36,
"text": "To make a little extra money beyond what his pension and scripting earnings brought in, Barks started doing oil paintings to sell at the local art shows where he and Garé exhibited. Subjects included humorous depictions of life on the farm and portraits of Native American princesses. These skillfully rendered paintings encouraged fan Glenn Bray to ask Barks if he could commission a painting of the ducks (\"A Tall Ship and a Star to Steer Her By\", taken from the cover of Walt Disney's Comics and Stories #108 by Barks). This prompted Barks to contact George Sherman at Disney's Publications Department to request permission to produce and sell oil paintings of scenes from his stories. In July 1971 Barks was granted a royalty-free license by Disney. When word spread that Barks was taking commissions from those interested in purchasing an oil of the ducks, much to his astonishment the response quickly outstripped what he reasonably could produce in the next few years.",
"title": "Biography"
},
{
"paragraph_id": 37,
"text": "They ride tall ships to the far away, and see the long ago. They walk where fabled people trod, and Yetis trod the snow. They meet the folks who live on stars, and find them much like us, With food and love and happiness the things they most discuss. The world is full of clans and cults abuzz as angry bees, And Junior Woodchucks snapping jeers at Littlest Chickadees. The ducks show us that part of life is to forgive a slight. That black eyes given in revenge keep hatred burning bright. So when our walks in sun or shade pass graveyards filled by wars, It's nice to stop and read of ducks whose battles leave no scars. To read of ducks who parody our vain attempts at glory, They don't exist, but somehow leave us glad we bought their story.",
"title": "Biography"
},
{
"paragraph_id": 38,
"text": "—Carl Barks, 1999",
"title": "Biography"
},
{
"paragraph_id": 39,
"text": "When Barks expressed dismay at coping with the backlog of orders he faced, fan/dealers Bruce Hamilton and Russ Cochran suggested Barks instead auction his paintings at conventions and via Cochran's catalog Graphic Gallery. By September 1974 Barks had discontinued taking commissions.",
"title": "Biography"
},
{
"paragraph_id": 40,
"text": "At Boston's NewCon convention, in October 1975, the first Carl Barks oil painting auctioned at a comic book convention (\"She Was Spangled and Flashy\") sold for $2,500. Subsequent offerings saw an escalation in the prices realized.",
"title": "Biography"
},
{
"paragraph_id": 41,
"text": "In 1976, Barks and Garé went to Boston for the NewCon show, their first comic convention appearance. Among the other attendees was famed Little Lulu comic book scripter John Stanley; despite both having worked for Western Publishing this was the first time they met. The highlight of the convention was the auctioning of what was to that time the largest duck oil painting Barks had done, \"July Fourth in Duckburg\", which included depictions of several prominent Barks fans and collectors. It sold for a then record high amount: $6,400.",
"title": "Biography"
},
{
"paragraph_id": 42,
"text": "Soon thereafter a fan sold unauthorized prints of some of the Scrooge McDuck paintings, leading Disney to withdraw permission for further paintings. To meet demand for new work Barks embarked on a series of paintings of non-Disney ducks and fantasy subjects such as Beowulf and Xerxes. These were eventually collected in the limited-edition book Animal Quackers.",
"title": "Biography"
},
{
"paragraph_id": 43,
"text": "As the result of heroic efforts by Star Wars producer Gary Kurtz and screenwriter Edward Summer, Disney relented and, in 1981, allowed Barks to do a now seminal oil painting called Wanderers of Wonderlands for a breakthrough limited edition book entitled Uncle Scrooge McDuck: His Life and Times. The book collected 11 classic Barks stories of Uncle Scrooge colored by artist Peter Ledger along with a new Scrooge story by Barks done storybook style with watercolor illustrations, \"Go Slowly, Sands of Time\". After being turned down by every major publisher in New York City, Kurtz and Summer published the book through Celestial Arts, which Kurtz acquired partly for this purpose. The book went on to become the model for virtually every important collection of comic book stories. It was the first book of its kind ever reviewed in Time magazine and subsequently in Newsweek, and the first book review in Time with large color illustrations.",
"title": "Biography"
},
{
"paragraph_id": 44,
"text": "In 1977 and 1982, Barks attended the San Diego Comic-Con. As with his appearance in Boston, the response to his presence was overwhelming, with long lines of fans waiting to meet Barks and get his autograph.",
"title": "Biography"
},
{
"paragraph_id": 45,
"text": "In 1981, Bruce Hamilton and Russ Cochran, two long-time Disney comics fans, decided to combine forces to bring greater recognition to the works of Carl Barks. Their first efforts went into establishing Another Rainbow Publishing, the banner under which they produced and issued the award-winning book The Fine Art of Walt Disney's Donald Duck by Carl Barks, a comprehensive collection of the Disney duck paintings of this artist and storyteller. Not long after, the company began producing fine art lithographs of many of these paintings, in strictly limited editions, all signed by Barks, who eventually produced many original works for the series.",
"title": "Biography"
},
{
"paragraph_id": 46,
"text": "In 1983, Barks relocated one last time to Grants Pass, Oregon, near where he grew up, partly at the urging of friend and Broom Hilda artist Russell Myers, who lived in the area. The move also was motivated, Barks stated in another famous quip, by Temecula being too close to Disneyland and thus facilitating a growing torrent of drop-in visits by vacationing fans. In this period Barks made only one public appearance, at a comic book shop near Grants Pass.",
"title": "Biography"
},
{
"paragraph_id": 47,
"text": "In 1983, Another Rainbow took up the daunting task of collecting the entire Disney comic book oeuvre of Barks—over 500 stories in all—in the ten-set, thirty-volume Carl Barks Library. These oversized hardbound volumes reproduced Barks' pages in pristine black and white line art, as close as possible to the way he would originally draw them, and included mountains of special features, articles, reminiscences, interviews, storyboards, critiques, and more than a few surprises. This monumental project was finally completed in mid-1990.",
"title": "Biography"
},
{
"paragraph_id": 48,
"text": "In 1985, a new division was founded, Gladstone Publishing, which took up the then-dormant Disney comic book license. Gladstone introduced a new generation of Disney comic book readers to the storytelling of Barks, Paul Murry, and Floyd Gottfredson, as well as presenting the first works of modern Disney comics artists Don Rosa and William Van Horn. Seven years after Gladstone's founding, the Carl Barks Library was revived as the Carl Barks Library in Color, as full-color, high-quality squarebound comic albums (including the first-ever Carl Barks trading cards).",
"title": "Biography"
},
{
"paragraph_id": 49,
"text": "From 1993 to 1998, Barks' career was managed by the \"Carl Barks Studio\" (Bill Grandey and Kathy Morby—they had sold Barks original art since 1979). This involved numerous art projects and activities, including a tour of 11 European countries in 1994, Iceland being the first foreign country he ever visited. Barks appeared at the first of many Disneyana conventions in 1993. Silk screen prints of paintings along with high-end art objects (such as original water colors, bronze figurines and ceramic tiles) were produced based on designs by Barks.",
"title": "Biography"
},
{
"paragraph_id": 50,
"text": "During the summer of 1994 and until his death, Barks and his studio personally assigned Peter Reichelt, a museum exhibition producer from Mannheim, Germany, as his agent for Europe. Publisher \"Edition 313\" put out numerous lithographs. In 1997, tensions between Barks and the Studio eventually resulted in a lawsuit that was settled with an agreement that included the disbanding of the Studio. Barks never traveled to make another Disney appearance. He was represented by Ed Bergen, as he completed a final project. Gerry Tank and Jim Mitchell were to assist Barks in his final years.",
"title": "Biography"
},
{
"paragraph_id": 51,
"text": "During his Carl Barks Studio years, Barks created two more stories: the script for the final Uncle Scrooge story \"Horsing Around with History\", which was first published in Denmark in 1994 with Bill Van Horn art. The outlines for Barks' final Donald Duck story \"Somewhere in Nowhere\", were first published in 1997, in Italy, with art by Pat Block.",
"title": "Biography"
},
{
"paragraph_id": 52,
"text": "Austrian artist Gottfried Helnwein curated and organized the first solo museum-exhibition of Barks. Between 1994 and 1998 the retrospective was shown in ten European museums and seen by more than 400,000 visitors.",
"title": "Biography"
},
{
"paragraph_id": 53,
"text": "At the same time in spring 1994, Reichelt and Ina Brockmann designed a special museum exhibition tour about Barks' life and work. Also represented for the first time at this exhibition were Disney artists Al Taliaferro and Floyd Gottfredson. Since 1995, more than 500,000 visitors have attended the shows in Europe.",
"title": "Biography"
},
{
"paragraph_id": 54,
"text": "Reichelt also translated Michael Barrier's biography of Barks into German and published it in 1994.",
"title": "Biography"
},
{
"paragraph_id": 55,
"text": "Barks spent his final years in a new home in Grants Pass, Oregon, which he and Garé, who died in 1993, had built next door to their original home. In July 1999, he was diagnosed with chronic lymphocytic leukemia, a form of cancer arising from the white blood cells in the bone marrow, for which he received oral chemotherapy. However, as the disease progressed, causing him great discomfort, the ailing Barks decided to stop receiving treatment in June 2000. In spite of his terminal condition, Barks remained, according to caregiver Serene Hunicke, \"funny up to the end\".",
"title": "Biography"
},
{
"paragraph_id": 56,
"text": "The year before, Barks had told the university professor Donald Ault:",
"title": "Biography"
},
{
"paragraph_id": 57,
"text": "I have no apprehension, no fear of death. I do not believe in an afterlife. ... I think of death as total peace. You're beyond the clutches of all those who would crush you.",
"title": "Biography"
},
{
"paragraph_id": 58,
"text": "On August 25, 2000, shortly after midnight, Carl Barks died quietly in his sleep at the age of 99. He was interred in Hillcrest Memorial Cemetery in Grants Pass, beside Garé's grave.",
"title": "Biography"
},
{
"paragraph_id": 59,
"text": "\"(A)n asteroid was named after the Duck Man in 1983 --- 2730 Barks, a carbonaceous C-type asteroid with a diameter of between 10 and 16 kilometers, an ordital period of six years and four months, and a rotation period of just over six hours.\" In a 1983 interview, Barks says that \"Island in the Sky,\" a story about the Ducks traveling to the asteroid belt to find a place Uncle Scrooge can store his money, was his favorite story.",
"title": "Influence"
},
{
"paragraph_id": 60,
"text": "Barks' Donald Duck stories were rated #7 on The Comics Journal list of 100 top comics; his Uncle Scrooge stories were rated #20.",
"title": "Influence"
},
{
"paragraph_id": 61,
"text": "Steven Spielberg and George Lucas have acknowledged that the rolling-boulder booby trap in the opening scene of Raiders of the Lost Ark was inspired by the 1954 Carl Barks Uncle Scrooge adventure \"The Seven Cities of Cibola\" (Uncle Scrooge #7). Lucas and Spielberg have also said that some of Barks' stories about space travel and the depiction of aliens had an influence on them. Lucas wrote the foreword to the 1982 Uncle Scrooge McDuck: His Life and Times. In it he calls Barks' stories \"cinematic\" and \"a priceless part of our literary heritage\".",
"title": "Influence"
},
{
"paragraph_id": 62,
"text": "The Walt Disney Treasures DVD set Chronological Donald, Volume 2 includes a salute to Barks.",
"title": "Influence"
},
{
"paragraph_id": 63,
"text": "Carl Barks has an asteroid named after him, 2730 Barks.",
"title": "Influence"
},
{
"paragraph_id": 64,
"text": "In Almere, Netherlands, a street was named after him: Carl Barksweg. The same neighborhood also includes a Donald Ducklaan and a Goofystraat.",
"title": "Influence"
},
{
"paragraph_id": 65,
"text": "Japanese animator and cartoonist Osamu Tezuka, who created manga such as Astro Boy and Black Jack, was a fan of Barks' work. New Treasure Island, one of Tezuka's first works, was partly influenced by \"Donald Duck Finds Pirate Gold\".",
"title": "Influence"
},
{
"paragraph_id": 66,
"text": "A 1949 Donald Duck ten-pager features Donald raising a yacht from the ocean floor by filling it with ping pong balls. In December 1965 Karl Krøyer, a Dane, lifted the sunken freight vessel Al Kuwait in the Kuwait Harbor by filling the hull with 27 million tiny inflatable balls of polystyrene. Krøyer denies having been inspired by this Barks story. Some sources claim Krøyer was denied a Dutch patent registration (application number NL 6514306) for his invention on the grounds that the Barks story was a prior publication of the invention. Krøyer later successfully raised another ship off Greenland using the same method, and several other sunken vessels worldwide have since been raised by modified versions of this concept. The television show MythBusters also tested this method and was able to raise a small boat.",
"title": "Influence"
},
{
"paragraph_id": 67,
"text": "Don Rosa, one of the most popular living Disney artists, and possibly the one who has been most keen on connecting the various stories into a coherent universe and chronology, considers (with few exceptions) all Barks' duck stories as canon, and all others as apocryphal. Rosa has said that a number of novelists and movie-makers cite Carl Barks as their 'major influence and inspiration'.",
"title": "Influence"
},
{
"paragraph_id": 68,
"text": "When the news of Barks' passing was hardly covered by the press in America, \"in Europe the sad news was flashed instantly across the airwaves and every newspaper — they realized the world had lost one of the most beloved, influential and well-known creators in international culture.\"",
"title": "Influence"
},
{
"paragraph_id": 69,
"text": "In 2010 Oregon Cartoon Institute produced a video about the influence of Carl Barks and Basil Wolverton on Robert Crumb.",
"title": "Influence"
},
{
"paragraph_id": 70,
"text": "The video game Donald Duck: Goin' Quackers is dedicated to the memory of Carl Barks.",
"title": "Influence"
},
{
"paragraph_id": 71,
"text": "Carl Barks drew an early Andy Panda comic book story published in New Funnies #76, 1943. It is one of his few stories to feature humans interacting with talking animal characters (another is Dangerous Disguise, Four Color #308, 1951). See List of Fictional Pandas.",
"title": "Influence"
},
{
"paragraph_id": 72,
"text": "The life story of Carl Barks, largely drawing upon his relationship with Disney and the phonetic similarity of his name to Karl Marx, serves as a loose inspiration to one of the subplots in The Last Song of Manuel Sendero by Ariel Dorfman.",
"title": "Influence"
},
{
"paragraph_id": 73,
"text": "The first image ever to be displayed on an Apple Macintosh was a scan of Carl Barks' Scrooge McDuck.",
"title": "Influence"
},
{
"paragraph_id": 74,
"text": "Films where Barks served as storyman or story director include:",
"title": "Filmography"
},
{
"paragraph_id": 75,
"text": "Barks was an enthusiastic user of Esterbrook pens, and used a Nº 356 model to ink and letter his Donald Duck comic-book pages.",
"title": "Art materials"
},
{
"paragraph_id": 76,
"text": "I used a #356 Esterbrook art and drafting pen which could do everything from thin \"fadeaways\" to broad accented curve sweeps on foreground circles such as the ducks' forms. The trick of breaking in a new pen, I discovered, is to soak it for several minutes in the ink bottle. Then wipe off the ink and the pen's varnish. For some weird reason most new pens then start out flexible and free-flowing",
"title": "Art materials"
},
{
"paragraph_id": 77,
"text": "",
"title": "External links"
}
] | Carl Barks was an American cartoonist, author, and painter. He is best known for his work in Disney comic books, as the writer and artist of the first Donald Duck stories and as the creator of Scrooge McDuck. He worked anonymously until late in his career; fans dubbed him The Duck Man and The Good Duck Artist. In 1987, Barks was one of the three inaugural inductees of the Will Eisner Comic Book Hall of Fame. Barks worked for the Disney Studio and Western Publishing where he created Duckburg and many of its inhabitants, such as Scrooge McDuck (1947), Gladstone Gander (1948), the Beagle Boys (1951), The Junior Woodchucks (1951), Gyro Gearloose (1952), Cornelius Coot (1952), Flintheart Glomgold (1956), John D. Rockerduck (1961) and Magica De Spell (1961). He has been named by animation historian Leonard Maltin as "the most popular and widely read artist-writer in the world". Will Eisner called him "the Hans Christian Andersen of comic books." Beginning especially in the 1980s, Barks' artistic contributions would be a primary source for animated adaptations such as DuckTales and its 2017 remake. | 2001-12-05T17:17:19Z | 2023-12-21T06:10:48Z | [
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7,346 | Centimetre–gram–second system of units | The centimetre–gram–second system of units (CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways in which the CGS system was extended to cover electromagnetism.
The CGS system has been largely supplanted by the MKS system based on the metre, kilogram, and second, which was in turn extended and replaced by the International System of Units (SI). In many fields of science and engineering, SI is the only system of units in use, but there remain certain subfields where CGS is prevalent.
In measurements of purely mechanical systems (involving units of length, mass, force, energy, pressure, and so on), the differences between CGS and SI are straightforward and rather trivial; the unit-conversion factors are all powers of 10 as 100 cm = 1 m and 1000 g = 1 kg. For example, the CGS unit of force is the dyne, which is defined as 1 g⋅cm/s, so the SI unit of force, the newton (1 kg⋅m/s), is equal to 100000 dynes.
On the other hand, in measurements of electromagnetic phenomena (involving units of charge, electric and magnetic fields, voltage, and so on), converting between CGS and SI is more subtle. Formulas for physical laws of electromagnetism (such as Maxwell's equations) take a form that depends on which system of units is being used, because the electromagnetic quantities are defined differently in SI and in CGS. Furthermore, within CGS, there are several plausible ways to define electromagnetic quantities, leading to different "sub-systems", including Gaussian units, "ESU", "EMU", and Heaviside–Lorentz units. Among these choices, Gaussian units are the most common today, and "CGS units" is often intended to refer to CGS-Gaussian units.
The CGS system goes back to a proposal in 1832 by the German mathematician Carl Friedrich Gauss to base a system of absolute units on the three fundamental units of length, mass and time. Gauss chose the units of millimetre, milligram and second. In 1873, a committee of the British Association for the Advancement of Science, including physicists James Clerk Maxwell and William Thomson recommended the general adoption of centimetre, gram and second as fundamental units, and to express all derived electromagnetic units in these fundamental units, using the prefix "C.G.S. unit of ...".
The sizes of many CGS units turned out to be inconvenient for practical purposes. For example, many everyday objects are hundreds or thousands of centimetres long, such as humans, rooms and buildings. Thus the CGS system never gained wide use outside the field of science. Starting in the 1880s, and more significantly by the mid-20th century, CGS was gradually superseded internationally for scientific purposes by the MKS (metre–kilogram–second) system, which in turn developed into the modern SI standard.
Since the international adoption of the MKS standard in the 1940s and the SI standard in the 1960s, the technical use of CGS units has gradually declined worldwide. SI units are predominantly used in engineering applications and physics education, while Gaussian CGS units are commonly used in theoretical physics, describing microscopic systems, relativistic electrodynamics, and astrophysics. CGS units are today no longer accepted by the house styles of most scientific journals, textbook publishers, or standards bodies, although they are commonly used in astronomical journals such as The Astrophysical Journal. The continued usage of CGS units is prevalent in magnetism and related fields because the B and H fields have the same units in free space and there is potential for confusion when converting published measurements from CGS to MKS.
The units gram and centimetre remain useful as noncoherent units within the SI system, as with any other prefixed SI units.
In mechanics, the quantities in the CGS and SI systems are defined identically. The two systems differ only in the scale of the three base units (centimetre versus metre and gram versus kilogram, respectively), with the third unit (second) being the same in both systems.
There is a direct correspondence between the base units of mechanics in CGS and SI. Since the formulae expressing the laws of mechanics are the same in both systems and since both systems are coherent, the definitions of all coherent derived units in terms of the base units are the same in both systems, and there is an unambiguous correspondence of derived units:
Thus, for example, the CGS unit of pressure, barye, is related to the CGS base units of length, mass, and time in the same way as the SI unit of pressure, pascal, is related to the SI base units of length, mass, and time:
Expressing a CGS derived unit in terms of the SI base units, or vice versa, requires combining the scale factors that relate the two systems:
The conversion factors relating electromagnetic units in the CGS and SI systems are made more complex by the differences in the formulae expressing physical laws of electromagnetism as assumed by each system of units, specifically in the nature of the constants that appear in these formulae. This illustrates the fundamental difference in the ways the two systems are built:
Electromagnetic relationships to length, time and mass may be derived by several equally appealing methods. Two of them rely on the forces observed on charges. Two fundamental laws relate (seemingly independently of each other) the electric charge or its rate of change (electric current) to a mechanical quantity such as force. They can be written in system-independent form as follows:
Maxwell's theory of electromagnetism relates these two laws to each other. It states that the ratio of proportionality constants k C {\displaystyle k_{\rm {C}}} and k A {\displaystyle k_{\rm {A}}} must obey k C / k A = c 2 , {\displaystyle k_{\rm {C}}/k_{\rm {A}}=c^{2},} where c is the speed of light in vacuum. Therefore, if one derives the unit of charge from the Coulomb's law by setting k C = 1 {\displaystyle k_{\rm {C}}=1} then Ampère's force law will contain a factor 2 / c 2 . {\displaystyle 2/c^{2}.} Alternatively, deriving the unit of current, and therefore the unit of charge, from the Ampère's force law by setting k A = 1 {\displaystyle k_{\rm {A}}=1} or k A = 1 / 2 , {\displaystyle k_{\rm {A}}=1/2,} will lead to a constant factor in the Coulomb's law.
Indeed, both of these mutually exclusive approaches have been practiced by the users of CGS system, leading to the two independent and mutually exclusive branches of CGS, described in the subsections below. However, the freedom of choice in deriving electromagnetic units from the units of length, mass, and time is not limited to the definition of charge. While the electric field can be related to the work performed by it on a moving electric charge, the magnetic force is always perpendicular to the velocity of the moving charge, and thus the work performed by the magnetic field on any charge is always zero. This leads to a choice between two laws of magnetism, each relating magnetic field to mechanical quantities and electric charge:
These two laws can be used to derive Ampère's force law above, resulting in the relationship: k A = α L ⋅ α B . {\displaystyle k_{\rm {A}}=\alpha _{\rm {L}}\cdot \alpha _{\rm {B}}\;.} Therefore, if the unit of charge is based on the Ampère's force law such that k A = 1 , {\displaystyle k_{\rm {A}}=1,} it is natural to derive the unit of magnetic field by setting α L = α B = 1 . {\displaystyle \alpha _{\rm {L}}=\alpha _{\rm {B}}=1\;.} However, if it is not the case, a choice has to be made as to which of the two laws above is a more convenient basis for deriving the unit of magnetic field.
Furthermore, if we wish to describe the electric displacement field D and the magnetic field H in a medium other than vacuum, we need to also define the constants ε0 and μ0, which are the vacuum permittivity and permeability, respectively. Then we have (generally) D = ϵ 0 E + λ P {\displaystyle \mathbf {D} =\epsilon _{0}\mathbf {E} +\lambda \mathbf {P} } and H = B / μ 0 − λ ′ M , {\displaystyle \mathbf {H} =\mathbf {B} /\mu _{0}-\lambda ^{\prime }\mathbf {M} ,} where P and M are polarization density and magnetization vectors. The units of P and M are usually so chosen that the factors λ and λ′ are equal to the "rationalization constants" 4 π k C ϵ 0 {\displaystyle 4\pi k_{\rm {C}}\epsilon _{0}} and 4 π α B / ( μ 0 α L ) , {\displaystyle 4\pi \alpha _{\rm {B}}/(\mu _{0}\alpha _{\rm {L}}),} respectively. If the rationalization constants are equal, then c 2 = 1 / ( ϵ 0 μ 0 α L 2 ) . {\displaystyle c^{2}=1/(\epsilon _{0}\mu _{0}\alpha _{\rm {L}}^{2}).} If they are equal to one, then the system is said to be "rationalized": the laws for systems of spherical geometry contain factors of 4π (for example, point charges), those of cylindrical geometry – factors of 2π (for example, wires), and those of planar geometry contain no factors of π (for example, parallel-plate capacitors). However, the original CGS system used λ = λ′ = 4π, or, equivalently, k C ϵ 0 = α B / ( μ 0 α L ) = 1. {\displaystyle k_{\rm {C}}\epsilon _{0}=\alpha _{\rm {B}}/(\mu _{0}\alpha _{\rm {L}})=1.} Therefore, Gaussian, ESU, and EMU subsystems of CGS (described below) are not rationalized.
The table below shows the values of the above constants used in some common CGS subsystems:
Also, note the following correspondence of the above constants to those in Jackson and Leung:
Of these variants, only in Gaussian and Heaviside–Lorentz systems α L {\displaystyle \alpha _{\rm {L}}} equals c − 1 {\displaystyle c^{-1}} rather than 1. As a result, vectors E → {\displaystyle {\vec {E}}} and B → {\displaystyle {\vec {B}}} of an electromagnetic wave propagating in vacuum have the same units and are equal in magnitude in these two variants of CGS.
In each of these systems the quantities called "charge" etc. may be a different quantity; they are distinguished here by a superscript. The corresponding quantities of each system are related through a proportionality constant.
Maxwell's equations can be written in each of these systems as:
In the electrostatic units variant of the CGS system, (CGS-ESU), charge is defined as the quantity that obeys a form of Coulomb's law without a multiplying constant (and current is then defined as charge per unit time):
The ESU unit of charge, franklin (Fr), also known as statcoulomb or esu charge, is therefore defined as follows:
two equal point charges spaced 1 centimetre apart are said to be of 1 franklin each if the electrostatic force between them is 1 dyne.
Therefore, in CGS-ESU, a franklin is equal to a centimetre times square root of dyne:
The unit of current is defined as:
In the CGS-ESU system, charge q is therefore has the dimension to MLT.
Other units in the CGS-ESU system include the statampere (1 statC/s) and statvolt (1 erg/statC).
In CGS-ESU, all electric and magnetic quantities are dimensionally expressible in terms of length, mass, and time, and none has an independent dimension. Such a system of units of electromagnetism, in which the dimensions of all electric and magnetic quantities are expressible in terms of the mechanical dimensions of mass, length, and time, is traditionally called an 'absolute system'.
All electromagnetic units in the CGS-ESU system that have not been given names of their own are named as the corresponding SI name with an attached prefix "stat" or with a separate abbreviation "esu", and similarly with the corresponding symbols.
In another variant of the CGS system, electromagnetic units (EMU), current is defined via the force existing between two thin, parallel, infinitely long wires carrying it, and charge is then defined as current multiplied by time. (This approach was eventually used to define the SI unit of ampere as well). In the EMU CGS subsystem, this is done by setting the Ampere force constant k A = 1 {\displaystyle k_{\rm {A}}=1} , so that Ampère's force law simply contains 2 as an explicit factor.
The EMU unit of current, biot (Bi), also known as abampere or emu current, is therefore defined as follows:
The biot is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one centimetre apart in vacuum, would produce between these conductors a force equal to two dynes per centimetre of length.
Therefore, in electromagnetic CGS units, a biot is equal to a square root of dyne:
The unit of charge in CGS EMU is:
Dimensionally in the CGS-EMU system, charge q is therefore equivalent to ML. Hence, neither charge nor current is an independent physical quantity in the CGS-EMU system.
All electromagnetic units in the CGS-EMU system that do not have proper names are denoted by a corresponding SI name with an attached prefix "ab" or with a separate abbreviation "emu".
The ESU and EMU subsystems of CGS are connected by the fundamental relationship k C / k A = c 2 {\displaystyle k_{\rm {C}}/k_{\rm {A}}=c^{2}} (see above), where c = 29979245800 ≈ 3×10 is the speed of light in vacuum in centimetres per second. Therefore, the ratio of the corresponding "primary" electrical and magnetic units (e.g. current, charge, voltage, etc. – quantities proportional to those that enter directly into Coulomb's law or Ampère's force law) is equal either to c or c:
and
Units derived from these may have ratios equal to higher powers of c, for example:
The practical CGS system is a hybrid system that uses the volt and the ampere as the units of voltage and current respectively. Doing this avoids the inconveniently large and small electrical units that arise in the esu and emu systems. This system was at one time widely used by electrical engineers because the volt and ampere had been adopted as international standard units by the International Electrical Congress of 1881. As well as the volt and ampere, the farad (capacitance), ohm (resistance), coulomb (electric charge), and henry (inductance) are consequently also used in the practical system and are the same as the SI units. The magnetic units are those of the emu system.
The electrical units, other than the volt and ampere, are determined by the requirement that any equation involving only electrical and kinematical quantities that is valid in SI should also be valid in the system. For example, since electric field strength is voltage per unit length, its unit is the volt per centimetre, which is one hundred times the SI unit.
The system is electrically rationalized and magnetically unrationalized; i.e., λ = 1 and λ′ = 4π, but the above formula for λ is invalid. A closely related system is the International System of Electric and Magnetic Units, which has a different unit of mass so that the formula for λ′ is invalid. The unit of mass was chosen to remove powers of ten from contexts in which they were considered to be objectionable (e.g., P = VI and F = qE). Inevitably, the powers of ten reappeared in other contexts, but the effect was to make the familiar joule and watt the units of work and power respectively.
The ampere-turn system is constructed in a similar way by considering magnetomotive force and magnetic field strength to be electrical quantities and rationalizing the system by dividing the units of magnetic pole strength and magnetization by 4π. The units of the first two quantities are the ampere and the ampere per centimetre respectively. The unit of magnetic permeability is that of the emu system, and the magnetic constitutive equations are B = (4π/10)μH and B = (4π/10)μ0H + μ0M. Magnetic reluctance is given a hybrid unit to ensure the validity of Ohm's law for magnetic circuits.
There were at various points in time about half a dozen systems of electromagnetic units in use, most based on the CGS system. These include the Gaussian units and the Heaviside–Lorentz units.
In this table, c = 29979245800 is the dimensionless numeric value of the speed of light in vacuum when expressed in units of centimetres per second. The symbol "≘" is used instead of "=" as a reminder that the quantities are corresponding but not in general equal, even between CGS variants. For example, according to the next-to-last row of the table, if a capacitor has a capacitance of 1 F in SI, then it has a capacitance of (10 c) cm in ESU; but it is incorrect to replace "1 F" with "(10 c) cm" within an equation or formula. (This warning is a special aspect of electromagnetism units in CGS. By contrast, for example, it is always correct to replace "1 m" with "100 cm" within an equation or formula.)
One can think of the SI value of the Coulomb constant kC as:
This explains why SI to ESU conversions involving factors of c lead to significant simplifications of the ESU units, such as 1 statF = 1 cm and 1 statΩ = 1 s/cm: this is the consequence of the fact that in ESU system kC = 1. For example, a centimetre of capacitance is the capacitance of a sphere of radius 1 cm in vacuum. The capacitance C between two concentric spheres of radii R and r in ESU CGS system is:
By taking the limit as R goes to infinity we see C equals r.
While the absence of constant coefficients in the formulae expressing some relation between the quantities in some CGS subsystems simplifies some calculations, it has the disadvantage that sometimes the units in CGS are hard to define through experiment. Also, lack of unique unit names leads to a great confusion: thus "15 emu" may mean either 15 abvolts, or 15 emu units of electric dipole moment, or 15 emu units of magnetic susceptibility, sometimes (but not always) per gram, or per mole. On the other hand, SI starts with a unit of current, the ampere, that is easier to determine through experiment, but which requires extra coefficients in the electromagnetic equations. With its system of uniquely named units, the SI also removes any confusion in usage: 1 ampere is a fixed value of a specified quantity, and so are 1 henry, 1 ohm, and 1 volt.
An advantage of the CGS-Gaussian system is that electric and magnetic fields have the same units, 4πε0 is replaced by 1, and the only dimensional constant appearing in the Maxwell equations is c, the speed of light. The Heaviside–Lorentz system has these properties as well (with ε0 equaling 1), but it is a "rationalized" system (as is SI) in which the charges and fields are defined in such a way that there are fewer factors of 4π appearing in the formulas, and it is in Heaviside–Lorentz units that the Maxwell equations take their simplest form.
In SI, and other rationalized systems (for example, Heaviside–Lorentz), the unit of current was chosen such that electromagnetic equations concerning charged spheres contain 4π, those concerning coils of current and straight wires contain 2π and those dealing with charged surfaces lack π entirely, which was the most convenient choice for applications in electrical engineering. However, modern hand calculators and personal computers have eliminated this "advantage". In some fields where formulas concerning spheres are common (for example, in astrophysics), it has been argued that the nonrationalized CGS system can be somewhat more convenient notationally.
Specialized unit systems are used to simplify formulas even further than either SI or CGS, by eliminating constants through some system of natural units. For example, in particle physics a system is in use where every quantity is expressed by only one unit of energy, the electronvolt, with lengths, times, and so on all converted into electronvolts by inserting factors of speed of light c and the reduced Planck constant ħ. This unit system is convenient for calculations in particle physics, but it would be considered impractical in other contexts. | [
{
"paragraph_id": 0,
"text": "The centimetre–gram–second system of units (CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways in which the CGS system was extended to cover electromagnetism.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The CGS system has been largely supplanted by the MKS system based on the metre, kilogram, and second, which was in turn extended and replaced by the International System of Units (SI). In many fields of science and engineering, SI is the only system of units in use, but there remain certain subfields where CGS is prevalent.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In measurements of purely mechanical systems (involving units of length, mass, force, energy, pressure, and so on), the differences between CGS and SI are straightforward and rather trivial; the unit-conversion factors are all powers of 10 as 100 cm = 1 m and 1000 g = 1 kg. For example, the CGS unit of force is the dyne, which is defined as 1 g⋅cm/s, so the SI unit of force, the newton (1 kg⋅m/s), is equal to 100000 dynes.",
"title": ""
},
{
"paragraph_id": 3,
"text": "On the other hand, in measurements of electromagnetic phenomena (involving units of charge, electric and magnetic fields, voltage, and so on), converting between CGS and SI is more subtle. Formulas for physical laws of electromagnetism (such as Maxwell's equations) take a form that depends on which system of units is being used, because the electromagnetic quantities are defined differently in SI and in CGS. Furthermore, within CGS, there are several plausible ways to define electromagnetic quantities, leading to different \"sub-systems\", including Gaussian units, \"ESU\", \"EMU\", and Heaviside–Lorentz units. Among these choices, Gaussian units are the most common today, and \"CGS units\" is often intended to refer to CGS-Gaussian units.",
"title": ""
},
{
"paragraph_id": 4,
"text": "The CGS system goes back to a proposal in 1832 by the German mathematician Carl Friedrich Gauss to base a system of absolute units on the three fundamental units of length, mass and time. Gauss chose the units of millimetre, milligram and second. In 1873, a committee of the British Association for the Advancement of Science, including physicists James Clerk Maxwell and William Thomson recommended the general adoption of centimetre, gram and second as fundamental units, and to express all derived electromagnetic units in these fundamental units, using the prefix \"C.G.S. unit of ...\".",
"title": "History"
},
{
"paragraph_id": 5,
"text": "The sizes of many CGS units turned out to be inconvenient for practical purposes. For example, many everyday objects are hundreds or thousands of centimetres long, such as humans, rooms and buildings. Thus the CGS system never gained wide use outside the field of science. Starting in the 1880s, and more significantly by the mid-20th century, CGS was gradually superseded internationally for scientific purposes by the MKS (metre–kilogram–second) system, which in turn developed into the modern SI standard.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Since the international adoption of the MKS standard in the 1940s and the SI standard in the 1960s, the technical use of CGS units has gradually declined worldwide. SI units are predominantly used in engineering applications and physics education, while Gaussian CGS units are commonly used in theoretical physics, describing microscopic systems, relativistic electrodynamics, and astrophysics. CGS units are today no longer accepted by the house styles of most scientific journals, textbook publishers, or standards bodies, although they are commonly used in astronomical journals such as The Astrophysical Journal. The continued usage of CGS units is prevalent in magnetism and related fields because the B and H fields have the same units in free space and there is potential for confusion when converting published measurements from CGS to MKS.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "The units gram and centimetre remain useful as noncoherent units within the SI system, as with any other prefixed SI units.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "In mechanics, the quantities in the CGS and SI systems are defined identically. The two systems differ only in the scale of the three base units (centimetre versus metre and gram versus kilogram, respectively), with the third unit (second) being the same in both systems.",
"title": "Definition of CGS units in mechanics"
},
{
"paragraph_id": 9,
"text": "There is a direct correspondence between the base units of mechanics in CGS and SI. Since the formulae expressing the laws of mechanics are the same in both systems and since both systems are coherent, the definitions of all coherent derived units in terms of the base units are the same in both systems, and there is an unambiguous correspondence of derived units:",
"title": "Definition of CGS units in mechanics"
},
{
"paragraph_id": 10,
"text": "Thus, for example, the CGS unit of pressure, barye, is related to the CGS base units of length, mass, and time in the same way as the SI unit of pressure, pascal, is related to the SI base units of length, mass, and time:",
"title": "Definition of CGS units in mechanics"
},
{
"paragraph_id": 11,
"text": "Expressing a CGS derived unit in terms of the SI base units, or vice versa, requires combining the scale factors that relate the two systems:",
"title": "Definition of CGS units in mechanics"
},
{
"paragraph_id": 12,
"text": "The conversion factors relating electromagnetic units in the CGS and SI systems are made more complex by the differences in the formulae expressing physical laws of electromagnetism as assumed by each system of units, specifically in the nature of the constants that appear in these formulae. This illustrates the fundamental difference in the ways the two systems are built:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 13,
"text": "Electromagnetic relationships to length, time and mass may be derived by several equally appealing methods. Two of them rely on the forces observed on charges. Two fundamental laws relate (seemingly independently of each other) the electric charge or its rate of change (electric current) to a mechanical quantity such as force. They can be written in system-independent form as follows:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 14,
"text": "Maxwell's theory of electromagnetism relates these two laws to each other. It states that the ratio of proportionality constants k C {\\displaystyle k_{\\rm {C}}} and k A {\\displaystyle k_{\\rm {A}}} must obey k C / k A = c 2 , {\\displaystyle k_{\\rm {C}}/k_{\\rm {A}}=c^{2},} where c is the speed of light in vacuum. Therefore, if one derives the unit of charge from the Coulomb's law by setting k C = 1 {\\displaystyle k_{\\rm {C}}=1} then Ampère's force law will contain a factor 2 / c 2 . {\\displaystyle 2/c^{2}.} Alternatively, deriving the unit of current, and therefore the unit of charge, from the Ampère's force law by setting k A = 1 {\\displaystyle k_{\\rm {A}}=1} or k A = 1 / 2 , {\\displaystyle k_{\\rm {A}}=1/2,} will lead to a constant factor in the Coulomb's law.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 15,
"text": "Indeed, both of these mutually exclusive approaches have been practiced by the users of CGS system, leading to the two independent and mutually exclusive branches of CGS, described in the subsections below. However, the freedom of choice in deriving electromagnetic units from the units of length, mass, and time is not limited to the definition of charge. While the electric field can be related to the work performed by it on a moving electric charge, the magnetic force is always perpendicular to the velocity of the moving charge, and thus the work performed by the magnetic field on any charge is always zero. This leads to a choice between two laws of magnetism, each relating magnetic field to mechanical quantities and electric charge:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 16,
"text": "These two laws can be used to derive Ampère's force law above, resulting in the relationship: k A = α L ⋅ α B . {\\displaystyle k_{\\rm {A}}=\\alpha _{\\rm {L}}\\cdot \\alpha _{\\rm {B}}\\;.} Therefore, if the unit of charge is based on the Ampère's force law such that k A = 1 , {\\displaystyle k_{\\rm {A}}=1,} it is natural to derive the unit of magnetic field by setting α L = α B = 1 . {\\displaystyle \\alpha _{\\rm {L}}=\\alpha _{\\rm {B}}=1\\;.} However, if it is not the case, a choice has to be made as to which of the two laws above is a more convenient basis for deriving the unit of magnetic field.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 17,
"text": "Furthermore, if we wish to describe the electric displacement field D and the magnetic field H in a medium other than vacuum, we need to also define the constants ε0 and μ0, which are the vacuum permittivity and permeability, respectively. Then we have (generally) D = ϵ 0 E + λ P {\\displaystyle \\mathbf {D} =\\epsilon _{0}\\mathbf {E} +\\lambda \\mathbf {P} } and H = B / μ 0 − λ ′ M , {\\displaystyle \\mathbf {H} =\\mathbf {B} /\\mu _{0}-\\lambda ^{\\prime }\\mathbf {M} ,} where P and M are polarization density and magnetization vectors. The units of P and M are usually so chosen that the factors λ and λ′ are equal to the \"rationalization constants\" 4 π k C ϵ 0 {\\displaystyle 4\\pi k_{\\rm {C}}\\epsilon _{0}} and 4 π α B / ( μ 0 α L ) , {\\displaystyle 4\\pi \\alpha _{\\rm {B}}/(\\mu _{0}\\alpha _{\\rm {L}}),} respectively. If the rationalization constants are equal, then c 2 = 1 / ( ϵ 0 μ 0 α L 2 ) . {\\displaystyle c^{2}=1/(\\epsilon _{0}\\mu _{0}\\alpha _{\\rm {L}}^{2}).} If they are equal to one, then the system is said to be \"rationalized\": the laws for systems of spherical geometry contain factors of 4π (for example, point charges), those of cylindrical geometry – factors of 2π (for example, wires), and those of planar geometry contain no factors of π (for example, parallel-plate capacitors). However, the original CGS system used λ = λ′ = 4π, or, equivalently, k C ϵ 0 = α B / ( μ 0 α L ) = 1. {\\displaystyle k_{\\rm {C}}\\epsilon _{0}=\\alpha _{\\rm {B}}/(\\mu _{0}\\alpha _{\\rm {L}})=1.} Therefore, Gaussian, ESU, and EMU subsystems of CGS (described below) are not rationalized.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 18,
"text": "The table below shows the values of the above constants used in some common CGS subsystems:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 19,
"text": "Also, note the following correspondence of the above constants to those in Jackson and Leung:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 20,
"text": "Of these variants, only in Gaussian and Heaviside–Lorentz systems α L {\\displaystyle \\alpha _{\\rm {L}}} equals c − 1 {\\displaystyle c^{-1}} rather than 1. As a result, vectors E → {\\displaystyle {\\vec {E}}} and B → {\\displaystyle {\\vec {B}}} of an electromagnetic wave propagating in vacuum have the same units and are equal in magnitude in these two variants of CGS.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 21,
"text": "In each of these systems the quantities called \"charge\" etc. may be a different quantity; they are distinguished here by a superscript. The corresponding quantities of each system are related through a proportionality constant.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 22,
"text": "Maxwell's equations can be written in each of these systems as:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 23,
"text": "In the electrostatic units variant of the CGS system, (CGS-ESU), charge is defined as the quantity that obeys a form of Coulomb's law without a multiplying constant (and current is then defined as charge per unit time):",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 24,
"text": "The ESU unit of charge, franklin (Fr), also known as statcoulomb or esu charge, is therefore defined as follows:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 25,
"text": "two equal point charges spaced 1 centimetre apart are said to be of 1 franklin each if the electrostatic force between them is 1 dyne.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 26,
"text": "Therefore, in CGS-ESU, a franklin is equal to a centimetre times square root of dyne:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 27,
"text": "The unit of current is defined as:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 28,
"text": "In the CGS-ESU system, charge q is therefore has the dimension to MLT.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 29,
"text": "Other units in the CGS-ESU system include the statampere (1 statC/s) and statvolt (1 erg/statC).",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 30,
"text": "In CGS-ESU, all electric and magnetic quantities are dimensionally expressible in terms of length, mass, and time, and none has an independent dimension. Such a system of units of electromagnetism, in which the dimensions of all electric and magnetic quantities are expressible in terms of the mechanical dimensions of mass, length, and time, is traditionally called an 'absolute system'.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 31,
"text": "All electromagnetic units in the CGS-ESU system that have not been given names of their own are named as the corresponding SI name with an attached prefix \"stat\" or with a separate abbreviation \"esu\", and similarly with the corresponding symbols.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 32,
"text": "In another variant of the CGS system, electromagnetic units (EMU), current is defined via the force existing between two thin, parallel, infinitely long wires carrying it, and charge is then defined as current multiplied by time. (This approach was eventually used to define the SI unit of ampere as well). In the EMU CGS subsystem, this is done by setting the Ampere force constant k A = 1 {\\displaystyle k_{\\rm {A}}=1} , so that Ampère's force law simply contains 2 as an explicit factor.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 33,
"text": "The EMU unit of current, biot (Bi), also known as abampere or emu current, is therefore defined as follows:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 34,
"text": "The biot is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one centimetre apart in vacuum, would produce between these conductors a force equal to two dynes per centimetre of length.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 35,
"text": "Therefore, in electromagnetic CGS units, a biot is equal to a square root of dyne:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 36,
"text": "The unit of charge in CGS EMU is:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 37,
"text": "Dimensionally in the CGS-EMU system, charge q is therefore equivalent to ML. Hence, neither charge nor current is an independent physical quantity in the CGS-EMU system.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 38,
"text": "All electromagnetic units in the CGS-EMU system that do not have proper names are denoted by a corresponding SI name with an attached prefix \"ab\" or with a separate abbreviation \"emu\".",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 39,
"text": "The ESU and EMU subsystems of CGS are connected by the fundamental relationship k C / k A = c 2 {\\displaystyle k_{\\rm {C}}/k_{\\rm {A}}=c^{2}} (see above), where c = 29979245800 ≈ 3×10 is the speed of light in vacuum in centimetres per second. Therefore, the ratio of the corresponding \"primary\" electrical and magnetic units (e.g. current, charge, voltage, etc. – quantities proportional to those that enter directly into Coulomb's law or Ampère's force law) is equal either to c or c:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 40,
"text": "and",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 41,
"text": "Units derived from these may have ratios equal to higher powers of c, for example:",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 42,
"text": "The practical CGS system is a hybrid system that uses the volt and the ampere as the units of voltage and current respectively. Doing this avoids the inconveniently large and small electrical units that arise in the esu and emu systems. This system was at one time widely used by electrical engineers because the volt and ampere had been adopted as international standard units by the International Electrical Congress of 1881. As well as the volt and ampere, the farad (capacitance), ohm (resistance), coulomb (electric charge), and henry (inductance) are consequently also used in the practical system and are the same as the SI units. The magnetic units are those of the emu system.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 43,
"text": "The electrical units, other than the volt and ampere, are determined by the requirement that any equation involving only electrical and kinematical quantities that is valid in SI should also be valid in the system. For example, since electric field strength is voltage per unit length, its unit is the volt per centimetre, which is one hundred times the SI unit.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 44,
"text": "The system is electrically rationalized and magnetically unrationalized; i.e., λ = 1 and λ′ = 4π, but the above formula for λ is invalid. A closely related system is the International System of Electric and Magnetic Units, which has a different unit of mass so that the formula for λ′ is invalid. The unit of mass was chosen to remove powers of ten from contexts in which they were considered to be objectionable (e.g., P = VI and F = qE). Inevitably, the powers of ten reappeared in other contexts, but the effect was to make the familiar joule and watt the units of work and power respectively.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 45,
"text": "The ampere-turn system is constructed in a similar way by considering magnetomotive force and magnetic field strength to be electrical quantities and rationalizing the system by dividing the units of magnetic pole strength and magnetization by 4π. The units of the first two quantities are the ampere and the ampere per centimetre respectively. The unit of magnetic permeability is that of the emu system, and the magnetic constitutive equations are B = (4π/10)μH and B = (4π/10)μ0H + μ0M. Magnetic reluctance is given a hybrid unit to ensure the validity of Ohm's law for magnetic circuits.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 46,
"text": "There were at various points in time about half a dozen systems of electromagnetic units in use, most based on the CGS system. These include the Gaussian units and the Heaviside–Lorentz units.",
"title": "Derivation of CGS units in electromagnetism"
},
{
"paragraph_id": 47,
"text": "In this table, c = 29979245800 is the dimensionless numeric value of the speed of light in vacuum when expressed in units of centimetres per second. The symbol \"≘\" is used instead of \"=\" as a reminder that the quantities are corresponding but not in general equal, even between CGS variants. For example, according to the next-to-last row of the table, if a capacitor has a capacitance of 1 F in SI, then it has a capacitance of (10 c) cm in ESU; but it is incorrect to replace \"1 F\" with \"(10 c) cm\" within an equation or formula. (This warning is a special aspect of electromagnetism units in CGS. By contrast, for example, it is always correct to replace \"1 m\" with \"100 cm\" within an equation or formula.)",
"title": "Electromagnetic units in various CGS systems"
},
{
"paragraph_id": 48,
"text": "One can think of the SI value of the Coulomb constant kC as:",
"title": "Electromagnetic units in various CGS systems"
},
{
"paragraph_id": 49,
"text": "This explains why SI to ESU conversions involving factors of c lead to significant simplifications of the ESU units, such as 1 statF = 1 cm and 1 statΩ = 1 s/cm: this is the consequence of the fact that in ESU system kC = 1. For example, a centimetre of capacitance is the capacitance of a sphere of radius 1 cm in vacuum. The capacitance C between two concentric spheres of radii R and r in ESU CGS system is:",
"title": "Electromagnetic units in various CGS systems"
},
{
"paragraph_id": 50,
"text": "By taking the limit as R goes to infinity we see C equals r.",
"title": "Electromagnetic units in various CGS systems"
},
{
"paragraph_id": 51,
"text": "While the absence of constant coefficients in the formulae expressing some relation between the quantities in some CGS subsystems simplifies some calculations, it has the disadvantage that sometimes the units in CGS are hard to define through experiment. Also, lack of unique unit names leads to a great confusion: thus \"15 emu\" may mean either 15 abvolts, or 15 emu units of electric dipole moment, or 15 emu units of magnetic susceptibility, sometimes (but not always) per gram, or per mole. On the other hand, SI starts with a unit of current, the ampere, that is easier to determine through experiment, but which requires extra coefficients in the electromagnetic equations. With its system of uniquely named units, the SI also removes any confusion in usage: 1 ampere is a fixed value of a specified quantity, and so are 1 henry, 1 ohm, and 1 volt.",
"title": "Advantages and disadvantages"
},
{
"paragraph_id": 52,
"text": "An advantage of the CGS-Gaussian system is that electric and magnetic fields have the same units, 4πε0 is replaced by 1, and the only dimensional constant appearing in the Maxwell equations is c, the speed of light. The Heaviside–Lorentz system has these properties as well (with ε0 equaling 1), but it is a \"rationalized\" system (as is SI) in which the charges and fields are defined in such a way that there are fewer factors of 4π appearing in the formulas, and it is in Heaviside–Lorentz units that the Maxwell equations take their simplest form.",
"title": "Advantages and disadvantages"
},
{
"paragraph_id": 53,
"text": "In SI, and other rationalized systems (for example, Heaviside–Lorentz), the unit of current was chosen such that electromagnetic equations concerning charged spheres contain 4π, those concerning coils of current and straight wires contain 2π and those dealing with charged surfaces lack π entirely, which was the most convenient choice for applications in electrical engineering. However, modern hand calculators and personal computers have eliminated this \"advantage\". In some fields where formulas concerning spheres are common (for example, in astrophysics), it has been argued that the nonrationalized CGS system can be somewhat more convenient notationally.",
"title": "Advantages and disadvantages"
},
{
"paragraph_id": 54,
"text": "Specialized unit systems are used to simplify formulas even further than either SI or CGS, by eliminating constants through some system of natural units. For example, in particle physics a system is in use where every quantity is expressed by only one unit of energy, the electronvolt, with lengths, times, and so on all converted into electronvolts by inserting factors of speed of light c and the reduced Planck constant ħ. This unit system is convenient for calculations in particle physics, but it would be considered impractical in other contexts.",
"title": "Advantages and disadvantages"
}
] | The centimetre–gram–second system of units is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways in which the CGS system was extended to cover electromagnetism. The CGS system has been largely supplanted by the MKS system based on the metre, kilogram, and second, which was in turn extended and replaced by the International System of Units (SI). In many fields of science and engineering, SI is the only system of units in use, but there remain certain subfields where CGS is prevalent. In measurements of purely mechanical systems, the differences between CGS and SI are straightforward and rather trivial; the unit-conversion factors are all powers of 10 as 100 cm = 1 m and 1000 g = 1 kg. For example, the CGS unit of force is the dyne, which is defined as 1 g⋅cm/s2, so the SI unit of force, the newton (1 kg⋅m/s2), is equal to 100000 dynes. On the other hand, in measurements of electromagnetic phenomena, converting between CGS and SI is more subtle. Formulas for physical laws of electromagnetism take a form that depends on which system of units is being used, because the electromagnetic quantities are defined differently in SI and in CGS. Furthermore, within CGS, there are several plausible ways to define electromagnetic quantities, leading to different "sub-systems", including Gaussian units, "ESU", "EMU", and Heaviside–Lorentz units. Among these choices, Gaussian units are the most common today, and "CGS units" is often intended to refer to CGS-Gaussian units. | 2001-12-05T18:37:56Z | 2023-10-10T02:32:07Z | [
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7,355 | Christology | In Christianity, Christology (from the Greek Χριστός, Khristós and -λογία, -logia), translated from Greek as 'the study of Christ', is a branch of theology that concerns Jesus. Different denominations have different opinions on questions such as whether Jesus was human, divine, or both, and as a messiah what his role would be in the freeing of the Jewish people from foreign rulers or in the prophesied Kingdom of God, and in the salvation from what would otherwise be the consequences of sin.
The earliest Christian writings gave several titles to Jesus, such as Son of Man, Son of God, Messiah, and Kyrios, which were all derived from Hebrew scripture. These terms centered around two opposing themes, namely "Jesus as a preexistent figure who becomes human and then returns to God", versus adoptionism – that Jesus was human who was "adopted" by God at his baptism, crucifixion, or resurrection.
From the second to the fifth centuries, the relation of the human and divine nature of Christ was a major focus of debates in the early church and at the first seven ecumenical councils. The Council of Chalcedon in 451 issued a formulation of the hypostatic union of the two natures of Christ, one human and one divine, "united with neither confusion nor division". Most of the major branches of Western Christianity and Eastern Orthodoxy subscribe to this formulation, while many branches of Oriental Orthodox Churches reject it, subscribing to miaphysitism.
Christology (from the Greek Χριστός, Khristós and -λογία, -logia), literally 'the understanding of Christ', is the study of the nature (person) and work (role in salvation) of Jesus Christ. It studies Jesus Christ's humanity and divinity, and the relation between these two aspects; and the role he plays in salvation.
"Ontological Christology" analyzes the nature or being of Jesus Christ. "Functional Christology" analyzes the works of Jesus Christ, while "soteriological Christology" analyzes the "salvific" standpoints of Christology.
Several approaches can be distinguished within Christology. The term Christology from above or high Christology refers to approaches that include aspects of divinity, such as Lord and Son of God, and the idea of the pre-existence of Christ as the Logos ('the Word'), as expressed in the prologue to the Gospel of John. These approaches interpret the works of Christ in terms of his divinity. According to Pannenberg, Christology from above "was far more common in the ancient Church, beginning with Ignatius of Antioch and the second century Apologists." The term Christology from below or low Christology refers to approaches that begin with the human aspects and the ministry of Jesus (including the miracles, parables, etc.) and move towards his divinity and the mystery of incarnation.
A basic Christological teaching is that the person of Jesus Christ is both human and divine. The human and divine natures of Jesus Christ apparently (prosopic) form a duality, as they coexist within one person (hypostasis). There are no direct discussions in the New Testament regarding the dual nature of the Person of Christ as both divine and human, and since the early days of Christianity, theologians have debated various approaches to the understanding of these natures, at times resulting in ecumenical councils, and schisms.
Some historical christological doctrines gained broad support:
Influential Christologies which were broadly condemned as heretical are:
Various church councils, mainly in the 4th and 5th centuries, resolved most of these controversies, making the doctrine of the Trinity orthodox in nearly all branches of Christianity. Among them, only the Dyophysite doctrine was recognized as true and not heretical, belonging to the Christian orthodoxy and deposit of faith.
In Christian theology, atonement is the method by which human beings can be reconciled to God through Christ's sacrificial suffering and death. Atonement is the forgiving or pardoning of sin in general and original sin in particular through the suffering, death and resurrection of Jesus, enabling the reconciliation between God and his creation. Due to the influence of Gustaf Aulèn's (1879–1978) Christus Victor (1931), the various theories or paradigmata of atonement are often grouped as "classical paradigm", "objective paradigm", and the "subjective paradigm":
Other theories are the "embracement theory" and the "shared atonement" theory.
The earliest christological reflections were shaped by both the Jewish background of the earliest Christians, and by the Greek world of the eastern Mediterranean in which they operated. The earliest Christian writings give several titles to Jesus, such as Son of Man, Son of God, Messiah, and Kyrios, which were all derived from Hebrew scripture. According to Matt Stefon and Hans J. Hillerbrand:
Until the middle of the 2nd century, such terms emphasized two themes: that of Jesus as a preexistent figure who becomes human and then returns to God and that of Jesus as a creature elected and "adopted" by God. The first theme makes use of concepts drawn from Classical antiquity, whereas the second relies on concepts characteristic of ancient Jewish thought. The second theme subsequently became the basis of "adoptionist Christology" (see adoptionism), which viewed Jesus' baptism as a crucial event in his adoption by God.
Historically in the Alexandrian school of thought (fashioned on the Gospel of John), Jesus Christ is the eternal Logos who already possesses unity with the Father before the act of Incarnation. In contrast, the Antiochian school viewed Christ as a single, unified human person apart from his relationship to the divine.
The notion of pre-existence is deeply rooted in Jewish thought, and can be found in apocalyptic thought and among the rabbis of Paul's time, but Paul was most influenced by Jewish-Hellenistic wisdom literature, where "'Wisdom' is extolled as something existing before the world and already working in creation. According to Witherington, Paul "subscribed to the christological notion that Christ existed prior to taking on human flesh[,] founding the story of Christ [...] on the story of divine Wisdom".
The title Kyrios for Jesus is central to the development of New Testament Christology. In the Septuagint it translates the Tetragrammaton, the holy Name of God. As such, it closely links Jesus with God – in the same way a verse such as Matthew 28:19, "The Name (singular) of the Father, the Son, and the Holy Spirit".
Kyrios is also conjectured to be the Greek translation of Aramaic Mari, which in everyday Aramaic usage was a very respectful form of polite address, which means more than just 'teacher' and was somewhat similar to 'rabbi'. While the term Mari expressed the relationship between Jesus and his disciples during his life, the Greek Kyrios came to represent his lordship over the world.
The early Christians placed Kyrios at the center of their understanding, and from that center attempted to understand the other issues related to the Christian mysteries. The question of the deity of Christ in the New Testament is inherently related to the Kyrios title of Jesus used in the early Christian writings and its implications for the absolute lordship of Jesus. In early Christian belief, the concept of Kyrios included the pre-existence of Christ, for they believed if Christ is one with God, he must have been united with God from the very beginning.
Two fundamentally different Christologies developed in the early Church, namely a "low" or adoptionist Christology, and a "high" or "incarnation" Christology. The chronology of the development of these early Christologies is a matter of debate within contemporary scholarship.
The "low Christology" or "adoptionist Christology" is the belief "that God exalted Jesus to be his Son by raising him from the dead", thereby raising him to "divine status". According to the "evolutionary model" or evolutionary theories, the Christological understanding of Jesus developed over time, as witnessed in the Gospels, with the earliest Christians believing that Jesus was a human who was exalted, or else adopted as God's Son, when he was resurrected. Later beliefs shifted the exaltation to his baptism, birth, and subsequently to the idea of his pre-existence, as witnessed in the Gospel of John. This "evolutionary model" was proposed by proponents of the Religionsgeschichtliche Schule, especially Wilhelm Bousset's influential Kyrios Christos (1913). This evolutionary model was very influential, and the "low Christology" has long been regarded as the oldest Christology.
The other early Christology is "high Christology", which is "the view that Jesus was a pre-existent divine being who became a human, did the Father's will on earth, and then was taken back up into heaven whence he had originally come", and from where he appeared on earth. According to Bousset, this "high Christology" developed at the time of Paul's writing, under the influence of Gentile Christians, who brought their pagan Hellenistic traditions to the early Christian communities, introducing divine honours to Jesus. According to Casey and Dunn, this "high Christology" developed after the time of Paul, at the end of the first century CE when the Gospel of John was written.
Since the 1970s, these late datings for the development of a "high Christology" have been contested, and a majority of scholars argue that this "high Christology" existed already before the writings of Paul. According to the "New Religionsgeschichtliche Schule", or the Early High Christology Club, which includes Martin Hengel, Larry Hurtado, N. T. Wright, and Richard Bauckham, this "incarnation Christology" or "high Christology" did not evolve over a longer time, but was a "big bang" of ideas which were already present at the start of Christianity, and took further shape in the first few decades of the church, as witnessed in the writings of Paul. Some 'Early High Christology' proponents scholars argue that this "high Christology" may go back to Jesus himself.
There is a controversy regarding whether Jesus himself claimed to be divine. In Honest to God, then-Bishop of Woolwich, John A. T. Robinson, questioned the idea. John Hick, writing in 1993, mentioned changes in New Testament studies, citing "broad agreement" that scholars do not today support the view that Jesus claimed to be God, quoting as examples Michael Ramsey (1980), C. F. D. Moule (1977), James Dunn (1980), Brian Hebblethwaite (1985) and David Brown (1985). Larry Hurtado, who argues that the followers of Jesus within a very short period developed an exceedingly high level of devotional reverence to Jesus, at the same time rejects the view that Jesus made a claim to messiahship or divinity to his disciples during his life as "naive and ahistorical". According to Gerd Lüdemann, the broad consensus among modern New Testament scholars is that the proclamation of the divinity of Jesus was a development within the earliest Christian communities. N. T. Wright points out that arguments over the claims of Jesus regarding divinity have been passed over by more recent scholarship, which sees a more complex understanding of the idea of God in first century Judaism. However, Andrew Loke argues that if Jesus did not claim and show himself to be truly divine and rise from the dead, the earliest Christian leaders who were devout ancient monotheistic Jews would have regarded Jesus as merely a teacher or a prophet; they would not have come to the widespread agreement that he was truly divine, which they did.
The study of the various Christologies of the Apostolic Age is based on early Christian documents.
The oldest Christian sources are the writings of Paul. The central Christology of Paul conveys the notion of Christ's pre-existence and the identification of Christ as Kyrios. Both notions already existed before him in the early Christian communities, and Paul deepened them and used them for preaching in the Hellenistic communities.
What exactly Paul believed about the nature of Jesus cannot be determined decisively. In Philippians 2, Paul states that Jesus was preexistent and came to Earth "by taking the form of a servant, being made in human likeness". This sounds like an incarnation Christology. In Romans 1:4, however, Paul states that Jesus "was declared with power to be the Son of God by his resurrection from the dead", which sounds like an adoptionistic Christology, where Jesus was a human being who was "adopted" after his death. Different views would be debated for centuries by Christians and finally settled on the idea that he was both fully human and fully divine by the middle of the 5th century in the Council of Ephesus. Paul's thoughts on Jesus' teachings, versus his nature and being, are more defined, in that Paul believed Jesus was sent as an atonement for the sins of everyone.
The Pauline epistles use Kyrios to identify Jesus almost 230 times, and express the theme that the true mark of a Christian is the confession of Jesus as the true Lord. Paul viewed the superiority of the Christian revelation over all other divine manifestations as a consequence of the fact that Christ is the Son of God.
The Pauline epistles also advanced the "cosmic Christology" later developed in the Gospel of John, elaborating the cosmic implications of Jesus' existence as the Son of God: "Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come." Paul writes that Christ came to draw all back to God: "Through him God was pleased to reconcile to himself all things, whether on earth or in heaven" (Colossians 1:20); in the same epistle, he writes that "He is the image of the invisible God, the firstborn of all creation" (Colossians 1:15).
The synoptic Gospels date from after the writings of Paul. They provide episodes from the life of Jesus and some of his works, but the authors of the New Testament show little interest in an absolute chronology of Jesus or in synchronizing the episodes of his life, and as in John 21:25, the Gospels do not claim to be an exhaustive list of his works.
Christologies that can be gleaned from the three Synoptic Gospels generally emphasize the humanity of Jesus, his sayings, his parables, and his miracles. The Gospel of John provides a different perspective that focuses on his divinity. The first 14 verses of the Gospel of John are devoted to the divinity of Jesus as the Logos, usually translated as "Word", along with his pre-existence, and they emphasize the cosmic significance of Christ, e.g.: "All things were made through him, and without him was not any thing made that was made." In the context of these verses, the Word made flesh is identical with the Word who was in the beginning with God, being exegetically equated with Jesus.
Following the Apostolic Age, from the second century onwards, a number of controversies developed about how the human and divine are related within the person of Jesus. As of the second century, a number of different and opposing approaches developed among various groups. In contrast to prevailing monoprosopic views on the Person of Christ, alternative dyoprosopic notions were also promoted by some theologians, but such views were rejected by the ecumenical councils. For example, Arianism did not endorse divinity, Ebionism argued Jesus was an ordinary mortal, while Gnosticism held docetic views which argued Christ was a spiritual being who only appeared to have a physical body. The resulting tensions led to schisms within the church in the second and third centuries, and ecumenical councils were convened in the fourth and fifth centuries to deal with the issues.
Although some of the debates may seem to various modern students to be over a theological iota, they took place in controversial political circumstances, reflecting the relations of temporal powers and divine authority, and certainly resulted in schisms, among others that separated the Church of the East from the Church of the Roman Empire.
In 325, the First Council of Nicaea defined the persons of the Godhead and their relationship with one another, decisions which were ratified at the First Council of Constantinople in 381. The language used was that the one God exists in three persons (Father, Son, and Holy Spirit); in particular, it was affirmed that the Son was homoousios (of the same being) as the Father. The Nicene Creed declared the full divinity and full humanity of Jesus. After the First Council of Nicaea in 325 the Logos and the second Person of the Trinity were being used interchangeably.
In 431, the First Council of Ephesus was initially called to address the views of Nestorius on Mariology, but the problems soon extended to Christology, and schisms followed. The 431 council was called because in defense of his loyal priest Anastasius, Nestorius had denied the Theotokos title for Mary and later contradicted Proclus during a sermon in Constantinople. Pope Celestine I (who was already upset with Nestorius due to other matters) wrote about this to Cyril of Alexandria, who orchestrated the council. During the council, Nestorius defended his position by arguing there must be two persons of Christ, one human, the other divine, and Mary had given birth only to a human, hence could not be called the Theotokos, i.e. "the one who gives birth to God". The debate about the single or dual nature of Christ ensued in Ephesus.
The First Council of Ephesus debated miaphysitism (two natures united as one after the hypostatic union) versus dyophysitism (coexisting natures after the hypostatic union) versus monophysitism (only one nature) versus Nestorianism (two hypostases). From the Christological viewpoint, the council adopted Mia Physis ('but being made one', κατὰ φύσιν) – Council of Ephesus, Epistle of Cyril to Nestorius, i.e. 'one nature of the Word of God incarnate' (μία φύσις τοῦ θεοῦ λόγου σεσαρκωμένη, mía phýsis toû theoû lógou sesarkōménē). In 451, the Council of Chalcedon affirmed dyophysitism. The Oriental Orthodox rejected this and subsequent councils and continued to consider themselves as miaphysite according to the faith put forth at the Councils of Nicaea and Ephesus. The council also confirmed the Theotokos title and excommunicated Nestorius.
The 451 Council of Chalcedon was highly influential, and marked a key turning point in the christological debates. It is the last council which many Lutherans, Anglicans and other Protestants consider ecumenical.
The Council of Chalcedon fully promulgated the Western dyophysite understanding put forth by Pope Leo I of Rome of the hypostatic union, the proposition that Christ has one human nature (physis) and one divine nature (physis), each distinct and complete, and united with neither confusion nor division. Most of the major branches of Western Christianity (Roman Catholicism, Anglicanism, Lutheranism, and Reformed), Church of the East, Eastern Catholicism and Eastern Orthodoxy subscribe to the Chalcedonian Christological formulation, while many branches of Oriental Orthodox Churches (Syrian Orthodoxy, Coptic Orthodoxy, Ethiopian Orthodoxy, and Armenian Apostolicism) reject it.
Although the Chalcedonian Creed did not put an end to all christological debate, it did clarify the terms used and became a point of reference for many future Christologies. But it also broke apart the church of the Eastern Roman Empire in the fifth century, and unquestionably established the primacy of Rome in the East over those who accepted the Council of Chalcedon. This was reaffirmed in 519, when the Eastern Chalcedonians accepted the Formula of Hormisdas, anathematizing all of their own Eastern Chalcedonian hierarchy, who died out of communion with Rome from 482 to 519.
The Second Council of Constantinople in 553 interpreted the decrees of Chalcedon, and further explained the relationship of the two natures of Jesus. It also condemned the alleged teachings of Origen on the pre-existence of the soul, and other topics.
The Third Council of Constantinople in 681 declared that Christ has two wills of his two natures, human and divine, contrary to the teachings of the Monothelites, with the divine will having precedence, leading and guiding the human will.
The Second Council of Nicaea was called under the Empress Regent Irene of Athens in 787, known as the second of Nicaea. It supports the veneration of icons while forbidding their worship. It is often referred to as "The Triumph of Orthodoxy".
The Franciscan piety of the 12th and 13th centuries led to "popular Christology". Systematic approaches by theologians, such as Thomas Aquinas, are called "scholastic Christology".
In the 13th century, Thomas Aquinas provided the first systematic Christology that consistently resolved a number of the existing issues. In his Christology from above, Aquinas also championed the principle of perfection of Christ's human attributes.
The Middle Ages also witnessed the emergence of the "tender image of Jesus" as a friend and a living source of love and comfort, rather than just the Kyrios image.
John Calvin maintained there was no human element in the Person of Christ which could be separated from the Person of The Word. Calvin also emphasized the importance of the "Work of Christ" in any attempt at understanding the Person of Christ and cautioned against ignoring the Works of Jesus during his ministry.
The 19th century saw the rise of Liberal Protestant theology, which questioned the dogmatic foundations of Christianity, and approached the Bible with critical-historical tools. The divinity of Jesus was problematized, and replaced with an emphasis on the ethical aspects of his teachings.
Catholic theologian Karl Rahner sees the purpose of modern Christology as to formulate the Christian belief that "God became man and that God-made-man is the individual Jesus Christ" in a manner that this statement can be understood consistently, without the confusions of past debates and mythologies. Rahner pointed out the coincidence between the Person of Christ and the Word of God, referring to Mark 8:38 and Luke 9:26 which state whoever is ashamed of the words of Jesus is ashamed of the Lord himself.
Hans von Balthasar argued the union of the human and divine natures of Christ was achieved not by the "absorption" of human attributes, but by their "assumption". Thus, in his view, the divine nature of Christ was not affected by the human attributes and remained forever divine.
The Nativity of Jesus impacted the Christological issues about his person from the earliest days of Christianity. Luke's Christology centers on the dialectics of the dual natures of the earthly and heavenly manifestations of existence of the Christ, while Matthew's Christology focuses on the mission of Jesus and his role as the savior. The salvific emphasis of Matthew 1:21 later impacted the theological issues and the devotions to Holy Name of Jesus.
Matthew 1:23 provides a key to the "Emmanuel Christology" of Matthew. Beginning with 1:23, the Gospel of Matthew shows a clear interest in identifying Jesus as "God with us" and in later developing the Emmanuel characterization of Jesus at key points throughout the rest of the Gospel. The name 'Emmanuel' does not appear elsewhere in the New Testament, but Matthew builds on it in Matthew 28:20 ("I am with you always, even unto the end of the world") to indicate Jesus will be with the faithful to the end of the age. According to Ulrich Luz, the Emmanuel motif brackets the entire Gospel of Matthew between 1:23 and 28:20, appearing explicitly and implicitly in several other passages.
The accounts of the crucifixion and subsequent resurrection of Jesus provides a rich background for christological analysis, from the canonical Gospels to the Pauline Epistles.
A central element in the christology presented in the Acts of the Apostles is the affirmation of the belief that the death of Jesus by crucifixion happened "with the foreknowledge of God, according to a definite plan". In this view, as in Acts 2:23, the cross is not viewed as a scandal, for the crucifixion of Jesus "at the hands of the lawless" is viewed as the fulfilment of the plan of God.
Paul's Christology has a specific focus on the death and resurrection of Jesus. For Paul, the crucifixion of Jesus is directly related to his resurrection and the term "the cross of Christ" used in Galatians 6:12 may be viewed as his abbreviation of the message of the Gospels. For Paul, the crucifixion of Jesus was not an isolated event in history, but a cosmic event with significant eschatological consequences, as in 1 Corinthians 2:8. In the Pauline view, Jesus, obedient to the point of death (Philippians 2:8), died "at the right time" (Romans 5:6) based on the plan of God. For Paul, the "power of the cross" is not separable from the resurrection of Jesus.
The threefold office (Latin munus triplex) of Jesus Christ is a Christian doctrine based upon the teachings of the Old Testament. It was described by Eusebius and more fully developed by John Calvin. It states that Jesus Christ performed three functions (or "offices") in his earthly ministry – those of prophet, priest, and king. In the Old Testament, the appointment of someone to any of these three positions could be indicated by anointing him or her by pouring oil over the head. Thus, the term messiah, meaning "anointed one", is associated with the concept of the threefold office. While the office of king is that most frequently associated with the Messiah, the role of Jesus as priest is also prominent in the New Testament, being most fully explained in chapters 7 to 10 of the Book of Hebrews.
Some Christians, notably Roman Catholics, view Mariology as a key component of Christology. In this view, not only is Mariology a logical and necessary consequence of Christology, but without it, Christology is incomplete, since the figure of Mary contributes to a fuller understanding of who Christ is and what he did.
Protestants have criticized Mariology because many of its assertions lack any Biblical foundation. Strong Protestant reaction against Roman Catholic Marian devotion and teaching has been a significant issue for ecumenical dialogue.
Joseph Cardinal Ratzinger (later Pope Benedict XVI) expressed this sentiment about Roman Catholic Mariology when in two separate occasions he stated, "The appearance of a truly Marian awareness serves as the touchstone indicating whether or not the christological substance is fully present" and "It is necessary to go back to Mary, if we want to return to the truth about Jesus Christ." | [
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"text": "In Christianity, Christology (from the Greek Χριστός, Khristós and -λογία, -logia), translated from Greek as 'the study of Christ', is a branch of theology that concerns Jesus. Different denominations have different opinions on questions such as whether Jesus was human, divine, or both, and as a messiah what his role would be in the freeing of the Jewish people from foreign rulers or in the prophesied Kingdom of God, and in the salvation from what would otherwise be the consequences of sin.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The earliest Christian writings gave several titles to Jesus, such as Son of Man, Son of God, Messiah, and Kyrios, which were all derived from Hebrew scripture. These terms centered around two opposing themes, namely \"Jesus as a preexistent figure who becomes human and then returns to God\", versus adoptionism – that Jesus was human who was \"adopted\" by God at his baptism, crucifixion, or resurrection.",
"title": ""
},
{
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"text": "From the second to the fifth centuries, the relation of the human and divine nature of Christ was a major focus of debates in the early church and at the first seven ecumenical councils. The Council of Chalcedon in 451 issued a formulation of the hypostatic union of the two natures of Christ, one human and one divine, \"united with neither confusion nor division\". Most of the major branches of Western Christianity and Eastern Orthodoxy subscribe to this formulation, while many branches of Oriental Orthodox Churches reject it, subscribing to miaphysitism.",
"title": ""
},
{
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"text": "Christology (from the Greek Χριστός, Khristós and -λογία, -logia), literally 'the understanding of Christ', is the study of the nature (person) and work (role in salvation) of Jesus Christ. It studies Jesus Christ's humanity and divinity, and the relation between these two aspects; and the role he plays in salvation.",
"title": "Definition and approaches"
},
{
"paragraph_id": 4,
"text": "\"Ontological Christology\" analyzes the nature or being of Jesus Christ. \"Functional Christology\" analyzes the works of Jesus Christ, while \"soteriological Christology\" analyzes the \"salvific\" standpoints of Christology.",
"title": "Definition and approaches"
},
{
"paragraph_id": 5,
"text": "Several approaches can be distinguished within Christology. The term Christology from above or high Christology refers to approaches that include aspects of divinity, such as Lord and Son of God, and the idea of the pre-existence of Christ as the Logos ('the Word'), as expressed in the prologue to the Gospel of John. These approaches interpret the works of Christ in terms of his divinity. According to Pannenberg, Christology from above \"was far more common in the ancient Church, beginning with Ignatius of Antioch and the second century Apologists.\" The term Christology from below or low Christology refers to approaches that begin with the human aspects and the ministry of Jesus (including the miracles, parables, etc.) and move towards his divinity and the mystery of incarnation.",
"title": "Definition and approaches"
},
{
"paragraph_id": 6,
"text": "A basic Christological teaching is that the person of Jesus Christ is both human and divine. The human and divine natures of Jesus Christ apparently (prosopic) form a duality, as they coexist within one person (hypostasis). There are no direct discussions in the New Testament regarding the dual nature of the Person of Christ as both divine and human, and since the early days of Christianity, theologians have debated various approaches to the understanding of these natures, at times resulting in ecumenical councils, and schisms.",
"title": "Definition and approaches"
},
{
"paragraph_id": 7,
"text": "Some historical christological doctrines gained broad support:",
"title": "Definition and approaches"
},
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"paragraph_id": 8,
"text": "Influential Christologies which were broadly condemned as heretical are:",
"title": "Definition and approaches"
},
{
"paragraph_id": 9,
"text": "Various church councils, mainly in the 4th and 5th centuries, resolved most of these controversies, making the doctrine of the Trinity orthodox in nearly all branches of Christianity. Among them, only the Dyophysite doctrine was recognized as true and not heretical, belonging to the Christian orthodoxy and deposit of faith.",
"title": "Definition and approaches"
},
{
"paragraph_id": 10,
"text": "In Christian theology, atonement is the method by which human beings can be reconciled to God through Christ's sacrificial suffering and death. Atonement is the forgiving or pardoning of sin in general and original sin in particular through the suffering, death and resurrection of Jesus, enabling the reconciliation between God and his creation. Due to the influence of Gustaf Aulèn's (1879–1978) Christus Victor (1931), the various theories or paradigmata of atonement are often grouped as \"classical paradigm\", \"objective paradigm\", and the \"subjective paradigm\":",
"title": "Definition and approaches"
},
{
"paragraph_id": 11,
"text": "Other theories are the \"embracement theory\" and the \"shared atonement\" theory.",
"title": "Definition and approaches"
},
{
"paragraph_id": 12,
"text": "The earliest christological reflections were shaped by both the Jewish background of the earliest Christians, and by the Greek world of the eastern Mediterranean in which they operated. The earliest Christian writings give several titles to Jesus, such as Son of Man, Son of God, Messiah, and Kyrios, which were all derived from Hebrew scripture. According to Matt Stefon and Hans J. Hillerbrand:",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 13,
"text": "Until the middle of the 2nd century, such terms emphasized two themes: that of Jesus as a preexistent figure who becomes human and then returns to God and that of Jesus as a creature elected and \"adopted\" by God. The first theme makes use of concepts drawn from Classical antiquity, whereas the second relies on concepts characteristic of ancient Jewish thought. The second theme subsequently became the basis of \"adoptionist Christology\" (see adoptionism), which viewed Jesus' baptism as a crucial event in his adoption by God.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 14,
"text": "Historically in the Alexandrian school of thought (fashioned on the Gospel of John), Jesus Christ is the eternal Logos who already possesses unity with the Father before the act of Incarnation. In contrast, the Antiochian school viewed Christ as a single, unified human person apart from his relationship to the divine.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 15,
"text": "The notion of pre-existence is deeply rooted in Jewish thought, and can be found in apocalyptic thought and among the rabbis of Paul's time, but Paul was most influenced by Jewish-Hellenistic wisdom literature, where \"'Wisdom' is extolled as something existing before the world and already working in creation. According to Witherington, Paul \"subscribed to the christological notion that Christ existed prior to taking on human flesh[,] founding the story of Christ [...] on the story of divine Wisdom\".",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 16,
"text": "The title Kyrios for Jesus is central to the development of New Testament Christology. In the Septuagint it translates the Tetragrammaton, the holy Name of God. As such, it closely links Jesus with God – in the same way a verse such as Matthew 28:19, \"The Name (singular) of the Father, the Son, and the Holy Spirit\".",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 17,
"text": "Kyrios is also conjectured to be the Greek translation of Aramaic Mari, which in everyday Aramaic usage was a very respectful form of polite address, which means more than just 'teacher' and was somewhat similar to 'rabbi'. While the term Mari expressed the relationship between Jesus and his disciples during his life, the Greek Kyrios came to represent his lordship over the world.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 18,
"text": "The early Christians placed Kyrios at the center of their understanding, and from that center attempted to understand the other issues related to the Christian mysteries. The question of the deity of Christ in the New Testament is inherently related to the Kyrios title of Jesus used in the early Christian writings and its implications for the absolute lordship of Jesus. In early Christian belief, the concept of Kyrios included the pre-existence of Christ, for they believed if Christ is one with God, he must have been united with God from the very beginning.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 19,
"text": "Two fundamentally different Christologies developed in the early Church, namely a \"low\" or adoptionist Christology, and a \"high\" or \"incarnation\" Christology. The chronology of the development of these early Christologies is a matter of debate within contemporary scholarship.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 20,
"text": "The \"low Christology\" or \"adoptionist Christology\" is the belief \"that God exalted Jesus to be his Son by raising him from the dead\", thereby raising him to \"divine status\". According to the \"evolutionary model\" or evolutionary theories, the Christological understanding of Jesus developed over time, as witnessed in the Gospels, with the earliest Christians believing that Jesus was a human who was exalted, or else adopted as God's Son, when he was resurrected. Later beliefs shifted the exaltation to his baptism, birth, and subsequently to the idea of his pre-existence, as witnessed in the Gospel of John. This \"evolutionary model\" was proposed by proponents of the Religionsgeschichtliche Schule, especially Wilhelm Bousset's influential Kyrios Christos (1913). This evolutionary model was very influential, and the \"low Christology\" has long been regarded as the oldest Christology.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 21,
"text": "The other early Christology is \"high Christology\", which is \"the view that Jesus was a pre-existent divine being who became a human, did the Father's will on earth, and then was taken back up into heaven whence he had originally come\", and from where he appeared on earth. According to Bousset, this \"high Christology\" developed at the time of Paul's writing, under the influence of Gentile Christians, who brought their pagan Hellenistic traditions to the early Christian communities, introducing divine honours to Jesus. According to Casey and Dunn, this \"high Christology\" developed after the time of Paul, at the end of the first century CE when the Gospel of John was written.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 22,
"text": "Since the 1970s, these late datings for the development of a \"high Christology\" have been contested, and a majority of scholars argue that this \"high Christology\" existed already before the writings of Paul. According to the \"New Religionsgeschichtliche Schule\", or the Early High Christology Club, which includes Martin Hengel, Larry Hurtado, N. T. Wright, and Richard Bauckham, this \"incarnation Christology\" or \"high Christology\" did not evolve over a longer time, but was a \"big bang\" of ideas which were already present at the start of Christianity, and took further shape in the first few decades of the church, as witnessed in the writings of Paul. Some 'Early High Christology' proponents scholars argue that this \"high Christology\" may go back to Jesus himself.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 23,
"text": "There is a controversy regarding whether Jesus himself claimed to be divine. In Honest to God, then-Bishop of Woolwich, John A. T. Robinson, questioned the idea. John Hick, writing in 1993, mentioned changes in New Testament studies, citing \"broad agreement\" that scholars do not today support the view that Jesus claimed to be God, quoting as examples Michael Ramsey (1980), C. F. D. Moule (1977), James Dunn (1980), Brian Hebblethwaite (1985) and David Brown (1985). Larry Hurtado, who argues that the followers of Jesus within a very short period developed an exceedingly high level of devotional reverence to Jesus, at the same time rejects the view that Jesus made a claim to messiahship or divinity to his disciples during his life as \"naive and ahistorical\". According to Gerd Lüdemann, the broad consensus among modern New Testament scholars is that the proclamation of the divinity of Jesus was a development within the earliest Christian communities. N. T. Wright points out that arguments over the claims of Jesus regarding divinity have been passed over by more recent scholarship, which sees a more complex understanding of the idea of God in first century Judaism. However, Andrew Loke argues that if Jesus did not claim and show himself to be truly divine and rise from the dead, the earliest Christian leaders who were devout ancient monotheistic Jews would have regarded Jesus as merely a teacher or a prophet; they would not have come to the widespread agreement that he was truly divine, which they did.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 24,
"text": "The study of the various Christologies of the Apostolic Age is based on early Christian documents.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 25,
"text": "The oldest Christian sources are the writings of Paul. The central Christology of Paul conveys the notion of Christ's pre-existence and the identification of Christ as Kyrios. Both notions already existed before him in the early Christian communities, and Paul deepened them and used them for preaching in the Hellenistic communities.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 26,
"text": "What exactly Paul believed about the nature of Jesus cannot be determined decisively. In Philippians 2, Paul states that Jesus was preexistent and came to Earth \"by taking the form of a servant, being made in human likeness\". This sounds like an incarnation Christology. In Romans 1:4, however, Paul states that Jesus \"was declared with power to be the Son of God by his resurrection from the dead\", which sounds like an adoptionistic Christology, where Jesus was a human being who was \"adopted\" after his death. Different views would be debated for centuries by Christians and finally settled on the idea that he was both fully human and fully divine by the middle of the 5th century in the Council of Ephesus. Paul's thoughts on Jesus' teachings, versus his nature and being, are more defined, in that Paul believed Jesus was sent as an atonement for the sins of everyone.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 27,
"text": "The Pauline epistles use Kyrios to identify Jesus almost 230 times, and express the theme that the true mark of a Christian is the confession of Jesus as the true Lord. Paul viewed the superiority of the Christian revelation over all other divine manifestations as a consequence of the fact that Christ is the Son of God.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 28,
"text": "The Pauline epistles also advanced the \"cosmic Christology\" later developed in the Gospel of John, elaborating the cosmic implications of Jesus' existence as the Son of God: \"Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come.\" Paul writes that Christ came to draw all back to God: \"Through him God was pleased to reconcile to himself all things, whether on earth or in heaven\" (Colossians 1:20); in the same epistle, he writes that \"He is the image of the invisible God, the firstborn of all creation\" (Colossians 1:15).",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 29,
"text": "The synoptic Gospels date from after the writings of Paul. They provide episodes from the life of Jesus and some of his works, but the authors of the New Testament show little interest in an absolute chronology of Jesus or in synchronizing the episodes of his life, and as in John 21:25, the Gospels do not claim to be an exhaustive list of his works.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 30,
"text": "Christologies that can be gleaned from the three Synoptic Gospels generally emphasize the humanity of Jesus, his sayings, his parables, and his miracles. The Gospel of John provides a different perspective that focuses on his divinity. The first 14 verses of the Gospel of John are devoted to the divinity of Jesus as the Logos, usually translated as \"Word\", along with his pre-existence, and they emphasize the cosmic significance of Christ, e.g.: \"All things were made through him, and without him was not any thing made that was made.\" In the context of these verses, the Word made flesh is identical with the Word who was in the beginning with God, being exegetically equated with Jesus.",
"title": "Early Christologies (1st century)"
},
{
"paragraph_id": 31,
"text": "Following the Apostolic Age, from the second century onwards, a number of controversies developed about how the human and divine are related within the person of Jesus. As of the second century, a number of different and opposing approaches developed among various groups. In contrast to prevailing monoprosopic views on the Person of Christ, alternative dyoprosopic notions were also promoted by some theologians, but such views were rejected by the ecumenical councils. For example, Arianism did not endorse divinity, Ebionism argued Jesus was an ordinary mortal, while Gnosticism held docetic views which argued Christ was a spiritual being who only appeared to have a physical body. The resulting tensions led to schisms within the church in the second and third centuries, and ecumenical councils were convened in the fourth and fifth centuries to deal with the issues.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 32,
"text": "Although some of the debates may seem to various modern students to be over a theological iota, they took place in controversial political circumstances, reflecting the relations of temporal powers and divine authority, and certainly resulted in schisms, among others that separated the Church of the East from the Church of the Roman Empire.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 33,
"text": "In 325, the First Council of Nicaea defined the persons of the Godhead and their relationship with one another, decisions which were ratified at the First Council of Constantinople in 381. The language used was that the one God exists in three persons (Father, Son, and Holy Spirit); in particular, it was affirmed that the Son was homoousios (of the same being) as the Father. The Nicene Creed declared the full divinity and full humanity of Jesus. After the First Council of Nicaea in 325 the Logos and the second Person of the Trinity were being used interchangeably.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 34,
"text": "In 431, the First Council of Ephesus was initially called to address the views of Nestorius on Mariology, but the problems soon extended to Christology, and schisms followed. The 431 council was called because in defense of his loyal priest Anastasius, Nestorius had denied the Theotokos title for Mary and later contradicted Proclus during a sermon in Constantinople. Pope Celestine I (who was already upset with Nestorius due to other matters) wrote about this to Cyril of Alexandria, who orchestrated the council. During the council, Nestorius defended his position by arguing there must be two persons of Christ, one human, the other divine, and Mary had given birth only to a human, hence could not be called the Theotokos, i.e. \"the one who gives birth to God\". The debate about the single or dual nature of Christ ensued in Ephesus.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 35,
"text": "The First Council of Ephesus debated miaphysitism (two natures united as one after the hypostatic union) versus dyophysitism (coexisting natures after the hypostatic union) versus monophysitism (only one nature) versus Nestorianism (two hypostases). From the Christological viewpoint, the council adopted Mia Physis ('but being made one', κατὰ φύσιν) – Council of Ephesus, Epistle of Cyril to Nestorius, i.e. 'one nature of the Word of God incarnate' (μία φύσις τοῦ θεοῦ λόγου σεσαρκωμένη, mía phýsis toû theoû lógou sesarkōménē). In 451, the Council of Chalcedon affirmed dyophysitism. The Oriental Orthodox rejected this and subsequent councils and continued to consider themselves as miaphysite according to the faith put forth at the Councils of Nicaea and Ephesus. The council also confirmed the Theotokos title and excommunicated Nestorius.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 36,
"text": "The 451 Council of Chalcedon was highly influential, and marked a key turning point in the christological debates. It is the last council which many Lutherans, Anglicans and other Protestants consider ecumenical.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 37,
"text": "The Council of Chalcedon fully promulgated the Western dyophysite understanding put forth by Pope Leo I of Rome of the hypostatic union, the proposition that Christ has one human nature (physis) and one divine nature (physis), each distinct and complete, and united with neither confusion nor division. Most of the major branches of Western Christianity (Roman Catholicism, Anglicanism, Lutheranism, and Reformed), Church of the East, Eastern Catholicism and Eastern Orthodoxy subscribe to the Chalcedonian Christological formulation, while many branches of Oriental Orthodox Churches (Syrian Orthodoxy, Coptic Orthodoxy, Ethiopian Orthodoxy, and Armenian Apostolicism) reject it.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 38,
"text": "Although the Chalcedonian Creed did not put an end to all christological debate, it did clarify the terms used and became a point of reference for many future Christologies. But it also broke apart the church of the Eastern Roman Empire in the fifth century, and unquestionably established the primacy of Rome in the East over those who accepted the Council of Chalcedon. This was reaffirmed in 519, when the Eastern Chalcedonians accepted the Formula of Hormisdas, anathematizing all of their own Eastern Chalcedonian hierarchy, who died out of communion with Rome from 482 to 519.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 39,
"text": "The Second Council of Constantinople in 553 interpreted the decrees of Chalcedon, and further explained the relationship of the two natures of Jesus. It also condemned the alleged teachings of Origen on the pre-existence of the soul, and other topics.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 40,
"text": "The Third Council of Constantinople in 681 declared that Christ has two wills of his two natures, human and divine, contrary to the teachings of the Monothelites, with the divine will having precedence, leading and guiding the human will.",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 41,
"text": "The Second Council of Nicaea was called under the Empress Regent Irene of Athens in 787, known as the second of Nicaea. It supports the veneration of icons while forbidding their worship. It is often referred to as \"The Triumph of Orthodoxy\".",
"title": "Controversies and ecumenical councils (2nd–8th century)"
},
{
"paragraph_id": 42,
"text": "The Franciscan piety of the 12th and 13th centuries led to \"popular Christology\". Systematic approaches by theologians, such as Thomas Aquinas, are called \"scholastic Christology\".",
"title": "Western medieval Christology"
},
{
"paragraph_id": 43,
"text": "In the 13th century, Thomas Aquinas provided the first systematic Christology that consistently resolved a number of the existing issues. In his Christology from above, Aquinas also championed the principle of perfection of Christ's human attributes.",
"title": "Western medieval Christology"
},
{
"paragraph_id": 44,
"text": "The Middle Ages also witnessed the emergence of the \"tender image of Jesus\" as a friend and a living source of love and comfort, rather than just the Kyrios image.",
"title": "Western medieval Christology"
},
{
"paragraph_id": 45,
"text": "John Calvin maintained there was no human element in the Person of Christ which could be separated from the Person of The Word. Calvin also emphasized the importance of the \"Work of Christ\" in any attempt at understanding the Person of Christ and cautioned against ignoring the Works of Jesus during his ministry.",
"title": "Reformation"
},
{
"paragraph_id": 46,
"text": "The 19th century saw the rise of Liberal Protestant theology, which questioned the dogmatic foundations of Christianity, and approached the Bible with critical-historical tools. The divinity of Jesus was problematized, and replaced with an emphasis on the ethical aspects of his teachings.",
"title": "Modern developments"
},
{
"paragraph_id": 47,
"text": "Catholic theologian Karl Rahner sees the purpose of modern Christology as to formulate the Christian belief that \"God became man and that God-made-man is the individual Jesus Christ\" in a manner that this statement can be understood consistently, without the confusions of past debates and mythologies. Rahner pointed out the coincidence between the Person of Christ and the Word of God, referring to Mark 8:38 and Luke 9:26 which state whoever is ashamed of the words of Jesus is ashamed of the Lord himself.",
"title": "Modern developments"
},
{
"paragraph_id": 48,
"text": "Hans von Balthasar argued the union of the human and divine natures of Christ was achieved not by the \"absorption\" of human attributes, but by their \"assumption\". Thus, in his view, the divine nature of Christ was not affected by the human attributes and remained forever divine.",
"title": "Modern developments"
},
{
"paragraph_id": 49,
"text": "The Nativity of Jesus impacted the Christological issues about his person from the earliest days of Christianity. Luke's Christology centers on the dialectics of the dual natures of the earthly and heavenly manifestations of existence of the Christ, while Matthew's Christology focuses on the mission of Jesus and his role as the savior. The salvific emphasis of Matthew 1:21 later impacted the theological issues and the devotions to Holy Name of Jesus.",
"title": "Topics"
},
{
"paragraph_id": 50,
"text": "Matthew 1:23 provides a key to the \"Emmanuel Christology\" of Matthew. Beginning with 1:23, the Gospel of Matthew shows a clear interest in identifying Jesus as \"God with us\" and in later developing the Emmanuel characterization of Jesus at key points throughout the rest of the Gospel. The name 'Emmanuel' does not appear elsewhere in the New Testament, but Matthew builds on it in Matthew 28:20 (\"I am with you always, even unto the end of the world\") to indicate Jesus will be with the faithful to the end of the age. According to Ulrich Luz, the Emmanuel motif brackets the entire Gospel of Matthew between 1:23 and 28:20, appearing explicitly and implicitly in several other passages.",
"title": "Topics"
},
{
"paragraph_id": 51,
"text": "The accounts of the crucifixion and subsequent resurrection of Jesus provides a rich background for christological analysis, from the canonical Gospels to the Pauline Epistles.",
"title": "Topics"
},
{
"paragraph_id": 52,
"text": "A central element in the christology presented in the Acts of the Apostles is the affirmation of the belief that the death of Jesus by crucifixion happened \"with the foreknowledge of God, according to a definite plan\". In this view, as in Acts 2:23, the cross is not viewed as a scandal, for the crucifixion of Jesus \"at the hands of the lawless\" is viewed as the fulfilment of the plan of God.",
"title": "Topics"
},
{
"paragraph_id": 53,
"text": "Paul's Christology has a specific focus on the death and resurrection of Jesus. For Paul, the crucifixion of Jesus is directly related to his resurrection and the term \"the cross of Christ\" used in Galatians 6:12 may be viewed as his abbreviation of the message of the Gospels. For Paul, the crucifixion of Jesus was not an isolated event in history, but a cosmic event with significant eschatological consequences, as in 1 Corinthians 2:8. In the Pauline view, Jesus, obedient to the point of death (Philippians 2:8), died \"at the right time\" (Romans 5:6) based on the plan of God. For Paul, the \"power of the cross\" is not separable from the resurrection of Jesus.",
"title": "Topics"
},
{
"paragraph_id": 54,
"text": "The threefold office (Latin munus triplex) of Jesus Christ is a Christian doctrine based upon the teachings of the Old Testament. It was described by Eusebius and more fully developed by John Calvin. It states that Jesus Christ performed three functions (or \"offices\") in his earthly ministry – those of prophet, priest, and king. In the Old Testament, the appointment of someone to any of these three positions could be indicated by anointing him or her by pouring oil over the head. Thus, the term messiah, meaning \"anointed one\", is associated with the concept of the threefold office. While the office of king is that most frequently associated with the Messiah, the role of Jesus as priest is also prominent in the New Testament, being most fully explained in chapters 7 to 10 of the Book of Hebrews.",
"title": "Topics"
},
{
"paragraph_id": 55,
"text": "Some Christians, notably Roman Catholics, view Mariology as a key component of Christology. In this view, not only is Mariology a logical and necessary consequence of Christology, but without it, Christology is incomplete, since the figure of Mary contributes to a fuller understanding of who Christ is and what he did.",
"title": "Topics"
},
{
"paragraph_id": 56,
"text": "Protestants have criticized Mariology because many of its assertions lack any Biblical foundation. Strong Protestant reaction against Roman Catholic Marian devotion and teaching has been a significant issue for ecumenical dialogue.",
"title": "Topics"
},
{
"paragraph_id": 57,
"text": "Joseph Cardinal Ratzinger (later Pope Benedict XVI) expressed this sentiment about Roman Catholic Mariology when in two separate occasions he stated, \"The appearance of a truly Marian awareness serves as the touchstone indicating whether or not the christological substance is fully present\" and \"It is necessary to go back to Mary, if we want to return to the truth about Jesus Christ.\"",
"title": "Topics"
}
] | In Christianity, Christology, translated from Greek as 'the study of Christ', is a branch of theology that concerns Jesus. Different denominations have different opinions on questions such as whether Jesus was human, divine, or both, and as a messiah what his role would be in the freeing of the Jewish people from foreign rulers or in the prophesied Kingdom of God, and in the salvation from what would otherwise be the consequences of sin. The earliest Christian writings gave several titles to Jesus, such as Son of Man, Son of God, Messiah, and Kyrios, which were all derived from Hebrew scripture. These terms centered around two opposing themes, namely "Jesus as a preexistent figure who becomes human and then returns to God", versus adoptionism – that Jesus was human who was "adopted" by God at his baptism, crucifixion, or resurrection. From the second to the fifth centuries, the relation of the human and divine nature of Christ was a major focus of debates in the early church and at the first seven ecumenical councils. The Council of Chalcedon in 451 issued a formulation of the hypostatic union of the two natures of Christ, one human and one divine, "united with neither confusion nor division". Most of the major branches of Western Christianity and Eastern Orthodoxy subscribe to this formulation, while many branches of Oriental Orthodox Churches reject it, subscribing to miaphysitism. | 2001-12-06T01:56:30Z | 2023-12-22T20:56:23Z | [
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] | https://en.wikipedia.org/wiki/Christology |
7,357 | Complaint | In legal terminology, a complaint is any formal legal document that sets out the facts and legal reasons (see: cause of action) that the filing party or parties (the plaintiff(s)) believes are sufficient to support a claim against the party or parties against whom the claim is brought (the defendant(s)) that entitles the plaintiff(s) to a remedy (either money damages or injunctive relief). For example, the Federal Rules of Civil Procedure (FRCP) that govern civil litigation in United States courts provide that a civil action is commenced with the filing or service of a pleading called a complaint. Civil court rules in states that have incorporated the Federal Rules of Civil Procedure use the same term for the same pleading.
In Civil Law, a "complaint" is the first formal action taken to officially begin a lawsuit. This written document contains the allegations against the defense, the specific laws violated, the facts that led to the dispute, and any demands made by the plaintiff to restore justice.
In some jurisdictions, specific types of criminal cases may also be commenced by the filing of a complaint, also sometimes called a criminal complaint or felony complaint. Most criminal cases are prosecuted in the name of the governmental authority that promulgates criminal statutes and enforces the police power of the state with the goal of seeking criminal sanctions, such as the State (also sometimes called the People) or Crown (in Commonwealth realms). In the United States, the complaint is often associated with misdemeanor criminal charges presented by the prosecutor without the grand jury process. In most U.S. jurisdictions, the charging instrument presented to and authorized by a grand jury is referred to as an indictment.
Virtually every U.S. state has some forms available on the web for most common complaints for lawyers and self-representing litigants; if a petitioner cannot find an appropriate form in their state, they often can modify a form from another state to fit his or her request. Several United States federal courts publish general guidelines for the petitioners and Civil Rights complaint forms.
A complaint generally has the following structural elements:
After the complaint has been filed with the court, it has to be properly served to the opposite parties, but usually petitioners are not allowed to serve the complaint personally. The court also can issue a summons – an official summary document which the plaintiff needs to have served together with the complaint. The defendants have limited time to respond, depending on the State or Federal rules. A defendant's failure to answer a complaint can result in a default judgment in favor of the petitioner.
For example, in United States federal courts, any person who is at least 18 years old and not a party may serve a summons and complaint in a civil case. The defendant must submit an answer within 21 days after being served with the summons and complaint, or request a waiver, according to FRCP Rule 12. After the civil complaint has been served to the defendants, the plaintiff must, as soon as practicable initiate a conference between the parties to plan for the rest of the discovery process and then the parties should submit a proposed discovery plan to the judge within 14 days after the conference.
In many U.S. jurisdictions, a complaint submitted to a court must be accompanied by a Case Information Statement, which sets forth specific key information about the case and the lawyers representing the parties. This allows the judge to make determinations about which deadlines to set for different phases of the case, as it moves through the court system.
There are also freely accessible web search engines to assist parties in finding court decisions that can be cited in the complaint as an example or analogy to resolve similar questions of law. Google Scholar is the biggest database of full text state and federal courts decisions that can be accessed without charge. These web search engines often allow one to select specific state courts to search.
Federal courts created the Public Access to Court Electronic Records (PACER) system to obtain case and docket information from the United States district courts, United States courts of appeals, and United States bankruptcy courts. The system is managed by the Administrative Office of the United States Courts; it allows lawyers and self-represented clients to obtain documents entered in the case much faster than regular mail.
In addition to Federal Rules of Civil Procedure, many of the U.S. district courts have developed their own requirements included in Local Rules for filing with the Court. Local Rules can set up a limit on the number of pages, establish deadlines for motions and responses, explain whether it is acceptable to combine a motion petition with a response, specify if a judge needs an additional copy of the documents (called "judge’s copy"), etc. Local Rules can define page layout elements like: margins, text font/size, distance between lines, mandatory footer text, page numbering, and provide directions on how the pages need to be bound together – i.e. acceptable fasteners, number and location of fastening holes, etc. If the filed motion does not comply with the Local Rules then the judge can choose to strike the motion completely, or order the party to re-file its motion, or grant a special exception to the Local Rules.
According to Federal Rules of Civil Procedure (FRCP) 5.2, sensitive text like Social Security number, Taxpayer Identification Number, birthday, bank accounts and children’s names, should be redacted from the filings made with the court and accompanying exhibits, (exhibits normally do not need to be attached to the original complaint, but should be presented to Court after the discovery). The redacted text can be erased with black-out or white-out, and the page should have an indication that it was redacted - most often by stamping word "redacted" on the bottom. Alternately, the filing party may ask the court’s permission to file some exhibits completely under seal. A minor's name of the petitions should be replaced with initials.
A person making a redacted filing can file an unredacted copy under seal, or the Court can choose to order later that an additional filing be made under seal without redaction. Copies of both redacted and unredacted documents filed with court should be provided to the other parties in the case. Some courts also require that an additional electronic courtesy copy be emailed to the other parties.
Before filing the complaint, it is important for plaintiff(s) to remember that Federal courts can impose liability for the prevailing party's attorney fees to the losing party, if the judge considers the case frivolous or for purposes of harassment, even when the case was voluntarily dismissed. In the case of Fox v. Vice, the U.S. Supreme Court held that reasonable attorneys' fees could be awarded to the defendant under 42 U.S.C. Sec. 1988, but only for costs that the defendant would not have incurred "but for the frivolous claims." Even when there is no actual trial or judgment, if there is only pre-trial motion practice such as motions to dismiss, attorney fee shifting still can be awarded under FRCP Rule 11 when the opposing party files a Motion for Sanctions and the court issue an order identifying the sanctioned conduct and the basis for the sanction. The losing party has a right to appeal any order for sanctions in the higher court. In the state courts, each party is generally responsible only for its own attorney fees, with certain exceptions.
In 1883, the Rules of the Supreme Court replaced the term complaint with statement of claim. This was then replaced in 1998 with particulars of claim by the Civil Procedure Rules, which also replaced the word plaintiff with claimant as part of a drastic reform of English legal terminology. Thus, in England and Wales, a claimant now initiates a claim by filing a claim form (instead of a writ of summons), and either pleads particulars of claim on the claim form itself or as a separate document. | [
{
"paragraph_id": 0,
"text": "In legal terminology, a complaint is any formal legal document that sets out the facts and legal reasons (see: cause of action) that the filing party or parties (the plaintiff(s)) believes are sufficient to support a claim against the party or parties against whom the claim is brought (the defendant(s)) that entitles the plaintiff(s) to a remedy (either money damages or injunctive relief). For example, the Federal Rules of Civil Procedure (FRCP) that govern civil litigation in United States courts provide that a civil action is commenced with the filing or service of a pleading called a complaint. Civil court rules in states that have incorporated the Federal Rules of Civil Procedure use the same term for the same pleading.",
"title": ""
},
{
"paragraph_id": 1,
"text": "In Civil Law, a \"complaint\" is the first formal action taken to officially begin a lawsuit. This written document contains the allegations against the defense, the specific laws violated, the facts that led to the dispute, and any demands made by the plaintiff to restore justice.",
"title": ""
},
{
"paragraph_id": 2,
"text": "In some jurisdictions, specific types of criminal cases may also be commenced by the filing of a complaint, also sometimes called a criminal complaint or felony complaint. Most criminal cases are prosecuted in the name of the governmental authority that promulgates criminal statutes and enforces the police power of the state with the goal of seeking criminal sanctions, such as the State (also sometimes called the People) or Crown (in Commonwealth realms). In the United States, the complaint is often associated with misdemeanor criminal charges presented by the prosecutor without the grand jury process. In most U.S. jurisdictions, the charging instrument presented to and authorized by a grand jury is referred to as an indictment.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Virtually every U.S. state has some forms available on the web for most common complaints for lawyers and self-representing litigants; if a petitioner cannot find an appropriate form in their state, they often can modify a form from another state to fit his or her request. Several United States federal courts publish general guidelines for the petitioners and Civil Rights complaint forms.",
"title": "United States"
},
{
"paragraph_id": 4,
"text": "A complaint generally has the following structural elements:",
"title": "United States"
},
{
"paragraph_id": 5,
"text": "After the complaint has been filed with the court, it has to be properly served to the opposite parties, but usually petitioners are not allowed to serve the complaint personally. The court also can issue a summons – an official summary document which the plaintiff needs to have served together with the complaint. The defendants have limited time to respond, depending on the State or Federal rules. A defendant's failure to answer a complaint can result in a default judgment in favor of the petitioner.",
"title": "United States"
},
{
"paragraph_id": 6,
"text": "For example, in United States federal courts, any person who is at least 18 years old and not a party may serve a summons and complaint in a civil case. The defendant must submit an answer within 21 days after being served with the summons and complaint, or request a waiver, according to FRCP Rule 12. After the civil complaint has been served to the defendants, the plaintiff must, as soon as practicable initiate a conference between the parties to plan for the rest of the discovery process and then the parties should submit a proposed discovery plan to the judge within 14 days after the conference.",
"title": "United States"
},
{
"paragraph_id": 7,
"text": "In many U.S. jurisdictions, a complaint submitted to a court must be accompanied by a Case Information Statement, which sets forth specific key information about the case and the lawyers representing the parties. This allows the judge to make determinations about which deadlines to set for different phases of the case, as it moves through the court system.",
"title": "United States"
},
{
"paragraph_id": 8,
"text": "There are also freely accessible web search engines to assist parties in finding court decisions that can be cited in the complaint as an example or analogy to resolve similar questions of law. Google Scholar is the biggest database of full text state and federal courts decisions that can be accessed without charge. These web search engines often allow one to select specific state courts to search.",
"title": "United States"
},
{
"paragraph_id": 9,
"text": "Federal courts created the Public Access to Court Electronic Records (PACER) system to obtain case and docket information from the United States district courts, United States courts of appeals, and United States bankruptcy courts. The system is managed by the Administrative Office of the United States Courts; it allows lawyers and self-represented clients to obtain documents entered in the case much faster than regular mail.",
"title": "United States"
},
{
"paragraph_id": 10,
"text": "In addition to Federal Rules of Civil Procedure, many of the U.S. district courts have developed their own requirements included in Local Rules for filing with the Court. Local Rules can set up a limit on the number of pages, establish deadlines for motions and responses, explain whether it is acceptable to combine a motion petition with a response, specify if a judge needs an additional copy of the documents (called \"judge’s copy\"), etc. Local Rules can define page layout elements like: margins, text font/size, distance between lines, mandatory footer text, page numbering, and provide directions on how the pages need to be bound together – i.e. acceptable fasteners, number and location of fastening holes, etc. If the filed motion does not comply with the Local Rules then the judge can choose to strike the motion completely, or order the party to re-file its motion, or grant a special exception to the Local Rules.",
"title": "United States"
},
{
"paragraph_id": 11,
"text": "According to Federal Rules of Civil Procedure (FRCP) 5.2, sensitive text like Social Security number, Taxpayer Identification Number, birthday, bank accounts and children’s names, should be redacted from the filings made with the court and accompanying exhibits, (exhibits normally do not need to be attached to the original complaint, but should be presented to Court after the discovery). The redacted text can be erased with black-out or white-out, and the page should have an indication that it was redacted - most often by stamping word \"redacted\" on the bottom. Alternately, the filing party may ask the court’s permission to file some exhibits completely under seal. A minor's name of the petitions should be replaced with initials.",
"title": "United States"
},
{
"paragraph_id": 12,
"text": "A person making a redacted filing can file an unredacted copy under seal, or the Court can choose to order later that an additional filing be made under seal without redaction. Copies of both redacted and unredacted documents filed with court should be provided to the other parties in the case. Some courts also require that an additional electronic courtesy copy be emailed to the other parties.",
"title": "United States"
},
{
"paragraph_id": 13,
"text": "Before filing the complaint, it is important for plaintiff(s) to remember that Federal courts can impose liability for the prevailing party's attorney fees to the losing party, if the judge considers the case frivolous or for purposes of harassment, even when the case was voluntarily dismissed. In the case of Fox v. Vice, the U.S. Supreme Court held that reasonable attorneys' fees could be awarded to the defendant under 42 U.S.C. Sec. 1988, but only for costs that the defendant would not have incurred \"but for the frivolous claims.\" Even when there is no actual trial or judgment, if there is only pre-trial motion practice such as motions to dismiss, attorney fee shifting still can be awarded under FRCP Rule 11 when the opposing party files a Motion for Sanctions and the court issue an order identifying the sanctioned conduct and the basis for the sanction. The losing party has a right to appeal any order for sanctions in the higher court. In the state courts, each party is generally responsible only for its own attorney fees, with certain exceptions.",
"title": "United States"
},
{
"paragraph_id": 14,
"text": "In 1883, the Rules of the Supreme Court replaced the term complaint with statement of claim. This was then replaced in 1998 with particulars of claim by the Civil Procedure Rules, which also replaced the word plaintiff with claimant as part of a drastic reform of English legal terminology. Thus, in England and Wales, a claimant now initiates a claim by filing a claim form (instead of a writ of summons), and either pleads particulars of claim on the claim form itself or as a separate document.",
"title": "England and Wales"
}
] | In legal terminology, a complaint is any formal legal document that sets out the facts and legal reasons that the filing party or parties believes are sufficient to support a claim against the party or parties against whom the claim is brought that entitles the plaintiff(s) to a remedy. For example, the Federal Rules of Civil Procedure (FRCP) that govern civil litigation in United States courts provide that a civil action is commenced with the filing or service of a pleading called a complaint. Civil court rules in states that have incorporated the Federal Rules of Civil Procedure use the same term for the same pleading. In Civil Law, a "complaint" is the first formal action taken to officially begin a lawsuit. This written document contains the allegations against the defense, the specific laws violated, the facts that led to the dispute, and any demands made by the plaintiff to restore justice. In some jurisdictions, specific types of criminal cases may also be commenced by the filing of a complaint, also sometimes called a criminal complaint or felony complaint. Most criminal cases are prosecuted in the name of the governmental authority that promulgates criminal statutes and enforces the police power of the state with the goal of seeking criminal sanctions, such as the State or Crown. In the United States, the complaint is often associated with misdemeanor criminal charges presented by the prosecutor without the grand jury process. In most U.S. jurisdictions, the charging instrument presented to and authorized by a grand jury is referred to as an indictment. | 2002-02-25T15:43:11Z | 2023-11-24T06:25:21Z | [
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] | https://en.wikipedia.org/wiki/Complaint |
7,362 | Casimir III the Great | Casimir III the Great (Polish: Kazimierz III Wielki; 30 April 1310 – 5 November 1370) reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, and fought to retain the title in the Galicia-Volhynia Wars. He was the last Polish king from the Piast dynasty.
Casimir inherited a kingdom weakened by war and made it prosperous and wealthy. He reformed the Polish army and doubled the size of the kingdom. He reformed the judicial system and introduced a legal code, gaining the title "the Polish Justinian". Casimir built extensively and founded the Jagiellonian University (back then simply called the University of Krakow), the oldest Polish university and one of the oldest in the world. He also confirmed privileges and protections previously granted to Jews and encouraged them to settle in Poland in great numbers.
Casimir left no legitimate sons. When he died in 1370 from an injury received while hunting, his nephew, King Louis I of Hungary, succeeded him as king of Poland in personal union with Hungary.
Casimir was born on 30 April 1310 in Kowal, Kuyavia, the third son of Ladislaus the Short and Jadwiga of Kalisz. He had two brothers who died in infancy and three sisters: Kunegunda, Elżbieta, and Jadwiga. When Casimir attained the throne in 1333, his position was in danger, as his neighbours did not recognise his title and instead called him "king of Kraków". The kingdom was depopulated and exhausted by war, and the economy was ruined. In 1335, in the Treaty of Trentschin, Casimir was forced to relinquish his claims to Silesia "in perpetuity".
Casimir began to rebuild the country and strengthen its defenses. During his reign, nearly 30 towns were supplied with fortification walls and some 50 castles were constructed, including castles along the Trail of the Eagle's Nests. These achievements are still celebrated today, in a commonly-known ditty that translates as follows: inherited wooden towns and left them fortified with stone and brick (Kazimierz Wielki zastał Polskę drewnianą, a zostawił murowaną).
He organized a meeting of kings in Kraków in 1364 at which he exhibited the wealth of the Polish kingdom. Casimir is the only king in Polish history to both receive and retain the title of "Great", as Bolesław I is more commonly known as "the Brave".
Casimir ensured stability and great prospects for the future of the country. He established the Corona Regni Poloniae – the Crown of the Polish Kingdom, which certified the existence of the Polish lands independently from the monarch. Prior to that, the lands were only the property of the Piast dynasty.
At the Sejm in Wiślica, on 11 March 1347, Casimir introduced reforms to the Polish judicial system and sanctioned civil and criminal codes for Great and Lesser Poland, earning the title "the Polish Justinian". In 1364, having received permission from Pope Urban V, Casimir established the University of Kraków, now the oldest university in Poland. It was regarded as a rare distinction, since it was only the second university founded in Central Europe, after the Charles University in Prague.
Casimir demonstrated competence in foreign diplomacy and managed to double the size of his kingdom. He neutralized relations with potential enemies to the west and north, and began to expand his territory eastward. He conquered the Ruthenian kingdom of Halych and Volodymyr (a territory in the modern-day Ukraine), known in Polish history as Red Ruthenia and Volhynia. By extending the borders far south-east, the Polish kingdom gained access to the lucrative Black Sea trade.
In 1355, in Buda, Casimir designated his nephew Louis I of Hungary as his successor should he produce no male heir, just as his father had with Charles I of Hungary to gain help against Bohemia. In exchange Casimir gained a favourable Hungarian attitude, needed in disputes with the hostile Teutonic Order and the Kingdom of Bohemia. At the time Casimir was 45 years old, and so producing a son did not seem unreasonable.
Casimir left no legal son, however, begetting five daughters instead. He tried to adopt his grandson, Casimir IV, Duke of Pomerania, in his last will. The child had been born to his eldest daughter, Elisabeth, Duchess of Pomerania, in 1351. This part of the testament was invalidated by Louis I of Hungary, however, who had traveled to Kraków quickly after Casimir died (in 1370) and bribed the nobles with future privileges. Casimir III also had a son-in-law, Louis VI of Bavaria, Margrave and Prince-elector of Brandenburg, who was considered a possible successor, but he was deemed ineligible as his wife, Casimir's daughter Cunigunde, had died in 1357 without issue.
Thus King Louis I of Hungary became successor in Poland. Louis was proclaimed king upon Casimir's death in 1370, though Casimir's sister Elisabeth (Louis's mother) held much of the real power until her death in 1380.
Casimir was facetiously named "the Peasants' King". He introduced the codes of law of Greater and Lesser Poland as an attempt to end the overwhelming superiority of the nobility. During his reign all three major classes — the nobility, priesthood, and bourgeoisie — were more or less counterbalanced, allowing Casimir to strengthen his monarchic position. He was known for siding with the weak when the law did not protect them from nobles and clergymen. He reportedly even supported a peasant whose house had been demolished by his own mistress, after she had ordered it to be pulled down because it disturbed her enjoyment of the beautiful landscape.
His popularity with the peasants helped to rebuild the country, as part of the reconstruction program was funded by a land tax paid by the lower social class.
On 9 October 1334, Casimir confirmed the privileges granted to Jews in 1264 by Bolesław V the Chaste. Under penalty of death, he prohibited the kidnapping of Jewish children for the purpose of enforced Christian baptism, and he inflicted heavy punishment for the desecration of Jewish cemeteries. While Jews had lived in Poland since before his reign, Casimir allowed them to settle in Poland in great numbers and protected them as people of the king. About 70 percent of the world's European Jews, or Ashkenazi, can trace their ancestry to Poland due to Casimir's reforms. Casimir's legendary Jewish mistress Esterka remains unconfirmed by direct historical evidence.
Casimir III was married four times:
On 30 April or 16 October 1325, Casimir married Aldona of Lithuania, daughter of Grand Duke Gediminas of Lithuania and Jewna. They had:
Aldona died on 26 May 1339. Casimir remained a widower for two years.
On 29 September 1341, Casimir married his second wife, Adelaide of Hesse. She was a daughter of Henry II, Landgrave of Hesse, and Elizabeth of Meissen. They had no children. Casimir started living separately from Adelaide soon after the marriage. Their loveless marriage lasted until 1356, when he declared himself divorced.
After Casimir "divorced" Adelaide he married his mistress Christina Rokiczana, the widow of Miklusz Rokiczani, a wealthy merchant. Her own origins are unknown. Following the death of her first husband she had entered the court of Bohemia in Prague as a lady-in-waiting. Casimir brought her with him from Prague and convinced the abbot of the Benedictine abbey of Tyniec to marry them. The marriage was held in a secret ceremony but soon became known. Queen Adelaide renounced it as bigamous and returned to Hesse. Casimir continued living with Christine despite complaints by Pope Innocent VI on behalf of Queen Adelaide. This marriage lasted until 1363–64 when Casimir again declared himself divorced. They had no children.
In about 1365, Casimir married his fourth wife Hedwig of Żagań. She was a daughter of Henry V of Iron, Duke of Żagań and Anna of Mazovia. They had three children:
As Adelheid was still alive (and possibly Christina as well), the marriage to Hedwig was also considered bigamous. Because of this, the legitimacy of his three young daughters was disputed. Casimir managed to have Anna and Kunigunde legitimated by Pope Urban V on 5 December 1369. Jadwiga the younger was legitimated by Pope Gregory XI on 11 October 1371 (after Casimir's death).
Casimir's full title was: Casimir by the grace of God king of Poland and Rus' (Ruthenia), lord and heir of the land of Kraków, Sandomierz, Sieradz, Łęczyca, Kuyavia, Pomerania (Pomerelia). The title in Latin was: Kazimirus, Dei gratia rex Polonie et Russie, nec non Cracovie, Sandomirie, Siradie, Lancicie, Cuiavie, et Pomeranieque Terrarum et Ducatuum Dominus et Heres. | [
{
"paragraph_id": 0,
"text": "Casimir III the Great (Polish: Kazimierz III Wielki; 30 April 1310 – 5 November 1370) reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, and fought to retain the title in the Galicia-Volhynia Wars. He was the last Polish king from the Piast dynasty.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Casimir inherited a kingdom weakened by war and made it prosperous and wealthy. He reformed the Polish army and doubled the size of the kingdom. He reformed the judicial system and introduced a legal code, gaining the title \"the Polish Justinian\". Casimir built extensively and founded the Jagiellonian University (back then simply called the University of Krakow), the oldest Polish university and one of the oldest in the world. He also confirmed privileges and protections previously granted to Jews and encouraged them to settle in Poland in great numbers.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Casimir left no legitimate sons. When he died in 1370 from an injury received while hunting, his nephew, King Louis I of Hungary, succeeded him as king of Poland in personal union with Hungary.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Casimir was born on 30 April 1310 in Kowal, Kuyavia, the third son of Ladislaus the Short and Jadwiga of Kalisz. He had two brothers who died in infancy and three sisters: Kunegunda, Elżbieta, and Jadwiga. When Casimir attained the throne in 1333, his position was in danger, as his neighbours did not recognise his title and instead called him \"king of Kraków\". The kingdom was depopulated and exhausted by war, and the economy was ruined. In 1335, in the Treaty of Trentschin, Casimir was forced to relinquish his claims to Silesia \"in perpetuity\".",
"title": "The Great King"
},
{
"paragraph_id": 4,
"text": "Casimir began to rebuild the country and strengthen its defenses. During his reign, nearly 30 towns were supplied with fortification walls and some 50 castles were constructed, including castles along the Trail of the Eagle's Nests. These achievements are still celebrated today, in a commonly-known ditty that translates as follows: inherited wooden towns and left them fortified with stone and brick (Kazimierz Wielki zastał Polskę drewnianą, a zostawił murowaną).",
"title": "The Great King"
},
{
"paragraph_id": 5,
"text": "He organized a meeting of kings in Kraków in 1364 at which he exhibited the wealth of the Polish kingdom. Casimir is the only king in Polish history to both receive and retain the title of \"Great\", as Bolesław I is more commonly known as \"the Brave\".",
"title": "The Great King"
},
{
"paragraph_id": 6,
"text": "Casimir ensured stability and great prospects for the future of the country. He established the Corona Regni Poloniae – the Crown of the Polish Kingdom, which certified the existence of the Polish lands independently from the monarch. Prior to that, the lands were only the property of the Piast dynasty.",
"title": "The Great King"
},
{
"paragraph_id": 7,
"text": "At the Sejm in Wiślica, on 11 March 1347, Casimir introduced reforms to the Polish judicial system and sanctioned civil and criminal codes for Great and Lesser Poland, earning the title \"the Polish Justinian\". In 1364, having received permission from Pope Urban V, Casimir established the University of Kraków, now the oldest university in Poland. It was regarded as a rare distinction, since it was only the second university founded in Central Europe, after the Charles University in Prague.",
"title": "The Great King"
},
{
"paragraph_id": 8,
"text": "Casimir demonstrated competence in foreign diplomacy and managed to double the size of his kingdom. He neutralized relations with potential enemies to the west and north, and began to expand his territory eastward. He conquered the Ruthenian kingdom of Halych and Volodymyr (a territory in the modern-day Ukraine), known in Polish history as Red Ruthenia and Volhynia. By extending the borders far south-east, the Polish kingdom gained access to the lucrative Black Sea trade.",
"title": "The Great King"
},
{
"paragraph_id": 9,
"text": "In 1355, in Buda, Casimir designated his nephew Louis I of Hungary as his successor should he produce no male heir, just as his father had with Charles I of Hungary to gain help against Bohemia. In exchange Casimir gained a favourable Hungarian attitude, needed in disputes with the hostile Teutonic Order and the Kingdom of Bohemia. At the time Casimir was 45 years old, and so producing a son did not seem unreasonable.",
"title": "The Great King"
},
{
"paragraph_id": 10,
"text": "Casimir left no legal son, however, begetting five daughters instead. He tried to adopt his grandson, Casimir IV, Duke of Pomerania, in his last will. The child had been born to his eldest daughter, Elisabeth, Duchess of Pomerania, in 1351. This part of the testament was invalidated by Louis I of Hungary, however, who had traveled to Kraków quickly after Casimir died (in 1370) and bribed the nobles with future privileges. Casimir III also had a son-in-law, Louis VI of Bavaria, Margrave and Prince-elector of Brandenburg, who was considered a possible successor, but he was deemed ineligible as his wife, Casimir's daughter Cunigunde, had died in 1357 without issue.",
"title": "The Great King"
},
{
"paragraph_id": 11,
"text": "Thus King Louis I of Hungary became successor in Poland. Louis was proclaimed king upon Casimir's death in 1370, though Casimir's sister Elisabeth (Louis's mother) held much of the real power until her death in 1380.",
"title": "The Great King"
},
{
"paragraph_id": 12,
"text": "Casimir was facetiously named \"the Peasants' King\". He introduced the codes of law of Greater and Lesser Poland as an attempt to end the overwhelming superiority of the nobility. During his reign all three major classes — the nobility, priesthood, and bourgeoisie — were more or less counterbalanced, allowing Casimir to strengthen his monarchic position. He was known for siding with the weak when the law did not protect them from nobles and clergymen. He reportedly even supported a peasant whose house had been demolished by his own mistress, after she had ordered it to be pulled down because it disturbed her enjoyment of the beautiful landscape.",
"title": "Society under the reign of Casimir"
},
{
"paragraph_id": 13,
"text": "His popularity with the peasants helped to rebuild the country, as part of the reconstruction program was funded by a land tax paid by the lower social class.",
"title": "Society under the reign of Casimir"
},
{
"paragraph_id": 14,
"text": "On 9 October 1334, Casimir confirmed the privileges granted to Jews in 1264 by Bolesław V the Chaste. Under penalty of death, he prohibited the kidnapping of Jewish children for the purpose of enforced Christian baptism, and he inflicted heavy punishment for the desecration of Jewish cemeteries. While Jews had lived in Poland since before his reign, Casimir allowed them to settle in Poland in great numbers and protected them as people of the king. About 70 percent of the world's European Jews, or Ashkenazi, can trace their ancestry to Poland due to Casimir's reforms. Casimir's legendary Jewish mistress Esterka remains unconfirmed by direct historical evidence.",
"title": "Relationship with Jews"
},
{
"paragraph_id": 15,
"text": "Casimir III was married four times:",
"title": "Relationships and children"
},
{
"paragraph_id": 16,
"text": "On 30 April or 16 October 1325, Casimir married Aldona of Lithuania, daughter of Grand Duke Gediminas of Lithuania and Jewna. They had:",
"title": "Relationships and children"
},
{
"paragraph_id": 17,
"text": "Aldona died on 26 May 1339. Casimir remained a widower for two years.",
"title": "Relationships and children"
},
{
"paragraph_id": 18,
"text": "On 29 September 1341, Casimir married his second wife, Adelaide of Hesse. She was a daughter of Henry II, Landgrave of Hesse, and Elizabeth of Meissen. They had no children. Casimir started living separately from Adelaide soon after the marriage. Their loveless marriage lasted until 1356, when he declared himself divorced.",
"title": "Relationships and children"
},
{
"paragraph_id": 19,
"text": "After Casimir \"divorced\" Adelaide he married his mistress Christina Rokiczana, the widow of Miklusz Rokiczani, a wealthy merchant. Her own origins are unknown. Following the death of her first husband she had entered the court of Bohemia in Prague as a lady-in-waiting. Casimir brought her with him from Prague and convinced the abbot of the Benedictine abbey of Tyniec to marry them. The marriage was held in a secret ceremony but soon became known. Queen Adelaide renounced it as bigamous and returned to Hesse. Casimir continued living with Christine despite complaints by Pope Innocent VI on behalf of Queen Adelaide. This marriage lasted until 1363–64 when Casimir again declared himself divorced. They had no children.",
"title": "Relationships and children"
},
{
"paragraph_id": 20,
"text": "In about 1365, Casimir married his fourth wife Hedwig of Żagań. She was a daughter of Henry V of Iron, Duke of Żagań and Anna of Mazovia. They had three children:",
"title": "Relationships and children"
},
{
"paragraph_id": 21,
"text": "As Adelheid was still alive (and possibly Christina as well), the marriage to Hedwig was also considered bigamous. Because of this, the legitimacy of his three young daughters was disputed. Casimir managed to have Anna and Kunigunde legitimated by Pope Urban V on 5 December 1369. Jadwiga the younger was legitimated by Pope Gregory XI on 11 October 1371 (after Casimir's death).",
"title": "Relationships and children"
},
{
"paragraph_id": 22,
"text": "Casimir's full title was: Casimir by the grace of God king of Poland and Rus' (Ruthenia), lord and heir of the land of Kraków, Sandomierz, Sieradz, Łęczyca, Kuyavia, Pomerania (Pomerelia). The title in Latin was: Kazimirus, Dei gratia rex Polonie et Russie, nec non Cracovie, Sandomirie, Siradie, Lancicie, Cuiavie, et Pomeranieque Terrarum et Ducatuum Dominus et Heres.",
"title": "Title and style"
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] | Casimir III the Great reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, and fought to retain the title in the Galicia-Volhynia Wars. He was the last Polish king from the Piast dynasty. Casimir inherited a kingdom weakened by war and made it prosperous and wealthy. He reformed the Polish army and doubled the size of the kingdom. He reformed the judicial system and introduced a legal code, gaining the title "the Polish Justinian". Casimir built extensively and founded the Jagiellonian University, the oldest Polish university and one of the oldest in the world. He also confirmed privileges and protections previously granted to Jews and encouraged them to settle in Poland in great numbers. Casimir left no legitimate sons. When he died in 1370 from an injury received while hunting, his nephew, King Louis I of Hungary, succeeded him as king of Poland in personal union with Hungary. | 2001-12-05T21:04:10Z | 2023-12-11T17:07:13Z | [
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] | https://en.wikipedia.org/wiki/Casimir_III_the_Great |
7,363 | Complexity | Complexity characterises the behaviour of a system or model whose components interact in multiple ways and follow local rules, leading to non-linearity, randomness, collective dynamics, hierarchy, and emergence.
The term is generally used to characterize something with many parts where those parts interact with each other in multiple ways, culminating in a higher order of emergence greater than the sum of its parts. The study of these complex linkages at various scales is the main goal of complex systems theory.
The intuitive criterion of complexity can be formulated as follows: a system would be more complex if more parts could be distinguished, and if more connections between them existed.
As of 2010, a number of approaches to characterizing complexity have been used in science; Zayed et al. reflect many of these. Neil Johnson states that "even among scientists, there is no unique definition of complexity – and the scientific notion has traditionally been conveyed using particular examples..." Ultimately Johnson adopts the definition of "complexity science" as "the study of the phenomena which emerge from a collection of interacting objects".
Definitions of complexity often depend on the concept of a "system" – a set of parts or elements that have relationships among them differentiated from relationships with other elements outside the relational regime. Many definitions tend to postulate or assume that complexity expresses a condition of numerous elements in a system and numerous forms of relationships among the elements. However, what one sees as complex and what one sees as simple is relative and changes with time.
Warren Weaver posited in 1948 two forms of complexity: disorganized complexity, and organized complexity. Phenomena of 'disorganized complexity' are treated using probability theory and statistical mechanics, while 'organized complexity' deals with phenomena that escape such approaches and confront "dealing simultaneously with a sizable number of factors which are interrelated into an organic whole". Weaver's 1948 paper has influenced subsequent thinking about complexity.
The approaches that embody concepts of systems, multiple elements, multiple relational regimes, and state spaces might be summarized as implying that complexity arises from the number of distinguishable relational regimes (and their associated state spaces) in a defined system.
Some definitions relate to the algorithmic basis for the expression of a complex phenomenon or model or mathematical expression, as later set out herein.
One of the problems in addressing complexity issues has been formalizing the intuitive conceptual distinction between the large number of variances in relationships extant in random collections, and the sometimes large, but smaller, number of relationships between elements in systems where constraints (related to correlation of otherwise independent elements) simultaneously reduce the variations from element independence and create distinguishable regimes of more-uniform, or correlated, relationships, or interactions.
Weaver perceived and addressed this problem, in at least a preliminary way, in drawing a distinction between "disorganized complexity" and "organized complexity".
In Weaver's view, disorganized complexity results from the particular system having a very large number of parts, say millions of parts, or many more. Though the interactions of the parts in a "disorganized complexity" situation can be seen as largely random, the properties of the system as a whole can be understood by using probability and statistical methods.
A prime example of disorganized complexity is a gas in a container, with the gas molecules as the parts. Some would suggest that a system of disorganized complexity may be compared with the (relative) simplicity of planetary orbits – the latter can be predicted by applying Newton's laws of motion. Of course, most real-world systems, including planetary orbits, eventually become theoretically unpredictable even using Newtonian dynamics; as discovered by modern chaos theory.
Organized complexity, in Weaver's view, resides in nothing else than the non-random, or correlated, interaction between the parts. These correlated relationships create a differentiated structure that can, as a system, interact with other systems. The coordinated system manifests properties not carried or dictated by individual parts. The organized aspect of this form of complexity in regards to other systems, rather than the subject system, can be said to "emerge," without any "guiding hand".
The number of parts does not have to be very large for a particular system to have emergent properties. A system of organized complexity may be understood in its properties (behavior among the properties) through modeling and simulation, particularly modeling and simulation with computers. An example of organized complexity is a city neighborhood as a living mechanism, with the neighborhood people among the system's parts.
There are generally rules which can be invoked to explain the origin of complexity in a given system.
The source of disorganized complexity is the large number of parts in the system of interest, and the lack of correlation between elements in the system.
In the case of self-organizing living systems, usefully organized complexity comes from beneficially mutated organisms being selected to survive by their environment for their differential reproductive ability or at least success over inanimate matter or less organized complex organisms. See e.g. Robert Ulanowicz's treatment of ecosystems.
Complexity of an object or system is a relative property. For instance, for many functions (problems), such a computational complexity as time of computation is smaller when multitape Turing machines are used than when Turing machines with one tape are used. Random Access Machines allow one to even more decrease time complexity (Greenlaw and Hoover 1998: 226), while inductive Turing machines can decrease even the complexity class of a function, language or set (Burgin 2005). This shows that tools of activity can be an important factor of complexity.
In several scientific fields, "complexity" has a precise meaning:
Other fields introduce less precisely defined notions of complexity:
Complexity has always been a part of our environment, and therefore many scientific fields have dealt with complex systems and phenomena. From one perspective, that which is somehow complex – displaying variation without being random – is most worthy of interest given the rewards found in the depths of exploration.
The use of the term complex is often confused with the term complicated. In today's systems, this is the difference between myriad connecting "stovepipes" and effective "integrated" solutions. This means that complex is the opposite of independent, while complicated is the opposite of simple.
While this has led some fields to come up with specific definitions of complexity, there is a more recent movement to regroup observations from different fields to study complexity in itself, whether it appears in anthills, human brains or social systems. One such interdisciplinary group of fields is relational order theories.
The behavior of a complex system is often said to be due to emergence and self-organization. Chaos theory has investigated the sensitivity of systems to variations in initial conditions as one cause of complex behaviour.
Recent developments in artificial life, evolutionary computation and genetic algorithms have led to an increasing emphasis on complexity and complex adaptive systems.
In social science, the study on the emergence of macro-properties from the micro-properties, also known as macro-micro view in sociology. The topic is commonly recognized as social complexity that is often related to the use of computer simulation in social science, i.e. computational sociology.
Systems theory has long been concerned with the study of complex systems (in recent times, complexity theory and complex systems have also been used as names of the field). These systems are present in the research of a variety disciplines, including biology, economics, social studies and technology. Recently, complexity has become a natural domain of interest of real world socio-cognitive systems and emerging systemics research. Complex systems tend to be high-dimensional, non-linear, and difficult to model. In specific circumstances, they may exhibit low-dimensional behaviour.
In information theory, algorithmic information theory is concerned with the complexity of strings of data.
Complex strings are harder to compress. While intuition tells us that this may depend on the codec used to compress a string (a codec could be theoretically created in any arbitrary language, including one in which the very small command "X" could cause the computer to output a very complicated string like "18995316"), any two Turing-complete languages can be implemented in each other, meaning that the length of two encodings in different languages will vary by at most the length of the "translation" language – which will end up being negligible for sufficiently large data strings.
These algorithmic measures of complexity tend to assign high values to random noise. However, under a certain understanding of complexity, arguably the most intuitive one, random noise is meaningless and so not complex at all.
Information entropy is also sometimes used in information theory as indicative of complexity, but entropy is also high for randomness. In the case of complex systems, information fluctuation complexity was designed so as not to measure randomness as complex and has been useful in many applications. More recently, a complexity metric was developed for images that can avoid measuring noise as complex by using the minimum description length principle.
There has also been interest in measuring the complexity of classification problems in supervised machine learning. This can be useful in meta-learning to determine for which data sets filtering (or removing suspected noisy instances from the training set) is the most beneficial and could be expanded to other areas. For binary classification, such measures can consider the overlaps in feature values from differing classes, the separability of the classes, and measures of geometry, topology, and density of manifolds.
For non-binary classification problems, instance hardness is a bottom-up approach that first seeks to identify instances that are likely to be misclassified (assumed to be the most complex). The characteristics of such instances are then measured using supervised measures such as the number of disagreeing neighbors or the likelihood of the assigned class label given the input features.
A recent study based on molecular simulations and compliance constants describes molecular recognition as a phenomenon of organisation. Even for small molecules like carbohydrates, the recognition process can not be predicted or designed even assuming that each individual hydrogen bond's strength is exactly known.
Driving from the law of requisite variety, Boisot and McKelvey formulated the ‘Law of Requisite Complexity’, that holds that, in order to be efficaciously adaptive, the internal complexity of a system must match the external complexity it confronts.
The application in project management of the Law of Requisite Complexity, as proposed by Stefan Morcov, is the analysis of positive, appropriate and negative complexity.
Project complexity is the property of a project which makes it difficult to understand, foresee, and keep under control its overall behavior, even when given reasonably complete information about the project system.
Maik Maurer considers complexity as a reality in engineering. He proposed a methodology for managing complexity in systems engineering :
1. Define the system.
2. Identify the type of complexity.
3. Determine the strategy.
4. Determine the method.
5. Model the system.
6. Implement the method.
Computational complexity theory is the study of the complexity of problems – that is, the difficulty of solving them. Problems can be classified by complexity class according to the time it takes for an algorithm – usually a computer program – to solve them as a function of the problem size. Some problems are difficult to solve, while others are easy. For example, some difficult problems need algorithms that take an exponential amount of time in terms of the size of the problem to solve. Take the travelling salesman problem, for example. It can be solved, as denoted in Big O notation, in time O ( n 2 2 n ) {\displaystyle O(n^{2}2^{n})} (where n is the size of the network to visit – the number of cities the travelling salesman must visit exactly once). As the size of the network of cities grows, the time needed to find the route grows (more than) exponentially.
Even though a problem may be computationally solvable in principle, in actual practice it may not be that simple. These problems might require large amounts of time or an inordinate amount of space. Computational complexity may be approached from many different aspects. Computational complexity can be investigated on the basis of time, memory or other resources used to solve the problem. Time and space are two of the most important and popular considerations when problems of complexity are analyzed.
There exist a certain class of problems that although they are solvable in principle they require so much time or space that it is not practical to attempt to solve them. These problems are called intractable.
There is another form of complexity called hierarchical complexity. It is orthogonal to the forms of complexity discussed so far, which are called horizontal complexity.
The concept of complexity is being increasingly used in the study of cosmology, big history, and cultural evolution with increasing granularity, as well as increasing quantification.
Eric Chaisson has advanced a cosmoglogical complexity metric which he terms Energy Rate Density. This approach has been expanded in various works, most recently applied to measuring evolving complexity of nation-states and their growing cities. | [
{
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},
{
"paragraph_id": 1,
"text": "The term is generally used to characterize something with many parts where those parts interact with each other in multiple ways, culminating in a higher order of emergence greater than the sum of its parts. The study of these complex linkages at various scales is the main goal of complex systems theory.",
"title": ""
},
{
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"text": "The intuitive criterion of complexity can be formulated as follows: a system would be more complex if more parts could be distinguished, and if more connections between them existed.",
"title": ""
},
{
"paragraph_id": 3,
"text": "As of 2010, a number of approaches to characterizing complexity have been used in science; Zayed et al. reflect many of these. Neil Johnson states that \"even among scientists, there is no unique definition of complexity – and the scientific notion has traditionally been conveyed using particular examples...\" Ultimately Johnson adopts the definition of \"complexity science\" as \"the study of the phenomena which emerge from a collection of interacting objects\".",
"title": ""
},
{
"paragraph_id": 4,
"text": "Definitions of complexity often depend on the concept of a \"system\" – a set of parts or elements that have relationships among them differentiated from relationships with other elements outside the relational regime. Many definitions tend to postulate or assume that complexity expresses a condition of numerous elements in a system and numerous forms of relationships among the elements. However, what one sees as complex and what one sees as simple is relative and changes with time.",
"title": "Overview"
},
{
"paragraph_id": 5,
"text": "Warren Weaver posited in 1948 two forms of complexity: disorganized complexity, and organized complexity. Phenomena of 'disorganized complexity' are treated using probability theory and statistical mechanics, while 'organized complexity' deals with phenomena that escape such approaches and confront \"dealing simultaneously with a sizable number of factors which are interrelated into an organic whole\". Weaver's 1948 paper has influenced subsequent thinking about complexity.",
"title": "Overview"
},
{
"paragraph_id": 6,
"text": "The approaches that embody concepts of systems, multiple elements, multiple relational regimes, and state spaces might be summarized as implying that complexity arises from the number of distinguishable relational regimes (and their associated state spaces) in a defined system.",
"title": "Overview"
},
{
"paragraph_id": 7,
"text": "Some definitions relate to the algorithmic basis for the expression of a complex phenomenon or model or mathematical expression, as later set out herein.",
"title": "Overview"
},
{
"paragraph_id": 8,
"text": "One of the problems in addressing complexity issues has been formalizing the intuitive conceptual distinction between the large number of variances in relationships extant in random collections, and the sometimes large, but smaller, number of relationships between elements in systems where constraints (related to correlation of otherwise independent elements) simultaneously reduce the variations from element independence and create distinguishable regimes of more-uniform, or correlated, relationships, or interactions.",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 9,
"text": "Weaver perceived and addressed this problem, in at least a preliminary way, in drawing a distinction between \"disorganized complexity\" and \"organized complexity\".",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 10,
"text": "In Weaver's view, disorganized complexity results from the particular system having a very large number of parts, say millions of parts, or many more. Though the interactions of the parts in a \"disorganized complexity\" situation can be seen as largely random, the properties of the system as a whole can be understood by using probability and statistical methods.",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 11,
"text": "A prime example of disorganized complexity is a gas in a container, with the gas molecules as the parts. Some would suggest that a system of disorganized complexity may be compared with the (relative) simplicity of planetary orbits – the latter can be predicted by applying Newton's laws of motion. Of course, most real-world systems, including planetary orbits, eventually become theoretically unpredictable even using Newtonian dynamics; as discovered by modern chaos theory.",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 12,
"text": "Organized complexity, in Weaver's view, resides in nothing else than the non-random, or correlated, interaction between the parts. These correlated relationships create a differentiated structure that can, as a system, interact with other systems. The coordinated system manifests properties not carried or dictated by individual parts. The organized aspect of this form of complexity in regards to other systems, rather than the subject system, can be said to \"emerge,\" without any \"guiding hand\".",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 13,
"text": "The number of parts does not have to be very large for a particular system to have emergent properties. A system of organized complexity may be understood in its properties (behavior among the properties) through modeling and simulation, particularly modeling and simulation with computers. An example of organized complexity is a city neighborhood as a living mechanism, with the neighborhood people among the system's parts.",
"title": "Disorganized vs. organized"
},
{
"paragraph_id": 14,
"text": "There are generally rules which can be invoked to explain the origin of complexity in a given system.",
"title": "Sources and factors"
},
{
"paragraph_id": 15,
"text": "The source of disorganized complexity is the large number of parts in the system of interest, and the lack of correlation between elements in the system.",
"title": "Sources and factors"
},
{
"paragraph_id": 16,
"text": "In the case of self-organizing living systems, usefully organized complexity comes from beneficially mutated organisms being selected to survive by their environment for their differential reproductive ability or at least success over inanimate matter or less organized complex organisms. See e.g. Robert Ulanowicz's treatment of ecosystems.",
"title": "Sources and factors"
},
{
"paragraph_id": 17,
"text": "Complexity of an object or system is a relative property. For instance, for many functions (problems), such a computational complexity as time of computation is smaller when multitape Turing machines are used than when Turing machines with one tape are used. Random Access Machines allow one to even more decrease time complexity (Greenlaw and Hoover 1998: 226), while inductive Turing machines can decrease even the complexity class of a function, language or set (Burgin 2005). This shows that tools of activity can be an important factor of complexity.",
"title": "Sources and factors"
},
{
"paragraph_id": 18,
"text": "In several scientific fields, \"complexity\" has a precise meaning:",
"title": "Varied meanings"
},
{
"paragraph_id": 19,
"text": "Other fields introduce less precisely defined notions of complexity:",
"title": "Varied meanings"
},
{
"paragraph_id": 20,
"text": "Complexity has always been a part of our environment, and therefore many scientific fields have dealt with complex systems and phenomena. From one perspective, that which is somehow complex – displaying variation without being random – is most worthy of interest given the rewards found in the depths of exploration.",
"title": "Study"
},
{
"paragraph_id": 21,
"text": "The use of the term complex is often confused with the term complicated. In today's systems, this is the difference between myriad connecting \"stovepipes\" and effective \"integrated\" solutions. This means that complex is the opposite of independent, while complicated is the opposite of simple.",
"title": "Study"
},
{
"paragraph_id": 22,
"text": "While this has led some fields to come up with specific definitions of complexity, there is a more recent movement to regroup observations from different fields to study complexity in itself, whether it appears in anthills, human brains or social systems. One such interdisciplinary group of fields is relational order theories.",
"title": "Study"
},
{
"paragraph_id": 23,
"text": "The behavior of a complex system is often said to be due to emergence and self-organization. Chaos theory has investigated the sensitivity of systems to variations in initial conditions as one cause of complex behaviour.",
"title": "Topics"
},
{
"paragraph_id": 24,
"text": "Recent developments in artificial life, evolutionary computation and genetic algorithms have led to an increasing emphasis on complexity and complex adaptive systems.",
"title": "Topics"
},
{
"paragraph_id": 25,
"text": "In social science, the study on the emergence of macro-properties from the micro-properties, also known as macro-micro view in sociology. The topic is commonly recognized as social complexity that is often related to the use of computer simulation in social science, i.e. computational sociology.",
"title": "Topics"
},
{
"paragraph_id": 26,
"text": "Systems theory has long been concerned with the study of complex systems (in recent times, complexity theory and complex systems have also been used as names of the field). These systems are present in the research of a variety disciplines, including biology, economics, social studies and technology. Recently, complexity has become a natural domain of interest of real world socio-cognitive systems and emerging systemics research. Complex systems tend to be high-dimensional, non-linear, and difficult to model. In specific circumstances, they may exhibit low-dimensional behaviour.",
"title": "Topics"
},
{
"paragraph_id": 27,
"text": "In information theory, algorithmic information theory is concerned with the complexity of strings of data.",
"title": "Topics"
},
{
"paragraph_id": 28,
"text": "Complex strings are harder to compress. While intuition tells us that this may depend on the codec used to compress a string (a codec could be theoretically created in any arbitrary language, including one in which the very small command \"X\" could cause the computer to output a very complicated string like \"18995316\"), any two Turing-complete languages can be implemented in each other, meaning that the length of two encodings in different languages will vary by at most the length of the \"translation\" language – which will end up being negligible for sufficiently large data strings.",
"title": "Topics"
},
{
"paragraph_id": 29,
"text": "These algorithmic measures of complexity tend to assign high values to random noise. However, under a certain understanding of complexity, arguably the most intuitive one, random noise is meaningless and so not complex at all.",
"title": "Topics"
},
{
"paragraph_id": 30,
"text": "Information entropy is also sometimes used in information theory as indicative of complexity, but entropy is also high for randomness. In the case of complex systems, information fluctuation complexity was designed so as not to measure randomness as complex and has been useful in many applications. More recently, a complexity metric was developed for images that can avoid measuring noise as complex by using the minimum description length principle.",
"title": "Topics"
},
{
"paragraph_id": 31,
"text": "There has also been interest in measuring the complexity of classification problems in supervised machine learning. This can be useful in meta-learning to determine for which data sets filtering (or removing suspected noisy instances from the training set) is the most beneficial and could be expanded to other areas. For binary classification, such measures can consider the overlaps in feature values from differing classes, the separability of the classes, and measures of geometry, topology, and density of manifolds.",
"title": "Topics"
},
{
"paragraph_id": 32,
"text": "For non-binary classification problems, instance hardness is a bottom-up approach that first seeks to identify instances that are likely to be misclassified (assumed to be the most complex). The characteristics of such instances are then measured using supervised measures such as the number of disagreeing neighbors or the likelihood of the assigned class label given the input features.",
"title": "Topics"
},
{
"paragraph_id": 33,
"text": "A recent study based on molecular simulations and compliance constants describes molecular recognition as a phenomenon of organisation. Even for small molecules like carbohydrates, the recognition process can not be predicted or designed even assuming that each individual hydrogen bond's strength is exactly known.",
"title": "Topics"
},
{
"paragraph_id": 34,
"text": "Driving from the law of requisite variety, Boisot and McKelvey formulated the ‘Law of Requisite Complexity’, that holds that, in order to be efficaciously adaptive, the internal complexity of a system must match the external complexity it confronts.",
"title": "Topics"
},
{
"paragraph_id": 35,
"text": "The application in project management of the Law of Requisite Complexity, as proposed by Stefan Morcov, is the analysis of positive, appropriate and negative complexity.",
"title": "Topics"
},
{
"paragraph_id": 36,
"text": "Project complexity is the property of a project which makes it difficult to understand, foresee, and keep under control its overall behavior, even when given reasonably complete information about the project system.",
"title": "Topics"
},
{
"paragraph_id": 37,
"text": "Maik Maurer considers complexity as a reality in engineering. He proposed a methodology for managing complexity in systems engineering :",
"title": "Topics"
},
{
"paragraph_id": 38,
"text": "1. Define the system.",
"title": "Topics"
},
{
"paragraph_id": 39,
"text": "2. Identify the type of complexity.",
"title": "Topics"
},
{
"paragraph_id": 40,
"text": "3. Determine the strategy.",
"title": "Topics"
},
{
"paragraph_id": 41,
"text": "4. Determine the method.",
"title": "Topics"
},
{
"paragraph_id": 42,
"text": "5. Model the system.",
"title": "Topics"
},
{
"paragraph_id": 43,
"text": "6. Implement the method.",
"title": "Topics"
},
{
"paragraph_id": 44,
"text": "Computational complexity theory is the study of the complexity of problems – that is, the difficulty of solving them. Problems can be classified by complexity class according to the time it takes for an algorithm – usually a computer program – to solve them as a function of the problem size. Some problems are difficult to solve, while others are easy. For example, some difficult problems need algorithms that take an exponential amount of time in terms of the size of the problem to solve. Take the travelling salesman problem, for example. It can be solved, as denoted in Big O notation, in time O ( n 2 2 n ) {\\displaystyle O(n^{2}2^{n})} (where n is the size of the network to visit – the number of cities the travelling salesman must visit exactly once). As the size of the network of cities grows, the time needed to find the route grows (more than) exponentially.",
"title": "Applications"
},
{
"paragraph_id": 45,
"text": "Even though a problem may be computationally solvable in principle, in actual practice it may not be that simple. These problems might require large amounts of time or an inordinate amount of space. Computational complexity may be approached from many different aspects. Computational complexity can be investigated on the basis of time, memory or other resources used to solve the problem. Time and space are two of the most important and popular considerations when problems of complexity are analyzed.",
"title": "Applications"
},
{
"paragraph_id": 46,
"text": "There exist a certain class of problems that although they are solvable in principle they require so much time or space that it is not practical to attempt to solve them. These problems are called intractable.",
"title": "Applications"
},
{
"paragraph_id": 47,
"text": "There is another form of complexity called hierarchical complexity. It is orthogonal to the forms of complexity discussed so far, which are called horizontal complexity.",
"title": "Applications"
},
{
"paragraph_id": 48,
"text": "The concept of complexity is being increasingly used in the study of cosmology, big history, and cultural evolution with increasing granularity, as well as increasing quantification.",
"title": "Emerging applications in other fields"
},
{
"paragraph_id": 49,
"text": "Eric Chaisson has advanced a cosmoglogical complexity metric which he terms Energy Rate Density. This approach has been expanded in various works, most recently applied to measuring evolving complexity of nation-states and their growing cities.",
"title": "Emerging applications in other fields"
}
] | Complexity characterises the behaviour of a system or model whose components interact in multiple ways and follow local rules, leading to non-linearity, randomness, collective dynamics, hierarchy, and emergence. The term is generally used to characterize something with many parts where those parts interact with each other in multiple ways, culminating in a higher order of emergence greater than the sum of its parts. The study of these complex linkages at various scales is the main goal of complex systems theory. The intuitive criterion of complexity can be formulated as follows: a system would be more complex if more parts could be distinguished, and if more connections between them existed. As of 2010, a number of approaches to characterizing complexity have been used in science; Zayed et al.
reflect many of these. Neil Johnson states that "even among scientists, there is no unique definition of complexity – and the scientific notion has traditionally been conveyed using particular examples..." Ultimately Johnson adopts the definition of "complexity science" as "the study of the phenomena which emerge from a collection of interacting objects". | 2002-02-25T15:43:11Z | 2023-08-20T12:47:35Z | [
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7,366 | Chastity | Chastity, also known as purity, is a virtue related to temperance. Someone who is chaste refrains either from sexual activity that is considered immoral or from any sexual activity, according to their state of life. In some contexts, for example when making a vow of chastity, chastity means celibacy.
The words chaste and chastity stem from the Latin adjective castus ("cut off", "separated", "pure"). The words entered the English language around the middle of the 13th century. Chaste meant "virtuous", "pure from unlawful sexual intercourse" or (from the early 14th century on) as a noun, a virgin, while chastity meant "(sexual) purity".
Thomas Aquinas links castus (chastity) to the Latin verb castigo ("chastise, reprimand, correct"), with a reference to Aristotle's Nicomachean Ethics: "Chastity takes its name from the fact that reason 'chastises' concupiscence, which, like a child, needs curbing, as the Philosopher states".
For many Jews, Christians, and Muslims, people should restrict their acts of a sexual nature to the context of marriage. For unmarried people, chastity is equivalent to sexual abstinence. Sexual acts outside of or apart from marriage, such as adultery, fornication, masturbation, and prostitution, are considered immoral due to lust.
In many Christian traditions, chastity is synonymous with purity. The Catholic Church teaches that chastity involves, in the words of cardinal bishop Alfonso López Trujillo, "the successful integration of sexuality within the person and thus the inner unity of man in his bodily and spiritual being", which according to one's marital status requires either having no sexual relationship, or only having sexual relations with one's spouse. In Western Christian morality, chastity is placed opposite the deadly sin of lust, and is classified as one of seven virtues. The moderation of sexual desires is also required to be virtuous. Reason, will, and desire can harmoniously work together to do what is good.
As an emblem of inward chastity, some Christians choose to wear a cord, girdle or a cincture of one of the several Confraternities of the Cord or a purity ring. The cord is worn as a symbol of chastity in honour of a chaste saint whom the bearer asks for intercession. The purity ring is worn before holy matrimony by those who marry or for the rest of their lives by those who stay single.
In marriage, the spouses commit to a lifelong relationship that excludes sexual intimacy with other persons. A third form of chastity, often called "vidual chastity", is expected by the society for a period after the woman's husband dies. For example, Anglican Bishop Jeremy Taylor defined five rules in Holy Living (1650), including abstaining from marrying "so long as she is with child by her former husband" and "within the year of mourning".
In the Roman Catholic Church, members of the consecrated life vow or promise celibacy as one of the evangelical counsels. In 306, the Synod of Elvira proscribed clergy from marrying. This was unevenly enforced until the Second Lateran Council in 1139 when it found its way into canon law. Unmarried deacons promise celibacy to their local bishop when ordained.
Eastern Catholic priests are permitted to marry, provided they do so before ordination and outside monastic life.
Vows of chastity can be taken either as part of an organised religious life (such as Roman Catholic Beguines and Beghards in the past) or on an individual basis: as a voluntary act of devotion, or as part of an ascetic lifestyle (often devoted to contemplation), or both. Some Protestant religious communities, such as the Bruderhof, take vows of chastity as part of the church membership process.
Chastity is a central and pivotal concept in Roman Catholic praxis. Roman Catholic teaching regards chastity as essential in maintaining and cultivating the unity of body with spirit and thus the integrity of the human being. It is also fundamental to the practise of the Catholic life because it involves an apprenticeship in self-mastery. By attaining mastery over one's passions, reason, will, and desire can harmoniously work together to do what is good.
The theology of the body of the Lutheran Churches emphasizes the role of the Holy Spirit, who sanctified the bodies of Christians to be God's temple.
Many Lutheran monks and Lutheran nuns practice celibacy, though in some Lutheran religious orders it is not compulsory.
In the Church of Jesus Christ of Latter-day Saints chastity is very important:
Physical intimacy between husband and wife is a beautiful and sacred part of God's plan for His children. It is an expression of love within marriage and allows husband and wife to participate in the creation of life. God has commanded that this sacred power be expressed only between a man and a woman who are legally married. The law of chastity applies to both men and women. It includes strict abstinence from sexual relations before marriage and complete fidelity and loyalty to one's spouse after marriage.
The law of chastity requires that sexual relations be reserved for marriage between a man and a woman.
In addition to reserving sexual intimacy for marriage, we obey the law of chastity by controlling our thoughts, words, and actions. Jesus Christ taught, "Ye have heard that it was said by them of old time, Thou shalt not commit adultery: but I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart" (Matthew 5:27–28)."
Teachings of the Church of Jesus Christ of Latter-Day Saints also include that sexual expression within marriage is an important dimension of spousal bonding apart from, but not necessarily avoiding, its procreative result.
The most famous personal example of chastity in the Quran is the Virgin Mary (Mariam):
And ˹remember˺ the one who guarded her chastity, so We breathed into her through Our angel, ˹Gabriel,˺ making her and her son a sign for all peoples.
screening herself off from them. Then We sent to her Our angel, ˹Gabriel,˺ appearing before her as a man, perfectly formed. She appealed, “I truly seek refuge in the Most Compassionate from you! ˹So leave me alone˺ if you are God-fearing.” He responded, “I am only a messenger from your Lord, ˹sent˺ to bless you with a pure son.” She wondered, “How can I have a son when no man has ever touched me, nor am I unchaste?”
Extramarital sex is forbidden. The Quran says:
Do not go near adultery. It is truly a shameful deed and an evil way.
˹They are˺ those who do not invoke any other god besides Allah, nor take a ˹human˺ life—made sacred by Allah—except with ˹legal˺ right, nor commit fornication. And whoever does ˹any of˺ this will face the penalty. Their punishment will be multiplied on the Day of Judgment, and they will remain in it forever, in disgrace. As for those who repent, believe, and do good deeds, they are the ones whose evil deeds Allah will change into good deeds. For Allah is All-Forgiving, Most Merciful.
In a list of commendable deeds the Quran says:
Surely ˹for˺ Muslim men and women, believing men and women, devout men and women, truthful men and women, patient men and women, humble men and women, charitable men and women, fasting men and women, men and women who guard their chastity, and men and women who remember Allah often—for ˹all of˺ them Allah has prepared forgiveness and a great reward.
Because the sex desire is usually attained before a man is financially capable of marriage, the love to God and mindfulness of Him should be sufficient motive for chastity:
And let those who do not have the means to marry keep themselves chaste until Allah enriches them out of His bounty. And if any of those ˹bondspeople˺ in your possession desires a deed of emancipation, make it possible for them, if you find goodness in them. And give them some of Allah’s wealth which He has granted you. Do not force your ˹slave˺ girls into prostitution for your own worldly gains while they wish to remain chaste. And if someone coerces them, then after such a coercion Allah is certainly All-Forgiving, Most Merciful ˹to them˺.
Chastity is mandatory in Islam. Sex outside legitimacy is prohibited, for both men and women, whether married or unmarried. The injunctions and forbiddings in Islam apply equally to men and women. The legal punishment for adultery is equal for men and women. Social hypocrisy in many societies over history had led to a double standard when considering sin committed by men versus sin committed by women. Society tended to be more lenient and permissive towards men, forgiving men for sins not forgivable when women do them.
The prophet's prescription to the youth was:
"O young people! Whoever among you can marry, should marry, because it helps him lower his gaze and guard his modesty (i.e. his private parts from committing illegal sexual intercourse etc.), and whoever is not able to marry, should fast, as fasting diminishes his sexual power."
Chastity is an attitude and a way of life. In Islam it is both a personal and a social value. A Muslim society should not condone relations entailing or conducive to sexual license. Social patterns and practices calculated to inflame sexual desire are frowned upon by Islam, such incitements to immorality including permissive ideologies, titillating works of art, and the failure to inculcate sound moral principles in the young. At the heart of such a view of human sexuality lies the conviction that the notion of personal freedom should never be misconstrued as the freedom to flout God's laws by overstepping the bounds which, in His infinite wisdom, He has set upon the relations of the sexes.
Chastity is highly prized in the Baháʼí Faith. Similar to other Abrahamic religions, Baháʼí teachings call for the restriction of sexual activity to that between a wife and husband in Baháʼí marriage, and discourage members from using pornography or engaging in sexually explicit recreational activities. The concept of chastity is extended to include avoidance of alcohol and mind-altering drugs, profanity, and gaudy or immodest attire.
Hinduism's view on premarital sex is rooted in its concept of ashrama or the stages of life. The first of these stages, known as brahmacharya, roughly translates as chastity. Celibacy and chastity are considered the appropriate behavior for both male and female students during this stage, which precedes the stage of the married householder (grihastha). Sanyasis and Hindu monks or sadhus are also celibate as part of their ascetic discipline.
In Sikhism, premarital or extramarital sex is strictly forbidden. However, it is encouraged to marry and live as a family unit to provide and nurture children for the perpetual benefit of creation (as opposed to sannyasa or living as a monk, which was, and remains, a common spiritual practice in India). A Sikh is encouraged not to live as a recluse, beggar, monk, nun, celibate, or in any similar vein.
The Jain ethical code contains the vow of brahmacarya (meaning "pure conduct"), which prescribes the expectations for Jains concerning sexual activity. Brahmacarya is one of the five major and minor vows of Jainism, prescribing slightly different expectations for ascetics and laypeople, respectively.
Complete celibacy is expected only of Jain ascetics (who are also referred to as monks and nuns). For laypeople, chastity is expected, with extramarital sex and adultery being prohibited.
The teachings of Buddhism include the Noble Eightfold Path, comprising a division called right action. Under the Five Precepts ethical code, upāsaka and upāsikā lay followers should abstain from sexual misconduct, while bhikkhu and bhikkhuni monastics should practice strict chastity.
The Five Precepts of the Taoist religion include "no sexual misconduct", which is interpreted as prohibiting extramarital sex for lay practitioners and marriage or sexual intercourse for monks and nuns.
There are several parts of the government that have the responsibility and eligibility to make laws and enforce them to people regarding the matter of compulsory hijab. First of all, the morality police or Gasht-e Ershad, which are units of the Iranian security forces that patrol the streets and public places to monitor the compliance of women with the hijab law. Also, the Headquarters for Enjoining the Good and Forbidding the Evil, which is a state institution that oversees the implementation of the hijab law and coordinates with other agencies to control mal-veiling. The judiciary, which is the branch of the government that prosecutes and punishes women who violate the hijab law, with penalties ranging from fines and lashes to imprisonment and Flagellation. The Islamic Revolutionary Guard Corps (IRGC), which is a paramilitary force that cooperates with the judiciary and the morality police to suppress women who protest against the hijab law. The parliament, which is the legislative body that drafts and approves laws and regulations related to the hijab law and sets the criteria and indicators for proper veiling. | [
{
"paragraph_id": 0,
"text": "Chastity, also known as purity, is a virtue related to temperance. Someone who is chaste refrains either from sexual activity that is considered immoral or from any sexual activity, according to their state of life. In some contexts, for example when making a vow of chastity, chastity means celibacy.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The words chaste and chastity stem from the Latin adjective castus (\"cut off\", \"separated\", \"pure\"). The words entered the English language around the middle of the 13th century. Chaste meant \"virtuous\", \"pure from unlawful sexual intercourse\" or (from the early 14th century on) as a noun, a virgin, while chastity meant \"(sexual) purity\".",
"title": "Etymology"
},
{
"paragraph_id": 2,
"text": "Thomas Aquinas links castus (chastity) to the Latin verb castigo (\"chastise, reprimand, correct\"), with a reference to Aristotle's Nicomachean Ethics: \"Chastity takes its name from the fact that reason 'chastises' concupiscence, which, like a child, needs curbing, as the Philosopher states\".",
"title": "Etymology"
},
{
"paragraph_id": 3,
"text": "For many Jews, Christians, and Muslims, people should restrict their acts of a sexual nature to the context of marriage. For unmarried people, chastity is equivalent to sexual abstinence. Sexual acts outside of or apart from marriage, such as adultery, fornication, masturbation, and prostitution, are considered immoral due to lust.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 4,
"text": "In many Christian traditions, chastity is synonymous with purity. The Catholic Church teaches that chastity involves, in the words of cardinal bishop Alfonso López Trujillo, \"the successful integration of sexuality within the person and thus the inner unity of man in his bodily and spiritual being\", which according to one's marital status requires either having no sexual relationship, or only having sexual relations with one's spouse. In Western Christian morality, chastity is placed opposite the deadly sin of lust, and is classified as one of seven virtues. The moderation of sexual desires is also required to be virtuous. Reason, will, and desire can harmoniously work together to do what is good.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 5,
"text": "As an emblem of inward chastity, some Christians choose to wear a cord, girdle or a cincture of one of the several Confraternities of the Cord or a purity ring. The cord is worn as a symbol of chastity in honour of a chaste saint whom the bearer asks for intercession. The purity ring is worn before holy matrimony by those who marry or for the rest of their lives by those who stay single.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 6,
"text": "In marriage, the spouses commit to a lifelong relationship that excludes sexual intimacy with other persons. A third form of chastity, often called \"vidual chastity\", is expected by the society for a period after the woman's husband dies. For example, Anglican Bishop Jeremy Taylor defined five rules in Holy Living (1650), including abstaining from marrying \"so long as she is with child by her former husband\" and \"within the year of mourning\".",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 7,
"text": "In the Roman Catholic Church, members of the consecrated life vow or promise celibacy as one of the evangelical counsels. In 306, the Synod of Elvira proscribed clergy from marrying. This was unevenly enforced until the Second Lateran Council in 1139 when it found its way into canon law. Unmarried deacons promise celibacy to their local bishop when ordained.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 8,
"text": "Eastern Catholic priests are permitted to marry, provided they do so before ordination and outside monastic life.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 9,
"text": "Vows of chastity can be taken either as part of an organised religious life (such as Roman Catholic Beguines and Beghards in the past) or on an individual basis: as a voluntary act of devotion, or as part of an ascetic lifestyle (often devoted to contemplation), or both. Some Protestant religious communities, such as the Bruderhof, take vows of chastity as part of the church membership process.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 10,
"text": "Chastity is a central and pivotal concept in Roman Catholic praxis. Roman Catholic teaching regards chastity as essential in maintaining and cultivating the unity of body with spirit and thus the integrity of the human being. It is also fundamental to the practise of the Catholic life because it involves an apprenticeship in self-mastery. By attaining mastery over one's passions, reason, will, and desire can harmoniously work together to do what is good.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 11,
"text": "The theology of the body of the Lutheran Churches emphasizes the role of the Holy Spirit, who sanctified the bodies of Christians to be God's temple.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 12,
"text": "Many Lutheran monks and Lutheran nuns practice celibacy, though in some Lutheran religious orders it is not compulsory.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 13,
"text": "In the Church of Jesus Christ of Latter-day Saints chastity is very important:",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 14,
"text": "Physical intimacy between husband and wife is a beautiful and sacred part of God's plan for His children. It is an expression of love within marriage and allows husband and wife to participate in the creation of life. God has commanded that this sacred power be expressed only between a man and a woman who are legally married. The law of chastity applies to both men and women. It includes strict abstinence from sexual relations before marriage and complete fidelity and loyalty to one's spouse after marriage.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 15,
"text": "The law of chastity requires that sexual relations be reserved for marriage between a man and a woman.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 16,
"text": "In addition to reserving sexual intimacy for marriage, we obey the law of chastity by controlling our thoughts, words, and actions. Jesus Christ taught, \"Ye have heard that it was said by them of old time, Thou shalt not commit adultery: but I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart\" (Matthew 5:27–28).\"",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 17,
"text": "Teachings of the Church of Jesus Christ of Latter-Day Saints also include that sexual expression within marriage is an important dimension of spousal bonding apart from, but not necessarily avoiding, its procreative result.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 18,
"text": "The most famous personal example of chastity in the Quran is the Virgin Mary (Mariam):",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 19,
"text": "And ˹remember˺ the one who guarded her chastity, so We breathed into her through Our angel, ˹Gabriel,˺ making her and her son a sign for all peoples.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 20,
"text": "screening herself off from them. Then We sent to her Our angel, ˹Gabriel,˺ appearing before her as a man, perfectly formed. She appealed, “I truly seek refuge in the Most Compassionate from you! ˹So leave me alone˺ if you are God-fearing.” He responded, “I am only a messenger from your Lord, ˹sent˺ to bless you with a pure son.” She wondered, “How can I have a son when no man has ever touched me, nor am I unchaste?”",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 21,
"text": "Extramarital sex is forbidden. The Quran says:",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 22,
"text": "Do not go near adultery. It is truly a shameful deed and an evil way.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 23,
"text": "˹They are˺ those who do not invoke any other god besides Allah, nor take a ˹human˺ life—made sacred by Allah—except with ˹legal˺ right, nor commit fornication. And whoever does ˹any of˺ this will face the penalty. Their punishment will be multiplied on the Day of Judgment, and they will remain in it forever, in disgrace. As for those who repent, believe, and do good deeds, they are the ones whose evil deeds Allah will change into good deeds. For Allah is All-Forgiving, Most Merciful.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 24,
"text": "In a list of commendable deeds the Quran says:",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 25,
"text": "Surely ˹for˺ Muslim men and women, believing men and women, devout men and women, truthful men and women, patient men and women, humble men and women, charitable men and women, fasting men and women, men and women who guard their chastity, and men and women who remember Allah often—for ˹all of˺ them Allah has prepared forgiveness and a great reward.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 26,
"text": "Because the sex desire is usually attained before a man is financially capable of marriage, the love to God and mindfulness of Him should be sufficient motive for chastity:",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 27,
"text": "And let those who do not have the means to marry keep themselves chaste until Allah enriches them out of His bounty. And if any of those ˹bondspeople˺ in your possession desires a deed of emancipation, make it possible for them, if you find goodness in them. And give them some of Allah’s wealth which He has granted you. Do not force your ˹slave˺ girls into prostitution for your own worldly gains while they wish to remain chaste. And if someone coerces them, then after such a coercion Allah is certainly All-Forgiving, Most Merciful ˹to them˺.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 28,
"text": "Chastity is mandatory in Islam. Sex outside legitimacy is prohibited, for both men and women, whether married or unmarried. The injunctions and forbiddings in Islam apply equally to men and women. The legal punishment for adultery is equal for men and women. Social hypocrisy in many societies over history had led to a double standard when considering sin committed by men versus sin committed by women. Society tended to be more lenient and permissive towards men, forgiving men for sins not forgivable when women do them.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 29,
"text": "The prophet's prescription to the youth was:",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 30,
"text": "\"O young people! Whoever among you can marry, should marry, because it helps him lower his gaze and guard his modesty (i.e. his private parts from committing illegal sexual intercourse etc.), and whoever is not able to marry, should fast, as fasting diminishes his sexual power.\"",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 31,
"text": "Chastity is an attitude and a way of life. In Islam it is both a personal and a social value. A Muslim society should not condone relations entailing or conducive to sexual license. Social patterns and practices calculated to inflame sexual desire are frowned upon by Islam, such incitements to immorality including permissive ideologies, titillating works of art, and the failure to inculcate sound moral principles in the young. At the heart of such a view of human sexuality lies the conviction that the notion of personal freedom should never be misconstrued as the freedom to flout God's laws by overstepping the bounds which, in His infinite wisdom, He has set upon the relations of the sexes.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 32,
"text": "Chastity is highly prized in the Baháʼí Faith. Similar to other Abrahamic religions, Baháʼí teachings call for the restriction of sexual activity to that between a wife and husband in Baháʼí marriage, and discourage members from using pornography or engaging in sexually explicit recreational activities. The concept of chastity is extended to include avoidance of alcohol and mind-altering drugs, profanity, and gaudy or immodest attire.",
"title": "In Abrahamic religions"
},
{
"paragraph_id": 33,
"text": "Hinduism's view on premarital sex is rooted in its concept of ashrama or the stages of life. The first of these stages, known as brahmacharya, roughly translates as chastity. Celibacy and chastity are considered the appropriate behavior for both male and female students during this stage, which precedes the stage of the married householder (grihastha). Sanyasis and Hindu monks or sadhus are also celibate as part of their ascetic discipline.",
"title": "In Eastern religions"
},
{
"paragraph_id": 34,
"text": "In Sikhism, premarital or extramarital sex is strictly forbidden. However, it is encouraged to marry and live as a family unit to provide and nurture children for the perpetual benefit of creation (as opposed to sannyasa or living as a monk, which was, and remains, a common spiritual practice in India). A Sikh is encouraged not to live as a recluse, beggar, monk, nun, celibate, or in any similar vein.",
"title": "In Eastern religions"
},
{
"paragraph_id": 35,
"text": "The Jain ethical code contains the vow of brahmacarya (meaning \"pure conduct\"), which prescribes the expectations for Jains concerning sexual activity. Brahmacarya is one of the five major and minor vows of Jainism, prescribing slightly different expectations for ascetics and laypeople, respectively.",
"title": "In Eastern religions"
},
{
"paragraph_id": 36,
"text": "Complete celibacy is expected only of Jain ascetics (who are also referred to as monks and nuns). For laypeople, chastity is expected, with extramarital sex and adultery being prohibited.",
"title": "In Eastern religions"
},
{
"paragraph_id": 37,
"text": "The teachings of Buddhism include the Noble Eightfold Path, comprising a division called right action. Under the Five Precepts ethical code, upāsaka and upāsikā lay followers should abstain from sexual misconduct, while bhikkhu and bhikkhuni monastics should practice strict chastity.",
"title": "In Eastern religions"
},
{
"paragraph_id": 38,
"text": "The Five Precepts of the Taoist religion include \"no sexual misconduct\", which is interpreted as prohibiting extramarital sex for lay practitioners and marriage or sexual intercourse for monks and nuns.",
"title": "In Eastern religions"
},
{
"paragraph_id": 39,
"text": "There are several parts of the government that have the responsibility and eligibility to make laws and enforce them to people regarding the matter of compulsory hijab. First of all, the morality police or Gasht-e Ershad, which are units of the Iranian security forces that patrol the streets and public places to monitor the compliance of women with the hijab law. Also, the Headquarters for Enjoining the Good and Forbidding the Evil, which is a state institution that oversees the implementation of the hijab law and coordinates with other agencies to control mal-veiling. The judiciary, which is the branch of the government that prosecutes and punishes women who violate the hijab law, with penalties ranging from fines and lashes to imprisonment and Flagellation. The Islamic Revolutionary Guard Corps (IRGC), which is a paramilitary force that cooperates with the judiciary and the morality police to suppress women who protest against the hijab law. The parliament, which is the legislative body that drafts and approves laws and regulations related to the hijab law and sets the criteria and indicators for proper veiling.",
"title": "Government"
}
] | Chastity, also known as purity, is a virtue related to temperance. Someone who is chaste refrains either from sexual activity that is considered immoral or from any sexual activity, according to their state of life. In some contexts, for example when making a vow of chastity, chastity means celibacy. | 2001-12-06T10:26:52Z | 2023-12-05T08:38:39Z | [
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7,376 | Cosmic microwave background | The cosmic microwave background (CMB or CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dark. However, a sufficiently sensitive radio telescope detects a faint background glow that is almost uniform and is not associated with any star, galaxy, or other object. This glow is strongest in the microwave region of the radio spectrum. The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s.
CMB is landmark evidence of the Big Bang theory for the origin of the universe. In the Big Bang cosmological models, during the earliest periods, the universe was filled with an opaque fog of dense, hot plasma of sub-atomic particles. As the universe expanded, this plasma cooled to the point where protons and electrons combined to form neutral atoms of mostly hydrogen. Unlike the plasma, these atoms could not scatter thermal radiation by Thomson scattering, and so the universe became transparent. Known as the recombination epoch, this decoupling event released photons to travel freely through space – sometimes referred to as relic radiation. However, the photons have grown less energetic due to the cosmological redshift associated with the expansion of the universe. The surface of last scattering refers to a shell at the right distance in space so photons are now received that were originally emitted at the time of decoupling.
The CMB is not completely smooth and uniform, showing a faint anisotropy that can be mapped by sensitive detectors. Ground and space-based experiments such as COBE and WMAP have been used to measure these temperature inhomogeneities. The anisotropy structure is determined by various interactions of matter and photons up to the point of decoupling, which results in a characteristic lumpy pattern that varies with angular scale. The distribution of the anisotropy across the sky has frequency components that can be represented by a power spectrum displaying a sequence of peaks and valleys. The peak values of this spectrum hold important information about the physical properties of the early universe: the first peak determines the overall curvature of the universe, while the second and third peak detail the density of normal matter and so-called dark matter, respectively. Extracting fine details from the CMB data can be challenging, since the emission has undergone modification by foreground features such as galaxy clusters.
Precise measurements of the CMB are critical to cosmology, since any proposed model of the universe must explain this radiation. The CMB has a thermal black body spectrum at a temperature of 2.72548±0.00057 K. The spectral radiance dEν/dν peaks at 160.23 GHz, in the microwave range of frequencies, corresponding to a photon energy of about 6.626×10 eV. Alternatively, if spectral radiance is defined as dEλ/dλ, then the peak wavelength is 1.063 mm (282 GHz, 1.168×10 eV photons). The glow is very nearly uniform in all directions, but the tiny residual variations show a very specific pattern, the same as that expected of a fairly uniformly distributed hot gas that has expanded to the current size of the universe. In particular, the spectral radiance at different angles of observation in the sky contains small anisotropies, or irregularities, which vary with the size of the region examined. They have been measured in detail, and match what would be expected if small thermal variations, generated by quantum fluctuations of matter in a very tiny space, had expanded to the size of the observable universe we see today. This is a very active field of study, with scientists seeking both better data (for example, the Planck spacecraft) and better interpretations of the initial conditions of expansion. Although many different processes might produce the general form of a black body spectrum, no model other than the Big Bang has yet explained the fluctuations. As a result, most cosmologists consider the Big Bang model of the universe to be the best explanation for the CMB.
The high degree of uniformity throughout the observable universe and its faint but measured anisotropy lend strong support for the Big Bang model in general and the ΛCDM ("Lambda Cold Dark Matter") model in particular. Moreover, the fluctuations are coherent on angular scales that are larger than the apparent cosmological horizon at recombination. Either such coherence is acausally fine-tuned, or cosmic inflation occurred.
Other than the temperature and polarization anisotropy, the CMB frequency spectrum is expected to feature tiny departures from the black-body law known as spectral distortions. These are also at the focus of an active research effort with the hope of a first measurement within the forthcoming decades, as they contain a wealth of information about the primordial universe and the formation of structures at late time.
The cosmic microwave background radiation is an emission of uniform, black body thermal energy coming from all parts of the sky. The radiation is isotropic to roughly one part in 100,000: the root mean square variations are only 18 μK, after subtracting out a dipole anisotropy from the Doppler shift of the background radiation. The latter is caused by the peculiar velocity of the Sun relative to the comoving cosmic rest frame as it moves at 369.82 ± 0.11 km/s towards the constellation Leo (galactic longitude 264.021 ± 0.011, galactic latitude 48.253 ± 0.005). The CMB dipole and aberration at higher multipoles have been measured, consistent with galactic motion.
In the Big Bang model for the formation of the universe, inflationary cosmology predicts that after about 10 seconds the nascent universe underwent exponential growth that smoothed out nearly all irregularities. The remaining irregularities were caused by quantum fluctuations in the inflaton field that caused the inflation event. Long before the formation of stars and planets, the early universe was smaller, much hotter and, starting 10 seconds after the Big Bang, filled with a uniform glow from its white-hot fog of interacting plasma of photons, electrons, and baryons.
As the universe expanded, adiabatic cooling caused the energy density of the plasma to decrease until it became favorable for electrons to combine with protons, forming hydrogen atoms. This recombination event happened when the temperature was around 3000 K or when the universe was approximately 379,000 years old. As photons did not interact with these electrically neutral atoms, the former began to travel freely through space, resulting in the decoupling of matter and radiation.
The color temperature of the ensemble of decoupled photons has continued to diminish ever since; now down to 2.7260±0.0013 K, it will continue to drop as the universe expands. The intensity of the radiation corresponds to black-body radiation at 2.726 K because red-shifted black-body radiation is just like black-body radiation at a lower temperature. According to the Big Bang model, the radiation from the sky we measure today comes from a spherical surface called the surface of last scattering. This represents the set of locations in space at which the decoupling event is estimated to have occurred and at a point in time such that the photons from that distance have just reached observers. Most of the radiation energy in the universe is in the cosmic microwave background, making up a fraction of roughly 6×10 of the total density of the universe.
Two of the greatest successes of the Big Bang theory are its prediction of the almost perfect black body spectrum and its detailed prediction of the anisotropies in the cosmic microwave background. The CMB spectrum has become the most precisely measured black body spectrum in nature.
The energy density of the CMB is 0.260 eV/cm (4.17×10 J/m) which yields about 411 photons/cm.
The cosmic microwave background was first predicted in 1948 by Ralph Alpher and Robert Herman, in close relation to work performed by Alpher's PhD advisor George Gamow. Alpher and Herman were able to estimate the temperature of the cosmic microwave background to be 5 K, though two years later they re-estimated it at 28 K. This high estimate was due to a misestimate of the Hubble constant by Alfred Behr, which could not be replicated and was later abandoned for the earlier estimate. Although there were several previous estimates of the temperature of space, these estimates had two flaws. First, they were measurements of the effective temperature of space and did not suggest that space was filled with a thermal Planck spectrum. Next, they depend on our being at a special spot at the edge of the Milky Way galaxy and they did not suggest the radiation is isotropic. The estimates would yield very different predictions if Earth happened to be located elsewhere in the universe.
The 1948 results of Alpher and Herman were discussed in many physics settings through about 1955, when both left the Applied Physics Laboratory at Johns Hopkins University. The mainstream astronomical community, however, was not intrigued at the time by cosmology. Alpher and Herman's prediction was rediscovered by Yakov Zel'dovich in the early 1960s, and independently predicted by Robert Dicke at the same time. The first published recognition of the CMB radiation as a detectable phenomenon appeared in a brief paper by Soviet astrophysicists A. G. Doroshkevich and Igor Novikov, in the spring of 1964. In 1964, David Todd Wilkinson and Peter Roll, Dicke's colleagues at Princeton University, began constructing a Dicke radiometer to measure the cosmic microwave background. In 1964, Arno Penzias and Robert Woodrow Wilson at the Crawford Hill location of Bell Telephone Laboratories in nearby Holmdel Township, New Jersey had built a Dicke radiometer that they intended to use for radio astronomy and satellite communication experiments. On 20 May 1964 they made their first measurement clearly showing the presence of the microwave background, with their instrument having an excess 4.2K antenna temperature which they could not account for. After receiving a telephone call from Crawford Hill, Dicke said "Boys, we've been scooped." A meeting between the Princeton and Crawford Hill groups determined that the antenna temperature was indeed due to the microwave background. Penzias and Wilson received the 1978 Nobel Prize in Physics for their discovery.
The interpretation of the cosmic microwave background was a controversial issue in the 1960s with some proponents of the steady state theory arguing that the microwave background was the result of scattered starlight from distant galaxies. Using this model, and based on the study of narrow absorption line features in the spectra of stars, the astronomer Andrew McKellar wrote in 1941: "It can be calculated that the 'rotational temperature' of interstellar space is 2 K." However, during the 1970s the consensus was established that the cosmic microwave background is a remnant of the big bang. This was largely because new measurements at a range of frequencies showed that the spectrum was a thermal, black body spectrum, a result that the steady state model was unable to reproduce.
Harrison, Peebles, Yu and Zel'dovich realized that the early universe would require inhomogeneities at the level of 10 or 10. Rashid Sunyaev later calculated the observable imprint that these inhomogeneities would have on the cosmic microwave background. Increasingly stringent limits on the anisotropy of the cosmic microwave background were set by ground-based experiments during the 1980s. RELIKT-1, a Soviet cosmic microwave background anisotropy experiment on board the Prognoz 9 satellite (launched 1 July 1983) gave upper limits on the large-scale anisotropy. The NASA COBE mission clearly confirmed the primary anisotropy with the Differential Microwave Radiometer instrument, publishing their findings in 1992. The team received the Nobel Prize in physics for 2006 for this discovery.
Inspired by the COBE results, a series of ground and balloon-based experiments measured cosmic microwave background anisotropies on smaller angular scales over the next decade. The primary goal of these experiments was to measure the scale of the first acoustic peak, which COBE did not have sufficient resolution to resolve. This peak corresponds to large scale density variations in the early universe that are created by gravitational instabilities, resulting in acoustical oscillations in the plasma. The first peak in the anisotropy was tentatively detected by the Toco experiment and the result was confirmed by the BOOMERanG and MAXIMA experiments. These measurements demonstrated that the geometry of the universe is approximately flat, rather than curved. They ruled out cosmic strings as a major component of cosmic structure formation and suggested cosmic inflation was the right theory of structure formation.
The second peak was tentatively detected by several experiments before being definitively detected by WMAP, which has tentatively detected the third peak. As of 2010, several experiments to improve measurements of the polarization and the microwave background on small angular scales are ongoing. These include DASI, WMAP, BOOMERanG, QUaD, Planck spacecraft, Atacama Cosmology Telescope, South Pole Telescope and the QUIET telescope.
The cosmic microwave background radiation and the cosmological redshift-distance relation are together regarded as the best available evidence for the Big Bang event. Measurements of the CMB have made the inflationary Big Bang model the Standard Cosmological Model. The discovery of the CMB in the mid-1960s curtailed interest in alternatives such as the steady state theory.
In the late 1940s Alpher and Herman reasoned that if there was a Big Bang, the expansion of the universe would have stretched the high-energy radiation of the very early universe into the microwave region of the electromagnetic spectrum, and down to a temperature of about 5 K. They were slightly off with their estimate, but they had the right idea. They predicted the CMB. It took another 15 years for Penzias and Wilson to discover that the microwave background was actually there.
According to standard cosmology, the CMB gives a snapshot of the hot early universe at the point in time when the temperature dropped enough to allow electrons and protons to form hydrogen atoms. This event made the universe nearly transparent to radiation because light was no longer being scattered off free electrons. When this occurred some 380,000 years after the Big Bang, the temperature of the universe was about 3,000 K. This corresponds to an ambient energy of about 0.26 eV, which is much less than the 13.6 eV ionization energy of hydrogen. This epoch is generally known as the "time of last scattering" or the period of recombination or decoupling.
Since decoupling, the color temperature of the background radiation has dropped by an average factor of 1,089 due to the expansion of the universe. As the universe expands, the CMB photons are redshifted, causing them to decrease in energy. The color temperature of this radiation stays inversely proportional to a parameter that describes the relative expansion of the universe over time, known as the scale length. The color temperature Tr of the CMB as a function of redshift, z, can be shown to be proportional to the color temperature of the CMB as observed in the present day (2.725 K or 0.2348 meV):
For details about the reasoning that the radiation is evidence for the Big Bang, see Cosmic background radiation of the Big Bang.
The anisotropy, or directional dependency, of the cosmic microwave background is divided into two types: primary anisotropy, due to effects that occur at the surface of last scattering and before; and secondary anisotropy, due to effects such as interactions of the background radiation with intervening hot gas or gravitational potentials, which occur between the last scattering surface and the observer.
The structure of the cosmic microwave background anisotropies is principally determined by two effects: acoustic oscillations and diffusion damping (also called collisionless damping or Silk damping). The acoustic oscillations arise because of a conflict in the photon–baryon plasma in the early universe. The pressure of the photons tends to erase anisotropies, whereas the gravitational attraction of the baryons, moving at speeds much slower than light, makes them tend to collapse to form overdensities. These two effects compete to create acoustic oscillations, which give the microwave background its characteristic peak structure. The peaks correspond, roughly, to resonances in which the photons decouple when a particular mode is at its peak amplitude.
The peaks contain interesting physical signatures. The angular scale of the first peak determines the curvature of the universe (but not the topology of the universe). The next peak—ratio of the odd peaks to the even peaks—determines the reduced baryon density. The third peak can be used to get information about the dark-matter density.
The locations of the peaks give important information about the nature of the primordial density perturbations. There are two fundamental types of density perturbations called adiabatic and isocurvature. A general density perturbation is a mixture of both, and different theories that purport to explain the primordial density perturbation spectrum predict different mixtures.
The CMB spectrum can distinguish between these two because these two types of perturbations produce different peak locations. Isocurvature density perturbations produce a series of peaks whose angular scales (ℓ values of the peaks) are roughly in the ratio 1 : 3 : 5 : ..., while adiabatic density perturbations produce peaks whose locations are in the ratio 1 : 2 : 3 : ... Observations are consistent with the primordial density perturbations being entirely adiabatic, providing key support for inflation, and ruling out many models of structure formation involving, for example, cosmic strings.
Collisionless damping is caused by two effects, when the treatment of the primordial plasma as fluid begins to break down:
These effects contribute about equally to the suppression of anisotropies at small scales and give rise to the characteristic exponential damping tail seen in the very small angular scale anisotropies.
The depth of the LSS refers to the fact that the decoupling of the photons and baryons does not happen instantaneously, but instead requires an appreciable fraction of the age of the universe up to that era. One method of quantifying how long this process took uses the photon visibility function (PVF). This function is defined so that, denoting the PVF by P(t), the probability that a CMB photon last scattered between time t and t + dt is given by P(t) dt.
The maximum of the PVF (the time when it is most likely that a given CMB photon last scattered) is known quite precisely. The first-year WMAP results put the time at which P(t) has a maximum as 372,000 years. This is often taken as the "time" at which the CMB formed. However, to figure out how long it took the photons and baryons to decouple, we need a measure of the width of the PVF. The WMAP team finds that the PVF is greater than half of its maximal value (the "full width at half maximum", or FWHM) over an interval of 115,000 years. By this measure, decoupling took place over roughly 115,000 years, and when it was complete, the universe was roughly 487,000 years old.
Since the CMB came into existence, it has apparently been modified by several subsequent physical processes, which are collectively referred to as late-time anisotropy, or secondary anisotropy. When the CMB photons became free to travel unimpeded, ordinary matter in the universe was mostly in the form of neutral hydrogen and helium atoms. However, observations of galaxies today seem to indicate that most of the volume of the intergalactic medium (IGM) consists of ionized material (since there are few absorption lines due to hydrogen atoms). This implies a period of reionization during which some of the material of the universe was broken into hydrogen ions.
The CMB photons are scattered by free charges such as electrons that are not bound in atoms. In an ionized universe, such charged particles have been liberated from neutral atoms by ionizing (ultraviolet) radiation. Today these free charges are at sufficiently low density in most of the volume of the universe that they do not measurably affect the CMB. However, if the IGM was ionized at very early times when the universe was still denser, then there are two main effects on the CMB:
Both of these effects have been observed by the WMAP spacecraft, providing evidence that the universe was ionized at very early times, at a redshift more than 17. The detailed provenance of this early ionizing radiation is still a matter of scientific debate. It may have included starlight from the very first population of stars (population III stars), supernovae when these first stars reached the end of their lives, or the ionizing radiation produced by the accretion disks of massive black holes.
The time following the emission of the cosmic microwave background—and before the observation of the first stars—is semi-humorously referred to by cosmologists as the Dark Age, and is a period which is under intense study by astronomers (see 21 centimeter radiation).
Two other effects which occurred between reionization and our observations of the cosmic microwave background, and which appear to cause anisotropies, are the Sunyaev–Zeldovich effect, where a cloud of high-energy electrons scatters the radiation, transferring some of its energy to the CMB photons, and the Sachs–Wolfe effect, which causes photons from the Cosmic Microwave Background to be gravitationally redshifted or blueshifted due to changing gravitational fields.
The cosmic microwave background is polarized at the level of a few microkelvin. There are two types of polarization, called E-modes and B-modes. This is in analogy to electrostatics, in which the electric field (E-field) has a vanishing curl and the magnetic field (B-field) has a vanishing divergence. The E-modes arise naturally from Thomson scattering in a heterogeneous plasma. The B-modes are not produced by standard scalar type perturbations. Instead they can be created by two mechanisms: the first one is by gravitational lensing of E-modes, which has been measured by the South Pole Telescope in 2013; the second one is from gravitational waves arising from cosmic inflation. Detecting the B-modes is extremely difficult, particularly as the degree of foreground contamination is unknown, and the weak gravitational lensing signal mixes the relatively strong E-mode signal with the B-mode signal.
E-modes were first seen in 2002 by the Degree Angular Scale Interferometer (DASI).
Cosmologists predict two types of B-modes, the first generated during cosmic inflation shortly after the big bang, and the second generated by gravitational lensing at later times.
Primordial gravitational waves are gravitational waves that could be observed in the polarisation of the cosmic microwave background and having their origin in the early universe. Models of cosmic inflation predict that such gravitational waves should appear; thus, their detection would support the theory of inflation, and their strength can confirm and exclude different models of inflation. It is the result of three things: inflationary expansion, reheating after inflation, and turbulent fluid mixing of matter and radiation.
On 17 March 2014, it was announced that the BICEP2 instrument had detected the first type of B-modes, consistent with inflation and gravitational waves in the early universe at the level of r = 0.20+0.07−0.05, which is the amount of power present in gravitational waves compared to the amount of power present in other scalar density perturbations in the very early universe. Had this been confirmed it would have provided strong evidence for cosmic inflation and the Big Bang and against the ekpyrotic model of Paul Steinhardt and Neil Turok. However, on 19 June 2014, considerably lowered confidence in confirming the findings was reported and on 19 September 2014, new results of the Planck experiment reported that the results of BICEP2 can be fully attributed to cosmic dust.
The second type of B-modes was discovered in 2013 using the South Pole Telescope with help from the Herschel Space Observatory. In October 2014, a measurement of the B-mode polarization at 150 GHz was published by the POLARBEAR experiment. Compared to BICEP2, POLARBEAR focuses on a smaller patch of the sky and is less susceptible to dust effects. The team reported that POLARBEAR's measured B-mode polarization was of cosmological origin (and not just due to dust) at a 97.2% confidence level.
Subsequent to the discovery of the CMB, hundreds of cosmic microwave background experiments have been conducted to measure and characterize the signatures of the radiation. The most famous experiment is probably the NASA Cosmic Background Explorer (COBE) satellite that orbited in 1989–1996 and which detected and quantified the large scale anisotropies at the limit of its detection capabilities. Inspired by the initial COBE results of an extremely isotropic and homogeneous background, a series of ground- and balloon-based experiments quantified CMB anisotropies on smaller angular scales over the next decade. The primary goal of these experiments was to measure the angular scale of the first acoustic peak, for which COBE did not have sufficient resolution. These measurements were able to rule out cosmic strings as the leading theory of cosmic structure formation, and suggested cosmic inflation was the right theory.
During the 1990s, the first peak was measured with increasing sensitivity and by 2000 the BOOMERanG experiment reported that the highest power fluctuations occur at scales of approximately one degree. Together with other cosmological data, these results implied that the geometry of the universe is flat. A number of ground-based interferometers provided measurements of the fluctuations with higher accuracy over the next three years, including the Very Small Array, Degree Angular Scale Interferometer (DASI), and the Cosmic Background Imager (CBI). DASI made the first detection of the polarization of the CMB and the CBI provided the first E-mode polarization spectrum with compelling evidence that it is out of phase with the T-mode spectrum.
In June 2001, NASA launched a second CMB space mission, WMAP, to make much more precise measurements of the large scale anisotropies over the full sky. WMAP used symmetric, rapid-multi-modulated scanning, rapid switching radiometers to minimize non-sky signal noise. The first results from this mission, disclosed in 2003, were detailed measurements of the angular power spectrum at a scale of less than one degree, tightly constraining various cosmological parameters. The results are broadly consistent with those expected from cosmic inflation as well as various other competing theories, and are available in detail at NASA's data bank for Cosmic Microwave Background (CMB) (see links below). Although WMAP provided very accurate measurements of the large scale angular fluctuations in the CMB (structures about as broad in the sky as the moon), it did not have the angular resolution to measure the smaller scale fluctuations which had been observed by former ground-based interferometers.
A third space mission, the ESA (European Space Agency) Planck Surveyor, was launched in May 2009 and performed an even more detailed investigation until it was shut down in October 2013. Planck employed both HEMT radiometers and bolometer technology and measured the CMB at a smaller scale than WMAP. Its detectors were trialled in the Antarctic Viper telescope as ACBAR (Arcminute Cosmology Bolometer Array Receiver) experiment—which has produced the most precise measurements at small angular scales to date—and in the Archeops balloon telescope.
On 21 March 2013, the European-led research team behind the Planck cosmology probe released the mission's all-sky map (565x318 jpeg, 3600x1800 jpeg) of the cosmic microwave background. The map suggests the universe is slightly older than researchers expected. According to the map, subtle fluctuations in temperature were imprinted on the deep sky when the cosmos was about 370000 years old. The imprint reflects ripples that arose as early, in the existence of the universe, as the first nonillionth of a second. Apparently, these ripples gave rise to the present vast cosmic web of galaxy clusters and dark matter. Based on the 2013 data, the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. On 5 February 2015, new data was released by the Planck mission, according to which the age of the universe is 13.799±0.021 billion years old and the Hubble constant was measured to be 67.74±0.46 (km/s)/Mpc.
Additional ground-based instruments such as the South Pole Telescope in Antarctica and the proposed Clover Project, Atacama Cosmology Telescope and the QUIET telescope in Chile will provide additional data not available from satellite observations, possibly including the B-mode polarization.
Raw CMBR data, even from space vehicles such as WMAP or Planck, contain foreground effects that completely obscure the fine-scale structure of the cosmic microwave background. The fine-scale structure is superimposed on the raw CMBR data but is too small to be seen at the scale of the raw data. The most prominent of the foreground effects is the dipole anisotropy caused by the Sun's motion relative to the CMBR background. The dipole anisotropy and others due to Earth's annual motion relative to the Sun and numerous microwave sources in the galactic plane and elsewhere must be subtracted out to reveal the extremely tiny variations characterizing the fine-scale structure of the CMBR background.
The detailed analysis of CMBR data to produce maps, an angular power spectrum, and ultimately cosmological parameters is a complicated, computationally difficult problem. Although computing a power spectrum from a map is in principle a simple Fourier transform, decomposing the map of the sky into spherical harmonics,
where the a ℓ m {\displaystyle a_{\ell m}} term measures the mean temperature and Y ( θ , φ ) {\displaystyle Y(\theta ,\varphi )} term accounts for the fluctuation, where the Y ℓ m ( θ , φ ) {\displaystyle Y_{\ell m}(\theta ,\varphi )} refers to a spherical harmonic, and ℓ is the multipole number while m is the azimuthal number.
By applying the angular correlation function, the sum can be reduced to an expression that only involves ℓ and power spectrum term C ≡ ⟨ | a ℓ m | 2 ⟩ . {\displaystyle C\equiv \langle |a_{\ell m}|^{2}\rangle .} The angled brackets indicate the average with respect to all observers in the universe; since the universe is homogeneous and isotropic, therefore there is an absence of preferred observing direction. Thus, C is independent of m. Different choices of ℓ correspond to multipole moments of CMB.
In practice it is hard to take the effects of noise and foreground sources into account. In particular, these foregrounds are dominated by galactic emissions such as Bremsstrahlung, synchrotron, and dust that emit in the microwave band; in practice, the galaxy has to be removed, resulting in a CMB map that is not a full-sky map. In addition, point sources like galaxies and clusters represent another source of foreground which must be removed so as not to distort the short scale structure of the CMB power spectrum.
Constraints on many cosmological parameters can be obtained from their effects on the power spectrum, and results are often calculated using Markov chain Monte Carlo sampling techniques.
When ℓ = 0, the Y ( θ , φ ) {\displaystyle Y(\theta ,\varphi )} term reduced to 1, and what we have left here is just the mean temperature of the CMB. This "mean" is called CMB monopole, and it is observed to have an average temperature of about Tγ = 2.7255±0.0006 K with one standard deviation confidence. The accuracy of this mean temperature may be impaired by the diverse measurements done by different mapping measurements. Such measurements demand absolute temperature devices, such as the FIRAS instrument on the COBE satellite. The measured kTγ is equivalent to 0.234 meV or 4.6×10 mec. The photon number density of a blackbody having such temperature is n γ = 2 ζ ( 3 ) π 2 T γ 3 ≈ 411 c m − 3 {\textstyle n_{\gamma }={\frac {2\zeta (3)}{\pi ^{2}}}T_{\gamma }^{3}\approx \mathrm {411\,cm^{-3}} } . Its energy density is ρ γ = π 2 15 T γ 4 ≈ 4.64 × 10 − 34 g ⋅ c m − 3 ≈ 0.260 e V ⋅ c m − 3 {\textstyle \rho _{\gamma }={\frac {\pi ^{2}}{15}}T_{\gamma }^{4}\approx \mathrm {4.64\times 10^{-34}\,g{\cdot }cm^{-3}} \approx \mathrm {0.260\,eV{\cdot }cm^{-3}} } , and the ratio to the critical density is Ωγ = 5.38 × 10.
CMB dipole represents the largest anisotropy, which is in the first spherical harmonic (ℓ = 1). When ℓ = 1, the Y ( θ , φ ) {\displaystyle Y(\theta ,\varphi )} term reduces to one cosine function and thus encodes amplitude fluctuation. The amplitude of CMB dipole is around 3.3621±0.0010 mK. Since the universe is presumed to be homogeneous and isotropic, an observer should see the blackbody spectrum with temperature T at every point in the sky. The spectrum of the dipole has been confirmed to be the differential of a blackbody spectrum.
CMB dipole is frame-dependent. The CMB dipole moment could also be interpreted as the peculiar motion of the Earth toward the CMB. Its amplitude depends on the time due to the Earth's orbit about the barycenter of the solar system. This enables us to add a time-dependent term to the dipole expression. The modulation of this term is 1 year, which fits the observation done by COBE FIRAS. The dipole moment does not encode any primordial information.
From the CMB data, it is seen that the Sun appears to be moving at 368±2 km/s relative to the reference frame of the CMB (also called the CMB rest frame, or the frame of reference in which there is no motion through the CMB). The Local Group — the galaxy group that includes our own Milky Way galaxy — appears to be moving at 627±22 km/s in the direction of galactic longitude ℓ = 276°±3°, b = 30°±3°. This motion results in an anisotropy of the data (CMB appearing slightly warmer in the direction of movement than in the opposite direction). The standard interpretation of this temperature variation is a simple velocity redshift and blueshift due to motion relative to the CMB, but alternative cosmological models can explain some fraction of the observed dipole temperature distribution in the CMB.
A 2021 study of Wide-field Infrared Survey Explorer questions the kinematic interpretation of CMB anisotropy with high statistical confidence.
The temperature variation in the CMB temperature maps at higher multipoles, or ℓ ≥ 2, is considered to be the result of perturbations of the density in the early Universe, before the recombination epoch. Before recombination, the Universe consisted of a hot, dense plasma of electrons and baryons. In such a hot dense environment, electrons and protons could not form any neutral atoms. The baryons in such early Universe remained highly ionized and so were tightly coupled with photons through the effect of Thompson scattering. These phenomena caused the pressure and gravitational effects to act against each other, and triggered fluctuations in the photon-baryon plasma. Quickly after the recombination epoch, the rapid expansion of the universe caused the plasma to cool down and these fluctuations are "frozen into" the CMB maps we observe today. The said procedure happened at a redshift of around z ⋍ 1100.
With the increasingly precise data provided by WMAP, there have been a number of claims that the CMB exhibits anomalies, such as very large scale anisotropies, anomalous alignments, and non-Gaussian distributions. The most longstanding of these is the low-ℓ multipole controversy. Even in the COBE map, it was observed that the quadrupole (ℓ = 2, spherical harmonic) has a low amplitude compared to the predictions of the Big Bang. In particular, the quadrupole and octupole (ℓ = 3) modes appear to have an unexplained alignment with each other and with both the ecliptic plane and equinoxes. A number of groups have suggested that this could be the signature of new physics at the greatest observable scales; other groups suspect systematic errors in the data.
Ultimately, due to the foregrounds and the cosmic variance problem, the greatest modes will never be as well measured as the small angular scale modes. The analyses were performed on two maps that have had the foregrounds removed as far as possible: the "internal linear combination" map of the WMAP collaboration and a similar map prepared by Max Tegmark and others. Later analyses have pointed out that these are the modes most susceptible to foreground contamination from synchrotron, dust, and Bremsstrahlung emission, and from experimental uncertainty in the monopole and dipole.
A full Bayesian analysis of the WMAP power spectrum demonstrates that the quadrupole prediction of Lambda-CDM cosmology is consistent with the data at the 10% level and that the observed octupole is not remarkable. Carefully accounting for the procedure used to remove the foregrounds from the full sky map further reduces the significance of the alignment by ~5%. Recent observations with the Planck telescope, which is very much more sensitive than WMAP and has a larger angular resolution, record the same anomaly, and so instrumental error (but not foreground contamination) appears to be ruled out. Coincidence is a possible explanation, chief scientist from WMAP, Charles L. Bennett suggested coincidence and human psychology were involved, "I do think there is a bit of a psychological effect; people want to find unusual things."
Assuming the universe keeps expanding and it does not suffer a Big Crunch, a Big Rip, or another similar fate, the cosmic microwave background will continue redshifting until it will no longer be detectable, and will be superseded first by the one produced by starlight, and perhaps, later by the background radiation fields of processes that may take place in the far future of the universe such as proton decay, evaporation of black holes, and positronium decay. | [
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"text": "The cosmic microwave background (CMB or CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dark. However, a sufficiently sensitive radio telescope detects a faint background glow that is almost uniform and is not associated with any star, galaxy, or other object. This glow is strongest in the microwave region of the radio spectrum. The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s.",
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"text": "CMB is landmark evidence of the Big Bang theory for the origin of the universe. In the Big Bang cosmological models, during the earliest periods, the universe was filled with an opaque fog of dense, hot plasma of sub-atomic particles. As the universe expanded, this plasma cooled to the point where protons and electrons combined to form neutral atoms of mostly hydrogen. Unlike the plasma, these atoms could not scatter thermal radiation by Thomson scattering, and so the universe became transparent. Known as the recombination epoch, this decoupling event released photons to travel freely through space – sometimes referred to as relic radiation. However, the photons have grown less energetic due to the cosmological redshift associated with the expansion of the universe. The surface of last scattering refers to a shell at the right distance in space so photons are now received that were originally emitted at the time of decoupling.",
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{
"paragraph_id": 2,
"text": "The CMB is not completely smooth and uniform, showing a faint anisotropy that can be mapped by sensitive detectors. Ground and space-based experiments such as COBE and WMAP have been used to measure these temperature inhomogeneities. The anisotropy structure is determined by various interactions of matter and photons up to the point of decoupling, which results in a characteristic lumpy pattern that varies with angular scale. The distribution of the anisotropy across the sky has frequency components that can be represented by a power spectrum displaying a sequence of peaks and valleys. The peak values of this spectrum hold important information about the physical properties of the early universe: the first peak determines the overall curvature of the universe, while the second and third peak detail the density of normal matter and so-called dark matter, respectively. Extracting fine details from the CMB data can be challenging, since the emission has undergone modification by foreground features such as galaxy clusters.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Precise measurements of the CMB are critical to cosmology, since any proposed model of the universe must explain this radiation. The CMB has a thermal black body spectrum at a temperature of 2.72548±0.00057 K. The spectral radiance dEν/dν peaks at 160.23 GHz, in the microwave range of frequencies, corresponding to a photon energy of about 6.626×10 eV. Alternatively, if spectral radiance is defined as dEλ/dλ, then the peak wavelength is 1.063 mm (282 GHz, 1.168×10 eV photons). The glow is very nearly uniform in all directions, but the tiny residual variations show a very specific pattern, the same as that expected of a fairly uniformly distributed hot gas that has expanded to the current size of the universe. In particular, the spectral radiance at different angles of observation in the sky contains small anisotropies, or irregularities, which vary with the size of the region examined. They have been measured in detail, and match what would be expected if small thermal variations, generated by quantum fluctuations of matter in a very tiny space, had expanded to the size of the observable universe we see today. This is a very active field of study, with scientists seeking both better data (for example, the Planck spacecraft) and better interpretations of the initial conditions of expansion. Although many different processes might produce the general form of a black body spectrum, no model other than the Big Bang has yet explained the fluctuations. As a result, most cosmologists consider the Big Bang model of the universe to be the best explanation for the CMB.",
"title": "Importance of precise measurement"
},
{
"paragraph_id": 4,
"text": "The high degree of uniformity throughout the observable universe and its faint but measured anisotropy lend strong support for the Big Bang model in general and the ΛCDM (\"Lambda Cold Dark Matter\") model in particular. Moreover, the fluctuations are coherent on angular scales that are larger than the apparent cosmological horizon at recombination. Either such coherence is acausally fine-tuned, or cosmic inflation occurred.",
"title": "Importance of precise measurement"
},
{
"paragraph_id": 5,
"text": "Other than the temperature and polarization anisotropy, the CMB frequency spectrum is expected to feature tiny departures from the black-body law known as spectral distortions. These are also at the focus of an active research effort with the hope of a first measurement within the forthcoming decades, as they contain a wealth of information about the primordial universe and the formation of structures at late time.",
"title": "Importance of precise measurement"
},
{
"paragraph_id": 6,
"text": "The cosmic microwave background radiation is an emission of uniform, black body thermal energy coming from all parts of the sky. The radiation is isotropic to roughly one part in 100,000: the root mean square variations are only 18 μK, after subtracting out a dipole anisotropy from the Doppler shift of the background radiation. The latter is caused by the peculiar velocity of the Sun relative to the comoving cosmic rest frame as it moves at 369.82 ± 0.11 km/s towards the constellation Leo (galactic longitude 264.021 ± 0.011, galactic latitude 48.253 ± 0.005). The CMB dipole and aberration at higher multipoles have been measured, consistent with galactic motion.",
"title": "Features"
},
{
"paragraph_id": 7,
"text": "In the Big Bang model for the formation of the universe, inflationary cosmology predicts that after about 10 seconds the nascent universe underwent exponential growth that smoothed out nearly all irregularities. The remaining irregularities were caused by quantum fluctuations in the inflaton field that caused the inflation event. Long before the formation of stars and planets, the early universe was smaller, much hotter and, starting 10 seconds after the Big Bang, filled with a uniform glow from its white-hot fog of interacting plasma of photons, electrons, and baryons.",
"title": "Features"
},
{
"paragraph_id": 8,
"text": "As the universe expanded, adiabatic cooling caused the energy density of the plasma to decrease until it became favorable for electrons to combine with protons, forming hydrogen atoms. This recombination event happened when the temperature was around 3000 K or when the universe was approximately 379,000 years old. As photons did not interact with these electrically neutral atoms, the former began to travel freely through space, resulting in the decoupling of matter and radiation.",
"title": "Features"
},
{
"paragraph_id": 9,
"text": "The color temperature of the ensemble of decoupled photons has continued to diminish ever since; now down to 2.7260±0.0013 K, it will continue to drop as the universe expands. The intensity of the radiation corresponds to black-body radiation at 2.726 K because red-shifted black-body radiation is just like black-body radiation at a lower temperature. According to the Big Bang model, the radiation from the sky we measure today comes from a spherical surface called the surface of last scattering. This represents the set of locations in space at which the decoupling event is estimated to have occurred and at a point in time such that the photons from that distance have just reached observers. Most of the radiation energy in the universe is in the cosmic microwave background, making up a fraction of roughly 6×10 of the total density of the universe.",
"title": "Features"
},
{
"paragraph_id": 10,
"text": "Two of the greatest successes of the Big Bang theory are its prediction of the almost perfect black body spectrum and its detailed prediction of the anisotropies in the cosmic microwave background. The CMB spectrum has become the most precisely measured black body spectrum in nature.",
"title": "Features"
},
{
"paragraph_id": 11,
"text": "The energy density of the CMB is 0.260 eV/cm (4.17×10 J/m) which yields about 411 photons/cm.",
"title": "Features"
},
{
"paragraph_id": 12,
"text": "The cosmic microwave background was first predicted in 1948 by Ralph Alpher and Robert Herman, in close relation to work performed by Alpher's PhD advisor George Gamow. Alpher and Herman were able to estimate the temperature of the cosmic microwave background to be 5 K, though two years later they re-estimated it at 28 K. This high estimate was due to a misestimate of the Hubble constant by Alfred Behr, which could not be replicated and was later abandoned for the earlier estimate. Although there were several previous estimates of the temperature of space, these estimates had two flaws. First, they were measurements of the effective temperature of space and did not suggest that space was filled with a thermal Planck spectrum. Next, they depend on our being at a special spot at the edge of the Milky Way galaxy and they did not suggest the radiation is isotropic. The estimates would yield very different predictions if Earth happened to be located elsewhere in the universe.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "The 1948 results of Alpher and Herman were discussed in many physics settings through about 1955, when both left the Applied Physics Laboratory at Johns Hopkins University. The mainstream astronomical community, however, was not intrigued at the time by cosmology. Alpher and Herman's prediction was rediscovered by Yakov Zel'dovich in the early 1960s, and independently predicted by Robert Dicke at the same time. The first published recognition of the CMB radiation as a detectable phenomenon appeared in a brief paper by Soviet astrophysicists A. G. Doroshkevich and Igor Novikov, in the spring of 1964. In 1964, David Todd Wilkinson and Peter Roll, Dicke's colleagues at Princeton University, began constructing a Dicke radiometer to measure the cosmic microwave background. In 1964, Arno Penzias and Robert Woodrow Wilson at the Crawford Hill location of Bell Telephone Laboratories in nearby Holmdel Township, New Jersey had built a Dicke radiometer that they intended to use for radio astronomy and satellite communication experiments. On 20 May 1964 they made their first measurement clearly showing the presence of the microwave background, with their instrument having an excess 4.2K antenna temperature which they could not account for. After receiving a telephone call from Crawford Hill, Dicke said \"Boys, we've been scooped.\" A meeting between the Princeton and Crawford Hill groups determined that the antenna temperature was indeed due to the microwave background. Penzias and Wilson received the 1978 Nobel Prize in Physics for their discovery.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "The interpretation of the cosmic microwave background was a controversial issue in the 1960s with some proponents of the steady state theory arguing that the microwave background was the result of scattered starlight from distant galaxies. Using this model, and based on the study of narrow absorption line features in the spectra of stars, the astronomer Andrew McKellar wrote in 1941: \"It can be calculated that the 'rotational temperature' of interstellar space is 2 K.\" However, during the 1970s the consensus was established that the cosmic microwave background is a remnant of the big bang. This was largely because new measurements at a range of frequencies showed that the spectrum was a thermal, black body spectrum, a result that the steady state model was unable to reproduce.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "Harrison, Peebles, Yu and Zel'dovich realized that the early universe would require inhomogeneities at the level of 10 or 10. Rashid Sunyaev later calculated the observable imprint that these inhomogeneities would have on the cosmic microwave background. Increasingly stringent limits on the anisotropy of the cosmic microwave background were set by ground-based experiments during the 1980s. RELIKT-1, a Soviet cosmic microwave background anisotropy experiment on board the Prognoz 9 satellite (launched 1 July 1983) gave upper limits on the large-scale anisotropy. The NASA COBE mission clearly confirmed the primary anisotropy with the Differential Microwave Radiometer instrument, publishing their findings in 1992. The team received the Nobel Prize in physics for 2006 for this discovery.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "Inspired by the COBE results, a series of ground and balloon-based experiments measured cosmic microwave background anisotropies on smaller angular scales over the next decade. The primary goal of these experiments was to measure the scale of the first acoustic peak, which COBE did not have sufficient resolution to resolve. This peak corresponds to large scale density variations in the early universe that are created by gravitational instabilities, resulting in acoustical oscillations in the plasma. The first peak in the anisotropy was tentatively detected by the Toco experiment and the result was confirmed by the BOOMERanG and MAXIMA experiments. These measurements demonstrated that the geometry of the universe is approximately flat, rather than curved. They ruled out cosmic strings as a major component of cosmic structure formation and suggested cosmic inflation was the right theory of structure formation.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "The second peak was tentatively detected by several experiments before being definitively detected by WMAP, which has tentatively detected the third peak. As of 2010, several experiments to improve measurements of the polarization and the microwave background on small angular scales are ongoing. These include DASI, WMAP, BOOMERanG, QUaD, Planck spacecraft, Atacama Cosmology Telescope, South Pole Telescope and the QUIET telescope.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "The cosmic microwave background radiation and the cosmological redshift-distance relation are together regarded as the best available evidence for the Big Bang event. Measurements of the CMB have made the inflationary Big Bang model the Standard Cosmological Model. The discovery of the CMB in the mid-1960s curtailed interest in alternatives such as the steady state theory.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 19,
"text": "In the late 1940s Alpher and Herman reasoned that if there was a Big Bang, the expansion of the universe would have stretched the high-energy radiation of the very early universe into the microwave region of the electromagnetic spectrum, and down to a temperature of about 5 K. They were slightly off with their estimate, but they had the right idea. They predicted the CMB. It took another 15 years for Penzias and Wilson to discover that the microwave background was actually there.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 20,
"text": "According to standard cosmology, the CMB gives a snapshot of the hot early universe at the point in time when the temperature dropped enough to allow electrons and protons to form hydrogen atoms. This event made the universe nearly transparent to radiation because light was no longer being scattered off free electrons. When this occurred some 380,000 years after the Big Bang, the temperature of the universe was about 3,000 K. This corresponds to an ambient energy of about 0.26 eV, which is much less than the 13.6 eV ionization energy of hydrogen. This epoch is generally known as the \"time of last scattering\" or the period of recombination or decoupling.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 21,
"text": "Since decoupling, the color temperature of the background radiation has dropped by an average factor of 1,089 due to the expansion of the universe. As the universe expands, the CMB photons are redshifted, causing them to decrease in energy. The color temperature of this radiation stays inversely proportional to a parameter that describes the relative expansion of the universe over time, known as the scale length. The color temperature Tr of the CMB as a function of redshift, z, can be shown to be proportional to the color temperature of the CMB as observed in the present day (2.725 K or 0.2348 meV):",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 22,
"text": "For details about the reasoning that the radiation is evidence for the Big Bang, see Cosmic background radiation of the Big Bang.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 23,
"text": "The anisotropy, or directional dependency, of the cosmic microwave background is divided into two types: primary anisotropy, due to effects that occur at the surface of last scattering and before; and secondary anisotropy, due to effects such as interactions of the background radiation with intervening hot gas or gravitational potentials, which occur between the last scattering surface and the observer.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 24,
"text": "The structure of the cosmic microwave background anisotropies is principally determined by two effects: acoustic oscillations and diffusion damping (also called collisionless damping or Silk damping). The acoustic oscillations arise because of a conflict in the photon–baryon plasma in the early universe. The pressure of the photons tends to erase anisotropies, whereas the gravitational attraction of the baryons, moving at speeds much slower than light, makes them tend to collapse to form overdensities. These two effects compete to create acoustic oscillations, which give the microwave background its characteristic peak structure. The peaks correspond, roughly, to resonances in which the photons decouple when a particular mode is at its peak amplitude.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 25,
"text": "The peaks contain interesting physical signatures. The angular scale of the first peak determines the curvature of the universe (but not the topology of the universe). The next peak—ratio of the odd peaks to the even peaks—determines the reduced baryon density. The third peak can be used to get information about the dark-matter density.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 26,
"text": "The locations of the peaks give important information about the nature of the primordial density perturbations. There are two fundamental types of density perturbations called adiabatic and isocurvature. A general density perturbation is a mixture of both, and different theories that purport to explain the primordial density perturbation spectrum predict different mixtures.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 27,
"text": "The CMB spectrum can distinguish between these two because these two types of perturbations produce different peak locations. Isocurvature density perturbations produce a series of peaks whose angular scales (ℓ values of the peaks) are roughly in the ratio 1 : 3 : 5 : ..., while adiabatic density perturbations produce peaks whose locations are in the ratio 1 : 2 : 3 : ... Observations are consistent with the primordial density perturbations being entirely adiabatic, providing key support for inflation, and ruling out many models of structure formation involving, for example, cosmic strings.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 28,
"text": "Collisionless damping is caused by two effects, when the treatment of the primordial plasma as fluid begins to break down:",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 29,
"text": "These effects contribute about equally to the suppression of anisotropies at small scales and give rise to the characteristic exponential damping tail seen in the very small angular scale anisotropies.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 30,
"text": "The depth of the LSS refers to the fact that the decoupling of the photons and baryons does not happen instantaneously, but instead requires an appreciable fraction of the age of the universe up to that era. One method of quantifying how long this process took uses the photon visibility function (PVF). This function is defined so that, denoting the PVF by P(t), the probability that a CMB photon last scattered between time t and t + dt is given by P(t) dt.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 31,
"text": "The maximum of the PVF (the time when it is most likely that a given CMB photon last scattered) is known quite precisely. The first-year WMAP results put the time at which P(t) has a maximum as 372,000 years. This is often taken as the \"time\" at which the CMB formed. However, to figure out how long it took the photons and baryons to decouple, we need a measure of the width of the PVF. The WMAP team finds that the PVF is greater than half of its maximal value (the \"full width at half maximum\", or FWHM) over an interval of 115,000 years. By this measure, decoupling took place over roughly 115,000 years, and when it was complete, the universe was roughly 487,000 years old.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 32,
"text": "Since the CMB came into existence, it has apparently been modified by several subsequent physical processes, which are collectively referred to as late-time anisotropy, or secondary anisotropy. When the CMB photons became free to travel unimpeded, ordinary matter in the universe was mostly in the form of neutral hydrogen and helium atoms. However, observations of galaxies today seem to indicate that most of the volume of the intergalactic medium (IGM) consists of ionized material (since there are few absorption lines due to hydrogen atoms). This implies a period of reionization during which some of the material of the universe was broken into hydrogen ions.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 33,
"text": "The CMB photons are scattered by free charges such as electrons that are not bound in atoms. In an ionized universe, such charged particles have been liberated from neutral atoms by ionizing (ultraviolet) radiation. Today these free charges are at sufficiently low density in most of the volume of the universe that they do not measurably affect the CMB. However, if the IGM was ionized at very early times when the universe was still denser, then there are two main effects on the CMB:",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 34,
"text": "Both of these effects have been observed by the WMAP spacecraft, providing evidence that the universe was ionized at very early times, at a redshift more than 17. The detailed provenance of this early ionizing radiation is still a matter of scientific debate. It may have included starlight from the very first population of stars (population III stars), supernovae when these first stars reached the end of their lives, or the ionizing radiation produced by the accretion disks of massive black holes.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 35,
"text": "The time following the emission of the cosmic microwave background—and before the observation of the first stars—is semi-humorously referred to by cosmologists as the Dark Age, and is a period which is under intense study by astronomers (see 21 centimeter radiation).",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 36,
"text": "Two other effects which occurred between reionization and our observations of the cosmic microwave background, and which appear to cause anisotropies, are the Sunyaev–Zeldovich effect, where a cloud of high-energy electrons scatters the radiation, transferring some of its energy to the CMB photons, and the Sachs–Wolfe effect, which causes photons from the Cosmic Microwave Background to be gravitationally redshifted or blueshifted due to changing gravitational fields.",
"title": "Relationship to the Big Bang"
},
{
"paragraph_id": 37,
"text": "The cosmic microwave background is polarized at the level of a few microkelvin. There are two types of polarization, called E-modes and B-modes. This is in analogy to electrostatics, in which the electric field (E-field) has a vanishing curl and the magnetic field (B-field) has a vanishing divergence. The E-modes arise naturally from Thomson scattering in a heterogeneous plasma. The B-modes are not produced by standard scalar type perturbations. Instead they can be created by two mechanisms: the first one is by gravitational lensing of E-modes, which has been measured by the South Pole Telescope in 2013; the second one is from gravitational waves arising from cosmic inflation. Detecting the B-modes is extremely difficult, particularly as the degree of foreground contamination is unknown, and the weak gravitational lensing signal mixes the relatively strong E-mode signal with the B-mode signal.",
"title": "Polarization"
},
{
"paragraph_id": 38,
"text": "E-modes were first seen in 2002 by the Degree Angular Scale Interferometer (DASI).",
"title": "Polarization"
},
{
"paragraph_id": 39,
"text": "Cosmologists predict two types of B-modes, the first generated during cosmic inflation shortly after the big bang, and the second generated by gravitational lensing at later times.",
"title": "Polarization"
},
{
"paragraph_id": 40,
"text": "Primordial gravitational waves are gravitational waves that could be observed in the polarisation of the cosmic microwave background and having their origin in the early universe. Models of cosmic inflation predict that such gravitational waves should appear; thus, their detection would support the theory of inflation, and their strength can confirm and exclude different models of inflation. It is the result of three things: inflationary expansion, reheating after inflation, and turbulent fluid mixing of matter and radiation.",
"title": "Polarization"
},
{
"paragraph_id": 41,
"text": "On 17 March 2014, it was announced that the BICEP2 instrument had detected the first type of B-modes, consistent with inflation and gravitational waves in the early universe at the level of r = 0.20+0.07−0.05, which is the amount of power present in gravitational waves compared to the amount of power present in other scalar density perturbations in the very early universe. Had this been confirmed it would have provided strong evidence for cosmic inflation and the Big Bang and against the ekpyrotic model of Paul Steinhardt and Neil Turok. However, on 19 June 2014, considerably lowered confidence in confirming the findings was reported and on 19 September 2014, new results of the Planck experiment reported that the results of BICEP2 can be fully attributed to cosmic dust.",
"title": "Polarization"
},
{
"paragraph_id": 42,
"text": "The second type of B-modes was discovered in 2013 using the South Pole Telescope with help from the Herschel Space Observatory. In October 2014, a measurement of the B-mode polarization at 150 GHz was published by the POLARBEAR experiment. Compared to BICEP2, POLARBEAR focuses on a smaller patch of the sky and is less susceptible to dust effects. The team reported that POLARBEAR's measured B-mode polarization was of cosmological origin (and not just due to dust) at a 97.2% confidence level.",
"title": "Polarization"
},
{
"paragraph_id": 43,
"text": "Subsequent to the discovery of the CMB, hundreds of cosmic microwave background experiments have been conducted to measure and characterize the signatures of the radiation. The most famous experiment is probably the NASA Cosmic Background Explorer (COBE) satellite that orbited in 1989–1996 and which detected and quantified the large scale anisotropies at the limit of its detection capabilities. Inspired by the initial COBE results of an extremely isotropic and homogeneous background, a series of ground- and balloon-based experiments quantified CMB anisotropies on smaller angular scales over the next decade. The primary goal of these experiments was to measure the angular scale of the first acoustic peak, for which COBE did not have sufficient resolution. These measurements were able to rule out cosmic strings as the leading theory of cosmic structure formation, and suggested cosmic inflation was the right theory.",
"title": "Microwave background observations"
},
{
"paragraph_id": 44,
"text": "During the 1990s, the first peak was measured with increasing sensitivity and by 2000 the BOOMERanG experiment reported that the highest power fluctuations occur at scales of approximately one degree. Together with other cosmological data, these results implied that the geometry of the universe is flat. A number of ground-based interferometers provided measurements of the fluctuations with higher accuracy over the next three years, including the Very Small Array, Degree Angular Scale Interferometer (DASI), and the Cosmic Background Imager (CBI). DASI made the first detection of the polarization of the CMB and the CBI provided the first E-mode polarization spectrum with compelling evidence that it is out of phase with the T-mode spectrum.",
"title": "Microwave background observations"
},
{
"paragraph_id": 45,
"text": "In June 2001, NASA launched a second CMB space mission, WMAP, to make much more precise measurements of the large scale anisotropies over the full sky. WMAP used symmetric, rapid-multi-modulated scanning, rapid switching radiometers to minimize non-sky signal noise. The first results from this mission, disclosed in 2003, were detailed measurements of the angular power spectrum at a scale of less than one degree, tightly constraining various cosmological parameters. The results are broadly consistent with those expected from cosmic inflation as well as various other competing theories, and are available in detail at NASA's data bank for Cosmic Microwave Background (CMB) (see links below). Although WMAP provided very accurate measurements of the large scale angular fluctuations in the CMB (structures about as broad in the sky as the moon), it did not have the angular resolution to measure the smaller scale fluctuations which had been observed by former ground-based interferometers.",
"title": "Microwave background observations"
},
{
"paragraph_id": 46,
"text": "A third space mission, the ESA (European Space Agency) Planck Surveyor, was launched in May 2009 and performed an even more detailed investigation until it was shut down in October 2013. Planck employed both HEMT radiometers and bolometer technology and measured the CMB at a smaller scale than WMAP. Its detectors were trialled in the Antarctic Viper telescope as ACBAR (Arcminute Cosmology Bolometer Array Receiver) experiment—which has produced the most precise measurements at small angular scales to date—and in the Archeops balloon telescope.",
"title": "Microwave background observations"
},
{
"paragraph_id": 47,
"text": "On 21 March 2013, the European-led research team behind the Planck cosmology probe released the mission's all-sky map (565x318 jpeg, 3600x1800 jpeg) of the cosmic microwave background. The map suggests the universe is slightly older than researchers expected. According to the map, subtle fluctuations in temperature were imprinted on the deep sky when the cosmos was about 370000 years old. The imprint reflects ripples that arose as early, in the existence of the universe, as the first nonillionth of a second. Apparently, these ripples gave rise to the present vast cosmic web of galaxy clusters and dark matter. Based on the 2013 data, the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. On 5 February 2015, new data was released by the Planck mission, according to which the age of the universe is 13.799±0.021 billion years old and the Hubble constant was measured to be 67.74±0.46 (km/s)/Mpc.",
"title": "Microwave background observations"
},
{
"paragraph_id": 48,
"text": "Additional ground-based instruments such as the South Pole Telescope in Antarctica and the proposed Clover Project, Atacama Cosmology Telescope and the QUIET telescope in Chile will provide additional data not available from satellite observations, possibly including the B-mode polarization.",
"title": "Microwave background observations"
},
{
"paragraph_id": 49,
"text": "Raw CMBR data, even from space vehicles such as WMAP or Planck, contain foreground effects that completely obscure the fine-scale structure of the cosmic microwave background. The fine-scale structure is superimposed on the raw CMBR data but is too small to be seen at the scale of the raw data. The most prominent of the foreground effects is the dipole anisotropy caused by the Sun's motion relative to the CMBR background. The dipole anisotropy and others due to Earth's annual motion relative to the Sun and numerous microwave sources in the galactic plane and elsewhere must be subtracted out to reveal the extremely tiny variations characterizing the fine-scale structure of the CMBR background.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 50,
"text": "The detailed analysis of CMBR data to produce maps, an angular power spectrum, and ultimately cosmological parameters is a complicated, computationally difficult problem. Although computing a power spectrum from a map is in principle a simple Fourier transform, decomposing the map of the sky into spherical harmonics,",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 51,
"text": "where the a ℓ m {\\displaystyle a_{\\ell m}} term measures the mean temperature and Y ( θ , φ ) {\\displaystyle Y(\\theta ,\\varphi )} term accounts for the fluctuation, where the Y ℓ m ( θ , φ ) {\\displaystyle Y_{\\ell m}(\\theta ,\\varphi )} refers to a spherical harmonic, and ℓ is the multipole number while m is the azimuthal number.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 52,
"text": "By applying the angular correlation function, the sum can be reduced to an expression that only involves ℓ and power spectrum term C ≡ ⟨ | a ℓ m | 2 ⟩ . {\\displaystyle C\\equiv \\langle |a_{\\ell m}|^{2}\\rangle .} The angled brackets indicate the average with respect to all observers in the universe; since the universe is homogeneous and isotropic, therefore there is an absence of preferred observing direction. Thus, C is independent of m. Different choices of ℓ correspond to multipole moments of CMB.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 53,
"text": "In practice it is hard to take the effects of noise and foreground sources into account. In particular, these foregrounds are dominated by galactic emissions such as Bremsstrahlung, synchrotron, and dust that emit in the microwave band; in practice, the galaxy has to be removed, resulting in a CMB map that is not a full-sky map. In addition, point sources like galaxies and clusters represent another source of foreground which must be removed so as not to distort the short scale structure of the CMB power spectrum.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 54,
"text": "Constraints on many cosmological parameters can be obtained from their effects on the power spectrum, and results are often calculated using Markov chain Monte Carlo sampling techniques.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 55,
"text": "When ℓ = 0, the Y ( θ , φ ) {\\displaystyle Y(\\theta ,\\varphi )} term reduced to 1, and what we have left here is just the mean temperature of the CMB. This \"mean\" is called CMB monopole, and it is observed to have an average temperature of about Tγ = 2.7255±0.0006 K with one standard deviation confidence. The accuracy of this mean temperature may be impaired by the diverse measurements done by different mapping measurements. Such measurements demand absolute temperature devices, such as the FIRAS instrument on the COBE satellite. The measured kTγ is equivalent to 0.234 meV or 4.6×10 mec. The photon number density of a blackbody having such temperature is n γ = 2 ζ ( 3 ) π 2 T γ 3 ≈ 411 c m − 3 {\\textstyle n_{\\gamma }={\\frac {2\\zeta (3)}{\\pi ^{2}}}T_{\\gamma }^{3}\\approx \\mathrm {411\\,cm^{-3}} } . Its energy density is ρ γ = π 2 15 T γ 4 ≈ 4.64 × 10 − 34 g ⋅ c m − 3 ≈ 0.260 e V ⋅ c m − 3 {\\textstyle \\rho _{\\gamma }={\\frac {\\pi ^{2}}{15}}T_{\\gamma }^{4}\\approx \\mathrm {4.64\\times 10^{-34}\\,g{\\cdot }cm^{-3}} \\approx \\mathrm {0.260\\,eV{\\cdot }cm^{-3}} } , and the ratio to the critical density is Ωγ = 5.38 × 10.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 56,
"text": "CMB dipole represents the largest anisotropy, which is in the first spherical harmonic (ℓ = 1). When ℓ = 1, the Y ( θ , φ ) {\\displaystyle Y(\\theta ,\\varphi )} term reduces to one cosine function and thus encodes amplitude fluctuation. The amplitude of CMB dipole is around 3.3621±0.0010 mK. Since the universe is presumed to be homogeneous and isotropic, an observer should see the blackbody spectrum with temperature T at every point in the sky. The spectrum of the dipole has been confirmed to be the differential of a blackbody spectrum.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 57,
"text": "CMB dipole is frame-dependent. The CMB dipole moment could also be interpreted as the peculiar motion of the Earth toward the CMB. Its amplitude depends on the time due to the Earth's orbit about the barycenter of the solar system. This enables us to add a time-dependent term to the dipole expression. The modulation of this term is 1 year, which fits the observation done by COBE FIRAS. The dipole moment does not encode any primordial information.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 58,
"text": "From the CMB data, it is seen that the Sun appears to be moving at 368±2 km/s relative to the reference frame of the CMB (also called the CMB rest frame, or the frame of reference in which there is no motion through the CMB). The Local Group — the galaxy group that includes our own Milky Way galaxy — appears to be moving at 627±22 km/s in the direction of galactic longitude ℓ = 276°±3°, b = 30°±3°. This motion results in an anisotropy of the data (CMB appearing slightly warmer in the direction of movement than in the opposite direction). The standard interpretation of this temperature variation is a simple velocity redshift and blueshift due to motion relative to the CMB, but alternative cosmological models can explain some fraction of the observed dipole temperature distribution in the CMB.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 59,
"text": "A 2021 study of Wide-field Infrared Survey Explorer questions the kinematic interpretation of CMB anisotropy with high statistical confidence.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 60,
"text": "The temperature variation in the CMB temperature maps at higher multipoles, or ℓ ≥ 2, is considered to be the result of perturbations of the density in the early Universe, before the recombination epoch. Before recombination, the Universe consisted of a hot, dense plasma of electrons and baryons. In such a hot dense environment, electrons and protons could not form any neutral atoms. The baryons in such early Universe remained highly ionized and so were tightly coupled with photons through the effect of Thompson scattering. These phenomena caused the pressure and gravitational effects to act against each other, and triggered fluctuations in the photon-baryon plasma. Quickly after the recombination epoch, the rapid expansion of the universe caused the plasma to cool down and these fluctuations are \"frozen into\" the CMB maps we observe today. The said procedure happened at a redshift of around z ⋍ 1100.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 61,
"text": "With the increasingly precise data provided by WMAP, there have been a number of claims that the CMB exhibits anomalies, such as very large scale anisotropies, anomalous alignments, and non-Gaussian distributions. The most longstanding of these is the low-ℓ multipole controversy. Even in the COBE map, it was observed that the quadrupole (ℓ = 2, spherical harmonic) has a low amplitude compared to the predictions of the Big Bang. In particular, the quadrupole and octupole (ℓ = 3) modes appear to have an unexplained alignment with each other and with both the ecliptic plane and equinoxes. A number of groups have suggested that this could be the signature of new physics at the greatest observable scales; other groups suspect systematic errors in the data.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 62,
"text": "Ultimately, due to the foregrounds and the cosmic variance problem, the greatest modes will never be as well measured as the small angular scale modes. The analyses were performed on two maps that have had the foregrounds removed as far as possible: the \"internal linear combination\" map of the WMAP collaboration and a similar map prepared by Max Tegmark and others. Later analyses have pointed out that these are the modes most susceptible to foreground contamination from synchrotron, dust, and Bremsstrahlung emission, and from experimental uncertainty in the monopole and dipole.",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 63,
"text": "A full Bayesian analysis of the WMAP power spectrum demonstrates that the quadrupole prediction of Lambda-CDM cosmology is consistent with the data at the 10% level and that the observed octupole is not remarkable. Carefully accounting for the procedure used to remove the foregrounds from the full sky map further reduces the significance of the alignment by ~5%. Recent observations with the Planck telescope, which is very much more sensitive than WMAP and has a larger angular resolution, record the same anomaly, and so instrumental error (but not foreground contamination) appears to be ruled out. Coincidence is a possible explanation, chief scientist from WMAP, Charles L. Bennett suggested coincidence and human psychology were involved, \"I do think there is a bit of a psychological effect; people want to find unusual things.\"",
"title": "Data reduction and analysis"
},
{
"paragraph_id": 64,
"text": "Assuming the universe keeps expanding and it does not suffer a Big Crunch, a Big Rip, or another similar fate, the cosmic microwave background will continue redshifting until it will no longer be detectable, and will be superseded first by the one produced by starlight, and perhaps, later by the background radiation fields of processes that may take place in the far future of the universe such as proton decay, evaporation of black holes, and positronium decay.",
"title": "Future evolution"
}
] | The cosmic microwave background is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dark. However, a sufficiently sensitive radio telescope detects a faint background glow that is almost uniform and is not associated with any star, galaxy, or other object. This glow is strongest in the microwave region of the radio spectrum. The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s. CMB is landmark evidence of the Big Bang theory for the origin of the universe. In the Big Bang cosmological models, during the earliest periods, the universe was filled with an opaque fog of dense, hot plasma of sub-atomic particles. As the universe expanded, this plasma cooled to the point where protons and electrons combined to form neutral atoms of mostly hydrogen. Unlike the plasma, these atoms could not scatter thermal radiation by Thomson scattering, and so the universe became transparent. Known as the recombination epoch, this decoupling event released photons to travel freely through space – sometimes referred to as relic radiation. However, the photons have grown less energetic due to the cosmological redshift associated with the expansion of the universe. The surface of last scattering refers to a shell at the right distance in space so photons are now received that were originally emitted at the time of decoupling. The CMB is not completely smooth and uniform, showing a faint anisotropy that can be mapped by sensitive detectors. Ground and space-based experiments such as COBE and WMAP have been used to measure these temperature inhomogeneities. The anisotropy structure is determined by various interactions of matter and photons up to the point of decoupling, which results in a characteristic lumpy pattern that varies with angular scale. The distribution of the anisotropy across the sky has frequency components that can be represented by a power spectrum displaying a sequence of peaks and valleys. The peak values of this spectrum hold important information about the physical properties of the early universe: the first peak determines the overall curvature of the universe, while the second and third peak detail the density of normal matter and so-called dark matter, respectively. Extracting fine details from the CMB data can be challenging, since the emission has undergone modification by foreground features such as galaxy clusters. | 2001-10-04T18:58:06Z | 2023-12-23T14:35:57Z | [
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7,378 | Comparative law | Comparative law is the study of differences and similarities between the law (legal systems) of different countries. More specifically, it involves the study of the different legal "systems" (or "families") in existence in the world, including the common law, the civil law, socialist law, Canon law, Jewish Law, Islamic law, Hindu law, and Chinese law. It includes the description and analysis of foreign legal systems, even where no explicit comparison is undertaken. The importance of comparative law has increased enormously in the present age of internationalism, economic globalization, and democratization.
The origins of modern Comparative Law can be traced back to Gottfried Wilhelm Leibniz in 1667 in his Latin-language book Nova Methodus Discendae Docendaeque Iurisprudentiae (New Methods of Studying and Teaching Jurisprudence). Chapter 7 (Presentation of Law as the Project for all Nations, Lands and Times) introduces the idea of classifying Legal Systems into several families. A few years later, Leibniz introduced an idea of Language families.
Although every Legal System is unique, Comparative Law through studies of their similarities and differences allows for classification of Legal Systems, wherein Law Families is the basic level of the classification. The main differences between Law Families are found in the source(s) of Law, the role of court precedents, the origin and development of the Legal System. Montesquieu is generally regarded as an early founding figure of comparative law. His comparative approach is obvious in the following excerpt from Chapter III of Book I of his masterpiece, De l'esprit des lois (1748; first translated by Thomas Nugent, 1750):
[T]he political and civil laws of each nation ... should be adapted in such a manner to the people for whom they are framed that it should be a great chance if those of one nation suit another.
They should be in relation to the nature and principle of each government: whether they form it, as may be said of politic laws; or whether they support it, as in the case of civil institutions.
They should be in relation to the climate of each country, to the quality of its soil, to its situation and extent, to the principal occupation of the natives, whether husbandmen, huntsmen, or shepherds: they should have relation to the degree of liberty which the constitution will bear; to the religion of the inhabitants, to their inclinations, riches, numbers, commerce, manners, and customs.
Also, in Chapter XI (entitled 'How to compare two different Systems of Laws') of Book XXIX, discussing the French and English systems for punishment of false witnesses, he advises that "to determine which of those systems is most agreeable to reason, we must take them each as a whole and compare them in their entirety." Yet another place where Montesquieu's comparative approach is evident is the following, from Chapter XIII of Book XXIX:
As the civil laws depend on the political institutions, because they are made for the same society, whenever there is a design of adopting the civil law of another nation, it would be proper to examine beforehand whether they have both the same institutions and the same political law.
The modern founding figure of comparative and anthropological jurisprudence was Sir Henry Maine, a British jurist and legal historian. In his 1861 work Ancient Law: Its Connection with the Early History of Society, and Its Relation to Modern Ideas, he set out his views on the development of legal institutions in primitive societies and engaged in a comparative discussion of Eastern and Western legal traditions. This work placed comparative law in its historical context and was widely read and influential.
The first university course on the subject was established at the University of Oxford in 1869, with Maine taking up the position of professor.
Comparative law in the US was brought by a legal scholar fleeing persecution in Germany, Rudolf Schlesinger. Schlesinger eventually became professor of comparative law at Cornell Law School helping to spread the discipline throughout the US.
Comparative law is an academic discipline that involves the study of legal systems, including their constitutive elements and how they differ, and how their elements combine into a system.
Several disciplines have developed as separate branches of comparative law, including comparative constitutional law, comparative administrative law, comparative civil law (in the sense of the law of torts, contracts, property and obligations), comparative commercial law (in the sense of business organisations and trade), and comparative criminal law. Studies of these specific areas may be viewed as micro- or macro-comparative legal analysis, i.e. detailed comparisons of two countries, or broad-ranging studies of several countries. Comparative civil law studies, for instance, show how the law of private relations is organised, interpreted and used in different systems or countries. The purposes of comparative law are:
Comparative law is different from general jurisprudence (i.e. legal theory) and from public and private international law. However, it helps inform all of these areas of normativity.
For example, comparative law can help international legal institutions, such as those of the United Nations System, in analyzing the laws of different countries regarding their treaty obligations. Comparative law would be applicable to private international law when developing an approach to interpretation in a conflicts analysis. Comparative law may contribute to legal theory by creating categories and concepts of general application. Comparative law may also provide insights into the question of legal transplants, i.e. the transplanting of law and legal institutions from one system to another. The notion of legal transplants was coined by Alan Watson, one of the world's renowned legal scholars specializing in comparative law.
Also, the usefulness of comparative law for sociology of law and law and economics (and vice versa) is very large. The comparative study of the various legal systems may show how different legal regulations for the same problem function in practice. Conversely, sociology of law and law & economics may help comparative law answer questions, such as:
René David proposed the classification of legal systems, according to the different ideology inspiring each one, into five groups or families:
Especially with respect to the aggregating by David of the Civil and Common laws into a single family, David argued that the antithesis between the Common law and Civil law systems, is of a technical rather than of an ideological nature. Of a different kind is, for instance, the antithesis between, say, Italian and American laws, and of a different kind than between the Soviet, Muslim, Hindu, or Chinese laws. According to David, the Civil law legal systems included those countries where legal science was formulated according to Roman law, whereas Common law countries are those dominated by judge-made law. The characteristics that he believed uniquely differentiate the Western legal family from the other four are:
Arminjon, Nolde, and Wolff believed that, for purposes of classifying the (then) contemporary legal systems of the world, it was required that those systems per se get studied, irrespective of external factors, such as geographical ones. They proposed the classification of legal system into seven groups, or so-called 'families', in particular the:
Konrad Zweigert and Hein Kötz propose a different, multidimensional methodology for categorizing laws, i.e. for ordering families of laws. They maintain that, to determine such families, five criteria should be taken into account, in particular: the historical background, the characteristic way of thought, the different institutions, the recognized sources of law, and the dominant ideology. Using the aforementioned criteria, they classify the legal systems of the world into six families:
Up to the second German edition of their introduction to comparative law, Zweigert and Kötz also used to mention Soviet or socialist law as another family of laws.
H. Patrick Glenn proposed the classification of legal systems places national laws in the broader context of major legal tradition: | [
{
"paragraph_id": 0,
"text": "Comparative law is the study of differences and similarities between the law (legal systems) of different countries. More specifically, it involves the study of the different legal \"systems\" (or \"families\") in existence in the world, including the common law, the civil law, socialist law, Canon law, Jewish Law, Islamic law, Hindu law, and Chinese law. It includes the description and analysis of foreign legal systems, even where no explicit comparison is undertaken. The importance of comparative law has increased enormously in the present age of internationalism, economic globalization, and democratization.",
"title": ""
},
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"paragraph_id": 1,
"text": "The origins of modern Comparative Law can be traced back to Gottfried Wilhelm Leibniz in 1667 in his Latin-language book Nova Methodus Discendae Docendaeque Iurisprudentiae (New Methods of Studying and Teaching Jurisprudence). Chapter 7 (Presentation of Law as the Project for all Nations, Lands and Times) introduces the idea of classifying Legal Systems into several families. A few years later, Leibniz introduced an idea of Language families.",
"title": "History"
},
{
"paragraph_id": 2,
"text": "Although every Legal System is unique, Comparative Law through studies of their similarities and differences allows for classification of Legal Systems, wherein Law Families is the basic level of the classification. The main differences between Law Families are found in the source(s) of Law, the role of court precedents, the origin and development of the Legal System. Montesquieu is generally regarded as an early founding figure of comparative law. His comparative approach is obvious in the following excerpt from Chapter III of Book I of his masterpiece, De l'esprit des lois (1748; first translated by Thomas Nugent, 1750):",
"title": "History"
},
{
"paragraph_id": 3,
"text": "[T]he political and civil laws of each nation ... should be adapted in such a manner to the people for whom they are framed that it should be a great chance if those of one nation suit another.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "They should be in relation to the nature and principle of each government: whether they form it, as may be said of politic laws; or whether they support it, as in the case of civil institutions.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "They should be in relation to the climate of each country, to the quality of its soil, to its situation and extent, to the principal occupation of the natives, whether husbandmen, huntsmen, or shepherds: they should have relation to the degree of liberty which the constitution will bear; to the religion of the inhabitants, to their inclinations, riches, numbers, commerce, manners, and customs.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Also, in Chapter XI (entitled 'How to compare two different Systems of Laws') of Book XXIX, discussing the French and English systems for punishment of false witnesses, he advises that \"to determine which of those systems is most agreeable to reason, we must take them each as a whole and compare them in their entirety.\" Yet another place where Montesquieu's comparative approach is evident is the following, from Chapter XIII of Book XXIX:",
"title": "History"
},
{
"paragraph_id": 7,
"text": "As the civil laws depend on the political institutions, because they are made for the same society, whenever there is a design of adopting the civil law of another nation, it would be proper to examine beforehand whether they have both the same institutions and the same political law.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "The modern founding figure of comparative and anthropological jurisprudence was Sir Henry Maine, a British jurist and legal historian. In his 1861 work Ancient Law: Its Connection with the Early History of Society, and Its Relation to Modern Ideas, he set out his views on the development of legal institutions in primitive societies and engaged in a comparative discussion of Eastern and Western legal traditions. This work placed comparative law in its historical context and was widely read and influential.",
"title": "History"
},
{
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"text": "The first university course on the subject was established at the University of Oxford in 1869, with Maine taking up the position of professor.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "Comparative law in the US was brought by a legal scholar fleeing persecution in Germany, Rudolf Schlesinger. Schlesinger eventually became professor of comparative law at Cornell Law School helping to spread the discipline throughout the US.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "Comparative law is an academic discipline that involves the study of legal systems, including their constitutive elements and how they differ, and how their elements combine into a system.",
"title": "Purpose"
},
{
"paragraph_id": 12,
"text": "Several disciplines have developed as separate branches of comparative law, including comparative constitutional law, comparative administrative law, comparative civil law (in the sense of the law of torts, contracts, property and obligations), comparative commercial law (in the sense of business organisations and trade), and comparative criminal law. Studies of these specific areas may be viewed as micro- or macro-comparative legal analysis, i.e. detailed comparisons of two countries, or broad-ranging studies of several countries. Comparative civil law studies, for instance, show how the law of private relations is organised, interpreted and used in different systems or countries. The purposes of comparative law are:",
"title": "Purpose"
},
{
"paragraph_id": 13,
"text": "Comparative law is different from general jurisprudence (i.e. legal theory) and from public and private international law. However, it helps inform all of these areas of normativity.",
"title": "Relationship with other legal subjects"
},
{
"paragraph_id": 14,
"text": "For example, comparative law can help international legal institutions, such as those of the United Nations System, in analyzing the laws of different countries regarding their treaty obligations. Comparative law would be applicable to private international law when developing an approach to interpretation in a conflicts analysis. Comparative law may contribute to legal theory by creating categories and concepts of general application. Comparative law may also provide insights into the question of legal transplants, i.e. the transplanting of law and legal institutions from one system to another. The notion of legal transplants was coined by Alan Watson, one of the world's renowned legal scholars specializing in comparative law.",
"title": "Relationship with other legal subjects"
},
{
"paragraph_id": 15,
"text": "Also, the usefulness of comparative law for sociology of law and law and economics (and vice versa) is very large. The comparative study of the various legal systems may show how different legal regulations for the same problem function in practice. Conversely, sociology of law and law & economics may help comparative law answer questions, such as:",
"title": "Relationship with other legal subjects"
},
{
"paragraph_id": 16,
"text": "René David proposed the classification of legal systems, according to the different ideology inspiring each one, into five groups or families:",
"title": "Classifications of legal systems"
},
{
"paragraph_id": 17,
"text": "Especially with respect to the aggregating by David of the Civil and Common laws into a single family, David argued that the antithesis between the Common law and Civil law systems, is of a technical rather than of an ideological nature. Of a different kind is, for instance, the antithesis between, say, Italian and American laws, and of a different kind than between the Soviet, Muslim, Hindu, or Chinese laws. According to David, the Civil law legal systems included those countries where legal science was formulated according to Roman law, whereas Common law countries are those dominated by judge-made law. The characteristics that he believed uniquely differentiate the Western legal family from the other four are:",
"title": "Classifications of legal systems"
},
{
"paragraph_id": 18,
"text": "Arminjon, Nolde, and Wolff believed that, for purposes of classifying the (then) contemporary legal systems of the world, it was required that those systems per se get studied, irrespective of external factors, such as geographical ones. They proposed the classification of legal system into seven groups, or so-called 'families', in particular the:",
"title": "Classifications of legal systems"
},
{
"paragraph_id": 19,
"text": "Konrad Zweigert and Hein Kötz propose a different, multidimensional methodology for categorizing laws, i.e. for ordering families of laws. They maintain that, to determine such families, five criteria should be taken into account, in particular: the historical background, the characteristic way of thought, the different institutions, the recognized sources of law, and the dominant ideology. Using the aforementioned criteria, they classify the legal systems of the world into six families:",
"title": "Classifications of legal systems"
},
{
"paragraph_id": 20,
"text": "Up to the second German edition of their introduction to comparative law, Zweigert and Kötz also used to mention Soviet or socialist law as another family of laws.",
"title": "Classifications of legal systems"
},
{
"paragraph_id": 21,
"text": "H. Patrick Glenn proposed the classification of legal systems places national laws in the broader context of major legal tradition:",
"title": "Classifications of legal systems"
}
] | Comparative law is the study of differences and similarities between the law of different countries. More specifically, it involves the study of the different legal "systems" in existence in the world, including the common law, the civil law, socialist law, Canon law, Jewish Law, Islamic law, Hindu law, and Chinese law. It includes the description and analysis of foreign legal systems, even where no explicit comparison is undertaken. The importance of comparative law has increased enormously in the present age of internationalism, economic globalization, and democratization. | 2001-12-07T04:21:21Z | 2023-12-31T06:40:37Z | [
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7,380 | CD (disambiguation) | A CD or compact disc is a thin plastic silvery disc for audio recordings.
CD or cd may also refer to: | [
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"title": ""
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"text": "CD or cd may also refer to:",
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] | A CD or compact disc is a thin plastic silvery disc for audio recordings. CD or cd may also refer to: | 2001-12-07T12:22:57Z | 2023-09-25T13:56:35Z | [
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7,381 | Cyberspace | Cyberspace is an interconnected digital environment. It is a type of virtual world popularized with the rise of the Internet. The term entered popular culture from science fiction and the arts but is now used by technology strategists, security professionals, governments, military and industry leaders and entrepreneurs to describe the domain of the global technology environment, commonly defined as standing for the global network of interdependent information technology infrastructures, telecommunications networks and computer processing systems. Others consider cyberspace to be just a notional environment in which communication over computer networks occurs. The word became popular in the 1990s when the use of the Internet, networking, and digital communication were all growing dramatically; the term cyberspace was able to represent the many new ideas and phenomena that were emerging. As a social experience, individuals can interact, exchange ideas, share information, provide social support, conduct business, direct actions, create artistic media, play games, engage in political discussion, and so on, using this global network. Cyberspace users are sometimes referred to as cybernauts.
The term cyberspace has become a conventional means to describe anything associated with the Internet and the diverse Internet culture. The United States government recognizes the interconnected information technology and the interdependent network of information technology infrastructures operating across this medium as part of the US national critical infrastructure. Amongst individuals on cyberspace, there is believed to be a code of shared rules and ethics mutually beneficial for all to follow, referred to as cyberethics. Many view the right to privacy as most important to a functional code of cyberethics. Such moral responsibilities go hand in hand when working online with global networks, specifically, when opinions are involved with online social experiences.
According to Chip Morningstar and F. Randall Farmer, cyberspace is defined more by the social interactions involved rather than its technical implementation. In their view, the computational medium in cyberspace is an augmentation of the communication channel between real people; the core characteristic of cyberspace is that it offers an environment that consists of many participants with the ability to affect and influence each other. They derive this concept from the observation that people seek richness, complexity, and depth within a virtual world.
The term "cyberspace" first appeared in the visual arts in the late 1960s, when Danish artist Susanne Ussing (1940-1998) and her partner architect Carsten Hoff (b. 1934) constituted themselves as Atelier Cyberspace. Under this name the two made a series of installations and images entitled "sensory spaces" that were based on the principle of open systems adaptable to various influences, such as human movement and the behaviour of new materials.
Atelier Cyberspace worked at a time when the Internet did not exist and computers were more or less off-limit to artists and creative engagement. In a 2015-interview with Scandinavian art magazine Kunstkritikk, Carsten Hoff recollects, that although Atelier Cyberspace did try to implement computers, they had no interest in the virtual space as such:
To us, "cyberspace" was simply about managing spaces. There was nothing esoteric about it. Nothing digital, either. It was just a tool. The space was concrete, physical.
And in the same interview Hoff continues:
Our shared point of departure was that we were working with physical settings, and we were both frustrated and displeased with the architecture from the period, particularly when it came to spaces for living. We felt that there was a need to loosen up the rigid confines of urban planning, giving back the gift of creativity to individual human beings and allowing them to shape and design their houses or dwellings themselves – instead of having some clever architect pop up, telling you how you should live. We were thinking in terms of open-ended systems where things could grow and evolve as required. For instance, we imagined a kind of mobile production unit, but unfortunately the drawings have been lost. It was a kind of truck with a nozzle at the back. Like a bee building its hive. The nozzle would emit and apply material that grew to form amorphous mushrooms or whatever you might imagine. It was supposed to be computer-controlled, allowing you to create interesting shapes and sequences of spaces. It was a merging of organic and technological systems, a new way of structuring the world. And a response that counteracted industrial uniformity. We had this idea that sophisticated software might enable us to mimic the way in which nature creates products – where things that belong to the same family can take different forms. All oak trees are oak trees, but no two oak trees are exactly alike. And then a whole new material – polystyrene foam – arrived on the scene. It behaved like nature in the sense that it grew when its two component parts were mixed. Almost like a fungal growth. This made it an obvious choice for our work in Atelier Cyberspace.
The works of Atelier Cyberspace were originally shown at a number of Copenhagen venues and have later been exhibited at The National Gallery of Denmark in Copenhagen as part of the exhibition "What's Happening?"
The term "cyberspace" first appeared in fiction in the 1980s in the work of cyberpunk science fiction author William Gibson, first in his 1982 short story "Burning Chrome" and later in his 1984 novel Neuromancer. In the next few years, the word became prominently identified with online computer networks. The portion of Neuromancer cited in this respect is usually the following:
Cyberspace. A consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts... A graphic representation of data abstracted from the banks of every computer in the human system. Unthinkable complexity. Lines of light ranged in the nonspace of the mind, clusters and constellations of data. Like city lights, receding.
Now widely used, the term has since been criticized by Gibson, who commented on the origin of the term in the 2000 documentary No Maps for These Territories:
All I knew about the word "cyberspace" when I coined it, was that it seemed like an effective buzzword. It seemed evocative and essentially meaningless. It was suggestive of something, but had no real semantic meaning, even for me, as I saw it emerge on the page.
Don Slater uses a metaphor to define cyberspace, describing the "sense of a social setting that exists purely within a space of representation and communication ... it exists entirely within a computer space, distributed across increasingly complex and fluid networks." The term "Cyberspace" started to become a de facto synonym for the Internet, and later the World Wide Web, during the 1990s, especially in academic circles and activist communities. Author Bruce Sterling, who popularized this meaning, credits John Perry Barlow as the first to use it to refer to "the present-day nexus of computer and telecommunications networks". Barlow describes it thus in his essay to announce the formation of the Electronic Frontier Foundation (note the spatial metaphor) in June 1990:
In this silent world, all conversation is typed. To enter it, one forsakes both body and place and becomes a thing of words alone. You can see what your neighbors are saying (or recently said), but not what either they or their physical surroundings look like. Town meetings are continuous and discussions rage on everything from sexual kinks to depreciation schedules. Whether by one telephonic tendril or millions, they are all connected to one another. Collectively, they form what their inhabitants call the Net. It extends across that immense region of electron states, microwaves, magnetic fields, light pulses and thought which sci-fi writer William Gibson named Cyberspace.
As Barlow, and the EFF continued public education efforts to promote the idea of "digital rights", the term was increasingly used during the Internet boom of the late 1990s.
Although the present-day, loose use of the term "cyberspace" no longer implies or suggests immersion in a virtual reality, current technology allows the integration of a number of capabilities (sensors, signals, connections, transmissions, processors, and controllers) sufficient to generate a virtual interactive experience that is accessible regardless of a geographic location. It is for these reasons cyberspace has been described as the ultimate tax haven.
In 1989, Autodesk, an American multinational corporation that focuses on 2D and 3D design software, developed a virtual design system called Cyberspace.
Although several definitions of cyberspace can be found both in scientific literature and in official governmental sources, there is no fully agreed official definition yet. According to F. D. Kramer there are 28 different definitions of the term cyberspace. See in particular the following links: "Cyberpower and National Security: Policy Recommendations for a Strategic Framework," in Cyberpower and National Security, FD Kramer, S. Starr, L.K. Wentz (ed.), National Defense University Press, Washington (DC) 2009; see also Mayer, M., Chiarugi, I., De Scalzi, N., https://www.academia.edu/14336129/International_Politics_in_the_Digital_Age.
The most recent draft definition is the following:
Cyberspace is a global and dynamic domain (subject to constant change) characterized by the combined use of electrons and the electromagnetic spectrum, whose purpose is to create, store, modify, exchange, share, and extract, use, eliminate information and disrupt physical resources. Cyberspace includes: a) physical infrastructures and telecommunications devices that allow for the connection of technological and communication system networks, understood in the broadest sense (SCADA devices, smartphones/tablets, computers, servers, etc.); b) computer systems (see point a) and the related (sometimes embedded) software that guarantee the domain's basic operational functioning and connectivity; c) networks between computer systems; d) networks of networks that connect computer systems (the distinction between networks and networks of networks is mainly organizational); e) the access nodes of users and intermediaries routing nodes; f) constituent data (or resident data). Often, in common parlance (and sometimes in commercial language), networks of networks are called the Internet (with a lowercase i), while networks between computers are called intranet. Internet (with a capital I, in journalistic language sometimes called the Net) can be considered a part of the system a). A distinctive and constitutive feature of cyberspace is that no central entity exercises control over all the networks that make up this new domain. Just as in the real world there is no world government, cyberspace lacks an institutionally predefined hierarchical center. To cyberspace, a domain without a hierarchical ordering principle, we can, therefore, extend the definition of international politics coined by Kenneth Waltz: as being "with no system of law enforceable." This does not mean that the dimension of power in cyberspace is absent, nor that power is dispersed and scattered into a thousand invisible streams, nor that it is evenly spread across myriad people and organizations, as some scholars had predicted. On the contrary, cyberspace is characterized by a precise structuring of hierarchies of power.
The Joint Chiefs of Staff of the United States Department of Defense define cyberspace as one of five interdependent domains, the remaining four being land, air, maritime, and space. See United States Cyber Command
While cyberspace should not be confused with the Internet, the term is often used to refer to objects and identities that exist largely within the communication network itself, so that a website, for example, might be metaphorically said to "exist in cyberspace". According to this interpretation, events taking place on the Internet are not happening in the locations where participants or servers are physically located, but "in cyberspace". The philosopher Michel Foucault used the term heterotopias, to describe such spaces which are simultaneously physical and mental.
Firstly, cyberspace describes the flow of digital data through the network of interconnected computers: it is at once not "real", since one could not spatially locate it as a tangible object, and clearly "real" in its effects. There have been several attempts to create a concise model about how cyberspace works since it is not a physical thing that can be looked at. Secondly, cyberspace is the site of computer-mediated communication (CMC), in which online relationships and alternative forms of online identity were enacted, raising important questions about the social psychology of Internet use, the relationship between "online" and "offline" forms of life and interaction, and the relationship between the "real" and the virtual. Cyberspace draws attention to remediation of culture through new media technologies: it is not just a communication tool but a social destination and is culturally significant in its own right. Finally, cyberspace can be seen as providing new opportunities to reshape society and culture through "hidden" identities, or it can be seen as borderless communication and culture.
Cyberspace is the "place" where a telephone conversation appears to occur. Not inside your actual phone, the plastic device on your desk. Not inside the other person's phone, in some other city. The place between the phones. [...] in the past twenty years, this electrical "space," which was once thin and dark and one-dimensional—little more than a narrow speaking-tube, stretching from phone to phone—has flung itself open like a gigantic jack-in-the-box. Light has flooded upon it, the eerie light of the glowing computer screen. This dark electric netherworld has become a vast flowering electronic landscape. Since the 1960s, the world of the telephone has cross-bred itself with computers and television, and though there is still no substance to cyberspace, nothing you can handle, it has a strange kind of physicality now. It makes good sense today to talk of cyberspace as a place all its own.
The "space" in cyberspace has more in common with the abstract, mathematical meanings of the term (see space) than physical space. It does not have the duality of positive and negative volume (while in physical space, for example, a room has the negative volume of usable space delineated by positive volume of walls, Internet users cannot enter the screen and explore the unknown part of the Internet as an extension of the space they are in), but spatial meaning can be attributed to the relationship between different pages (of books as well as web servers), considering the unturned pages to be somewhere "out there." The concept of cyberspace, therefore, refers not to the content being presented to the surfer, but rather to the possibility of surfing among different sites, with feedback loops between the user and the rest of the system creating the potential to always encounter something unknown or unexpected.
Video games differ from text-based communication in that on-screen images are meant to be figures that actually occupy a space and the animation shows the movement of those figures. Images are supposed to form the positive volume that delineates the empty space. A game adopts the cyberspace metaphor by engaging more players in the game, and then figuratively representing them on the screen as avatars. Games do not have to stop at the avatar-player level, but current implementations aiming for more immersive playing space (i.e. Laser tag) take the form of augmented reality rather than cyberspace, fully immersive virtual realities remaining impractical.
Although the more radical consequences of the global communication network predicted by some cyberspace proponents (i.e. the diminishing of state influence envisioned by John Perry Barlow) failed to materialize and the word lost some of its novelty appeal, it remains current as of 2006.
Some virtual communities explicitly refer to the concept of cyberspace, for example Linden Lab calling their customers "Residents" of Second Life, while all such communities can be positioned "in cyberspace" for explanatory and comparative purposes (as did Sterling in The Hacker Crackdown, followed by many journalists), integrating the metaphor into a wider cyber-culture.
The metaphor has been useful in helping a new generation of thought leaders to reason through new military strategies around the world, led largely by the US Department of Defense (DoD). The use of cyberspace as a metaphor has had its limits, however, especially in areas where the metaphor becomes confused with physical infrastructure. It has also been critiqued as being unhelpful for falsely employing a spatial metaphor to describe what is inherently a network.
A forerunner of the modern ideas of cyberspace is the Cartesian notion that people might be deceived by an evil demon that feeds them a false reality. This argument is the direct predecessor of modern ideas of a brain in a vat and many popular conceptions of cyberspace take Descartes's ideas as their starting point.
Visual arts have a tradition, stretching back to antiquity, of artifacts meant to fool the eye and be mistaken for reality. This questioning of reality occasionally led some philosophers and especially theologians to distrust art as deceiving people into entering a world which was not real (see Aniconism). The artistic challenge was resurrected with increasing ambition as art became more and more realistic with the invention of photography, film (see Arrival of a Train at La Ciotat), and immersive computer simulations.
American counterculture exponents like William S. Burroughs (whose literary influence on Gibson and cyberpunk in general is widely acknowledged) and Timothy Leary were among the first to extol the potential of computers and computer networks for individual empowerment.
Some contemporary philosophers and scientists (e.g. David Deutsch in The Fabric of Reality) employ virtual reality in various thought experiments. For example, Philip Zhai in Get Real: A Philosophical Adventure in Virtual Reality connects cyberspace to the Platonic tradition:
Let us imagine a nation in which everyone is hooked up to a network of VR infrastructure. They have been so hooked up since they left their mother's wombs. Immersed in cyberspace and maintaining their life by teleoperation, they have never imagined that life could be any different from that. The first person that thinks of the possibility of an alternative world like ours would be ridiculed by the majority of these citizens, just like the few enlightened ones in Plato's allegory of the cave.
Note that this brain-in-a-vat argument conflates cyberspace with reality, while the more common descriptions of cyberspace contrast it with the "real world".
The “Geography of Notopia” (Papadimitriou, 2006) theorizes about the complex interplay of cyber-cultures and the geographical space. This interplay has several philosophical and psychological facets (Papadimitriou, 2009).
The technological convergence of the mass media is the result of a long adaptation process of their communicative resources to the evolutionary changes of each historical moment. Thus, the new media became (plurally) an extension of the traditional media in cyberspace, allowing to the public access information in a wide range of digital devices. In other words, it is a cultural virtualization of human reality as a result of the migration from physical to virtual space (mediated by the ICTs), ruled by codes, signs and particular social relationships. Forwards, arise instant ways of communication, interaction and possible quick access to information, in which we are no longer mere senders, but also producers, reproducers, co-workers and providers. New technologies also help to "connect" people from different cultures outside the virtual space, which was unthinkable fifty years ago. In this giant relationships web, we mutually absorb each other's beliefs, customs, values, laws and habits, cultural legacies perpetuated by a physical-virtual dynamics in constant metamorphosis (ibidem). In this sense, Professor Doctor Marcelo Mendonça Teixeira created, in 2013, a new model of communication to the virtual universe, based in Claude Elwood Shannon (1948) article "A Mathematical Theory of Communication".
Having originated among writers, the concept of cyberspace remains most popular in literature and film. Although artists working with other media have expressed interest in the concept, such as Roy Ascott, "cyberspace" in digital art is mostly used as a synonym for immersive virtual reality and remains more discussed than enacted.
Cyberspace also brings together every service and facility imaginable to expedite money laundering. One can purchase anonymous credit cards, bank accounts, encrypted global mobile telephones, and false passports. From there one can pay professional advisors to set up IBCs (International Business Corporations, or corporations with anonymous ownership) or similar structures in OFCs (Offshore Financial Centers). Such advisors are loath to ask any penetrating questions about the wealth and activities of their clients, since the average fees criminals pay them to launder their money can be as much as 20 percent.
In 2010, a five-level model was designed in France. According to this model, cyberspace is composed of five layers based on information discoveries: 1) language, 2) writing, 3) printing, 4) Internet, 5) Etc., i.e. the rest, e.g. noosphere, artificial life, artificial intelligence, etc., etc. This original model links the world of information to telecommunication technologies. | [
{
"paragraph_id": 0,
"text": "Cyberspace is an interconnected digital environment. It is a type of virtual world popularized with the rise of the Internet. The term entered popular culture from science fiction and the arts but is now used by technology strategists, security professionals, governments, military and industry leaders and entrepreneurs to describe the domain of the global technology environment, commonly defined as standing for the global network of interdependent information technology infrastructures, telecommunications networks and computer processing systems. Others consider cyberspace to be just a notional environment in which communication over computer networks occurs. The word became popular in the 1990s when the use of the Internet, networking, and digital communication were all growing dramatically; the term cyberspace was able to represent the many new ideas and phenomena that were emerging. As a social experience, individuals can interact, exchange ideas, share information, provide social support, conduct business, direct actions, create artistic media, play games, engage in political discussion, and so on, using this global network. Cyberspace users are sometimes referred to as cybernauts.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The term cyberspace has become a conventional means to describe anything associated with the Internet and the diverse Internet culture. The United States government recognizes the interconnected information technology and the interdependent network of information technology infrastructures operating across this medium as part of the US national critical infrastructure. Amongst individuals on cyberspace, there is believed to be a code of shared rules and ethics mutually beneficial for all to follow, referred to as cyberethics. Many view the right to privacy as most important to a functional code of cyberethics. Such moral responsibilities go hand in hand when working online with global networks, specifically, when opinions are involved with online social experiences.",
"title": ""
},
{
"paragraph_id": 2,
"text": "According to Chip Morningstar and F. Randall Farmer, cyberspace is defined more by the social interactions involved rather than its technical implementation. In their view, the computational medium in cyberspace is an augmentation of the communication channel between real people; the core characteristic of cyberspace is that it offers an environment that consists of many participants with the ability to affect and influence each other. They derive this concept from the observation that people seek richness, complexity, and depth within a virtual world.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The term \"cyberspace\" first appeared in the visual arts in the late 1960s, when Danish artist Susanne Ussing (1940-1998) and her partner architect Carsten Hoff (b. 1934) constituted themselves as Atelier Cyberspace. Under this name the two made a series of installations and images entitled \"sensory spaces\" that were based on the principle of open systems adaptable to various influences, such as human movement and the behaviour of new materials.",
"title": "Etymology"
},
{
"paragraph_id": 4,
"text": "Atelier Cyberspace worked at a time when the Internet did not exist and computers were more or less off-limit to artists and creative engagement. In a 2015-interview with Scandinavian art magazine Kunstkritikk, Carsten Hoff recollects, that although Atelier Cyberspace did try to implement computers, they had no interest in the virtual space as such:",
"title": "Etymology"
},
{
"paragraph_id": 5,
"text": "To us, \"cyberspace\" was simply about managing spaces. There was nothing esoteric about it. Nothing digital, either. It was just a tool. The space was concrete, physical.",
"title": "Etymology"
},
{
"paragraph_id": 6,
"text": "And in the same interview Hoff continues:",
"title": "Etymology"
},
{
"paragraph_id": 7,
"text": "Our shared point of departure was that we were working with physical settings, and we were both frustrated and displeased with the architecture from the period, particularly when it came to spaces for living. We felt that there was a need to loosen up the rigid confines of urban planning, giving back the gift of creativity to individual human beings and allowing them to shape and design their houses or dwellings themselves – instead of having some clever architect pop up, telling you how you should live. We were thinking in terms of open-ended systems where things could grow and evolve as required. For instance, we imagined a kind of mobile production unit, but unfortunately the drawings have been lost. It was a kind of truck with a nozzle at the back. Like a bee building its hive. The nozzle would emit and apply material that grew to form amorphous mushrooms or whatever you might imagine. It was supposed to be computer-controlled, allowing you to create interesting shapes and sequences of spaces. It was a merging of organic and technological systems, a new way of structuring the world. And a response that counteracted industrial uniformity. We had this idea that sophisticated software might enable us to mimic the way in which nature creates products – where things that belong to the same family can take different forms. All oak trees are oak trees, but no two oak trees are exactly alike. And then a whole new material – polystyrene foam – arrived on the scene. It behaved like nature in the sense that it grew when its two component parts were mixed. Almost like a fungal growth. This made it an obvious choice for our work in Atelier Cyberspace.",
"title": "Etymology"
},
{
"paragraph_id": 8,
"text": "The works of Atelier Cyberspace were originally shown at a number of Copenhagen venues and have later been exhibited at The National Gallery of Denmark in Copenhagen as part of the exhibition \"What's Happening?\"",
"title": "Etymology"
},
{
"paragraph_id": 9,
"text": "The term \"cyberspace\" first appeared in fiction in the 1980s in the work of cyberpunk science fiction author William Gibson, first in his 1982 short story \"Burning Chrome\" and later in his 1984 novel Neuromancer. In the next few years, the word became prominently identified with online computer networks. The portion of Neuromancer cited in this respect is usually the following:",
"title": "Etymology"
},
{
"paragraph_id": 10,
"text": "Cyberspace. A consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts... A graphic representation of data abstracted from the banks of every computer in the human system. Unthinkable complexity. Lines of light ranged in the nonspace of the mind, clusters and constellations of data. Like city lights, receding.",
"title": "Etymology"
},
{
"paragraph_id": 11,
"text": "Now widely used, the term has since been criticized by Gibson, who commented on the origin of the term in the 2000 documentary No Maps for These Territories:",
"title": "Etymology"
},
{
"paragraph_id": 12,
"text": "All I knew about the word \"cyberspace\" when I coined it, was that it seemed like an effective buzzword. It seemed evocative and essentially meaningless. It was suggestive of something, but had no real semantic meaning, even for me, as I saw it emerge on the page.",
"title": "Etymology"
},
{
"paragraph_id": 13,
"text": "Don Slater uses a metaphor to define cyberspace, describing the \"sense of a social setting that exists purely within a space of representation and communication ... it exists entirely within a computer space, distributed across increasingly complex and fluid networks.\" The term \"Cyberspace\" started to become a de facto synonym for the Internet, and later the World Wide Web, during the 1990s, especially in academic circles and activist communities. Author Bruce Sterling, who popularized this meaning, credits John Perry Barlow as the first to use it to refer to \"the present-day nexus of computer and telecommunications networks\". Barlow describes it thus in his essay to announce the formation of the Electronic Frontier Foundation (note the spatial metaphor) in June 1990:",
"title": "Etymology"
},
{
"paragraph_id": 14,
"text": "In this silent world, all conversation is typed. To enter it, one forsakes both body and place and becomes a thing of words alone. You can see what your neighbors are saying (or recently said), but not what either they or their physical surroundings look like. Town meetings are continuous and discussions rage on everything from sexual kinks to depreciation schedules. Whether by one telephonic tendril or millions, they are all connected to one another. Collectively, they form what their inhabitants call the Net. It extends across that immense region of electron states, microwaves, magnetic fields, light pulses and thought which sci-fi writer William Gibson named Cyberspace.",
"title": "Etymology"
},
{
"paragraph_id": 15,
"text": "As Barlow, and the EFF continued public education efforts to promote the idea of \"digital rights\", the term was increasingly used during the Internet boom of the late 1990s.",
"title": "Etymology"
},
{
"paragraph_id": 16,
"text": "Although the present-day, loose use of the term \"cyberspace\" no longer implies or suggests immersion in a virtual reality, current technology allows the integration of a number of capabilities (sensors, signals, connections, transmissions, processors, and controllers) sufficient to generate a virtual interactive experience that is accessible regardless of a geographic location. It is for these reasons cyberspace has been described as the ultimate tax haven.",
"title": "Etymology"
},
{
"paragraph_id": 17,
"text": "In 1989, Autodesk, an American multinational corporation that focuses on 2D and 3D design software, developed a virtual design system called Cyberspace.",
"title": "Etymology"
},
{
"paragraph_id": 18,
"text": "Although several definitions of cyberspace can be found both in scientific literature and in official governmental sources, there is no fully agreed official definition yet. According to F. D. Kramer there are 28 different definitions of the term cyberspace. See in particular the following links: \"Cyberpower and National Security: Policy Recommendations for a Strategic Framework,\" in Cyberpower and National Security, FD Kramer, S. Starr, L.K. Wentz (ed.), National Defense University Press, Washington (DC) 2009; see also Mayer, M., Chiarugi, I., De Scalzi, N., https://www.academia.edu/14336129/International_Politics_in_the_Digital_Age.",
"title": "Etymology"
},
{
"paragraph_id": 19,
"text": "The most recent draft definition is the following:",
"title": "Etymology"
},
{
"paragraph_id": 20,
"text": "Cyberspace is a global and dynamic domain (subject to constant change) characterized by the combined use of electrons and the electromagnetic spectrum, whose purpose is to create, store, modify, exchange, share, and extract, use, eliminate information and disrupt physical resources. Cyberspace includes: a) physical infrastructures and telecommunications devices that allow for the connection of technological and communication system networks, understood in the broadest sense (SCADA devices, smartphones/tablets, computers, servers, etc.); b) computer systems (see point a) and the related (sometimes embedded) software that guarantee the domain's basic operational functioning and connectivity; c) networks between computer systems; d) networks of networks that connect computer systems (the distinction between networks and networks of networks is mainly organizational); e) the access nodes of users and intermediaries routing nodes; f) constituent data (or resident data). Often, in common parlance (and sometimes in commercial language), networks of networks are called the Internet (with a lowercase i), while networks between computers are called intranet. Internet (with a capital I, in journalistic language sometimes called the Net) can be considered a part of the system a). A distinctive and constitutive feature of cyberspace is that no central entity exercises control over all the networks that make up this new domain. Just as in the real world there is no world government, cyberspace lacks an institutionally predefined hierarchical center. To cyberspace, a domain without a hierarchical ordering principle, we can, therefore, extend the definition of international politics coined by Kenneth Waltz: as being \"with no system of law enforceable.\" This does not mean that the dimension of power in cyberspace is absent, nor that power is dispersed and scattered into a thousand invisible streams, nor that it is evenly spread across myriad people and organizations, as some scholars had predicted. On the contrary, cyberspace is characterized by a precise structuring of hierarchies of power.",
"title": "Etymology"
},
{
"paragraph_id": 21,
"text": "The Joint Chiefs of Staff of the United States Department of Defense define cyberspace as one of five interdependent domains, the remaining four being land, air, maritime, and space. See United States Cyber Command",
"title": "Etymology"
},
{
"paragraph_id": 22,
"text": "While cyberspace should not be confused with the Internet, the term is often used to refer to objects and identities that exist largely within the communication network itself, so that a website, for example, might be metaphorically said to \"exist in cyberspace\". According to this interpretation, events taking place on the Internet are not happening in the locations where participants or servers are physically located, but \"in cyberspace\". The philosopher Michel Foucault used the term heterotopias, to describe such spaces which are simultaneously physical and mental.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 23,
"text": "Firstly, cyberspace describes the flow of digital data through the network of interconnected computers: it is at once not \"real\", since one could not spatially locate it as a tangible object, and clearly \"real\" in its effects. There have been several attempts to create a concise model about how cyberspace works since it is not a physical thing that can be looked at. Secondly, cyberspace is the site of computer-mediated communication (CMC), in which online relationships and alternative forms of online identity were enacted, raising important questions about the social psychology of Internet use, the relationship between \"online\" and \"offline\" forms of life and interaction, and the relationship between the \"real\" and the virtual. Cyberspace draws attention to remediation of culture through new media technologies: it is not just a communication tool but a social destination and is culturally significant in its own right. Finally, cyberspace can be seen as providing new opportunities to reshape society and culture through \"hidden\" identities, or it can be seen as borderless communication and culture.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 24,
"text": "Cyberspace is the \"place\" where a telephone conversation appears to occur. Not inside your actual phone, the plastic device on your desk. Not inside the other person's phone, in some other city. The place between the phones. [...] in the past twenty years, this electrical \"space,\" which was once thin and dark and one-dimensional—little more than a narrow speaking-tube, stretching from phone to phone—has flung itself open like a gigantic jack-in-the-box. Light has flooded upon it, the eerie light of the glowing computer screen. This dark electric netherworld has become a vast flowering electronic landscape. Since the 1960s, the world of the telephone has cross-bred itself with computers and television, and though there is still no substance to cyberspace, nothing you can handle, it has a strange kind of physicality now. It makes good sense today to talk of cyberspace as a place all its own.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 25,
"text": "The \"space\" in cyberspace has more in common with the abstract, mathematical meanings of the term (see space) than physical space. It does not have the duality of positive and negative volume (while in physical space, for example, a room has the negative volume of usable space delineated by positive volume of walls, Internet users cannot enter the screen and explore the unknown part of the Internet as an extension of the space they are in), but spatial meaning can be attributed to the relationship between different pages (of books as well as web servers), considering the unturned pages to be somewhere \"out there.\" The concept of cyberspace, therefore, refers not to the content being presented to the surfer, but rather to the possibility of surfing among different sites, with feedback loops between the user and the rest of the system creating the potential to always encounter something unknown or unexpected.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 26,
"text": "Video games differ from text-based communication in that on-screen images are meant to be figures that actually occupy a space and the animation shows the movement of those figures. Images are supposed to form the positive volume that delineates the empty space. A game adopts the cyberspace metaphor by engaging more players in the game, and then figuratively representing them on the screen as avatars. Games do not have to stop at the avatar-player level, but current implementations aiming for more immersive playing space (i.e. Laser tag) take the form of augmented reality rather than cyberspace, fully immersive virtual realities remaining impractical.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 27,
"text": "Although the more radical consequences of the global communication network predicted by some cyberspace proponents (i.e. the diminishing of state influence envisioned by John Perry Barlow) failed to materialize and the word lost some of its novelty appeal, it remains current as of 2006.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 28,
"text": "Some virtual communities explicitly refer to the concept of cyberspace, for example Linden Lab calling their customers \"Residents\" of Second Life, while all such communities can be positioned \"in cyberspace\" for explanatory and comparative purposes (as did Sterling in The Hacker Crackdown, followed by many journalists), integrating the metaphor into a wider cyber-culture.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 29,
"text": "The metaphor has been useful in helping a new generation of thought leaders to reason through new military strategies around the world, led largely by the US Department of Defense (DoD). The use of cyberspace as a metaphor has had its limits, however, especially in areas where the metaphor becomes confused with physical infrastructure. It has also been critiqued as being unhelpful for falsely employing a spatial metaphor to describe what is inherently a network.",
"title": "Cyberspace as an Internet metaphor"
},
{
"paragraph_id": 30,
"text": "A forerunner of the modern ideas of cyberspace is the Cartesian notion that people might be deceived by an evil demon that feeds them a false reality. This argument is the direct predecessor of modern ideas of a brain in a vat and many popular conceptions of cyberspace take Descartes's ideas as their starting point.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 31,
"text": "Visual arts have a tradition, stretching back to antiquity, of artifacts meant to fool the eye and be mistaken for reality. This questioning of reality occasionally led some philosophers and especially theologians to distrust art as deceiving people into entering a world which was not real (see Aniconism). The artistic challenge was resurrected with increasing ambition as art became more and more realistic with the invention of photography, film (see Arrival of a Train at La Ciotat), and immersive computer simulations.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 32,
"text": "American counterculture exponents like William S. Burroughs (whose literary influence on Gibson and cyberpunk in general is widely acknowledged) and Timothy Leary were among the first to extol the potential of computers and computer networks for individual empowerment.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 33,
"text": "Some contemporary philosophers and scientists (e.g. David Deutsch in The Fabric of Reality) employ virtual reality in various thought experiments. For example, Philip Zhai in Get Real: A Philosophical Adventure in Virtual Reality connects cyberspace to the Platonic tradition:",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 34,
"text": "Let us imagine a nation in which everyone is hooked up to a network of VR infrastructure. They have been so hooked up since they left their mother's wombs. Immersed in cyberspace and maintaining their life by teleoperation, they have never imagined that life could be any different from that. The first person that thinks of the possibility of an alternative world like ours would be ridiculed by the majority of these citizens, just like the few enlightened ones in Plato's allegory of the cave.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 35,
"text": "Note that this brain-in-a-vat argument conflates cyberspace with reality, while the more common descriptions of cyberspace contrast it with the \"real world\".",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 36,
"text": "The “Geography of Notopia” (Papadimitriou, 2006) theorizes about the complex interplay of cyber-cultures and the geographical space. This interplay has several philosophical and psychological facets (Papadimitriou, 2009).",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 37,
"text": "The technological convergence of the mass media is the result of a long adaptation process of their communicative resources to the evolutionary changes of each historical moment. Thus, the new media became (plurally) an extension of the traditional media in cyberspace, allowing to the public access information in a wide range of digital devices. In other words, it is a cultural virtualization of human reality as a result of the migration from physical to virtual space (mediated by the ICTs), ruled by codes, signs and particular social relationships. Forwards, arise instant ways of communication, interaction and possible quick access to information, in which we are no longer mere senders, but also producers, reproducers, co-workers and providers. New technologies also help to \"connect\" people from different cultures outside the virtual space, which was unthinkable fifty years ago. In this giant relationships web, we mutually absorb each other's beliefs, customs, values, laws and habits, cultural legacies perpetuated by a physical-virtual dynamics in constant metamorphosis (ibidem). In this sense, Professor Doctor Marcelo Mendonça Teixeira created, in 2013, a new model of communication to the virtual universe, based in Claude Elwood Shannon (1948) article \"A Mathematical Theory of Communication\".",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 38,
"text": "Having originated among writers, the concept of cyberspace remains most popular in literature and film. Although artists working with other media have expressed interest in the concept, such as Roy Ascott, \"cyberspace\" in digital art is mostly used as a synonym for immersive virtual reality and remains more discussed than enacted.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 39,
"text": "Cyberspace also brings together every service and facility imaginable to expedite money laundering. One can purchase anonymous credit cards, bank accounts, encrypted global mobile telephones, and false passports. From there one can pay professional advisors to set up IBCs (International Business Corporations, or corporations with anonymous ownership) or similar structures in OFCs (Offshore Financial Centers). Such advisors are loath to ask any penetrating questions about the wealth and activities of their clients, since the average fees criminals pay them to launder their money can be as much as 20 percent.",
"title": "Alternate realities in philosophy and art"
},
{
"paragraph_id": 40,
"text": "In 2010, a five-level model was designed in France. According to this model, cyberspace is composed of five layers based on information discoveries: 1) language, 2) writing, 3) printing, 4) Internet, 5) Etc., i.e. the rest, e.g. noosphere, artificial life, artificial intelligence, etc., etc. This original model links the world of information to telecommunication technologies.",
"title": "Alternate realities in philosophy and art"
}
] | Cyberspace is an interconnected digital environment. It is a type of virtual world popularized with the rise of the Internet. The term entered popular culture from science fiction and the arts but is now used by technology strategists, security professionals, governments, military and industry leaders and entrepreneurs to describe the domain of the global technology environment, commonly defined as standing for the global network of interdependent information technology infrastructures, telecommunications networks and computer processing systems. Others consider cyberspace to be just a notional environment in which communication over computer networks occurs. The word became popular in the 1990s when the use of the Internet, networking, and digital communication were all growing dramatically; the term cyberspace was able to represent the many new ideas and phenomena that were emerging.
As a social experience, individuals can interact, exchange ideas, share information, provide social support, conduct business, direct actions, create artistic media, play games, engage in political discussion, and so on, using this global network. Cyberspace users are sometimes referred to as cybernauts. The term cyberspace has become a conventional means to describe anything associated with the Internet and the diverse Internet culture. The United States government recognizes the interconnected information technology and the interdependent network of information technology infrastructures operating across this medium as part of the US national critical infrastructure. Amongst individuals on cyberspace, there is believed to be a code of shared rules and ethics mutually beneficial for all to follow, referred to as cyberethics. Many view the right to privacy as most important to a functional code of cyberethics. Such moral responsibilities go hand in hand when working online with global networks, specifically, when opinions are involved with online social experiences. According to Chip Morningstar and F. Randall Farmer, cyberspace is defined more by the social interactions involved rather than its technical implementation. In their view, the computational medium in cyberspace is an augmentation of the communication channel between real people; the core characteristic of cyberspace is that it offers an environment that consists of many participants with the ability to affect and influence each other. They derive this concept from the observation that people seek richness, complexity, and depth within a virtual world. | 2001-12-07T16:13:40Z | 2023-12-07T15:43:40Z | [
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7,382 | The Maritimes | The Maritimes, also called the Maritime provinces, is a region of Eastern Canada consisting of three provinces: New Brunswick, Nova Scotia, and Prince Edward Island. The Maritimes had a population of 1,899,324 in 2021, which makes up 5.1% of Canada's population. Together with Canada's easternmost province, Newfoundland and Labrador, the Maritime provinces make up the region of Atlantic Canada.
Located along the Atlantic coast, various aquatic sub-basins are located in the Maritimes, such as the Gulf of Maine and Gulf of St. Lawrence. The region is located northeast of New England in the United States, south and southeast of Quebec's Gaspé Peninsula, and southwest of the island of Newfoundland. The notion of a Maritime Union has been proposed at various times in Canada's history; the first discussions in 1864 at the Charlottetown Conference contributed to Canadian Confederation. This movement formed the larger Dominion of Canada. The Mi'kmaq, Maliseet and Passamaquoddy people are indigenous to the Maritimes, while Acadian and British settlements date to the 17th century.
The word maritime is an adjective that means of the sea; thus any land adjacent to the sea can be considered maritime. But the term Maritimes has historically been collectively applied to New Brunswick, Nova Scotia and Prince Edward Island, all of which border the Atlantic Ocean.
The pre-history of the Canadian Maritimes begins after the northerly retreat of glaciers at the end of the Wisconsin glaciation over 10,000 years ago; human settlement by First Nations began in the Maritimes with Paleo-Indians during the Early Period, ending around 6,000 years ago.
The Middle Period, starting 6,000 years ago, and ending 3,000 years ago, was dominated by rising sea levels from the melting glaciers in polar regions. This is also when what is called the Laurentian tradition started among Archaic Indians, the term used for First Nations peoples of the time. Evidence of Archaic Indian burial mounds and other ceremonial sites existing in the Saint John River valley has been uncovered.
The Late Period extended from 3,000 years ago until first contact with European settlers. This period was dominated by the organization of First Nations peoples into the Algonquian-speaking Abenaki Nation, which occupied territory largely in present-day interior Vermont, New Hampshire, and Maine, and the Mi'kmaq Nation, which inhabited all of Nova Scotia, Prince Edward Island, eastern New Brunswick and the southern Gaspé. The primarily agrarian Maliseet Nation settled throughout the Saint John River and Allagash River valleys of present-day New Brunswick and Maine. The Passamaquoddy Nation inhabited the northwestern coastal regions of the present-day Bay of Fundy. The Mi'kmaq Nation is also believed to have crossed the present-day Cabot Strait at around this time to settle on the south coast of Newfoundland, but they were a minority compared to the Beothuk Nation.
After Newfoundland, the Maritimes were the second area in Canada to be settled by Europeans. There is evidence that Viking explorers discovered and settled in the Vinland region around 1000 AD, which is when the L'Anse aux Meadows settlement in Newfoundland and Labrador has been dated. They may have made further exploration into the present-day Maritimes and northeastern United States.
Both Giovanni Caboto (John Cabot) and Giovanni da Verrazzano are reported to have sailed in or near Maritime waters during their voyages of discovery for England and France, respectively. Several Portuguese explorers / cartographers have also documented various parts of the Maritimes, namely Diogo Homem. However, it was French explorer Jacques Cartier who made the first detailed reconnaissance of the region for a European power and, in so doing, claimed the region for the King of France. Cartier was followed by nobleman Pierre Dugua, Sieur de Mons, who was accompanied by explorer / cartographer Samuel de Champlain in a 1604 expedition. During this they established the second permanent European settlement in what is now the United States and Canada, following Spain's settlement at St. Augustine in present-day Florida in the American South. Champlain's settlement at Saint Croix Island, later moved to Port Royal (Annapolis Royal), survived. By contrast, the ill-fated English settlement at Roanoke Colony off the southern American coast did not. The French settlement pre-dated the more successful English settlement at Jamestown in present-day Virginia by three years. Champlain was considered the founder of New France's province of Canada, which comprises much of the present-day lower St. Lawrence River valley in the province of Quebec.
Champlain's success in the region, which came to be called Acadie, led to the fertile tidal marshes surrounding the southeastern and northeastern reaches of the Bay of Fundy being populated by French immigrants who called themselves Acadien. The Acadians eventually built small settlements throughout what is today mainland Nova Scotia and New Brunswick, as well as Île-Saint-Jean (Prince Edward Island), Île-Royale (Cape Breton Island), and other shorelines of the Gulf of St. Lawrence in present-day Newfoundland and Labrador, and Quebec. Acadian settlements had primarily agrarian economies. Early examples of Acadian fishing settlements developed in southwestern Nova Scotia and in Île-Royale, as well as along the south and west coasts of Newfoundland, the Gaspé Peninsula, and the present-day Côte-Nord region of Quebec. Most Acadian fishing activities were overshadowed by the much larger seasonal European fishing fleets that were based out of Newfoundland and took advantage of proximity to the Grand Banks.
The growing English colonies along the American seaboard to the south and various European wars between England and France during the 17th and 18th centuries brought Acadia to the centre of world-scale geopolitical forces. In 1613, Virginian raiders captured Port-Royal, and in 1621 France ceded Acadia to Scotland's Sir William Alexander, who renamed it as Nova Scotia.
By 1632, Acadia was returned from Scotland to France under the Treaty of Saint-Germain-en-Laye. The Port Royale settlement was moved to the site of nearby present-day Annapolis Royal. More French immigrant settlers, primarily from the Brittany, Normandie, and Vienne regions of France, continued to populate the colony of Acadia during the latter part of the 17th and early part of the 18th centuries. Important settlements also began in the Beaubassin region of the present-day Isthmus of Chignecto, and in the Saint John River valley, as well as smaller communities on Île-Saint-Jean and Île-Royale.
In 1654, raiders from New England attacked Acadian settlements on the Annapolis Basin. Acadians lived with uncertainty throughout the English constitutional crises under Oliver Cromwell, and it was not until the Treaty of Breda in 1667 that France's claim to the region was reaffirmed. Colonial administration by France throughout the history of Acadia was of low priority. France's priorities were in settling and strengthening its claim on the larger territory of New France and the exploration and settlement of interior North America and the Mississippi River valley.
Over 74 years (1689–1763) there were six colonial wars, which involved continuous warfare between New England and Acadia (see the French and Indian Wars reflecting English and French tensions in Europe, as well as Father Rale's War (Dummer's War) and Father Le Loutre's War). Throughout these wars, New England was allied with the Iroquois Confederacy based around the southern Great Lakes and west of the Hudson River. Acadian settlers were allied with the Wabanaki Confederacy. In the first war, King William's War (the North American theatre of the Nine Years' War), natives from the Maritime region participated in numerous attacks with the French on the Acadia / New England border in southern Maine (e.g., Raid on Salmon Falls). New England retaliatory raids on Acadia, such as the Raid on Chignecto, were conducted by Benjamin Church. In the second war, Queen Anne's War (the North American theatre of the War of the Spanish Succession), the British conducted the Conquest of Acadia, while the region remained primarily in control of Maliseet militia, Acadia militia and Mi'kmaw militia.
In 1719, to further protect strategic interests in the Gulf of St. Lawrence and St. Lawrence River, France began the 20-year construction of a large fortress at Louisbourg on Île-Royale. Massachusetts was increasingly concerned over reports of the capabilities of this fortress, and of privateers staging out of its harbour to raid New England fishermen on the Grand Banks. In the fourth war, King George's War (the North American theatre of the War of the Austrian Succession), the British engaged successfully in the Siege of Louisbourg. The British returned control of Île-Royale to France with the fortress virtually intact three years later under the Treaty of Aix-la-Chapelle and the French reestablished their forces there.
In 1749, to counter the rising threat of Louisbourg, Halifax was founded and the Royal Navy established a major naval base and citadel. The founding of Halifax sparked Father Le Loutre's War.
During the sixth and final colonial war, the French and Indian War (the North American theatre of the Seven Years' War), the military conflicts in Nova Scotia continued. The British Conquest of Acadia happened in 1710. Over the next forty-five years, the Acadians refused to sign an unconditional oath of allegiance to Britain. During this time period Acadians participated in various militia operations against the British and maintained vital supply lines to the French Fortress of Louisbourg and Fort Beausejour. The British sought to neutralize any military threat Acadians posed and to interrupt the vital supply lines Acadians provided to Louisbourg by deporting Acadians from Acadia.
The British began the Expulsion of the Acadians with the Bay of Fundy campaign in 1775. Over the next nine years over 12,000 Acadians of 15,000 were removed from Nova Scotia.
In 1758, the fortress of Louisbourg was laid siege for a second time within 15 years, this time by more than 27,000 British soldiers and sailors with over 150 warships. After the French surrender, Louisbourg was thoroughly destroyed by British engineers to ensure it would never be reclaimed. With the fall of Louisbourg, French and Mi'kmaw resistance in the region crumbled. British forces seized remaining French control over Acadia in the coming months, with Île-Saint-Jean falling in 1759 to British forces on their way to Quebec City for the first siege of Quebec and the ensuing Battle of the Plains of Abraham.
The war ended and Britain had gained control over the entire Maritime region and the Indigenous people signed the Halifax Treaties.
Following the Seven Years' War, empty Acadian lands were settled first by 8,000 New England Planters and then by immigrants brought from Yorkshire. Île-Royale was renamed Cape Breton Island and incorporated into the Colony of Nova Scotia. Some of the Acadians who had been deported came back but went to the eastern coasts of New Brunswick.
Both the colonies of Nova Scotia (present-day Nova Scotia and New Brunswick) and St. John's Island (Prince Edward Island) were affected by the American Revolutionary War, largely by privateering against American shipping, but several coastal communities were also the targets of American raiders. Charlottetown, the capital of the new colony of St. John's Island, was ransacked in 1775 with the provincial secretary kidnapped and the Great Seal stolen. The largest military action in the Maritimes during the revolutionary war was the attack on Fort Cumberland (the renamed Fort Beauséjour) in 1776 by a force of American sympathizers led by Jonathan Eddy. The fort was partially overrun after a month-long siege, but the attackers were ultimately repelled after the arrival of British reinforcements from Halifax.
The most significant impact from this war was the settling of large numbers of Loyalist refugees in the region (34,000 to the 17,000 settlers already there), especially in Shelburne and Parrtown (Saint John). Following the Treaty of Paris in 1783, Loyalist settlers in what would become New Brunswick persuaded British administrators to split the Colony of Nova Scotia to create the new colony of New Brunswick in 1784. At the same time, another part of the Colony of Nova Scotia, Cape Breton Island, was split off to become the Colony of Cape Breton Island. The Colony of St. John's Island was renamed to Prince Edward Island on November 29, 1798.
The War of 1812 had some effect on the shipping industry in the Maritime colonies of New Brunswick, Nova Scotia, Prince Edward Island, and Cape Breton Island; however, the significant Royal Navy presence in Halifax and other ports in the region prevented any serious attempts by American raiders. Maritime and American privateers targeted unprotected shipping of both the United States and Britain respectively, further reducing trade. New Brunswick's section of the Canada–US border did not have any significant action during this conflict, although British forces did occupy a portion of coastal Maine at one point. The most significant incident from this war which occurred in the Maritimes was the British capture and detention of USS Chesapeake, an American frigate in Halifax.
In 1820, the Colony of Cape Breton Island was merged back into the Colony of Nova Scotia for the second time by the British government.
British settlement of the Maritimes, as the colonies of Nova Scotia, New Brunswick and Prince Edward Island came to be known, accelerated throughout the late 18th century and into the 19th century with significant immigration to the region as a result of Scottish migrants displaced by the Highland Clearances and Irish escaping the Great Irish Famine (1845–1849). As a result, significant portions of the three provinces are influenced by Celtic heritages, with Scottish Gaelic (and to a lesser degree, Irish Gaelic) having been widely spoken, particularly in Cape Breton, although it is less prevalent today.
During the American Civil War, a significant number of Maritimers volunteered to fight for the armies of the Union, while a small handful joined the Confederate Army. However, the majority of the conflict's impact was felt in the shipping industry. Maritime shipping boomed during the war due to large-scale Northern imports of war supplies which were often carried by Maritime ships as Union ships were vulnerable to Confederate naval raiders. Diplomatic tensions between Britain and the Unionist North had deteriorated after some interests in Britain expressed support for the secessionist Confederate South. The Union Navy, although much smaller than the British Royal Navy and no threat to the Maritimes, did posture off Maritime coasts at times chasing Confederate naval ships which sought repairs and reprovisioning in Maritime ports, especially Halifax.
The immense size of the Union Army (the largest on the planet toward the end of the Civil War), however, was viewed with increasing concern by Maritimers throughout the early 1860s. Another concern was the rising threat of Fenian raids on border communities in New Brunswick by the Fenian Brotherhood seeking to end British rule in Ireland. This combination of events, coupled with an ongoing decline in British military and economic support to the region as the Home Office favoured newer colonial endeavours in Africa and elsewhere, led to a call among Maritime politicians for a conference on Maritime Union, to be held in early September 1864 in Charlottetown – chosen in part because of Prince Edward Island's reluctance to give up its jurisdictional sovereignty in favour of uniting with New Brunswick and Nova Scotia into a single colony. New Brunswick and Nova Scotia felt that if the union conference were held in Charlottetown, they might be able to convince Island politicians to support the proposal.
The Charlottetown Conference, as it came to be called, was also attended by a slew of visiting delegates from the neighbouring Crown colony, the Province of Canada, who had largely arrived at their own invitation with their own agenda. This agenda saw the conference dominated by discussions of creating an even larger union of the entire territory of British North America into a united colony. The Charlottetown Conference ended with an agreement to meet the following month in Quebec City, where more formal discussions ensued, culminating with meetings in London and the signing of the British North America Act, 1867 (BNA Act). Of the Maritime provinces, only Nova Scotia and New Brunswick were initially party to the BNA Act: Prince Edward Island's reluctance, combined with a booming agricultural and fishing export economy having led to that colony opting not to sign on.
The major communities of the region include Halifax and Cape Breton in Nova Scotia, Moncton, Saint John, and Fredericton in New Brunswick, and Charlottetown in Prince Edward Island.
In spite of its name, The Maritimes has a humid continental climate of the warm-summer subtype. Especially in coastal Nova Scotia, differences between summers and winters are narrow compared to the rest of Canada. The inland climate of New Brunswick is in stark contrast during winter, resembling more continental areas. Summers are somewhat tempered by the marine influence throughout the provinces, but due to the southerly parallels still remain similar to more continental areas further west. Yarmouth in Nova Scotia has significant marine influence to have a borderline oceanic microclimate, but winter nights are still cold even in all coastal areas. The northernmost areas of New Brunswick are only just above subarctic with very cold continental winters.
The Maritimes were predominantly rural until recent decades, having resource-based economies of fishing, agriculture, forestry, and coal mining.
Maritimers are predominantly of west European origin: Scottish Canadians, Irish Canadians, English Canadians, and Acadians. New Brunswick, in general, differs from the other two Maritime provinces in that it has a much higher Francophone population. There was once a significant Canadian Gaelic speaking population. Helen Creighton recorded Celtic traditions of rural Nova Scotia in the mid-1900s.
There are Black Canadians who are mostly descendants of Black Loyalists or black refugees from the War of 1812. This Maritime population is mainly among Black Nova Scotians.
There are Mi'kmaq reserves in all three provinces, and a smaller population of the Maliseet in western New Brunswick.
Given the small population of the region (compared with the Central Canadian provinces or the New England states), the regional economy is a net exporter of natural resources, manufactured goods, and services. The regional economy has long been tied to natural resources such as fishing, logging, farming, and mining activities. Significant industrialization in the second half of the 19th century brought steel to Trenton, Nova Scotia, and subsequent creation of a widespread industrial base to take advantage of the region's large underground coal deposits. After Confederation, however, this industrial base withered with technological change, and trading links to Europe and the U.S. were reduced in favour of those with Ontario and Quebec. In recent years, however, the Maritime regional economy has begun increased contributions from manufacturing again and the steady transition to a service economy.
Important manufacturing centres in the region include Pictou County, Truro, the Annapolis Valley and the South Shore, and the Strait of Canso area in Nova Scotia, as well as Summerside in Prince Edward Island, and the Miramichi area, the North Shore and the upper Saint John River valley of New Brunswick.
Some predominantly coastal areas have become major tourist centres, such as parts of Prince Edward Island, Cape Breton Island, the South Shore of Nova Scotia and the Gulf of St. Lawrence and Bay of Fundy coasts of New Brunswick. Additional service-related industries in information technology, pharmaceuticals, insurance and financial sectors—as well as research-related spin-offs from the region's numerous universities and colleges—are significant economic contributors.
Another important contribution to Nova Scotia's provincial economy is through spin-offs and royalties relating to off-shore petroleum exploration and development. Mostly concentrated on the continental shelf of the province's Atlantic coast in the vicinity of Sable Island, exploration activities began in the 1960s and resulted in the first commercial production field for oil beginning in the 1980s. Natural gas was also discovered in the 1980s during exploration work, and this is being commercially recovered, beginning in the late 1990s. Initial optimism in Nova Scotia about the potential of off-shore resources appears to have diminished with the lack of new discoveries, although exploration work continues and is moving farther off-shore into waters on the continental margin.
Regional transportation networks have also changed significantly in recent decades with port modernizations, with new freeway and ongoing arterial highway construction, the abandonment of various low-capacity railway branch lines (including the entire railway system of Prince Edward Island and southwestern Nova Scotia), and the construction of the Canso Causeway and the Confederation Bridge. There have been airport improvements at various centres providing improved connections to markets and destinations in the rest of North America and overseas.
Improvements in infrastructure and the regional economy notwithstanding, the three provinces remain one of the poorer regions of Canada. While urban areas are growing and thriving, economic adjustments have been harsh in rural and resource-dependent communities, and emigration has been an ongoing phenomenon for some parts of the region. Another problem is seen in the lower average wages and family incomes within the region. Property values are depressed, resulting in a smaller tax base for these three provinces, particularly when compared with the national average which benefits from central and western Canadian economic growth.
This has been particularly problematic with the growth of the welfare state in Canada since the 1950s, resulting in the need to draw upon equalization payments to provide nationally mandated social services. Since the 1990s the region has experienced an exceptionally tumultuous period in its regional economy with the collapse of large portions of the ground fishery throughout Atlantic Canada, the closing of coal mines and a steel mill on Cape Breton Island, and the closure of military bases in all three provinces. That being said, New Brunswick has one of the largest military bases in the Commonwealth of Nations (CFB Gagetown), which plays a significant role in the cultural and economic spheres of Fredericton, the province's capital city.
While the economic underperformance of the Maritime economy has been long lasting, it has not always been present. The mid-19th century, especially the 1850s and 1860s, has long been seen as a "Golden Age" in the Maritimes. Growth was strong, and the region had one of British North America's most extensive manufacturing sectors as well as a large international shipping industry. The question of why the Maritimes fell from being a centre of Canadian manufacturing to being an economic hinterland is thus a central one to the study of the region's pecuniary difficulties. The period in which the decline occurred had a great many potential culprits. In 1867 Nova Scotia and New Brunswick merged with the Canadas in Confederation, with Prince Edward Island joining them six years later in 1873. Canada was formed only a year after free trade with the United States (in the form of the Reciprocity Treaty) had ended. In the 1870s John A. Macdonald's National Policy was implemented, creating a system of protective tariffs around the new nation. Throughout the period there was also significant technological change both in the production and transportation of goods.
Several scholars have explored the so-called "Golden Age" of the Maritimes in the years just before Confederation. In Nova Scotia, the population grew steadily from 277,000 in 1851 to 388,000 in 1871, mostly from natural increase since immigration was slight. The era has been called a Golden Age, but that was a myth created in the 1930s to lure tourists to a romantic era of tall ships and antiques. Recent historians using census data have shown that is a fallacy. In 1851–1871 there was an overall increase in per capita wealth holding. However most of the gains went to the urban elite class, especially businessmen and financiers living in Halifax. The wealth held by the top 10% rose considerably over the two decades, but there was little improvement in the wealth levels in rural areas, which comprised the great majority of the population. Likewise Gwyn reports that gentlemen, merchants, bankers, colliery owners, shipowners, shipbuilders, and master mariners flourished. However the great majority of families were headed by farmers, fishermen, craftsmen and labourer. Most of them—and many widows as well—lived in poverty. Out migration became an increasingly necessary option. Thus the era was indeed a golden age but only for a small but powerful and highly visible elite.
The cause of economic malaise in the Maritimes is an issue of great debate and controversy among historians, economists, and geographers. The differing opinions can approximately be divided into the "structuralists", who argue that poor policy decisions are to blame, and the others, who argue that unavoidable technological and geographical factors caused the decline.
The exact date that the Maritimes began to fall behind the rest of Canada is difficult to determine. Historian Kris Inwood places the date very early, at least in Nova Scotia, finding clear signs that the Maritimes "Golden Age" of the mid-19th century was over by 1870, before Confederation or the National Policy could have had any significant impact. Richard Caves places the date closer to 1885. T.W. Acheson takes a similar view and provides considerable evidence that the early 1880s were in fact a booming period in Nova Scotia and this growth was only undermined towards the end of that decade. David Alexander argues that any earlier declines were simply part of the global Long Depression, and that the Maritimes first fell behind the rest of Canada when the great boom period of the early 20th century had little effect on the region. E.R. Forbes, however, emphasizes that the precipitous decline did not occur until after the First World War during the 1920s when new railway policies were implemented. Forbes also contends that significant Canadian defence spending during the Second World War favoured powerful political interests in Central Canada such as C. D. Howe, when major Maritime shipyards and factories, as well as Canada's largest steel mill, located in Cape Breton Island, fared poorly.
One of the most important changes, and one that almost certainly had an effect, was the revolution in transportation that occurred at this time. The Maritimes were connected to central Canada by the Intercolonial Railway in the 1870s, removing a longstanding barrier to trade. For the first time this placed the Maritime manufacturers in direct competition with those of Central Canada. Maritime trading patterns shifted considerably from mainly trading with New England, Britain, and the Caribbean, to being focused on commerce with the Canadian interior, enforced by the federal government's tariff policies.
Coincident with the construction of railways in the region, the age of the wooden sailing ship began to come to an end, being replaced by larger and faster steel steamships. The Maritimes had long been a centre for shipbuilding, and this industry was hurt by the change. The larger ships were also less likely to call on the smaller population centres such as Saint John and Halifax, preferring to travel to cities like New York and Montreal. Even the Cunard Line, founded by Maritime-born Samuel Cunard, stopped making more than a single ceremonial voyage to Halifax each year.
More controversial than the role of technology is the argument over the role of politics in the origins of the region's decline. Confederation and the tariff and railway freight policies that followed have often been blamed for having a deleterious effect on the Maritime economies. Arguments have been made that the Maritimes' poverty was caused by control over policy by Central Canada which used the national structures for its own enrichment. This was the central view of the Maritime Rights Movement of the 1920s, which advocated greater local control over the region's finances. T.W. Acheson is one of the main proponents of this theory. He notes the growth that was occurring during the early years of the National Policy in Nova Scotia demonstrates how the effects of railway fares and the tariff structure helped undermine this growth. Capitalists from Central Canada purchased the factories and industries of the Maritimes from their bankrupt local owners and proceeded to close down many of them, consolidating the industry in Central Canada.
The policies in the early years of Confederation were designed by Central Canadian interests, and they reflected the needs of that region. The unified Canadian market and the introduction of railroads created a relative weakness in the Maritime economies. Central to this concept, according to Acheson, was the lack of metropolises in the Maritimes.
Montreal and Toronto were well-suited to benefit from the development of large-scale manufacturing and extensive railway systems in Quebec and Ontario, these being the goals of the Macdonald and Laurier governments. In the Maritimes the situation was very different. Today New Brunswick has several mid-sized centres in Saint John, Moncton, and Fredericton but no significant population centre. Nova Scotia has a growing metropolitan area surrounding Halifax, but a contracting population in industrial Cape Breton County, and several smaller centres in Bridgewater, Kentville, Yarmouth, and Pictou County. Prince Edward Island's only significant population centres are in Charlottetown and Summerside. During the late 19th and early 20th centuries, just the opposite was the case with little to no population concentration in major industrial centres as the predominantly rural resource-dependent Maritime economy continued on the same path as it had since European settlement on the region's shores.
Despite the region's absence of economic growth on the same scale as other parts of the nation, the Maritimes has changed markedly throughout the 20th century, partly as a result of global and national economic trends, and partly as a result of government intervention. Each sub-region within the Maritimes has developed over time to exploit different resources and expertise. Saint John became a centre of the timber trade and shipbuilding and is currently a centre for oil refining and some manufacturing. The northern New Brunswick communities of Edmundston, Campbellton, Dalhousie, Bathurst, and Miramichi are focused on the pulp and paper industry and some mining activity. Moncton was a centre for railways and has changed its focus to becoming a multi-modal transportation centre with associated manufacturing and retail interests. The Halifax metropolitan area has come to dominate peninsular Nova Scotia as a retail and service centre, but that province's industries were spread out from the coal and steel industries of industrial Cape Breton and Pictou counties, the mixed farming of the North Shore and Annapolis Valley, and the fishing industry was primarily focused on the South Shore and Eastern Shore. Prince Edward Island is largely dominated by farming, fishing, and tourism.
Given the geographic diversity of the various sub-regions within the Maritimes, policies to centralize the population and economy were not initially successful, thus Maritime factories closed while those in Ontario and Quebec prospered.
The traditional staples thesis, advocated by scholars such as S.A. Saunders, looks at the resource endowments of the Maritimes and argues that it was the decline of the traditional industries of shipbuilding and fishing that led to Maritime poverty, since these processes were rooted in geography, and thus all but inevitable. Kris Inwood has revived the staples approach and looks at a number of geographic weaknesses relative to Central Canada. He repeats Acheson's argument that the region lacks major urban centres, but adds that the Maritimes were also lacking the great rivers that led to the cheap and abundant hydro-electric power, key to Quebec and Ontario's urban and manufacturing development, that the extraction costs of Maritime resources were higher (particularly in the case of Cape Breton coal), and that the soils of the region were poorer and thus the agricultural sector weaker.
The Maritimes are the only provinces in Canada which entered Confederation in the 19th century and have kept their original colonial boundaries. All three provinces have the smallest land base in the country and have been forced to make do with resources within. By comparison, the former colony of the Province of Canada (divided into the District of Canada East, and the District of Canada West) and the western provinces were dozens of times larger and in some cases were expanded to take in territory formerly held in British Crown grants to companies such as the Hudson's Bay Company; in particular the November 19, 1869 sale of Rupert's Land to the Government of Canada under the Rupert's Land Act 1868 was facilitated in part by Maritime taxpayers. The economic riches of energy and natural resources held within this larger land base were only realized by other provinces during the 20th century.
The maritime provinces' main industry is fishing. Fishing can be found in any maritime province. This includes fishing for lobster, mackerel, tuna, salmon and many more kinds of fish. Oysters and salmonoid aquaculture is also increasingly important economically.
Nova Scotia is very strong in agriculture, forestry and fishing.
Tourism is important to the economy of PEI. Anne of Green Gables was written in PEI, and this attracts tourists to PEI. PEI is also known for its agriculture, mainly the potato, and fishing industries.
Agriculture and forestry are two prominent industries found in New Brunswick. Despite having an extensive coastline, New Brunswick's industrial sector has never been entirely reliant on the success of the fisheries. Likewise, the strong shipbuilding heritage of the province directly relates to its forest resources. Because of this, New Brunswickers tend to attribute their cultural heritage less with the sea and more with their forests and rivers.
Maritime conservatism since the Second World War has been very much part of the Red Tory tradition, key influences being former Premier of Nova Scotia and federal Progressive Conservative Party leader Robert Stanfield and New Brunswick Tory strategist Dalton Camp.
In recent years, the social democratic New Democratic Party (NDP) has made significant inroads both federally and provincially in the region. The NDP has elected members of parliament (MPs) from New Brunswick, but most of the focus of the party at the federal and provincial levels is currently in the Halifax area of Nova Scotia. Industrial Cape Breton has historically been a region of labour activism, electing Co-operative Commonwealth Federation (and later NDP) MPs, and even produced many early members of the Communist Party of Canada in the pre-Second World War era. In the 2004 federal election, the NDP captured 28.45% of the vote in Nova Scotia, more than any other province. In the 2009 provincial election the NDP formed a majority government, the first in the region.
In the 2004 federal election, the Conservatives had one of the worst showings in the region for a right-wing party, going back to Confederation, with the exception of the 1993 election. The Conservative party improved its seat count in the 2008 and elected 13 MPs in the 2011 election. However, in the 2015 election the Liberal Party won every seat in the region, defeating all of the Conservative (and NDP) challengers.
The Liberal Party of Canada has done well in the Maritimes in the past because of its interventionist policies. The Acadian Peninsula region of New Brunswick tends to vote for the Liberals or NDP for social political reasons, as well as treatment of the French by various parties. In the 1997 federal election, Prime Minister Jean Chrétien's Liberals endured a bitter defeat to the PCs and NDP in many ridings as a result of unpopular cuts to unemployment benefits for seasonal workers, as well as closures of several Canadian Forces bases, the refusal to honour a promise to rescind the Goods and Services Tax, cutbacks to provincial equalization payments, health care, post-secondary education and regional transportation infrastructure such as airports, fishing harbours, seaports, and railways . The Liberals held onto seats in Prince Edward Island and New Brunswick, while being shut out of Nova Scotia entirely, the second time in history (the only other time being the Diefenbaker sweep). In 2015 the Liberals won every seat in The Maritimes, defeating Conservative and NDP incumbents.
The Maritimes is currently represented in the Canadian Parliament by 25 Members of the House of Commons (Nova Scotia – 11, New Brunswick – 10, Prince Edward Island – 4) and 24 Senators (Nova Scotia and New Brunswick – 10 each, Prince Edward Island – 4). This level of representation was established at the time of Confederation when the Maritimes had a much larger proportion of the national population. The comparatively large population growth of western and central Canada during the immigration boom of the 20th century has reduced the Maritimes' proportion of the national population to less than 10%, resulting in an over-representation in Parliament, with some federal ridings having fewer than 35,000 people, compared to central and western Canada where ridings typically contain 100,000–120,000 people.
The Senate of Canada is structured along regional lines, giving an equal number of seats (24) to the Maritimes, Ontario, Quebec, and western Canada, in addition to the later entry of Newfoundland and Labrador, as well as the three territories. Enshrined in the Constitution, this model was developed to ensure that no area of the country is able to exert undue influence in the Senate. The Maritimes, with its much smaller proportion of the national population (compared to the time of Confederation) also have an over-representation in the Senate, particularly compared to the population growth of Ontario and the western provinces. This has led to calls to reform the Senate; however, such a move would entail constitutional changes.
Another factor related to the number of Senate seats is that a constitutional amendment in the early 20th century mandated that no province can have fewer Members of Parliament than it has senators. This court decision resulted from a complaint by the Government of Prince Edward Island after that province's number of MPs was proposed to change from 4 to 3, accounting for its declining proportion of the national population at that time. When PEI entered Confederation in 1873, it was accorded 6 MPs and 4 Senators; however this was reduced to 4 MPs by the early 20th century. Senators being appointed for life at this time, these coveted seats rarely went unfilled for a long period of time anywhere in Canada. As a result, PEI's challenge was accepted by the federal government, and its level of federal representation was secured. In the aftermath of the 1989 budget, which saw a filibuster by Liberal Senators in attempt to kill legislation creating the Goods and Services Tax, Prime Minister Brian Mulroney "stacked" the Senate by creating additional seats in several provinces across Canada, including New Brunswick; however, there was no attempt by these provinces to increase the number of MPs to reflect this change in Senate representation.
46°N 64°W / 46°N 64°W / 46; -64 | [
{
"paragraph_id": 0,
"text": "The Maritimes, also called the Maritime provinces, is a region of Eastern Canada consisting of three provinces: New Brunswick, Nova Scotia, and Prince Edward Island. The Maritimes had a population of 1,899,324 in 2021, which makes up 5.1% of Canada's population. Together with Canada's easternmost province, Newfoundland and Labrador, the Maritime provinces make up the region of Atlantic Canada.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Located along the Atlantic coast, various aquatic sub-basins are located in the Maritimes, such as the Gulf of Maine and Gulf of St. Lawrence. The region is located northeast of New England in the United States, south and southeast of Quebec's Gaspé Peninsula, and southwest of the island of Newfoundland. The notion of a Maritime Union has been proposed at various times in Canada's history; the first discussions in 1864 at the Charlottetown Conference contributed to Canadian Confederation. This movement formed the larger Dominion of Canada. The Mi'kmaq, Maliseet and Passamaquoddy people are indigenous to the Maritimes, while Acadian and British settlements date to the 17th century.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The word maritime is an adjective that means of the sea; thus any land adjacent to the sea can be considered maritime. But the term Maritimes has historically been collectively applied to New Brunswick, Nova Scotia and Prince Edward Island, all of which border the Atlantic Ocean.",
"title": "Name"
},
{
"paragraph_id": 3,
"text": "The pre-history of the Canadian Maritimes begins after the northerly retreat of glaciers at the end of the Wisconsin glaciation over 10,000 years ago; human settlement by First Nations began in the Maritimes with Paleo-Indians during the Early Period, ending around 6,000 years ago.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "The Middle Period, starting 6,000 years ago, and ending 3,000 years ago, was dominated by rising sea levels from the melting glaciers in polar regions. This is also when what is called the Laurentian tradition started among Archaic Indians, the term used for First Nations peoples of the time. Evidence of Archaic Indian burial mounds and other ceremonial sites existing in the Saint John River valley has been uncovered.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "The Late Period extended from 3,000 years ago until first contact with European settlers. This period was dominated by the organization of First Nations peoples into the Algonquian-speaking Abenaki Nation, which occupied territory largely in present-day interior Vermont, New Hampshire, and Maine, and the Mi'kmaq Nation, which inhabited all of Nova Scotia, Prince Edward Island, eastern New Brunswick and the southern Gaspé. The primarily agrarian Maliseet Nation settled throughout the Saint John River and Allagash River valleys of present-day New Brunswick and Maine. The Passamaquoddy Nation inhabited the northwestern coastal regions of the present-day Bay of Fundy. The Mi'kmaq Nation is also believed to have crossed the present-day Cabot Strait at around this time to settle on the south coast of Newfoundland, but they were a minority compared to the Beothuk Nation.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "After Newfoundland, the Maritimes were the second area in Canada to be settled by Europeans. There is evidence that Viking explorers discovered and settled in the Vinland region around 1000 AD, which is when the L'Anse aux Meadows settlement in Newfoundland and Labrador has been dated. They may have made further exploration into the present-day Maritimes and northeastern United States.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "Both Giovanni Caboto (John Cabot) and Giovanni da Verrazzano are reported to have sailed in or near Maritime waters during their voyages of discovery for England and France, respectively. Several Portuguese explorers / cartographers have also documented various parts of the Maritimes, namely Diogo Homem. However, it was French explorer Jacques Cartier who made the first detailed reconnaissance of the region for a European power and, in so doing, claimed the region for the King of France. Cartier was followed by nobleman Pierre Dugua, Sieur de Mons, who was accompanied by explorer / cartographer Samuel de Champlain in a 1604 expedition. During this they established the second permanent European settlement in what is now the United States and Canada, following Spain's settlement at St. Augustine in present-day Florida in the American South. Champlain's settlement at Saint Croix Island, later moved to Port Royal (Annapolis Royal), survived. By contrast, the ill-fated English settlement at Roanoke Colony off the southern American coast did not. The French settlement pre-dated the more successful English settlement at Jamestown in present-day Virginia by three years. Champlain was considered the founder of New France's province of Canada, which comprises much of the present-day lower St. Lawrence River valley in the province of Quebec.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "Champlain's success in the region, which came to be called Acadie, led to the fertile tidal marshes surrounding the southeastern and northeastern reaches of the Bay of Fundy being populated by French immigrants who called themselves Acadien. The Acadians eventually built small settlements throughout what is today mainland Nova Scotia and New Brunswick, as well as Île-Saint-Jean (Prince Edward Island), Île-Royale (Cape Breton Island), and other shorelines of the Gulf of St. Lawrence in present-day Newfoundland and Labrador, and Quebec. Acadian settlements had primarily agrarian economies. Early examples of Acadian fishing settlements developed in southwestern Nova Scotia and in Île-Royale, as well as along the south and west coasts of Newfoundland, the Gaspé Peninsula, and the present-day Côte-Nord region of Quebec. Most Acadian fishing activities were overshadowed by the much larger seasonal European fishing fleets that were based out of Newfoundland and took advantage of proximity to the Grand Banks.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "The growing English colonies along the American seaboard to the south and various European wars between England and France during the 17th and 18th centuries brought Acadia to the centre of world-scale geopolitical forces. In 1613, Virginian raiders captured Port-Royal, and in 1621 France ceded Acadia to Scotland's Sir William Alexander, who renamed it as Nova Scotia.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "By 1632, Acadia was returned from Scotland to France under the Treaty of Saint-Germain-en-Laye. The Port Royale settlement was moved to the site of nearby present-day Annapolis Royal. More French immigrant settlers, primarily from the Brittany, Normandie, and Vienne regions of France, continued to populate the colony of Acadia during the latter part of the 17th and early part of the 18th centuries. Important settlements also began in the Beaubassin region of the present-day Isthmus of Chignecto, and in the Saint John River valley, as well as smaller communities on Île-Saint-Jean and Île-Royale.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "In 1654, raiders from New England attacked Acadian settlements on the Annapolis Basin. Acadians lived with uncertainty throughout the English constitutional crises under Oliver Cromwell, and it was not until the Treaty of Breda in 1667 that France's claim to the region was reaffirmed. Colonial administration by France throughout the history of Acadia was of low priority. France's priorities were in settling and strengthening its claim on the larger territory of New France and the exploration and settlement of interior North America and the Mississippi River valley.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "Over 74 years (1689–1763) there were six colonial wars, which involved continuous warfare between New England and Acadia (see the French and Indian Wars reflecting English and French tensions in Europe, as well as Father Rale's War (Dummer's War) and Father Le Loutre's War). Throughout these wars, New England was allied with the Iroquois Confederacy based around the southern Great Lakes and west of the Hudson River. Acadian settlers were allied with the Wabanaki Confederacy. In the first war, King William's War (the North American theatre of the Nine Years' War), natives from the Maritime region participated in numerous attacks with the French on the Acadia / New England border in southern Maine (e.g., Raid on Salmon Falls). New England retaliatory raids on Acadia, such as the Raid on Chignecto, were conducted by Benjamin Church. In the second war, Queen Anne's War (the North American theatre of the War of the Spanish Succession), the British conducted the Conquest of Acadia, while the region remained primarily in control of Maliseet militia, Acadia militia and Mi'kmaw militia.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "In 1719, to further protect strategic interests in the Gulf of St. Lawrence and St. Lawrence River, France began the 20-year construction of a large fortress at Louisbourg on Île-Royale. Massachusetts was increasingly concerned over reports of the capabilities of this fortress, and of privateers staging out of its harbour to raid New England fishermen on the Grand Banks. In the fourth war, King George's War (the North American theatre of the War of the Austrian Succession), the British engaged successfully in the Siege of Louisbourg. The British returned control of Île-Royale to France with the fortress virtually intact three years later under the Treaty of Aix-la-Chapelle and the French reestablished their forces there.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "In 1749, to counter the rising threat of Louisbourg, Halifax was founded and the Royal Navy established a major naval base and citadel. The founding of Halifax sparked Father Le Loutre's War.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "During the sixth and final colonial war, the French and Indian War (the North American theatre of the Seven Years' War), the military conflicts in Nova Scotia continued. The British Conquest of Acadia happened in 1710. Over the next forty-five years, the Acadians refused to sign an unconditional oath of allegiance to Britain. During this time period Acadians participated in various militia operations against the British and maintained vital supply lines to the French Fortress of Louisbourg and Fort Beausejour. The British sought to neutralize any military threat Acadians posed and to interrupt the vital supply lines Acadians provided to Louisbourg by deporting Acadians from Acadia.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "The British began the Expulsion of the Acadians with the Bay of Fundy campaign in 1775. Over the next nine years over 12,000 Acadians of 15,000 were removed from Nova Scotia.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "In 1758, the fortress of Louisbourg was laid siege for a second time within 15 years, this time by more than 27,000 British soldiers and sailors with over 150 warships. After the French surrender, Louisbourg was thoroughly destroyed by British engineers to ensure it would never be reclaimed. With the fall of Louisbourg, French and Mi'kmaw resistance in the region crumbled. British forces seized remaining French control over Acadia in the coming months, with Île-Saint-Jean falling in 1759 to British forces on their way to Quebec City for the first siege of Quebec and the ensuing Battle of the Plains of Abraham.",
"title": "History"
},
{
"paragraph_id": 18,
"text": "The war ended and Britain had gained control over the entire Maritime region and the Indigenous people signed the Halifax Treaties.",
"title": "History"
},
{
"paragraph_id": 19,
"text": "Following the Seven Years' War, empty Acadian lands were settled first by 8,000 New England Planters and then by immigrants brought from Yorkshire. Île-Royale was renamed Cape Breton Island and incorporated into the Colony of Nova Scotia. Some of the Acadians who had been deported came back but went to the eastern coasts of New Brunswick.",
"title": "History"
},
{
"paragraph_id": 20,
"text": "Both the colonies of Nova Scotia (present-day Nova Scotia and New Brunswick) and St. John's Island (Prince Edward Island) were affected by the American Revolutionary War, largely by privateering against American shipping, but several coastal communities were also the targets of American raiders. Charlottetown, the capital of the new colony of St. John's Island, was ransacked in 1775 with the provincial secretary kidnapped and the Great Seal stolen. The largest military action in the Maritimes during the revolutionary war was the attack on Fort Cumberland (the renamed Fort Beauséjour) in 1776 by a force of American sympathizers led by Jonathan Eddy. The fort was partially overrun after a month-long siege, but the attackers were ultimately repelled after the arrival of British reinforcements from Halifax.",
"title": "History"
},
{
"paragraph_id": 21,
"text": "The most significant impact from this war was the settling of large numbers of Loyalist refugees in the region (34,000 to the 17,000 settlers already there), especially in Shelburne and Parrtown (Saint John). Following the Treaty of Paris in 1783, Loyalist settlers in what would become New Brunswick persuaded British administrators to split the Colony of Nova Scotia to create the new colony of New Brunswick in 1784. At the same time, another part of the Colony of Nova Scotia, Cape Breton Island, was split off to become the Colony of Cape Breton Island. The Colony of St. John's Island was renamed to Prince Edward Island on November 29, 1798.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "The War of 1812 had some effect on the shipping industry in the Maritime colonies of New Brunswick, Nova Scotia, Prince Edward Island, and Cape Breton Island; however, the significant Royal Navy presence in Halifax and other ports in the region prevented any serious attempts by American raiders. Maritime and American privateers targeted unprotected shipping of both the United States and Britain respectively, further reducing trade. New Brunswick's section of the Canada–US border did not have any significant action during this conflict, although British forces did occupy a portion of coastal Maine at one point. The most significant incident from this war which occurred in the Maritimes was the British capture and detention of USS Chesapeake, an American frigate in Halifax.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "In 1820, the Colony of Cape Breton Island was merged back into the Colony of Nova Scotia for the second time by the British government.",
"title": "History"
},
{
"paragraph_id": 24,
"text": "British settlement of the Maritimes, as the colonies of Nova Scotia, New Brunswick and Prince Edward Island came to be known, accelerated throughout the late 18th century and into the 19th century with significant immigration to the region as a result of Scottish migrants displaced by the Highland Clearances and Irish escaping the Great Irish Famine (1845–1849). As a result, significant portions of the three provinces are influenced by Celtic heritages, with Scottish Gaelic (and to a lesser degree, Irish Gaelic) having been widely spoken, particularly in Cape Breton, although it is less prevalent today.",
"title": "History"
},
{
"paragraph_id": 25,
"text": "During the American Civil War, a significant number of Maritimers volunteered to fight for the armies of the Union, while a small handful joined the Confederate Army. However, the majority of the conflict's impact was felt in the shipping industry. Maritime shipping boomed during the war due to large-scale Northern imports of war supplies which were often carried by Maritime ships as Union ships were vulnerable to Confederate naval raiders. Diplomatic tensions between Britain and the Unionist North had deteriorated after some interests in Britain expressed support for the secessionist Confederate South. The Union Navy, although much smaller than the British Royal Navy and no threat to the Maritimes, did posture off Maritime coasts at times chasing Confederate naval ships which sought repairs and reprovisioning in Maritime ports, especially Halifax.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "The immense size of the Union Army (the largest on the planet toward the end of the Civil War), however, was viewed with increasing concern by Maritimers throughout the early 1860s. Another concern was the rising threat of Fenian raids on border communities in New Brunswick by the Fenian Brotherhood seeking to end British rule in Ireland. This combination of events, coupled with an ongoing decline in British military and economic support to the region as the Home Office favoured newer colonial endeavours in Africa and elsewhere, led to a call among Maritime politicians for a conference on Maritime Union, to be held in early September 1864 in Charlottetown – chosen in part because of Prince Edward Island's reluctance to give up its jurisdictional sovereignty in favour of uniting with New Brunswick and Nova Scotia into a single colony. New Brunswick and Nova Scotia felt that if the union conference were held in Charlottetown, they might be able to convince Island politicians to support the proposal.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "The Charlottetown Conference, as it came to be called, was also attended by a slew of visiting delegates from the neighbouring Crown colony, the Province of Canada, who had largely arrived at their own invitation with their own agenda. This agenda saw the conference dominated by discussions of creating an even larger union of the entire territory of British North America into a united colony. The Charlottetown Conference ended with an agreement to meet the following month in Quebec City, where more formal discussions ensued, culminating with meetings in London and the signing of the British North America Act, 1867 (BNA Act). Of the Maritime provinces, only Nova Scotia and New Brunswick were initially party to the BNA Act: Prince Edward Island's reluctance, combined with a booming agricultural and fishing export economy having led to that colony opting not to sign on.",
"title": "History"
},
{
"paragraph_id": 28,
"text": "The major communities of the region include Halifax and Cape Breton in Nova Scotia, Moncton, Saint John, and Fredericton in New Brunswick, and Charlottetown in Prince Edward Island.",
"title": "Major population centres"
},
{
"paragraph_id": 29,
"text": "In spite of its name, The Maritimes has a humid continental climate of the warm-summer subtype. Especially in coastal Nova Scotia, differences between summers and winters are narrow compared to the rest of Canada. The inland climate of New Brunswick is in stark contrast during winter, resembling more continental areas. Summers are somewhat tempered by the marine influence throughout the provinces, but due to the southerly parallels still remain similar to more continental areas further west. Yarmouth in Nova Scotia has significant marine influence to have a borderline oceanic microclimate, but winter nights are still cold even in all coastal areas. The northernmost areas of New Brunswick are only just above subarctic with very cold continental winters.",
"title": "Climate"
},
{
"paragraph_id": 30,
"text": "The Maritimes were predominantly rural until recent decades, having resource-based economies of fishing, agriculture, forestry, and coal mining.",
"title": "Demographics"
},
{
"paragraph_id": 31,
"text": "Maritimers are predominantly of west European origin: Scottish Canadians, Irish Canadians, English Canadians, and Acadians. New Brunswick, in general, differs from the other two Maritime provinces in that it has a much higher Francophone population. There was once a significant Canadian Gaelic speaking population. Helen Creighton recorded Celtic traditions of rural Nova Scotia in the mid-1900s.",
"title": "Demographics"
},
{
"paragraph_id": 32,
"text": "There are Black Canadians who are mostly descendants of Black Loyalists or black refugees from the War of 1812. This Maritime population is mainly among Black Nova Scotians.",
"title": "Demographics"
},
{
"paragraph_id": 33,
"text": "There are Mi'kmaq reserves in all three provinces, and a smaller population of the Maliseet in western New Brunswick.",
"title": "Demographics"
},
{
"paragraph_id": 34,
"text": "Given the small population of the region (compared with the Central Canadian provinces or the New England states), the regional economy is a net exporter of natural resources, manufactured goods, and services. The regional economy has long been tied to natural resources such as fishing, logging, farming, and mining activities. Significant industrialization in the second half of the 19th century brought steel to Trenton, Nova Scotia, and subsequent creation of a widespread industrial base to take advantage of the region's large underground coal deposits. After Confederation, however, this industrial base withered with technological change, and trading links to Europe and the U.S. were reduced in favour of those with Ontario and Quebec. In recent years, however, the Maritime regional economy has begun increased contributions from manufacturing again and the steady transition to a service economy.",
"title": "Economy"
},
{
"paragraph_id": 35,
"text": "Important manufacturing centres in the region include Pictou County, Truro, the Annapolis Valley and the South Shore, and the Strait of Canso area in Nova Scotia, as well as Summerside in Prince Edward Island, and the Miramichi area, the North Shore and the upper Saint John River valley of New Brunswick.",
"title": "Economy"
},
{
"paragraph_id": 36,
"text": "Some predominantly coastal areas have become major tourist centres, such as parts of Prince Edward Island, Cape Breton Island, the South Shore of Nova Scotia and the Gulf of St. Lawrence and Bay of Fundy coasts of New Brunswick. Additional service-related industries in information technology, pharmaceuticals, insurance and financial sectors—as well as research-related spin-offs from the region's numerous universities and colleges—are significant economic contributors.",
"title": "Economy"
},
{
"paragraph_id": 37,
"text": "Another important contribution to Nova Scotia's provincial economy is through spin-offs and royalties relating to off-shore petroleum exploration and development. Mostly concentrated on the continental shelf of the province's Atlantic coast in the vicinity of Sable Island, exploration activities began in the 1960s and resulted in the first commercial production field for oil beginning in the 1980s. Natural gas was also discovered in the 1980s during exploration work, and this is being commercially recovered, beginning in the late 1990s. Initial optimism in Nova Scotia about the potential of off-shore resources appears to have diminished with the lack of new discoveries, although exploration work continues and is moving farther off-shore into waters on the continental margin.",
"title": "Economy"
},
{
"paragraph_id": 38,
"text": "Regional transportation networks have also changed significantly in recent decades with port modernizations, with new freeway and ongoing arterial highway construction, the abandonment of various low-capacity railway branch lines (including the entire railway system of Prince Edward Island and southwestern Nova Scotia), and the construction of the Canso Causeway and the Confederation Bridge. There have been airport improvements at various centres providing improved connections to markets and destinations in the rest of North America and overseas.",
"title": "Economy"
},
{
"paragraph_id": 39,
"text": "Improvements in infrastructure and the regional economy notwithstanding, the three provinces remain one of the poorer regions of Canada. While urban areas are growing and thriving, economic adjustments have been harsh in rural and resource-dependent communities, and emigration has been an ongoing phenomenon for some parts of the region. Another problem is seen in the lower average wages and family incomes within the region. Property values are depressed, resulting in a smaller tax base for these three provinces, particularly when compared with the national average which benefits from central and western Canadian economic growth.",
"title": "Economy"
},
{
"paragraph_id": 40,
"text": "This has been particularly problematic with the growth of the welfare state in Canada since the 1950s, resulting in the need to draw upon equalization payments to provide nationally mandated social services. Since the 1990s the region has experienced an exceptionally tumultuous period in its regional economy with the collapse of large portions of the ground fishery throughout Atlantic Canada, the closing of coal mines and a steel mill on Cape Breton Island, and the closure of military bases in all three provinces. That being said, New Brunswick has one of the largest military bases in the Commonwealth of Nations (CFB Gagetown), which plays a significant role in the cultural and economic spheres of Fredericton, the province's capital city.",
"title": "Economy"
},
{
"paragraph_id": 41,
"text": "While the economic underperformance of the Maritime economy has been long lasting, it has not always been present. The mid-19th century, especially the 1850s and 1860s, has long been seen as a \"Golden Age\" in the Maritimes. Growth was strong, and the region had one of British North America's most extensive manufacturing sectors as well as a large international shipping industry. The question of why the Maritimes fell from being a centre of Canadian manufacturing to being an economic hinterland is thus a central one to the study of the region's pecuniary difficulties. The period in which the decline occurred had a great many potential culprits. In 1867 Nova Scotia and New Brunswick merged with the Canadas in Confederation, with Prince Edward Island joining them six years later in 1873. Canada was formed only a year after free trade with the United States (in the form of the Reciprocity Treaty) had ended. In the 1870s John A. Macdonald's National Policy was implemented, creating a system of protective tariffs around the new nation. Throughout the period there was also significant technological change both in the production and transportation of goods.",
"title": "Economy"
},
{
"paragraph_id": 42,
"text": "Several scholars have explored the so-called \"Golden Age\" of the Maritimes in the years just before Confederation. In Nova Scotia, the population grew steadily from 277,000 in 1851 to 388,000 in 1871, mostly from natural increase since immigration was slight. The era has been called a Golden Age, but that was a myth created in the 1930s to lure tourists to a romantic era of tall ships and antiques. Recent historians using census data have shown that is a fallacy. In 1851–1871 there was an overall increase in per capita wealth holding. However most of the gains went to the urban elite class, especially businessmen and financiers living in Halifax. The wealth held by the top 10% rose considerably over the two decades, but there was little improvement in the wealth levels in rural areas, which comprised the great majority of the population. Likewise Gwyn reports that gentlemen, merchants, bankers, colliery owners, shipowners, shipbuilders, and master mariners flourished. However the great majority of families were headed by farmers, fishermen, craftsmen and labourer. Most of them—and many widows as well—lived in poverty. Out migration became an increasingly necessary option. Thus the era was indeed a golden age but only for a small but powerful and highly visible elite.",
"title": "Economy"
},
{
"paragraph_id": 43,
"text": "The cause of economic malaise in the Maritimes is an issue of great debate and controversy among historians, economists, and geographers. The differing opinions can approximately be divided into the \"structuralists\", who argue that poor policy decisions are to blame, and the others, who argue that unavoidable technological and geographical factors caused the decline.",
"title": "Economy"
},
{
"paragraph_id": 44,
"text": "The exact date that the Maritimes began to fall behind the rest of Canada is difficult to determine. Historian Kris Inwood places the date very early, at least in Nova Scotia, finding clear signs that the Maritimes \"Golden Age\" of the mid-19th century was over by 1870, before Confederation or the National Policy could have had any significant impact. Richard Caves places the date closer to 1885. T.W. Acheson takes a similar view and provides considerable evidence that the early 1880s were in fact a booming period in Nova Scotia and this growth was only undermined towards the end of that decade. David Alexander argues that any earlier declines were simply part of the global Long Depression, and that the Maritimes first fell behind the rest of Canada when the great boom period of the early 20th century had little effect on the region. E.R. Forbes, however, emphasizes that the precipitous decline did not occur until after the First World War during the 1920s when new railway policies were implemented. Forbes also contends that significant Canadian defence spending during the Second World War favoured powerful political interests in Central Canada such as C. D. Howe, when major Maritime shipyards and factories, as well as Canada's largest steel mill, located in Cape Breton Island, fared poorly.",
"title": "Economy"
},
{
"paragraph_id": 45,
"text": "One of the most important changes, and one that almost certainly had an effect, was the revolution in transportation that occurred at this time. The Maritimes were connected to central Canada by the Intercolonial Railway in the 1870s, removing a longstanding barrier to trade. For the first time this placed the Maritime manufacturers in direct competition with those of Central Canada. Maritime trading patterns shifted considerably from mainly trading with New England, Britain, and the Caribbean, to being focused on commerce with the Canadian interior, enforced by the federal government's tariff policies.",
"title": "Economy"
},
{
"paragraph_id": 46,
"text": "Coincident with the construction of railways in the region, the age of the wooden sailing ship began to come to an end, being replaced by larger and faster steel steamships. The Maritimes had long been a centre for shipbuilding, and this industry was hurt by the change. The larger ships were also less likely to call on the smaller population centres such as Saint John and Halifax, preferring to travel to cities like New York and Montreal. Even the Cunard Line, founded by Maritime-born Samuel Cunard, stopped making more than a single ceremonial voyage to Halifax each year.",
"title": "Economy"
},
{
"paragraph_id": 47,
"text": "More controversial than the role of technology is the argument over the role of politics in the origins of the region's decline. Confederation and the tariff and railway freight policies that followed have often been blamed for having a deleterious effect on the Maritime economies. Arguments have been made that the Maritimes' poverty was caused by control over policy by Central Canada which used the national structures for its own enrichment. This was the central view of the Maritime Rights Movement of the 1920s, which advocated greater local control over the region's finances. T.W. Acheson is one of the main proponents of this theory. He notes the growth that was occurring during the early years of the National Policy in Nova Scotia demonstrates how the effects of railway fares and the tariff structure helped undermine this growth. Capitalists from Central Canada purchased the factories and industries of the Maritimes from their bankrupt local owners and proceeded to close down many of them, consolidating the industry in Central Canada.",
"title": "Economy"
},
{
"paragraph_id": 48,
"text": "The policies in the early years of Confederation were designed by Central Canadian interests, and they reflected the needs of that region. The unified Canadian market and the introduction of railroads created a relative weakness in the Maritime economies. Central to this concept, according to Acheson, was the lack of metropolises in the Maritimes.",
"title": "Economy"
},
{
"paragraph_id": 49,
"text": "Montreal and Toronto were well-suited to benefit from the development of large-scale manufacturing and extensive railway systems in Quebec and Ontario, these being the goals of the Macdonald and Laurier governments. In the Maritimes the situation was very different. Today New Brunswick has several mid-sized centres in Saint John, Moncton, and Fredericton but no significant population centre. Nova Scotia has a growing metropolitan area surrounding Halifax, but a contracting population in industrial Cape Breton County, and several smaller centres in Bridgewater, Kentville, Yarmouth, and Pictou County. Prince Edward Island's only significant population centres are in Charlottetown and Summerside. During the late 19th and early 20th centuries, just the opposite was the case with little to no population concentration in major industrial centres as the predominantly rural resource-dependent Maritime economy continued on the same path as it had since European settlement on the region's shores.",
"title": "Economy"
},
{
"paragraph_id": 50,
"text": "Despite the region's absence of economic growth on the same scale as other parts of the nation, the Maritimes has changed markedly throughout the 20th century, partly as a result of global and national economic trends, and partly as a result of government intervention. Each sub-region within the Maritimes has developed over time to exploit different resources and expertise. Saint John became a centre of the timber trade and shipbuilding and is currently a centre for oil refining and some manufacturing. The northern New Brunswick communities of Edmundston, Campbellton, Dalhousie, Bathurst, and Miramichi are focused on the pulp and paper industry and some mining activity. Moncton was a centre for railways and has changed its focus to becoming a multi-modal transportation centre with associated manufacturing and retail interests. The Halifax metropolitan area has come to dominate peninsular Nova Scotia as a retail and service centre, but that province's industries were spread out from the coal and steel industries of industrial Cape Breton and Pictou counties, the mixed farming of the North Shore and Annapolis Valley, and the fishing industry was primarily focused on the South Shore and Eastern Shore. Prince Edward Island is largely dominated by farming, fishing, and tourism.",
"title": "Economy"
},
{
"paragraph_id": 51,
"text": "Given the geographic diversity of the various sub-regions within the Maritimes, policies to centralize the population and economy were not initially successful, thus Maritime factories closed while those in Ontario and Quebec prospered.",
"title": "Economy"
},
{
"paragraph_id": 52,
"text": "The traditional staples thesis, advocated by scholars such as S.A. Saunders, looks at the resource endowments of the Maritimes and argues that it was the decline of the traditional industries of shipbuilding and fishing that led to Maritime poverty, since these processes were rooted in geography, and thus all but inevitable. Kris Inwood has revived the staples approach and looks at a number of geographic weaknesses relative to Central Canada. He repeats Acheson's argument that the region lacks major urban centres, but adds that the Maritimes were also lacking the great rivers that led to the cheap and abundant hydro-electric power, key to Quebec and Ontario's urban and manufacturing development, that the extraction costs of Maritime resources were higher (particularly in the case of Cape Breton coal), and that the soils of the region were poorer and thus the agricultural sector weaker.",
"title": "Economy"
},
{
"paragraph_id": 53,
"text": "The Maritimes are the only provinces in Canada which entered Confederation in the 19th century and have kept their original colonial boundaries. All three provinces have the smallest land base in the country and have been forced to make do with resources within. By comparison, the former colony of the Province of Canada (divided into the District of Canada East, and the District of Canada West) and the western provinces were dozens of times larger and in some cases were expanded to take in territory formerly held in British Crown grants to companies such as the Hudson's Bay Company; in particular the November 19, 1869 sale of Rupert's Land to the Government of Canada under the Rupert's Land Act 1868 was facilitated in part by Maritime taxpayers. The economic riches of energy and natural resources held within this larger land base were only realized by other provinces during the 20th century.",
"title": "Economy"
},
{
"paragraph_id": 54,
"text": "The maritime provinces' main industry is fishing. Fishing can be found in any maritime province. This includes fishing for lobster, mackerel, tuna, salmon and many more kinds of fish. Oysters and salmonoid aquaculture is also increasingly important economically.",
"title": "Industries"
},
{
"paragraph_id": 55,
"text": "Nova Scotia is very strong in agriculture, forestry and fishing.",
"title": "Industries"
},
{
"paragraph_id": 56,
"text": "Tourism is important to the economy of PEI. Anne of Green Gables was written in PEI, and this attracts tourists to PEI. PEI is also known for its agriculture, mainly the potato, and fishing industries.",
"title": "Industries"
},
{
"paragraph_id": 57,
"text": "Agriculture and forestry are two prominent industries found in New Brunswick. Despite having an extensive coastline, New Brunswick's industrial sector has never been entirely reliant on the success of the fisheries. Likewise, the strong shipbuilding heritage of the province directly relates to its forest resources. Because of this, New Brunswickers tend to attribute their cultural heritage less with the sea and more with their forests and rivers.",
"title": "Industries"
},
{
"paragraph_id": 58,
"text": "Maritime conservatism since the Second World War has been very much part of the Red Tory tradition, key influences being former Premier of Nova Scotia and federal Progressive Conservative Party leader Robert Stanfield and New Brunswick Tory strategist Dalton Camp.",
"title": "Politics"
},
{
"paragraph_id": 59,
"text": "In recent years, the social democratic New Democratic Party (NDP) has made significant inroads both federally and provincially in the region. The NDP has elected members of parliament (MPs) from New Brunswick, but most of the focus of the party at the federal and provincial levels is currently in the Halifax area of Nova Scotia. Industrial Cape Breton has historically been a region of labour activism, electing Co-operative Commonwealth Federation (and later NDP) MPs, and even produced many early members of the Communist Party of Canada in the pre-Second World War era. In the 2004 federal election, the NDP captured 28.45% of the vote in Nova Scotia, more than any other province. In the 2009 provincial election the NDP formed a majority government, the first in the region.",
"title": "Politics"
},
{
"paragraph_id": 60,
"text": "In the 2004 federal election, the Conservatives had one of the worst showings in the region for a right-wing party, going back to Confederation, with the exception of the 1993 election. The Conservative party improved its seat count in the 2008 and elected 13 MPs in the 2011 election. However, in the 2015 election the Liberal Party won every seat in the region, defeating all of the Conservative (and NDP) challengers.",
"title": "Politics"
},
{
"paragraph_id": 61,
"text": "The Liberal Party of Canada has done well in the Maritimes in the past because of its interventionist policies. The Acadian Peninsula region of New Brunswick tends to vote for the Liberals or NDP for social political reasons, as well as treatment of the French by various parties. In the 1997 federal election, Prime Minister Jean Chrétien's Liberals endured a bitter defeat to the PCs and NDP in many ridings as a result of unpopular cuts to unemployment benefits for seasonal workers, as well as closures of several Canadian Forces bases, the refusal to honour a promise to rescind the Goods and Services Tax, cutbacks to provincial equalization payments, health care, post-secondary education and regional transportation infrastructure such as airports, fishing harbours, seaports, and railways . The Liberals held onto seats in Prince Edward Island and New Brunswick, while being shut out of Nova Scotia entirely, the second time in history (the only other time being the Diefenbaker sweep). In 2015 the Liberals won every seat in The Maritimes, defeating Conservative and NDP incumbents.",
"title": "Politics"
},
{
"paragraph_id": 62,
"text": "The Maritimes is currently represented in the Canadian Parliament by 25 Members of the House of Commons (Nova Scotia – 11, New Brunswick – 10, Prince Edward Island – 4) and 24 Senators (Nova Scotia and New Brunswick – 10 each, Prince Edward Island – 4). This level of representation was established at the time of Confederation when the Maritimes had a much larger proportion of the national population. The comparatively large population growth of western and central Canada during the immigration boom of the 20th century has reduced the Maritimes' proportion of the national population to less than 10%, resulting in an over-representation in Parliament, with some federal ridings having fewer than 35,000 people, compared to central and western Canada where ridings typically contain 100,000–120,000 people.",
"title": "Politics"
},
{
"paragraph_id": 63,
"text": "The Senate of Canada is structured along regional lines, giving an equal number of seats (24) to the Maritimes, Ontario, Quebec, and western Canada, in addition to the later entry of Newfoundland and Labrador, as well as the three territories. Enshrined in the Constitution, this model was developed to ensure that no area of the country is able to exert undue influence in the Senate. The Maritimes, with its much smaller proportion of the national population (compared to the time of Confederation) also have an over-representation in the Senate, particularly compared to the population growth of Ontario and the western provinces. This has led to calls to reform the Senate; however, such a move would entail constitutional changes.",
"title": "Politics"
},
{
"paragraph_id": 64,
"text": "Another factor related to the number of Senate seats is that a constitutional amendment in the early 20th century mandated that no province can have fewer Members of Parliament than it has senators. This court decision resulted from a complaint by the Government of Prince Edward Island after that province's number of MPs was proposed to change from 4 to 3, accounting for its declining proportion of the national population at that time. When PEI entered Confederation in 1873, it was accorded 6 MPs and 4 Senators; however this was reduced to 4 MPs by the early 20th century. Senators being appointed for life at this time, these coveted seats rarely went unfilled for a long period of time anywhere in Canada. As a result, PEI's challenge was accepted by the federal government, and its level of federal representation was secured. In the aftermath of the 1989 budget, which saw a filibuster by Liberal Senators in attempt to kill legislation creating the Goods and Services Tax, Prime Minister Brian Mulroney \"stacked\" the Senate by creating additional seats in several provinces across Canada, including New Brunswick; however, there was no attempt by these provinces to increase the number of MPs to reflect this change in Senate representation.",
"title": "Politics"
},
{
"paragraph_id": 65,
"text": "46°N 64°W / 46°N 64°W / 46; -64",
"title": "External links"
}
] | The Maritimes, also called the Maritime provinces, is a region of Eastern Canada consisting of three provinces: New Brunswick, Nova Scotia, and Prince Edward Island. The Maritimes had a population of 1,899,324 in 2021, which makes up 5.1% of Canada's population. Together with Canada's easternmost province, Newfoundland and Labrador, the Maritime provinces make up the region of Atlantic Canada. Located along the Atlantic coast, various aquatic sub-basins are located in the Maritimes, such as the Gulf of Maine and Gulf of St. Lawrence. The region is located northeast of New England in the United States, south and southeast of Quebec's Gaspé Peninsula, and southwest of the island of Newfoundland. The notion of a Maritime Union has been proposed at various times in Canada's history; the first discussions in 1864 at the Charlottetown Conference contributed to Canadian Confederation. This movement formed the larger Dominion of Canada. The Mi'kmaq, Maliseet and Passamaquoddy people are indigenous to the Maritimes, while Acadian and British settlements date to the 17th century. | 2001-12-07T19:03:39Z | 2023-12-17T19:34:51Z | [
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7,383 | Cyril of Alexandria | Cyril of Alexandria (Ancient Greek: Κύριλλος Ἀλεξανδρείας; Coptic: Ⲡⲁⲡⲁ Ⲕⲩⲣⲓⲗⲗⲟⲩ ⲁ̅ or ⲡⲓ̀ⲁⲅⲓⲟⲥ Ⲕⲓⲣⲓⲗⲗⲟⲥ; c. 376–444) was the Patriarch of Alexandria from 412 to 444. He was enthroned when the city was at the height of its influence and power within the Roman Empire. Cyril wrote extensively and was a major player in the Christological controversies of the late-4th and 5th centuries. He was a central figure in the Council of Ephesus in 431, which led to the deposition of Nestorius as Patriarch of Constantinople. Cyril is counted among the Church Fathers and also as a Doctor of the Church, and his reputation within the Christian world has resulted in his titles Pillar of Faith and Seal of all the Fathers. The Nestorian bishops at their synod at the Council of Ephesus declared him a heretic, labelling him as a "monster, born and educated for the destruction of the church."
Cyril is well known for his dispute with Nestorius and his supporter, Patriarch John of Antioch, whom Cyril excluded from the Council of Ephesus for arriving late. He is also known for his expulsion of Novatians and Jews from Alexandria and for inflaming tensions that led to the murder of the Hellenistic philosopher Hypatia by a Christian mob. Historians disagree over the extent of his responsibility in this.
Cyril tried to oblige the pious Christian emperor Theodosius II (AD 408–450) to himself by dedicating his Paschal table to him. Cyril's Paschal table was provided with a Metonic basic structure in the form of a 19-year lunar cycle adopted by him around AD 425, which was very different from the first Metonic 19-year lunar cycle invented around AD 260 by Anatolius, but exactly equal to the lunar cycle which had been introduced around AD 412 by Annianus; the Julian equivalent of this Alexandrian cycle adopted by Cyril and nowadays referred to as the 'classical (Alexandrian) 19-year lunar cycle' would emerge a century later in Rome as the basic structure of Dionysius Exiguus’ Paschal table (AD 525).
The Catholic Church did not commemorate Saint Cyril in the Tridentine calendar: it added his feast only in 1882, assigning to it the date of 9 February. This date is used by the Western Rite Orthodox Church. Yet the 1969 Catholic Calendar revision moved it to 27 June, considered to be the day of the saint's death, as celebrated by the Coptic Orthodox Church. The same date has been chosen for the Lutheran calendar. The Eastern Orthodox and Byzantine Catholic Churches celebrate his feast day on 9 June and also, together with Pope Athanasius I of Alexandria, on 18 January.
Cyril is remembered in the Church of England with a commemoration on 27 June.
Little is known for certain of Cyril's early life. He was born circa 376, in the town of Didouseya, Egypt, modern-day El-Mahalla El-Kubra. A few years after his birth, his maternal uncle Theophilus rose to the powerful position of Patriarch of Alexandria. His mother remained close to her brother and under his guidance, Cyril was well educated. His writings show his knowledge of Christian writers of his day, including Eusebius, Origen, Didymus the Blind, and writers of the Church of Alexandria. He received the formal Christian education standard for his day: he studied grammar from age twelve to fourteen (390–392), rhetoric and humanities from fifteen to twenty (393–397) and finally theology and biblical studies (398–402).
In 403, he accompanied his uncle to attend the "Synod of the Oak" in Constantinople, which deposed John Chrysostom as Archbishop of Constantinople. The prior year, Theophilus had been summoned by the emperor to Constantinople to apologize before a synod, over which Chrysostom would preside, on account of several charges which were brought against him by certain Egyptian monks. Theophilus had them persecuted as Origenists. Placing himself at the head of soldiers and armed servants, Theophilus had marched against the monks, burned their dwellings, and ill-treated those whom he captured. Theophilus arrived at Constantinople with twenty-nine of his suffragan bishops, and conferring with those opposed to the Archbishop, drafted a long list of largely unfounded accusations against Chrysostom, who refused to recognize the legality of a synod in which his open enemies were judges. Chrysostom was subsequently deposed.
Theophilus died on 15 October 412, and Cyril was made Pope or Patriarch of Alexandria on 18 October 412, but only after a riot between his supporters and those of his rival Archdeacon Timotheus. According to Socrates Scholasticus, the Alexandrians were always rioting.
Thus, Cyril followed his uncle in a position that had become powerful and influential, rivalling that of the prefect in a time of turmoil and frequently violent conflict between the cosmopolitan city's pagan, Jewish, and Christian inhabitants. He began to exert his authority by causing the churches of the Novatianists to be closed and their sacred vessels to be seized.
Orestes, Praefectus augustalis of the Diocese of Egypt, steadfastly resisted Cyril's ecclesiastical encroachment upon secular prerogatives.
Tension between the parties increased when in 415, Orestes published an edict that outlined new regulations regarding mime shows and dancing exhibitions in the city, which attracted large crowds and were commonly prone to civil disorder of varying degrees. Crowds gathered to read the edict shortly after it was posted in the city's theater. Cyril sent the grammaticus Hierax to discover the content of the edict. The edict angered Christians as well as Jews. At one such gathering, Hierax read the edict and applauded the new regulations, prompting a disturbance. Many people felt that Hierax was attempting to incite the crowd—particularly the Jews—into sedition. Orestes had Hierax tortured in public in a theatre. This order had two aims: one to quell the riot, the other to mark Orestes' authority over Cyril.
Socrates Scholasticus recounts that upon hearing of Hierex's severe and public punishment, Cyril threatened to retaliate against the Jews of Alexandria with "the utmost severities" if the harassment of Christians did not cease immediately. In response to Cyril's threat, the Jews of Alexandria grew even more furious, eventually resorting to violence against the Christians. They plotted to flush the Christians out at night by running through the streets claiming that the Church of Alexander was on fire. When Christians responded to what they were led to believe was the burning down of their church, "the Jews immediately fell upon and slew them" by using rings to recognize one another in the dark and killing everyone else in sight. When the morning came, Cyril, along with many of his followers, took to the city's synagogues in search of the perpetrators of the massacre.
According to Socrates, after Cyril rounded up all the Jews in Alexandria he ordered them to be stripped of all possessions, banished them from Alexandria, and allowed their goods to be pillaged by the remaining citizens of Alexandria. Scholasticus alleges that all the Jews of Alexandria were banished, while John of Nikiû says it was only those involved in the ambush and massacre. Susan Wessel says that, while it is not clear whether Scholasticus was a Novationist (whose churches Cyril had closed), he was apparently sympathetic towards them, and repeatedly accuses Cyril of abusing his episcopal power by infringing on the rights and duties of the secular authorities. Wessel says, however, "...Socrates probably does not provide accurate and unambiguous information about Cyril's relationship to imperial authority".
Nonetheless, with Cyril's banishment of the Jews, however many, "Orestes [...] was filled with great indignation at these transactions, and was excessively grieved that a city of such magnitude should have been suddenly bereft of so large a portion of its population." Because of this, the feud between Cyril and Orestes intensified, and both men wrote to the emperor regarding the situation. Eventually, Cyril attempted to reach out to Orestes through several peace overtures, including attempted mediation and, when that failed, showed him the Gospels, which he interpreted to indicate that the religious authority of Cyril would require Orestes' acquiescence in the bishop's policy. Nevertheless, Orestes remained unmoved by such gestures.
This refusal almost cost Orestes his life. Nitrian monks came from the desert and instigated a riot against Orestes among the population of Alexandria. These monks had resorted to violence 15 years before, during a controversy between Theophilus (Cyril's uncle) and the "Tall Brothers"; the monks assaulted Orestes and accused him of being a pagan. Orestes rejected the accusations, showing that he had been baptised by the Archbishop of Constantinople. A monk named Ammonius threw a stone hitting Orestes in the head. The prefect had Ammonius tortured to death, whereupon the Patriarch allegedly honored him as a martyr. However, at least according to Scholasticus, the Christian community displayed a general lack of enthusiasm for Ammonius's case for martyrdom. The prefect then wrote to the emperor Theodosius II, as did Cyril.
The Prefect Orestes enjoyed the political backing of Hypatia, an astronomer, philosopher and mathematician who had considerable moral authority in the city of Alexandria, and who had extensive influence. Indeed, many students from wealthy and influential families came to Alexandria purposely to study privately with Hypatia, and many of these later attained high posts in government and the Church. Several Christians thought that Hypatia's influence had caused Orestes to reject all conciliatory offerings by Cyril. Modern historians think that Orestes had cultivated his relationship with Hypatia to strengthen a bond with the pagan community of Alexandria, as he had done with the Jewish one, in order to better manage the tumultuous political life of the Egyptian capital.
According to Socrates Scholasticus during the Christian season of Lent in March 415, a mob of Christians under the leadership of a lector named Peter, raided Hypatia's carriage as she was travelling home. They dragged her into a building known as the Kaisarion, a former pagan temple and center of the Roman imperial cult in Alexandria that had been converted into a Christian church. There, the mob stripped Hypatia naked and murdered her using ostraka, which can either be translated as "roof tiles" or "oyster shells". Later historian John of Nikiû also tells a similar story. Even later historian Byzantinist Fr. Adrian Fortescue, says that the mob of Christian Parabalanies and Peter, cruelly tore her to pieces on the steps of a church. Damascius adds that they also cut out her eyeballs. They tore her body into pieces and dragged her limbs through the town to a place called Cinarion, where they set them on fire. According to Watts, this was in line with the traditional manner in which Alexandrians carried the bodies of the "vilest criminals" outside the city limits to cremate them as a way of symbolically purifying the city.
Although Socrates Scholasticus never explicitly identifies Hypatia's murderers, they are commonly assumed to have been members of the parabalani. Christopher Haas disputes this identification, arguing that the murderers were more likely "a crowd of Alexandrian laymen". Socrates Scholasticus unequivocally condemns the actions of the mob, declaring, "Surely nothing can be farther from the spirit of Christianity than the allowance of massacres, fights, and transactions of that sort."
Neoplatonist historian Damascius (c. 458 – c. 538) was "anxious to exploit the scandal of Hypatia's death", and attributed responsibility for her murder to Bishop Cyril and his Christian followers. Damascius's account of the Christian murder of Hypatia is the sole historical source naming Bishop Cyril. Some modern studies, as well as the 2009 Hypatia biopic Agora represent Hypatia as falling casualty to a conflict between two Christian factions, one peaceful and moderate and led by Orestes, with the support of Hypatia, and fundamentalist faction enforced by Parabalani and led by Patriarch Cyril. According to lexicographer William Smith, "She was accused of too much familiarity with Orestes, prefect of Alexandria, and the charge spread among the clergy, who took up the notion that she interrupted the friendship of Orestes with their archbishop, Cyril." Scholasticus, alleges that Hypatia fell "victim to the political jealousy which at the time prevailed" and that news of Hypatia's murder, "brought no small disgrace", not only to Patriarch Cyril but to the whole Christian Church in Alexandria, "for murder and slaughter and all such things are altogether opposed to the Christian religion."
After the murder, a deputation of citizens went to Constantinople to petition the Emperor for an investigation so as to prevent such horrors in the future and to put down the disorderly Parabalani, however they urged for the Patriarch to be allowed to remain in the city (Orestes wanted him banished). One could deduce from this that there were some who didn't think Cyril responsible for this or that even his own followers thought he went too far. However, according to Damascius, Cyril himself allegedly only managed to escape even more serious punishment by bribing one of Theodosius's officials. Indeed, the investigation resulted in the emperors Honorius and Theodosius II issuing an edict in autumn of 416, which attempted to remove the parabalani from Cyril's power and instead place them under the authority of Orestes. The edict restricted the parabalani from attending "any public spectacle whatever" or entering "the meeting place of a municipal council or a courtroom." It also severely restricted their recruitment by limiting the total number of parabalani to no more than five hundred.
A further argument in favour of Cyril's exoneration is that if ever a man had bitter enemies it was Cyril. Wilful murder was considered just as unsuitable conduct for bishops in the fifth century as it is now. Why, during all the fierce conflict with the Nestorians, when they brought up every possible charge against him, did no one think of calling him Hypatia's murderer? Although to accuse a Saint of this horrid story is a gross calumny, there is no doubt that in other ways he did give annoyance to the government."
Another major conflict was between the Alexandrian and Antiochian schools of ecclesiastical reflection, piety, and discourse. This long running conflict widened with the third canon of the First Council of Constantinople which granted the see of Constantinople primacy over the older sees of Alexandria and Antioch. Thus, the struggle between the sees of Alexandria and Antioch now included Constantinople. The conflict came to a head in 428 after Nestorius, who originated in Antioch, was made Archbishop of Constantinople.
Cyril gained an opportunity to restore Alexandria's pre-eminence over both Antioch and Constantinople when an Antiochine priest who was in Constantinople at Nestorius' behest began to preach against calling Mary the "Mother of God" (Theotokos). As the term "Mother of God" had long been attached to Mary, the laity in Constantinople complained against the priest. Rather than repudiating the priest, Nestorius intervened on his behalf. Nestorius argued that Mary was neither a "Mother of Man" nor "Mother of God" as these referred to Christ's two natures; rather, Mary was the "Mother of Christ" (Greek: Christotokos). Christ, according to Nestorius, was the conjunction of the Godhead with his "temple" (which Nestorius was fond of calling his human nature). The controversy seemed to be centered on the issue of the suffering of Christ. Cyril maintained that the Son of God or the divine Word, truly suffered "in the flesh." However, Nestorius claimed that the Son of God was altogether incapable of suffering, even within his union with the flesh. Eusebius of Dorylaeum went so far as to accuse Nestorius of adoptionism. By this time, news of the controversy in the capital had reached Alexandria. At Easter 429 A.D., Cyril wrote a letter to the Egyptian monks warning them of Nestorius's views. A copy of this letter reached Constantinople where Nestorius preached a sermon against it. This began a series of letters between Cyril and Nestorius which gradually became more strident in tone. Finally, Emperor Theodosius II convoked the Council of Ephesus (in 431) to solve the dispute. Cyril selected Ephesus as the venue since it supported the veneration of Mary. The council was convoked before Nestorius's supporters from Antioch and Syria had arrived and thus Nestorius refused to attend when summoned. Predictably, the Council ordered the deposition and exile of Nestorius for heresy.
However, when John of Antioch and the other pro-Nestorius bishops finally reached Ephesus, they assembled their own Council, condemned Cyril for heresy, deposed him from his see, and labelled him as a "monster, born and educated for the destruction of the church". Theodosius, by now old enough to hold power by himself, annulled the verdict of the Council and arrested Cyril, but Cyril eventually escaped. Having fled to Egypt, Cyril bribed Theodosius's courtiers, and sent a mob led by Dalmatius, a hermit, to besiege Theodosius's palace, and shout abuse; the emperor eventually gave in, sending Nestorius into minor exile (Upper Egypt). Cyril died about 444, but the controversies were to continue for decades, from the "Robber Synod" of Ephesus (449) to the Council of Chalcedon (451) and beyond.
Cyril regarded the embodiment of God in the person of Jesus Christ to be so mystically powerful that it spread out from the body of the God-man into the rest of the race, to reconstitute human nature into a graced and deified condition of the saints, one that promised immortality and transfiguration to believers. Nestorius, on the other hand, saw the incarnation as primarily a moral and ethical example to the faithful, to follow in the footsteps of Jesus. Cyril's constant stress was on the simple idea that it was God who walked the streets of Nazareth (hence Mary was Theotokos, meaning "God bearer", which became in Latin "Mater Dei or Dei Genitrix", or Mother of God), and God who had appeared in a transfigured humanity. Nestorius spoke of the distinct "Jesus the man" and "the divine Logos" in ways that Cyril thought were too dichotomous, widening the ontological gap between man and God in a way that some of his contemporaries believed would annihilate the person of Christ.
The main issue that prompted this dispute between Cyril and Nestorius was the question which arose at the Council of Constantinople: What exactly was the being to which Mary gave birth? Cyril affirmed that the Holy Trinity consists of a singular divine nature, essence, and being (ousia) in three distinct aspects, instantiations, or subsistencies of being (hypostases). These distinct hypostases are the Father, the Son or Word (Logos), and the Holy Spirit. Then, when the Son became flesh and entered the world, the pre-Incarnate divine nature and assumed human nature both remained, but became united in the person of Jesus. This resulted in the miaphysite slogan "One Nature united out of two" being used to encapsulate the theological position of this Alexandrian bishop.
According to Cyril's theology, there were two states for the Son of God: the state that existed prior to the Son (or Word/Logos) becoming enfleshed in the person of Jesus and the state that actually became enfleshed. The Logos Incarnate suffered and died on the Cross, and therefore the Son was able to suffer without suffering. Cyril passionately argued for the continuity of a single subject, God the Word, from the pre-Incarnate state to the Incarnate state. The divine Logos was really present in the flesh and in the world—not merely bestowed upon, semantically affixed to, or morally associated with the man Jesus, as the adoptionists and, he believed, Nestorius had taught.
Cyril of Alexandria became noted in Church history because of his spirited fight for the title "Theotokos" during the First Council of Ephesus (431), establishing the ecclesiastically settled basis for all subsequent mariological developments. Prior to the controversy over the theology of Nestorius, Cyril rarely if ever used the Mariological title, but theo-political circumstances compelled him as Archbishop of one of the Empire's chief sees, to become involved and develop his theology."
Beginning in 429 Cyril wrote a series of letters to various ecclesiastical authorities in which he espoused the orthodoxy of "Theotokos". The propriety of the term was justified through appeals to earlier theologians who had used it, like Athanasius, the Cappadocians, and Atticus. Following an epistolary exchange with the increasingly unpopular archbishop of Constantinople, in 430 Cyril wrote his famous 12 Anathemas in which anyone who refused to call Mary Theotokos was condemned. The following year over 100 bishops met in council at Ephesus to rule on the disputes. In between sessions at the Council Cyril delivered a number of sermons; some of those attributed to his hand are of disputed authorship, but 6 are recognised as genuine. Homily IV delivered upon the late arrival of western delegates is a particularly striking example of Cyril's developed Mariology. It is the foremost expression of Cyril's devotion to Mary, and is one of the first historical attestations of the salutation Χαῖρε ("Hail") being used to invoke the Virgin, a practice later standardised in Byzantine homiletics and hymnography such as the sermons of Chrysippus and Basil of Selecucia, and the Akathist hymn. Mary, who is credited with calling the council fathers together, embodies for Cyril the paradoxes of orthodox Christology, "container of the uncontained" and "the place for the infinite", among other lauded descriptions. Cyril's notions of the identity of Christ, therefore, have direct bearing on the identity of Mary. Wessell explains how "Cyril's spatial metaphors construed Mary as a sacred place" and how he "applied metaphors depicting royalty and exaltation to Mary: she was the treasure of the world, the crown of virginity, and the sceptre of orthodoxy." Subsequently, such praise would become normative in Marian theology.
In several of his works, Cyril focuses on the love of Jesus to his mother. On the Cross, he overcomes his pain and thinks of his mother. At the wedding in Cana, he bows to her wishes. The conflict with Nestorius was mainly over this issue, and some have argued that it has often been misunderstood. "[T]he debate was not so much about Mary as about Jesus. The question was not what honors were due to Mary, but how one was to speak of the birth of Jesus." Wessell notes that in Homily V delivered at the council, Cyril argued that Nestorius' refusal to acknowledge God's incarnate birth from Mary was a blasphemy against Christ. At the same time, the close relationship between Christological and Mariological formulations going back to the Cappadocian Fathers created a climate wherein intellectual argumentation over disputed theology overlapped with blossoming lay piety. When the Council of Ephesus convened under Cyril's presidency it did so in the newly constructed Church of Mary, a venue that contributed to the devotional matrix of the debates. Whereas in the past scholars have often argued that Marian piety and theology only developed in the wake of the conciliar decrees, Shoemaker considers this to be refuted by the picture emerging from liturgical and archaeological evidence. The substance of Cyril's arumentation was Christological in orientation. His mature Mariology was chiefly in service to this, and to the end of discrediting Nestorius. Yet Wessel, quoting Homily IV, notes that the enthusiastic praises go beyond the strictly Christological. "She was not only valuable as a vessel storing something sacred but was herself precious and venerated: ‘Is it even possible for people to speak of the celebrated Mary? The virginal womb; O thing of wonder! The marvel strikes me with awe!’" Such sentiments served to further distinguish what Cyril believed to be orthodox theology from that which Nestorius taught, characterising the latter as subversive to both church and empire. As "scepter of orthodoxy", Mary became the standard of Christological fidelity in Cyril's theology; Nestorius's denial of "Theotokos" became the identifiable sign of his impugning of the divinity of Jesus.
St. Cyril received an important recognition of his preachings by the Second Council of Constantinople (553 d.C.) which declared;
Cyril was a scholarly archbishop and a prolific writer. In the early years of his active life in the Church he wrote several exegetical documents. Among these were: Commentaries on the Old Testament, Thesaurus, Discourse Against Arians, Commentary on St. John's Gospel, and Dialogues on the Trinity. In 429 as the Christological controversies increased, the output of his writings was so extensive that his opponents could not match it. His writings and his theology have remained central to the tradition of the Fathers and to all Orthodox to this day. | [
{
"paragraph_id": 0,
"text": "Cyril of Alexandria (Ancient Greek: Κύριλλος Ἀλεξανδρείας; Coptic: Ⲡⲁⲡⲁ Ⲕⲩⲣⲓⲗⲗⲟⲩ ⲁ̅ or ⲡⲓ̀ⲁⲅⲓⲟⲥ Ⲕⲓⲣⲓⲗⲗⲟⲥ; c. 376–444) was the Patriarch of Alexandria from 412 to 444. He was enthroned when the city was at the height of its influence and power within the Roman Empire. Cyril wrote extensively and was a major player in the Christological controversies of the late-4th and 5th centuries. He was a central figure in the Council of Ephesus in 431, which led to the deposition of Nestorius as Patriarch of Constantinople. Cyril is counted among the Church Fathers and also as a Doctor of the Church, and his reputation within the Christian world has resulted in his titles Pillar of Faith and Seal of all the Fathers. The Nestorian bishops at their synod at the Council of Ephesus declared him a heretic, labelling him as a \"monster, born and educated for the destruction of the church.\"",
"title": ""
},
{
"paragraph_id": 1,
"text": "Cyril is well known for his dispute with Nestorius and his supporter, Patriarch John of Antioch, whom Cyril excluded from the Council of Ephesus for arriving late. He is also known for his expulsion of Novatians and Jews from Alexandria and for inflaming tensions that led to the murder of the Hellenistic philosopher Hypatia by a Christian mob. Historians disagree over the extent of his responsibility in this.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Cyril tried to oblige the pious Christian emperor Theodosius II (AD 408–450) to himself by dedicating his Paschal table to him. Cyril's Paschal table was provided with a Metonic basic structure in the form of a 19-year lunar cycle adopted by him around AD 425, which was very different from the first Metonic 19-year lunar cycle invented around AD 260 by Anatolius, but exactly equal to the lunar cycle which had been introduced around AD 412 by Annianus; the Julian equivalent of this Alexandrian cycle adopted by Cyril and nowadays referred to as the 'classical (Alexandrian) 19-year lunar cycle' would emerge a century later in Rome as the basic structure of Dionysius Exiguus’ Paschal table (AD 525).",
"title": ""
},
{
"paragraph_id": 3,
"text": "The Catholic Church did not commemorate Saint Cyril in the Tridentine calendar: it added his feast only in 1882, assigning to it the date of 9 February. This date is used by the Western Rite Orthodox Church. Yet the 1969 Catholic Calendar revision moved it to 27 June, considered to be the day of the saint's death, as celebrated by the Coptic Orthodox Church. The same date has been chosen for the Lutheran calendar. The Eastern Orthodox and Byzantine Catholic Churches celebrate his feast day on 9 June and also, together with Pope Athanasius I of Alexandria, on 18 January.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Cyril is remembered in the Church of England with a commemoration on 27 June.",
"title": ""
},
{
"paragraph_id": 5,
"text": "Little is known for certain of Cyril's early life. He was born circa 376, in the town of Didouseya, Egypt, modern-day El-Mahalla El-Kubra. A few years after his birth, his maternal uncle Theophilus rose to the powerful position of Patriarch of Alexandria. His mother remained close to her brother and under his guidance, Cyril was well educated. His writings show his knowledge of Christian writers of his day, including Eusebius, Origen, Didymus the Blind, and writers of the Church of Alexandria. He received the formal Christian education standard for his day: he studied grammar from age twelve to fourteen (390–392), rhetoric and humanities from fifteen to twenty (393–397) and finally theology and biblical studies (398–402).",
"title": "Early life"
},
{
"paragraph_id": 6,
"text": "In 403, he accompanied his uncle to attend the \"Synod of the Oak\" in Constantinople, which deposed John Chrysostom as Archbishop of Constantinople. The prior year, Theophilus had been summoned by the emperor to Constantinople to apologize before a synod, over which Chrysostom would preside, on account of several charges which were brought against him by certain Egyptian monks. Theophilus had them persecuted as Origenists. Placing himself at the head of soldiers and armed servants, Theophilus had marched against the monks, burned their dwellings, and ill-treated those whom he captured. Theophilus arrived at Constantinople with twenty-nine of his suffragan bishops, and conferring with those opposed to the Archbishop, drafted a long list of largely unfounded accusations against Chrysostom, who refused to recognize the legality of a synod in which his open enemies were judges. Chrysostom was subsequently deposed.",
"title": "Early life"
},
{
"paragraph_id": 7,
"text": "Theophilus died on 15 October 412, and Cyril was made Pope or Patriarch of Alexandria on 18 October 412, but only after a riot between his supporters and those of his rival Archdeacon Timotheus. According to Socrates Scholasticus, the Alexandrians were always rioting.",
"title": "Early life"
},
{
"paragraph_id": 8,
"text": "Thus, Cyril followed his uncle in a position that had become powerful and influential, rivalling that of the prefect in a time of turmoil and frequently violent conflict between the cosmopolitan city's pagan, Jewish, and Christian inhabitants. He began to exert his authority by causing the churches of the Novatianists to be closed and their sacred vessels to be seized.",
"title": "Early life"
},
{
"paragraph_id": 9,
"text": "Orestes, Praefectus augustalis of the Diocese of Egypt, steadfastly resisted Cyril's ecclesiastical encroachment upon secular prerogatives.",
"title": "Controversies"
},
{
"paragraph_id": 10,
"text": "Tension between the parties increased when in 415, Orestes published an edict that outlined new regulations regarding mime shows and dancing exhibitions in the city, which attracted large crowds and were commonly prone to civil disorder of varying degrees. Crowds gathered to read the edict shortly after it was posted in the city's theater. Cyril sent the grammaticus Hierax to discover the content of the edict. The edict angered Christians as well as Jews. At one such gathering, Hierax read the edict and applauded the new regulations, prompting a disturbance. Many people felt that Hierax was attempting to incite the crowd—particularly the Jews—into sedition. Orestes had Hierax tortured in public in a theatre. This order had two aims: one to quell the riot, the other to mark Orestes' authority over Cyril.",
"title": "Controversies"
},
{
"paragraph_id": 11,
"text": "Socrates Scholasticus recounts that upon hearing of Hierex's severe and public punishment, Cyril threatened to retaliate against the Jews of Alexandria with \"the utmost severities\" if the harassment of Christians did not cease immediately. In response to Cyril's threat, the Jews of Alexandria grew even more furious, eventually resorting to violence against the Christians. They plotted to flush the Christians out at night by running through the streets claiming that the Church of Alexander was on fire. When Christians responded to what they were led to believe was the burning down of their church, \"the Jews immediately fell upon and slew them\" by using rings to recognize one another in the dark and killing everyone else in sight. When the morning came, Cyril, along with many of his followers, took to the city's synagogues in search of the perpetrators of the massacre.",
"title": "Controversies"
},
{
"paragraph_id": 12,
"text": "According to Socrates, after Cyril rounded up all the Jews in Alexandria he ordered them to be stripped of all possessions, banished them from Alexandria, and allowed their goods to be pillaged by the remaining citizens of Alexandria. Scholasticus alleges that all the Jews of Alexandria were banished, while John of Nikiû says it was only those involved in the ambush and massacre. Susan Wessel says that, while it is not clear whether Scholasticus was a Novationist (whose churches Cyril had closed), he was apparently sympathetic towards them, and repeatedly accuses Cyril of abusing his episcopal power by infringing on the rights and duties of the secular authorities. Wessel says, however, \"...Socrates probably does not provide accurate and unambiguous information about Cyril's relationship to imperial authority\".",
"title": "Controversies"
},
{
"paragraph_id": 13,
"text": "Nonetheless, with Cyril's banishment of the Jews, however many, \"Orestes [...] was filled with great indignation at these transactions, and was excessively grieved that a city of such magnitude should have been suddenly bereft of so large a portion of its population.\" Because of this, the feud between Cyril and Orestes intensified, and both men wrote to the emperor regarding the situation. Eventually, Cyril attempted to reach out to Orestes through several peace overtures, including attempted mediation and, when that failed, showed him the Gospels, which he interpreted to indicate that the religious authority of Cyril would require Orestes' acquiescence in the bishop's policy. Nevertheless, Orestes remained unmoved by such gestures.",
"title": "Controversies"
},
{
"paragraph_id": 14,
"text": "This refusal almost cost Orestes his life. Nitrian monks came from the desert and instigated a riot against Orestes among the population of Alexandria. These monks had resorted to violence 15 years before, during a controversy between Theophilus (Cyril's uncle) and the \"Tall Brothers\"; the monks assaulted Orestes and accused him of being a pagan. Orestes rejected the accusations, showing that he had been baptised by the Archbishop of Constantinople. A monk named Ammonius threw a stone hitting Orestes in the head. The prefect had Ammonius tortured to death, whereupon the Patriarch allegedly honored him as a martyr. However, at least according to Scholasticus, the Christian community displayed a general lack of enthusiasm for Ammonius's case for martyrdom. The prefect then wrote to the emperor Theodosius II, as did Cyril.",
"title": "Controversies"
},
{
"paragraph_id": 15,
"text": "The Prefect Orestes enjoyed the political backing of Hypatia, an astronomer, philosopher and mathematician who had considerable moral authority in the city of Alexandria, and who had extensive influence. Indeed, many students from wealthy and influential families came to Alexandria purposely to study privately with Hypatia, and many of these later attained high posts in government and the Church. Several Christians thought that Hypatia's influence had caused Orestes to reject all conciliatory offerings by Cyril. Modern historians think that Orestes had cultivated his relationship with Hypatia to strengthen a bond with the pagan community of Alexandria, as he had done with the Jewish one, in order to better manage the tumultuous political life of the Egyptian capital.",
"title": "Controversies"
},
{
"paragraph_id": 16,
"text": "According to Socrates Scholasticus during the Christian season of Lent in March 415, a mob of Christians under the leadership of a lector named Peter, raided Hypatia's carriage as she was travelling home. They dragged her into a building known as the Kaisarion, a former pagan temple and center of the Roman imperial cult in Alexandria that had been converted into a Christian church. There, the mob stripped Hypatia naked and murdered her using ostraka, which can either be translated as \"roof tiles\" or \"oyster shells\". Later historian John of Nikiû also tells a similar story. Even later historian Byzantinist Fr. Adrian Fortescue, says that the mob of Christian Parabalanies and Peter, cruelly tore her to pieces on the steps of a church. Damascius adds that they also cut out her eyeballs. They tore her body into pieces and dragged her limbs through the town to a place called Cinarion, where they set them on fire. According to Watts, this was in line with the traditional manner in which Alexandrians carried the bodies of the \"vilest criminals\" outside the city limits to cremate them as a way of symbolically purifying the city.",
"title": "Controversies"
},
{
"paragraph_id": 17,
"text": "Although Socrates Scholasticus never explicitly identifies Hypatia's murderers, they are commonly assumed to have been members of the parabalani. Christopher Haas disputes this identification, arguing that the murderers were more likely \"a crowd of Alexandrian laymen\". Socrates Scholasticus unequivocally condemns the actions of the mob, declaring, \"Surely nothing can be farther from the spirit of Christianity than the allowance of massacres, fights, and transactions of that sort.\"",
"title": "Controversies"
},
{
"paragraph_id": 18,
"text": "Neoplatonist historian Damascius (c. 458 – c. 538) was \"anxious to exploit the scandal of Hypatia's death\", and attributed responsibility for her murder to Bishop Cyril and his Christian followers. Damascius's account of the Christian murder of Hypatia is the sole historical source naming Bishop Cyril. Some modern studies, as well as the 2009 Hypatia biopic Agora represent Hypatia as falling casualty to a conflict between two Christian factions, one peaceful and moderate and led by Orestes, with the support of Hypatia, and fundamentalist faction enforced by Parabalani and led by Patriarch Cyril. According to lexicographer William Smith, \"She was accused of too much familiarity with Orestes, prefect of Alexandria, and the charge spread among the clergy, who took up the notion that she interrupted the friendship of Orestes with their archbishop, Cyril.\" Scholasticus, alleges that Hypatia fell \"victim to the political jealousy which at the time prevailed\" and that news of Hypatia's murder, \"brought no small disgrace\", not only to Patriarch Cyril but to the whole Christian Church in Alexandria, \"for murder and slaughter and all such things are altogether opposed to the Christian religion.\"",
"title": "Controversies"
},
{
"paragraph_id": 19,
"text": "After the murder, a deputation of citizens went to Constantinople to petition the Emperor for an investigation so as to prevent such horrors in the future and to put down the disorderly Parabalani, however they urged for the Patriarch to be allowed to remain in the city (Orestes wanted him banished). One could deduce from this that there were some who didn't think Cyril responsible for this or that even his own followers thought he went too far. However, according to Damascius, Cyril himself allegedly only managed to escape even more serious punishment by bribing one of Theodosius's officials. Indeed, the investigation resulted in the emperors Honorius and Theodosius II issuing an edict in autumn of 416, which attempted to remove the parabalani from Cyril's power and instead place them under the authority of Orestes. The edict restricted the parabalani from attending \"any public spectacle whatever\" or entering \"the meeting place of a municipal council or a courtroom.\" It also severely restricted their recruitment by limiting the total number of parabalani to no more than five hundred.",
"title": "Controversies"
},
{
"paragraph_id": 20,
"text": "A further argument in favour of Cyril's exoneration is that if ever a man had bitter enemies it was Cyril. Wilful murder was considered just as unsuitable conduct for bishops in the fifth century as it is now. Why, during all the fierce conflict with the Nestorians, when they brought up every possible charge against him, did no one think of calling him Hypatia's murderer? Although to accuse a Saint of this horrid story is a gross calumny, there is no doubt that in other ways he did give annoyance to the government.\"",
"title": "Controversies"
},
{
"paragraph_id": 21,
"text": "Another major conflict was between the Alexandrian and Antiochian schools of ecclesiastical reflection, piety, and discourse. This long running conflict widened with the third canon of the First Council of Constantinople which granted the see of Constantinople primacy over the older sees of Alexandria and Antioch. Thus, the struggle between the sees of Alexandria and Antioch now included Constantinople. The conflict came to a head in 428 after Nestorius, who originated in Antioch, was made Archbishop of Constantinople.",
"title": "Controversies"
},
{
"paragraph_id": 22,
"text": "Cyril gained an opportunity to restore Alexandria's pre-eminence over both Antioch and Constantinople when an Antiochine priest who was in Constantinople at Nestorius' behest began to preach against calling Mary the \"Mother of God\" (Theotokos). As the term \"Mother of God\" had long been attached to Mary, the laity in Constantinople complained against the priest. Rather than repudiating the priest, Nestorius intervened on his behalf. Nestorius argued that Mary was neither a \"Mother of Man\" nor \"Mother of God\" as these referred to Christ's two natures; rather, Mary was the \"Mother of Christ\" (Greek: Christotokos). Christ, according to Nestorius, was the conjunction of the Godhead with his \"temple\" (which Nestorius was fond of calling his human nature). The controversy seemed to be centered on the issue of the suffering of Christ. Cyril maintained that the Son of God or the divine Word, truly suffered \"in the flesh.\" However, Nestorius claimed that the Son of God was altogether incapable of suffering, even within his union with the flesh. Eusebius of Dorylaeum went so far as to accuse Nestorius of adoptionism. By this time, news of the controversy in the capital had reached Alexandria. At Easter 429 A.D., Cyril wrote a letter to the Egyptian monks warning them of Nestorius's views. A copy of this letter reached Constantinople where Nestorius preached a sermon against it. This began a series of letters between Cyril and Nestorius which gradually became more strident in tone. Finally, Emperor Theodosius II convoked the Council of Ephesus (in 431) to solve the dispute. Cyril selected Ephesus as the venue since it supported the veneration of Mary. The council was convoked before Nestorius's supporters from Antioch and Syria had arrived and thus Nestorius refused to attend when summoned. Predictably, the Council ordered the deposition and exile of Nestorius for heresy.",
"title": "Controversies"
},
{
"paragraph_id": 23,
"text": "However, when John of Antioch and the other pro-Nestorius bishops finally reached Ephesus, they assembled their own Council, condemned Cyril for heresy, deposed him from his see, and labelled him as a \"monster, born and educated for the destruction of the church\". Theodosius, by now old enough to hold power by himself, annulled the verdict of the Council and arrested Cyril, but Cyril eventually escaped. Having fled to Egypt, Cyril bribed Theodosius's courtiers, and sent a mob led by Dalmatius, a hermit, to besiege Theodosius's palace, and shout abuse; the emperor eventually gave in, sending Nestorius into minor exile (Upper Egypt). Cyril died about 444, but the controversies were to continue for decades, from the \"Robber Synod\" of Ephesus (449) to the Council of Chalcedon (451) and beyond.",
"title": "Controversies"
},
{
"paragraph_id": 24,
"text": "Cyril regarded the embodiment of God in the person of Jesus Christ to be so mystically powerful that it spread out from the body of the God-man into the rest of the race, to reconstitute human nature into a graced and deified condition of the saints, one that promised immortality and transfiguration to believers. Nestorius, on the other hand, saw the incarnation as primarily a moral and ethical example to the faithful, to follow in the footsteps of Jesus. Cyril's constant stress was on the simple idea that it was God who walked the streets of Nazareth (hence Mary was Theotokos, meaning \"God bearer\", which became in Latin \"Mater Dei or Dei Genitrix\", or Mother of God), and God who had appeared in a transfigured humanity. Nestorius spoke of the distinct \"Jesus the man\" and \"the divine Logos\" in ways that Cyril thought were too dichotomous, widening the ontological gap between man and God in a way that some of his contemporaries believed would annihilate the person of Christ.",
"title": "Theology"
},
{
"paragraph_id": 25,
"text": "The main issue that prompted this dispute between Cyril and Nestorius was the question which arose at the Council of Constantinople: What exactly was the being to which Mary gave birth? Cyril affirmed that the Holy Trinity consists of a singular divine nature, essence, and being (ousia) in three distinct aspects, instantiations, or subsistencies of being (hypostases). These distinct hypostases are the Father, the Son or Word (Logos), and the Holy Spirit. Then, when the Son became flesh and entered the world, the pre-Incarnate divine nature and assumed human nature both remained, but became united in the person of Jesus. This resulted in the miaphysite slogan \"One Nature united out of two\" being used to encapsulate the theological position of this Alexandrian bishop.",
"title": "Theology"
},
{
"paragraph_id": 26,
"text": "According to Cyril's theology, there were two states for the Son of God: the state that existed prior to the Son (or Word/Logos) becoming enfleshed in the person of Jesus and the state that actually became enfleshed. The Logos Incarnate suffered and died on the Cross, and therefore the Son was able to suffer without suffering. Cyril passionately argued for the continuity of a single subject, God the Word, from the pre-Incarnate state to the Incarnate state. The divine Logos was really present in the flesh and in the world—not merely bestowed upon, semantically affixed to, or morally associated with the man Jesus, as the adoptionists and, he believed, Nestorius had taught.",
"title": "Theology"
},
{
"paragraph_id": 27,
"text": "Cyril of Alexandria became noted in Church history because of his spirited fight for the title \"Theotokos\" during the First Council of Ephesus (431), establishing the ecclesiastically settled basis for all subsequent mariological developments. Prior to the controversy over the theology of Nestorius, Cyril rarely if ever used the Mariological title, but theo-political circumstances compelled him as Archbishop of one of the Empire's chief sees, to become involved and develop his theology.\"",
"title": "Theology"
},
{
"paragraph_id": 28,
"text": "Beginning in 429 Cyril wrote a series of letters to various ecclesiastical authorities in which he espoused the orthodoxy of \"Theotokos\". The propriety of the term was justified through appeals to earlier theologians who had used it, like Athanasius, the Cappadocians, and Atticus. Following an epistolary exchange with the increasingly unpopular archbishop of Constantinople, in 430 Cyril wrote his famous 12 Anathemas in which anyone who refused to call Mary Theotokos was condemned. The following year over 100 bishops met in council at Ephesus to rule on the disputes. In between sessions at the Council Cyril delivered a number of sermons; some of those attributed to his hand are of disputed authorship, but 6 are recognised as genuine. Homily IV delivered upon the late arrival of western delegates is a particularly striking example of Cyril's developed Mariology. It is the foremost expression of Cyril's devotion to Mary, and is one of the first historical attestations of the salutation Χαῖρε (\"Hail\") being used to invoke the Virgin, a practice later standardised in Byzantine homiletics and hymnography such as the sermons of Chrysippus and Basil of Selecucia, and the Akathist hymn. Mary, who is credited with calling the council fathers together, embodies for Cyril the paradoxes of orthodox Christology, \"container of the uncontained\" and \"the place for the infinite\", among other lauded descriptions. Cyril's notions of the identity of Christ, therefore, have direct bearing on the identity of Mary. Wessell explains how \"Cyril's spatial metaphors construed Mary as a sacred place\" and how he \"applied metaphors depicting royalty and exaltation to Mary: she was the treasure of the world, the crown of virginity, and the sceptre of orthodoxy.\" Subsequently, such praise would become normative in Marian theology.",
"title": "Theology"
},
{
"paragraph_id": 29,
"text": "In several of his works, Cyril focuses on the love of Jesus to his mother. On the Cross, he overcomes his pain and thinks of his mother. At the wedding in Cana, he bows to her wishes. The conflict with Nestorius was mainly over this issue, and some have argued that it has often been misunderstood. \"[T]he debate was not so much about Mary as about Jesus. The question was not what honors were due to Mary, but how one was to speak of the birth of Jesus.\" Wessell notes that in Homily V delivered at the council, Cyril argued that Nestorius' refusal to acknowledge God's incarnate birth from Mary was a blasphemy against Christ. At the same time, the close relationship between Christological and Mariological formulations going back to the Cappadocian Fathers created a climate wherein intellectual argumentation over disputed theology overlapped with blossoming lay piety. When the Council of Ephesus convened under Cyril's presidency it did so in the newly constructed Church of Mary, a venue that contributed to the devotional matrix of the debates. Whereas in the past scholars have often argued that Marian piety and theology only developed in the wake of the conciliar decrees, Shoemaker considers this to be refuted by the picture emerging from liturgical and archaeological evidence. The substance of Cyril's arumentation was Christological in orientation. His mature Mariology was chiefly in service to this, and to the end of discrediting Nestorius. Yet Wessel, quoting Homily IV, notes that the enthusiastic praises go beyond the strictly Christological. \"She was not only valuable as a vessel storing something sacred but was herself precious and venerated: ‘Is it even possible for people to speak of the celebrated Mary? The virginal womb; O thing of wonder! The marvel strikes me with awe!’\" Such sentiments served to further distinguish what Cyril believed to be orthodox theology from that which Nestorius taught, characterising the latter as subversive to both church and empire. As \"scepter of orthodoxy\", Mary became the standard of Christological fidelity in Cyril's theology; Nestorius's denial of \"Theotokos\" became the identifiable sign of his impugning of the divinity of Jesus.",
"title": "Theology"
},
{
"paragraph_id": 30,
"text": "St. Cyril received an important recognition of his preachings by the Second Council of Constantinople (553 d.C.) which declared;",
"title": "Theology"
},
{
"paragraph_id": 31,
"text": "Cyril was a scholarly archbishop and a prolific writer. In the early years of his active life in the Church he wrote several exegetical documents. Among these were: Commentaries on the Old Testament, Thesaurus, Discourse Against Arians, Commentary on St. John's Gospel, and Dialogues on the Trinity. In 429 as the Christological controversies increased, the output of his writings was so extensive that his opponents could not match it. His writings and his theology have remained central to the tradition of the Fathers and to all Orthodox to this day.",
"title": "Works"
}
] | Cyril of Alexandria was the Patriarch of Alexandria from 412 to 444. He was enthroned when the city was at the height of its influence and power within the Roman Empire. Cyril wrote extensively and was a major player in the Christological controversies of the late-4th and 5th centuries. He was a central figure in the Council of Ephesus in 431, which led to the deposition of Nestorius as Patriarch of Constantinople.
Cyril is counted among the Church Fathers and also as a Doctor of the Church, and his reputation within the Christian world has resulted in his titles Pillar of Faith and Seal of all the Fathers. The Nestorian bishops at their synod at the Council of Ephesus declared him a heretic, labelling him as a "monster, born and educated for the destruction of the church." Cyril is well known for his dispute with Nestorius and his supporter, Patriarch John of Antioch, whom Cyril excluded from the Council of Ephesus for arriving late. He is also known for his expulsion of Novatians and Jews from Alexandria and for inflaming tensions that led to the murder of the Hellenistic philosopher Hypatia by a Christian mob. Historians disagree over the extent of his responsibility in this. Cyril tried to oblige the pious Christian emperor Theodosius II to himself by dedicating his Paschal table to him. Cyril's Paschal table was provided with a Metonic basic structure in the form of a 19-year lunar cycle adopted by him around AD 425, which was very different from the first Metonic 19-year lunar cycle invented around AD 260 by Anatolius, but exactly equal to the lunar cycle which had been introduced around AD 412 by Annianus; the Julian equivalent of this Alexandrian cycle adopted by Cyril and nowadays referred to as the 'classical (Alexandrian) 19-year lunar cycle' would emerge a century later in Rome as the basic structure of Dionysius Exiguus’ Paschal table. The Catholic Church did not commemorate Saint Cyril in the Tridentine calendar: it added his feast only in 1882, assigning to it the date of 9 February. This date is used by the Western Rite Orthodox Church. Yet the 1969 Catholic Calendar revision moved it to 27 June, considered to be the day of the saint's death, as celebrated by the Coptic Orthodox Church. The same date has been chosen for the Lutheran calendar. The Eastern Orthodox and Byzantine Catholic Churches celebrate his feast day on 9 June and also, together with Pope Athanasius I of Alexandria, on 18 January. Cyril is remembered in the Church of England with a commemoration on 27 June. | 2001-12-08T00:31:04Z | 2023-12-30T12:21:03Z | [
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] | https://en.wikipedia.org/wiki/Cyril_of_Alexandria |
7,387 | Cyril of Jerusalem | Cyril of Jerusalem (Greek: Κύριλλος Α΄ Ἱεροσολύμων, Kýrillos A Ierosolýmon; Latin: Cyrillus Hierosolymitanus; c. 313 – 386) was a theologian of the Early Church. About the end of AD 350, he succeeded Maximus as Bishop of Jerusalem, but was exiled on more than one occasion due to the enmity of Acacius of Caesarea, and the policies of various emperors. Cyril left important writings documenting the instruction of catechumens and the order of the Liturgy in his day.
Cyril is venerated as a saint within the Roman Catholic Church, the Eastern Orthodox Church, Oriental Orthodox Church, and the Anglican Communion. In 1883, Cyril was declared a Doctor of the Church by Pope Leo XIII.
Cyril is remembered in the Church of England with a commemoration on 18 March.
Little is known of his life before he became a bishop; the assignment of his birth to the year 315 rests on conjecture. According to Butler, Cyril was born at or near the city of Jerusalem, and was apparently well-read in both the writings of the early Christian theologians and the Greek philosophers.
Cyril was ordained a deacon by Bishop Macarius of Jerusalem in about 335 and a priest some eight years later by Bishop Maximus. Around the end of 350 he succeeded Maximus in the See of Jerusalem, although the evidence for this relies on the Catecheses written by Cyril where he refers to himself as "bishop". Jerome also suggests Cyril was an Arian at this stage.
Cyril is described as preacher and liturgist by the pilgrim Egeria.
Relations between Metropolitan Acacius of Caesarea and Cyril became strained. Acacius is presented as a leading Arian by the orthodox historians, and his opposition to Cyril in the 350s is attributed by these writers to this. Sozomen also suggests that the tension may have been increased by Acacius's jealousy of the importance assigned to Cyril's See by the Council of Nicaea, as well as by the threat posed to Caesarea by the rising influence of the seat of Jerusalem as it developed into the prime Christian holy place and became a centre of pilgrimage.
Acacius charged Cyril with selling church property. The city of Jerusalem had suffered drastic food shortages at which point church historians Sozomen and Theodoret report "Cyril secretly sold sacramental ornaments of the church and a valuable holy robe, fashioned with gold thread that the emperor Constantine had once donated for the bishop to wear when he performed the rite of Baptism", possibly to keep people from starving.
For two years, Cyril resisted Acacius' summons to account for his actions, but a church council held under Acacius's influence in 357 deposed Cyril in his absence, and Cyril took refuge with Silvanus, Bishop of Tarsus. The following year, 359, in an atmosphere more hostile to Acacius, the Council of Seleucia reinstated Cyril and deposed Acacius. In 360 this was reversed by Emperor Constantius again, and Cyril suffered another year's exile from Jerusalem until the Emperor Julian's accession allowed him to return in 361.
Cyril was once again banished from Jerusalem by the Arian Emperor Valens in 367, but was able to return again after Valens's death in 378, after which he remained undisturbed until his death in 386. In 380, Gregory of Nyssa came to Jerusalem on the recommendation of a council held at Antioch in the preceding year. He seemingly found the faith in good shape, but worried that the city was prey to parties and corrupt in morals. Cyril's jurisdiction over Jerusalem was expressly confirmed by the First Council of Constantinople (381), at which he was present. At that council he voted for acceptance of the term homoousios (which defined the nature between "God the Father", and "God the Son"), having been finally convinced that there was no better alternative. His story is perhaps best representative of those Eastern bishops (perhaps a majority) initially mistrustful of Nicaea, who came to accept the creed of that council, and the doctrine of the homoousion.
Though his theology was at first somewhat indefinite in phraseology, he undoubtedly gave a thorough adhesion to the Nicene Orthodoxy. Even if he did avoid the debatable term homoousios, he expressed its sense in many passages, which exclude equally Patripassianism, Sabellianism, and the formula "there was a time when the Son was not" attributed to Arius. In other points he takes the ordinary ground of the Eastern Fathers, as in the emphasis he lies on the freedom of the will, the autexousion (αὐτεξούσιον), and in his view of the nature of sin. To him sin is the consequence of freedom, not a natural condition. The body is not the cause, but the instrument of sin. The remedy for it is repentance, on which he insists. Like many of the Eastern Fathers, he focuses on high moral living as essential to true Christianity. His doctrine of the Resurrection is not quite so realistic as that of other Fathers; but his conception of the Church is decidedly empirical: the existing Church form is the true one, intended by Christ, the completion of the Church of the Old Testament. His interpretation of the Eucharist is disputed. Some argue he sometimes seems to approach the symbolic view, though he professes a strong realistic doctrine. The bread and wine are not mere elements, but the body and blood of Christ.
Cyril's writings are filled with the loving and forgiving nature of God which was somewhat uncommon during his time period. Cyril fills his writings with great lines of the healing power of forgiveness and the Holy Spirit, like "The Spirit comes gently and makes himself known by his fragrance. He is not felt as a burden for God is light, very light. Rays of light and knowledge stream before him as the Spirit approaches. The Spirit comes with the tenderness of a true friend to save, to heal, to teach, to counsel, to strengthen and to console". Cyril himself followed God's message of forgiveness many times throughout his life. This is most clearly seen in his two major exiles where Cyril was disgraced and forced to leave his position and his people behind. He never wrote or showed any ill will towards those who wronged him. Cyril stressed the themes of healing and regeneration in his catechesis.
Cyril's famous twenty-three lectures given to catechumens in Jerusalem being prepared for, and after, baptism are best considered in two parts: the first eighteen lectures are commonly known as the Catechetical Lectures, Catechetical Orations or Catechetical Homilies, while the final five are often called the Mystagogic Catecheses (μυσταγωγικαί), because they deal with the mysteries (μυστήρια) i.e. Sacraments of Baptism, Confirmation and the Eucharist.
His catechetical lectures (Greek Κατηχήσεις, Katēchēseis) are generally assumed, on the basis of limited evidence, to have been delivered either in Cyril's early years as a bishop, around 350, or perhaps in 348, while Cyril was still a priest, deputising for his bishop, Maximus. The Catechetical Lectures were given in the Martyrion, the basilica erected by Constantine. They contain instructions on the principal topics of Christian faith and practice, in a popular rather than scientific manner, full of a warm pastoral love and care for the catechumens to whom they were delivered. Each lecture is based upon a text of Scripture, and there is an abundance of Scriptural quotation throughout. In the Catechetical Lectures, parallel with the exposition of the Creed as it was then received in the Church of Jerusalem are vigorous polemics against pagan, Jewish, and heretical errors. They are of great importance for the light which they throw upon the method of instruction usual of that age, as well as upon the liturgical practises of the period, of which they give the fullest account extant.
It is not only among us, who are marked with the name of Christ, that the dignity of faith is great; all the business of the world, even of those outside the Church, is accomplished by faith. By faith, marriage laws join in union persons who were strangers to one another. By faith, agriculture is sustained; for a man does not endure the toil involved unless he believes he will reap a harvest. By faith, seafaring men, entrusting themselves to a tiny wooden craft, exchange the solid element of the land for the unstable motion of the waves."
In the 13th lecture, Cyril of Jerusalem discusses the Crucifixion and burial of Jesus Christ. The main themes that Cyril focuses on in these lectures are Original sin and Jesus' sacrificing himself to save us from our sins. Also, the burial and Resurrection which occurred three days later proving the divinity of Jesus Christ and the loving nature of the Father. Cyril was very adamant about the fact that Jesus went to his death with full knowledge and willingness. Not only did he go willingly but throughout the process he maintained his faith and forgave all those who betrayed him and engaged in his execution. Cyril writes "who did not sin, neither was deceit found in his mouth, who, when he was reviled, did not revile, when he suffered did not threaten". This line by Cyril shows his belief in the selflessness of Jesus especially in this last final act of Love. The lecture also gives a sort of insight to what Jesus may have been feeling during the execution from the whippings and beatings, to the crown of thorns, to the nailing on the cross. Cyril intertwines the story with the messages Jesus told throughout his life before his execution relating to his final act. For example, Cyril writes "I gave my back to those who beat me and my cheeks to blows; and my face I did not shield from the shame of spitting". This clearly reflects the teachings of Jesus to turn the other cheek and not raising your hands against violence because violence just begets violence begets violence. The segment of the Catechesis really reflects the voice Cyril maintained in all of his writing. The writings always have the central message of the Bible; Cyril is not trying to add his own beliefs in reference to religious interpretation and remains grounded in true biblical teachings.
Danielou sees the baptism rite as carrying eschatological overtones, in that "to inscribe for baptism is to write one's name in the register of the elect in heaven".
Oded Irshai observed that Cyril lived in a time of intense apocalyptic expectation, when Christians were eager to find apocalyptic meaning in every historical event or natural disaster. Cyril spent a good part of his episcopacy in intermittent exile from Jerusalem. Abraham Malherbe argued that when a leader's control over a community is fragile, directing attention to the imminent arrival of the antichrist effectively diverts attention from that fragility.
Soon after his appointment, Cyril in his Letter to Constantius of 351 recorded the appearance of a cross of light in the sky above Golgotha, witnessed by the whole population of Jerusalem. The Greek church commemorates this miracle on 7 May. Though in modern times the authenticity of the Letter has been questioned, on the grounds that the word homoousios occurs in the final blessing, many scholars believe this may be a later interpolation, and accept the letter's authenticity on the grounds of other pieces of internal evidence.
Cyril interpreted this as both a sign of support for Constantius, who was soon to face the usurper Magnentius, and as announcing the Second Coming, which was soon to take place in Jerusalem. Not surprisingly, in Cyril's eschatological analysis, Jerusalem holds a central position.
Matthew 24:6 speaks of "wars and reports of wars", as a sign of the End Times, and it is within this context that Cyril read Julian's war with the Persians. Matthew 24:7 speaks of "earthquakes from place to place", and Jerusalem experienced an earthquake in 363 at a time when Julian was attempting to rebuild the temple in Jerusalem. Embroiled in a rivalry with Acacius of Caesarea over the relative primacy of their respective sees, Cyril saw even ecclesial discord a sign of the Lord's coming. Catechesis 15 would appear to cast Julian as the antichrist, although Irshai views this as a later interpolation.
"In His first coming, He endured the Cross, despising shame; in His second, He comes attended by a host of Angels, receiving glory. We rest not then upon His first advent only, but look also for His second." He looked forward to the Second Advent which would bring an end to the world and then the created world to be made anew. At the Second Advent he expected to rise in the resurrection if it came after his time on earth.
There has been considerable controversy over the date and authorship of the Mystagogic Catecheses, addressed to the newly baptized, in preparation for the reception of Holy Communion, with some scholars having attributed them to Cyril's successor as Bishop of Jerusalem, John. Many scholars would currently view the Mystagogic Catecheses as being written by Cyril, but in the 370s or 380s, rather than at the same time as the Catechetical Lectures.
According to the Spanish pilgrim Egeria, these mystagogical catecheses were given to the newly baptised in the Church of the Anastasis in the course of Easter Week. | [
{
"paragraph_id": 0,
"text": "Cyril of Jerusalem (Greek: Κύριλλος Α΄ Ἱεροσολύμων, Kýrillos A Ierosolýmon; Latin: Cyrillus Hierosolymitanus; c. 313 – 386) was a theologian of the Early Church. About the end of AD 350, he succeeded Maximus as Bishop of Jerusalem, but was exiled on more than one occasion due to the enmity of Acacius of Caesarea, and the policies of various emperors. Cyril left important writings documenting the instruction of catechumens and the order of the Liturgy in his day.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Cyril is venerated as a saint within the Roman Catholic Church, the Eastern Orthodox Church, Oriental Orthodox Church, and the Anglican Communion. In 1883, Cyril was declared a Doctor of the Church by Pope Leo XIII.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Cyril is remembered in the Church of England with a commemoration on 18 March.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Little is known of his life before he became a bishop; the assignment of his birth to the year 315 rests on conjecture. According to Butler, Cyril was born at or near the city of Jerusalem, and was apparently well-read in both the writings of the early Christian theologians and the Greek philosophers.",
"title": "Life and character"
},
{
"paragraph_id": 4,
"text": "Cyril was ordained a deacon by Bishop Macarius of Jerusalem in about 335 and a priest some eight years later by Bishop Maximus. Around the end of 350 he succeeded Maximus in the See of Jerusalem, although the evidence for this relies on the Catecheses written by Cyril where he refers to himself as \"bishop\". Jerome also suggests Cyril was an Arian at this stage.",
"title": "Life and character"
},
{
"paragraph_id": 5,
"text": "Cyril is described as preacher and liturgist by the pilgrim Egeria.",
"title": "Life and character"
},
{
"paragraph_id": 6,
"text": "Relations between Metropolitan Acacius of Caesarea and Cyril became strained. Acacius is presented as a leading Arian by the orthodox historians, and his opposition to Cyril in the 350s is attributed by these writers to this. Sozomen also suggests that the tension may have been increased by Acacius's jealousy of the importance assigned to Cyril's See by the Council of Nicaea, as well as by the threat posed to Caesarea by the rising influence of the seat of Jerusalem as it developed into the prime Christian holy place and became a centre of pilgrimage.",
"title": "Episcopacy"
},
{
"paragraph_id": 7,
"text": "Acacius charged Cyril with selling church property. The city of Jerusalem had suffered drastic food shortages at which point church historians Sozomen and Theodoret report \"Cyril secretly sold sacramental ornaments of the church and a valuable holy robe, fashioned with gold thread that the emperor Constantine had once donated for the bishop to wear when he performed the rite of Baptism\", possibly to keep people from starving.",
"title": "Episcopacy"
},
{
"paragraph_id": 8,
"text": "For two years, Cyril resisted Acacius' summons to account for his actions, but a church council held under Acacius's influence in 357 deposed Cyril in his absence, and Cyril took refuge with Silvanus, Bishop of Tarsus. The following year, 359, in an atmosphere more hostile to Acacius, the Council of Seleucia reinstated Cyril and deposed Acacius. In 360 this was reversed by Emperor Constantius again, and Cyril suffered another year's exile from Jerusalem until the Emperor Julian's accession allowed him to return in 361.",
"title": "Episcopacy"
},
{
"paragraph_id": 9,
"text": "Cyril was once again banished from Jerusalem by the Arian Emperor Valens in 367, but was able to return again after Valens's death in 378, after which he remained undisturbed until his death in 386. In 380, Gregory of Nyssa came to Jerusalem on the recommendation of a council held at Antioch in the preceding year. He seemingly found the faith in good shape, but worried that the city was prey to parties and corrupt in morals. Cyril's jurisdiction over Jerusalem was expressly confirmed by the First Council of Constantinople (381), at which he was present. At that council he voted for acceptance of the term homoousios (which defined the nature between \"God the Father\", and \"God the Son\"), having been finally convinced that there was no better alternative. His story is perhaps best representative of those Eastern bishops (perhaps a majority) initially mistrustful of Nicaea, who came to accept the creed of that council, and the doctrine of the homoousion.",
"title": "Episcopacy"
},
{
"paragraph_id": 10,
"text": "Though his theology was at first somewhat indefinite in phraseology, he undoubtedly gave a thorough adhesion to the Nicene Orthodoxy. Even if he did avoid the debatable term homoousios, he expressed its sense in many passages, which exclude equally Patripassianism, Sabellianism, and the formula \"there was a time when the Son was not\" attributed to Arius. In other points he takes the ordinary ground of the Eastern Fathers, as in the emphasis he lies on the freedom of the will, the autexousion (αὐτεξούσιον), and in his view of the nature of sin. To him sin is the consequence of freedom, not a natural condition. The body is not the cause, but the instrument of sin. The remedy for it is repentance, on which he insists. Like many of the Eastern Fathers, he focuses on high moral living as essential to true Christianity. His doctrine of the Resurrection is not quite so realistic as that of other Fathers; but his conception of the Church is decidedly empirical: the existing Church form is the true one, intended by Christ, the completion of the Church of the Old Testament. His interpretation of the Eucharist is disputed. Some argue he sometimes seems to approach the symbolic view, though he professes a strong realistic doctrine. The bread and wine are not mere elements, but the body and blood of Christ.",
"title": "Theological position"
},
{
"paragraph_id": 11,
"text": "Cyril's writings are filled with the loving and forgiving nature of God which was somewhat uncommon during his time period. Cyril fills his writings with great lines of the healing power of forgiveness and the Holy Spirit, like \"The Spirit comes gently and makes himself known by his fragrance. He is not felt as a burden for God is light, very light. Rays of light and knowledge stream before him as the Spirit approaches. The Spirit comes with the tenderness of a true friend to save, to heal, to teach, to counsel, to strengthen and to console\". Cyril himself followed God's message of forgiveness many times throughout his life. This is most clearly seen in his two major exiles where Cyril was disgraced and forced to leave his position and his people behind. He never wrote or showed any ill will towards those who wronged him. Cyril stressed the themes of healing and regeneration in his catechesis.",
"title": "Theological position"
},
{
"paragraph_id": 12,
"text": "Cyril's famous twenty-three lectures given to catechumens in Jerusalem being prepared for, and after, baptism are best considered in two parts: the first eighteen lectures are commonly known as the Catechetical Lectures, Catechetical Orations or Catechetical Homilies, while the final five are often called the Mystagogic Catecheses (μυσταγωγικαί), because they deal with the mysteries (μυστήρια) i.e. Sacraments of Baptism, Confirmation and the Eucharist.",
"title": "Catechetical lectures"
},
{
"paragraph_id": 13,
"text": "His catechetical lectures (Greek Κατηχήσεις, Katēchēseis) are generally assumed, on the basis of limited evidence, to have been delivered either in Cyril's early years as a bishop, around 350, or perhaps in 348, while Cyril was still a priest, deputising for his bishop, Maximus. The Catechetical Lectures were given in the Martyrion, the basilica erected by Constantine. They contain instructions on the principal topics of Christian faith and practice, in a popular rather than scientific manner, full of a warm pastoral love and care for the catechumens to whom they were delivered. Each lecture is based upon a text of Scripture, and there is an abundance of Scriptural quotation throughout. In the Catechetical Lectures, parallel with the exposition of the Creed as it was then received in the Church of Jerusalem are vigorous polemics against pagan, Jewish, and heretical errors. They are of great importance for the light which they throw upon the method of instruction usual of that age, as well as upon the liturgical practises of the period, of which they give the fullest account extant.",
"title": "Catechetical lectures"
},
{
"paragraph_id": 14,
"text": "It is not only among us, who are marked with the name of Christ, that the dignity of faith is great; all the business of the world, even of those outside the Church, is accomplished by faith. By faith, marriage laws join in union persons who were strangers to one another. By faith, agriculture is sustained; for a man does not endure the toil involved unless he believes he will reap a harvest. By faith, seafaring men, entrusting themselves to a tiny wooden craft, exchange the solid element of the land for the unstable motion of the waves.\"",
"title": "Catechetical lectures"
},
{
"paragraph_id": 15,
"text": "In the 13th lecture, Cyril of Jerusalem discusses the Crucifixion and burial of Jesus Christ. The main themes that Cyril focuses on in these lectures are Original sin and Jesus' sacrificing himself to save us from our sins. Also, the burial and Resurrection which occurred three days later proving the divinity of Jesus Christ and the loving nature of the Father. Cyril was very adamant about the fact that Jesus went to his death with full knowledge and willingness. Not only did he go willingly but throughout the process he maintained his faith and forgave all those who betrayed him and engaged in his execution. Cyril writes \"who did not sin, neither was deceit found in his mouth, who, when he was reviled, did not revile, when he suffered did not threaten\". This line by Cyril shows his belief in the selflessness of Jesus especially in this last final act of Love. The lecture also gives a sort of insight to what Jesus may have been feeling during the execution from the whippings and beatings, to the crown of thorns, to the nailing on the cross. Cyril intertwines the story with the messages Jesus told throughout his life before his execution relating to his final act. For example, Cyril writes \"I gave my back to those who beat me and my cheeks to blows; and my face I did not shield from the shame of spitting\". This clearly reflects the teachings of Jesus to turn the other cheek and not raising your hands against violence because violence just begets violence begets violence. The segment of the Catechesis really reflects the voice Cyril maintained in all of his writing. The writings always have the central message of the Bible; Cyril is not trying to add his own beliefs in reference to religious interpretation and remains grounded in true biblical teachings.",
"title": "Catechetical lectures"
},
{
"paragraph_id": 16,
"text": "Danielou sees the baptism rite as carrying eschatological overtones, in that \"to inscribe for baptism is to write one's name in the register of the elect in heaven\".",
"title": "Catechetical lectures"
},
{
"paragraph_id": 17,
"text": "Oded Irshai observed that Cyril lived in a time of intense apocalyptic expectation, when Christians were eager to find apocalyptic meaning in every historical event or natural disaster. Cyril spent a good part of his episcopacy in intermittent exile from Jerusalem. Abraham Malherbe argued that when a leader's control over a community is fragile, directing attention to the imminent arrival of the antichrist effectively diverts attention from that fragility.",
"title": "Eschatology"
},
{
"paragraph_id": 18,
"text": "Soon after his appointment, Cyril in his Letter to Constantius of 351 recorded the appearance of a cross of light in the sky above Golgotha, witnessed by the whole population of Jerusalem. The Greek church commemorates this miracle on 7 May. Though in modern times the authenticity of the Letter has been questioned, on the grounds that the word homoousios occurs in the final blessing, many scholars believe this may be a later interpolation, and accept the letter's authenticity on the grounds of other pieces of internal evidence.",
"title": "Eschatology"
},
{
"paragraph_id": 19,
"text": "Cyril interpreted this as both a sign of support for Constantius, who was soon to face the usurper Magnentius, and as announcing the Second Coming, which was soon to take place in Jerusalem. Not surprisingly, in Cyril's eschatological analysis, Jerusalem holds a central position.",
"title": "Eschatology"
},
{
"paragraph_id": 20,
"text": "Matthew 24:6 speaks of \"wars and reports of wars\", as a sign of the End Times, and it is within this context that Cyril read Julian's war with the Persians. Matthew 24:7 speaks of \"earthquakes from place to place\", and Jerusalem experienced an earthquake in 363 at a time when Julian was attempting to rebuild the temple in Jerusalem. Embroiled in a rivalry with Acacius of Caesarea over the relative primacy of their respective sees, Cyril saw even ecclesial discord a sign of the Lord's coming. Catechesis 15 would appear to cast Julian as the antichrist, although Irshai views this as a later interpolation.",
"title": "Eschatology"
},
{
"paragraph_id": 21,
"text": "\"In His first coming, He endured the Cross, despising shame; in His second, He comes attended by a host of Angels, receiving glory. We rest not then upon His first advent only, but look also for His second.\" He looked forward to the Second Advent which would bring an end to the world and then the created world to be made anew. At the Second Advent he expected to rise in the resurrection if it came after his time on earth.",
"title": "Eschatology"
},
{
"paragraph_id": 22,
"text": "There has been considerable controversy over the date and authorship of the Mystagogic Catecheses, addressed to the newly baptized, in preparation for the reception of Holy Communion, with some scholars having attributed them to Cyril's successor as Bishop of Jerusalem, John. Many scholars would currently view the Mystagogic Catecheses as being written by Cyril, but in the 370s or 380s, rather than at the same time as the Catechetical Lectures.",
"title": "Mystagogic Catecheses"
},
{
"paragraph_id": 23,
"text": "According to the Spanish pilgrim Egeria, these mystagogical catecheses were given to the newly baptised in the Church of the Anastasis in the course of Easter Week.",
"title": "Mystagogic Catecheses"
}
] | Cyril of Jerusalem was a theologian of the Early Church. About the end of AD 350, he succeeded Maximus as Bishop of Jerusalem, but was exiled on more than one occasion due to the enmity of Acacius of Caesarea, and the policies of various emperors. Cyril left important writings documenting the instruction of catechumens and the order of the Liturgy in his day. Cyril is venerated as a saint within the Roman Catholic Church, the Eastern Orthodox Church, Oriental Orthodox Church, and the Anglican Communion. In 1883, Cyril was declared a Doctor of the Church by Pope Leo XIII. Cyril is remembered in the Church of England with a commemoration on 18 March. | 2001-12-08T05:51:37Z | 2023-12-30T12:21:51Z | [
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7,388 | Hanukkah | Hanukkah (/ˈhɑːnəkə/; חֲנֻכָּה Ḥănukkā listen) is a Jewish festival commemorating the recovery of Jerusalem and subsequent rededication of the Second Temple at the beginning of the Maccabean Revolt against the Seleucid Empire in the 2nd century BCE.
Hanukkah is observed for eight nights and days, starting on the 25th day of Kislev according to the Hebrew calendar, which may occur at any time from late November to late December in the Gregorian calendar. The festival is observed by lighting the candles of a candelabrum with nine branches, commonly called a menorah or hanukkiah. One branch is typically placed above or below the others and its candle is used to light the other eight candles. This unique candle is called the shammash (שַׁמָּשׁ, "attendant"). Each night, one additional candle is lit by the shammash until all eight candles are lit together on the final night of the festival.
Other Hanukkah festivities include singing Hanukkah songs, playing the game of dreidel and eating oil-based foods, such as latkes and sufganiyot, and dairy foods. Since the 1970s, the worldwide Chabad Hasidic movement has initiated public menorah lightings in open public places in many countries.
Originally instituted as a feast "in the manner of Sukkot (Booths)", it does not come with the corresponding obligations, and is therefore a relatively minor holiday in strictly religious terms. Nevertheless, Hanukkah has attained major cultural significance in North America and elsewhere, especially among secular Jews, due to often occurring around the same time as Christmas during the festive season.
The name "Hanukkah" derives from the Hebrew verb "חנך", meaning "to dedicate". On Hanukkah, the Maccabean Jews regained control of Jerusalem and rededicated the Temple.
Many homiletical explanations have been given for the name:
In Hebrew, the word Hanukkah is written חֲנֻכָּה or חֲנוּכָּה (Ḥănukā). It is most commonly transliterated to English as Hanukkah or Chanukah. The spelling Hanukkah, which is based on using characters of the English alphabet as symbols to re-create the word's correct spelling in Hebrew, is the most common and the preferred choice of Merriam–Webster, Collins English Dictionary, the Oxford Style Manual, and the style guides of The New York Times and The Guardian. The sound represented by Ch ([χ], similar to the Scottish pronunciation of loch) is not native to the English language, although it is native to the Welsh language. Furthermore, the letter ḥeth (ח), which is the first letter in the Hebrew spelling, is pronounced differently in modern Hebrew (voiceless uvular fricative) from in classical Hebrew (voiceless pharyngeal fricative [ħ]), and neither of those sounds is unambiguously representable in English spelling. However, its original sound is closer to the English H than to the Scottish Ch, and Hanukkah more accurately represents the spelling in the Hebrew alphabet. Moreover, the 'kaf' consonant is geminate in classical (but not modern) Hebrew. Adapting the classical Hebrew pronunciation with the geminate and pharyngeal Ḥeth can lead to the spelling Hanukkah, while adapting the modern Hebrew pronunciation with no gemination and uvular Ḥeth leads to the spelling Chanukah.
In Modern Hebrew, Hanukkah may also be called the Festival of Lights (חַג הַאוּרִים, Ḥag HaUrim), based on a comment by Josephus in Antiquities of the Jews, καὶ ἐξ ἐκείνου μέχρι τοῦ δεῦρο τὴν ἑορτὴν ἄγομεν καλοῦντες αὐτὴν φῶτα "And from then on we celebrate this festival, and we call it Lights". The first Hebrew translation of Antiquities (1864) used (חַג הַמְּאֹרוֹת) "Festival of Lamps", but the translation "Festival of Lights" (חַג הַאוּרִים) appeared by the end of the nineteenth century.
The story of Hanukkah is told in the books of the First and Second Maccabees, which describe in detail the rededication of the Temple in Jerusalem and the lighting of the menorah. These books, however, are not a part of the canonized Masoretic Text version of the Tanakh (Hebrew and Aramaic language Jewish Bible) used and accepted by normative Rabbinical Judaism and therefore modern Jews (as copied, edited and distributed by a group of Jews known as the Masoretes between the 7th and 10th centuries of the Common Era). However, the books of Maccabees were included among the deuterocanonical books added to the Septuagint, a Jewish scholarly Greek-language translation of the Hebrew Bible originally compiled in the mid-3rd century BCE. The Roman Catholic and Orthodox Churches consider the books of Maccabees as a canonical part of the Old Testament.
The eight-day rededication of the temple is described in 1 Maccabees, though the miracle of the oil does not appear here. A story similar in character, and older in date, is the one alluded to in 2 Maccabees according to which the relighting of the altar fire by Nehemiah was due to a miracle which occurred on the 25th of Kislev, and which appears to be given as the reason for the selection of the same date for the rededication of the altar by Judah Maccabee. The above account in 1 Maccabees, as well as 2 Maccabees portrays the feast as a delayed observation of the eight-day Feast of Booths (Sukkot); similarly 2 Maccabees explains the length of the feast as "in the manner of the Feast of Booths".
Megillat Taanit (1st century) contains a list of festive days on which fasting or eulogizing is forbidden. It specifies, "On the 25th of [Kislev] is Hanukkah of eight days, and one is not to eulogize" and then references the story of the rededication of the Temple.
The Mishna (late 2nd century) mentions Hanukkah in several places, but never describes its laws in detail and never mentions any aspect of the history behind it. To explain the Mishna's lack of a systematic discussion of Hanukkah, Nissim ben Jacob postulated that information on the holiday was so commonplace that the Mishna felt no need to explain it. Modern scholar Reuvein Margolies suggests that as the Mishnah was redacted after the Bar Kochba revolt, its editors were reluctant to include explicit discussion of a holiday celebrating another relatively recent revolt against a foreign ruler, for fear of antagonizing the Romans.
The miracle of the one-day supply of oil miraculously lasting eight days is described in the Talmud, committed to writing about 600 years after the events described in the books of Maccabees. The Talmud says that after the forces of Antiochus IV had been driven from the Temple, the Maccabees discovered that almost all of the ritual olive oil had been profaned. They found only a single container that was still sealed by the High Priest, with enough oil to keep the menorah in the Temple lit for a single day. They used this, yet it burned for eight days (the time it took to have new oil pressed and made ready).
The Talmud presents three options:
Except in times of danger, the lights were to be placed outside one's door, on the opposite side of the mezuza, or in the window closest to the street. Rashi, in a note to Shabbat 21b, says their purpose is to publicize the miracle. The blessings for Hanukkah lights are discussed in tractate Succah, p. 46a.
Megillat Antiochus (probably composed in the 2nd century) concludes with the following words:
...After this, the sons of Israel went up to the Temple and rebuilt its gates and purified the Temple from the dead bodies and from the defilement. And they sought after pure olive oil to light the lamps therewith, but could not find any, except one bowl that was sealed with the signet ring of the High Priest from the days of Samuel the prophet and they knew that it was pure. There was in it [enough oil] to light [the lamps therewith] for one day, but the God of heaven whose name dwells there put therein his blessing and they were able to light from it eight days. Therefore, the sons of Ḥashmonai made this covenant and took upon themselves a solemn vow, they and the sons of Israel, all of them, to publish amongst the sons of Israel, [to the end] that they might observe these eight days of joy and honour, as the days of the feasts written in [the book of] the Law; [even] to light in them so as to make known to those who come after them that their God wrought for them salvation from heaven. In them, it is not permitted to mourn, neither to decree a fast [on those days], and anyone who has a vow to perform, let him perform it.
The Al HaNissim prayer is recited on Hanukkah as an addition to the Amidah prayer, which was formalized in the late 1st century. Al HaNissim describes the history of the holiday as follows:
The Jewish historian Titus Flavius Josephus narrates in his book, Jewish Antiquities XII, how the victorious Judas Maccabeus ordered lavish yearly eight-day festivities after rededicating the Temple in Jerusalem that had been profaned by Antiochus IV Epiphanes. Josephus does not say the festival was called Hanukkah but rather the "Festival of Lights":
In the New Testament, John 10:22–23 says, "Then came the Festival of Dedication at Jerusalem. It was winter, and Jesus was in the temple courts walking in Solomon's Colonnade" (NIV). The Greek noun used appears in the neuter plural as "the renewals" or "the consecrations" (Greek: τὰ ἐγκαίνια; ta enkaínia). The same root appears in 2 Esdras 6:16 in the Septuagint to refer specifically to Hanukkah. This Greek word was chosen because the Hebrew word for 'consecration' or 'dedication' is Hanukkah (חנכה). The Aramaic New Testament uses the Aramaic word hawdata (a close synonym), which literally means 'renewal' or 'to make new'.
After the death of Alexander the Great in 323 BCE, Judea became part of the Ptolemaic Kingdom of Egypt until 200 BCE, when King Antiochus III the Great of Syria defeated King Ptolemy V Epiphanes of Egypt at the Battle of Panium. Judea then became part of the Seleucid Empire of Syria. King Antiochus III the Great, wanting to conciliate his new Jewish subjects, guaranteed their right to "live according to their ancestral customs" and to continue to practice their religion in the Temple of Jerusalem. The Seleucids, like the Ptolemies before them, held a suzerainty over Judea, where they respected Jewish culture and protected Jewish institutions. This policy was drastically reversed by Antiochus IV Epiphanes, the son of Antiochus III, seemingly after what was either a dispute over leadership of the Temple in Jerusalem and the office of High Priest, or possibly a revolt whose nature was lost to time after being crushed. In 175 BCE, Antiochus IV invaded Judea at the request of the sons of Tobias. The Tobiads, who led the Hellenizing Jewish faction in Jerusalem, were expelled to Syria around 170 BCE when the high priest Onias and his pro-Egyptian faction wrested control from them. The exiled Tobiads lobbied Antiochus IV Epiphanes to recapture Jerusalem. As Flavius Josephus relates:
The king being thereto disposed beforehand, complied with them, and came upon the Jews with a great army, and took their city by force, and slew a great multitude of those that favored Ptolemy, and sent out his soldiers to plunder them without mercy. He also spoiled the temple, and put a stop to the constant practice of offering a daily sacrifice of expiation for three years and six months.
When the Second Temple in Jerusalem was looted and services stopped, Judaism was outlawed. In 167 BCE, Antiochus ordered an altar to Zeus erected in the Temple. He banned brit milah (circumcision) and ordered pigs to be sacrificed at the altar of the temple.
Antiochus's actions provoked a large-scale revolt. Mattathias (Mattityahu), a Jewish priest, and his five sons Jochanan, Simeon, Eleazar, Jonathan, and Judah led a rebellion against Antiochus. It started with Mattathias killing first a Jew who wanted to comply with Antiochus's order to sacrifice to Zeus, and then a Greek official who was to enforce the government's behest (1 Mac. 2, 24–25). Judah became known as Yehuda HaMakabi ("Judah the Hammer"). By 166 BCE, Mattathias had died, and Judah took his place as leader. By 164 BCE, the Jewish revolt against the Seleucid monarchy was successful. The Temple was liberated and rededicated. The festival of Hanukkah was instituted to celebrate this event. Judah ordered the Temple to be cleansed, a new altar to be built in place of the polluted one and new holy vessels to be made. According to the Talmud,
"For when the Greeks entered the Sanctuary, they defiled all the oils therein, and when the Hasmonean dynasty prevailed against and defeated them, they made search and found only one cruse of oil which lay with the seal of the kohen gadol (high priest), but which contained sufficient [oil] for one day's lighting only; yet a miracle was wrought therein, and they lit [the lamp] therewith for eight days. The following year these [days] were appointed a Festival with [the recital of] Hallel and thanksgiving."
—Shabbat 21b
Tertiary sources in the Jewish tradition make reference to this account.
Maimonides (12th century) described Hanukkah as follows:
When, on the twenty-fifth of Kislev, the Jews had emerged victorious over their foes and destroyed them, they re-entered the Temple where they found only one jar of pure oil, enough to be lit for only a single day; yet they used it for lighting the required set of lamps for eight days, until they managed to press olives and produce pure oil. Because of this, the sages of that generation ruled that the eight days beginning with the twenty-fifth of Kislev should be observed as days of rejoicing and praising the Lord. Lamps are lit in the evening over the doors of the homes, on each of the eight nights, so as to display the miracle. These days are called Hanukkah, when it is forbidden to lament or to fast, just as it is on the days of Purim. Lighting the lamps during the eight days of Hanukkah is a religious duty imposed by the sages.
Some modern scholars, following the account in 2 Maccabees, observe that the king was intervening in an internal civil war between the Maccabean Jews and the Hellenized Jews in Jerusalem. These competed violently over who would be the High Priest, with traditionalists with Hebrew/Aramaic names like Onias contesting with Hellenizing High Priests with Greek names like Jason and Menelaus. In particular, Jason's Hellenistic reforms would prove to be a decisive factor leading to eventual conflict within the ranks of Judaism. Other authors point to possible socioeconomic reasons in addition to the religious reasons behind the civil war.
What began in many respects as a civil war escalated when the Hellenistic kingdom of Syria sided with the Hellenizing Jews in their conflict with the traditionalists. As the conflict escalated, Antiochus took the side of the Hellenizers by prohibiting the religious practices the traditionalists had rallied around. This may explain why the king, in a total departure from Seleucid practice in all other places and times, banned a traditional religion.
The miracle of the oil is widely regarded as a legend and its authenticity has been questioned since the Middle Ages. However, given the famous question Joseph Karo (1488-1575) posed concerning why Hanukkah is celebrated for eight days when the miracle was only for seven days (since there was enough oil for one day), it was clear that writing in the 16th century CE, he believed it to be a historical event. This belief has been adopted by most of Orthodox Judaism, in as much as Karo's Shulchan Aruch is a main code of Jewish Law. The menorah first began to be used as a symbol of Judaism in the Hasmonean period – appearing on coins issued by Hasmonean king Mattathias Antigonus between 40 and 37 BCE, but these coins depict a seven-branched Temple menorah, not a nine-branched vessel that would correspond to an eight-day oil miracle.
Selected battles between the Maccabees and the Seleucid Syrian-Greeks:
Hanukkah is celebrated with a series of rituals that are performed every day throughout the eight-day holiday, some are family-based and others communal. There are special additions to the daily prayer service, and a section is added to the blessing after meals.
Hanukkah is not a "Sabbath-like" holiday, and there is no obligation to refrain from activities that are forbidden on the Sabbath, as specified in the Shulkhan Arukh. Adherents go to work as usual but may leave early in order to be home to kindle the lights at nightfall. There is no religious reason for schools to be closed, although in Israel schools close from the second day for the whole week of Hanukkah. Many families exchange gifts each night, such as books or games, and "Hanukkah Gelt" is often given to children. Fried foods—such as latkes (potato pancakes), jelly doughnuts (sufganiyot) and Sephardic bimuelos—are eaten to commemorate the importance of oil during the celebration of Hanukkah. Some also have a custom of eating dairy products to remember Judith and how she overcame Holofernes by feeding him cheese, which made him thirsty, and giving him wine to drink. When Holofernes became very drunk, Judith cut off his head.
Each night throughout the eight-day holiday, a candle or oil-based light is lit. As a universally practiced "beautification" (hiddur mitzvah) of the mitzvah, the number of lights lit is increased by one each night. An extra light called a shammash, meaning "attendant" or "sexton," is also lit each night, and is given a distinct location, usually higher, lower, or to the side of the others.
Among Ashkenazim the tendency is for every male member of the household (and in many families, girls as well) to light a full set of lights each night, while among Sephardim the prevalent custom is to have one set of lights for the entire household.
The purpose of the shammash is to adhere to the prohibition, specified in the Talmud, against using the Hanukkah lights for anything other than publicizing and meditating on the Hanukkah miracle. This differs from Sabbath candles which are meant to be used for illumination and lighting. Hence, if one were to need extra illumination on Hanukkah, the shammash candle would be available, and one would avoid using the prohibited lights. Some, especially Ashkenazim, light the shammash candle first and then use it to light the others. So altogether, including the shammash, two lights are lit on the first night, three on the second and so on, ending with nine on the last night, for a total of 44 (36, excluding the shammash). It is Sephardic custom not to light the shammash first and use it to light the rest. Instead, the shammash candle is the last to be lit, and a different candle or a match is used to light all the candles. Some Hasidic Jews follow this Sephardic custom as well.
The lights can be candles or oil lamps. Electric lights are sometimes used and are acceptable in places where open flame is not permitted, such as a hospital room, or for the very elderly and infirm; however, those who permit reciting a blessing over electric lamps only allow it if it is incandescent and battery operated (an incandescent flashlight would be acceptable for this purpose), while a blessing may not be recited over a plug-in menorah or lamp. Most Jewish homes have a special candelabrum referred to as either a Chanukiah (the modern Israeli term) or a menorah (the traditional name, simply Hebrew for 'lamp'). Many families use an oil lamp (traditionally filled with olive oil) for Hanukkah. Like the candle Chanukiah, it has eight wicks to light plus the additional shammash light.
In the United States, Hanukkah became a more visible festival in the public sphere from the 1970s when Rabbi Menachem M. Schneerson called for public awareness and observance of the festival and encouraged the lighting of public menorahs.
The reason for the Hanukkah lights is not for the "lighting of the house within", but rather for the "illumination of the house without," so that passersby should see it and be reminded of the holiday's miracle (i.e. that the sole cruse of pure oil found which held enough oil to burn for one night actually burned for eight nights). Accordingly, lamps are set up at a prominent window or near the door leading to the street. It is customary amongst some Ashkenazi Jews to have a separate menorah for each family member (customs vary), whereas most Sephardi Jews light one for the whole household. Only when there was danger of antisemitic persecution were lamps supposed to be hidden from public view, as was the case in Persia under the rule of the Zoroastrians, or in parts of Europe before and during World War II. However, most Hasidic groups light lamps near an inside doorway, not necessarily in public view. According to this tradition, the lamps are placed on the opposite side from the mezuzah, so people passing through the door are surrounded by the holiness of mitzvot (the commandments).
Generally, women are exempt in Jewish law from time-bound positive commandments, although the Talmud requires that women engage in the mitzvah of lighting Hanukkah candles "for they too were involved in the miracle."
Some Jews in North America and Israel have taken up environmental concerns in relation to Hanukkah's "miracle of the oil", emphasizing reflection on energy conservation and energy independence. An example of this is the Coalition on the Environment and Jewish Life's renewable energy campaign.
Hanukkah lights should usually burn for at least half an hour after it gets dark. Many light at sundown and those who do so should be careful to have enough oil or wax to last until half an hour after dark. Most Hasidim and many other communities light later, generally around nightfall. Many Hasidic Rebbes light much later to fulfill the obligation of publicizing the miracle by the presence of their Hasidim when they kindle the lights.
Inexpensive small wax candles sold for Hanukkah burn for approximately half an hour so should be lit no earlier than nightfall. Friday night presents a problem, however. Since candles may not be lit on Shabbat itself, the candles must be lit before sunset. However, they must remain lit through the lighting of the Shabbat candles. Therefore, the Hanukkah menorah is lit first with larger candles than usual, followed by the Shabbat candles. At the end of the Shabbat, there are those who light the Hanukkah lights before Havdalah and those who make Havdalah before the lighting Hanukkah lights.
If for whatever reason one didn't light at sunset or nightfall, the lights should be kindled later, as long as there are people in the streets. Later than that, the lights should still be kindled, but the blessings should be recited only if there is at least somebody else awake in the house and present at the lighting of the Hannukah lights.
Typically two blessings (brachot; singular: brachah) are recited during this eight-day festival when lighting the candles. On the first night only, the shehecheyanu blessing is added, making a total of three blessings.
The first blessing is recited before the candles are lit, and while most recite the other blessing(s) beforehand as well, some have the custom to recite them after. On the first night of Hanukkah one light (candle or oil) is lit on the right side of the menorah, on the following night a second light is placed to the left of the first but it is lit first, and so on, proceeding from placing candles right to left but lighting them from left to right over the eight nights.
Transliteration: Barukh ata Adonai Eloheinu, melekh ha'olam, asher kid'shanu b'mitzvotav v'tzivanu l'hadlik ner Hanukkah.
Translation: "Blessed are You, LORD our God, King of the universe, Who has sanctified us with His commandments and commanded us to kindle the Hanukkah light[s]."
Transliteration: Barukh ata Adonai Eloheinu, melekh ha'olam, she'asa nisim la'avoteinu ba'yamim ha'heim ba'z'man ha'ze.
Translation: "Blessed are You, LORD our God, King of the universe, Who performed miracles for our ancestors in those days at this time..."
After the lights are kindled the hymn Hanerot Halalu is recited. There are several different versions; the version presented here is recited in many Ashkenazic communities:
In the Ashkenazi tradition, each night after the lighting of the candles, the hymn Ma'oz Tzur is sung. The song contains six stanzas. The first and last deal with general themes of divine salvation, and the middle four deal with events of persecution in Jewish history, praising God for survival despite these tragedies (the exodus from Egypt, the Babylonian captivity, the miracle of the holiday of Purim, the Hasmonean victory) and expressing a longing for the days when Judea will finally triumph over Rome.
The song was composed in the thirteenth century by a poet only known through the acrostic found in the first letters of the original five stanzas of the song: Mordechai. The familiar tune is most probably a derivation of a German Protestant church hymn or a popular folk song.
After lighting the candles and Ma'oz Tzur, singing other Hanukkah songs is customary in many Jewish homes. Some Hasidic and Sephardi Jews recite Psalms, such as Psalm 30, Psalm 67, and Psalm 91. In North America and in Israel it is common to exchange presents or give children presents at this time. In addition, many families encourage their children to give tzedakah (charity) in lieu of presents for themselves.
"We thank You also for the miraculous deeds and for the redemption and for the mighty deeds and the saving acts wrought by You, as well as for the wars which You waged for our ancestors in ancient days at this season. In the days of the Hasmonean Mattathias, son of Johanan the high priest, and his sons, when the iniquitous Greco-Syrian kingdom rose up against Your people Israel, to make them forget Your Torah and to turn them away from the ordinances of Your will, then You in your abundant mercy rose up for them in the time of their trouble, pled their cause, executed judgment, avenged their wrong, and delivered the strong into the hands of the weak, the many into the hands of few, the impure into the hands of the pure, the wicked into the hands of the righteous, and insolent ones into the hands of those occupied with Your Torah. Both unto Yourself did you make a great and holy name in Thy world, and unto Your people did You achieve a great deliverance and redemption. Whereupon your children entered the sanctuary of Your house, cleansed Your temple, purified Your sanctuary, kindled lights in Your holy courts, and appointed these eight days of Hanukkah in order to give thanks and praises unto Your holy name."
Translation of Al ha-Nissim
An addition is made to the "hoda'ah" (thanksgiving) benediction in the Amidah (thrice-daily prayers), called Al HaNissim ("On/about the Miracles"). This addition refers to the victory achieved over the Syrians by the Hasmonean Mattathias and his sons.
The same prayer is added to the grace after meals. In addition, the Hallel (praise) Psalms are sung during each morning service and the Tachanun penitential prayers are omitted.
The Torah is read every day in the shacharit morning services in synagogue, on the first day beginning from Numbers 6:22 (according to some customs, Numbers 7:1), and the last day ending with Numbers 8:4. Since Hanukkah lasts eight days it includes at least one, and sometimes two, Jewish Sabbaths (Saturdays). The weekly Torah portion for the first Sabbath is almost always Miketz, telling of Joseph's dream and his enslavement in Egypt. The Haftarah reading for the first Sabbath Hanukkah is Zechariah 2:14 – Zechariah 4:7. When there is a second Sabbath on Hanukkah, the Haftarah reading is from 1 Kings 7:40–50.
The Hanukkah menorah is also kindled daily in the synagogue, at night with the blessings and in the morning without the blessings.
The menorah is not lit during Shabbat, but rather prior to the beginning of Shabbat as described above and not at all during the day. During the Middle Ages "Megillat Antiochus" was read in the Italian synagogues on Hanukkah just as the Book of Esther is read on Purim. It still forms part of the liturgy of the Yemenite Jews.
The last day of Hanukkah is known by some as Zot Hanukkah and by others as Chanukat HaMizbeach, from the verse read on this day in the synagogue Numbers 7:84, Zot Hanukkat Hamizbe'ach: "This was the dedication of the altar". According to the teachings of Kabbalah and Hasidism, this day is the final "seal" of the High Holiday season of Yom Kippur and is considered a time to repent out of love for God. In this spirit, many Hasidic Jews wish each other Gmar chatimah tovah ("may you be sealed totally for good"), a traditional greeting for the Yom Kippur season. It is taught in Hasidic and Kabbalistic literature that this day is particularly auspicious for the fulfillment of prayers.
It is customary for women not to work for at least the first half-hour of the candles' burning, and some have the custom not to work for the entire time of burning. It is also forbidden to fast or to eulogize during Hanukkah.
Some Hasidic scholars teach that the Hanukkah is in fact the final conclusion of God's judgment extending High Holy Days of Rosh Hashana when humanity is judged and Yom Kippur when the judgment is sealed:
Hanukkah songs (in Hebrew except where indicated) include "Ma'oz Tzur" (Rock of Ages), "Latke'le Latke'le" (Yiddish: "Little Latke, Little Latke"), "Hanukkiah Li Yesh" ("I Have a Hanukkah Menorah"), "Ocho Kandelikas" (Judeo-Spanish: "Eight Little Candles"), "Kad Katan" ("A Small Jug"), "S'vivon Sov Sov Sov" ("Dreidel, Spin and Spin"), "Haneirot Halolu" ("These Candles Which We Light"), "Mi Yimalel" ("Who Can Retell") and "Ner Li, Ner Li" ("I have a Candle").
Among the best known songs in English-speaking countries are "Dreidel, Dreidel, Dreidel" and "Oh Chanukah".
In the Nadvorna Hasidic dynasty, it is customary for the rebbes to play violin after the menorah is lit.
Penina Moise's Hannukah Hymn published in the 1842 Hymns Written for the Use of Hebrew Congregations was instrumental in the beginning of Americanization of Hanukkah.
There is a custom of eating foods fried or baked in oil (preferably olive oil) to commemorate the miracle of a small flask of oil keeping the Second Temple's Menorah alight for eight days. Traditional foods include potato pancakes, known as latkes in Yiddish, especially among Ashkenazi families. Sephardi, Polish, and Israeli families eat jam-filled doughnuts (Yiddish: פּאָנטשקעס pontshkes), bimuelos (fritters) and sufganiyot which are deep-fried in oil. Italkim and Hungarian Jews traditionally eat cheese pancakes known as "cassola" or "cheese latkes".
Latkes are not popular in Israel, having been largely replaced by sufganiyot due to local economic factors, convenience and the influence of trade unions. Bakeries in Israel have popularized many new types of fillings for sufganiyot besides the traditional strawberry jelly filling, including chocolate cream, vanilla cream, caramel, cappuccino and others. In recent years, downsized, "mini" sufganiyot containing half the calories of the regular, 400-to-600-calorie version, have become popular.
Rabbinic literature also records a tradition of eating cheese and other dairy products during Hanukkah. This custom, as mentioned above, commemorates the heroism of Judith during the Babylonian captivity of the Jews and reminds us that women also played an important role in the events of Hanukkah. The deuterocanonical book of Judith (Yehudit or Yehudis in Hebrew), which is not part of the Tanakh, records that Holofernes, an Assyrian general, had surrounded the village of Bethulia as part of his campaign to conquer Judea. After intense fighting, the water supply of the Jews was cut off and the situation became desperate. Judith, a pious widow, told the city leaders that she had a plan to save the city. Judith went to the Assyrian camps and pretended to surrender. She met Holofernes, who was smitten by her beauty. She went back to his tent with him, where she plied him with cheese and wine. When he fell into a drunken sleep, Judith beheaded him and escaped from the camp, taking the severed head with her (the beheading of Holofernes by Judith has historically been a popular theme in art). When Holofernes' soldiers found his corpse, they were overcome with fear; the Jews, on the other hand, were emboldened and launched a successful counterattack. The town was saved, and the Assyrians defeated.
Roast goose has historically been a traditional Hanukkah food among Eastern European and American Jews, although the custom has declined in recent decades.
Indian Jews traditionally consume gulab jamun, fried dough balls soaked in a sweet syrup, similar to teiglach or bimuelos, as part of their Hanukkah celebrations. Italian Jews eat fried chicken, cassola (a ricotta cheese latke almost similar to a cheesecake), and fritelle de riso par Hanukkah (a fried sweet rice pancake). Romanian Jews eat pasta latkes as a traditional Hanukkah dish, and Syrian Jews consume Kibbet Yatkeen, a dish made with pumpkin and bulgur wheat similar to latkes, as well as their own version of keftes de prasa spiced with allspice and cinnamon.
After lighting the candles, it is customary to play (or spin) the dreidel. The dreidel, or sevivon in Hebrew, is a four-sided spinning top that children play with during Hanukkah. Each side is imprinted with a Hebrew letter which is an abbreviation for the Hebrew words נס גדול היה שם (Nes Gadol Haya Sham, "A great miracle happened there"), referring to the miracle of the oil that took place in the Beit Hamikdash. The fourth side of some dreidels sold in Israel are inscribed with the letter פ (Pe), rendering the acronym נס גדול היה פה (Nes Gadol Haya Po, "A great miracle happened here"), referring to the fact that the miracle occurred in the land of Israel, although this is a relatively recent innovation. Stores in Haredi neighborhoods sell the traditional Shin dreidels as well, because they understand "there" to refer to the Temple and not the entire Land of Israel, and because the Hasidic Masters ascribe significance to the traditional letters.
Chanukkah gelt (Yiddish for "Chanukkah money"), known in Israel by the Hebrew translation Hebrew: דְּמֵי חֲנֻכָּה, romanized: dmei Hanukkah, is often distributed to children during the festival of Hanukkah. The giving of Hanukkah gelt also adds to the holiday excitement. The amount is usually in small coins, although grandparents or relatives may give larger sums. The tradition of giving Chanukah gelt dates back to a long-standing East European custom of children presenting their teachers with a small sum of money at this time of year as a token of gratitude. One minhag favors the fifth night of Hanukkah for giving Hanukkah gelt. Unlike the other nights of Hanukkah, the fifth does not ever fall on the Shabbat, hence never conflicting with the Halachic injunction against handling money on the Shabbat.
The earliest Hanukkah link with the White House occurred in 1951 when Israeli Prime Minister David Ben-Gurion presented United States President Harry Truman with a Hanukkah menorah. In 1979 President Jimmy Carter took part in the first public Hanukkah candle-lighting ceremony of the National Menorah held across the White House lawn. In 1989, President George H. W. Bush displayed a menorah in the White House. In 1993, President Bill Clinton invited a group of schoolchildren to the Oval Office for a small ceremony.
The United States Postal Service has released several Hanukkah-themed postage stamps. In 1996, the United States Postal Service (USPS) issued a 32 cent Hanukkah stamp as a joint issue with Israel. In 2004, after eight years of reissuing the menorah design, the USPS issued a dreidel design for the Hanukkah stamp. The dreidel design was used through 2008. In 2009 a Hanukkah stamp was issued with a design featured a photograph of a menorah with nine lit candles. In 2008, President George W. Bush held an official Hanukkah reception in the White House where he linked the occasion to the 1951 gift by using that menorah for the ceremony, with a grandson of Ben-Gurion and a grandson of Truman lighting the candles.
In December 2014, two Hanukkah celebrations were held at the White House. The White House commissioned a menorah made by students at the Max Rayne school in Israel and invited two of its students to join U.S. President Barack Obama and First Lady Michelle Obama as they welcomed over 500 guests to the celebration. The students' school in Israel had been subjected to arson by extremists. President Obama said these "students teach us an important lesson for this time in our history. The light of hope must outlast the fires of hate. That's what the Hanukkah story teaches us. It's what our young people can teach us – that one act of faith can make a miracle, that love is stronger than hate, that peace can triumph over conflict." Rabbi Angela Warnick Buchdahl, in leading prayers at the ceremony commented on the how special the scene was, asking the President if he believed America's founding fathers could possibly have pictured that a female Asian-American rabbi would one day be at the White House leading Jewish prayers in front of the African-American president.
The dates of Hanukkah are determined by the Hebrew calendar. Hanukkah begins at the 25th day of Kislev and concludes on the second or third day of Tevet (Kislev can have 29 or 30 days). The Jewish day begins at sunset. Hanukkah dates for recent and upcoming:
In 2013, on 28 November, the American holiday of Thanksgiving fell during Hanukkah for only the third time since Thanksgiving was declared a national holiday by President Abraham Lincoln. The last time was 1899, and due to the nature of the Gregorian and Jewish calendars being slightly out of sync with each other, it will not happen again in the foreseeable future. This rare convergence prompted the creation of the neologism Thanksgivukkah.
Major Jewish holidays are those when all forms of work are forbidden, and that feature traditional holiday meals, kiddush, holiday candle-lighting, etc. Only biblical holidays fit these criteria, and Chanukah was instituted some two centuries after the Hebrew Bible was completed. Nevertheless, though Chanukah is of rabbinic origin, it is traditionally celebrated in a major and very public fashion. The requirement to position the menorah, or Chanukiah, at the door or window, symbolizes the desire to give the Chanukah miracle a high profile.
Some Jewish historians suggest a different explanation for the rabbinic reluctance to laud the militarism. First, the rabbis wrote after Hasmonean leaders had led Judea into Rome's grip and so may not have wanted to offer the family much praise. Second, they clearly wanted to promote a sense of dependence on God, urging Jews to look toward the divine for protection. They likely feared inciting Jews to another revolt that might end in disaster, as the Bar Kochba revolt did.
"Hanukkah is an ancient holiday, but a modest one. The holiday of the Hasmoneans is new, yet it is full of spiritual exaltation and national joy. What was Hanukkah forty years ago? 'Al ha-nissim' and Hallel; a short reading in the synagogue; lighting the tiny, slender wax candles or oil lights; at home, levivot [latkes-potato pancakes], cards for the older children, and sevivonim [dreidels-spinning tops] for the little ones. But what is Hanukkah today? The holiday of the Hasmoneans. A holiday of salvation. A great national holiday, celebrated in all the countries of the Diaspora with dances and speeches, melody and song, outings and parades, as if a new soul has been breathed into the ancient holiday, another spirit renewed within it. One thing is clear: if those tiny, modest candles had been extinguished in Diaspora times, if our grandparents had not preserved the traditions of Hanukkah in the synagogue and at home . .., the holiday of the Hasmoneans could never have been created. There would have been nothing to change, nothing to renew. The new soul of our times would not have found a body in which to envelop itself.”
Joseph Klausner, 1938, in Haim Harari's Sefer Hanukkah
The emergence of Jewish nationalism and the Zionist movement in the late 19th and early 20th centuries had a profound impact on the celebration and reinterpretation of Jewish holidays. These developments resulted in increased emphasis on certain Jewish celebrations, of which Hanukkah and Tu BiShvat are prominent examples.
Traditionally, Hanukkah was a minor event, but took on a new meaning following the rise of Jewish nationalism as a nationalist holiday, symbolizing the struggle of the Jewish people against foreign oppression and their desire for national re-creation. Hanukkah served as a common ground where both religious and secular Zionists could unite around their nationalist agenda. Rabbi Shmuel Mohilever, an early religious Zionist, proposed making Hanukkah the official holiday of the proto-Zionist organization Hovevei Zion in Russia in 1881. Public celebrations of Hanukkah gained prominence in the early 20th century, with parades and public events becoming common. Schools in Mandate Palestine played an early role in promoting these celebrations.
With the advent of Zionism and the state of Israel, the themes of militarism were reconsidered. In modern Israel, the national and military aspects of Hanukkah became, once again, more dominant.
While Hanukkah is a relatively minor Jewish holiday, as indicated by the lack of religious restrictions on work other than a few minutes after lighting the candles, in North America, Hanukkah in the 21st century has taken a place equal to Passover as a symbol of Jewish identity. Both the Israeli and North American versions of Hanukkah emphasize resistance, focusing on some combination of national liberation and religious freedom as the defining meaning of the holiday.
Diane Ashton attributed the increased visibility and reinvention of Hanukkah by some of the American Jewish community as a way to adapt to American life, re-inventing the festival in "the language of individualism and personal conscience derived from both Protestantism and the Enlightenment".
In the Catholic Church, Christmastide has its own Octave, being eight days especially set aside to celebrate Christmas from December 25th to January 1st. This is seen as a Christian fulfillment of the original text's demand for Hanukkah to be eight days, "And they kept the eight days with gladness, as in the feast of the tabernacles, remembering that not long afore they had held the feast of the tabernacles" (2 Macc 10:6). Advent is considered as the season of darkness preceding the season of light, Christmas, so for this reason, Christmas can be said to be the "New Hanukkah," or its fulfillment through the Nativity of Christ. This is similar to the Easter Octave being the solemn eight days of the Passover of Exodus.
In North America, Hanukkah became increasingly important to many Jewish individuals and families during the latter part of the 20th century, including a large number of secular Jews, who wanted to celebrate a Jewish alternative to the Christmas celebrations which frequently overlap with Hanukkah. Diane Ashton argues that Jewish immigrants to America raised the profile of Hanukkah as a kid-centered alternative to Christmas as early as the 1800s. This in parts mirrors the ascendancy of Christmas, which like Hanukkah increased in importance in the 1800s. During this time period, Jewish leaders (especially Reform) such as Max Lilienthal and Isaac Mayer Wise made an effort to rebrand Hanukkah and started creating Hanukkah celebration for kids at their synagogues, which included candy and singing songs. By the 1900s, it started to become a commercial holiday like Christmas, with Hanukkah gifts and decorations appearing in stores and Jewish Women's magazines printing articles on holiday decorations, children's celebrations, and gift giving. Ashton says that Jewish families did this in order to maintain a Jewish identity which is distinct from mainline Christian culture, on the other hand, the mirroring of Hanukkah and Christmas made Jewish families and kids feel that they were American. Though it was traditional for Ashkenazi Jews to give "gelt" or money to children during Hanukkah, in many families, this tradition has been supplemented with the giving of other gifts so that Jewish children can enjoy receiving gifts just like their Christmas-celebrating peers do. Children play a big role in Hanukkah, and Jewish families with children are more likely to celebrate it than childless Jewish families, and sociologists hypothesize that this is because Jewish parents do not want their kids to be alienated from their non-Jewish peers who celebrate Christmas. Recent celebrations have also seen the presence of the Hanukkah bush, which is considered a Jewish counterpart to the Christmas tree. Today, the presence of Hanukkah bushes is generally discouraged by most rabbis, but some Reform, Reconstructionist and more liberal Conservative rabbis do not object, they also do not object to the presence of Christmas trees.
In December 2022, New York City Mayor Eric Adams, Reverends Al Sharpton and Conrad Tillard, businessman Robert F. Smith, Rabbi Shmuley Boteach, and Elisha Wiesel joined to celebrate Hanukkah and Kwanzaa together, and combat racism and antisemitism, at Carnegie Hall. | [
{
"paragraph_id": 0,
"text": "Hanukkah (/ˈhɑːnəkə/; חֲנֻכָּה Ḥănukkā listen) is a Jewish festival commemorating the recovery of Jerusalem and subsequent rededication of the Second Temple at the beginning of the Maccabean Revolt against the Seleucid Empire in the 2nd century BCE.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Hanukkah is observed for eight nights and days, starting on the 25th day of Kislev according to the Hebrew calendar, which may occur at any time from late November to late December in the Gregorian calendar. The festival is observed by lighting the candles of a candelabrum with nine branches, commonly called a menorah or hanukkiah. One branch is typically placed above or below the others and its candle is used to light the other eight candles. This unique candle is called the shammash (שַׁמָּשׁ, \"attendant\"). Each night, one additional candle is lit by the shammash until all eight candles are lit together on the final night of the festival.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Other Hanukkah festivities include singing Hanukkah songs, playing the game of dreidel and eating oil-based foods, such as latkes and sufganiyot, and dairy foods. Since the 1970s, the worldwide Chabad Hasidic movement has initiated public menorah lightings in open public places in many countries.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Originally instituted as a feast \"in the manner of Sukkot (Booths)\", it does not come with the corresponding obligations, and is therefore a relatively minor holiday in strictly religious terms. Nevertheless, Hanukkah has attained major cultural significance in North America and elsewhere, especially among secular Jews, due to often occurring around the same time as Christmas during the festive season.",
"title": ""
},
{
"paragraph_id": 4,
"text": "The name \"Hanukkah\" derives from the Hebrew verb \"חנך\", meaning \"to dedicate\". On Hanukkah, the Maccabean Jews regained control of Jerusalem and rededicated the Temple.",
"title": "Etymology"
},
{
"paragraph_id": 5,
"text": "Many homiletical explanations have been given for the name:",
"title": "Etymology"
},
{
"paragraph_id": 6,
"text": "In Hebrew, the word Hanukkah is written חֲנֻכָּה or חֲנוּכָּה (Ḥănukā). It is most commonly transliterated to English as Hanukkah or Chanukah. The spelling Hanukkah, which is based on using characters of the English alphabet as symbols to re-create the word's correct spelling in Hebrew, is the most common and the preferred choice of Merriam–Webster, Collins English Dictionary, the Oxford Style Manual, and the style guides of The New York Times and The Guardian. The sound represented by Ch ([χ], similar to the Scottish pronunciation of loch) is not native to the English language, although it is native to the Welsh language. Furthermore, the letter ḥeth (ח), which is the first letter in the Hebrew spelling, is pronounced differently in modern Hebrew (voiceless uvular fricative) from in classical Hebrew (voiceless pharyngeal fricative [ħ]), and neither of those sounds is unambiguously representable in English spelling. However, its original sound is closer to the English H than to the Scottish Ch, and Hanukkah more accurately represents the spelling in the Hebrew alphabet. Moreover, the 'kaf' consonant is geminate in classical (but not modern) Hebrew. Adapting the classical Hebrew pronunciation with the geminate and pharyngeal Ḥeth can lead to the spelling Hanukkah, while adapting the modern Hebrew pronunciation with no gemination and uvular Ḥeth leads to the spelling Chanukah.",
"title": "Etymology"
},
{
"paragraph_id": 7,
"text": "In Modern Hebrew, Hanukkah may also be called the Festival of Lights (חַג הַאוּרִים, Ḥag HaUrim), based on a comment by Josephus in Antiquities of the Jews, καὶ ἐξ ἐκείνου μέχρι τοῦ δεῦρο τὴν ἑορτὴν ἄγομεν καλοῦντες αὐτὴν φῶτα \"And from then on we celebrate this festival, and we call it Lights\". The first Hebrew translation of Antiquities (1864) used (חַג הַמְּאֹרוֹת) \"Festival of Lamps\", but the translation \"Festival of Lights\" (חַג הַאוּרִים) appeared by the end of the nineteenth century.",
"title": "Etymology"
},
{
"paragraph_id": 8,
"text": "The story of Hanukkah is told in the books of the First and Second Maccabees, which describe in detail the rededication of the Temple in Jerusalem and the lighting of the menorah. These books, however, are not a part of the canonized Masoretic Text version of the Tanakh (Hebrew and Aramaic language Jewish Bible) used and accepted by normative Rabbinical Judaism and therefore modern Jews (as copied, edited and distributed by a group of Jews known as the Masoretes between the 7th and 10th centuries of the Common Era). However, the books of Maccabees were included among the deuterocanonical books added to the Septuagint, a Jewish scholarly Greek-language translation of the Hebrew Bible originally compiled in the mid-3rd century BCE. The Roman Catholic and Orthodox Churches consider the books of Maccabees as a canonical part of the Old Testament.",
"title": "Historical sources"
},
{
"paragraph_id": 9,
"text": "The eight-day rededication of the temple is described in 1 Maccabees, though the miracle of the oil does not appear here. A story similar in character, and older in date, is the one alluded to in 2 Maccabees according to which the relighting of the altar fire by Nehemiah was due to a miracle which occurred on the 25th of Kislev, and which appears to be given as the reason for the selection of the same date for the rededication of the altar by Judah Maccabee. The above account in 1 Maccabees, as well as 2 Maccabees portrays the feast as a delayed observation of the eight-day Feast of Booths (Sukkot); similarly 2 Maccabees explains the length of the feast as \"in the manner of the Feast of Booths\".",
"title": "Historical sources"
},
{
"paragraph_id": 10,
"text": "Megillat Taanit (1st century) contains a list of festive days on which fasting or eulogizing is forbidden. It specifies, \"On the 25th of [Kislev] is Hanukkah of eight days, and one is not to eulogize\" and then references the story of the rededication of the Temple.",
"title": "Historical sources"
},
{
"paragraph_id": 11,
"text": "The Mishna (late 2nd century) mentions Hanukkah in several places, but never describes its laws in detail and never mentions any aspect of the history behind it. To explain the Mishna's lack of a systematic discussion of Hanukkah, Nissim ben Jacob postulated that information on the holiday was so commonplace that the Mishna felt no need to explain it. Modern scholar Reuvein Margolies suggests that as the Mishnah was redacted after the Bar Kochba revolt, its editors were reluctant to include explicit discussion of a holiday celebrating another relatively recent revolt against a foreign ruler, for fear of antagonizing the Romans.",
"title": "Historical sources"
},
{
"paragraph_id": 12,
"text": "The miracle of the one-day supply of oil miraculously lasting eight days is described in the Talmud, committed to writing about 600 years after the events described in the books of Maccabees. The Talmud says that after the forces of Antiochus IV had been driven from the Temple, the Maccabees discovered that almost all of the ritual olive oil had been profaned. They found only a single container that was still sealed by the High Priest, with enough oil to keep the menorah in the Temple lit for a single day. They used this, yet it burned for eight days (the time it took to have new oil pressed and made ready).",
"title": "Historical sources"
},
{
"paragraph_id": 13,
"text": "The Talmud presents three options:",
"title": "Historical sources"
},
{
"paragraph_id": 14,
"text": "Except in times of danger, the lights were to be placed outside one's door, on the opposite side of the mezuza, or in the window closest to the street. Rashi, in a note to Shabbat 21b, says their purpose is to publicize the miracle. The blessings for Hanukkah lights are discussed in tractate Succah, p. 46a.",
"title": "Historical sources"
},
{
"paragraph_id": 15,
"text": "Megillat Antiochus (probably composed in the 2nd century) concludes with the following words:",
"title": "Historical sources"
},
{
"paragraph_id": 16,
"text": "...After this, the sons of Israel went up to the Temple and rebuilt its gates and purified the Temple from the dead bodies and from the defilement. And they sought after pure olive oil to light the lamps therewith, but could not find any, except one bowl that was sealed with the signet ring of the High Priest from the days of Samuel the prophet and they knew that it was pure. There was in it [enough oil] to light [the lamps therewith] for one day, but the God of heaven whose name dwells there put therein his blessing and they were able to light from it eight days. Therefore, the sons of Ḥashmonai made this covenant and took upon themselves a solemn vow, they and the sons of Israel, all of them, to publish amongst the sons of Israel, [to the end] that they might observe these eight days of joy and honour, as the days of the feasts written in [the book of] the Law; [even] to light in them so as to make known to those who come after them that their God wrought for them salvation from heaven. In them, it is not permitted to mourn, neither to decree a fast [on those days], and anyone who has a vow to perform, let him perform it.",
"title": "Historical sources"
},
{
"paragraph_id": 17,
"text": "The Al HaNissim prayer is recited on Hanukkah as an addition to the Amidah prayer, which was formalized in the late 1st century. Al HaNissim describes the history of the holiday as follows:",
"title": "Historical sources"
},
{
"paragraph_id": 18,
"text": "The Jewish historian Titus Flavius Josephus narrates in his book, Jewish Antiquities XII, how the victorious Judas Maccabeus ordered lavish yearly eight-day festivities after rededicating the Temple in Jerusalem that had been profaned by Antiochus IV Epiphanes. Josephus does not say the festival was called Hanukkah but rather the \"Festival of Lights\":",
"title": "Historical sources"
},
{
"paragraph_id": 19,
"text": "In the New Testament, John 10:22–23 says, \"Then came the Festival of Dedication at Jerusalem. It was winter, and Jesus was in the temple courts walking in Solomon's Colonnade\" (NIV). The Greek noun used appears in the neuter plural as \"the renewals\" or \"the consecrations\" (Greek: τὰ ἐγκαίνια; ta enkaínia). The same root appears in 2 Esdras 6:16 in the Septuagint to refer specifically to Hanukkah. This Greek word was chosen because the Hebrew word for 'consecration' or 'dedication' is Hanukkah (חנכה). The Aramaic New Testament uses the Aramaic word hawdata (a close synonym), which literally means 'renewal' or 'to make new'.",
"title": "Historical sources"
},
{
"paragraph_id": 20,
"text": "After the death of Alexander the Great in 323 BCE, Judea became part of the Ptolemaic Kingdom of Egypt until 200 BCE, when King Antiochus III the Great of Syria defeated King Ptolemy V Epiphanes of Egypt at the Battle of Panium. Judea then became part of the Seleucid Empire of Syria. King Antiochus III the Great, wanting to conciliate his new Jewish subjects, guaranteed their right to \"live according to their ancestral customs\" and to continue to practice their religion in the Temple of Jerusalem. The Seleucids, like the Ptolemies before them, held a suzerainty over Judea, where they respected Jewish culture and protected Jewish institutions. This policy was drastically reversed by Antiochus IV Epiphanes, the son of Antiochus III, seemingly after what was either a dispute over leadership of the Temple in Jerusalem and the office of High Priest, or possibly a revolt whose nature was lost to time after being crushed. In 175 BCE, Antiochus IV invaded Judea at the request of the sons of Tobias. The Tobiads, who led the Hellenizing Jewish faction in Jerusalem, were expelled to Syria around 170 BCE when the high priest Onias and his pro-Egyptian faction wrested control from them. The exiled Tobiads lobbied Antiochus IV Epiphanes to recapture Jerusalem. As Flavius Josephus relates:",
"title": "History"
},
{
"paragraph_id": 21,
"text": "The king being thereto disposed beforehand, complied with them, and came upon the Jews with a great army, and took their city by force, and slew a great multitude of those that favored Ptolemy, and sent out his soldiers to plunder them without mercy. He also spoiled the temple, and put a stop to the constant practice of offering a daily sacrifice of expiation for three years and six months.",
"title": "History"
},
{
"paragraph_id": 22,
"text": "When the Second Temple in Jerusalem was looted and services stopped, Judaism was outlawed. In 167 BCE, Antiochus ordered an altar to Zeus erected in the Temple. He banned brit milah (circumcision) and ordered pigs to be sacrificed at the altar of the temple.",
"title": "History"
},
{
"paragraph_id": 23,
"text": "Antiochus's actions provoked a large-scale revolt. Mattathias (Mattityahu), a Jewish priest, and his five sons Jochanan, Simeon, Eleazar, Jonathan, and Judah led a rebellion against Antiochus. It started with Mattathias killing first a Jew who wanted to comply with Antiochus's order to sacrifice to Zeus, and then a Greek official who was to enforce the government's behest (1 Mac. 2, 24–25). Judah became known as Yehuda HaMakabi (\"Judah the Hammer\"). By 166 BCE, Mattathias had died, and Judah took his place as leader. By 164 BCE, the Jewish revolt against the Seleucid monarchy was successful. The Temple was liberated and rededicated. The festival of Hanukkah was instituted to celebrate this event. Judah ordered the Temple to be cleansed, a new altar to be built in place of the polluted one and new holy vessels to be made. According to the Talmud,",
"title": "History"
},
{
"paragraph_id": 24,
"text": "\"For when the Greeks entered the Sanctuary, they defiled all the oils therein, and when the Hasmonean dynasty prevailed against and defeated them, they made search and found only one cruse of oil which lay with the seal of the kohen gadol (high priest), but which contained sufficient [oil] for one day's lighting only; yet a miracle was wrought therein, and they lit [the lamp] therewith for eight days. The following year these [days] were appointed a Festival with [the recital of] Hallel and thanksgiving.\"",
"title": "History"
},
{
"paragraph_id": 25,
"text": "—Shabbat 21b",
"title": "History"
},
{
"paragraph_id": 26,
"text": "Tertiary sources in the Jewish tradition make reference to this account.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "Maimonides (12th century) described Hanukkah as follows:",
"title": "History"
},
{
"paragraph_id": 28,
"text": "When, on the twenty-fifth of Kislev, the Jews had emerged victorious over their foes and destroyed them, they re-entered the Temple where they found only one jar of pure oil, enough to be lit for only a single day; yet they used it for lighting the required set of lamps for eight days, until they managed to press olives and produce pure oil. Because of this, the sages of that generation ruled that the eight days beginning with the twenty-fifth of Kislev should be observed as days of rejoicing and praising the Lord. Lamps are lit in the evening over the doors of the homes, on each of the eight nights, so as to display the miracle. These days are called Hanukkah, when it is forbidden to lament or to fast, just as it is on the days of Purim. Lighting the lamps during the eight days of Hanukkah is a religious duty imposed by the sages.",
"title": "History"
},
{
"paragraph_id": 29,
"text": "Some modern scholars, following the account in 2 Maccabees, observe that the king was intervening in an internal civil war between the Maccabean Jews and the Hellenized Jews in Jerusalem. These competed violently over who would be the High Priest, with traditionalists with Hebrew/Aramaic names like Onias contesting with Hellenizing High Priests with Greek names like Jason and Menelaus. In particular, Jason's Hellenistic reforms would prove to be a decisive factor leading to eventual conflict within the ranks of Judaism. Other authors point to possible socioeconomic reasons in addition to the religious reasons behind the civil war.",
"title": "History"
},
{
"paragraph_id": 30,
"text": "What began in many respects as a civil war escalated when the Hellenistic kingdom of Syria sided with the Hellenizing Jews in their conflict with the traditionalists. As the conflict escalated, Antiochus took the side of the Hellenizers by prohibiting the religious practices the traditionalists had rallied around. This may explain why the king, in a total departure from Seleucid practice in all other places and times, banned a traditional religion.",
"title": "History"
},
{
"paragraph_id": 31,
"text": "The miracle of the oil is widely regarded as a legend and its authenticity has been questioned since the Middle Ages. However, given the famous question Joseph Karo (1488-1575) posed concerning why Hanukkah is celebrated for eight days when the miracle was only for seven days (since there was enough oil for one day), it was clear that writing in the 16th century CE, he believed it to be a historical event. This belief has been adopted by most of Orthodox Judaism, in as much as Karo's Shulchan Aruch is a main code of Jewish Law. The menorah first began to be used as a symbol of Judaism in the Hasmonean period – appearing on coins issued by Hasmonean king Mattathias Antigonus between 40 and 37 BCE, but these coins depict a seven-branched Temple menorah, not a nine-branched vessel that would correspond to an eight-day oil miracle.",
"title": "History"
},
{
"paragraph_id": 32,
"text": "Selected battles between the Maccabees and the Seleucid Syrian-Greeks:",
"title": "History"
},
{
"paragraph_id": 33,
"text": "Hanukkah is celebrated with a series of rituals that are performed every day throughout the eight-day holiday, some are family-based and others communal. There are special additions to the daily prayer service, and a section is added to the blessing after meals.",
"title": "Rituals"
},
{
"paragraph_id": 34,
"text": "Hanukkah is not a \"Sabbath-like\" holiday, and there is no obligation to refrain from activities that are forbidden on the Sabbath, as specified in the Shulkhan Arukh. Adherents go to work as usual but may leave early in order to be home to kindle the lights at nightfall. There is no religious reason for schools to be closed, although in Israel schools close from the second day for the whole week of Hanukkah. Many families exchange gifts each night, such as books or games, and \"Hanukkah Gelt\" is often given to children. Fried foods—such as latkes (potato pancakes), jelly doughnuts (sufganiyot) and Sephardic bimuelos—are eaten to commemorate the importance of oil during the celebration of Hanukkah. Some also have a custom of eating dairy products to remember Judith and how she overcame Holofernes by feeding him cheese, which made him thirsty, and giving him wine to drink. When Holofernes became very drunk, Judith cut off his head.",
"title": "Rituals"
},
{
"paragraph_id": 35,
"text": "Each night throughout the eight-day holiday, a candle or oil-based light is lit. As a universally practiced \"beautification\" (hiddur mitzvah) of the mitzvah, the number of lights lit is increased by one each night. An extra light called a shammash, meaning \"attendant\" or \"sexton,\" is also lit each night, and is given a distinct location, usually higher, lower, or to the side of the others.",
"title": "Rituals"
},
{
"paragraph_id": 36,
"text": "Among Ashkenazim the tendency is for every male member of the household (and in many families, girls as well) to light a full set of lights each night, while among Sephardim the prevalent custom is to have one set of lights for the entire household.",
"title": "Rituals"
},
{
"paragraph_id": 37,
"text": "The purpose of the shammash is to adhere to the prohibition, specified in the Talmud, against using the Hanukkah lights for anything other than publicizing and meditating on the Hanukkah miracle. This differs from Sabbath candles which are meant to be used for illumination and lighting. Hence, if one were to need extra illumination on Hanukkah, the shammash candle would be available, and one would avoid using the prohibited lights. Some, especially Ashkenazim, light the shammash candle first and then use it to light the others. So altogether, including the shammash, two lights are lit on the first night, three on the second and so on, ending with nine on the last night, for a total of 44 (36, excluding the shammash). It is Sephardic custom not to light the shammash first and use it to light the rest. Instead, the shammash candle is the last to be lit, and a different candle or a match is used to light all the candles. Some Hasidic Jews follow this Sephardic custom as well.",
"title": "Rituals"
},
{
"paragraph_id": 38,
"text": "The lights can be candles or oil lamps. Electric lights are sometimes used and are acceptable in places where open flame is not permitted, such as a hospital room, or for the very elderly and infirm; however, those who permit reciting a blessing over electric lamps only allow it if it is incandescent and battery operated (an incandescent flashlight would be acceptable for this purpose), while a blessing may not be recited over a plug-in menorah or lamp. Most Jewish homes have a special candelabrum referred to as either a Chanukiah (the modern Israeli term) or a menorah (the traditional name, simply Hebrew for 'lamp'). Many families use an oil lamp (traditionally filled with olive oil) for Hanukkah. Like the candle Chanukiah, it has eight wicks to light plus the additional shammash light.",
"title": "Rituals"
},
{
"paragraph_id": 39,
"text": "In the United States, Hanukkah became a more visible festival in the public sphere from the 1970s when Rabbi Menachem M. Schneerson called for public awareness and observance of the festival and encouraged the lighting of public menorahs.",
"title": "Rituals"
},
{
"paragraph_id": 40,
"text": "The reason for the Hanukkah lights is not for the \"lighting of the house within\", but rather for the \"illumination of the house without,\" so that passersby should see it and be reminded of the holiday's miracle (i.e. that the sole cruse of pure oil found which held enough oil to burn for one night actually burned for eight nights). Accordingly, lamps are set up at a prominent window or near the door leading to the street. It is customary amongst some Ashkenazi Jews to have a separate menorah for each family member (customs vary), whereas most Sephardi Jews light one for the whole household. Only when there was danger of antisemitic persecution were lamps supposed to be hidden from public view, as was the case in Persia under the rule of the Zoroastrians, or in parts of Europe before and during World War II. However, most Hasidic groups light lamps near an inside doorway, not necessarily in public view. According to this tradition, the lamps are placed on the opposite side from the mezuzah, so people passing through the door are surrounded by the holiness of mitzvot (the commandments).",
"title": "Rituals"
},
{
"paragraph_id": 41,
"text": "Generally, women are exempt in Jewish law from time-bound positive commandments, although the Talmud requires that women engage in the mitzvah of lighting Hanukkah candles \"for they too were involved in the miracle.\"",
"title": "Rituals"
},
{
"paragraph_id": 42,
"text": "Some Jews in North America and Israel have taken up environmental concerns in relation to Hanukkah's \"miracle of the oil\", emphasizing reflection on energy conservation and energy independence. An example of this is the Coalition on the Environment and Jewish Life's renewable energy campaign.",
"title": "Rituals"
},
{
"paragraph_id": 43,
"text": "Hanukkah lights should usually burn for at least half an hour after it gets dark. Many light at sundown and those who do so should be careful to have enough oil or wax to last until half an hour after dark. Most Hasidim and many other communities light later, generally around nightfall. Many Hasidic Rebbes light much later to fulfill the obligation of publicizing the miracle by the presence of their Hasidim when they kindle the lights.",
"title": "Rituals"
},
{
"paragraph_id": 44,
"text": "Inexpensive small wax candles sold for Hanukkah burn for approximately half an hour so should be lit no earlier than nightfall. Friday night presents a problem, however. Since candles may not be lit on Shabbat itself, the candles must be lit before sunset. However, they must remain lit through the lighting of the Shabbat candles. Therefore, the Hanukkah menorah is lit first with larger candles than usual, followed by the Shabbat candles. At the end of the Shabbat, there are those who light the Hanukkah lights before Havdalah and those who make Havdalah before the lighting Hanukkah lights.",
"title": "Rituals"
},
{
"paragraph_id": 45,
"text": "If for whatever reason one didn't light at sunset or nightfall, the lights should be kindled later, as long as there are people in the streets. Later than that, the lights should still be kindled, but the blessings should be recited only if there is at least somebody else awake in the house and present at the lighting of the Hannukah lights.",
"title": "Rituals"
},
{
"paragraph_id": 46,
"text": "Typically two blessings (brachot; singular: brachah) are recited during this eight-day festival when lighting the candles. On the first night only, the shehecheyanu blessing is added, making a total of three blessings.",
"title": "Rituals"
},
{
"paragraph_id": 47,
"text": "The first blessing is recited before the candles are lit, and while most recite the other blessing(s) beforehand as well, some have the custom to recite them after. On the first night of Hanukkah one light (candle or oil) is lit on the right side of the menorah, on the following night a second light is placed to the left of the first but it is lit first, and so on, proceeding from placing candles right to left but lighting them from left to right over the eight nights.",
"title": "Rituals"
},
{
"paragraph_id": 48,
"text": "Transliteration: Barukh ata Adonai Eloheinu, melekh ha'olam, asher kid'shanu b'mitzvotav v'tzivanu l'hadlik ner Hanukkah.",
"title": "Rituals"
},
{
"paragraph_id": 49,
"text": "Translation: \"Blessed are You, LORD our God, King of the universe, Who has sanctified us with His commandments and commanded us to kindle the Hanukkah light[s].\"",
"title": "Rituals"
},
{
"paragraph_id": 50,
"text": "Transliteration: Barukh ata Adonai Eloheinu, melekh ha'olam, she'asa nisim la'avoteinu ba'yamim ha'heim ba'z'man ha'ze.",
"title": "Rituals"
},
{
"paragraph_id": 51,
"text": "Translation: \"Blessed are You, LORD our God, King of the universe, Who performed miracles for our ancestors in those days at this time...\"",
"title": "Rituals"
},
{
"paragraph_id": 52,
"text": "After the lights are kindled the hymn Hanerot Halalu is recited. There are several different versions; the version presented here is recited in many Ashkenazic communities:",
"title": "Rituals"
},
{
"paragraph_id": 53,
"text": "In the Ashkenazi tradition, each night after the lighting of the candles, the hymn Ma'oz Tzur is sung. The song contains six stanzas. The first and last deal with general themes of divine salvation, and the middle four deal with events of persecution in Jewish history, praising God for survival despite these tragedies (the exodus from Egypt, the Babylonian captivity, the miracle of the holiday of Purim, the Hasmonean victory) and expressing a longing for the days when Judea will finally triumph over Rome.",
"title": "Rituals"
},
{
"paragraph_id": 54,
"text": "The song was composed in the thirteenth century by a poet only known through the acrostic found in the first letters of the original five stanzas of the song: Mordechai. The familiar tune is most probably a derivation of a German Protestant church hymn or a popular folk song.",
"title": "Rituals"
},
{
"paragraph_id": 55,
"text": "After lighting the candles and Ma'oz Tzur, singing other Hanukkah songs is customary in many Jewish homes. Some Hasidic and Sephardi Jews recite Psalms, such as Psalm 30, Psalm 67, and Psalm 91. In North America and in Israel it is common to exchange presents or give children presents at this time. In addition, many families encourage their children to give tzedakah (charity) in lieu of presents for themselves.",
"title": "Rituals"
},
{
"paragraph_id": 56,
"text": "\"We thank You also for the miraculous deeds and for the redemption and for the mighty deeds and the saving acts wrought by You, as well as for the wars which You waged for our ancestors in ancient days at this season. In the days of the Hasmonean Mattathias, son of Johanan the high priest, and his sons, when the iniquitous Greco-Syrian kingdom rose up against Your people Israel, to make them forget Your Torah and to turn them away from the ordinances of Your will, then You in your abundant mercy rose up for them in the time of their trouble, pled their cause, executed judgment, avenged their wrong, and delivered the strong into the hands of the weak, the many into the hands of few, the impure into the hands of the pure, the wicked into the hands of the righteous, and insolent ones into the hands of those occupied with Your Torah. Both unto Yourself did you make a great and holy name in Thy world, and unto Your people did You achieve a great deliverance and redemption. Whereupon your children entered the sanctuary of Your house, cleansed Your temple, purified Your sanctuary, kindled lights in Your holy courts, and appointed these eight days of Hanukkah in order to give thanks and praises unto Your holy name.\"",
"title": "Rituals"
},
{
"paragraph_id": 57,
"text": "Translation of Al ha-Nissim",
"title": "Rituals"
},
{
"paragraph_id": 58,
"text": "An addition is made to the \"hoda'ah\" (thanksgiving) benediction in the Amidah (thrice-daily prayers), called Al HaNissim (\"On/about the Miracles\"). This addition refers to the victory achieved over the Syrians by the Hasmonean Mattathias and his sons.",
"title": "Rituals"
},
{
"paragraph_id": 59,
"text": "The same prayer is added to the grace after meals. In addition, the Hallel (praise) Psalms are sung during each morning service and the Tachanun penitential prayers are omitted.",
"title": "Rituals"
},
{
"paragraph_id": 60,
"text": "The Torah is read every day in the shacharit morning services in synagogue, on the first day beginning from Numbers 6:22 (according to some customs, Numbers 7:1), and the last day ending with Numbers 8:4. Since Hanukkah lasts eight days it includes at least one, and sometimes two, Jewish Sabbaths (Saturdays). The weekly Torah portion for the first Sabbath is almost always Miketz, telling of Joseph's dream and his enslavement in Egypt. The Haftarah reading for the first Sabbath Hanukkah is Zechariah 2:14 – Zechariah 4:7. When there is a second Sabbath on Hanukkah, the Haftarah reading is from 1 Kings 7:40–50.",
"title": "Rituals"
},
{
"paragraph_id": 61,
"text": "The Hanukkah menorah is also kindled daily in the synagogue, at night with the blessings and in the morning without the blessings.",
"title": "Rituals"
},
{
"paragraph_id": 62,
"text": "The menorah is not lit during Shabbat, but rather prior to the beginning of Shabbat as described above and not at all during the day. During the Middle Ages \"Megillat Antiochus\" was read in the Italian synagogues on Hanukkah just as the Book of Esther is read on Purim. It still forms part of the liturgy of the Yemenite Jews.",
"title": "Rituals"
},
{
"paragraph_id": 63,
"text": "The last day of Hanukkah is known by some as Zot Hanukkah and by others as Chanukat HaMizbeach, from the verse read on this day in the synagogue Numbers 7:84, Zot Hanukkat Hamizbe'ach: \"This was the dedication of the altar\". According to the teachings of Kabbalah and Hasidism, this day is the final \"seal\" of the High Holiday season of Yom Kippur and is considered a time to repent out of love for God. In this spirit, many Hasidic Jews wish each other Gmar chatimah tovah (\"may you be sealed totally for good\"), a traditional greeting for the Yom Kippur season. It is taught in Hasidic and Kabbalistic literature that this day is particularly auspicious for the fulfillment of prayers.",
"title": "Rituals"
},
{
"paragraph_id": 64,
"text": "It is customary for women not to work for at least the first half-hour of the candles' burning, and some have the custom not to work for the entire time of burning. It is also forbidden to fast or to eulogize during Hanukkah.",
"title": "Rituals"
},
{
"paragraph_id": 65,
"text": "Some Hasidic scholars teach that the Hanukkah is in fact the final conclusion of God's judgment extending High Holy Days of Rosh Hashana when humanity is judged and Yom Kippur when the judgment is sealed:",
"title": "Rituals"
},
{
"paragraph_id": 66,
"text": "Hanukkah songs (in Hebrew except where indicated) include \"Ma'oz Tzur\" (Rock of Ages), \"Latke'le Latke'le\" (Yiddish: \"Little Latke, Little Latke\"), \"Hanukkiah Li Yesh\" (\"I Have a Hanukkah Menorah\"), \"Ocho Kandelikas\" (Judeo-Spanish: \"Eight Little Candles\"), \"Kad Katan\" (\"A Small Jug\"), \"S'vivon Sov Sov Sov\" (\"Dreidel, Spin and Spin\"), \"Haneirot Halolu\" (\"These Candles Which We Light\"), \"Mi Yimalel\" (\"Who Can Retell\") and \"Ner Li, Ner Li\" (\"I have a Candle\").",
"title": "Customs"
},
{
"paragraph_id": 67,
"text": "Among the best known songs in English-speaking countries are \"Dreidel, Dreidel, Dreidel\" and \"Oh Chanukah\".",
"title": "Customs"
},
{
"paragraph_id": 68,
"text": "In the Nadvorna Hasidic dynasty, it is customary for the rebbes to play violin after the menorah is lit.",
"title": "Customs"
},
{
"paragraph_id": 69,
"text": "Penina Moise's Hannukah Hymn published in the 1842 Hymns Written for the Use of Hebrew Congregations was instrumental in the beginning of Americanization of Hanukkah.",
"title": "Customs"
},
{
"paragraph_id": 70,
"text": "There is a custom of eating foods fried or baked in oil (preferably olive oil) to commemorate the miracle of a small flask of oil keeping the Second Temple's Menorah alight for eight days. Traditional foods include potato pancakes, known as latkes in Yiddish, especially among Ashkenazi families. Sephardi, Polish, and Israeli families eat jam-filled doughnuts (Yiddish: פּאָנטשקעס pontshkes), bimuelos (fritters) and sufganiyot which are deep-fried in oil. Italkim and Hungarian Jews traditionally eat cheese pancakes known as \"cassola\" or \"cheese latkes\".",
"title": "Customs"
},
{
"paragraph_id": 71,
"text": "Latkes are not popular in Israel, having been largely replaced by sufganiyot due to local economic factors, convenience and the influence of trade unions. Bakeries in Israel have popularized many new types of fillings for sufganiyot besides the traditional strawberry jelly filling, including chocolate cream, vanilla cream, caramel, cappuccino and others. In recent years, downsized, \"mini\" sufganiyot containing half the calories of the regular, 400-to-600-calorie version, have become popular.",
"title": "Customs"
},
{
"paragraph_id": 72,
"text": "Rabbinic literature also records a tradition of eating cheese and other dairy products during Hanukkah. This custom, as mentioned above, commemorates the heroism of Judith during the Babylonian captivity of the Jews and reminds us that women also played an important role in the events of Hanukkah. The deuterocanonical book of Judith (Yehudit or Yehudis in Hebrew), which is not part of the Tanakh, records that Holofernes, an Assyrian general, had surrounded the village of Bethulia as part of his campaign to conquer Judea. After intense fighting, the water supply of the Jews was cut off and the situation became desperate. Judith, a pious widow, told the city leaders that she had a plan to save the city. Judith went to the Assyrian camps and pretended to surrender. She met Holofernes, who was smitten by her beauty. She went back to his tent with him, where she plied him with cheese and wine. When he fell into a drunken sleep, Judith beheaded him and escaped from the camp, taking the severed head with her (the beheading of Holofernes by Judith has historically been a popular theme in art). When Holofernes' soldiers found his corpse, they were overcome with fear; the Jews, on the other hand, were emboldened and launched a successful counterattack. The town was saved, and the Assyrians defeated.",
"title": "Customs"
},
{
"paragraph_id": 73,
"text": "Roast goose has historically been a traditional Hanukkah food among Eastern European and American Jews, although the custom has declined in recent decades.",
"title": "Customs"
},
{
"paragraph_id": 74,
"text": "Indian Jews traditionally consume gulab jamun, fried dough balls soaked in a sweet syrup, similar to teiglach or bimuelos, as part of their Hanukkah celebrations. Italian Jews eat fried chicken, cassola (a ricotta cheese latke almost similar to a cheesecake), and fritelle de riso par Hanukkah (a fried sweet rice pancake). Romanian Jews eat pasta latkes as a traditional Hanukkah dish, and Syrian Jews consume Kibbet Yatkeen, a dish made with pumpkin and bulgur wheat similar to latkes, as well as their own version of keftes de prasa spiced with allspice and cinnamon.",
"title": "Customs"
},
{
"paragraph_id": 75,
"text": "After lighting the candles, it is customary to play (or spin) the dreidel. The dreidel, or sevivon in Hebrew, is a four-sided spinning top that children play with during Hanukkah. Each side is imprinted with a Hebrew letter which is an abbreviation for the Hebrew words נס גדול היה שם (Nes Gadol Haya Sham, \"A great miracle happened there\"), referring to the miracle of the oil that took place in the Beit Hamikdash. The fourth side of some dreidels sold in Israel are inscribed with the letter פ (Pe), rendering the acronym נס גדול היה פה (Nes Gadol Haya Po, \"A great miracle happened here\"), referring to the fact that the miracle occurred in the land of Israel, although this is a relatively recent innovation. Stores in Haredi neighborhoods sell the traditional Shin dreidels as well, because they understand \"there\" to refer to the Temple and not the entire Land of Israel, and because the Hasidic Masters ascribe significance to the traditional letters.",
"title": "Customs"
},
{
"paragraph_id": 76,
"text": "Chanukkah gelt (Yiddish for \"Chanukkah money\"), known in Israel by the Hebrew translation Hebrew: דְּמֵי חֲנֻכָּה, romanized: dmei Hanukkah, is often distributed to children during the festival of Hanukkah. The giving of Hanukkah gelt also adds to the holiday excitement. The amount is usually in small coins, although grandparents or relatives may give larger sums. The tradition of giving Chanukah gelt dates back to a long-standing East European custom of children presenting their teachers with a small sum of money at this time of year as a token of gratitude. One minhag favors the fifth night of Hanukkah for giving Hanukkah gelt. Unlike the other nights of Hanukkah, the fifth does not ever fall on the Shabbat, hence never conflicting with the Halachic injunction against handling money on the Shabbat.",
"title": "Customs"
},
{
"paragraph_id": 77,
"text": "The earliest Hanukkah link with the White House occurred in 1951 when Israeli Prime Minister David Ben-Gurion presented United States President Harry Truman with a Hanukkah menorah. In 1979 President Jimmy Carter took part in the first public Hanukkah candle-lighting ceremony of the National Menorah held across the White House lawn. In 1989, President George H. W. Bush displayed a menorah in the White House. In 1993, President Bill Clinton invited a group of schoolchildren to the Oval Office for a small ceremony.",
"title": "Customs"
},
{
"paragraph_id": 78,
"text": "The United States Postal Service has released several Hanukkah-themed postage stamps. In 1996, the United States Postal Service (USPS) issued a 32 cent Hanukkah stamp as a joint issue with Israel. In 2004, after eight years of reissuing the menorah design, the USPS issued a dreidel design for the Hanukkah stamp. The dreidel design was used through 2008. In 2009 a Hanukkah stamp was issued with a design featured a photograph of a menorah with nine lit candles. In 2008, President George W. Bush held an official Hanukkah reception in the White House where he linked the occasion to the 1951 gift by using that menorah for the ceremony, with a grandson of Ben-Gurion and a grandson of Truman lighting the candles.",
"title": "Customs"
},
{
"paragraph_id": 79,
"text": "In December 2014, two Hanukkah celebrations were held at the White House. The White House commissioned a menorah made by students at the Max Rayne school in Israel and invited two of its students to join U.S. President Barack Obama and First Lady Michelle Obama as they welcomed over 500 guests to the celebration. The students' school in Israel had been subjected to arson by extremists. President Obama said these \"students teach us an important lesson for this time in our history. The light of hope must outlast the fires of hate. That's what the Hanukkah story teaches us. It's what our young people can teach us – that one act of faith can make a miracle, that love is stronger than hate, that peace can triumph over conflict.\" Rabbi Angela Warnick Buchdahl, in leading prayers at the ceremony commented on the how special the scene was, asking the President if he believed America's founding fathers could possibly have pictured that a female Asian-American rabbi would one day be at the White House leading Jewish prayers in front of the African-American president.",
"title": "Customs"
},
{
"paragraph_id": 80,
"text": "The dates of Hanukkah are determined by the Hebrew calendar. Hanukkah begins at the 25th day of Kislev and concludes on the second or third day of Tevet (Kislev can have 29 or 30 days). The Jewish day begins at sunset. Hanukkah dates for recent and upcoming:",
"title": "Dates"
},
{
"paragraph_id": 81,
"text": "In 2013, on 28 November, the American holiday of Thanksgiving fell during Hanukkah for only the third time since Thanksgiving was declared a national holiday by President Abraham Lincoln. The last time was 1899, and due to the nature of the Gregorian and Jewish calendars being slightly out of sync with each other, it will not happen again in the foreseeable future. This rare convergence prompted the creation of the neologism Thanksgivukkah.",
"title": "Dates"
},
{
"paragraph_id": 82,
"text": "Major Jewish holidays are those when all forms of work are forbidden, and that feature traditional holiday meals, kiddush, holiday candle-lighting, etc. Only biblical holidays fit these criteria, and Chanukah was instituted some two centuries after the Hebrew Bible was completed. Nevertheless, though Chanukah is of rabbinic origin, it is traditionally celebrated in a major and very public fashion. The requirement to position the menorah, or Chanukiah, at the door or window, symbolizes the desire to give the Chanukah miracle a high profile.",
"title": "Symbolic importance"
},
{
"paragraph_id": 83,
"text": "Some Jewish historians suggest a different explanation for the rabbinic reluctance to laud the militarism. First, the rabbis wrote after Hasmonean leaders had led Judea into Rome's grip and so may not have wanted to offer the family much praise. Second, they clearly wanted to promote a sense of dependence on God, urging Jews to look toward the divine for protection. They likely feared inciting Jews to another revolt that might end in disaster, as the Bar Kochba revolt did.",
"title": "Symbolic importance"
},
{
"paragraph_id": 84,
"text": "\"Hanukkah is an ancient holiday, but a modest one. The holiday of the Hasmoneans is new, yet it is full of spiritual exaltation and national joy. What was Hanukkah forty years ago? 'Al ha-nissim' and Hallel; a short reading in the synagogue; lighting the tiny, slender wax candles or oil lights; at home, levivot [latkes-potato pancakes], cards for the older children, and sevivonim [dreidels-spinning tops] for the little ones. But what is Hanukkah today? The holiday of the Hasmoneans. A holiday of salvation. A great national holiday, celebrated in all the countries of the Diaspora with dances and speeches, melody and song, outings and parades, as if a new soul has been breathed into the ancient holiday, another spirit renewed within it. One thing is clear: if those tiny, modest candles had been extinguished in Diaspora times, if our grandparents had not preserved the traditions of Hanukkah in the synagogue and at home . .., the holiday of the Hasmoneans could never have been created. There would have been nothing to change, nothing to renew. The new soul of our times would not have found a body in which to envelop itself.”",
"title": "Modern history"
},
{
"paragraph_id": 85,
"text": "Joseph Klausner, 1938, in Haim Harari's Sefer Hanukkah",
"title": "Modern history"
},
{
"paragraph_id": 86,
"text": "The emergence of Jewish nationalism and the Zionist movement in the late 19th and early 20th centuries had a profound impact on the celebration and reinterpretation of Jewish holidays. These developments resulted in increased emphasis on certain Jewish celebrations, of which Hanukkah and Tu BiShvat are prominent examples.",
"title": "Modern history"
},
{
"paragraph_id": 87,
"text": "Traditionally, Hanukkah was a minor event, but took on a new meaning following the rise of Jewish nationalism as a nationalist holiday, symbolizing the struggle of the Jewish people against foreign oppression and their desire for national re-creation. Hanukkah served as a common ground where both religious and secular Zionists could unite around their nationalist agenda. Rabbi Shmuel Mohilever, an early religious Zionist, proposed making Hanukkah the official holiday of the proto-Zionist organization Hovevei Zion in Russia in 1881. Public celebrations of Hanukkah gained prominence in the early 20th century, with parades and public events becoming common. Schools in Mandate Palestine played an early role in promoting these celebrations.",
"title": "Modern history"
},
{
"paragraph_id": 88,
"text": "With the advent of Zionism and the state of Israel, the themes of militarism were reconsidered. In modern Israel, the national and military aspects of Hanukkah became, once again, more dominant.",
"title": "Modern history"
},
{
"paragraph_id": 89,
"text": "While Hanukkah is a relatively minor Jewish holiday, as indicated by the lack of religious restrictions on work other than a few minutes after lighting the candles, in North America, Hanukkah in the 21st century has taken a place equal to Passover as a symbol of Jewish identity. Both the Israeli and North American versions of Hanukkah emphasize resistance, focusing on some combination of national liberation and religious freedom as the defining meaning of the holiday.",
"title": "Modern history"
},
{
"paragraph_id": 90,
"text": "Diane Ashton attributed the increased visibility and reinvention of Hanukkah by some of the American Jewish community as a way to adapt to American life, re-inventing the festival in \"the language of individualism and personal conscience derived from both Protestantism and the Enlightenment\".",
"title": "Modern history"
},
{
"paragraph_id": 91,
"text": "In the Catholic Church, Christmastide has its own Octave, being eight days especially set aside to celebrate Christmas from December 25th to January 1st. This is seen as a Christian fulfillment of the original text's demand for Hanukkah to be eight days, \"And they kept the eight days with gladness, as in the feast of the tabernacles, remembering that not long afore they had held the feast of the tabernacles\" (2 Macc 10:6). Advent is considered as the season of darkness preceding the season of light, Christmas, so for this reason, Christmas can be said to be the \"New Hanukkah,\" or its fulfillment through the Nativity of Christ. This is similar to the Easter Octave being the solemn eight days of the Passover of Exodus.",
"title": "Modern history"
},
{
"paragraph_id": 92,
"text": "In North America, Hanukkah became increasingly important to many Jewish individuals and families during the latter part of the 20th century, including a large number of secular Jews, who wanted to celebrate a Jewish alternative to the Christmas celebrations which frequently overlap with Hanukkah. Diane Ashton argues that Jewish immigrants to America raised the profile of Hanukkah as a kid-centered alternative to Christmas as early as the 1800s. This in parts mirrors the ascendancy of Christmas, which like Hanukkah increased in importance in the 1800s. During this time period, Jewish leaders (especially Reform) such as Max Lilienthal and Isaac Mayer Wise made an effort to rebrand Hanukkah and started creating Hanukkah celebration for kids at their synagogues, which included candy and singing songs. By the 1900s, it started to become a commercial holiday like Christmas, with Hanukkah gifts and decorations appearing in stores and Jewish Women's magazines printing articles on holiday decorations, children's celebrations, and gift giving. Ashton says that Jewish families did this in order to maintain a Jewish identity which is distinct from mainline Christian culture, on the other hand, the mirroring of Hanukkah and Christmas made Jewish families and kids feel that they were American. Though it was traditional for Ashkenazi Jews to give \"gelt\" or money to children during Hanukkah, in many families, this tradition has been supplemented with the giving of other gifts so that Jewish children can enjoy receiving gifts just like their Christmas-celebrating peers do. Children play a big role in Hanukkah, and Jewish families with children are more likely to celebrate it than childless Jewish families, and sociologists hypothesize that this is because Jewish parents do not want their kids to be alienated from their non-Jewish peers who celebrate Christmas. Recent celebrations have also seen the presence of the Hanukkah bush, which is considered a Jewish counterpart to the Christmas tree. Today, the presence of Hanukkah bushes is generally discouraged by most rabbis, but some Reform, Reconstructionist and more liberal Conservative rabbis do not object, they also do not object to the presence of Christmas trees.",
"title": "Modern history"
},
{
"paragraph_id": 93,
"text": "In December 2022, New York City Mayor Eric Adams, Reverends Al Sharpton and Conrad Tillard, businessman Robert F. Smith, Rabbi Shmuley Boteach, and Elisha Wiesel joined to celebrate Hanukkah and Kwanzaa together, and combat racism and antisemitism, at Carnegie Hall.",
"title": "Modern history"
}
] | Hanukkah is a Jewish festival commemorating the recovery of Jerusalem and subsequent rededication of the Second Temple at the beginning of the Maccabean Revolt against the Seleucid Empire in the 2nd century BCE. Hanukkah is observed for eight nights and days, starting on the 25th day of Kislev according to the Hebrew calendar, which may occur at any time from late November to late December in the Gregorian calendar. The festival is observed by lighting the candles of a candelabrum with nine branches, commonly called a menorah or hanukkiah. One branch is typically placed above or below the others and its candle is used to light the other eight candles. This unique candle is called the shammash. Each night, one additional candle is lit by the shammash until all eight candles are lit together on the final night of the festival. Other Hanukkah festivities include singing Hanukkah songs, playing the game of dreidel and eating oil-based foods, such as latkes and sufganiyot, and dairy foods. Since the 1970s, the worldwide Chabad Hasidic movement has initiated public menorah lightings in open public places in many countries. Originally instituted as a feast "in the manner of Sukkot (Booths)", it does not come with the corresponding obligations, and is therefore a relatively minor holiday in strictly religious terms. Nevertheless, Hanukkah has attained major cultural significance in North America and elsewhere, especially among secular Jews, due to often occurring around the same time as Christmas during the festive season. | 2001-12-08T17:59:05Z | 2023-12-29T19:30:29Z | [
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] | https://en.wikipedia.org/wiki/Hanukkah |
7,390 | Christian views on marriage | From the earliest days of the Christian faith, Christians have viewed marriage as a divinely blessed, lifelong, monogamous union between a man and a woman. However, while many Christians might agree with the traditional definition, the terminology and theological views of marriage have varied through time in different countries, and among Christian denominations.
Many Protestants consider marriage to be a sacred institution or "holy ordinance" of God. Catholic and Eastern Orthodox Christians consider marriage as a holy sacrament or sacred mystery. However, there have been differing attitudes among denominations and individual Christians towards not only the concept of Christian marriage, but also concerning divorce, remarriage, gender roles, family authority (the "headship" of the husband), the legal status of married women, birth control, marriageable age, cousin marriage, marriage of in-laws, interfaith marriage, same-sex marriage, and polygamy, among other topics, so that in the 21st century there cannot be said to be a single, uniform, worldwide view of marriage among all who profess to be Christians.
Christian teaching has never held that marriage is necessary for everyone; for many centuries in Western Europe, priestly or monastic celibacy was valued as highly as, if not higher than, marriage. Christians who did not marry were expected to refrain from all sexual activity, as were those who took holy orders or monastic vows.
In some Western countries, a separate and secular civil wedding ceremony is required for recognition by the state, while in other Western countries, couples must merely obtain a marriage license from a local government authority and can be married by Christian or other clergy if they are authorized by law to conduct weddings. In this case, the state recognizes the religious marriage as a civil marriage as well; and Christian couples married in this way have all the rights of civil marriage, including, for example, divorce, even if their church forbids divorce.
Christians believe that marriage is considered in its ideal according to the purpose of God, and that at the heart of God's design for marriage is companionship and intimacy.
The biblical picture of marriage expands into something much broader, with the husband and wife relationship illustrating the relationship between Christ and the church.
It is also considered in its actual occurrence, sometimes involving failure. Therefore, the Bible speaks on the subject of divorce. The New Testament recognizes a place for singleness. Salvation within Christianity is not dependent on the continuation of a biological lineage.
Christians interpret the Genesis creation account as telling the story of when God instituted marriage, which they hold to have taken place after the creation of the first woman, Eve, from Adam, the first man.
The Lord God said, "It is not good for the man to be alone. I will make a helper suitable for him."
Now the Lord God had formed out of the ground all the wild animals and all the birds in the sky. He brought them to the man to see what he would name them; and whatever the man called each living creature, that was its name. So the man gave names to all the livestock, the birds in the sky and all the wild animals.
But for Adam no suitable helper was found. So the Lord God caused the man to fall into a deep sleep; and while he was sleeping, he took one of the man's ribs and then closed up the place with flesh. Then the Lord God made a woman from the rib he had taken out of the man, and he brought her to the man.
The man said,
"This is now bone of my bones and flesh of my flesh; she shall be called 'woman,' for she was taken out of man."
That is why a man leaves his father and mother and is united to his wife, and they become one flesh.
Polygyny, or men having multiple wives at once, is one of the most common marital arrangements represented in the Old Testament, yet scholars doubt that it was common among average Israelites because of the wealth needed to practice it. Both the biblical patriarchs and kings of Israel are described as engaged in polygamous relationships. Despite the various polygynous relationships in the Bible, Old Testament scholar Peter Gentry has said that it does not mean that God condones polygyny. He also made note of the various problems that polygynous relationships present with the examples of Abraham, Jacob, David, and Solomon in the Bible. Alternatively, this could be a case of graded absolutism.
Betrothal (erusin), which is merely a binding promise to get married, is distinct from marriage itself (nissu'in), with the time between these events varying substantially. Nonetheless, when a couple is betrothed, they are held accountable to the laws against adultery, like an officially married couple. From this, it is implied that a couple is considered to be married even they have only been betrothed. Since a wife was regarded as property in biblical times, the betrothal (erusin) was effected simply by purchasing her from her father (or guardian) (i.e. paying the bride price to the woman and her father); the woman's consent is not explicitly required by any biblical law. Nonetheless, in one Biblical story, Rebecca was asked whether she agreed to be married before the marriage took place. Additionally, according to French anthropologist Philippe Rospabé, the payment of the bride price does not entail the purchase of a woman, as was thought in the early twentieth century. Instead, it is a purely symbolic gesture acknowledging (but never paying off) the husband's permanent debt to the wife's parents.
Like the adjacent Arabic culture (in the pre-Islamic period), the act of marriage appears mainly to have consisted of the groom fetching the bride, although among the Israelites the procession was a festive occasion, accompanied by music, dancing, and lights. To celebrate the marriage, week-long feasts were sometimes held.
In Old Testament times, a wife was submissive to her husband, which may interpreted as Israelite society viewing wives as the chattel of husbands. The descriptions of the Bible suggest that she would be expected to perform tasks such as spinning, sewing, weaving, manufacture of clothing, fetching of water, baking of bread, and animal husbandry. However, wives were usually looked after with care, and bigamous men were expected to ensure that they give their first wife food, clothing, and sexual activity.
Since a wife was regarded as property, her husband was originally free to divorce her with little restriction, at any time. A divorced couple could get back together unless the wife had married someone else after her divorce.
The Bible clearly addresses marriage and divorce. Those in troubled marriages are encouraged to seek counseling and restoration because, according to some advocates of traditional marriage ethics, most divorces are neither necessary nor unavoidable.
"Have you not read that at the beginning the Creator made them male and female, and said, "For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh"? So they are no longer two, but one. Therefore, what God has joined together, let no one separate."
In the gospels of both Matthew and Mark, Jesus appealed to God's will in creation. He builds upon the narratives in where male and female are created together and for one another. Thus Jesus takes a firm stance on the permanence of marriage in the original will of God. This corresponds closely with the position of the Pharisee school of thought led by Shammai, at the start of the first millennium, with which Jesus would have been familiar. By contrast, Rabbinic Judaism subsequently took the opposite view, espoused by Hillel, the leader of the other major Pharisee school of thought at the time; in Hillel's view, men were allowed to divorce their wives for any reason.
Some hold that marriage vows are unbreakable, so that even in the distressing circumstances in which a couple separates, they are still married from God's point of view. This is the Roman Catholic church's position, although occasionally the church will declare a marriage to be "null" (in other words, it never really was a marriage). William Barclay (1907-1978) has written:
There is no time in history when the marriage bond stood in greater peril of destruction than in the days when Christianity first came into this world. At that time the world was in danger of witnessing the almost total break-up of marriage and the collapse of the home... Theoretically no nation ever had a higher ideal of marriage than the Jews had. The voice of God had said, "I hate divorce"
Jesus brought together two passages from Genesis, reinforcing the basic position on marriage found in Jewish scripture. Thus, he implicitly emphasized that it is God-made ("God has joined together"), "male and female," lifelong ("let no one separate"), and monogamous ("a man...his wife").
Jesus used the image of marriage and the family to teach the basics about the Kingdom of God. He inaugurated his ministry by blessing the wedding at Cana. In the Sermon on the Mount he set forth a new commandment concerning marriage, teaching that lustful looking constitutes adultery. He also superseded a Mosaic Law allowing divorce with his teaching that "anyone who divorces his wife, except for sexual immorality (Greek porneia), causes her to become an adulteress, and anyone who marries the divorced woman commits adultery". Similar Pauline teachings are found in 1 Corinthians 7. The exception clause—"except for"—uses the Greek word porneia which is variously translated "fornication" (KJV), "marital unfaithfulness" (NIV 1984), "sexual immorality" (NIV 2011), "unchastity" (RSV), et al. The KJV New Testament Greek Lexicon, KJV says porneia includes a variety of sexual "deviations" to include "illicit sexual intercourse, adultery, fornication, homosexuality, lesbianism, intercourse with animals, etc., sexual intercourse with close relatives...."
Theologian Frank Stagg says that manuscripts disagree as to the presence in the original text of the phrase "except for fornication". Stagg writes: "Divorce always represents failure...a deviation from God's will.... There is grace and redemption where there is contrition and repentance.... There is no clear authorization in the New Testament for remarriage after divorce." Stagg interprets the chief concern of Matthew 5 as being "to condemn the criminal act of the man who divorces an innocent wife.... Jesus was rebuking the husband who victimizes an innocent wife and thinks that he makes it right with her by giving her a divorce". He points out that Jesus refused to be trapped by the Pharisees into choosing between the strict and liberal positions on divorce as held at the time in Judaism. When they asked him, "Is it lawful for a man to divorce his wife for any cause?" he answered by reaffirming God's will as stated in Genesis, that in marriage husband and wife are made "one flesh", and what God has united man must not separate.
There is no evidence that Jesus himself ever married, and considerable evidence that he remained single. In contrast to Judaism and many other traditions, he taught that there is a place for voluntary singleness in Christian service. He believed marriage could be a distraction from an urgent mission, that he was living in a time of crisis and urgency where the Kingdom of God would be established where there would be no marriage nor giving in marriage:
"I tell you the truth," Jesus said to them, "no one who has left home or wife or brothers or parents or children for the sake of the kingdom of God will fail to receive many times as much in this age and, in the age to come, eternal life."
In Matthew 22, Jesus is asked about the continuing state of marriage after death and he affirms that at the resurrection "people neither marry nor be given in marriage; they are like the angels in heaven.".
The Apostle Paul quoted passages from Genesis almost verbatim in two of his New Testament books. He used marriage not only to describe the kingdom of God, as Jesus had done, but to define also the nature of the 1st-century Christian church. His theological view was a Christian development of the Old Testament parallel between marriage and the relationship between God and Israel. He analogized the church as a bride and Christ as the bridegroom─drawing parallels between Christian marriage and the relationship between Christ and the Church.
There is no hint in the New Testament that Jesus was ever married, and no clear evidence that Paul was ever married. However, both Jesus and Paul seem to view marriage as a legitimate calling from God for Christians. Paul elevates singleness to that of the preferable position, but does offer a caveat suggesting this is "because of the impending crisis"—which could itself extend to present times (see also Pauline privilege). Paul's primary issue was that marriage adds concerns to one's life that detract from their ability to serve God without distraction.
Some scholars have speculated that Paul may have been a widower since prior to his conversion to Christianity he was a Pharisee and member of the Sanhedrin, positions in which the social norm of the day required the men to be married. But it is just as likely that he never married at all.
Yet, Paul acknowledges the mutuality of marital relations, and recognizes that his own singleness is "a particular gift from God" that others may not necessarily have. He writes: "Now to the unmarried and the widows I say: It is good for them to stay unmarried, as I am. But if they cannot control themselves, they should marry, for it is better to marry than to burn with passion."
Paul indicates that bishops, deacons, and elders must be "husbands of one wife", and that women must have one husband. This is usually understood to legislate against polygamy rather than to require marriage:
Now the overseer (bishop) is to be above reproach, faithful to his wife, temperate, self-controlled, respectable, hospitable, able to teach, not given to drunkenness, not violent but gentle, not quarrelsome, not a lover of money.
A deacon must be faithful to his wife and must manage his children and his household well.
The reason I left you in Crete was that you might put in order what was left unfinished and appoint (or ordain) elders in every town, as I directed you. An elder must be blameless, faithful to his wife, a man whose children believe and are not open to the charge of being wild and disobedient.
In the Roman Age, female widows who did not remarry were considered more pure than those who did. Such widows were known as one man woman (enos andros gune) in the epistles of Paul. Paul writes:
No widow may be put on the list of widows unless she is over sixty, has been faithful to her husband, and is well known for her good deeds, such as bringing up children, showing hospitality, washing the feet of the Lord’s people, helping those in trouble and devoting herself to all kinds of good deeds".
Paul allowed widows to remarry. Paul says that only one-man women older than 60 years can make the list of Christian widows who did special tasks in the community, but that younger widows should remarry to hinder sin.
Building on what they saw the example of Jesus and Paul advocating, some early Church Fathers placed less value on the family and saw celibacy and freedom from family ties as a preferable state.
Nicene Fathers such as Augustine believed that marriage was a sacrament because it was a symbol used by Paul to express Christ's love of the Church. However, there was also an apocalyptic dimension in his teaching, and he was clear that if everybody stopped marrying and having children that would be an admirable thing; it would mean that the Kingdom of God would return all the sooner and the world would come to an end. Such a view reflects the Manichaean past of Augustine.
While upholding the New Testament teaching that marriage is "honourable in all and the bed undefiled," Augustine believed that "yet, whenever it comes to the actual process of generation, the very embrace which is lawful and honourable cannot be effected without the ardour of lust...This is the carnal concupiscence, which, while it is no longer accounted sin in the regenerate, yet in no case happens to nature except from sin."
Both Tertullian and Gregory of Nyssa were church fathers who were married. They each stressed that the happiness of marriage was ultimately rooted in misery. They saw marriage as a state of bondage that could only be cured by celibacy. They wrote that at the very least, the virgin woman could expect release from the "governance of a husband and the chains of children."
Tertullian argued that second marriage, having been freed from the first by death,"will have to be termed no other than a species of fornication," partly based on the reasoning that this involves desiring to marry a woman out of sexual ardor, which a Christian convert is to avoid.
Also advocating celibacy and virginity as preferable alternatives to marriage, Jerome wrote: "It is not disparaging wedlock to prefer virginity. No one can make a comparison between two things if one is good and the other evil." On First Corinthians 7:1 he reasons, "It is good, he says, for a man not to touch a woman. If it is good not to touch a woman, it is bad to touch one: for there is no opposite to goodness but badness. But if it be bad and the evil is pardoned, the reason for the concession is to prevent worse evil."
St. John Chrysostom wrote: "...virginity is better than marriage, however good.... Celibacy is...an imitation of the angels. Therefore, virginity is as much more honorable than marriage, as the angel is higher than man. But why do I say angel? Christ, Himself, is the glory of virginity."
Cyprian, Bishop of Carthage, said that the first commandment given to men was to increase and multiply, but now that the earth was full there was no need to continue this process of multiplication.
This view of marriage was reflected in the lack of any formal liturgy formulated for marriage in the early Church. No special ceremonial was devised to celebrate Christian marriage—despite the fact that the Church had produced liturgies to celebrate the Eucharist, Baptism and Confirmation. It was not important for a couple to have their nuptials blessed by a priest. People could marry by mutual agreement in the presence of witnesses.
At first, the old Roman pagan rite was used by Christians, although modified superficially. The first detailed account of a Christian wedding in the West dates from the 9th century. This system, known as Spousals, persisted after the Reformation.
Today all Christian denominations regard marriage as a sacred institution, a covenant. Roman Catholics consider it to be a sacrament. Marriage was officially recognized as a sacrament at the 1184 Council of Verona. Before then, no specific ritual was prescribed for celebrating a marriage: "Marriage vows did not have to be exchanged in a church, nor was a priest's presence required. A couple could exchange consent anywhere, anytime."
In the decrees on marriage of the Council of Trent (twenty-fourth session from 1563), the validity of marriage was made dependent upon the wedding taking place before a priest and two witnesses, although the lack of a requirement for parental consent ended a debate that had proceeded from the 12th century. In the case of a divorce, the right of the innocent party to marry again was denied so long as the other party was alive, even if the other party had committed adultery.
The Catholic Church allowed marriages to take place inside churches only starting with the 16th century, beforehand religious marriages happened on the porch of the church.
The Roman Catholic Church teaches that God himself is the author of the sacred institution of marriage, which is His way of showing love for those He created. Marriage is a divine institution that can never be broken, even if the husband or wife legally divorce in the civil courts; as long as they are both alive, the Church considers them bound together by God. Holy Matrimony is another name for sacramental marriage. Marriage is intended to be a faithful, exclusive, lifelong union of a man and a woman. Committing themselves completely to each other, a Catholic husband and wife strive to sanctify each other, bring children into the world, and educate them in the Catholic way of life. Man and woman, although created differently from each other, complement each other. This complementarity draws them together in a mutually loving union.
The valid marriage of baptized Christians is one of the seven Roman Catholic sacraments. The sacrament of marriage is the only sacrament that a priest does not administer directly; a priest, however, is the chief witness of the husband and wife's administration of the sacrament to each other at the wedding ceremony in a Catholic church.
The Roman Catholic Church views that Christ himself established the sacrament of marriage at the wedding feast of Cana; therefore, since it is a divine institution, neither the Church nor state can alter the basic meaning and structure of marriage. Husband and wife give themselves totally to each other in a union that lasts until death.
Priests are instructed that marriage is part of God's natural law and to support the couple if they do choose to marry. Today it is common for Roman Catholics to enter into a "mixed marriage" between a Catholic and a baptized non-Catholic. Couples entering into a mixed marriage are usually allowed to marry in a Catholic church provided their decision is of their own accord and they intend to remain together for life, to be faithful to each other, and to have children which are brought up in the Catholic faith.
In Roman Catholic teaching, marriage has two objectives: the good of the spouses themselves, and the procreation and education of children (1983 code of canon law, c.1055; 1994 catechism, par.2363). Hence "entering marriage with the intention of never having children is a grave wrong and more than likely grounds for an annulment." It is normal procedure for a priest to ask the prospective bride and groom about their plans to have children before officiating at their wedding. The Roman Catholic Church may refuse to marry anyone unwilling to have children, since procreation by "the marriage act" is a fundamental part of marriage. Thus usage of any form of contraception, in vitro fertilization, or birth control besides natural family planning is a grave offense against the sanctity of marriage and ultimately against God.
Most Protestant denominations hold marriage to be ordained by God for the union between a man and a woman. They see the primary purposes of this union as intimate companionship, rearing children and mutual support for both husband and wife to fulfill their life callings. Protestant Christian denominations consider marital sexual pleasure to be a gift of God, though they vary on their position on birth control, ranging from the acceptance of the use of contraception to only allowing natural family planning to teaching Quiverfull doctrine—that birth control is sinful and Christians should have large families. Conservative Protestants consider marriage a solemn covenant between wife, husband and God. Most view sexual relations as appropriate only within a marriage. Protestant Churches discourage divorce though the way it is addressed varies by denomination; for example, the Reformed Church in America permits divorce and remarriage, while connexions such as the Evangelical Methodist Church Conference forbid divorce except in the case of fornication and do not allow for remarriage in any circumstance.
Many Methodist Christians teach that marriage is "God's gift and covenant intended to imitate God's covenant with humankind" that "Christians enter in their baptism." For example, the rite used in the Free Methodist Church proclaims that marriage is "more than a legal contract, being a bond of union made in heaven, into which you enter discreetly and reverently."
Roles and responsibilities of husband and wives now vary considerably on a continuum between the long-held male dominant/female submission view and a shift toward equality (without sameness) of the woman and the man. There is considerable debate among many Christians today—not just Protestants—whether equality of husband and wife or male headship is the biblically ordained view, and even if it is biblically permissible. The divergent opinions fall into two main groups: Complementarians (who call for husband-headship and wife-submission) and Christian Egalitarians (who believe in full partnership equality in which couples can discover and negotiate roles and responsibilities in marriage).
There is no debate that Ephesians 5 presents a historically benevolent husband-headship/wife-submission model for marriage. The questions are (a) how these New Testament household codes are to be reconciled with the calls earlier in Chapter 5 (cf. verses 1, 18, 21) for mutual submission among all believers, and (b) the meaning of "head" in v.23. It is important to note that verse 22 contains no verb in the original manuscripts, which were also not divided into verses: Ephesians 5 (NIV)
In the Eastern Orthodox Church, marriage is treated as a Sacred Mystery (sacrament), and as an ordination. It serves to unite a woman and a man in eternal union before God. It refers to the 1st centuries of the church, where spiritual union of spouses in the first sacramental marriage was eternal. Therefore, it is considered a martyrdom as each spouse learns to die to self for the sake of the other. Like all Mysteries, Orthodox marriage is more than just a celebration of something which already exists: it is the creation of something new, the imparting to the couple of the grace which transforms them from a 'couple' into husband and wife within the Body of Christ.
Marriage is an icon (image) of the relationship between Jesus and the Church. This is somewhat akin to the Old Testament prophets' use of marriage as an analogy to describe the relationship between God and Israel. Marriage is the simplest, most basic unity of the church: a congregation where "two or three are gathered together in Jesus' name." The home is considered a consecrated space (the ritual for the Blessing of a House is based upon that of the Consecration of a Church), and the husband and wife are considered the ministers of that congregation. However, they do not "perform" the Sacraments in the house church; they "live" the Sacrament of Marriage. Because marriage is considered to be a pilgrimage wherein the couple walk side by side toward the Kingdom of Heaven, marriage to a non-Orthodox partner is discouraged, though it may be permitted.
Unlike Western Christianity, Eastern Christians do not consider the sacramental aspect of the marriage to be conferred by the couple themselves. Rather, the marriage is conferred by the action of the Holy Spirit acting through the priest. Furthermore, no one besides a bishop or priest—not even a deacon—may perform the Sacred Mystery.
The external sign of the marriage is the placing of wedding crowns upon the heads of the couple, and their sharing in a "Common Cup" of wine. Once crowned, the couple walk a circle three times in a ceremonial "dance" in the middle of the church, while the choir intones a joyous three-part antiphonal hymn, "Dance, Isaiah"
The sharing of the Common Cup symbolizes the transformation of their union from a common marriage into a sacred union. The wedding is usually performed after the Divine Liturgy at which the couple receives Holy Communion. Traditionally, the wedding couple would wear their wedding crowns for eight days, and there is a special prayer said by the priest at the removal of the crowns.
Divorce is discouraged. Sometimes out of economia (mercy) a marriage may be dissolved if there is no hope whatever for a marriage to fulfill even a semblance of its intended sacramental character. The standard formula for remarriage is that the Orthodox Church joyfully blesses the first marriage, merely performs the second, barely tolerates the third, and invariably forbids the fourth. "On the basis of the ideal of the first marriage as an image of the glory of God the question is which significance such a second marriage has and whether it can be regarded as Mysterion. Even though there are opinions (particularly in the west) which deny the sacramental character to the second marriage, in the orthodox literature almost consistently either a reduced or even a full sacramentality is attributed to it. The investigation of the second marriage rite shows that both positions affirming the sacramentality to a second marriage can be justified."
Early church texts forbid marriage between an Orthodox Christian and a heretic or schismatic (which would include all non-Orthodox Christians). Traditional Orthodox Christians forbid mixed marriages with other denominations. More liberal ones perform them, provided that the couple formally commit themselves to rearing their children in the Orthodox faith.
All people are called to celibacy—human beings are all born into virginity, and Orthodox Christians are expected by Sacred Tradition to remain in that state unless they are called into marriage and that call is sanctified. The church blesses two paths on the journey to salvation: monasticism and marriage. Mere celibacy, without the sanctification of monasticism, can fall into selfishness and tends to be regarded with disfavour by the Church.
Orthodox priests who serve in parishes are usually married. They must marry prior to their ordination. If they marry after they are ordained they are not permitted to continue performing sacraments. If their wife dies, they are forbidden to remarry; if they do, they may no longer serve as a priest. A married man may be ordained as a priest or deacon. However, a priest or deacon is not permitted to enter into matrimony after ordination. Bishops must always be monks and are thus celibate. However, if a married priest is widowed, he may receive monastic tonsure and thus become eligible for the episcopate.
The Eastern Orthodox Church believes that marriage is an eternal union of spouses, but in Heaven there will not be a procreative bond of marriage.
The Non-Chalcedonian Churches of Oriental Orthodoxy hold views almost identical to those of the (Chalcedonian) Eastern Orthodox Church. The Coptic Orthodox Church allows second marriages only in cases of adultery or death of spouse.
In the teachings of the Church of Jesus Christ of Latter-day Saints (LDS Church), celestial (or eternal) marriage is a covenant between a man, a woman, and God performed by a priesthood authority in a temple of the church. Celestial marriage is intended to continue forever into the afterlife if the man and woman do not break their covenants. Thus, eternally married couples are often referred to as being "sealed" to each other. Sealed couples who keep their covenants are also promised to have their posterity sealed to them in the afterlife. (Thus, "families are forever" is a common phrase in the LDS Church.) A celestial marriage is considered a requirement for exaltation.
In some countries, celestial marriages can be recognized as civil marriages; in other cases, couples are civilly married outside of the temple and are later sealed in a celestial marriage. (The church will no longer perform a celestial marriage for a couple unless they are first or simultaneously legally married.) The church encourages its members to be in good standing with it so that they may marry or be sealed in the temple. A celestial marriage is not annulled by a civil divorce: a "cancellation of a sealing" may be granted, but only by the First Presidency, the highest authority in the church. Civil divorce and marriage outside the temple carries somewhat of a stigma in the Mormon culture; the church teaches that the "gospel of Jesus Christ—including repentance, forgiveness, integrity, and love—provides the remedy for conflict in marriage." Regarding marriage and divorce, the church instructs its leaders: "No priesthood officer is to counsel a person whom to marry. Nor should he counsel a person to divorce his or her spouse. Those decisions must originate and remain with the individual. When a marriage ends in divorce, or if a husband and wife separate, they should always receive counseling from Church leaders."
In church temples, members of the LDS Church perform vicarious celestial marriages for deceased couples who were legally married.
The New Church teaches that marital love (or "conjugial love") is "the precious jewel of human life and the repository of the Christian religion" because the love shared between a husband and a wife is the source of all peace and joy. Emanuel Swedenborg coined the term "conjugial" (rather than the more usual adjective in reference to marital union, "conjugal") to describe the special love experienced by married partners. When a husband and wife work together to build their marriage on earth, that marriage continues after the deaths of their bodies and they live as angels in heaven into eternity. Swedenborg claimed to have spoken with angelic couples who had been married for thousands of years. Those who never married in the natural world will, if they wish, find a spouse in heaven.
The Jehovah's Witnesses view marriage to be a permanent arrangement with the only possible exception being adultery. Divorce is strongly discouraged even when adultery is committed since the wronged spouse is free to forgive the unfaithful one. There are provisions for a domestic separation in the event of "failure to provide for one's household" and domestic violence, or spiritual resistance on the part of a partner. Even in such situations though divorce would be considered grounds for loss of privileges in the congregation. Remarrying after death or a proper divorce is permitted. Marriage is the only situation where any type of sexual interaction is acceptable, and even then certain restrictions apply to acts such as oral and anal sex. Married persons who are known to commit such acts may in fact lose privileges in the congregation as they are supposed to be setting a good example to the congregation.
In Christianity, an interdenominational marriage (also known as an ecumenical marriage) is a marriage between two baptized Christians who belong to different Christian denominations, e.g. a wedding between a Lutheran Christian man and a Catholic Christian woman. Nearly all Christian denominations permit interdenominational marriages.
In Methodism, ¶81 of the 2014 Discipline of the Allegheny Wesleyan Methodist Connection, states with regard to interdenominational marriages: "We do not prohibit our people from marrying persons who are not of our connection, provided such persons have the form and are seeking the power of godliness; but we are determined to discourage their marrying persons who do not come up to this description."
The Catholic Church recognizes as sacramental, (1) the marriages between two baptized Protestants or between two baptized Orthodox Christians, as well as (2) marriages between baptized non-Catholic Christians and Catholic Christians, although in the latter case, consent from the diocesan bishop must be obtained, with this being termed "permission to enter into a mixed marriage". To illustrate (1), for example, "if two Lutherans marry in the Lutheran Church in the presence of a Lutheran minister, the Catholic Church recognizes this as a valid sacrament of marriage." Weddings in which both parties are Catholic Christians are ordinarily held in a Catholic church, while weddings in which one party is a Catholic Christian and the other party is a non-Catholic Christian can be held in a Catholic church or a non-Catholic Christian church.
In Christianity, an interfaith marriage is a marriage between a baptized Christian and a non-baptized person, e.g. a wedding between a Christian man and Jewish woman.
In the Presbyterian Church (USA), the local church congregation is tasked with supporting and including an interfaith couple with one being a baptized Presbyterian Christian and the other being a non-Christian, in the life of the Church, "help[ing] parents make and live by commitments about the spiritual nurture of their children", and being inclusive of the children of the interfaith couple. The pastor is to be available to help and counsel the interfaith couple in their life journey.
Although the Catholic Church recognizes as natural marriages weddings between two non-Christians or those between a Catholic Christian and a non-Christian, these are not considered to be sacramental, and in the latter case, the Catholic Christian must seek permission from his/her bishop for the marriage to occur; this permission is known as "dispensation from disparity of cult".
In Methodist Christianity, the 2014 Discipline of the Allegheny Wesleyan Methodist Connection discourages interfaith marriages, stating "Many Christians have married unconverted persons. This has produced bad effects; they have either been hindered for life, or have turned back to perdition." Though the United Methodist Church authorizes its clergy to preside at interfaith marriages, it notes that Corinthians 6 has been interpreted "as at least an ideal if not an absolute ban on such [interfaith] marriages as an issue of scriptural faithfulness, if not as an issue of Christian survival." At the same time, for those already in an interfaith marriage (including cases in which there is a non-Christian couple and one party converts to Christianity after marriage), the Church notes that Saint Paul "addresses persons married to unbelievers and encourages them to stay married."
Anglican denominations such as the Episcopal Church in United States the Anglican Church of Canada, the Anglican Church in Aotearoa, New Zealand and Polynesia, the Anglican Episcopal Church of Brazil, the Scottish Episcopal Church in Scotland and mainline Protestant denominations such as the United Church of Christ, the United Church of Canada, the Metropolitan Community Church, the Presbyterian Church (USA), the Quakers, the United Reformed Church in United Kingdom, the Church of Scotland, the Methodist Church of Great Britain, the Church of Iceland, the Church of Sweden, the Church of Denmark, the Church of Norway, the United Protestant Church in Belgium, the Protestant Church in Baden, the Evangelical Church in Berlin, Brandenburg and Silesian Upper Lusatia, the Evangelical Church of Bremen, the Evangelical Lutheran Church in Brunswick, the Evangelical Church of Hesse Electorate-Waldeck, the Evangelical Lutheran Church in Oldenburg, the Evangelical Lutheran Church of Hanover, the Church of Lippe, the Evangelical Reformed Church in Bavaria and Northwestern Germany, the Evangelical Church in the Rhineland, the Protestant Church in Hesse and Nassau, the Evangelical Lutheran Church in Northern Germany the Protestant Church of the Palatinate, the Evangelical Church of Westphalia, the Mennonite Church in the Netherlands the United Protestant Church of France, the Catholic Diocese of the Old Catholics in Germany, the Christian Catholic Church of Switzerland, some Reformed churches in Federation of Swiss Protestant Churches for example the Reformed Church of Aargau, the Protestant Church of Geneva or the Evangelical Reformed Church of the Canton of Zürich and some non-trinitarian denominations such as the Unity Church and the Unitarians, some international evangelical denominations, such as the Association of Welcoming and Affirming Baptists and Affirming Pentecostal Church International perform weddings between same-sex couples.
The Evangelical Lutheran Church of America, the Evangelical Lutheran Church in Canada, some Lutheran and united churches in Evangelical Church in Germany, some Reformed churches in Federation of Swiss Protestant Churches, and the Protestant Church in the Netherlands do not administer sacramental marriage to same-sex couples, but blesses same-sex unions through the use of a specific liturgy.
The Catholic Church, Eastern Orthodox Church, and other more conservative Protestant denominations do not perform or recognize same-sex marriage because they do not consider it as marriage at all, and considering any homosexual sexual activity to be sinful. The Global Anglican Future Conference (GAFCON) consisting of the Church of Nigeria, Anglican Church of Kenya, Anglican Church of Tanzania, Rwanda and Uganda; Anglican Church of South America, Australia, parts of England, Canada, USA and Church of India through the Jerusalem Conference clearly asserted "the unchangeable standard of Christian marriage between one man and one woman as the proper place for sexual intimacy."
With respect to religion, historic Christian belief emphasizes that Christian weddings should occur in a church as Christian marriage should begin where one also starts their faith journey (Christians receive the sacrament of baptism in church in the presence of their congregation). Catholic Christian weddings must "take place in a church building" as holy matrimony is a sacrament; sacraments normatively occur in the presence of Christ in the house of God, and "members of the faith community [should be] present to witness the event and provide support and encouragement for those celebrating the sacrament." Bishops never grant permission "to those requesting to be married in a garden, on the beach, or some other place outside of the church" and a dispensation is only granted "in extraordinary circumstances (for example, if a bride or groom is ill or disabled and unable to come to the church)." Marriage in the church, for Christians, is seen as contributing to the fruit of the newlywed couple regularly attending church each Lord's Day and raising children in the faith.
Christians seek to uphold the seriousness of wedding vows. Yet, they respond with compassion to deep hurts by recognizing that divorce, though less than the ideal, is sometimes necessary to relieve one partner of intolerable hardship, unfaithfulness or desertion. While the voice of God had said, "I hate divorce", some authorities believe the divorce rate in the church is nearly comparable to that of the culture at large.
Christians today hold three competing views as to what is the biblically ordained relationship between husband and wife. These views range from Christian egalitarianism that interprets the New Testament as teaching complete equality of authority and responsibility between the man and woman in marriage, all the way to Patriarchy that calls for a "return to complete patriarchy" in which relationships are based on male-dominant power and authority in marriage:
1. Christian Egalitarians believe in an equal partnership of the wife and husband with neither being designated as the leader in the marriage or family. Instead, the wife and husband share a fully equal partnership in both their marriage and in the family. Its proponents teach "the fundamental biblical principle of the equality of all human beings before God".
"There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus."
According to this principle, there can be no moral or theological justification for permanently granting or denying status, privilege, or prerogative solely on the basis of a person's race, class, or gender.
2. Christian Complementarians prescribe husband-headship—a male-led hierarchy. This view's core beliefs call for a husband's "loving, humble headship" and the wife's "intelligent, willing submission" to his headship. They believe women have "different but complementary roles and responsibilities in marriage".
3. Biblical patriarchy, though not at all popular among mainstream Christians, prescribes a strict male-dominant hierarchy. A very strong view makes the husband the ruler over his wife and his household. Their organization's first tenet is that "God reveals Himself as masculine, not feminine. God is the eternal Father and the eternal Son, the Holy Spirit is also addressed as He, and Jesus Christ is a male". They consider the husband-father to be sovereign over his household—the family leader, provider, and protector. They call for a wife to be obedient to her head (her husband).
Some Christian authorities permit the practice polygamy (specifically polygyny), but this practice, besides being illegal in Western cultures, is now considered to be out of the Christian mainstream in most parts of the globe; the Lutheran World Federation hosted a regional conference in Africa, in which the acceptance of polygamists and their wives into full membership by the Lutheran Church in Liberia was defended as being permissible. While the Lutheran Church in Liberia permits men to retain their wives if they married them prior to being received into the Church, it does not permit polygamists who have become Christians to marry more wives after they have received the sacrament of Holy Baptism.
Much of the dispute hinges on how one interprets the New Testament household code (Haustafel), a term coined by Martin Luther, which has as its main focus hierarchical relationships between three pairs of social classes that were controlled by Roman law: husbands/wives, parents/children, and masters/slaves. The apostolic teachings, with variations, that constitute what has been termed the "household code" occurs in four epistles (letters) by the Apostle Paul and in 1 Peter.
In the early Roman Republic, long before the time of Christ, the law of manus along with the concept of patria potestas (rule of the fathers), gave the husband nearly absolute autocratic power over his wife, children, and slaves, including the power of life and death. In practice, the extreme form of this right was seldom exercised, and it was eventually limited by law.
Theologian Frank Stagg finds the basic tenets of the code in Aristotle's discussion of the household in Book 1 of Politics and in Philo's Hypothetica 7.14. Serious study of the New Testament Household Code (Haustafel) began with Martin Dilbelius in 1913, with a wide range of studies since then. In a Tübingen dissertation, by James E. Crouch concludes that the early Christians found in Hellenistic Judaism a code which they adapted and Christianized.
The Staggs believe the several occurrences of the New Testament household code in the Bible were intended to meet the needs for order within the churches and in the society of the day. They maintain that the New Testament household code is an attempt by Paul and Peter to Christianize the concept of family relationships for Roman citizens who had become followers of Christ. The Staggs write that there is some suggestion in scripture that because Paul had taught that they had newly found freedom "in Christ", wives, children, and slaves were taking improper advantage of the Haustafel both in the home and the church. "The form of the code stressing reciprocal social duties is traced to Judaism's own Oriental background, with its strong moral/ethical demand but also with a low view of woman.... At bottom is probably to be seen the perennial tension between freedom and order.... What mattered to (Paul) was 'a new creation' and 'in Christ' there is 'not any Jew not Greek, not any slave nor free, not any male and female'.
Two of these Christianized codes are found in Ephesians 5 (which contains the phrases "husband is the head of the wife" and "wives, submit to your husband") and in Colossians 3, which instructs wives to subordinate themselves to their husbands.
The importance of the meaning of "head" as used by the Apostle Paul is pivotal in the conflict between the Complementarian position and the Egalitarian view. The word Paul used for "head", transliterated from Greek, is kephalē. Today's English word "cephalic" (/səˈfælɪk/ sə-FAL-ik) stems from the Greek kephalē and means "of or relating to the head; or located on, in, or near the head." A thorough concordance search by Catherine Kroeger shows that the most frequent use of "head" (kephalē) in the New Testament is to refer to "the anatomical head of a body". She found that its second most frequent use in the New Testament was to convey the metaphorical sense of "source". Other Egalitarian authors such as Margaret Howe agree with Kroeger, writing that "The word 'head' must be understood not as 'ruler' but as 'source'".
Wayne Grudem criticizes commonly rendering kephalē in those same passages only to mean "source", and argues that it denotes "authoritative head" in such texts as Corinthians 11. They interpret that verse to mean that God the father is the authoritative head over the Son, and in turn Jesus is the authoritative head over the church, not simply its source. By extension, they then conclude that in marriage and in the church, the man is the authoritative head over the woman.
Another potential way to define the word "head", and hence the relationship between husband and wife as found in the Bible, is through the example given in the surrounding context in which the word is found. In that context the husband and wife are compared to Christ and his church. The context seems to imply an authority structure based on a man sacrificing himself for his wife, as Christ did for the church; a love-based authority structure, where submission is not required but freely given based on the care given to the wife.
Some biblical references on this subject are debated depending on one's school of theology. The historical grammatical method is a hermeneutic technique that strives to uncover the meaning of the text by taking into account not just the grammatical words, but also the syntactical aspects, the cultural and historical background, and the literary genre. Thus references to a patriarchal Biblical culture may or may not be relevant to other societies. What is believed to be a timeless truth to one person or denomination may be considered a cultural norm or minor opinion to another.
Christian Egalitarians (from the French word "égal" meaning "equal") believe that Christian marriage is intended to be a marriage without any hierarchy—a full and equal partnership between the wife and husband. They emphasize that nowhere in the New Testament is there a requirement for a wife to obey her husband. While "obey" was introduced into marriage vows for much of the church during the Middle Ages, its only New Testament support is found in Peter 3, with that only being by implication from Sarah's obedience to Abraham. Scriptures such as Galatians 3:28 state that in Christ, right relationships are restored and in him, "there is neither Jew nor Greek, slave nor free, male nor female."
Christian Egalitarians interpret scripture to mean that God intended spouses to practice mutual submission, each in equality with the other. The phrase "mutual submission" comes from a verse in Ephesians 5 which precedes advice for the three domestic relationships of the day, including slavery. It reads, "Submit to one another ('mutual submission') out of reverence for Christ", wives to husbands, children to parents, and slaves to their master. Christian Egalitarians believe that full partnership in marriage is the most biblical view, producing the most intimate, wholesome, and reciprocally fulfilling marriages.
The Christian Egalitarian view of marriage asserts that gender, in and of itself, neither privileges nor curtails a believer's gifting or calling to any ministry in the church or home. It does not imply that women and men are identical or undifferentiated, but affirms that God designed men and women to complement and benefit one another. A foundational belief of Christian Egalitarians is that the husband and wife are created equally and are ordained of God to "become one", a biblical principle first ordained by God in Genesis 2, reaffirmed by Jesus in Matthew 19 and Mark 10, and by the Apostle Paul in Ephesians 5. Therefore, they see that "oneness" as pointing to gender equality in marriage. They believe the biblical model for Christian marriages is therefore for the spouses to share equal responsibility within the family—not one over the other nor one under the other.
David Dykes, theologian, author, and pastor of a 15,000-member Baptist church, sermonized that "When you are in Christ, you have full equality with all other believers". In a sermon he entitled "The Ground Is Level at the Foot of the Cross", he said that some theologians have called one particular Bible verse the Christian Magna Carta. The Bible verse reads: "There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus." Acknowledging the differences between men and women, Dykes writes that "in Christ, these differences don't define who we are. The only category that really matters in the world is whether you are in Christ. At the cross, Jesus destroyed all the made-made barriers of hostility:" ethnicity, social status, and gender.
The Galatians 3 passage comes after the apostle Paul tells us he would not submit to what was "hypocritical" to the Gospel. The apostle Peter had affirmed the truth of the Gospel regarding the Gentiles with his words, but his actions compromised it.
Those of the egalitarian persuasion point to the biblical instruction that all Christian believers, irrespective of gender, are to submit or be subject "to one another in the fear of God" or "out of reverence for Christ". Gilbert Bilezikian writes that in the highly debated Ephesians 5 passage, the verb "to be subject" or "to be submitted" appears in verse 21 which he describes as serving as a "hinge" between two different sections. The first section consists of verses 18–20, verse 21 is the connection between the two, and the second section consists of verses 22–33. When discussion begins at verse 22 in Ephesians 5, Paul appears to be reaffirming a chain of command principle within the family. However,
...when interpretation begins with verse 21, the entire passage describes mutual submission within the family. The wife submits to her husband in everything "as unto the Lord." If her husband makes a request unworthy of her Lord, her primary loyalty is "unto the Lord." ...Instruction about submission is four times longer for husbands than for wives. The greatest burden of submission is clearly placed on the husband.
Advocates of Christian egalitarianism believe that this model has firm biblical support:
The egalitarian paradigm leaves it up to the couple to decide who is responsible for what task or function in the home. Such decisions should be made rationally and wisely, not based on gender or tradition. Examples of a couple's decision logic might include:
Complementarians hold to a hierarchical structure between husband and wife. They believe men and women have different gender-specific roles that allow each to complement the other, hence the designation "Complementarians". The Complementarian view of marriage holds that while the husband and wife are of equal worth before God, husbands and wives are given different functions and responsibilities by God that are based on gender, and that male leadership is biblically ordained so that the husband is always the senior authority figure. They state they "observe with deep concern" "accompanying distortions or neglect of the glad harmony portrayed in Scripture between the intelligent, humble leadership of redeemed husbands and the loving, willing support of that leadership by redeemed wives". They believe "the Bible presents a clear chain of authority—above all authority and power is God; God is the head of Christ. Then in descending order, Christ is the head of man, man is the head of woman, and parents are the head of their children." Complementarians teach that God intended men to lead their wives as "heads" of the family. Wayne Grudem, in an article that interprets the "mutual submission" of Ephesians 5 as being hierarchical, writes that it means "being considerate of one another, and caring for one another’s needs, and being thoughtful of one another, and sacrificing for one another."
Scriptures such as 1 Corinthians 11:3: "But I would have you know, that the head of every man is Christ; and the head of the woman is the man; and the head of Christ is God", (KJV) is understood as meaning the wife is to be subject to her husband, if not unconditionally.
According to Complementarian authors John Piper, Wayne Grudem, and others, historically, but to a significantly lesser extent in most of Christianity today, the predominant position in both Catholicism and conservative Protestantism places the male as the "head" in the home and in the church. They hold that women are commanded to be in subjection to male leadership, with a wife being obedient to her head (husband), based upon Old Testament precepts and principles. This view holds that, "God has created men and women equal in their essential dignity and human personhood, but different and complementary in function with male headship in the home and in the Church."
Grudem also acknowledges exceptions to the submission of wives to husbands where moral issues are involved. Rather than unconditional obedience, Complementarian authors such as Piper and Grudem are careful to caution that a wife's submission should never cause her to "follow her husband into sin."
Roman Catholic Church teaching on the role of women includes that of Pope Leo XIII in his 1880 encyclical Arcanum which states:
The husband is the chief of the family and the head of the wife. The woman, because she is flesh of his flesh, and bone of his bone, must be subject to her husband and obey him; not, indeed, as a servant, but as a companion, so that her obedience shall be wanting in neither honor nor dignity. Since the husband represents Christ, and since the wife represents the Church, let there always be, both in him who commands and in her who obeys, a heaven-born love guiding both in their respective duties." This position was affirmed in the 1930 encyclical Casti Connubii, which invokes Ephesians 5:22, "Let women be subject to their husbands as to the Lord, because the husband is the head of the wife, and Christ is the head of the Church.
Though each of their churches is autonomous and self-governed, the official position of the Southern Baptist Convention (the largest Protestant denomination in the United States) is:
The husband and wife are of equal worth before God, since both are created in God's image. A husband is to love his wife as Christ loved the church. He has the God-given responsibility to provide for, to protect, and to lead his family. A wife is to submit herself graciously to the servant leadership of her husband even as the church willingly submits to the headship of Christ. She, being in the image of God as is her husband and thus equal to him, has the God-given responsibility to respect her husband and to serve as his helper in managing the household and nurturing the next generation."
The patriarchal model of marriage is clearly the oldest one. It characterized the theological understanding of most Old Testament writers. It mandates the supremacy, at times the ultimate domination, of the husband-father in the family. In the first century Roman Empire, in the time of Jesus, Paul, and Peter, it was the law of the land and gave the husband absolute authority over his wife, children, and slaves—even the power of life or death. It subordinates all women.
Biblical patriarchy is similar to Complementarianism but with differences of degree and emphasis. Biblical patriarchists carry the husband-headship model considerably further and with more militancy. While Complementarians also hold to exclusively male leadership in both the home and the church, Biblical patriarchy extends that exclusion to the civic sphere as well, so that women should not be civil leaders and indeed should not have careers outside the home.
Patriarchy is based on authoritarianism—complete obedience or subjection to male authority as opposed to individual freedom. Patriarchy gives preeminence to the male in essentially all matters of religion and culture. It explicitly deprives all women of social, political, and economic rights. The marriage relationship simply reinforced this dominance of women by men, providing religious, cultural, and legal structures that clearly favor patriarchy to the exclusion of even basic human dignity for wives.
Historically in classical patriarchy, the wives and children were always legally dependent upon the father, as were the slaves and other servants. It was the way of life throughout most of the Old Testament, religiously, legally, and culturally. However, it was not unique to Hebrew thought. With only minor variations, it characterized virtually every pagan culture of that day—including all Pre-Christian doctrine and practice.
While Scripture allowed this approach in Old Testament times, nowhere does the Bible ordain it. In the Hebrew nation, patriarchy seems to have evolved as an expression of male dominance and supremacy, and of a double standard that prevailed throughout much of the Old Testament. Its contemporary advocates insist that it is the only biblically valid model for marriage today. They argue that it was established at Creation, and thus is a firm, unalterable decree of God about the relative positions of men and women.
Biblical patriarchists see what they describe as a crisis of this era being what they term to be a systematic attack on the "timeless truths of biblical patriarchy". They believe such an attack includes the movement to "subvert the biblical model of the family, and redefine the very meaning of fatherhood and motherhood, masculinity, femininity, and the parent and child relationship." Arguing from the biblical presentation of God revealing himself "as masculine, not feminine", they believe God ordained distinct gender roles for man and woman as part of the created order. They say "Adam’s headship over Eve was established at the beginning, before sin entered the world". Their view is that the male has God-given authority and mandate to direct "his" household in paths of obedience to God. They refer to man's "dominion" beginning within the home, and a man's qualification to lead and ability to lead well in the public square is based upon his prior success in ruling his household.
Thus, William Einwechter refers to the traditional Complementarian view as "two-point Complementarianism" (male leadership in the family and church), and regards the biblical patriarchy view as "three-point" or "full" complementarianism (male leadership in family, church and society).
The patriarchists teach that "the woman was created as a helper to her husband, as the bearer of children, and as a "keeper at home", concluding that the God-ordained and proper sphere of dominion for a wife is the household. Biblical patriarchists consider that "faithfulness to Christ requires that (Biblical patriarchy) be believed, taught, and lived". They claim that the "man is...the image and glory of God in terms of authority, while the woman is the glory of man". They teach that a wife is to be obedient to her "head" (husband), based upon Old Testament teachings and models.
See Christian feminism | [
{
"paragraph_id": 0,
"text": "From the earliest days of the Christian faith, Christians have viewed marriage as a divinely blessed, lifelong, monogamous union between a man and a woman. However, while many Christians might agree with the traditional definition, the terminology and theological views of marriage have varied through time in different countries, and among Christian denominations.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Many Protestants consider marriage to be a sacred institution or \"holy ordinance\" of God. Catholic and Eastern Orthodox Christians consider marriage as a holy sacrament or sacred mystery. However, there have been differing attitudes among denominations and individual Christians towards not only the concept of Christian marriage, but also concerning divorce, remarriage, gender roles, family authority (the \"headship\" of the husband), the legal status of married women, birth control, marriageable age, cousin marriage, marriage of in-laws, interfaith marriage, same-sex marriage, and polygamy, among other topics, so that in the 21st century there cannot be said to be a single, uniform, worldwide view of marriage among all who profess to be Christians.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Christian teaching has never held that marriage is necessary for everyone; for many centuries in Western Europe, priestly or monastic celibacy was valued as highly as, if not higher than, marriage. Christians who did not marry were expected to refrain from all sexual activity, as were those who took holy orders or monastic vows.",
"title": ""
},
{
"paragraph_id": 3,
"text": "In some Western countries, a separate and secular civil wedding ceremony is required for recognition by the state, while in other Western countries, couples must merely obtain a marriage license from a local government authority and can be married by Christian or other clergy if they are authorized by law to conduct weddings. In this case, the state recognizes the religious marriage as a civil marriage as well; and Christian couples married in this way have all the rights of civil marriage, including, for example, divorce, even if their church forbids divorce.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Christians believe that marriage is considered in its ideal according to the purpose of God, and that at the heart of God's design for marriage is companionship and intimacy.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 5,
"text": "The biblical picture of marriage expands into something much broader, with the husband and wife relationship illustrating the relationship between Christ and the church.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 6,
"text": "It is also considered in its actual occurrence, sometimes involving failure. Therefore, the Bible speaks on the subject of divorce. The New Testament recognizes a place for singleness. Salvation within Christianity is not dependent on the continuation of a biological lineage.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 7,
"text": "Christians interpret the Genesis creation account as telling the story of when God instituted marriage, which they hold to have taken place after the creation of the first woman, Eve, from Adam, the first man.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 8,
"text": "The Lord God said, \"It is not good for the man to be alone. I will make a helper suitable for him.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 9,
"text": "Now the Lord God had formed out of the ground all the wild animals and all the birds in the sky. He brought them to the man to see what he would name them; and whatever the man called each living creature, that was its name. So the man gave names to all the livestock, the birds in the sky and all the wild animals.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 10,
"text": "But for Adam no suitable helper was found. So the Lord God caused the man to fall into a deep sleep; and while he was sleeping, he took one of the man's ribs and then closed up the place with flesh. Then the Lord God made a woman from the rib he had taken out of the man, and he brought her to the man.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 11,
"text": "The man said,",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 12,
"text": "\"This is now bone of my bones and flesh of my flesh; she shall be called 'woman,' for she was taken out of man.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 13,
"text": "That is why a man leaves his father and mother and is united to his wife, and they become one flesh.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 14,
"text": "Polygyny, or men having multiple wives at once, is one of the most common marital arrangements represented in the Old Testament, yet scholars doubt that it was common among average Israelites because of the wealth needed to practice it. Both the biblical patriarchs and kings of Israel are described as engaged in polygamous relationships. Despite the various polygynous relationships in the Bible, Old Testament scholar Peter Gentry has said that it does not mean that God condones polygyny. He also made note of the various problems that polygynous relationships present with the examples of Abraham, Jacob, David, and Solomon in the Bible. Alternatively, this could be a case of graded absolutism.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 15,
"text": "Betrothal (erusin), which is merely a binding promise to get married, is distinct from marriage itself (nissu'in), with the time between these events varying substantially. Nonetheless, when a couple is betrothed, they are held accountable to the laws against adultery, like an officially married couple. From this, it is implied that a couple is considered to be married even they have only been betrothed. Since a wife was regarded as property in biblical times, the betrothal (erusin) was effected simply by purchasing her from her father (or guardian) (i.e. paying the bride price to the woman and her father); the woman's consent is not explicitly required by any biblical law. Nonetheless, in one Biblical story, Rebecca was asked whether she agreed to be married before the marriage took place. Additionally, according to French anthropologist Philippe Rospabé, the payment of the bride price does not entail the purchase of a woman, as was thought in the early twentieth century. Instead, it is a purely symbolic gesture acknowledging (but never paying off) the husband's permanent debt to the wife's parents.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 16,
"text": "Like the adjacent Arabic culture (in the pre-Islamic period), the act of marriage appears mainly to have consisted of the groom fetching the bride, although among the Israelites the procession was a festive occasion, accompanied by music, dancing, and lights. To celebrate the marriage, week-long feasts were sometimes held.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 17,
"text": "In Old Testament times, a wife was submissive to her husband, which may interpreted as Israelite society viewing wives as the chattel of husbands. The descriptions of the Bible suggest that she would be expected to perform tasks such as spinning, sewing, weaving, manufacture of clothing, fetching of water, baking of bread, and animal husbandry. However, wives were usually looked after with care, and bigamous men were expected to ensure that they give their first wife food, clothing, and sexual activity.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 18,
"text": "Since a wife was regarded as property, her husband was originally free to divorce her with little restriction, at any time. A divorced couple could get back together unless the wife had married someone else after her divorce.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 19,
"text": "The Bible clearly addresses marriage and divorce. Those in troubled marriages are encouraged to seek counseling and restoration because, according to some advocates of traditional marriage ethics, most divorces are neither necessary nor unavoidable.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 20,
"text": "\"Have you not read that at the beginning the Creator made them male and female, and said, \"For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh\"? So they are no longer two, but one. Therefore, what God has joined together, let no one separate.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 21,
"text": "In the gospels of both Matthew and Mark, Jesus appealed to God's will in creation. He builds upon the narratives in where male and female are created together and for one another. Thus Jesus takes a firm stance on the permanence of marriage in the original will of God. This corresponds closely with the position of the Pharisee school of thought led by Shammai, at the start of the first millennium, with which Jesus would have been familiar. By contrast, Rabbinic Judaism subsequently took the opposite view, espoused by Hillel, the leader of the other major Pharisee school of thought at the time; in Hillel's view, men were allowed to divorce their wives for any reason.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 22,
"text": "Some hold that marriage vows are unbreakable, so that even in the distressing circumstances in which a couple separates, they are still married from God's point of view. This is the Roman Catholic church's position, although occasionally the church will declare a marriage to be \"null\" (in other words, it never really was a marriage). William Barclay (1907-1978) has written:",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 23,
"text": "There is no time in history when the marriage bond stood in greater peril of destruction than in the days when Christianity first came into this world. At that time the world was in danger of witnessing the almost total break-up of marriage and the collapse of the home... Theoretically no nation ever had a higher ideal of marriage than the Jews had. The voice of God had said, \"I hate divorce\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 24,
"text": "Jesus brought together two passages from Genesis, reinforcing the basic position on marriage found in Jewish scripture. Thus, he implicitly emphasized that it is God-made (\"God has joined together\"), \"male and female,\" lifelong (\"let no one separate\"), and monogamous (\"a man...his wife\").",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 25,
"text": "Jesus used the image of marriage and the family to teach the basics about the Kingdom of God. He inaugurated his ministry by blessing the wedding at Cana. In the Sermon on the Mount he set forth a new commandment concerning marriage, teaching that lustful looking constitutes adultery. He also superseded a Mosaic Law allowing divorce with his teaching that \"anyone who divorces his wife, except for sexual immorality (Greek porneia), causes her to become an adulteress, and anyone who marries the divorced woman commits adultery\". Similar Pauline teachings are found in 1 Corinthians 7. The exception clause—\"except for\"—uses the Greek word porneia which is variously translated \"fornication\" (KJV), \"marital unfaithfulness\" (NIV 1984), \"sexual immorality\" (NIV 2011), \"unchastity\" (RSV), et al. The KJV New Testament Greek Lexicon, KJV says porneia includes a variety of sexual \"deviations\" to include \"illicit sexual intercourse, adultery, fornication, homosexuality, lesbianism, intercourse with animals, etc., sexual intercourse with close relatives....\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 26,
"text": "Theologian Frank Stagg says that manuscripts disagree as to the presence in the original text of the phrase \"except for fornication\". Stagg writes: \"Divorce always represents failure...a deviation from God's will.... There is grace and redemption where there is contrition and repentance.... There is no clear authorization in the New Testament for remarriage after divorce.\" Stagg interprets the chief concern of Matthew 5 as being \"to condemn the criminal act of the man who divorces an innocent wife.... Jesus was rebuking the husband who victimizes an innocent wife and thinks that he makes it right with her by giving her a divorce\". He points out that Jesus refused to be trapped by the Pharisees into choosing between the strict and liberal positions on divorce as held at the time in Judaism. When they asked him, \"Is it lawful for a man to divorce his wife for any cause?\" he answered by reaffirming God's will as stated in Genesis, that in marriage husband and wife are made \"one flesh\", and what God has united man must not separate.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 27,
"text": "There is no evidence that Jesus himself ever married, and considerable evidence that he remained single. In contrast to Judaism and many other traditions, he taught that there is a place for voluntary singleness in Christian service. He believed marriage could be a distraction from an urgent mission, that he was living in a time of crisis and urgency where the Kingdom of God would be established where there would be no marriage nor giving in marriage:",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 28,
"text": "\"I tell you the truth,\" Jesus said to them, \"no one who has left home or wife or brothers or parents or children for the sake of the kingdom of God will fail to receive many times as much in this age and, in the age to come, eternal life.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 29,
"text": "In Matthew 22, Jesus is asked about the continuing state of marriage after death and he affirms that at the resurrection \"people neither marry nor be given in marriage; they are like the angels in heaven.\".",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 30,
"text": "The Apostle Paul quoted passages from Genesis almost verbatim in two of his New Testament books. He used marriage not only to describe the kingdom of God, as Jesus had done, but to define also the nature of the 1st-century Christian church. His theological view was a Christian development of the Old Testament parallel between marriage and the relationship between God and Israel. He analogized the church as a bride and Christ as the bridegroom─drawing parallels between Christian marriage and the relationship between Christ and the Church.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 31,
"text": "There is no hint in the New Testament that Jesus was ever married, and no clear evidence that Paul was ever married. However, both Jesus and Paul seem to view marriage as a legitimate calling from God for Christians. Paul elevates singleness to that of the preferable position, but does offer a caveat suggesting this is \"because of the impending crisis\"—which could itself extend to present times (see also Pauline privilege). Paul's primary issue was that marriage adds concerns to one's life that detract from their ability to serve God without distraction.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 32,
"text": "Some scholars have speculated that Paul may have been a widower since prior to his conversion to Christianity he was a Pharisee and member of the Sanhedrin, positions in which the social norm of the day required the men to be married. But it is just as likely that he never married at all.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 33,
"text": "Yet, Paul acknowledges the mutuality of marital relations, and recognizes that his own singleness is \"a particular gift from God\" that others may not necessarily have. He writes: \"Now to the unmarried and the widows I say: It is good for them to stay unmarried, as I am. But if they cannot control themselves, they should marry, for it is better to marry than to burn with passion.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 34,
"text": "Paul indicates that bishops, deacons, and elders must be \"husbands of one wife\", and that women must have one husband. This is usually understood to legislate against polygamy rather than to require marriage:",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 35,
"text": "Now the overseer (bishop) is to be above reproach, faithful to his wife, temperate, self-controlled, respectable, hospitable, able to teach, not given to drunkenness, not violent but gentle, not quarrelsome, not a lover of money.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 36,
"text": "A deacon must be faithful to his wife and must manage his children and his household well.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 37,
"text": "The reason I left you in Crete was that you might put in order what was left unfinished and appoint (or ordain) elders in every town, as I directed you. An elder must be blameless, faithful to his wife, a man whose children believe and are not open to the charge of being wild and disobedient.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 38,
"text": "In the Roman Age, female widows who did not remarry were considered more pure than those who did. Such widows were known as one man woman (enos andros gune) in the epistles of Paul. Paul writes:",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 39,
"text": "No widow may be put on the list of widows unless she is over sixty, has been faithful to her husband, and is well known for her good deeds, such as bringing up children, showing hospitality, washing the feet of the Lord’s people, helping those in trouble and devoting herself to all kinds of good deeds\".",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 40,
"text": "Paul allowed widows to remarry. Paul says that only one-man women older than 60 years can make the list of Christian widows who did special tasks in the community, but that younger widows should remarry to hinder sin.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 41,
"text": "Building on what they saw the example of Jesus and Paul advocating, some early Church Fathers placed less value on the family and saw celibacy and freedom from family ties as a preferable state.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 42,
"text": "Nicene Fathers such as Augustine believed that marriage was a sacrament because it was a symbol used by Paul to express Christ's love of the Church. However, there was also an apocalyptic dimension in his teaching, and he was clear that if everybody stopped marrying and having children that would be an admirable thing; it would mean that the Kingdom of God would return all the sooner and the world would come to an end. Such a view reflects the Manichaean past of Augustine.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 43,
"text": "While upholding the New Testament teaching that marriage is \"honourable in all and the bed undefiled,\" Augustine believed that \"yet, whenever it comes to the actual process of generation, the very embrace which is lawful and honourable cannot be effected without the ardour of lust...This is the carnal concupiscence, which, while it is no longer accounted sin in the regenerate, yet in no case happens to nature except from sin.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 44,
"text": "Both Tertullian and Gregory of Nyssa were church fathers who were married. They each stressed that the happiness of marriage was ultimately rooted in misery. They saw marriage as a state of bondage that could only be cured by celibacy. They wrote that at the very least, the virgin woman could expect release from the \"governance of a husband and the chains of children.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 45,
"text": "Tertullian argued that second marriage, having been freed from the first by death,\"will have to be termed no other than a species of fornication,\" partly based on the reasoning that this involves desiring to marry a woman out of sexual ardor, which a Christian convert is to avoid.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 46,
"text": "Also advocating celibacy and virginity as preferable alternatives to marriage, Jerome wrote: \"It is not disparaging wedlock to prefer virginity. No one can make a comparison between two things if one is good and the other evil.\" On First Corinthians 7:1 he reasons, \"It is good, he says, for a man not to touch a woman. If it is good not to touch a woman, it is bad to touch one: for there is no opposite to goodness but badness. But if it be bad and the evil is pardoned, the reason for the concession is to prevent worse evil.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 47,
"text": "St. John Chrysostom wrote: \"...virginity is better than marriage, however good.... Celibacy is...an imitation of the angels. Therefore, virginity is as much more honorable than marriage, as the angel is higher than man. But why do I say angel? Christ, Himself, is the glory of virginity.\"",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 48,
"text": "Cyprian, Bishop of Carthage, said that the first commandment given to men was to increase and multiply, but now that the earth was full there was no need to continue this process of multiplication.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 49,
"text": "This view of marriage was reflected in the lack of any formal liturgy formulated for marriage in the early Church. No special ceremonial was devised to celebrate Christian marriage—despite the fact that the Church had produced liturgies to celebrate the Eucharist, Baptism and Confirmation. It was not important for a couple to have their nuptials blessed by a priest. People could marry by mutual agreement in the presence of witnesses.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 50,
"text": "At first, the old Roman pagan rite was used by Christians, although modified superficially. The first detailed account of a Christian wedding in the West dates from the 9th century. This system, known as Spousals, persisted after the Reformation.",
"title": "Biblical foundations and history"
},
{
"paragraph_id": 51,
"text": "Today all Christian denominations regard marriage as a sacred institution, a covenant. Roman Catholics consider it to be a sacrament. Marriage was officially recognized as a sacrament at the 1184 Council of Verona. Before then, no specific ritual was prescribed for celebrating a marriage: \"Marriage vows did not have to be exchanged in a church, nor was a priest's presence required. A couple could exchange consent anywhere, anytime.\"",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 52,
"text": "In the decrees on marriage of the Council of Trent (twenty-fourth session from 1563), the validity of marriage was made dependent upon the wedding taking place before a priest and two witnesses, although the lack of a requirement for parental consent ended a debate that had proceeded from the 12th century. In the case of a divorce, the right of the innocent party to marry again was denied so long as the other party was alive, even if the other party had committed adultery.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 53,
"text": "The Catholic Church allowed marriages to take place inside churches only starting with the 16th century, beforehand religious marriages happened on the porch of the church.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 54,
"text": "The Roman Catholic Church teaches that God himself is the author of the sacred institution of marriage, which is His way of showing love for those He created. Marriage is a divine institution that can never be broken, even if the husband or wife legally divorce in the civil courts; as long as they are both alive, the Church considers them bound together by God. Holy Matrimony is another name for sacramental marriage. Marriage is intended to be a faithful, exclusive, lifelong union of a man and a woman. Committing themselves completely to each other, a Catholic husband and wife strive to sanctify each other, bring children into the world, and educate them in the Catholic way of life. Man and woman, although created differently from each other, complement each other. This complementarity draws them together in a mutually loving union.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 55,
"text": "The valid marriage of baptized Christians is one of the seven Roman Catholic sacraments. The sacrament of marriage is the only sacrament that a priest does not administer directly; a priest, however, is the chief witness of the husband and wife's administration of the sacrament to each other at the wedding ceremony in a Catholic church.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 56,
"text": "The Roman Catholic Church views that Christ himself established the sacrament of marriage at the wedding feast of Cana; therefore, since it is a divine institution, neither the Church nor state can alter the basic meaning and structure of marriage. Husband and wife give themselves totally to each other in a union that lasts until death.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 57,
"text": "Priests are instructed that marriage is part of God's natural law and to support the couple if they do choose to marry. Today it is common for Roman Catholics to enter into a \"mixed marriage\" between a Catholic and a baptized non-Catholic. Couples entering into a mixed marriage are usually allowed to marry in a Catholic church provided their decision is of their own accord and they intend to remain together for life, to be faithful to each other, and to have children which are brought up in the Catholic faith.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 58,
"text": "In Roman Catholic teaching, marriage has two objectives: the good of the spouses themselves, and the procreation and education of children (1983 code of canon law, c.1055; 1994 catechism, par.2363). Hence \"entering marriage with the intention of never having children is a grave wrong and more than likely grounds for an annulment.\" It is normal procedure for a priest to ask the prospective bride and groom about their plans to have children before officiating at their wedding. The Roman Catholic Church may refuse to marry anyone unwilling to have children, since procreation by \"the marriage act\" is a fundamental part of marriage. Thus usage of any form of contraception, in vitro fertilization, or birth control besides natural family planning is a grave offense against the sanctity of marriage and ultimately against God.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 59,
"text": "Most Protestant denominations hold marriage to be ordained by God for the union between a man and a woman. They see the primary purposes of this union as intimate companionship, rearing children and mutual support for both husband and wife to fulfill their life callings. Protestant Christian denominations consider marital sexual pleasure to be a gift of God, though they vary on their position on birth control, ranging from the acceptance of the use of contraception to only allowing natural family planning to teaching Quiverfull doctrine—that birth control is sinful and Christians should have large families. Conservative Protestants consider marriage a solemn covenant between wife, husband and God. Most view sexual relations as appropriate only within a marriage. Protestant Churches discourage divorce though the way it is addressed varies by denomination; for example, the Reformed Church in America permits divorce and remarriage, while connexions such as the Evangelical Methodist Church Conference forbid divorce except in the case of fornication and do not allow for remarriage in any circumstance.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 60,
"text": "Many Methodist Christians teach that marriage is \"God's gift and covenant intended to imitate God's covenant with humankind\" that \"Christians enter in their baptism.\" For example, the rite used in the Free Methodist Church proclaims that marriage is \"more than a legal contract, being a bond of union made in heaven, into which you enter discreetly and reverently.\"",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 61,
"text": "Roles and responsibilities of husband and wives now vary considerably on a continuum between the long-held male dominant/female submission view and a shift toward equality (without sameness) of the woman and the man. There is considerable debate among many Christians today—not just Protestants—whether equality of husband and wife or male headship is the biblically ordained view, and even if it is biblically permissible. The divergent opinions fall into two main groups: Complementarians (who call for husband-headship and wife-submission) and Christian Egalitarians (who believe in full partnership equality in which couples can discover and negotiate roles and responsibilities in marriage).",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 62,
"text": "There is no debate that Ephesians 5 presents a historically benevolent husband-headship/wife-submission model for marriage. The questions are (a) how these New Testament household codes are to be reconciled with the calls earlier in Chapter 5 (cf. verses 1, 18, 21) for mutual submission among all believers, and (b) the meaning of \"head\" in v.23. It is important to note that verse 22 contains no verb in the original manuscripts, which were also not divided into verses: Ephesians 5 (NIV)",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 63,
"text": "In the Eastern Orthodox Church, marriage is treated as a Sacred Mystery (sacrament), and as an ordination. It serves to unite a woman and a man in eternal union before God. It refers to the 1st centuries of the church, where spiritual union of spouses in the first sacramental marriage was eternal. Therefore, it is considered a martyrdom as each spouse learns to die to self for the sake of the other. Like all Mysteries, Orthodox marriage is more than just a celebration of something which already exists: it is the creation of something new, the imparting to the couple of the grace which transforms them from a 'couple' into husband and wife within the Body of Christ.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 64,
"text": "Marriage is an icon (image) of the relationship between Jesus and the Church. This is somewhat akin to the Old Testament prophets' use of marriage as an analogy to describe the relationship between God and Israel. Marriage is the simplest, most basic unity of the church: a congregation where \"two or three are gathered together in Jesus' name.\" The home is considered a consecrated space (the ritual for the Blessing of a House is based upon that of the Consecration of a Church), and the husband and wife are considered the ministers of that congregation. However, they do not \"perform\" the Sacraments in the house church; they \"live\" the Sacrament of Marriage. Because marriage is considered to be a pilgrimage wherein the couple walk side by side toward the Kingdom of Heaven, marriage to a non-Orthodox partner is discouraged, though it may be permitted.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 65,
"text": "Unlike Western Christianity, Eastern Christians do not consider the sacramental aspect of the marriage to be conferred by the couple themselves. Rather, the marriage is conferred by the action of the Holy Spirit acting through the priest. Furthermore, no one besides a bishop or priest—not even a deacon—may perform the Sacred Mystery.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 66,
"text": "The external sign of the marriage is the placing of wedding crowns upon the heads of the couple, and their sharing in a \"Common Cup\" of wine. Once crowned, the couple walk a circle three times in a ceremonial \"dance\" in the middle of the church, while the choir intones a joyous three-part antiphonal hymn, \"Dance, Isaiah\"",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 67,
"text": "The sharing of the Common Cup symbolizes the transformation of their union from a common marriage into a sacred union. The wedding is usually performed after the Divine Liturgy at which the couple receives Holy Communion. Traditionally, the wedding couple would wear their wedding crowns for eight days, and there is a special prayer said by the priest at the removal of the crowns.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 68,
"text": "Divorce is discouraged. Sometimes out of economia (mercy) a marriage may be dissolved if there is no hope whatever for a marriage to fulfill even a semblance of its intended sacramental character. The standard formula for remarriage is that the Orthodox Church joyfully blesses the first marriage, merely performs the second, barely tolerates the third, and invariably forbids the fourth. \"On the basis of the ideal of the first marriage as an image of the glory of God the question is which significance such a second marriage has and whether it can be regarded as Mysterion. Even though there are opinions (particularly in the west) which deny the sacramental character to the second marriage, in the orthodox literature almost consistently either a reduced or even a full sacramentality is attributed to it. The investigation of the second marriage rite shows that both positions affirming the sacramentality to a second marriage can be justified.\"",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 69,
"text": "Early church texts forbid marriage between an Orthodox Christian and a heretic or schismatic (which would include all non-Orthodox Christians). Traditional Orthodox Christians forbid mixed marriages with other denominations. More liberal ones perform them, provided that the couple formally commit themselves to rearing their children in the Orthodox faith.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 70,
"text": "All people are called to celibacy—human beings are all born into virginity, and Orthodox Christians are expected by Sacred Tradition to remain in that state unless they are called into marriage and that call is sanctified. The church blesses two paths on the journey to salvation: monasticism and marriage. Mere celibacy, without the sanctification of monasticism, can fall into selfishness and tends to be regarded with disfavour by the Church.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 71,
"text": "Orthodox priests who serve in parishes are usually married. They must marry prior to their ordination. If they marry after they are ordained they are not permitted to continue performing sacraments. If their wife dies, they are forbidden to remarry; if they do, they may no longer serve as a priest. A married man may be ordained as a priest or deacon. However, a priest or deacon is not permitted to enter into matrimony after ordination. Bishops must always be monks and are thus celibate. However, if a married priest is widowed, he may receive monastic tonsure and thus become eligible for the episcopate.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 72,
"text": "The Eastern Orthodox Church believes that marriage is an eternal union of spouses, but in Heaven there will not be a procreative bond of marriage.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 73,
"text": "The Non-Chalcedonian Churches of Oriental Orthodoxy hold views almost identical to those of the (Chalcedonian) Eastern Orthodox Church. The Coptic Orthodox Church allows second marriages only in cases of adultery or death of spouse.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 74,
"text": "In the teachings of the Church of Jesus Christ of Latter-day Saints (LDS Church), celestial (or eternal) marriage is a covenant between a man, a woman, and God performed by a priesthood authority in a temple of the church. Celestial marriage is intended to continue forever into the afterlife if the man and woman do not break their covenants. Thus, eternally married couples are often referred to as being \"sealed\" to each other. Sealed couples who keep their covenants are also promised to have their posterity sealed to them in the afterlife. (Thus, \"families are forever\" is a common phrase in the LDS Church.) A celestial marriage is considered a requirement for exaltation.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 75,
"text": "In some countries, celestial marriages can be recognized as civil marriages; in other cases, couples are civilly married outside of the temple and are later sealed in a celestial marriage. (The church will no longer perform a celestial marriage for a couple unless they are first or simultaneously legally married.) The church encourages its members to be in good standing with it so that they may marry or be sealed in the temple. A celestial marriage is not annulled by a civil divorce: a \"cancellation of a sealing\" may be granted, but only by the First Presidency, the highest authority in the church. Civil divorce and marriage outside the temple carries somewhat of a stigma in the Mormon culture; the church teaches that the \"gospel of Jesus Christ—including repentance, forgiveness, integrity, and love—provides the remedy for conflict in marriage.\" Regarding marriage and divorce, the church instructs its leaders: \"No priesthood officer is to counsel a person whom to marry. Nor should he counsel a person to divorce his or her spouse. Those decisions must originate and remain with the individual. When a marriage ends in divorce, or if a husband and wife separate, they should always receive counseling from Church leaders.\"",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 76,
"text": "In church temples, members of the LDS Church perform vicarious celestial marriages for deceased couples who were legally married.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 77,
"text": "The New Church teaches that marital love (or \"conjugial love\") is \"the precious jewel of human life and the repository of the Christian religion\" because the love shared between a husband and a wife is the source of all peace and joy. Emanuel Swedenborg coined the term \"conjugial\" (rather than the more usual adjective in reference to marital union, \"conjugal\") to describe the special love experienced by married partners. When a husband and wife work together to build their marriage on earth, that marriage continues after the deaths of their bodies and they live as angels in heaven into eternity. Swedenborg claimed to have spoken with angelic couples who had been married for thousands of years. Those who never married in the natural world will, if they wish, find a spouse in heaven.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 78,
"text": "The Jehovah's Witnesses view marriage to be a permanent arrangement with the only possible exception being adultery. Divorce is strongly discouraged even when adultery is committed since the wronged spouse is free to forgive the unfaithful one. There are provisions for a domestic separation in the event of \"failure to provide for one's household\" and domestic violence, or spiritual resistance on the part of a partner. Even in such situations though divorce would be considered grounds for loss of privileges in the congregation. Remarrying after death or a proper divorce is permitted. Marriage is the only situation where any type of sexual interaction is acceptable, and even then certain restrictions apply to acts such as oral and anal sex. Married persons who are known to commit such acts may in fact lose privileges in the congregation as they are supposed to be setting a good example to the congregation.",
"title": "Denominational beliefs and practice"
},
{
"paragraph_id": 79,
"text": "In Christianity, an interdenominational marriage (also known as an ecumenical marriage) is a marriage between two baptized Christians who belong to different Christian denominations, e.g. a wedding between a Lutheran Christian man and a Catholic Christian woman. Nearly all Christian denominations permit interdenominational marriages.",
"title": "Interdenominational marriage"
},
{
"paragraph_id": 80,
"text": "In Methodism, ¶81 of the 2014 Discipline of the Allegheny Wesleyan Methodist Connection, states with regard to interdenominational marriages: \"We do not prohibit our people from marrying persons who are not of our connection, provided such persons have the form and are seeking the power of godliness; but we are determined to discourage their marrying persons who do not come up to this description.\"",
"title": "Interdenominational marriage"
},
{
"paragraph_id": 81,
"text": "The Catholic Church recognizes as sacramental, (1) the marriages between two baptized Protestants or between two baptized Orthodox Christians, as well as (2) marriages between baptized non-Catholic Christians and Catholic Christians, although in the latter case, consent from the diocesan bishop must be obtained, with this being termed \"permission to enter into a mixed marriage\". To illustrate (1), for example, \"if two Lutherans marry in the Lutheran Church in the presence of a Lutheran minister, the Catholic Church recognizes this as a valid sacrament of marriage.\" Weddings in which both parties are Catholic Christians are ordinarily held in a Catholic church, while weddings in which one party is a Catholic Christian and the other party is a non-Catholic Christian can be held in a Catholic church or a non-Catholic Christian church.",
"title": "Interdenominational marriage"
},
{
"paragraph_id": 82,
"text": "In Christianity, an interfaith marriage is a marriage between a baptized Christian and a non-baptized person, e.g. a wedding between a Christian man and Jewish woman.",
"title": "Interreligious marriage"
},
{
"paragraph_id": 83,
"text": "In the Presbyterian Church (USA), the local church congregation is tasked with supporting and including an interfaith couple with one being a baptized Presbyterian Christian and the other being a non-Christian, in the life of the Church, \"help[ing] parents make and live by commitments about the spiritual nurture of their children\", and being inclusive of the children of the interfaith couple. The pastor is to be available to help and counsel the interfaith couple in their life journey.",
"title": "Interreligious marriage"
},
{
"paragraph_id": 84,
"text": "Although the Catholic Church recognizes as natural marriages weddings between two non-Christians or those between a Catholic Christian and a non-Christian, these are not considered to be sacramental, and in the latter case, the Catholic Christian must seek permission from his/her bishop for the marriage to occur; this permission is known as \"dispensation from disparity of cult\".",
"title": "Interreligious marriage"
},
{
"paragraph_id": 85,
"text": "In Methodist Christianity, the 2014 Discipline of the Allegheny Wesleyan Methodist Connection discourages interfaith marriages, stating \"Many Christians have married unconverted persons. This has produced bad effects; they have either been hindered for life, or have turned back to perdition.\" Though the United Methodist Church authorizes its clergy to preside at interfaith marriages, it notes that Corinthians 6 has been interpreted \"as at least an ideal if not an absolute ban on such [interfaith] marriages as an issue of scriptural faithfulness, if not as an issue of Christian survival.\" At the same time, for those already in an interfaith marriage (including cases in which there is a non-Christian couple and one party converts to Christianity after marriage), the Church notes that Saint Paul \"addresses persons married to unbelievers and encourages them to stay married.\"",
"title": "Interreligious marriage"
},
{
"paragraph_id": 86,
"text": "Anglican denominations such as the Episcopal Church in United States the Anglican Church of Canada, the Anglican Church in Aotearoa, New Zealand and Polynesia, the Anglican Episcopal Church of Brazil, the Scottish Episcopal Church in Scotland and mainline Protestant denominations such as the United Church of Christ, the United Church of Canada, the Metropolitan Community Church, the Presbyterian Church (USA), the Quakers, the United Reformed Church in United Kingdom, the Church of Scotland, the Methodist Church of Great Britain, the Church of Iceland, the Church of Sweden, the Church of Denmark, the Church of Norway, the United Protestant Church in Belgium, the Protestant Church in Baden, the Evangelical Church in Berlin, Brandenburg and Silesian Upper Lusatia, the Evangelical Church of Bremen, the Evangelical Lutheran Church in Brunswick, the Evangelical Church of Hesse Electorate-Waldeck, the Evangelical Lutheran Church in Oldenburg, the Evangelical Lutheran Church of Hanover, the Church of Lippe, the Evangelical Reformed Church in Bavaria and Northwestern Germany, the Evangelical Church in the Rhineland, the Protestant Church in Hesse and Nassau, the Evangelical Lutheran Church in Northern Germany the Protestant Church of the Palatinate, the Evangelical Church of Westphalia, the Mennonite Church in the Netherlands the United Protestant Church of France, the Catholic Diocese of the Old Catholics in Germany, the Christian Catholic Church of Switzerland, some Reformed churches in Federation of Swiss Protestant Churches for example the Reformed Church of Aargau, the Protestant Church of Geneva or the Evangelical Reformed Church of the Canton of Zürich and some non-trinitarian denominations such as the Unity Church and the Unitarians, some international evangelical denominations, such as the Association of Welcoming and Affirming Baptists and Affirming Pentecostal Church International perform weddings between same-sex couples.",
"title": "Same-sex marriage"
},
{
"paragraph_id": 87,
"text": "The Evangelical Lutheran Church of America, the Evangelical Lutheran Church in Canada, some Lutheran and united churches in Evangelical Church in Germany, some Reformed churches in Federation of Swiss Protestant Churches, and the Protestant Church in the Netherlands do not administer sacramental marriage to same-sex couples, but blesses same-sex unions through the use of a specific liturgy.",
"title": "Same-sex marriage"
},
{
"paragraph_id": 88,
"text": "The Catholic Church, Eastern Orthodox Church, and other more conservative Protestant denominations do not perform or recognize same-sex marriage because they do not consider it as marriage at all, and considering any homosexual sexual activity to be sinful. The Global Anglican Future Conference (GAFCON) consisting of the Church of Nigeria, Anglican Church of Kenya, Anglican Church of Tanzania, Rwanda and Uganda; Anglican Church of South America, Australia, parts of England, Canada, USA and Church of India through the Jerusalem Conference clearly asserted \"the unchangeable standard of Christian marriage between one man and one woman as the proper place for sexual intimacy.\"",
"title": "Same-sex marriage"
},
{
"paragraph_id": 89,
"text": "With respect to religion, historic Christian belief emphasizes that Christian weddings should occur in a church as Christian marriage should begin where one also starts their faith journey (Christians receive the sacrament of baptism in church in the presence of their congregation). Catholic Christian weddings must \"take place in a church building\" as holy matrimony is a sacrament; sacraments normatively occur in the presence of Christ in the house of God, and \"members of the faith community [should be] present to witness the event and provide support and encouragement for those celebrating the sacrament.\" Bishops never grant permission \"to those requesting to be married in a garden, on the beach, or some other place outside of the church\" and a dispensation is only granted \"in extraordinary circumstances (for example, if a bride or groom is ill or disabled and unable to come to the church).\" Marriage in the church, for Christians, is seen as contributing to the fruit of the newlywed couple regularly attending church each Lord's Day and raising children in the faith.",
"title": "Location of the wedding"
},
{
"paragraph_id": 90,
"text": "Christians seek to uphold the seriousness of wedding vows. Yet, they respond with compassion to deep hurts by recognizing that divorce, though less than the ideal, is sometimes necessary to relieve one partner of intolerable hardship, unfaithfulness or desertion. While the voice of God had said, \"I hate divorce\", some authorities believe the divorce rate in the church is nearly comparable to that of the culture at large.",
"title": "Theological views"
},
{
"paragraph_id": 91,
"text": "Christians today hold three competing views as to what is the biblically ordained relationship between husband and wife. These views range from Christian egalitarianism that interprets the New Testament as teaching complete equality of authority and responsibility between the man and woman in marriage, all the way to Patriarchy that calls for a \"return to complete patriarchy\" in which relationships are based on male-dominant power and authority in marriage:",
"title": "Theological views"
},
{
"paragraph_id": 92,
"text": "1. Christian Egalitarians believe in an equal partnership of the wife and husband with neither being designated as the leader in the marriage or family. Instead, the wife and husband share a fully equal partnership in both their marriage and in the family. Its proponents teach \"the fundamental biblical principle of the equality of all human beings before God\".",
"title": "Theological views"
},
{
"paragraph_id": 93,
"text": "\"There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus.\"",
"title": "Theological views"
},
{
"paragraph_id": 94,
"text": "According to this principle, there can be no moral or theological justification for permanently granting or denying status, privilege, or prerogative solely on the basis of a person's race, class, or gender.",
"title": "Theological views"
},
{
"paragraph_id": 95,
"text": "2. Christian Complementarians prescribe husband-headship—a male-led hierarchy. This view's core beliefs call for a husband's \"loving, humble headship\" and the wife's \"intelligent, willing submission\" to his headship. They believe women have \"different but complementary roles and responsibilities in marriage\".",
"title": "Theological views"
},
{
"paragraph_id": 96,
"text": "3. Biblical patriarchy, though not at all popular among mainstream Christians, prescribes a strict male-dominant hierarchy. A very strong view makes the husband the ruler over his wife and his household. Their organization's first tenet is that \"God reveals Himself as masculine, not feminine. God is the eternal Father and the eternal Son, the Holy Spirit is also addressed as He, and Jesus Christ is a male\". They consider the husband-father to be sovereign over his household—the family leader, provider, and protector. They call for a wife to be obedient to her head (her husband).",
"title": "Theological views"
},
{
"paragraph_id": 97,
"text": "Some Christian authorities permit the practice polygamy (specifically polygyny), but this practice, besides being illegal in Western cultures, is now considered to be out of the Christian mainstream in most parts of the globe; the Lutheran World Federation hosted a regional conference in Africa, in which the acceptance of polygamists and their wives into full membership by the Lutheran Church in Liberia was defended as being permissible. While the Lutheran Church in Liberia permits men to retain their wives if they married them prior to being received into the Church, it does not permit polygamists who have become Christians to marry more wives after they have received the sacrament of Holy Baptism.",
"title": "Theological views"
},
{
"paragraph_id": 98,
"text": "Much of the dispute hinges on how one interprets the New Testament household code (Haustafel), a term coined by Martin Luther, which has as its main focus hierarchical relationships between three pairs of social classes that were controlled by Roman law: husbands/wives, parents/children, and masters/slaves. The apostolic teachings, with variations, that constitute what has been termed the \"household code\" occurs in four epistles (letters) by the Apostle Paul and in 1 Peter.",
"title": "Theological views"
},
{
"paragraph_id": 99,
"text": "In the early Roman Republic, long before the time of Christ, the law of manus along with the concept of patria potestas (rule of the fathers), gave the husband nearly absolute autocratic power over his wife, children, and slaves, including the power of life and death. In practice, the extreme form of this right was seldom exercised, and it was eventually limited by law.",
"title": "Theological views"
},
{
"paragraph_id": 100,
"text": "Theologian Frank Stagg finds the basic tenets of the code in Aristotle's discussion of the household in Book 1 of Politics and in Philo's Hypothetica 7.14. Serious study of the New Testament Household Code (Haustafel) began with Martin Dilbelius in 1913, with a wide range of studies since then. In a Tübingen dissertation, by James E. Crouch concludes that the early Christians found in Hellenistic Judaism a code which they adapted and Christianized.",
"title": "Theological views"
},
{
"paragraph_id": 101,
"text": "The Staggs believe the several occurrences of the New Testament household code in the Bible were intended to meet the needs for order within the churches and in the society of the day. They maintain that the New Testament household code is an attempt by Paul and Peter to Christianize the concept of family relationships for Roman citizens who had become followers of Christ. The Staggs write that there is some suggestion in scripture that because Paul had taught that they had newly found freedom \"in Christ\", wives, children, and slaves were taking improper advantage of the Haustafel both in the home and the church. \"The form of the code stressing reciprocal social duties is traced to Judaism's own Oriental background, with its strong moral/ethical demand but also with a low view of woman.... At bottom is probably to be seen the perennial tension between freedom and order.... What mattered to (Paul) was 'a new creation' and 'in Christ' there is 'not any Jew not Greek, not any slave nor free, not any male and female'.",
"title": "Theological views"
},
{
"paragraph_id": 102,
"text": "Two of these Christianized codes are found in Ephesians 5 (which contains the phrases \"husband is the head of the wife\" and \"wives, submit to your husband\") and in Colossians 3, which instructs wives to subordinate themselves to their husbands.",
"title": "Theological views"
},
{
"paragraph_id": 103,
"text": "The importance of the meaning of \"head\" as used by the Apostle Paul is pivotal in the conflict between the Complementarian position and the Egalitarian view. The word Paul used for \"head\", transliterated from Greek, is kephalē. Today's English word \"cephalic\" (/səˈfælɪk/ sə-FAL-ik) stems from the Greek kephalē and means \"of or relating to the head; or located on, in, or near the head.\" A thorough concordance search by Catherine Kroeger shows that the most frequent use of \"head\" (kephalē) in the New Testament is to refer to \"the anatomical head of a body\". She found that its second most frequent use in the New Testament was to convey the metaphorical sense of \"source\". Other Egalitarian authors such as Margaret Howe agree with Kroeger, writing that \"The word 'head' must be understood not as 'ruler' but as 'source'\".",
"title": "Theological views"
},
{
"paragraph_id": 104,
"text": "Wayne Grudem criticizes commonly rendering kephalē in those same passages only to mean \"source\", and argues that it denotes \"authoritative head\" in such texts as Corinthians 11. They interpret that verse to mean that God the father is the authoritative head over the Son, and in turn Jesus is the authoritative head over the church, not simply its source. By extension, they then conclude that in marriage and in the church, the man is the authoritative head over the woman.",
"title": "Theological views"
},
{
"paragraph_id": 105,
"text": "Another potential way to define the word \"head\", and hence the relationship between husband and wife as found in the Bible, is through the example given in the surrounding context in which the word is found. In that context the husband and wife are compared to Christ and his church. The context seems to imply an authority structure based on a man sacrificing himself for his wife, as Christ did for the church; a love-based authority structure, where submission is not required but freely given based on the care given to the wife.",
"title": "Theological views"
},
{
"paragraph_id": 106,
"text": "Some biblical references on this subject are debated depending on one's school of theology. The historical grammatical method is a hermeneutic technique that strives to uncover the meaning of the text by taking into account not just the grammatical words, but also the syntactical aspects, the cultural and historical background, and the literary genre. Thus references to a patriarchal Biblical culture may or may not be relevant to other societies. What is believed to be a timeless truth to one person or denomination may be considered a cultural norm or minor opinion to another.",
"title": "Theological views"
},
{
"paragraph_id": 107,
"text": "Christian Egalitarians (from the French word \"égal\" meaning \"equal\") believe that Christian marriage is intended to be a marriage without any hierarchy—a full and equal partnership between the wife and husband. They emphasize that nowhere in the New Testament is there a requirement for a wife to obey her husband. While \"obey\" was introduced into marriage vows for much of the church during the Middle Ages, its only New Testament support is found in Peter 3, with that only being by implication from Sarah's obedience to Abraham. Scriptures such as Galatians 3:28 state that in Christ, right relationships are restored and in him, \"there is neither Jew nor Greek, slave nor free, male nor female.\"",
"title": "Theological views"
},
{
"paragraph_id": 108,
"text": "Christian Egalitarians interpret scripture to mean that God intended spouses to practice mutual submission, each in equality with the other. The phrase \"mutual submission\" comes from a verse in Ephesians 5 which precedes advice for the three domestic relationships of the day, including slavery. It reads, \"Submit to one another ('mutual submission') out of reverence for Christ\", wives to husbands, children to parents, and slaves to their master. Christian Egalitarians believe that full partnership in marriage is the most biblical view, producing the most intimate, wholesome, and reciprocally fulfilling marriages.",
"title": "Theological views"
},
{
"paragraph_id": 109,
"text": "The Christian Egalitarian view of marriage asserts that gender, in and of itself, neither privileges nor curtails a believer's gifting or calling to any ministry in the church or home. It does not imply that women and men are identical or undifferentiated, but affirms that God designed men and women to complement and benefit one another. A foundational belief of Christian Egalitarians is that the husband and wife are created equally and are ordained of God to \"become one\", a biblical principle first ordained by God in Genesis 2, reaffirmed by Jesus in Matthew 19 and Mark 10, and by the Apostle Paul in Ephesians 5. Therefore, they see that \"oneness\" as pointing to gender equality in marriage. They believe the biblical model for Christian marriages is therefore for the spouses to share equal responsibility within the family—not one over the other nor one under the other.",
"title": "Theological views"
},
{
"paragraph_id": 110,
"text": "David Dykes, theologian, author, and pastor of a 15,000-member Baptist church, sermonized that \"When you are in Christ, you have full equality with all other believers\". In a sermon he entitled \"The Ground Is Level at the Foot of the Cross\", he said that some theologians have called one particular Bible verse the Christian Magna Carta. The Bible verse reads: \"There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus.\" Acknowledging the differences between men and women, Dykes writes that \"in Christ, these differences don't define who we are. The only category that really matters in the world is whether you are in Christ. At the cross, Jesus destroyed all the made-made barriers of hostility:\" ethnicity, social status, and gender.",
"title": "Theological views"
},
{
"paragraph_id": 111,
"text": "The Galatians 3 passage comes after the apostle Paul tells us he would not submit to what was \"hypocritical\" to the Gospel. The apostle Peter had affirmed the truth of the Gospel regarding the Gentiles with his words, but his actions compromised it.",
"title": "Theological views"
},
{
"paragraph_id": 112,
"text": "Those of the egalitarian persuasion point to the biblical instruction that all Christian believers, irrespective of gender, are to submit or be subject \"to one another in the fear of God\" or \"out of reverence for Christ\". Gilbert Bilezikian writes that in the highly debated Ephesians 5 passage, the verb \"to be subject\" or \"to be submitted\" appears in verse 21 which he describes as serving as a \"hinge\" between two different sections. The first section consists of verses 18–20, verse 21 is the connection between the two, and the second section consists of verses 22–33. When discussion begins at verse 22 in Ephesians 5, Paul appears to be reaffirming a chain of command principle within the family. However,",
"title": "Theological views"
},
{
"paragraph_id": 113,
"text": "...when interpretation begins with verse 21, the entire passage describes mutual submission within the family. The wife submits to her husband in everything \"as unto the Lord.\" If her husband makes a request unworthy of her Lord, her primary loyalty is \"unto the Lord.\" ...Instruction about submission is four times longer for husbands than for wives. The greatest burden of submission is clearly placed on the husband.",
"title": "Theological views"
},
{
"paragraph_id": 114,
"text": "Advocates of Christian egalitarianism believe that this model has firm biblical support:",
"title": "Theological views"
},
{
"paragraph_id": 115,
"text": "The egalitarian paradigm leaves it up to the couple to decide who is responsible for what task or function in the home. Such decisions should be made rationally and wisely, not based on gender or tradition. Examples of a couple's decision logic might include:",
"title": "Theological views"
},
{
"paragraph_id": 116,
"text": "Complementarians hold to a hierarchical structure between husband and wife. They believe men and women have different gender-specific roles that allow each to complement the other, hence the designation \"Complementarians\". The Complementarian view of marriage holds that while the husband and wife are of equal worth before God, husbands and wives are given different functions and responsibilities by God that are based on gender, and that male leadership is biblically ordained so that the husband is always the senior authority figure. They state they \"observe with deep concern\" \"accompanying distortions or neglect of the glad harmony portrayed in Scripture between the intelligent, humble leadership of redeemed husbands and the loving, willing support of that leadership by redeemed wives\". They believe \"the Bible presents a clear chain of authority—above all authority and power is God; God is the head of Christ. Then in descending order, Christ is the head of man, man is the head of woman, and parents are the head of their children.\" Complementarians teach that God intended men to lead their wives as \"heads\" of the family. Wayne Grudem, in an article that interprets the \"mutual submission\" of Ephesians 5 as being hierarchical, writes that it means \"being considerate of one another, and caring for one another’s needs, and being thoughtful of one another, and sacrificing for one another.\"",
"title": "Theological views"
},
{
"paragraph_id": 117,
"text": "Scriptures such as 1 Corinthians 11:3: \"But I would have you know, that the head of every man is Christ; and the head of the woman is the man; and the head of Christ is God\", (KJV) is understood as meaning the wife is to be subject to her husband, if not unconditionally.",
"title": "Theological views"
},
{
"paragraph_id": 118,
"text": "According to Complementarian authors John Piper, Wayne Grudem, and others, historically, but to a significantly lesser extent in most of Christianity today, the predominant position in both Catholicism and conservative Protestantism places the male as the \"head\" in the home and in the church. They hold that women are commanded to be in subjection to male leadership, with a wife being obedient to her head (husband), based upon Old Testament precepts and principles. This view holds that, \"God has created men and women equal in their essential dignity and human personhood, but different and complementary in function with male headship in the home and in the Church.\"",
"title": "Theological views"
},
{
"paragraph_id": 119,
"text": "Grudem also acknowledges exceptions to the submission of wives to husbands where moral issues are involved. Rather than unconditional obedience, Complementarian authors such as Piper and Grudem are careful to caution that a wife's submission should never cause her to \"follow her husband into sin.\"",
"title": "Theological views"
},
{
"paragraph_id": 120,
"text": "Roman Catholic Church teaching on the role of women includes that of Pope Leo XIII in his 1880 encyclical Arcanum which states:",
"title": "Theological views"
},
{
"paragraph_id": 121,
"text": "The husband is the chief of the family and the head of the wife. The woman, because she is flesh of his flesh, and bone of his bone, must be subject to her husband and obey him; not, indeed, as a servant, but as a companion, so that her obedience shall be wanting in neither honor nor dignity. Since the husband represents Christ, and since the wife represents the Church, let there always be, both in him who commands and in her who obeys, a heaven-born love guiding both in their respective duties.\" This position was affirmed in the 1930 encyclical Casti Connubii, which invokes Ephesians 5:22, \"Let women be subject to their husbands as to the Lord, because the husband is the head of the wife, and Christ is the head of the Church.",
"title": "Theological views"
},
{
"paragraph_id": 122,
"text": "Though each of their churches is autonomous and self-governed, the official position of the Southern Baptist Convention (the largest Protestant denomination in the United States) is:",
"title": "Theological views"
},
{
"paragraph_id": 123,
"text": "The husband and wife are of equal worth before God, since both are created in God's image. A husband is to love his wife as Christ loved the church. He has the God-given responsibility to provide for, to protect, and to lead his family. A wife is to submit herself graciously to the servant leadership of her husband even as the church willingly submits to the headship of Christ. She, being in the image of God as is her husband and thus equal to him, has the God-given responsibility to respect her husband and to serve as his helper in managing the household and nurturing the next generation.\"",
"title": "Theological views"
},
{
"paragraph_id": 124,
"text": "The patriarchal model of marriage is clearly the oldest one. It characterized the theological understanding of most Old Testament writers. It mandates the supremacy, at times the ultimate domination, of the husband-father in the family. In the first century Roman Empire, in the time of Jesus, Paul, and Peter, it was the law of the land and gave the husband absolute authority over his wife, children, and slaves—even the power of life or death. It subordinates all women.",
"title": "Theological views"
},
{
"paragraph_id": 125,
"text": "Biblical patriarchy is similar to Complementarianism but with differences of degree and emphasis. Biblical patriarchists carry the husband-headship model considerably further and with more militancy. While Complementarians also hold to exclusively male leadership in both the home and the church, Biblical patriarchy extends that exclusion to the civic sphere as well, so that women should not be civil leaders and indeed should not have careers outside the home.",
"title": "Theological views"
},
{
"paragraph_id": 126,
"text": "Patriarchy is based on authoritarianism—complete obedience or subjection to male authority as opposed to individual freedom. Patriarchy gives preeminence to the male in essentially all matters of religion and culture. It explicitly deprives all women of social, political, and economic rights. The marriage relationship simply reinforced this dominance of women by men, providing religious, cultural, and legal structures that clearly favor patriarchy to the exclusion of even basic human dignity for wives.",
"title": "Theological views"
},
{
"paragraph_id": 127,
"text": "Historically in classical patriarchy, the wives and children were always legally dependent upon the father, as were the slaves and other servants. It was the way of life throughout most of the Old Testament, religiously, legally, and culturally. However, it was not unique to Hebrew thought. With only minor variations, it characterized virtually every pagan culture of that day—including all Pre-Christian doctrine and practice.",
"title": "Theological views"
},
{
"paragraph_id": 128,
"text": "While Scripture allowed this approach in Old Testament times, nowhere does the Bible ordain it. In the Hebrew nation, patriarchy seems to have evolved as an expression of male dominance and supremacy, and of a double standard that prevailed throughout much of the Old Testament. Its contemporary advocates insist that it is the only biblically valid model for marriage today. They argue that it was established at Creation, and thus is a firm, unalterable decree of God about the relative positions of men and women.",
"title": "Theological views"
},
{
"paragraph_id": 129,
"text": "Biblical patriarchists see what they describe as a crisis of this era being what they term to be a systematic attack on the \"timeless truths of biblical patriarchy\". They believe such an attack includes the movement to \"subvert the biblical model of the family, and redefine the very meaning of fatherhood and motherhood, masculinity, femininity, and the parent and child relationship.\" Arguing from the biblical presentation of God revealing himself \"as masculine, not feminine\", they believe God ordained distinct gender roles for man and woman as part of the created order. They say \"Adam’s headship over Eve was established at the beginning, before sin entered the world\". Their view is that the male has God-given authority and mandate to direct \"his\" household in paths of obedience to God. They refer to man's \"dominion\" beginning within the home, and a man's qualification to lead and ability to lead well in the public square is based upon his prior success in ruling his household.",
"title": "Theological views"
},
{
"paragraph_id": 130,
"text": "Thus, William Einwechter refers to the traditional Complementarian view as \"two-point Complementarianism\" (male leadership in the family and church), and regards the biblical patriarchy view as \"three-point\" or \"full\" complementarianism (male leadership in family, church and society).",
"title": "Theological views"
},
{
"paragraph_id": 131,
"text": "The patriarchists teach that \"the woman was created as a helper to her husband, as the bearer of children, and as a \"keeper at home\", concluding that the God-ordained and proper sphere of dominion for a wife is the household. Biblical patriarchists consider that \"faithfulness to Christ requires that (Biblical patriarchy) be believed, taught, and lived\". They claim that the \"man is...the image and glory of God in terms of authority, while the woman is the glory of man\". They teach that a wife is to be obedient to her \"head\" (husband), based upon Old Testament teachings and models.",
"title": "Theological views"
},
{
"paragraph_id": 132,
"text": "See Christian feminism",
"title": "Theological views"
}
] | From the earliest days of the Christian faith, Christians have viewed marriage as a divinely blessed, lifelong, monogamous union between a man and a woman. However, while many Christians might agree with the traditional definition, the terminology and theological views of marriage have varied through time in different countries, and among Christian denominations. Many Protestants consider marriage to be a sacred institution or "holy ordinance" of God. Catholic and Eastern Orthodox Christians consider marriage as a holy sacrament or sacred mystery. However, there have been differing attitudes among denominations and individual Christians towards not only the concept of Christian marriage, but also concerning divorce, remarriage, gender roles, family authority, the legal status of married women, birth control, marriageable age, cousin marriage, marriage of in-laws, interfaith marriage, same-sex marriage, and polygamy, among other topics, so that in the 21st century there cannot be said to be a single, uniform, worldwide view of marriage among all who profess to be Christians. Christian teaching has never held that marriage is necessary for everyone; for many centuries in Western Europe, priestly or monastic celibacy was valued as highly as, if not higher than, marriage. Christians who did not marry were expected to refrain from all sexual activity, as were those who took holy orders or monastic vows. In some Western countries, a separate and secular civil wedding ceremony is required for recognition by the state, while in other Western countries, couples must merely obtain a marriage license from a local government authority and can be married by Christian or other clergy if they are authorized by law to conduct weddings. In this case, the state recognizes the religious marriage as a civil marriage as well; and Christian couples married in this way have all the rights of civil marriage, including, for example, divorce, even if their church forbids divorce. | 2001-12-08T22:20:18Z | 2023-12-24T17:59:54Z | [
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] | https://en.wikipedia.org/wiki/Christian_views_on_marriage |
7,392 | Class (computer programming) | In object-oriented programming, a class is an extensible program-code-template for creating objects, providing initial values for state (member variables) and implementations of behavior (member functions or methods).
When an object is created by a constructor of the class, the resulting object is called an instance of the class, and the member variables specific to the object are called instance variables, to contrast with the class variables shared across the class.
In certain languages, classes are, as a matter of fact, only a compile time feature (new classes cannot be declared at run-time), while in other languages classes are first-class citizens, and are generally themselves objects (typically of type Class or similar). In these languages, a class that creates classes within itself is called a metaclass.
In object-oriented programming (OOP), an instance is a concrete occurrence of any object, existing usually during the runtime of a computer program. Formally, "instance" is synonymous with "object" as they are each a particular value (realization), and these may be called an instance object; "instance" emphasizes the distinct identity of the object. The creation of an instance is called instantiation.
An object may be varied in a number of ways. Each realized variation of that object is an instance of its class. That is, it is a member of a given class that has specified values rather than variables. In a non-programming context, you could think of "dog" as a type and your particular dog as an instance of that class.
In class-based programming, objects are created as instances of classes by subroutines called constructors, and destroyed by destructors. An object is an instance of a class as it can access to all data types(primitive as well as non primitive), and methods etc, of a class. Therefore, objects may be called a class instances or class objects. Object instantiation is known as construction. Not all classes can be instantiated – abstract classes cannot be instantiated, while classes that can be instantiated are called concrete classes. In prototype-based programming, instantiation is instead done by copying (cloning) a prototype instance.
In its most casual usage, people often refer to the "class" of an object, but narrowly speaking objects have type: the interface, namely the types of member variables, the signatures of member functions (methods), and properties these satisfy. At the same time, a class has an implementation (specifically the implementation of the methods), and can create objects of a given type, with a given implementation. In the terms of type theory, a class is an implementation—a concrete data structure and collection of subroutines—while a type is an interface. Different (concrete) classes can produce objects of the same (abstract) type (depending on type system); for example, the type Stack might be implemented with two classes – SmallStack (fast for small stacks, but scales poorly) and ScalableStack (scales well but high overhead for small stacks). Similarly, a given class may have several different constructors.
Class types generally represent nouns, such as a person, place or thing, or something nominalized, and a class represents an implementation of these. For example, a Banana type might represent the properties and functionality of bananas in general, while the ABCBanana and XYZBanana classes would represent ways of producing bananas (say, banana suppliers or data structures and functions to represent and draw bananas in a video game). The ABCBanana class could then produce particular bananas: instances of the ABCBanana class would be objects of type Banana. Often only a single implementation of a type is given, in which case the class name is often identical with the type name.
Classes are composed from structural and behavioral constituents. Programming languages that include classes as a programming construct offer support, for various class-related features, and the syntax required to use these features varies greatly from one programming language to another.
A class contains data field descriptions (or properties, fields, data members, or attributes). These are usually field types and names that will be associated with state variables at program run time; these state variables either belong to the class or specific instances of the class. In most languages, the structure defined by the class determines the layout of the memory used by its instances. Other implementations are possible: for example, objects in Python use associative key-value containers.
Some programming languages such as Eiffel support specification of invariants as part of the definition of the class, and enforce them through the type system. Encapsulation of state is necessary for being able to enforce the invariants of the class.
The behavior of class or its instances is defined using methods. Methods are subroutines with the ability to operate on objects or classes. These operations may alter the state of an object or simply provide ways of accessing it. Many kinds of methods exist, but support for them varies across languages. Some types of methods are created and called by programmer code, while other special methods—such as constructors, destructors, and conversion operators—are created and called by compiler-generated code. A language may also allow the programmer to define and call these special methods.
Every class implements (or realizes) an interface by providing structure and behavior. Structure consists of data and state, and behavior consists of code that specifies how methods are implemented. There is a distinction between the definition of an interface and the implementation of that interface; however, this line is blurred in many programming languages because class declarations both define and implement an interface. Some languages, however, provide features that separate interface and implementation. For example, an abstract class can define an interface without providing implementation.
Languages that support class inheritance also allow classes to inherit interfaces from the classes that they are derived from.
For example, if "class A" inherits from "class B" and if "class B" implements the interface "interface B" then "class A" also inherits the functionality(constants and methods declaration) provided by "interface B".
In languages that support access specifiers, the interface of a class is considered to be the set of public members of the class, including both methods and attributes (via implicit getter and setter methods); any private members or internal data structures are not intended to be depended on by external code and thus are not part of the interface.
Object-oriented programming methodology dictates that the operations of any interface of a class are to be independent of each other. It results in a layered design where clients of an interface use the methods declared in the interface. An interface places no requirements for clients to invoke the operations of one interface in any particular order. This approach has the benefit that client code can assume that the operations of an interface are available for use whenever the client has access to the object.
The buttons on the front of your television set are the interface between you and the electrical wiring on the other side of its plastic casing. You press the "power" button to toggle the television on and off. In this example, your particular television is the instance, each method is represented by a button, and all the buttons together compose the interface (other television sets that are the same model as yours would have the same interface). In its most common form, an interface is a specification of a group of related methods without any associated implementation of the methods.
A television set also has a myriad of attributes, such as size and whether it supports colour, which together comprise its structure. A class represents the full description of a television, including its attributes (structure) and buttons (interface).
Getting the total number of televisions manufactured could be a static method of the television class. This method is clearly associated with the class, yet is outside the domain of each individual instance of the class. A static method that finds a particular instance out of the set of all television objects is another example.
The following is a common set of access specifiers:
Although many object-oriented languages support the above access specifiers, their semantics may differ.
Object-oriented design uses the access specifiers in conjunction with careful design of public method implementations to enforce class invariants—constraints on the state of the objects. A common usage of access specifiers is to separate the internal data of a class from its interface: the internal structure is made private, while public accessor methods can be used to inspect or alter such private data.
Access specifiers do not necessarily control visibility, in that even private members may be visible to client external code. In some languages, an inaccessible but visible member may be referred to at run-time (for example, by a pointer returned from a member function), but an attempt to use it by referring to the name of the member from client code will be prevented by the type checker.
The various object-oriented programming languages enforce member accessibility and visibility to various degrees, and depending on the language's type system and compilation policies, enforced at either compile-time or run-time. For example, the Java language does not allow client code that accesses the private data of a class to compile. In the C++ language, private methods are visible, but not accessible in the interface; however, they may be made invisible by explicitly declaring fully abstract classes that represent the interfaces of the class.
Some languages feature other accessibility schemes:
In addition to the design of standalone classes, programming languages may support more advanced class design based upon relationships between classes. The inter-class relationship design capabilities commonly provided are compositional and hierarchical.
Classes can be composed of other classes, thereby establishing a compositional relationship between the enclosing class and its embedded classes. Compositional relationship between classes is also commonly known as a has-a relationship. For example, a class "Car" could be composed of and contain a class "Engine". Therefore, a Car has an Engine. One aspect of composition is containment, which is the enclosure of component instances by the instance that has them. If an enclosing object contains component instances by value, the components and their enclosing object have a similar lifetime. If the components are contained by reference, they may not have a similar lifetime. For example, in Objective-C 2.0:
This Car class has an instance of NSString (a string object), Engine, and NSArray (an array object).
Classes can be derived from one or more existing classes, thereby establishing a hierarchical relationship between the derived-from classes (base classes, parent classes or superclasses) and the derived class (child class or subclass) . The relationship of the derived class to the derived-from classes is commonly known as an is-a relationship. For example, a class 'Button' could be derived from a class 'Control'. Therefore, a Button is a Control. Structural and behavioral members of the parent classes are inherited by the child class. Derived classes can define additional structural members (data fields) and behavioral members (methods) in addition to those that they inherit and are therefore specializations of their superclasses. Also, derived classes can override inherited methods if the language allows.
Not all languages support multiple inheritance. For example, Java allows a class to implement multiple interfaces, but only inherit from one class. If multiple inheritance is allowed, the hierarchy is a directed acyclic graph (or DAG for short), otherwise it is a tree. The hierarchy has classes as nodes and inheritance relationships as links. Classes in the same level are more likely to be associated than classes in different levels. The levels of this hierarchy are called layers or levels of abstraction.
Example (Simplified Objective-C 2.0 code, from iPhone SDK):
In this example, a UITableView is a UIScrollView is a UIView is a UIResponder is an NSObject.
Conceptually, a superclass is a superset of its subclasses. For example, a common class hierarchy would involve GraphicObject as a superclass of Rectangle and Ellipse, while Square would be a subclass of Rectangle. These are all subset relations in set theory as well, i.e., all squares are rectangles but not all rectangles are squares.
A common conceptual error is to mistake a part of relation with a subclass. For example, a car and truck are both kinds of vehicles and it would be appropriate to model them as subclasses of a vehicle class. However, it would be an error to model the component parts of the car as subclass relations. For example, a car is composed of an engine and body, but it would not be appropriate to model engine or body as a subclass of car.
In object-oriented modeling these kinds of relations are typically modeled as object properties. In this example, the Car class would have a property called parts. parts would be typed to hold a collection of objects, such as instances of Body, Engine, Tires, etc. Object modeling languages such as UML include capabilities to model various aspects of "part of" and other kinds of relations – data such as the cardinality of the objects, constraints on input and output values, etc. This information can be utilized by developer tools to generate additional code beside the basic data definitions for the objects, such as error checking on get and set methods.
One important question when modeling and implementing a system of object classes is whether a class can have one or more superclasses. In the real world with actual sets it would be rare to find sets that did not intersect with more than one other set. However, while some systems such as Flavors and CLOS provide a capability for more than one parent to do so at run time introduces complexity that many in the object-oriented community consider antithetical to the goals of using object classes in the first place. Understanding which class will be responsible for handling a message can get complex when dealing with more than one superclass. If used carelessly this feature can introduce some of the same system complexity and ambiguity classes were designed to avoid.
Most modern object-oriented languages such as Smalltalk and Java require single inheritance at run time. For these languages, multiple inheritance may be useful for modeling but not for an implementation.
However, semantic web application objects do have multiple superclasses. The volatility of the Internet requires this level of flexibility and the technology standards such as the Web Ontology Language (OWL) are designed to support it.
A similar issue is whether or not the class hierarchy can be modified at run time. Languages such as Flavors, CLOS, and Smalltalk all support this feature as part of their meta-object protocols. Since classes are themselves first-class objects, it is possible to have them dynamically alter their structure by sending them the appropriate messages. Other languages that focus more on strong typing such as Java and C++ do not allow the class hierarchy to be modified at run time. Semantic web objects have the capability for run time changes to classes. The rational is similar to the justification for allowing multiple superclasses, that the Internet is so dynamic and flexible that dynamic changes to the hierarchy are required to manage this volatility.
Although class-based languages are commonly assumed to support inheritance, inheritance is not an intrinsic aspect of the concept of classes. Some languages, often referred to as "object-based languages", support classes yet do not support inheritance. Examples of object-based languages include earlier versions of Visual Basic.
In object-oriented analysis and in UML, an association between two classes represents a collaboration between the classes or their corresponding instances. Associations have direction; for example, a bi-directional association between two classes indicates that both of the classes are aware of their relationship. Associations may be labeled according to their name or purpose.
An association role is given end of an association and describes the role of the corresponding class. For example, a "subscriber" role describes the way instances of the class "Person" participate in a "subscribes-to" association with the class "Magazine". Also, a "Magazine" has the "subscribed magazine" role in the same association. Association role multiplicity describes how many instances correspond to each instance of the other class of the association. Common multiplicities are "0..1", "1..1", "1..*" and "0..*", where the "*" specifies any number of instances.
There are many categories of classes, some of which overlap.
In a language that supports inheritance, an abstract class, or abstract base class (ABC), is a class that cannot be directly instantiated. By contrast, a concrete class is a class that can be directly instantiated. Instantiation of an abstract class can occur only indirectly, via a concrete subclass.
An abstract class is either labeled as such explicitly or it may simply specifies abstract methods (or virtual methods). An abstract class may provide implementations of some methods, and may also specify virtual methods via signatures that are to be implemented by direct or indirect descendants of the abstract class. Before a class derived from an abstract class can be instantiated, all abstract methods of its parent classes must be implemented by some class in the derivation chain.
Most object-oriented programming languages allow the programmer to specify which classes are considered abstract and will not allow these to be instantiated. For example, in Java, C# and PHP, the keyword abstract is used. In C++, an abstract class is a class having at least one abstract method given by the appropriate syntax in that language (a pure virtual function in C++ parlance).
A class consisting of only virtual methods is called a pure abstract base class (or pure ABC) in C++ and is also known as an interface by users of the language. Other languages, notably Java and C#, support a variant of abstract classes called an interface via a keyword in the language. In these languages, multiple inheritance is not allowed, but a class can implement multiple interfaces. Such a class can only contain abstract publicly accessible methods.
In some languages, classes can be declared in scopes other than the global scope. There are various types of such classes.
An inner class is a class defined within another class. The relationship between an inner class and its containing class can also be treated as another type of class association. An inner class is typically neither associated with instances of the enclosing class nor instantiated along with its enclosing class. Depending on language, it may or may not be possible to refer to the class from outside the enclosing class. A related concept is inner types, also known as inner data type or nested type, which is a generalization of the concept of inner classes. C++ is an example of a language that supports both inner classes and inner types (via typedef declarations).
Another type is a local class, which is a class defined within a procedure or function. This limits references to the class name to within the scope where the class is declared. Depending on the semantic rules of the language, there may be additional restrictions on local classes compared to non-local ones. One common restriction is to disallow local class methods to access local variables of the enclosing function. For example, in C++, a local class may refer to static variables declared within its enclosing function, but may not access the function's automatic variables.
Metaclasses are classes whose instances are classes. A metaclass describes a common structure of a collection of classes and can implement a design pattern or describe particular kinds of classes. Metaclasses are often used to describe frameworks.
In some languages, such as Python, Ruby or Smalltalk, a class is also an object; thus each class is an instance of a unique metaclass that is built into the language. The Common Lisp Object System (CLOS) provides metaobject protocols (MOPs) to implement those classes and metaclasses.
Non-subclassable classes or sealed classes allow programmers to design classes and hierarchies of classes where at some level in the hierarchy, further derivation is prohibited (a stand-alone class may be also designated as non-subclassable, preventing the formation of any hierarchy). Contrast this to abstract classes, which imply, encourage, and require derivation in order to be used at all. A non-subclassable class is implicitly concrete.
A non-subclassable class is created by declaring the class as sealed in C# or as final in Java or PHP. For example, Java's String class is designated as final.
Non-subclassable classes may allow a compiler (in compiled languages) to perform optimizations that are not available for subclassable classes.
An open class is one that can be changed. Typically, an executable program cannot be changed by customers. Developers can often change some classes, but typically cannot change standard or built-in ones. In Ruby, all classes are open. In Python, classes can be created at runtime, and all can be modified afterwards. Objective-C categories permit the programmer to add methods to an existing class without the need to recompile that class or even have access to its source code.
Some languages have special support for mixins, though in any language with multiple inheritance a mixin is simply a class that does not represent an is-a-type-of relationship. Mixins are typically used to add the same methods to multiple classes; for example, a class UnicodeConversionMixin might provide a method called unicode_to_ascii when included in classes FileReader and WebPageScraper that do not share a common parent.
In languages supporting the feature, a partial class is a class whose definition may be split into multiple pieces, within a single source-code file or across multiple files. The pieces are merged at compile-time, making compiler output the same as for a non-partial class.
The primary motivation for introduction of partial classes is to facilitate the implementation of code generators, such as visual designers. It is otherwise a challenge or compromise to develop code generators that can manage the generated code when it is interleaved within developer-written code. Using partial classes, a code generator can process a separate file or coarse-grained partial class within a file, and is thus alleviated from intricately interjecting generated code via extensive parsing, increasing compiler efficiency and eliminating the potential risk of corrupting developer code. In a simple implementation of partial classes, the compiler can perform a phase of precompilation where it "unifies" all the parts of a partial class. Then, compilation can proceed as usual.
Other benefits and effects of the partial class feature include:
Partial classes have existed in Smalltalk under the name of Class Extensions for considerable time. With the arrival of the .NET framework 2, Microsoft introduced partial classes, supported in both C# 2.0 and Visual Basic 2005. WinRT also supports partial classes.
Uninstantiable classes allow programmers to group together per-class fields and methods that are accessible at runtime without an instance of the class. Indeed, instantiation is prohibited for this kind of class.
For example, in C#, a class marked "static" can not be instantiated, can only have static members (fields, methods, other), may not have instance constructors, and is sealed.
An unnamed class or anonymous class is a class that is not bound to a name or identifier upon definition. This is analogous to named versus unnamed functions.
The benefits of organizing software into object classes fall into three categories:
Object classes facilitate rapid development because they lessen the semantic gap between the code and the users. System analysts can talk to both developers and users using essentially the same vocabulary, talking about accounts, customers, bills, etc. Object classes often facilitate rapid development because most object-oriented environments come with powerful debugging and testing tools. Instances of classes can be inspected at run time to verify that the system is performing as expected. Also, rather than get dumps of core memory, most object-oriented environments have interpreted debugging capabilities so that the developer can analyze exactly where in the program the error occurred and can see which methods were called to which arguments and with what arguments.
Object classes facilitate ease of maintenance via encapsulation. When developers need to change the behavior of an object they can localize the change to just that object and its component parts. This reduces the potential for unwanted side effects from maintenance enhancements.
Software re-use is also a major benefit of using Object classes. Classes facilitate re-use via inheritance and interfaces. When a new behavior is required it can often be achieved by creating a new class and having that class inherit the default behaviors and data of its superclass and then tailor some aspect of the behavior or data accordingly. Re-use via interfaces (also known as methods) occurs when another object wants to invoke (rather than create a new kind of) some object class. This method for re-use removes many of the common errors that can make their way into software when one program re-uses code from another.
As a data type, a class is usually considered as a compile-time construct. A language or library may also support prototype or factory metaobjects that represent run-time information about classes, or even represent metadata that provides access to reflection facilities and ability to manipulate data structure formats at run-time. Many languages distinguish this kind of run-time type information about classes from a class on the basis that the information is not needed at run-time. Some dynamic languages do not make strict distinctions between run-time and compile-time constructs, and therefore may not distinguish between metaobjects and classes.
For example, if Human is a metaobject representing the class Person, then instances of class Person can be created by using the facilities of the Human metaobject. | [
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"text": "When an object is created by a constructor of the class, the resulting object is called an instance of the class, and the member variables specific to the object are called instance variables, to contrast with the class variables shared across the class.",
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"text": "In certain languages, classes are, as a matter of fact, only a compile time feature (new classes cannot be declared at run-time), while in other languages classes are first-class citizens, and are generally themselves objects (typically of type Class or similar). In these languages, a class that creates classes within itself is called a metaclass.",
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},
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"paragraph_id": 3,
"text": "In object-oriented programming (OOP), an instance is a concrete occurrence of any object, existing usually during the runtime of a computer program. Formally, \"instance\" is synonymous with \"object\" as they are each a particular value (realization), and these may be called an instance object; \"instance\" emphasizes the distinct identity of the object. The creation of an instance is called instantiation.",
"title": "Related concepts"
},
{
"paragraph_id": 4,
"text": "An object may be varied in a number of ways. Each realized variation of that object is an instance of its class. That is, it is a member of a given class that has specified values rather than variables. In a non-programming context, you could think of \"dog\" as a type and your particular dog as an instance of that class.",
"title": "Related concepts"
},
{
"paragraph_id": 5,
"text": "In class-based programming, objects are created as instances of classes by subroutines called constructors, and destroyed by destructors. An object is an instance of a class as it can access to all data types(primitive as well as non primitive), and methods etc, of a class. Therefore, objects may be called a class instances or class objects. Object instantiation is known as construction. Not all classes can be instantiated – abstract classes cannot be instantiated, while classes that can be instantiated are called concrete classes. In prototype-based programming, instantiation is instead done by copying (cloning) a prototype instance.",
"title": "Related concepts"
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{
"paragraph_id": 6,
"text": "In its most casual usage, people often refer to the \"class\" of an object, but narrowly speaking objects have type: the interface, namely the types of member variables, the signatures of member functions (methods), and properties these satisfy. At the same time, a class has an implementation (specifically the implementation of the methods), and can create objects of a given type, with a given implementation. In the terms of type theory, a class is an implementation—a concrete data structure and collection of subroutines—while a type is an interface. Different (concrete) classes can produce objects of the same (abstract) type (depending on type system); for example, the type Stack might be implemented with two classes – SmallStack (fast for small stacks, but scales poorly) and ScalableStack (scales well but high overhead for small stacks). Similarly, a given class may have several different constructors.",
"title": "Related concepts"
},
{
"paragraph_id": 7,
"text": "Class types generally represent nouns, such as a person, place or thing, or something nominalized, and a class represents an implementation of these. For example, a Banana type might represent the properties and functionality of bananas in general, while the ABCBanana and XYZBanana classes would represent ways of producing bananas (say, banana suppliers or data structures and functions to represent and draw bananas in a video game). The ABCBanana class could then produce particular bananas: instances of the ABCBanana class would be objects of type Banana. Often only a single implementation of a type is given, in which case the class name is often identical with the type name.",
"title": "Related concepts"
},
{
"paragraph_id": 8,
"text": "Classes are composed from structural and behavioral constituents. Programming languages that include classes as a programming construct offer support, for various class-related features, and the syntax required to use these features varies greatly from one programming language to another.",
"title": "Design and implementation"
},
{
"paragraph_id": 9,
"text": "A class contains data field descriptions (or properties, fields, data members, or attributes). These are usually field types and names that will be associated with state variables at program run time; these state variables either belong to the class or specific instances of the class. In most languages, the structure defined by the class determines the layout of the memory used by its instances. Other implementations are possible: for example, objects in Python use associative key-value containers.",
"title": "Design and implementation"
},
{
"paragraph_id": 10,
"text": "Some programming languages such as Eiffel support specification of invariants as part of the definition of the class, and enforce them through the type system. Encapsulation of state is necessary for being able to enforce the invariants of the class.",
"title": "Design and implementation"
},
{
"paragraph_id": 11,
"text": "The behavior of class or its instances is defined using methods. Methods are subroutines with the ability to operate on objects or classes. These operations may alter the state of an object or simply provide ways of accessing it. Many kinds of methods exist, but support for them varies across languages. Some types of methods are created and called by programmer code, while other special methods—such as constructors, destructors, and conversion operators—are created and called by compiler-generated code. A language may also allow the programmer to define and call these special methods.",
"title": "Design and implementation"
},
{
"paragraph_id": 12,
"text": "Every class implements (or realizes) an interface by providing structure and behavior. Structure consists of data and state, and behavior consists of code that specifies how methods are implemented. There is a distinction between the definition of an interface and the implementation of that interface; however, this line is blurred in many programming languages because class declarations both define and implement an interface. Some languages, however, provide features that separate interface and implementation. For example, an abstract class can define an interface without providing implementation.",
"title": "Design and implementation"
},
{
"paragraph_id": 13,
"text": "Languages that support class inheritance also allow classes to inherit interfaces from the classes that they are derived from.",
"title": "Design and implementation"
},
{
"paragraph_id": 14,
"text": "For example, if \"class A\" inherits from \"class B\" and if \"class B\" implements the interface \"interface B\" then \"class A\" also inherits the functionality(constants and methods declaration) provided by \"interface B\".",
"title": "Design and implementation"
},
{
"paragraph_id": 15,
"text": "In languages that support access specifiers, the interface of a class is considered to be the set of public members of the class, including both methods and attributes (via implicit getter and setter methods); any private members or internal data structures are not intended to be depended on by external code and thus are not part of the interface.",
"title": "Design and implementation"
},
{
"paragraph_id": 16,
"text": "Object-oriented programming methodology dictates that the operations of any interface of a class are to be independent of each other. It results in a layered design where clients of an interface use the methods declared in the interface. An interface places no requirements for clients to invoke the operations of one interface in any particular order. This approach has the benefit that client code can assume that the operations of an interface are available for use whenever the client has access to the object.",
"title": "Design and implementation"
},
{
"paragraph_id": 17,
"text": "The buttons on the front of your television set are the interface between you and the electrical wiring on the other side of its plastic casing. You press the \"power\" button to toggle the television on and off. In this example, your particular television is the instance, each method is represented by a button, and all the buttons together compose the interface (other television sets that are the same model as yours would have the same interface). In its most common form, an interface is a specification of a group of related methods without any associated implementation of the methods.",
"title": "Design and implementation"
},
{
"paragraph_id": 18,
"text": "A television set also has a myriad of attributes, such as size and whether it supports colour, which together comprise its structure. A class represents the full description of a television, including its attributes (structure) and buttons (interface).",
"title": "Design and implementation"
},
{
"paragraph_id": 19,
"text": "Getting the total number of televisions manufactured could be a static method of the television class. This method is clearly associated with the class, yet is outside the domain of each individual instance of the class. A static method that finds a particular instance out of the set of all television objects is another example.",
"title": "Design and implementation"
},
{
"paragraph_id": 20,
"text": "The following is a common set of access specifiers:",
"title": "Design and implementation"
},
{
"paragraph_id": 21,
"text": "Although many object-oriented languages support the above access specifiers, their semantics may differ.",
"title": "Design and implementation"
},
{
"paragraph_id": 22,
"text": "Object-oriented design uses the access specifiers in conjunction with careful design of public method implementations to enforce class invariants—constraints on the state of the objects. A common usage of access specifiers is to separate the internal data of a class from its interface: the internal structure is made private, while public accessor methods can be used to inspect or alter such private data.",
"title": "Design and implementation"
},
{
"paragraph_id": 23,
"text": "Access specifiers do not necessarily control visibility, in that even private members may be visible to client external code. In some languages, an inaccessible but visible member may be referred to at run-time (for example, by a pointer returned from a member function), but an attempt to use it by referring to the name of the member from client code will be prevented by the type checker.",
"title": "Design and implementation"
},
{
"paragraph_id": 24,
"text": "The various object-oriented programming languages enforce member accessibility and visibility to various degrees, and depending on the language's type system and compilation policies, enforced at either compile-time or run-time. For example, the Java language does not allow client code that accesses the private data of a class to compile. In the C++ language, private methods are visible, but not accessible in the interface; however, they may be made invisible by explicitly declaring fully abstract classes that represent the interfaces of the class.",
"title": "Design and implementation"
},
{
"paragraph_id": 25,
"text": "Some languages feature other accessibility schemes:",
"title": "Design and implementation"
},
{
"paragraph_id": 26,
"text": "In addition to the design of standalone classes, programming languages may support more advanced class design based upon relationships between classes. The inter-class relationship design capabilities commonly provided are compositional and hierarchical.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 27,
"text": "Classes can be composed of other classes, thereby establishing a compositional relationship between the enclosing class and its embedded classes. Compositional relationship between classes is also commonly known as a has-a relationship. For example, a class \"Car\" could be composed of and contain a class \"Engine\". Therefore, a Car has an Engine. One aspect of composition is containment, which is the enclosure of component instances by the instance that has them. If an enclosing object contains component instances by value, the components and their enclosing object have a similar lifetime. If the components are contained by reference, they may not have a similar lifetime. For example, in Objective-C 2.0:",
"title": "Inter-class relationships"
},
{
"paragraph_id": 28,
"text": "This Car class has an instance of NSString (a string object), Engine, and NSArray (an array object).",
"title": "Inter-class relationships"
},
{
"paragraph_id": 29,
"text": "Classes can be derived from one or more existing classes, thereby establishing a hierarchical relationship between the derived-from classes (base classes, parent classes or superclasses) and the derived class (child class or subclass) . The relationship of the derived class to the derived-from classes is commonly known as an is-a relationship. For example, a class 'Button' could be derived from a class 'Control'. Therefore, a Button is a Control. Structural and behavioral members of the parent classes are inherited by the child class. Derived classes can define additional structural members (data fields) and behavioral members (methods) in addition to those that they inherit and are therefore specializations of their superclasses. Also, derived classes can override inherited methods if the language allows.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 30,
"text": "Not all languages support multiple inheritance. For example, Java allows a class to implement multiple interfaces, but only inherit from one class. If multiple inheritance is allowed, the hierarchy is a directed acyclic graph (or DAG for short), otherwise it is a tree. The hierarchy has classes as nodes and inheritance relationships as links. Classes in the same level are more likely to be associated than classes in different levels. The levels of this hierarchy are called layers or levels of abstraction.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 31,
"text": "Example (Simplified Objective-C 2.0 code, from iPhone SDK):",
"title": "Inter-class relationships"
},
{
"paragraph_id": 32,
"text": "In this example, a UITableView is a UIScrollView is a UIView is a UIResponder is an NSObject.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 33,
"text": "Conceptually, a superclass is a superset of its subclasses. For example, a common class hierarchy would involve GraphicObject as a superclass of Rectangle and Ellipse, while Square would be a subclass of Rectangle. These are all subset relations in set theory as well, i.e., all squares are rectangles but not all rectangles are squares.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 34,
"text": "A common conceptual error is to mistake a part of relation with a subclass. For example, a car and truck are both kinds of vehicles and it would be appropriate to model them as subclasses of a vehicle class. However, it would be an error to model the component parts of the car as subclass relations. For example, a car is composed of an engine and body, but it would not be appropriate to model engine or body as a subclass of car.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 35,
"text": "In object-oriented modeling these kinds of relations are typically modeled as object properties. In this example, the Car class would have a property called parts. parts would be typed to hold a collection of objects, such as instances of Body, Engine, Tires, etc. Object modeling languages such as UML include capabilities to model various aspects of \"part of\" and other kinds of relations – data such as the cardinality of the objects, constraints on input and output values, etc. This information can be utilized by developer tools to generate additional code beside the basic data definitions for the objects, such as error checking on get and set methods.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 36,
"text": "One important question when modeling and implementing a system of object classes is whether a class can have one or more superclasses. In the real world with actual sets it would be rare to find sets that did not intersect with more than one other set. However, while some systems such as Flavors and CLOS provide a capability for more than one parent to do so at run time introduces complexity that many in the object-oriented community consider antithetical to the goals of using object classes in the first place. Understanding which class will be responsible for handling a message can get complex when dealing with more than one superclass. If used carelessly this feature can introduce some of the same system complexity and ambiguity classes were designed to avoid.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 37,
"text": "Most modern object-oriented languages such as Smalltalk and Java require single inheritance at run time. For these languages, multiple inheritance may be useful for modeling but not for an implementation.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 38,
"text": "However, semantic web application objects do have multiple superclasses. The volatility of the Internet requires this level of flexibility and the technology standards such as the Web Ontology Language (OWL) are designed to support it.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 39,
"text": "A similar issue is whether or not the class hierarchy can be modified at run time. Languages such as Flavors, CLOS, and Smalltalk all support this feature as part of their meta-object protocols. Since classes are themselves first-class objects, it is possible to have them dynamically alter their structure by sending them the appropriate messages. Other languages that focus more on strong typing such as Java and C++ do not allow the class hierarchy to be modified at run time. Semantic web objects have the capability for run time changes to classes. The rational is similar to the justification for allowing multiple superclasses, that the Internet is so dynamic and flexible that dynamic changes to the hierarchy are required to manage this volatility.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 40,
"text": "Although class-based languages are commonly assumed to support inheritance, inheritance is not an intrinsic aspect of the concept of classes. Some languages, often referred to as \"object-based languages\", support classes yet do not support inheritance. Examples of object-based languages include earlier versions of Visual Basic.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 41,
"text": "In object-oriented analysis and in UML, an association between two classes represents a collaboration between the classes or their corresponding instances. Associations have direction; for example, a bi-directional association between two classes indicates that both of the classes are aware of their relationship. Associations may be labeled according to their name or purpose.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 42,
"text": "An association role is given end of an association and describes the role of the corresponding class. For example, a \"subscriber\" role describes the way instances of the class \"Person\" participate in a \"subscribes-to\" association with the class \"Magazine\". Also, a \"Magazine\" has the \"subscribed magazine\" role in the same association. Association role multiplicity describes how many instances correspond to each instance of the other class of the association. Common multiplicities are \"0..1\", \"1..1\", \"1..*\" and \"0..*\", where the \"*\" specifies any number of instances.",
"title": "Inter-class relationships"
},
{
"paragraph_id": 43,
"text": "There are many categories of classes, some of which overlap.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 44,
"text": "In a language that supports inheritance, an abstract class, or abstract base class (ABC), is a class that cannot be directly instantiated. By contrast, a concrete class is a class that can be directly instantiated. Instantiation of an abstract class can occur only indirectly, via a concrete subclass.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 45,
"text": "An abstract class is either labeled as such explicitly or it may simply specifies abstract methods (or virtual methods). An abstract class may provide implementations of some methods, and may also specify virtual methods via signatures that are to be implemented by direct or indirect descendants of the abstract class. Before a class derived from an abstract class can be instantiated, all abstract methods of its parent classes must be implemented by some class in the derivation chain.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 46,
"text": "Most object-oriented programming languages allow the programmer to specify which classes are considered abstract and will not allow these to be instantiated. For example, in Java, C# and PHP, the keyword abstract is used. In C++, an abstract class is a class having at least one abstract method given by the appropriate syntax in that language (a pure virtual function in C++ parlance).",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 47,
"text": "A class consisting of only virtual methods is called a pure abstract base class (or pure ABC) in C++ and is also known as an interface by users of the language. Other languages, notably Java and C#, support a variant of abstract classes called an interface via a keyword in the language. In these languages, multiple inheritance is not allowed, but a class can implement multiple interfaces. Such a class can only contain abstract publicly accessible methods.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 48,
"text": "In some languages, classes can be declared in scopes other than the global scope. There are various types of such classes.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 49,
"text": "An inner class is a class defined within another class. The relationship between an inner class and its containing class can also be treated as another type of class association. An inner class is typically neither associated with instances of the enclosing class nor instantiated along with its enclosing class. Depending on language, it may or may not be possible to refer to the class from outside the enclosing class. A related concept is inner types, also known as inner data type or nested type, which is a generalization of the concept of inner classes. C++ is an example of a language that supports both inner classes and inner types (via typedef declarations).",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 50,
"text": "Another type is a local class, which is a class defined within a procedure or function. This limits references to the class name to within the scope where the class is declared. Depending on the semantic rules of the language, there may be additional restrictions on local classes compared to non-local ones. One common restriction is to disallow local class methods to access local variables of the enclosing function. For example, in C++, a local class may refer to static variables declared within its enclosing function, but may not access the function's automatic variables.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 51,
"text": "Metaclasses are classes whose instances are classes. A metaclass describes a common structure of a collection of classes and can implement a design pattern or describe particular kinds of classes. Metaclasses are often used to describe frameworks.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 52,
"text": "In some languages, such as Python, Ruby or Smalltalk, a class is also an object; thus each class is an instance of a unique metaclass that is built into the language. The Common Lisp Object System (CLOS) provides metaobject protocols (MOPs) to implement those classes and metaclasses.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 53,
"text": "Non-subclassable classes or sealed classes allow programmers to design classes and hierarchies of classes where at some level in the hierarchy, further derivation is prohibited (a stand-alone class may be also designated as non-subclassable, preventing the formation of any hierarchy). Contrast this to abstract classes, which imply, encourage, and require derivation in order to be used at all. A non-subclassable class is implicitly concrete.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 54,
"text": "A non-subclassable class is created by declaring the class as sealed in C# or as final in Java or PHP. For example, Java's String class is designated as final.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 55,
"text": "Non-subclassable classes may allow a compiler (in compiled languages) to perform optimizations that are not available for subclassable classes.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 56,
"text": "An open class is one that can be changed. Typically, an executable program cannot be changed by customers. Developers can often change some classes, but typically cannot change standard or built-in ones. In Ruby, all classes are open. In Python, classes can be created at runtime, and all can be modified afterwards. Objective-C categories permit the programmer to add methods to an existing class without the need to recompile that class or even have access to its source code.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 57,
"text": "Some languages have special support for mixins, though in any language with multiple inheritance a mixin is simply a class that does not represent an is-a-type-of relationship. Mixins are typically used to add the same methods to multiple classes; for example, a class UnicodeConversionMixin might provide a method called unicode_to_ascii when included in classes FileReader and WebPageScraper that do not share a common parent.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 58,
"text": "In languages supporting the feature, a partial class is a class whose definition may be split into multiple pieces, within a single source-code file or across multiple files. The pieces are merged at compile-time, making compiler output the same as for a non-partial class.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 59,
"text": "The primary motivation for introduction of partial classes is to facilitate the implementation of code generators, such as visual designers. It is otherwise a challenge or compromise to develop code generators that can manage the generated code when it is interleaved within developer-written code. Using partial classes, a code generator can process a separate file or coarse-grained partial class within a file, and is thus alleviated from intricately interjecting generated code via extensive parsing, increasing compiler efficiency and eliminating the potential risk of corrupting developer code. In a simple implementation of partial classes, the compiler can perform a phase of precompilation where it \"unifies\" all the parts of a partial class. Then, compilation can proceed as usual.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 60,
"text": "Other benefits and effects of the partial class feature include:",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 61,
"text": "Partial classes have existed in Smalltalk under the name of Class Extensions for considerable time. With the arrival of the .NET framework 2, Microsoft introduced partial classes, supported in both C# 2.0 and Visual Basic 2005. WinRT also supports partial classes.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 62,
"text": "Uninstantiable classes allow programmers to group together per-class fields and methods that are accessible at runtime without an instance of the class. Indeed, instantiation is prohibited for this kind of class.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 63,
"text": "For example, in C#, a class marked \"static\" can not be instantiated, can only have static members (fields, methods, other), may not have instance constructors, and is sealed.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 64,
"text": "An unnamed class or anonymous class is a class that is not bound to a name or identifier upon definition. This is analogous to named versus unnamed functions.",
"title": "Taxonomy of classes"
},
{
"paragraph_id": 65,
"text": "The benefits of organizing software into object classes fall into three categories:",
"title": "Benefits"
},
{
"paragraph_id": 66,
"text": "Object classes facilitate rapid development because they lessen the semantic gap between the code and the users. System analysts can talk to both developers and users using essentially the same vocabulary, talking about accounts, customers, bills, etc. Object classes often facilitate rapid development because most object-oriented environments come with powerful debugging and testing tools. Instances of classes can be inspected at run time to verify that the system is performing as expected. Also, rather than get dumps of core memory, most object-oriented environments have interpreted debugging capabilities so that the developer can analyze exactly where in the program the error occurred and can see which methods were called to which arguments and with what arguments.",
"title": "Benefits"
},
{
"paragraph_id": 67,
"text": "Object classes facilitate ease of maintenance via encapsulation. When developers need to change the behavior of an object they can localize the change to just that object and its component parts. This reduces the potential for unwanted side effects from maintenance enhancements.",
"title": "Benefits"
},
{
"paragraph_id": 68,
"text": "Software re-use is also a major benefit of using Object classes. Classes facilitate re-use via inheritance and interfaces. When a new behavior is required it can often be achieved by creating a new class and having that class inherit the default behaviors and data of its superclass and then tailor some aspect of the behavior or data accordingly. Re-use via interfaces (also known as methods) occurs when another object wants to invoke (rather than create a new kind of) some object class. This method for re-use removes many of the common errors that can make their way into software when one program re-uses code from another.",
"title": "Benefits"
},
{
"paragraph_id": 69,
"text": "As a data type, a class is usually considered as a compile-time construct. A language or library may also support prototype or factory metaobjects that represent run-time information about classes, or even represent metadata that provides access to reflection facilities and ability to manipulate data structure formats at run-time. Many languages distinguish this kind of run-time type information about classes from a class on the basis that the information is not needed at run-time. Some dynamic languages do not make strict distinctions between run-time and compile-time constructs, and therefore may not distinguish between metaobjects and classes.",
"title": "Run-time representation"
},
{
"paragraph_id": 70,
"text": "For example, if Human is a metaobject representing the class Person, then instances of class Person can be created by using the facilities of the Human metaobject.",
"title": "Run-time representation"
}
] | In object-oriented programming, a class is an extensible program-code-template for creating objects, providing initial values for state and implementations of behavior. When an object is created by a constructor of the class, the resulting object is called an instance of the class, and the member variables specific to the object are called instance variables, to contrast with the class variables shared across the class. In certain languages, classes are, as a matter of fact, only a compile time feature, while in other languages classes are first-class citizens, and are generally themselves objects. In these languages, a class that creates classes within itself is called a metaclass. | 2001-12-09T00:04:05Z | 2023-12-21T23:24:11Z | [
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7,394 | Canterbury (disambiguation) | Canterbury is a city located in the county of Kent in southeast England. It may also refer to: | [
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7,397 | Color blindness | Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone cells in the retina, which mediate color vision. The most common form is caused by a genetic condition called congenital red–green color blindness (including protan and deutan types), which affects up to 1 in 12 males (8%) and 1 in 200 females (0.5%). The condition is more prevalent in males, because the opsin genes responsible are located on the X chromosome. Rarer genetic conditions causing color blindness include congenital blue–yellow color blindness (tritan type), blue cone monochromacy, and achromatopsia. Color blindness can also result from physical or chemical damage to the eye, the optic nerve, or parts of the brain or from medication toxicity. Color vision also naturally degrades in old age.
Diagnosis of color blindness is usually done with a color vision test, such as the Ishihara test. There is no cure for most causes of color blindness. However, gene therapy against some severe conditions causing color blindness are ongoing. Minor forms of color blindness do not significantly affect daily life and people with color blindness automatically develop adaptations and coping mechanisms to compensate for the deficiency. However, diagnosis may allow an individual, or their parents/teachers to actively accommodate the condition. Color blind glasses (e.g. EnChroma) may help people with red–green color blindness at some color tasks, but they do not grant the wearer "normal color vision" or the ability to see "new" colors. Some mobile apps can use a device's camera to identify colors.
Depending on the jurisdiction, people with color blindness are ineligible for certain careers, such as aircraft pilots, train drivers, police officers, firefighters, and members of the armed forces. The effect of color blindness on artistic ability is controversial, but a number of famous artists are believed to have been color blind.
A person who is color blind will have decreased (or no) color discrimination along the red–green axis, blue–yellow axis, or both. However, the vast majority of people with color blindness are only affected on their red–green axis.
The first indication of color blindness generally consists of a person using the wrong color for an object, such as when painting, or calling a color by the wrong name. The colors that are confused are very consistent among people with the same type of color blindness.
Confusion colors are pairs or groups of colors that will often be mistaken by people with color blindness. Confusion colors for red–green color blindness include:
Confusion colors for tritan include:
These colors of confusion are defined quantitatively by straight confusion lines plotted in CIEXYZ, usually plotted on the corresponding chromaticity diagram. The lines all intersect at a copunctal point, which varies with the type of color blindness. Chromaticities along a confusion line will appear metameric to people with dichromacy of that type. People with trichromacy of that type will see the chromaticities as metameric if they are close enough, depending on the strength of their CVD. For two colors on a confusion line to be metameric, the chromaticities first have to be made isoluminant, meaning equal in lightness. Also, colors that may be isoluminant to the standard observer may not be isoluminant to a person with dichromacy.
Cole describes four color tasks, all of which are impeded to some degree by color blindness:
The following sections describe specific color tasks with which people with color blindness typically have difficulty.
Color blindness causes difficulty with the connotative color tasks associated with selecting or preparing food. Selecting food for ripeness can be difficult. The green–yellow transition of bananas is particularly hard to identify. It can also be difficult to detect bruises, mold or rot on some foods, to determine when meat is done by color, to distinguish some varietals, such as a Braeburn vs. a Granny Smith apple, or to distinguish colors associated with artificial flavors (e.g. jelly beans, sports drinks).
Changes in skin color due to bruising, sunburn, rashes or even blushing are easily missed by people with red–green color blindness.
The colors of traffic lights can be difficult for people with red–green color blindness. This difficulty includes distinguishing red/amber lights from sodium street lamps, distinguishing green lights (closer to cyan) from normal white lights, and distinguishing red from amber lights, especially when there are no positional clues available (see image).
The main coping mechanism to overcome these challenges is to memorize the position of lights. The order of the common triplet traffic light is standardized as red–amber–green from top to bottom or left to right. Cases that deviate from this standard are rare. One such case is a traffic light in Tipperary Hill in Syracuse, New York, which is upside-down (green–amber–red top to bottom) due to the sentiments of its Irish American community. However, the light has been criticized due to the potential hazard it poses for color-blind drivers.
There are other several features of traffic lights available that help accommodate people with color blindness. British Rail signals use more easily identifiable colors: The red is blood red, the amber is yellow and the green is a bluish color. Most British road traffic lights are mounted vertically on a black rectangle with a white border (forming a "sighting board"), so that drivers can more easily look for the position of the light. In the eastern provinces of Canada, traffic lights are sometimes differentiated by shape in addition to color: square for red, diamond for yellow, and circle for green (see image).
Navigation lights in marine and aviation settings employ red and green lights to signal the relative position of other ships or aircraft. Railway signal lights also rely heavily on red–green–yellow colors. In both cases, these color combinations can be difficult for people with red–green color blindness. Lantern Tests are a common means of simulating these light sources to determine not necessarily whether someone is color blind, but whether they can functionally distinguish these specific signal colors. Those who cannot pass this test are generally completely restricted from working on aircraft, ships or rail.
Color analysis is the analysis of color in its use in fashion, to determine personal color combinations that are most aesthetically pleasing. Colors to combine can include clothing, accessories, makeup, hair color, skin color, eye color, etc. Color analysis involves many aesthetic and comparative color task that can be difficult for people with color blindness.
Inability to distinguish color does not necessarily preclude the ability to become a celebrated artist. The 20th century expressionist painter Clifton Pugh, three-time winner of Australia's Archibald Prize, on biographical, gene inheritance and other grounds has been identified as a person with protanopia. 19th century French artist Charles Méryon became successful by concentrating on etching rather than painting after he was diagnosed as having a red–green deficiency. Jin Kim's red–green color blindness did not stop him from becoming first an animator and later a character designer with Walt Disney Animation Studios.
People with deuteranomaly are better at distinguishing shades of khaki, which may be advantageous when looking for predators, food, or camouflaged objects hidden among foliage. People with dichromacy tend to learn to use texture and shape clues and so may be able to penetrate camouflage that has been designed to deceive individuals with normal color vision.
Some tentative evidence finds that people with color blindness are better at penetrating certain color camouflages. Such findings may give an evolutionary reason for the high rate of red–green color blindness. There is also a study suggesting that people with some types of color blindness can distinguish colors that people with normal color vision are not able to distinguish. In World War II, color blind observers were used to penetrate camouflage.
In the presence of chromatic noise, people with color blindness are more capable of seeing a luminous signal, as long as the chromatic noise appears metameric to them. This is the effect behind most "reverse" Pseudoisochromatic plates (e.g. "hidden digit" Ishihara plates) that are discernible to people with color blindness but unreadable to people with typical color perception.
Color codes are useful tools for designers to convey information. The interpretation of this information requires users to perform a variety of Color Tasks, usually comparative but also sometimes connotative or denotative. However, these tasks are often problematic for people with color blindness when design of the color code has not followed best practices for accessibility. For example, one of the most ubiquitous connotative color codes is the "red means bad and green means good" or similar systems, based on the classic signal light colors. However, this color coding will almost always be undifferentiable to people with either deutan or protan CVD, and therefore should be avoided or supplemented with a parallel connotative system (symbols, smileys, etc.).
Good practices to ensure design is accessible to people with color blindness include:
A common task for designers is to select a subset of colors (qualitative colormap) that are as mutually differentiable as possible (salient). For example, player pieces in a board game should be as different as possible.
Classic advice suggests using Brewer palettes, but several of these are not actually accessible to people with color blindness.
Unfortunately, the colors with the greatest contrast to the red–green color blind tend to be colors of confusion to the blue–yellow color blind, and vice versa. However, since red–green is much more prevalent than blue–yellow CVD, design should generally prioritize those users (people with deutan CVD then protan CVD).
A common task for data visualization is to represent a color scale, or sequential colormap, often in the form of a heat map or choropleth. Several scales are designed with special consideration for people with color blindness and are widespread in academia, including Cividis, Viridis and Parula. These comprise a light-to-dark scale superimposed on a yellow-to-blue scale, making them monotonic and perceptually uniform to all forms of color vision.
Much terminology has existed and does exist for the classification of color blindness, but the typical classification for color blindness follows the von Kries classifications, which uses severity and affected cone for naming.
Based on clinical appearance, color blindness may be described as total or partial. Total color blindness (monochromacy) is much less common than partial color blindness. Partial color blindness includes dichromacy and anomalous trichromacy, but is often clinically defined as mild, moderate or strong.
Monochromacy is often called total color blindness since there is no ability to see color. Although the term may refer to acquired disorders such as cerebral achromatopsia, it typically refers to congenital color vision disorders, namely rod monochromacy and blue cone monochromacy).
In cerebral achromatopsia, a person cannot perceive colors even though the eyes are capable of distinguishing them. Some sources do not consider these to be true color blindness, because the failure is of perception, not of vision. They are forms of visual agnosia.
Monochromacy is the condition of possessing only a single channel for conveying information about color. Monochromats are unable to distinguish any colors and perceive only variations in brightness. Congenital monochromacy occurs in two primary forms:
Dichromats can match any color they see with some mixture of just two primary colors (in contrast to those with normal sight (trichromats) who can distinguish three primary colors). Dichromats usually know they have a color vision problem, and it can affect their daily lives. Dichromacy in humans includes protanopia, deuteranopia, and tritanopia. Out of the male population, 2% have severe difficulties distinguishing between red, orange, yellow, and green. (Orange and yellow are different combinations of red and green light.) Colors in this range, which appear very different to a normal viewer, appear to a dichromat to be the same or a similar color. The terms protanopia, deuteranopia, and tritanopia come from Greek, and respectively mean "inability to see (anopia) with the first (prot-), second (deuter-), or third (trit-) [cone]".
Anomalous trichromacy is the mildest type of color deficiency, but the severity ranges from almost dichromacy (strong) to almost normal trichromacy (mild). In fact, many mild anomalous trichromats have very little difficulty carrying out tasks that require normal color vision and some may not even be aware that they have a color vision deficiency. The types of anomalous trichromacy include protanomaly, deuteranomaly and tritanomaly. It is approximately three times more common than dichromacy. Anomalous trichromats exhibit trichromacy, but the color matches they make differ from normal trichromats. In order to match a given spectral yellow light, protanomalous observers need more red light in a red/green mixture than a normal observer, and deuteranomalous observers need more green. This difference can be measured by an instrument called an Anomaloscope, where red and green lights are mixed by a subject to match a yellow light.
There are two major types of color blindness: difficulty distinguishing between red and green, and difficulty distinguishing between blue and yellow. These definitions are based on the phenotype of the partial color blindness. Clinically, it is more common to use a genotypical definition, which describes which cone/opsin is affected.
Red–green color blindness includes protan and deutan CVD. Protan CVD is related to the L-cone and includes protanomaly (anomalous trichromacy) and protanopia (dichromacy). Deutan CVD is related to the M-cone and includes deuteranomaly (anomalous trichromacy) and deuteranopia (dichromacy). The phenotype (visual experience) of deutans and protans is quite similar. Common colors of confusion include red/brown/green/yellow as well as blue/purple. Both forms are almost always symptomatic of congenital red–green color blindness, so affects males disproportionately more than females. This form of color blindness is sometimes referred to as daltonism after John Dalton, who had red–green dichromacy. In some languages, daltonism is still used to describe red–green color blindness.
Blue–yellow color blindness includes tritan CVD. Tritan CVD is related to the S-cone and includes tritanomaly (anomalous trichromacy) and tritanopia (dichromacy). Blue–yellow color blindness is much less common than red–green color blindness, and more often has acquired causes than genetic. Tritans have difficulty discerning between bluish and greenish hues. Tritans have a neutral point at 571 nm (yellowish).
The below table shows the cone complements for different types of human color vision, including those considered color blindness, normal color vision and 'superior' color vision. The cone complement contains the types of cones (or their opsins) expressed by an individual.
Color blindness is any deviation of color vision from normal trichromatic color vision (often as defined by the standard observer) that produces a reduced gamut. Mechanisms for color blindness are related to the functionality of cone cells, and often to the expression of photopsins, the photopigments that 'catch' photons and thereby convert light into chemical signals.
Color vision deficiencies can be classified as inherited or acquired.
Color blindness is typically an inherited genetic disorder. The most common forms of color blindness are associated with the Photopsin genes, but the mapping of the human genome has shown there are many causative mutations that do not directly affect the opsins. Mutations capable of causing color blindness originate from at least 19 different chromosomes and 56 different genes (as shown online at the Online Mendelian Inheritance in Man [OMIM]).
By far the most common form of color blindness is congenital red–green color blindness (Daltonism), which includes protanopia/protanomaly and deuteranopia/deuteranomaly. These conditions are mediated by the OPN1LW and OPN1MW genes, respectively, both on the X chromosome. An 'affected' gene is either missing (as in Protanopia and Deuteranopia - Dichromacy) or is a chimeric gene (as in Protanomaly and Deuteranomaly).
Since the OPN1LW and OPN1MW genes are on the X chromosome, they are sex-linked, and therefore affect males and females disproportionately. Because the color blind 'affected' alleles are recessive, color blindness specifically follows X-linked recessive inheritance. Males have only one X chromosome (XY), and females have two (XX); Because the male only has one of each gene, if it is affected, the male will be color blind. Because a female has two alleles of each gene (one on each chromosome), if only one gene is affected, the dominant normal alleles will "override" the affected, recessive allele and the female will have normal color vision. However, if the female has two mutated alleles, she will still be color blind. This is why there is a disproportionate prevalence of color blindness, with ~8% of males exhibiting color blindness and ~0.5% of females.
Congenital blue–yellow color blindness is a much rarer form of color blindness including tritanopia/tritanomaly. These conditions are mediated by the OPN1SW gene on Chromosome 7 which encodes the S-opsin protein and follows autosomal dominant inheritance. The cause of blue-yellow color blindness is not analogous to the cause of red-green color blindness, i.e. the peak sensitivity of the S-opsin does not shift to longer wavelengths. Rather, there are 6 known point mutations of OPN1SW that degrade the performance of the S-cones. The OPN1SW gene is almost invariant in the human population. Congenital tritan defects are often progressive, with nearly normal trichromatic vision in childhood (e.g. mild tritanomaly) progressing to dichromacy (tritanopia) as the S-cones slowly die. Tritanomaly and tritanopia are therefore different penetrance of the same disease, and some sources have argued that tritanomaly therefore be referred to as incomplete tritanopia.
Several inherited diseases are known to cause color blindness, including achromatopsia, cone dystrophy, Leber's congenital amaurosis and retinitis pigmentosa. These can be congenital or commence in childhood or adulthood. They can be static/stationary or progressive. Progressive diseases often involve deterioration of the retina and other parts of the eye, so often progress from color blindness to more severe visual impairments, up to and including total blindness.
Physical trauma can cause color blindness, either neurologically – brain trauma which produces swelling of the brain in the occipital lobe – or retinally, either acute (e.g. from laser exposure) or chronic (e.g. from ultraviolet light exposure).
Color blindness may also present itself as a symptom of degenerative diseases of the eye, such as cataract and age-related macular degeneration, and as part of the retinal damage caused by diabetes. Vitamin A deficiency may also cause color blindness.
Color blindness may be a side effect of prescription drug use. For example, red–green color blindness can be caused by ethambutol, a drug used in the treatment of tuberculosis. Blue–yellow color blindness can be caused by sildenafil, an active component of Viagra. Hydroxychloroquine can also lead to hydroxychloroquine retinopathy, which includes various color defects. Exposure to chemicals such as styrene or organic solvents can also lead to color vision defects.
Simple colored filters can also create mild color vision deficiencies. John Dalton's original hypothesis for his deuteranopia was actually that the vitreous humor of his eye was discolored:
I was led to conjecture that one of the humours of my eye must be a transparent, but coloured, medium, so constituted as to absorb red and green rays principally... I suppose it must be the vitreous humor.
An autopsy of his eye after his death in 1844 showed this to be definitively untrue, though other filters are possible. Actual physiological examples usually affect the blue–yellow opponent channel and are named Cyanopsia and Xanthopsia, and are most typically an effect of yellowing or removal of the lens.
The opponent channels can also be affected by the prevalence of certain cones in the retinal mosaic. The cones are not equally prevalent and not evenly distributed in the retina. When the number of one of these cone types is significantly reduced, this can also lead to or contribute to a color vision deficiency. This is one of the causes of tritanomaly.
Some people are also unable to distinct between blue and green, which appears to be a combination of culture and exposure to UV-light.
The main method for diagnosing a color vision deficiency is in testing the color vision directly. The Ishihara color test is the test most often used to detect red–green deficiencies and most often recognized by the public. Some tests are clinical in nature, designed to be fast, simple, and effective at identifying broad categories of color blindness. Others focus on precision and are generally available only in academic settings.
While genetic testing cannot directly evaluate a subject's color vision (phenotype), most congenital color vision deficiencies are well-correlated with genotype. Therefore, the genotype can be directly evaluated and used to predict the phenotype. This is especially useful for progressive forms that do not have a strongly color deficient phenotype at a young age. However, it can also be used to sequence the L- and M-Opsins on the X-chromosome, since the most common alleles of these two genes are known and have even been related to exact spectral sensitivities and peak wavelengths. A subject's color vision can therefore be classified through genetic testing, but this is just a prediction of the phenotype, since color vision can be affected by countless non-genetic factors such as your cone mosaic.
Despite much recent improvement in gene therapy for color blindness, there is currently no FDA approved treatment for any form of CVD, and otherwise no cure for CVD currently exists. Management of the condition by using lenses to alleviate symptoms or smartphone apps to aid with daily tasks is possible.
There are three kinds of lenses that an individual can wear that can increase their accuracy in some color related tasks (although none of these will "fix" color blindness or grant the wearer normal color vision):
Many mobile and computer applications have been developed to aid color blind individuals in completing color tasks:
In 2003, a cybernetic device called eyeborg was developed to allow the wearer to hear sounds representing different colors. Achromatopsic artist Neil Harbisson was the first to use such a device in early 2004; the eyeborg allowed him to start painting in color by memorizing the sound corresponding to each color. In 2012, at a TED Conference, Harbisson explained how he could now perceive colors outside the ability of human vision.
Designers can also take color blindness into account when choosing the colors. Here is an example palette to choose from (do not use more than one colour from any column; more at Commons:Creating accessible illustrations and Help:Using colours#Schemes for colour-blind readers):
Color blindness affects a large number of individuals, with protans and deutans being the most common types. In individuals with Northern European ancestry, as many as 8 percent of men and 0.4 percent of women experience congenital color deficiency. Interestingly, even Dalton's very first paper already arrived upon this 8% number:
...it is remarkable that, out of 25 pupils I once had, to whom I explained this subject, 2 were found to agree with me...
During the 17th and 18th century, several philosophers hypothesized that not all individuals perceived colors in the same way:
...there is no reason to suppose a perfect resemblance in the disposition of the Optic Nerve in all Men, since there is an infinite variety in every thing in Nature, and chiefly in those that are Material, 'tis therefore very probable that all Men see not the same Colours in the same Objects.
In the power of conceiving colors, too, there are striking differences among individuals: and, indeed, I am inclined to suspect, that, in the greater number of instances, the supposed defects of sight in this respect ought to be ascribed rather to a defect in the power of conception.
The phenomenon only came to be scientifically studied in 1794, when English chemist John Dalton gave the first account of color blindness in a paper to the Manchester Literary and Philosophical Society, which was published in 1798 as Extraordinary Facts relating to the Vision of Colours: With Observations. Genetic analysis of Dalton's preserved eyeball confirmed him as having deuteranopia in 1995, some 150 years after his death.
Influenced by Dalton, German writer J. W. von Goethe studied color vision abnormalities in 1798 by asking two young subjects to match pairs of colors.
In 1875, the Lagerlunda train crash in Sweden brought color blindness to the forefront. Following the crash, Professor Alarik Frithiof Holmgren, a physiologist, investigated and concluded that the color blindness of the engineer (who had died) had caused the crash. Professor Holmgren then created the first test for color vision using multicolored skeins of wool to detect color blindness and thereby exclude the color blind from jobs in the transportation industry requiring color vision to interpret safety signals. However, there is a claim that there is no firm evidence that color deficiency did cause the collision, or that it might have not been the sole cause.
In 1920, Frederick William Edridge-Green devised an alternative theory of color vision and color blindness based on Newton's classification of 7 fundamental colors (ROYGBIV). Edridge-Green classified color vision based on how many distinct colors a subject could see in the spectrum. Normal subjects were termed hexachromic as they could not discern Indigo. Subjects with superior color vision, who could discern indigo, where heptachromic. The color blind were therefore dichromic (equivalent to dichromacy) or tri-, tetra- or pentachromic (anomalous trichromacy).
In the United States, under federal anti-discrimination laws such as the Americans with Disabilities Act, color vision deficiencies have not been found to constitute a disability that triggers protection from workplace discrimination.
A Brazilian court ruled that people with color blindness are protected by the Inter-American Convention on the Elimination of All Forms of Discrimination against Person with Disabilities. At trial, it was decided that the carriers of color blindness have a right of access to wider knowledge, or the full enjoyment of their human condition.
Color blindness may make it difficult or impossible for a person to engage in certain activities. Persons with color blindness may be legally or practically barred from occupations in which color perception is an essential part of the job (e.g., mixing paint colors), or in which color perception is important for safety (e.g., operating vehicles in response to color-coded signals). This occupational safety principle originates from the aftermath of the 1875 Lagerlunda train crash, which Alarik Frithiof Holmgren blamed on the color blindness of the engineer and created the first occupational screening test (Holmgren's wool test) against the color blind.
...I consider that to [Holmgren] above all others do we owe the present and future control of color-blindness on land and sea, by which life and property are safer, and the risks of travelling less.
Color vision is important for occupations using telephone or computer networking cabling, as the individual wires inside the cables are color-coded using green, orange, brown, blue and white colors. Electronic wiring, transformers, resistors, and capacitors are color-coded as well, using black, brown, red, orange, yellow, green, blue, violet, gray, white, silver, and gold.
Participation, officiating and viewing sporting events can be impacted by color blindness. Professional football players Thomas Delaney and Fabio Carvalho have discussed the difficulties when color clashes occur, and research undertaken by FIFA has shown that enjoyment and player progression can be hampered by issues distinguishing the difference between the pitch and training objects or field markings. Snooker World Champions Mark Williams and Peter Ebdon sometimes need to ask the referee for help distinguishing between the red and brown balls due to their color blindness. Both have played foul shots on notable occasions by potting the wrong ball.
Red–green color blindness can make it difficult to drive, primarily due to the inability to differentiate red–amber–green traffic lights. Protans are further disadvantaged due to the darkened perception of reds, which can make it more difficult to quickly recognize brake lights. In response, some countries have refused to grant driver's licenses to individuals with color blindness:
Although many aspects of aviation depend on color coding, only a few of them are critical enough to be interfered with by some milder types of color blindness. Some examples include color-gun signaling of aircraft that have lost radio communication, color-coded glide-path indications on runways, and the like. Some jurisdictions restrict the issuance of pilot credentials to persons with color blindness for this reason. Restrictions may be partial, allowing color-blind persons to obtain certification but with restrictions, or total, in which case color-blind persons are not permitted to obtain piloting credentials at all.
In the United States, the Federal Aviation Administration requires that pilots be tested for normal color vision as part of their medical clearance in order to obtain the required medical certificate, a prerequisite to obtaining a pilot's certification. If testing reveals color blindness, the applicant may be issued a license with restrictions, such as no night flying and no flying by color signals—such a restriction effectively prevents a pilot from holding certain flying occupations, such as that of an airline pilot, although commercial pilot certification is still possible, and there are a few flying occupations that do not require night flight and thus are still available to those with restrictions due to color blindness (e.g., agricultural aviation). The government allows several types of tests, including medical standard tests (e.g., the Ishihara, Dvorine, and others) and specialized tests oriented specifically to the needs of aviation. If an applicant fails the standard tests, they will receive a restriction on their medical certificate that states: "Not valid for night flying or by color signal control". They may apply to the FAA to take a specialized test, administered by the FAA. Typically, this test is the "color vision light gun test". For this test an FAA inspector will meet the pilot at an airport with an operating control tower. The color signal light gun will be shone at the pilot from the tower, and they must identify the color. If they pass they may be issued a waiver, which states that the color vision test is no longer required during medical examinations. They will then receive a new medical certificate with the restriction removed. This was once a Statement of Demonstrated Ability (SODA), but the SODA was dropped, and converted to a simple waiver (letter) early in the 2000s.
Research published in 2009 carried out by the City University of London's Applied Vision Research Centre, sponsored by the UK's Civil Aviation Authority and the U.S. Federal Aviation Administration, has established a more accurate assessment of color deficiencies in pilot applicants' red/green and yellow–blue color range which could lead to a 35% reduction in the number of prospective pilots who fail to meet the minimum medical threshold. | [
{
"paragraph_id": 0,
"text": "Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone cells in the retina, which mediate color vision. The most common form is caused by a genetic condition called congenital red–green color blindness (including protan and deutan types), which affects up to 1 in 12 males (8%) and 1 in 200 females (0.5%). The condition is more prevalent in males, because the opsin genes responsible are located on the X chromosome. Rarer genetic conditions causing color blindness include congenital blue–yellow color blindness (tritan type), blue cone monochromacy, and achromatopsia. Color blindness can also result from physical or chemical damage to the eye, the optic nerve, or parts of the brain or from medication toxicity. Color vision also naturally degrades in old age.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Diagnosis of color blindness is usually done with a color vision test, such as the Ishihara test. There is no cure for most causes of color blindness. However, gene therapy against some severe conditions causing color blindness are ongoing. Minor forms of color blindness do not significantly affect daily life and people with color blindness automatically develop adaptations and coping mechanisms to compensate for the deficiency. However, diagnosis may allow an individual, or their parents/teachers to actively accommodate the condition. Color blind glasses (e.g. EnChroma) may help people with red–green color blindness at some color tasks, but they do not grant the wearer \"normal color vision\" or the ability to see \"new\" colors. Some mobile apps can use a device's camera to identify colors.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Depending on the jurisdiction, people with color blindness are ineligible for certain careers, such as aircraft pilots, train drivers, police officers, firefighters, and members of the armed forces. The effect of color blindness on artistic ability is controversial, but a number of famous artists are believed to have been color blind.",
"title": ""
},
{
"paragraph_id": 3,
"text": "A person who is color blind will have decreased (or no) color discrimination along the red–green axis, blue–yellow axis, or both. However, the vast majority of people with color blindness are only affected on their red–green axis.",
"title": "Effects"
},
{
"paragraph_id": 4,
"text": "The first indication of color blindness generally consists of a person using the wrong color for an object, such as when painting, or calling a color by the wrong name. The colors that are confused are very consistent among people with the same type of color blindness.",
"title": "Effects"
},
{
"paragraph_id": 5,
"text": "Confusion colors are pairs or groups of colors that will often be mistaken by people with color blindness. Confusion colors for red–green color blindness include:",
"title": "Effects"
},
{
"paragraph_id": 6,
"text": "Confusion colors for tritan include:",
"title": "Effects"
},
{
"paragraph_id": 7,
"text": "These colors of confusion are defined quantitatively by straight confusion lines plotted in CIEXYZ, usually plotted on the corresponding chromaticity diagram. The lines all intersect at a copunctal point, which varies with the type of color blindness. Chromaticities along a confusion line will appear metameric to people with dichromacy of that type. People with trichromacy of that type will see the chromaticities as metameric if they are close enough, depending on the strength of their CVD. For two colors on a confusion line to be metameric, the chromaticities first have to be made isoluminant, meaning equal in lightness. Also, colors that may be isoluminant to the standard observer may not be isoluminant to a person with dichromacy.",
"title": "Effects"
},
{
"paragraph_id": 8,
"text": "Cole describes four color tasks, all of which are impeded to some degree by color blindness:",
"title": "Effects"
},
{
"paragraph_id": 9,
"text": "The following sections describe specific color tasks with which people with color blindness typically have difficulty.",
"title": "Effects"
},
{
"paragraph_id": 10,
"text": "Color blindness causes difficulty with the connotative color tasks associated with selecting or preparing food. Selecting food for ripeness can be difficult. The green–yellow transition of bananas is particularly hard to identify. It can also be difficult to detect bruises, mold or rot on some foods, to determine when meat is done by color, to distinguish some varietals, such as a Braeburn vs. a Granny Smith apple, or to distinguish colors associated with artificial flavors (e.g. jelly beans, sports drinks).",
"title": "Effects"
},
{
"paragraph_id": 11,
"text": "Changes in skin color due to bruising, sunburn, rashes or even blushing are easily missed by people with red–green color blindness.",
"title": "Effects"
},
{
"paragraph_id": 12,
"text": "The colors of traffic lights can be difficult for people with red–green color blindness. This difficulty includes distinguishing red/amber lights from sodium street lamps, distinguishing green lights (closer to cyan) from normal white lights, and distinguishing red from amber lights, especially when there are no positional clues available (see image).",
"title": "Effects"
},
{
"paragraph_id": 13,
"text": "The main coping mechanism to overcome these challenges is to memorize the position of lights. The order of the common triplet traffic light is standardized as red–amber–green from top to bottom or left to right. Cases that deviate from this standard are rare. One such case is a traffic light in Tipperary Hill in Syracuse, New York, which is upside-down (green–amber–red top to bottom) due to the sentiments of its Irish American community. However, the light has been criticized due to the potential hazard it poses for color-blind drivers.",
"title": "Effects"
},
{
"paragraph_id": 14,
"text": "There are other several features of traffic lights available that help accommodate people with color blindness. British Rail signals use more easily identifiable colors: The red is blood red, the amber is yellow and the green is a bluish color. Most British road traffic lights are mounted vertically on a black rectangle with a white border (forming a \"sighting board\"), so that drivers can more easily look for the position of the light. In the eastern provinces of Canada, traffic lights are sometimes differentiated by shape in addition to color: square for red, diamond for yellow, and circle for green (see image).",
"title": "Effects"
},
{
"paragraph_id": 15,
"text": "Navigation lights in marine and aviation settings employ red and green lights to signal the relative position of other ships or aircraft. Railway signal lights also rely heavily on red–green–yellow colors. In both cases, these color combinations can be difficult for people with red–green color blindness. Lantern Tests are a common means of simulating these light sources to determine not necessarily whether someone is color blind, but whether they can functionally distinguish these specific signal colors. Those who cannot pass this test are generally completely restricted from working on aircraft, ships or rail.",
"title": "Effects"
},
{
"paragraph_id": 16,
"text": "Color analysis is the analysis of color in its use in fashion, to determine personal color combinations that are most aesthetically pleasing. Colors to combine can include clothing, accessories, makeup, hair color, skin color, eye color, etc. Color analysis involves many aesthetic and comparative color task that can be difficult for people with color blindness.",
"title": "Effects"
},
{
"paragraph_id": 17,
"text": "Inability to distinguish color does not necessarily preclude the ability to become a celebrated artist. The 20th century expressionist painter Clifton Pugh, three-time winner of Australia's Archibald Prize, on biographical, gene inheritance and other grounds has been identified as a person with protanopia. 19th century French artist Charles Méryon became successful by concentrating on etching rather than painting after he was diagnosed as having a red–green deficiency. Jin Kim's red–green color blindness did not stop him from becoming first an animator and later a character designer with Walt Disney Animation Studios.",
"title": "Effects"
},
{
"paragraph_id": 18,
"text": "People with deuteranomaly are better at distinguishing shades of khaki, which may be advantageous when looking for predators, food, or camouflaged objects hidden among foliage. People with dichromacy tend to learn to use texture and shape clues and so may be able to penetrate camouflage that has been designed to deceive individuals with normal color vision.",
"title": "Effects"
},
{
"paragraph_id": 19,
"text": "Some tentative evidence finds that people with color blindness are better at penetrating certain color camouflages. Such findings may give an evolutionary reason for the high rate of red–green color blindness. There is also a study suggesting that people with some types of color blindness can distinguish colors that people with normal color vision are not able to distinguish. In World War II, color blind observers were used to penetrate camouflage.",
"title": "Effects"
},
{
"paragraph_id": 20,
"text": "In the presence of chromatic noise, people with color blindness are more capable of seeing a luminous signal, as long as the chromatic noise appears metameric to them. This is the effect behind most \"reverse\" Pseudoisochromatic plates (e.g. \"hidden digit\" Ishihara plates) that are discernible to people with color blindness but unreadable to people with typical color perception.",
"title": "Effects"
},
{
"paragraph_id": 21,
"text": "Color codes are useful tools for designers to convey information. The interpretation of this information requires users to perform a variety of Color Tasks, usually comparative but also sometimes connotative or denotative. However, these tasks are often problematic for people with color blindness when design of the color code has not followed best practices for accessibility. For example, one of the most ubiquitous connotative color codes is the \"red means bad and green means good\" or similar systems, based on the classic signal light colors. However, this color coding will almost always be undifferentiable to people with either deutan or protan CVD, and therefore should be avoided or supplemented with a parallel connotative system (symbols, smileys, etc.).",
"title": "Effects"
},
{
"paragraph_id": 22,
"text": "Good practices to ensure design is accessible to people with color blindness include:",
"title": "Effects"
},
{
"paragraph_id": 23,
"text": "A common task for designers is to select a subset of colors (qualitative colormap) that are as mutually differentiable as possible (salient). For example, player pieces in a board game should be as different as possible.",
"title": "Effects"
},
{
"paragraph_id": 24,
"text": "Classic advice suggests using Brewer palettes, but several of these are not actually accessible to people with color blindness.",
"title": "Effects"
},
{
"paragraph_id": 25,
"text": "Unfortunately, the colors with the greatest contrast to the red–green color blind tend to be colors of confusion to the blue–yellow color blind, and vice versa. However, since red–green is much more prevalent than blue–yellow CVD, design should generally prioritize those users (people with deutan CVD then protan CVD).",
"title": "Effects"
},
{
"paragraph_id": 26,
"text": "A common task for data visualization is to represent a color scale, or sequential colormap, often in the form of a heat map or choropleth. Several scales are designed with special consideration for people with color blindness and are widespread in academia, including Cividis, Viridis and Parula. These comprise a light-to-dark scale superimposed on a yellow-to-blue scale, making them monotonic and perceptually uniform to all forms of color vision.",
"title": "Effects"
},
{
"paragraph_id": 27,
"text": "Much terminology has existed and does exist for the classification of color blindness, but the typical classification for color blindness follows the von Kries classifications, which uses severity and affected cone for naming.",
"title": "Classification"
},
{
"paragraph_id": 28,
"text": "Based on clinical appearance, color blindness may be described as total or partial. Total color blindness (monochromacy) is much less common than partial color blindness. Partial color blindness includes dichromacy and anomalous trichromacy, but is often clinically defined as mild, moderate or strong.",
"title": "Classification"
},
{
"paragraph_id": 29,
"text": "Monochromacy is often called total color blindness since there is no ability to see color. Although the term may refer to acquired disorders such as cerebral achromatopsia, it typically refers to congenital color vision disorders, namely rod monochromacy and blue cone monochromacy).",
"title": "Classification"
},
{
"paragraph_id": 30,
"text": "In cerebral achromatopsia, a person cannot perceive colors even though the eyes are capable of distinguishing them. Some sources do not consider these to be true color blindness, because the failure is of perception, not of vision. They are forms of visual agnosia.",
"title": "Classification"
},
{
"paragraph_id": 31,
"text": "Monochromacy is the condition of possessing only a single channel for conveying information about color. Monochromats are unable to distinguish any colors and perceive only variations in brightness. Congenital monochromacy occurs in two primary forms:",
"title": "Classification"
},
{
"paragraph_id": 32,
"text": "Dichromats can match any color they see with some mixture of just two primary colors (in contrast to those with normal sight (trichromats) who can distinguish three primary colors). Dichromats usually know they have a color vision problem, and it can affect their daily lives. Dichromacy in humans includes protanopia, deuteranopia, and tritanopia. Out of the male population, 2% have severe difficulties distinguishing between red, orange, yellow, and green. (Orange and yellow are different combinations of red and green light.) Colors in this range, which appear very different to a normal viewer, appear to a dichromat to be the same or a similar color. The terms protanopia, deuteranopia, and tritanopia come from Greek, and respectively mean \"inability to see (anopia) with the first (prot-), second (deuter-), or third (trit-) [cone]\".",
"title": "Classification"
},
{
"paragraph_id": 33,
"text": "Anomalous trichromacy is the mildest type of color deficiency, but the severity ranges from almost dichromacy (strong) to almost normal trichromacy (mild). In fact, many mild anomalous trichromats have very little difficulty carrying out tasks that require normal color vision and some may not even be aware that they have a color vision deficiency. The types of anomalous trichromacy include protanomaly, deuteranomaly and tritanomaly. It is approximately three times more common than dichromacy. Anomalous trichromats exhibit trichromacy, but the color matches they make differ from normal trichromats. In order to match a given spectral yellow light, protanomalous observers need more red light in a red/green mixture than a normal observer, and deuteranomalous observers need more green. This difference can be measured by an instrument called an Anomaloscope, where red and green lights are mixed by a subject to match a yellow light.",
"title": "Classification"
},
{
"paragraph_id": 34,
"text": "There are two major types of color blindness: difficulty distinguishing between red and green, and difficulty distinguishing between blue and yellow. These definitions are based on the phenotype of the partial color blindness. Clinically, it is more common to use a genotypical definition, which describes which cone/opsin is affected.",
"title": "Classification"
},
{
"paragraph_id": 35,
"text": "Red–green color blindness includes protan and deutan CVD. Protan CVD is related to the L-cone and includes protanomaly (anomalous trichromacy) and protanopia (dichromacy). Deutan CVD is related to the M-cone and includes deuteranomaly (anomalous trichromacy) and deuteranopia (dichromacy). The phenotype (visual experience) of deutans and protans is quite similar. Common colors of confusion include red/brown/green/yellow as well as blue/purple. Both forms are almost always symptomatic of congenital red–green color blindness, so affects males disproportionately more than females. This form of color blindness is sometimes referred to as daltonism after John Dalton, who had red–green dichromacy. In some languages, daltonism is still used to describe red–green color blindness.",
"title": "Classification"
},
{
"paragraph_id": 36,
"text": "",
"title": "Classification"
},
{
"paragraph_id": 37,
"text": "",
"title": "Classification"
},
{
"paragraph_id": 38,
"text": "Blue–yellow color blindness includes tritan CVD. Tritan CVD is related to the S-cone and includes tritanomaly (anomalous trichromacy) and tritanopia (dichromacy). Blue–yellow color blindness is much less common than red–green color blindness, and more often has acquired causes than genetic. Tritans have difficulty discerning between bluish and greenish hues. Tritans have a neutral point at 571 nm (yellowish).",
"title": "Classification"
},
{
"paragraph_id": 39,
"text": "",
"title": "Classification"
},
{
"paragraph_id": 40,
"text": "",
"title": "Classification"
},
{
"paragraph_id": 41,
"text": "The below table shows the cone complements for different types of human color vision, including those considered color blindness, normal color vision and 'superior' color vision. The cone complement contains the types of cones (or their opsins) expressed by an individual.",
"title": "Classification"
},
{
"paragraph_id": 42,
"text": "Color blindness is any deviation of color vision from normal trichromatic color vision (often as defined by the standard observer) that produces a reduced gamut. Mechanisms for color blindness are related to the functionality of cone cells, and often to the expression of photopsins, the photopigments that 'catch' photons and thereby convert light into chemical signals.",
"title": "Causes"
},
{
"paragraph_id": 43,
"text": "Color vision deficiencies can be classified as inherited or acquired.",
"title": "Causes"
},
{
"paragraph_id": 44,
"text": "Color blindness is typically an inherited genetic disorder. The most common forms of color blindness are associated with the Photopsin genes, but the mapping of the human genome has shown there are many causative mutations that do not directly affect the opsins. Mutations capable of causing color blindness originate from at least 19 different chromosomes and 56 different genes (as shown online at the Online Mendelian Inheritance in Man [OMIM]).",
"title": "Causes"
},
{
"paragraph_id": 45,
"text": "By far the most common form of color blindness is congenital red–green color blindness (Daltonism), which includes protanopia/protanomaly and deuteranopia/deuteranomaly. These conditions are mediated by the OPN1LW and OPN1MW genes, respectively, both on the X chromosome. An 'affected' gene is either missing (as in Protanopia and Deuteranopia - Dichromacy) or is a chimeric gene (as in Protanomaly and Deuteranomaly).",
"title": "Causes"
},
{
"paragraph_id": 46,
"text": "Since the OPN1LW and OPN1MW genes are on the X chromosome, they are sex-linked, and therefore affect males and females disproportionately. Because the color blind 'affected' alleles are recessive, color blindness specifically follows X-linked recessive inheritance. Males have only one X chromosome (XY), and females have two (XX); Because the male only has one of each gene, if it is affected, the male will be color blind. Because a female has two alleles of each gene (one on each chromosome), if only one gene is affected, the dominant normal alleles will \"override\" the affected, recessive allele and the female will have normal color vision. However, if the female has two mutated alleles, she will still be color blind. This is why there is a disproportionate prevalence of color blindness, with ~8% of males exhibiting color blindness and ~0.5% of females.",
"title": "Causes"
},
{
"paragraph_id": 47,
"text": "Congenital blue–yellow color blindness is a much rarer form of color blindness including tritanopia/tritanomaly. These conditions are mediated by the OPN1SW gene on Chromosome 7 which encodes the S-opsin protein and follows autosomal dominant inheritance. The cause of blue-yellow color blindness is not analogous to the cause of red-green color blindness, i.e. the peak sensitivity of the S-opsin does not shift to longer wavelengths. Rather, there are 6 known point mutations of OPN1SW that degrade the performance of the S-cones. The OPN1SW gene is almost invariant in the human population. Congenital tritan defects are often progressive, with nearly normal trichromatic vision in childhood (e.g. mild tritanomaly) progressing to dichromacy (tritanopia) as the S-cones slowly die. Tritanomaly and tritanopia are therefore different penetrance of the same disease, and some sources have argued that tritanomaly therefore be referred to as incomplete tritanopia.",
"title": "Causes"
},
{
"paragraph_id": 48,
"text": "Several inherited diseases are known to cause color blindness, including achromatopsia, cone dystrophy, Leber's congenital amaurosis and retinitis pigmentosa. These can be congenital or commence in childhood or adulthood. They can be static/stationary or progressive. Progressive diseases often involve deterioration of the retina and other parts of the eye, so often progress from color blindness to more severe visual impairments, up to and including total blindness.",
"title": "Causes"
},
{
"paragraph_id": 49,
"text": "Physical trauma can cause color blindness, either neurologically – brain trauma which produces swelling of the brain in the occipital lobe – or retinally, either acute (e.g. from laser exposure) or chronic (e.g. from ultraviolet light exposure).",
"title": "Causes"
},
{
"paragraph_id": 50,
"text": "Color blindness may also present itself as a symptom of degenerative diseases of the eye, such as cataract and age-related macular degeneration, and as part of the retinal damage caused by diabetes. Vitamin A deficiency may also cause color blindness.",
"title": "Causes"
},
{
"paragraph_id": 51,
"text": "Color blindness may be a side effect of prescription drug use. For example, red–green color blindness can be caused by ethambutol, a drug used in the treatment of tuberculosis. Blue–yellow color blindness can be caused by sildenafil, an active component of Viagra. Hydroxychloroquine can also lead to hydroxychloroquine retinopathy, which includes various color defects. Exposure to chemicals such as styrene or organic solvents can also lead to color vision defects.",
"title": "Causes"
},
{
"paragraph_id": 52,
"text": "Simple colored filters can also create mild color vision deficiencies. John Dalton's original hypothesis for his deuteranopia was actually that the vitreous humor of his eye was discolored:",
"title": "Causes"
},
{
"paragraph_id": 53,
"text": "I was led to conjecture that one of the humours of my eye must be a transparent, but coloured, medium, so constituted as to absorb red and green rays principally... I suppose it must be the vitreous humor.",
"title": "Causes"
},
{
"paragraph_id": 54,
"text": "An autopsy of his eye after his death in 1844 showed this to be definitively untrue, though other filters are possible. Actual physiological examples usually affect the blue–yellow opponent channel and are named Cyanopsia and Xanthopsia, and are most typically an effect of yellowing or removal of the lens.",
"title": "Causes"
},
{
"paragraph_id": 55,
"text": "The opponent channels can also be affected by the prevalence of certain cones in the retinal mosaic. The cones are not equally prevalent and not evenly distributed in the retina. When the number of one of these cone types is significantly reduced, this can also lead to or contribute to a color vision deficiency. This is one of the causes of tritanomaly.",
"title": "Causes"
},
{
"paragraph_id": 56,
"text": "Some people are also unable to distinct between blue and green, which appears to be a combination of culture and exposure to UV-light.",
"title": "Causes"
},
{
"paragraph_id": 57,
"text": "The main method for diagnosing a color vision deficiency is in testing the color vision directly. The Ishihara color test is the test most often used to detect red–green deficiencies and most often recognized by the public. Some tests are clinical in nature, designed to be fast, simple, and effective at identifying broad categories of color blindness. Others focus on precision and are generally available only in academic settings.",
"title": "Diagnosis"
},
{
"paragraph_id": 58,
"text": "While genetic testing cannot directly evaluate a subject's color vision (phenotype), most congenital color vision deficiencies are well-correlated with genotype. Therefore, the genotype can be directly evaluated and used to predict the phenotype. This is especially useful for progressive forms that do not have a strongly color deficient phenotype at a young age. However, it can also be used to sequence the L- and M-Opsins on the X-chromosome, since the most common alleles of these two genes are known and have even been related to exact spectral sensitivities and peak wavelengths. A subject's color vision can therefore be classified through genetic testing, but this is just a prediction of the phenotype, since color vision can be affected by countless non-genetic factors such as your cone mosaic.",
"title": "Diagnosis"
},
{
"paragraph_id": 59,
"text": "Despite much recent improvement in gene therapy for color blindness, there is currently no FDA approved treatment for any form of CVD, and otherwise no cure for CVD currently exists. Management of the condition by using lenses to alleviate symptoms or smartphone apps to aid with daily tasks is possible.",
"title": "Management"
},
{
"paragraph_id": 60,
"text": "There are three kinds of lenses that an individual can wear that can increase their accuracy in some color related tasks (although none of these will \"fix\" color blindness or grant the wearer normal color vision):",
"title": "Management"
},
{
"paragraph_id": 61,
"text": "Many mobile and computer applications have been developed to aid color blind individuals in completing color tasks:",
"title": "Management"
},
{
"paragraph_id": 62,
"text": "In 2003, a cybernetic device called eyeborg was developed to allow the wearer to hear sounds representing different colors. Achromatopsic artist Neil Harbisson was the first to use such a device in early 2004; the eyeborg allowed him to start painting in color by memorizing the sound corresponding to each color. In 2012, at a TED Conference, Harbisson explained how he could now perceive colors outside the ability of human vision.",
"title": "Management"
},
{
"paragraph_id": 63,
"text": "Designers can also take color blindness into account when choosing the colors. Here is an example palette to choose from (do not use more than one colour from any column; more at Commons:Creating accessible illustrations and Help:Using colours#Schemes for colour-blind readers):",
"title": "Management"
},
{
"paragraph_id": 64,
"text": "Color blindness affects a large number of individuals, with protans and deutans being the most common types. In individuals with Northern European ancestry, as many as 8 percent of men and 0.4 percent of women experience congenital color deficiency. Interestingly, even Dalton's very first paper already arrived upon this 8% number:",
"title": "Epidemiology"
},
{
"paragraph_id": 65,
"text": "...it is remarkable that, out of 25 pupils I once had, to whom I explained this subject, 2 were found to agree with me...",
"title": "Epidemiology"
},
{
"paragraph_id": 66,
"text": "During the 17th and 18th century, several philosophers hypothesized that not all individuals perceived colors in the same way:",
"title": "History"
},
{
"paragraph_id": 67,
"text": "...there is no reason to suppose a perfect resemblance in the disposition of the Optic Nerve in all Men, since there is an infinite variety in every thing in Nature, and chiefly in those that are Material, 'tis therefore very probable that all Men see not the same Colours in the same Objects.",
"title": "History"
},
{
"paragraph_id": 68,
"text": "In the power of conceiving colors, too, there are striking differences among individuals: and, indeed, I am inclined to suspect, that, in the greater number of instances, the supposed defects of sight in this respect ought to be ascribed rather to a defect in the power of conception.",
"title": "History"
},
{
"paragraph_id": 69,
"text": "The phenomenon only came to be scientifically studied in 1794, when English chemist John Dalton gave the first account of color blindness in a paper to the Manchester Literary and Philosophical Society, which was published in 1798 as Extraordinary Facts relating to the Vision of Colours: With Observations. Genetic analysis of Dalton's preserved eyeball confirmed him as having deuteranopia in 1995, some 150 years after his death.",
"title": "History"
},
{
"paragraph_id": 70,
"text": "Influenced by Dalton, German writer J. W. von Goethe studied color vision abnormalities in 1798 by asking two young subjects to match pairs of colors.",
"title": "History"
},
{
"paragraph_id": 71,
"text": "In 1875, the Lagerlunda train crash in Sweden brought color blindness to the forefront. Following the crash, Professor Alarik Frithiof Holmgren, a physiologist, investigated and concluded that the color blindness of the engineer (who had died) had caused the crash. Professor Holmgren then created the first test for color vision using multicolored skeins of wool to detect color blindness and thereby exclude the color blind from jobs in the transportation industry requiring color vision to interpret safety signals. However, there is a claim that there is no firm evidence that color deficiency did cause the collision, or that it might have not been the sole cause.",
"title": "History"
},
{
"paragraph_id": 72,
"text": "In 1920, Frederick William Edridge-Green devised an alternative theory of color vision and color blindness based on Newton's classification of 7 fundamental colors (ROYGBIV). Edridge-Green classified color vision based on how many distinct colors a subject could see in the spectrum. Normal subjects were termed hexachromic as they could not discern Indigo. Subjects with superior color vision, who could discern indigo, where heptachromic. The color blind were therefore dichromic (equivalent to dichromacy) or tri-, tetra- or pentachromic (anomalous trichromacy).",
"title": "History"
},
{
"paragraph_id": 73,
"text": "In the United States, under federal anti-discrimination laws such as the Americans with Disabilities Act, color vision deficiencies have not been found to constitute a disability that triggers protection from workplace discrimination.",
"title": "Rights"
},
{
"paragraph_id": 74,
"text": "A Brazilian court ruled that people with color blindness are protected by the Inter-American Convention on the Elimination of All Forms of Discrimination against Person with Disabilities. At trial, it was decided that the carriers of color blindness have a right of access to wider knowledge, or the full enjoyment of their human condition.",
"title": "Rights"
},
{
"paragraph_id": 75,
"text": "Color blindness may make it difficult or impossible for a person to engage in certain activities. Persons with color blindness may be legally or practically barred from occupations in which color perception is an essential part of the job (e.g., mixing paint colors), or in which color perception is important for safety (e.g., operating vehicles in response to color-coded signals). This occupational safety principle originates from the aftermath of the 1875 Lagerlunda train crash, which Alarik Frithiof Holmgren blamed on the color blindness of the engineer and created the first occupational screening test (Holmgren's wool test) against the color blind.",
"title": "Rights"
},
{
"paragraph_id": 76,
"text": "...I consider that to [Holmgren] above all others do we owe the present and future control of color-blindness on land and sea, by which life and property are safer, and the risks of travelling less.",
"title": "Rights"
},
{
"paragraph_id": 77,
"text": "Color vision is important for occupations using telephone or computer networking cabling, as the individual wires inside the cables are color-coded using green, orange, brown, blue and white colors. Electronic wiring, transformers, resistors, and capacitors are color-coded as well, using black, brown, red, orange, yellow, green, blue, violet, gray, white, silver, and gold.",
"title": "Rights"
},
{
"paragraph_id": 78,
"text": "Participation, officiating and viewing sporting events can be impacted by color blindness. Professional football players Thomas Delaney and Fabio Carvalho have discussed the difficulties when color clashes occur, and research undertaken by FIFA has shown that enjoyment and player progression can be hampered by issues distinguishing the difference between the pitch and training objects or field markings. Snooker World Champions Mark Williams and Peter Ebdon sometimes need to ask the referee for help distinguishing between the red and brown balls due to their color blindness. Both have played foul shots on notable occasions by potting the wrong ball.",
"title": "Rights"
},
{
"paragraph_id": 79,
"text": "Red–green color blindness can make it difficult to drive, primarily due to the inability to differentiate red–amber–green traffic lights. Protans are further disadvantaged due to the darkened perception of reds, which can make it more difficult to quickly recognize brake lights. In response, some countries have refused to grant driver's licenses to individuals with color blindness:",
"title": "Rights"
},
{
"paragraph_id": 80,
"text": "Although many aspects of aviation depend on color coding, only a few of them are critical enough to be interfered with by some milder types of color blindness. Some examples include color-gun signaling of aircraft that have lost radio communication, color-coded glide-path indications on runways, and the like. Some jurisdictions restrict the issuance of pilot credentials to persons with color blindness for this reason. Restrictions may be partial, allowing color-blind persons to obtain certification but with restrictions, or total, in which case color-blind persons are not permitted to obtain piloting credentials at all.",
"title": "Rights"
},
{
"paragraph_id": 81,
"text": "In the United States, the Federal Aviation Administration requires that pilots be tested for normal color vision as part of their medical clearance in order to obtain the required medical certificate, a prerequisite to obtaining a pilot's certification. If testing reveals color blindness, the applicant may be issued a license with restrictions, such as no night flying and no flying by color signals—such a restriction effectively prevents a pilot from holding certain flying occupations, such as that of an airline pilot, although commercial pilot certification is still possible, and there are a few flying occupations that do not require night flight and thus are still available to those with restrictions due to color blindness (e.g., agricultural aviation). The government allows several types of tests, including medical standard tests (e.g., the Ishihara, Dvorine, and others) and specialized tests oriented specifically to the needs of aviation. If an applicant fails the standard tests, they will receive a restriction on their medical certificate that states: \"Not valid for night flying or by color signal control\". They may apply to the FAA to take a specialized test, administered by the FAA. Typically, this test is the \"color vision light gun test\". For this test an FAA inspector will meet the pilot at an airport with an operating control tower. The color signal light gun will be shone at the pilot from the tower, and they must identify the color. If they pass they may be issued a waiver, which states that the color vision test is no longer required during medical examinations. They will then receive a new medical certificate with the restriction removed. This was once a Statement of Demonstrated Ability (SODA), but the SODA was dropped, and converted to a simple waiver (letter) early in the 2000s.",
"title": "Rights"
},
{
"paragraph_id": 82,
"text": "Research published in 2009 carried out by the City University of London's Applied Vision Research Centre, sponsored by the UK's Civil Aviation Authority and the U.S. Federal Aviation Administration, has established a more accurate assessment of color deficiencies in pilot applicants' red/green and yellow–blue color range which could lead to a 35% reduction in the number of prospective pilots who fail to meet the minimum medical threshold.",
"title": "Rights"
}
] | Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone cells in the retina, which mediate color vision. The most common form is caused by a genetic condition called congenital red–green color blindness, which affects up to 1 in 12 males (8%) and 1 in 200 females (0.5%). The condition is more prevalent in males, because the opsin genes responsible are located on the X chromosome. Rarer genetic conditions causing color blindness include congenital blue–yellow color blindness, blue cone monochromacy, and achromatopsia. Color blindness can also result from physical or chemical damage to the eye, the optic nerve, or parts of the brain or from medication toxicity. Color vision also naturally degrades in old age. Diagnosis of color blindness is usually done with a color vision test, such as the Ishihara test. There is no cure for most causes of color blindness. However, gene therapy against some severe conditions causing color blindness are ongoing. Minor forms of color blindness do not significantly affect daily life and people with color blindness automatically develop adaptations and coping mechanisms to compensate for the deficiency. However, diagnosis may allow an individual, or their parents/teachers to actively accommodate the condition. Color blind glasses may help people with red–green color blindness at some color tasks, but they do not grant the wearer "normal color vision" or the ability to see "new" colors. Some mobile apps can use a device's camera to identify colors. Depending on the jurisdiction, people with color blindness are ineligible for certain careers, such as aircraft pilots, train drivers, police officers, firefighters, and members of the armed forces. The effect of color blindness on artistic ability is controversial, but a number of famous artists are believed to have been color blind. | 2001-12-09T18:00:07Z | 2023-12-24T23:26:20Z | [
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] | https://en.wikipedia.org/wiki/Color_blindness |
7,398 | Computer security | Computer security, cybersecurity, digital security or information technology security (IT security) is the protection of computer systems and networks from attacks by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide.
The field is significant due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi. Also, due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, elections, and finance.
A vulnerability is a weakness in design, implementation, operation, or internal control of a computer or system. Most of the vulnerabilities that have been discovered are documented in the Common Vulnerabilities and Exposures (CVE) database. An exploitable vulnerability is one for which at least one working attack or exploit exists. Vulnerabilities can be researched, reverse-engineered, hunted, or exploited using automated tools or customized scripts.
Various people or parties are vulnerable to cyber attacks, however different groups are likely to experience different types of attacks more than others.
In April 2023 the United Kingdom Department for Science, Innovation & Technology realised a report on cyber attacks over the last 12 months. They surveyed 2,263 UK businesses, 1,174 UK registered charities and 554 education institutions. The research found that "32% of businesses and 24% of charities overall recall any breaches or attacks from the last 12 months." This figures were much higher for "medium businesses (59%), large businesses (69%) and high-income charities with £500,000 or more in annual income (56%)." Yet, although medium or large businesses are more often the victims, since larger companies have generally improved their security over the last decade, small and midsize businesses (SMBs) have also become increasing vulnerable as they often "do not have advanced tools to defend the business." SMBs are most likely to be affected by malware, ransomware, phishing, man-in-the-middle attacks, and Denial-of Service (DoS) Attacks.
Normal people working for a business or simply using the internet are most likely to be affected by "un-targeted" cyber attacks. These are where attackers indiscriminately target as many devices, services or users as possible. They do this using techniques that take advantage of the "openness" of the Internet. These strategies mostly include phishing, ransomware, water holing and scanning.
To secure a computer system, it is important to understand the attacks that can be made against it, and these threats can typically be classified into one of the following categories:
A backdoor in a computer system, a cryptosystem, or an algorithm, is any secret method of bypassing normal authentication or security controls. These weaknesses may exist for many reasons, including original design or poor configuration. Due to the nature of backdoors, they are of greater concern to companies and databases as opposed to individuals.
Backdoors may be added by an authorized party to allow some legitimate access, or by an attacker for malicious reasons. However, criminals often use malware to install backdoors, giving them remote administrative access to a system. Once they have access, cybercriminals can "modify files, steal personal information, install unwanted software, and even take control of the entire computer."
Backdoors can be very hard to detect, and are usually discovered by someone who has access to the application source code or intimate knowledge of the operating system of the computer.
Denial of service attacks (DoS) are designed to make a machine or network resource unavailable to its intended users. Attackers can deny service to individual victims, such as by deliberately entering a wrong password enough consecutive times to cause the victim's account to be locked, or they may overload the capabilities of a machine or network and block all users at once. While a network attack from a single IP address can be blocked by adding a new firewall rule, many forms of Distributed denial of service (DDoS) attacks are possible, where the attack comes from a large number of points – and defending is much more difficult. Such attacks can originate from the zombie computers of a botnet or from a range of other possible techniques, including distributed reflective denial of service (DRDoS), where innocent systems are fooled into sending traffic to the victim. With such attacks, the amplification factor makes the attack easier for the attacker because they have to use little bandwidth themselves.
To understand why attackers may carry out these attacks, see the 'attacker motivation' section.
A direct-access attack is when an unauthorized user (an attacker) gains physical access to a computer, most likely to directly copy data from it or to steal information. Attackers may also compromise security by making operating system modifications, installing software worms, keyloggers, covert listening devices or using wireless microphones. Even when the system is protected by standard security measures, these may be bypassed by booting another operating system or tool from a CD-ROM or other bootable media. Disk encryption and Trusted Platform Module are designed to prevent these attacks.
Direct service attackers are related in concept to direct memory attacks that allows an attacker to gain direct access to a computer's memory. The attacks "take advantage of a feature of modern computers that allow certain devices, such as external hard drives, graphics cards or network cards, to access the computer's memory directly."
To help prevent these attacks, computer users must ensure that they have a strong passwords, that their computer is locked at all times when they are not using it, and that they keep their computer with them at all times when traveling.
Eavesdropping is the act of surreptitiously listening to a private computer conversation (communication), usually between hosts on a network. It typically occurs when a user connects to a network where traffic is not secured or encrypted and sends sensitive business data to a colleague, which when listened to by an attacker could be exploited. Data transmitted across an "open network" allows an attacker to exploit a vulnerability and intercept it via various methods.
Unlike malware, direct-access attacks, or other forms of cyber attacks, eavesdropping attacks are unlikely to negatively affect the performance of networks or devices, making them difficult to notice. In fact, "the attacker does not need to have any ongoing connection to the software at all. He or she can insert the software onto a compromised device, perhaps by direct insertion or perhaps by a virus or other malware, and then come back some time later to retrieve any data that is found or trigger the software to send the data at some determined time."
Using a virtual private network (VPN), which encrypts data between two points, is one of the most common forms of protection against eavesdropping. Using the best form of encryption possible for wireless networks is best practice, as well as using HTTPS instead of unencrypted HTTP.
Programs such as Carnivore and NarusInSight have been used by the Federal Bureau of Investigation (FBI) and NSA to eavesdrop on the systems of internet service providers. Even machines that operate as a closed system (i.e., with no contact with the outside world) can be eavesdropped upon by monitoring the faint electromagnetic transmissions generated by the hardware. TEMPEST is a specification by the NSA referring to these attacks.
Malicious software (malware) is any software code or computer program "intentionally written to harm a computer system or its users." Once present on a computer, it can leak sensitive details such as personal information, business information and passwords, can give control of the system to the attacker, and can corrupt or delete data permanently. Another type of malware is ransomware, which is when "malware installs itself onto a victim's machine, encrypts their files, and then turns around and demands a ransom (usually in Bitcoin) to return that data to the user."
Types of malware include some of the following:
Surfacing in 2017, a new class of multi-vector, polymorphic cyber threats combined several types of attacks and changed form to avoid cybersecurity controls as they spread.
Multi-vector polymorphic attacks, as the name describes, are both multi-vectored and polymorphic. Firstly, they are a singular offensive that involves multiple methods of attack. In this sense, they are “multi-vectored (i.e. the attack can use multiple means of propagation such as via the Web, email and applications." However, they are also multi-staged, meaning that “they can infiltrate networks and move laterally inside the network.” The attacks can be polymorphic, meaning that the cyberattacks used such as viruses, worms or trojans “constantly change (“morph”) making it nearly impossible to detect them using signature-based defences.”
Phishing is the attempt of acquiring sensitive information such as usernames, passwords, and credit card details directly from users by deceiving the users. Phishing is typically carried out by email spoofing, instant messaging, text message, or on a phone call, and it often directs users to enter details at a fake website whose look and feel are almost identical to the legitimate one. The fake website often asks for personal information, such as login details and passwords. This information can then be used to gain access to the individual's real account on the real website.
Preying on a victim's trust, phishing can be classified as a form of social engineering. Attackers are using creative ways to gain access to real accounts. A common scam is for attackers to send fake electronic invoices to individuals showing that they recently purchased music, apps, or others, and instructing them to click on a link if the purchases were not authorized. A more strategic type of phishing is spear-phishing which leverages personal or organization-specific details to make the attacker appear like a trusted source. Spear-phishing attacks target specific individuals, rather than the broad net cast by phishing attempts.
Privilege escalation describes a situation where an attacker with some level of restricted access is able to, without authorization, elevate their privileges or access level. For example, a standard computer user may be able to exploit a vulnerability in the system to gain access to restricted data; or even become root and have full unrestricted access to a system. The severity of attacks can range from attacks simply sending an unsolicited email to a ransomware attack on large amounts of data. Privilege escalation usually starts with social engineering techniques, often phishing.
Privilege escalation can be separated into to strategies, horizontal and vertical privilege escalation:
Any computational system affects its environment in some form. This effect it has on its environment includes a wide range of criteria, which can range from electromagnetic radiation to residual effect on RAM cells which as a consequence make a Cold boot attack possible, to hardware implementation faults that allow for access and or guessing of other values that normally should be inaccessible. In Side-channel attack scenarios, the attacker would gather such information about a system or network to guess its internal state and as a result access the information which is assumed by the victim to be secure.
Social engineering, in the context of computer security, aims to convince a user to disclose secrets such as passwords, card numbers, etc. or grant physical access by, for example, impersonating a senior executive, bank, a contractor, or a customer. This generally involves exploiting people's trust, and relying on their cognitive biases. A common scam involves emails sent to accounting and finance department personnel, impersonating their CEO and urgently requesting some action. One of the main techniques of social engineering are phishing attacks.
In early 2016, the FBI reported that such business email compromise (BEC) scams had cost US businesses more than $2 billion in about two years.
In May 2016, the Milwaukee Bucks NBA team was the victim of this type of cyber scam with a perpetrator impersonating the team's president Peter Feigin, resulting in the handover of all the team's employees' 2015 W-2 tax forms.
Spoofing is an act of pretending to be a valid entity through the falsification of data (such as an IP address or username), in order to gain access to information or resources that one is otherwise unauthorized to obtain. Spoofing is closely related to phishing. There are several types of spoofing, including:
In 2018, the cybersecurity firm Trellix published research on the life-threatening risk of spoofing in the healthcare industry.
Tampering describes a malicious modification or alteration of data. An intentional but unauthorized act resulting in the modification of a system, components of systems, its intended behavior, or data. So-called Evil Maid attacks and security services planting of surveillance capability into routers are examples.
HTML smuggling allows an attacker to "smuggle" a malicious code inside a particular HTML or web page. HTML files can carry payloads concealed as benign, inert data in order to defeat content filters. These payloads can be reconstructed on the other side of the filter.
When a target user opens the HTML, the malicious code is activated; the web browser then "decodes" the script, which then unleashes the malware onto the target's device.
Employee behavior can have a big impact on information security in organizations. Cultural concepts can help different segments of the organization work effectively or work against effectiveness toward information security within an organization. Information security culture is the "...totality of patterns of behavior in an organization that contributes to the protection of information of all kinds."
Andersson and Reimers (2014) found that employees often do not see themselves as part of their organization's information security effort and often take actions that impede organizational changes. Indeed, the Verizon Data Breach Investigations Report 2020, which examined 3,950 security breaches, discovered 30% of cybersecurity incidents involved internal actors within a company. Research shows information security culture needs to be improved continuously. In "Information Security Culture from Analysis to Change", authors commented, "It's a never-ending process, a cycle of evaluation and change or maintenance." To manage the information security culture, five steps should be taken: pre-evaluation, strategic planning, operative planning, implementation, and post-evaluation.
In computer security, a countermeasure is an action, device, procedure or technique that reduces a threat, a vulnerability, or an attack by eliminating or preventing it, by minimizing the harm it can cause, or by discovering and reporting it so that corrective action can be taken.
Some common countermeasures are listed in the following sections:
Security by design, or alternately secure by design, means that the software has been designed from the ground up to be secure. In this case, security is considered a main feature.
The UK government's National Cyber Security Centre separate secure cyber design principles into five sections:
These design principles of security by design can include some of the following techniques:
Security architecture can be defined as the "practice of designing computer systems to achieve security goals." These goals have overlap with the principles of "security by design" explored above, including to "make initial compromise of the system difficult," and to "limit the impact of any compromise." In practice, the role of a security architect would be to ensure the structure of a system reinforces the security of the system, and that new changes are safe and meet the security requirements of the organisation.
Similarly, Techopedia defines security architecture as "a unified security design that addresses the necessities and potential risks involved in a certain scenario or environment. It also specifies when and where to apply security controls. The design process is generally reproducible." The key attributes of security architecture are:
Practicing security architecture provides the right foundation to systematically address business, IT and security concerns in an organization.
A state of computer security is the conceptual ideal, attained by the use of the three processes: threat prevention, detection, and response. These processes are based on various policies and system components, which include the following:
Today, computer security consists mainly of preventive measures, like firewalls or an exit procedure. A firewall can be defined as a way of filtering network data between a host or a network and another network, such as the Internet. They can be implemented as software running on the machine, hooking into the network stack (or, in the case of most UNIX-based operating systems such as Linux, built into the operating system kernel) to provide real-time filtering and blocking. Another implementation is a so-called physical firewall, which consists of a separate machine filtering network traffic. Firewalls are common amongst machines that are permanently connected to the Internet.
Some organizations are turning to big data platforms, such as Apache Hadoop, to extend data accessibility and machine learning to detect advanced persistent threats.
In order to ensure adequate security, the confidentiality, integrity and availability of a network, better known as the CIA triad, must be protected and is considered the foundation to information security. To achieve those objectives, administrative, physical and technical security measures should be employed. The amount of security afforded to an asset can only be determined when its value is known.
Vulnerability management is the cycle of identifying, fixing or mitigating vulnerabilities, especially in software and firmware. Vulnerability management is integral to computer security and network security.
Vulnerabilities can be discovered with a vulnerability scanner, which analyzes a computer system in search of known vulnerabilities, such as open ports, insecure software configuration, and susceptibility to malware. In order for these tools to be effective, they must be kept up to date with every new update the vendor release. Typically, these updates will scan for the new vulnerabilities that were introduced recently.
Beyond vulnerability scanning, many organizations contract outside security auditors to run regular penetration tests against their systems to identify vulnerabilities. In some sectors, this is a contractual requirement.
The act of assessing and reducing vulnerabilities to cyber attacks is commonly referred to as information technology security assessments. They aims to assess systems for risk and to predict and test for their vulnerabilities. While formal verification of the correctness of computer systems is possible, it is not yet common. Operating systems formally verified include seL4, and SYSGO's PikeOS – but these make up a very small percentage of the market.
It is possible to reduce an attacker's chances by keeping systems up to date with security patches and updates and/or hiring people with expertise in security. Large companies with significant threats can hire Security Operations Centre (SOC) Analysts. These are specialists in cyber defences, with their role ranging from "conducting threat analysis to investigating reports of any new issues and preparing and testing disaster recovery plans."
Whilst no measures can completely guarantee the prevention of an attack, these measures can help mitigate the damage of possible attacks. The effects of data loss/damage can be also reduced by careful backing up and insurance.
Outside of formal assessments, there are various methods of reducing vulnerabilities. Two factor authentication is a method for mitigating unauthorized access to a system or sensitive information. It requires something you know; a password or PIN, and something you have; a card, dongle, cellphone, or another piece of hardware. This increases security as an unauthorized person needs both of these to gain access.
Protecting against social engineering and direct computer access (physical) attacks can only be occur by non-computer means, which can be difficult to enforce, relative to the sensitivity of the information. Training is often involved to help mitigate this risk by improving people's knowledge of how to protect themselves and by increasing people's awareness of threats. However, even in highly disciplined environments (e.g. military organizations), social engineering attacks can still be difficult to foresee and prevent.
Inoculation, derived from inoculation theory, seeks to prevent social engineering and other fraudulent tricks or traps by instilling a resistance to persuasion attempts through exposure to similar or related attempts.
Hardware-based or assisted computer security also offers an alternative to software-only computer security. Using devices and methods such as dongles, trusted platform modules, intrusion-aware cases, drive locks, disabling USB ports, and mobile-enabled access may be considered more secure due to the physical access (or sophisticated backdoor access) required in order to be compromised. Each of these is covered in more detail below.
One use of the term computer security refers to technology that is used to implement secure operating systems. Using secure operating systems is a good way of ensuring computer security. These are systems that have achieved certification from an external security-auditing organization, the most popular evaluations are Common Criteria (CC).
In software engineering, secure coding aims to guard against the accidental introduction of security vulnerabilities. It is also possible to create software designed from the ground up to be secure. Such systems are secure by design. Beyond this, formal verification aims to prove the correctness of the algorithms underlying a system; important for cryptographic protocols for example.
Within computer systems, two of the main security models capable of enforcing privilege separation are access control lists (ACLs) and role-based access control (RBAC).
An access-control list (ACL), with respect to a computer file system, is a list of permissions associated with an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects.
Role-based access control is an approach to restricting system access to authorized users, used by the majority of enterprises with more than 500 employees, and can implement mandatory access control (MAC) or discretionary access control (DAC).
A further approach, capability-based security has been mostly restricted to research operating systems. Capabilities can, however, also be implemented at the language level, leading to a style of programming that is essentially a refinement of standard object-oriented design. An open-source project in the area is the E language.
The end-user is widely recognized as the weakest link in the security chain and it is estimated that more than 90% of security incidents and breaches involve some kind of human error. Among the most commonly recorded forms of errors and misjudgment are poor password management, sending emails containing sensitive data and attachments to the wrong recipient, the inability to recognize misleading URLs and to identify fake websites and dangerous email attachments. A common mistake that users make is saving their user id/password in their browsers to make it easier to log in to banking sites. This is a gift to attackers who have obtained access to a machine by some means. The risk may be mitigated by the use of two-factor authentication.
As the human component of cyber risk is particularly relevant in determining the global cyber risk an organization is facing, security awareness training, at all levels, not only provides formal compliance with regulatory and industry mandates but is considered essential in reducing cyber risk and protecting individuals and companies from the great majority of cyber threats.
The focus on the end-user represents a profound cultural change for many security practitioners, who have traditionally approached cybersecurity exclusively from a technical perspective, and moves along the lines suggested by major security centers to develop a culture of cyber awareness within the organization, recognizing that a security-aware user provides an important line of defense against cyber attacks.
Related to end-user training, digital hygiene or cyber hygiene is a fundamental principle relating to information security and, as the analogy with personal hygiene shows, is the equivalent of establishing simple routine measures to minimize the risks from cyber threats. The assumption is that good cyber hygiene practices can give networked users another layer of protection, reducing the risk that one vulnerable node will be used to either mount attacks or compromise another node or network, especially from common cyberattacks. Cyber hygiene should also not be mistaken for proactive cyber defence, a military term.
The most common acts of digital/cyber hygiene can include updating malware protection, cloud back-ups, passwords, and ensuring restricted admin rights and network firewalls. As opposed to a purely technology-based defense against threats, cyber hygiene mostly regards routine measures that are technically simple to implement and mostly dependent on discipline or education. It can be thought of as an abstract list of tips or measures that have been demonstrated as having a positive effect on personal and/or collective digital security. As such, these measures can be performed by laypeople, not just security experts.
Cyber hygiene relates to personal hygiene as computer viruses relate to biological viruses (or pathogens). However, while the term computer virus was coined almost simultaneously with the creation of the first working computer viruses, the term cyber hygiene is a much later invention, perhaps as late as 2000 by Internet pioneer Vint Cerf. It has since been adopted by the Congress and Senate of the United States, the FBI, EU institutions and heads of state.
Responding to attempted security breaches is often very difficult for a variety of reasons, including:
Where an attack succeeds and a breach occurs, many jurisdictions now have in place mandatory security breach notification laws.
The growth in the number of computer systems and the increasing reliance upon them by individuals, businesses, industries, and governments means that there are an increasing number of systems at risk.
The computer systems of financial regulators and financial institutions like the U.S. Securities and Exchange Commission, SWIFT, investment banks, and commercial banks are prominent hacking targets for cybercriminals interested in manipulating markets and making illicit gains. Websites and apps that accept or store credit card numbers, brokerage accounts, and bank account information are also prominent hacking targets, because of the potential for immediate financial gain from transferring money, making purchases, or selling the information on the black market. In-store payment systems and ATMs have also been tampered with in order to gather customer account data and PINs.
The UCLA Internet Report: Surveying the Digital Future (2000) found that the privacy of personal data created barriers to online sales and that more than nine out of 10 internet users were somewhat or very concerned about credit card security.
The most common web technologies for improving security between browsers and websites are named SSL (Secure Sockets Layer), and its successor TLS (Transport Layer Security), identity management and authentication services, and domain name services allow companies and consumers to engage in secure communications and commerce. Several versions of SSL and TLS are commonly used today in applications such as web browsing, e-mail, internet faxing, instant messaging, and VoIP (voice-over-IP). There are various interoperable implementations of these technologies, including at least one implementation that is open source. Open source allows anyone to view the application's source code, and look for and report vulnerabilities.
The credit card companies Visa and MasterCard cooperated to develop the secure EMV chip which is embedded in credit cards. Further developments include the Chip Authentication Program where banks give customers hand-held card readers to perform online secure transactions. Other developments in this arena include the development of technology such as Instant Issuance which has enabled shopping mall kiosks acting on behalf of banks to issue on-the-spot credit cards to interested customers.
Computers control functions at many utilities, including coordination of telecommunications, the power grid, nuclear power plants, and valve opening and closing in water and gas networks. The Internet is a potential attack vector for such machines if connected, but the Stuxnet worm demonstrated that even equipment controlled by computers not connected to the Internet can be vulnerable. In 2014, the Computer Emergency Readiness Team, a division of the Department of Homeland Security, investigated 79 hacking incidents at energy companies.
The aviation industry is very reliant on a series of complex systems which could be attacked. A simple power outage at one airport can cause repercussions worldwide, much of the system relies on radio transmissions which could be disrupted, and controlling aircraft over oceans is especially dangerous because radar surveillance only extends 175 to 225 miles offshore. There is also potential for attack from within an aircraft.
In Europe, with the (Pan-European Network Service) and NewPENS, and in the US with the NextGen program, air navigation service providers are moving to create their own dedicated networks.
Many modern passports are now biometric passports, containing an embedded microchip that stores a digitized photograph and personal information such as name, gender, and date of birth. In addition, more countries are introducing facial recognition technology to reduce identity-related fraud. The introduction of the ePassport has assisted border officials in verifying the identity of the passport holder, thus allowing for quick passenger processing. Plans are under way in the US, the UK, and Australia to introduce SmartGate kiosks with both retina and fingerprint recognition technology. The airline industry is moving from the use of traditional paper tickets towards the use of electronic tickets (e-tickets). These have been made possible by advances in online credit card transactions in partnership with the airlines. Long-distance bus companies are also switching over to e-ticketing transactions today.
The consequences of a successful attack range from loss of confidentiality to loss of system integrity, air traffic control outages, loss of aircraft, and even loss of life.
Desktop computers and laptops are commonly targeted to gather passwords or financial account information or to construct a botnet to attack another target. Smartphones, tablet computers, smart watches, and other mobile devices such as quantified self devices like activity trackers have sensors such as cameras, microphones, GPS receivers, compasses, and accelerometers which could be exploited, and may collect personal information, including sensitive health information. WiFi, Bluetooth, and cell phone networks on any of these devices could be used as attack vectors, and sensors might be remotely activated after a successful breach.
The increasing number of home automation devices such as the Nest thermostat are also potential targets.
Today many health-care providers and health insurance companies use the internet to provide enhanced products and services, for example through use of tele-health to potentially offer better quality and access to healthcare, or fitness trackers to lower insurance premiums.
The health care company Humana partners with WebMD, Oracle Corporation, EDS and Microsoft to enable its members to access their health care records, as well as to provide an overview of health care plans. Patient records are increasingly being placed on secure in-house networks, alleviating the need for extra storage space.
Large corporations are common targets. In many cases attacks are aimed at financial gain through identity theft and involve data breaches. Examples include the loss of millions of clients' credit card and financial details by Home Depot, Staples, Target Corporation, and Equifax.
Medical records have been targeted in general identify theft, health insurance fraud, and impersonating patients to obtain prescription drugs for recreational purposes or resale. Although cyber threats continue to increase, 62% of all organizations did not increase security training for their business in 2015.
Not all attacks are financially motivated, however: security firm HBGary Federal had a serious series of attacks in 2011 from hacktivist group Anonymous in retaliation for the firm's CEO claiming to have infiltrated their group, and Sony Pictures was hacked in 2014 with the apparent dual motive of embarrassing the company through data leaks and crippling the company by wiping workstations and servers.
Vehicles are increasingly computerized, with engine timing, cruise control, anti-lock brakes, seat belt tensioners, door locks, airbags and advanced driver-assistance systems on many models. Additionally, connected cars may use WiFi and Bluetooth to communicate with onboard consumer devices and the cell phone network. Self-driving cars are expected to be even more complex. All of these systems carry some security risks, and such issues have gained wide attention.
Simple examples of risk include a malicious compact disc being used as an attack vector, and the car's onboard microphones being used for eavesdropping. However, if access is gained to a car's internal controller area network, the danger is much greater – and in a widely publicized 2015 test, hackers remotely carjacked a vehicle from 10 miles away and drove it into a ditch.
Manufacturers are reacting in numerous ways, with Tesla in 2016 pushing out some security fixes over the air into its cars' computer systems. In the area of autonomous vehicles, in September 2016 the United States Department of Transportation announced some initial safety standards, and called for states to come up with uniform policies.
Additionally, e-Drivers' licenses are being developed using the same technology. For example, Mexico's licensing authority (ICV) has used a smart card platform to issue the first e-Drivers' licenses to the city of Monterrey, in the state of Nuevo León.
Shipping companies have adopted RFID (Radio Frequency Identification) technology as an efficient, digitally secure, tracking device. Unlike a barcode, RFID can be read up to 20 feet away. RFID is used by FedEx and UPS.
Government and military computer systems are commonly attacked by activists and foreign powers. Local and regional government infrastructure such as traffic light controls, police and intelligence agency communications, personnel records, as well as student records.
The FBI, CIA, and Pentagon, all utilize secure controlled access technology for any of their buildings. However, the use of this form of technology is spreading into the entrepreneurial world. More and more companies are taking advantage of the development of digitally secure controlled access technology. GE's ACUVision, for example, offers a single panel platform for access control, alarm monitoring and digital recording.
The Internet of things (IoT) is the network of physical objects such as devices, vehicles, and buildings that are embedded with electronics, software, sensors, and network connectivity that enables them to collect and exchange data. Concerns have been raised that this is being developed without appropriate consideration of the security challenges involved.
While the IoT creates opportunities for more direct integration of the physical world into computer-based systems, it also provides opportunities for misuse. In particular, as the Internet of Things spreads widely, cyberattacks are likely to become an increasingly physical (rather than simply virtual) threat. If a front door's lock is connected to the Internet, and can be locked/unlocked from a phone, then a criminal could enter the home at the press of a button from a stolen or hacked phone. People could stand to lose much more than their credit card numbers in a world controlled by IoT-enabled devices. Thieves have also used electronic means to circumvent non-Internet-connected hotel door locks.
An attack that targets physical infrastructure and/or human lives is sometimes referred to as a cyber-kinetic attack. As IoT devices and appliances gain currency, cyber-kinetic attacks can become pervasive and significantly damaging.
Medical devices have either been successfully attacked or had potentially deadly vulnerabilities demonstrated, including both in-hospital diagnostic equipment and implanted devices including pacemakers and insulin pumps. There are many reports of hospitals and hospital organizations getting hacked, including ransomware attacks, Windows XP exploits, viruses, and data breaches of sensitive data stored on hospital servers. On 28 December 2016 the US Food and Drug Administration released its recommendations for how medical device manufacturers should maintain the security of Internet-connected devices – but no structure for enforcement.
In distributed generation systems, the risk of a cyber attack is real, according to Daily Energy Insider. An attack could cause a loss of power in a large area for a long period of time, and such an attack could have just as severe consequences as a natural disaster. The District of Columbia is considering creating a Distributed Energy Resources (DER) Authority within the city, with the goal being for customers to have more insight into their own energy use and giving the local electric utility, Pepco, the chance to better estimate energy demand. The D.C. proposal, however, would "allow third-party vendors to create numerous points of energy distribution, which could potentially create more opportunities for cyber attackers to threaten the electric grid."
Perhaps the most widely known digitally secure telecommunication device is the SIM (Subscriber Identity Module) card, a device that is embedded in most of the world's cellular devices before any service can be obtained. The SIM card is just the beginning of this digitally secure environment.
The Smart Card Web Servers draft standard (SCWS) defines the interfaces to an HTTP server in a smart card. Tests are being conducted to secure OTA ("over-the-air") payment and credit card information from and to a mobile phone. Combination SIM/DVD devices are being developed through Smart Video Card technology which embeds a DVD-compliant optical disc into the card body of a regular SIM card.
Other telecommunication developments involving digital security include mobile signatures, which use the embedded SIM card to generate a legally binding electronic signature.
Serious financial damage has been caused by security breaches, but because there is no standard model for estimating the cost of an incident, the only data available is that which is made public by the organizations involved. "Several computer security consulting firms produce estimates of total worldwide losses attributable to virus and worm attacks and to hostile digital acts in general. The 2003 loss estimates by these firms range from $13 billion (worms and viruses only) to $226 billion (for all forms of covert attacks). The reliability of these estimates is often challenged; the underlying methodology is basically anecdotal."
However, reasonable estimates of the financial cost of security breaches can actually help organizations make rational investment decisions. According to the classic Gordon-Loeb Model analyzing the optimal investment level in information security, one can conclude that the amount a firm spends to protect information should generally be only a small fraction of the expected loss (i.e., the expected value of the loss resulting from a cyber/information security breach).
As with physical security, the motivations for breaches of computer security vary between attackers. Some are thrill-seekers or vandals, some are activists, others are criminals looking for financial gain. State-sponsored attackers are now common and well resourced but started with amateurs such as Markus Hess who hacked for the KGB, as recounted by Clifford Stoll in The Cuckoo's Egg.
Attackers motivations can vary for all types of attacks from pleasure to for political goals. For example, "hacktivists" may target a company a company or organisation that carries out activities they do not agree with. This would be to create bad publicity for the company by having its website crash.
High capability hackers, often with larger backing or state sponsorship, may attack based on the demands of their financial backers. These attacks are more likely to attempt more serious attack. An example of a more serious attack was the 2015 Ukraine power grid hack, which reportedly utilised the spear-phising, destruction of files, and denial-of-service attacks to carry out the full attack.
Additionally, recent attacker motivations can be traced back to extremist organizations seeking to gain political advantage or disrupt social agendas. The growth of the internet, mobile technologies, and inexpensive computing devices have led to a rise in capabilities but also to the risk to environments that are deemed as vital to operations. All critical targeted environments are susceptible to compromise and this has led to a series of proactive studies on how to migrate the risk by taking into consideration motivations by these types of actors. Several stark differences exist between the hacker motivation and that of nation state actors seeking to attack based on an ideological preference.
A standard part of threat modeling for any particular system is to identify what might motivate an attack on that system, and who might be motivated to breach it. The level and detail of precautions will vary depending on the system to be secured. A home personal computer, bank, and classified military network face very different threats, even when the underlying technologies in use are similar.
Computer security incident management is an organized approach to addressing and managing the aftermath of a computer security incident or compromise with the goal of preventing a breach or thwarting a cyberattack. An incident that is not identified and managed at the time of intrusion typically escalates to a more damaging event such as a data breach or system failure. The intended outcome of a computer security incident response plan is to contain the incident, limit damage and assist recovery to business as usual. Responding to compromises quickly can mitigate exploited vulnerabilities, restore services and processes and minimize losses. Incident response planning allows an organization to establish a series of best practices to stop an intrusion before it causes damage. Typical incident response plans contain a set of written instructions that outline the organization's response to a cyberattack. Without a documented plan in place, an organization may not successfully detect an intrusion or compromise and stakeholders may not understand their roles, processes and procedures during an escalation, slowing the organization's response and resolution.
There are four key components of a computer security incident response plan:
Some illustrative examples of different types of computer security breaches are given below.
In 1988, 60,000 computers were connected to the Internet, and most were mainframes, minicomputers and professional workstations. On 2 November 1988, many started to slow down, because they were running a malicious code that demanded processor time and that spread itself to other computers – the first internet computer worm. The software was traced back to 23-year-old Cornell University graduate student Robert Tappan Morris who said "he wanted to count how many machines were connected to the Internet".
In 1994, over a hundred intrusions were made by unidentified crackers into the Rome Laboratory, the US Air Force's main command and research facility. Using trojan horses, hackers were able to obtain unrestricted access to Rome's networking systems and remove traces of their activities. The intruders were able to obtain classified files, such as air tasking order systems data and furthermore able to penetrate connected networks of National Aeronautics and Space Administration's Goddard Space Flight Center, Wright-Patterson Air Force Base, some Defense contractors, and other private sector organizations, by posing as a trusted Rome center user.
In early 2007, American apparel and home goods company TJX announced that it was the victim of an unauthorized computer systems intrusion and that the hackers had accessed a system that stored data on credit card, debit card, check, and merchandise return transactions.
In 2010, the computer worm known as Stuxnet reportedly ruined almost one-fifth of Iran's nuclear centrifuges. It did so by disrupting industrial programmable logic controllers (PLCs) in a targeted attack. This is generally believed to have been launched by Israel and the United States to disrupt Iran's nuclear program – although neither has publicly admitted this.
In early 2013, documents provided by Edward Snowden were published by The Washington Post and The Guardian exposing the massive scale of NSA global surveillance. There were also indications that the NSA may have inserted a backdoor in a NIST standard for encryption. This standard was later withdrawn due to widespread criticism. The NSA additionally were revealed to have tapped the links between Google's data centers.
A Ukrainian hacker known as Rescator broke into Target Corporation computers in 2013, stealing roughly 40 million credit cards, and then Home Depot computers in 2014, stealing between 53 and 56 million credit card numbers. Warnings were delivered at both corporations, but ignored; physical security breaches using self checkout machines are believed to have played a large role. "The malware utilized is absolutely unsophisticated and uninteresting," says Jim Walter, director of threat intelligence operations at security technology company McAfee – meaning that the heists could have easily been stopped by existing antivirus software had administrators responded to the warnings. The size of the thefts has resulted in major attention from state and Federal United States authorities and the investigation is ongoing.
In April 2015, the Office of Personnel Management discovered it had been hacked more than a year earlier in a data breach, resulting in the theft of approximately 21.5 million personnel records handled by the office. The Office of Personnel Management hack has been described by federal officials as among the largest breaches of government data in the history of the United States. Data targeted in the breach included personally identifiable information such as Social Security numbers, names, dates and places of birth, addresses, and fingerprints of current and former government employees as well as anyone who had undergone a government background check. It is believed the hack was perpetrated by Chinese hackers.
In July 2015, a hacker group is known as The Impact Team successfully breached the extramarital relationship website Ashley Madison, created by Avid Life Media. The group claimed that they had taken not only company data but user data as well. After the breach, The Impact Team dumped emails from the company's CEO, to prove their point, and threatened to dump customer data unless the website was taken down permanently. When Avid Life Media did not take the site offline the group released two more compressed files, one 9.7GB and the second 20GB. After the second data dump, Avid Life Media CEO Noel Biderman resigned; but the website remained to function.
In June 2021, the cyber attack took down the largest fuel pipeline in the U.S. and led to shortages across the East Coast.
International legal issues of cyber attacks are complicated in nature. There is no global base of common rules to judge, and eventually punish, cybercrimes and cybercriminals - and where security firms or agencies do locate the cybercriminal behind the creation of a particular piece of malware or form of cyber attack, often the local authorities cannot take action due to lack of laws under which to prosecute. Proving attribution for cybercrimes and cyberattacks is also a major problem for all law enforcement agencies. "Computer viruses switch from one country to another, from one jurisdiction to another – moving around the world, using the fact that we don't have the capability to globally police operations like this. So the Internet is as if someone [had] given free plane tickets to all the online criminals of the world." The use of techniques such as dynamic DNS, fast flux and bullet proof servers add to the difficulty of investigation and enforcement.
The role of the government is to make regulations to force companies and organizations to protect their systems, infrastructure and information from any cyberattacks, but also to protect its own national infrastructure such as the national power-grid.
The government's regulatory role in cyberspace is complicated. For some, cyberspace was seen as a virtual space that was to remain free of government intervention, as can be seen in many of today's libertarian blockchain and bitcoin discussions.
Many government officials and experts think that the government should do more and that there is a crucial need for improved regulation, mainly due to the failure of the private sector to solve efficiently the cybersecurity problem. R. Clarke said during a panel discussion at the RSA Security Conference in San Francisco, he believes that the "industry only responds when you threaten regulation. If the industry doesn't respond (to the threat), you have to follow through." On the other hand, executives from the private sector agree that improvements are necessary, but think that government intervention would affect their ability to innovate efficiently. Daniel R. McCarthy analyzed this public-private partnership in cybersecurity and reflected on the role of cybersecurity in the broader constitution of political order.
On 22 May 2020, the UN Security Council held its second ever informal meeting on cybersecurity to focus on cyber challenges to international peace. According to UN Secretary-General António Guterres, new technologies are too often used to violate rights.
Many different teams and organizations exist, including:
On 14 April 2016, the European Parliament and the Council of the European Union adopted the General Data Protection Regulation (GDPR). The GDPR, which came into force on 25 May 2018, grants individuals within the European Union (EU) and the European Economic Area (EEA) the right to the protection of personal data. The regulation requires that any entity that processes personal data incorporate data protection by design and by default. It also requires that certain organizations appoint a Data Protection Officer (DPO).
Most countries have their own computer emergency response team to protect network security.
Since 2010, Canada has had a cybersecurity strategy. This functions as a counterpart document to the National Strategy and Action Plan for Critical Infrastructure. The strategy has three main pillars: securing government systems, securing vital private cyber systems, and helping Canadians to be secure online. There is also a Cyber Incident Management Framework to provide a coordinated response in the event of a cyber incident.
The Canadian Cyber Incident Response Centre (CCIRC) is responsible for mitigating and responding to threats to Canada's critical infrastructure and cyber systems. It provides support to mitigate cyber threats, technical support to respond & recover from targeted cyber attacks, and provides online tools for members of Canada's critical infrastructure sectors. It posts regular cybersecurity bulletins & operates an online reporting tool where individuals and organizations can report a cyber incident.
To inform the general public on how to protect themselves online, Public Safety Canada has partnered with STOP.THINK.CONNECT, a coalition of non-profit, private sector, and government organizations, and launched the Cyber Security Cooperation Program. They also run the GetCyberSafe portal for Canadian citizens, and Cyber Security Awareness Month during October.
Public Safety Canada aims to begin an evaluation of Canada's cybersecurity strategy in early 2015.
Australian federal government announced an $18.2 million investment to fortify the cybersecurity resilience of small and medium enterprises (SMEs) and enhance their capabilities in responding to cyber threats. This financial backing is an integral component of the soon-to-be-unveiled 2023-2030 Australian Cyber Security Strategy, slated for release within the current week. A substantial allocation of $7.2 million is earmarked for the establishment of a voluntary cyber health check program, facilitating businesses in conducting a comprehensive and tailored self-assessment of their cybersecurity upskill.
This avant-garde health assessment serves as a diagnostic tool, enabling enterprises to ascertain the robustness of Australia's cyber security regulations. Furthermore, it affords them access to a repository of educational resources and materials, fostering the acquisition of skills necessary for an elevated cybersecurity posture. This groundbreaking initiative was jointly disclosed by Minister for Cyber Security Clare O'Neil and Minister for Small Business Julie Collins.
The United States has its first fully formed cyber plan in 15 years, as a result of the release of this National Cyber plan. In this policy, the US says it will: Protect the country by keeping networks, systems, functions, and data safe; Promote American wealth by building a strong digital economy and encouraging strong domestic innovation; Peace and safety should be kept by making it easier for the US to stop people from using computer tools for bad things, working with friends and partners to do this; and Increase the United States' impact around the world to support the main ideas behind an open, safe, reliable, and compatible Internet. The new U.S. cyber strategy seeks to allay some of those concerns by promoting responsible behavior in cyberspace, urging nations to adhere to a set of norms, both through international law and voluntary standards. It also calls for specific measures to harden U.S. government networks from attacks, like the June 2015 intrusion into the U.S. Office of Personnel Management (OPM), which compromised the records of about 4.2 million current and former government employees. And the strategy calls for the U.S. to continue to name and shame bad cyber actors, calling them out publicly for attacks when possible, along with the use of economic sanctions and diplomatic pressure.
Some provisions for cybersecurity have been incorporated into rules framed under the Information Technology Act 2000.
The National Cyber Security Policy 2013 is a policy framework by the Ministry of Electronics and Information Technology (MeitY) which aims to protect the public and private infrastructure from cyberattacks, and safeguard "information, such as personal information (of web users), financial and banking information and sovereign data". CERT- In is the nodal agency which monitors the cyber threats in the country. The post of National Cyber Security Coordinator has also been created in the Prime Minister's Office (PMO).
The Indian Companies Act 2013 has also introduced cyber law and cybersecurity obligations on the part of Indian directors. Some provisions for cybersecurity have been incorporated into rules framed under the Information Technology Act 2000 Update in 2013.
Following cyberattacks in the first half of 2013, when the government, news media, television stations, and bank websites were compromised, the national government committed to the training of 5,000 new cybersecurity experts by 2017. The South Korean government blamed its northern counterpart for these attacks, as well as incidents that occurred in 2009, 2011, and 2012, but Pyongyang denies the accusations.
The 1986 18 U.S.C. § 1030, the Computer Fraud and Abuse Act is the key legislation. It prohibits unauthorized access or damage of protected computers as defined in 18 U.S.C. § 1030(e)(2). Although various other measures have been proposed – none has succeeded.
In 2013, executive order 13636 Improving Critical Infrastructure Cybersecurity was signed, which prompted the creation of the NIST Cybersecurity Framework.
In response to the Colonial Pipeline ransomware attack President Joe Biden signed Executive Order 14028 on May 12, 2021, to increase software security standards for sales to the government, tighten detection and security on existing systems, improve information sharing and training, establish a Cyber Safety Review Board, and improve incident response.
The General Services Administration (GSA) has standardized the penetration test service as a pre-vetted support service, to rapidly address potential vulnerabilities, and stop adversaries before they impact US federal, state and local governments. These services are commonly referred to as Highly Adaptive Cybersecurity Services (HACS).
The Department of Homeland Security has a dedicated division responsible for the response system, risk management program and requirements for cybersecurity in the United States called the National Cyber Security Division. The division is home to US-CERT operations and the National Cyber Alert System. The National Cybersecurity and Communications Integration Center brings together government organizations responsible for protecting computer networks and networked infrastructure.
The third priority of the FBI is to: "Protect the United States against cyber-based attacks and high-technology crimes", and they, along with the National White Collar Crime Center (NW3C), and the Bureau of Justice Assistance (BJA) are part of the multi-agency task force, The Internet Crime Complaint Center, also known as IC3.
In addition to its own specific duties, the FBI participates alongside non-profit organizations such as InfraGard.
The Computer Crime and Intellectual Property Section (CCIPS) operates in the United States Department of Justice Criminal Division. The CCIPS is in charge of investigating computer crime and intellectual property crime and is specialized in the search and seizure of digital evidence in computers and networks. In 2017, CCIPS published A Framework for a Vulnerability Disclosure Program for Online Systems to help organizations "clearly describe authorized vulnerability disclosure and discovery conduct, thereby substantially reducing the likelihood that such described activities will result in a civil or criminal violation of law under the Computer Fraud and Abuse Act (18 U.S.C. § 1030)."
The United States Cyber Command, also known as USCYBERCOM, "has the mission to direct, synchronize, and coordinate cyberspace planning and operations to defend and advance national interests in collaboration with domestic and international partners." It has no role in the protection of civilian networks.
The U.S. Federal Communications Commission's role in cybersecurity is to strengthen the protection of critical communications infrastructure, to assist in maintaining the reliability of networks during disasters, to aid in swift recovery after, and to ensure that first responders have access to effective communications services.
The Food and Drug Administration has issued guidance for medical devices, and the National Highway Traffic Safety Administration is concerned with automotive cybersecurity. After being criticized by the Government Accountability Office, and following successful attacks on airports and claimed attacks on airplanes, the Federal Aviation Administration has devoted funding to securing systems on board the planes of private manufacturers, and the Aircraft Communications Addressing and Reporting System. Concerns have also been raised about the future Next Generation Air Transportation System.
The US Department of Defense (DoD) issued DoD Directive 8570 in 2004, supplemented by DoD Directive 8140, requiring all DoD employees and all DoD contract personnel involved in information assurance roles and activities to earn and maintain various industry Information Technology (IT) certifications in an effort to ensure that all DoD personnel involved in network infrastructure defense have minimum levels of IT industry recognized knowledge, skills and abilities (KSA). Andersson and Reimers (2019) report these certifications range from CompTIA's A+ and Security+ through the ICS2.org's CISSP, etc.
Computer emergency response team is a name given to expert groups that handle computer security incidents. In the US, two distinct organizations exist, although they do work closely together.
In the context of U.S. nuclear power plants, the U.S. Nuclear Regulatory Commission (NRC) outlines cybersecurity requirements under 10 CFR Part 73, specifically in §73.54. This section mandates that licensees provide high assurance against cyber attacks for digital equipment and computers and communications systems related to safety, security, emergency preparedness, and support systems. Licensees must submit a cybersecurity plan, establish a comprehensive cybersecurity program, and implement defense-in-depth strategies to protect against cyber threats. The plan must also include incident response and recovery measures (i.e., Contingency Plans, Contingency Plans for Power Grid) for cyber attacks. Details can be found in 10 CFR 73.54, Protection of digital computer and communication systems and networks.
The Nuclear Energy Institute's NEI 08-09 document, "Security Plan for Nuclear Power Reactors," outlines a comprehensive framework for cybersecurity in the nuclear power industry. Drafted with input from the U.S. NRC , this guideline is instrumental in aiding licensees to comply with Title 10, Part 73, Section 73.54 (10 CFR 73.54) of the Code of Federal Regulations (CFR) , which mandates robust protection of digital computers and equipment and communications systems at nuclear power plants against cyber threats. NEI 08-09 provides a structured approach to cybersecurity, encompassing aspects such as the creation of a cyber security plan, implementation of technical and management security controls, and integration of these plans into the overall physical protection programs (e.g., Physical Security Programs and other general Nuclear Security Programs in place) at nuclear facilities. It emphasizes a defense-in-depth strategy, employing layered security measures to safeguard critical digital assets (CDAs) (i.e., critical assets, business-critical assets, safety-critical assets) from cyber attacks, thereby ensuring the safety and integrity of nuclear power operations. Refer to NEI 08-09 for more details.
There is growing concern that cyberspace will become the next theater of warfare. As Mark Clayton from The Christian Science Monitor wrote in a 2015 article titled "The New Cyber Arms Race":
In the future, wars will not just be fought by soldiers with guns or with planes that drop bombs. They will also be fought with the click of a mouse a half a world away that unleashes carefully weaponized computer programs that disrupt or destroy critical industries like utilities, transportation, communications, and energy. Such attacks could also disable military networks that control the movement of troops, the path of jet fighters, the command and control of warships.
This has led to new terms such as cyberwarfare and cyberterrorism. The United States Cyber Command was created in 2009 and many other countries have similar forces.
There are a few critical voices that question whether cybersecurity is as significant a threat as it is made out to be.
Cybersecurity is a fast-growing field of IT concerned with reducing organizations' risk of hack or data breaches. According to research from the Enterprise Strategy Group, 46% of organizations say that they have a "problematic shortage" of cybersecurity skills in 2016, up from 28% in 2015. Commercial, government and non-governmental organizations all employ cybersecurity professionals. The fastest increases in demand for cybersecurity workers are in industries managing increasing volumes of consumer data such as finance, health care, and retail. However, the use of the term cybersecurity is more prevalent in government job descriptions.
Typical cybersecurity job titles and descriptions include:
Student programs are also available for people interested in beginning a career in cybersecurity. Meanwhile, a flexible and effective option for information security professionals of all experience levels to keep studying is online security training, including webcasts. A wide range of certified courses are also available.
In the United Kingdom, a nationwide set of cybersecurity forums, known as the U.K Cyber Security Forum, were established supported by the Government's cybersecurity strategy in order to encourage start-ups and innovation and to address the skills gap identified by the U.K Government.
In Singapore, the Cyber Security Agency has issued a Singapore Operational Technology (OT) Cybersecurity Competency Framework (OTCCF). The framework defines emerging cybersecurity roles in Operational Technology. The OTCCF was endorsed by the Infocomm Media Development Authority (IMDA). It outlines the different OT cybersecurity job positions as well as the technical skills and core competencies necessary. It also depicts the many career paths available, including vertical and lateral advancement opportunities.
The following terms used with regards to computer security are explained below:
Since the Internet's arrival and with the digital transformation initiated in recent years, the notion of cybersecurity has become a familiar subject in both our professional and personal lives. Cybersecurity and cyber threats have been consistently present for the last 60 years of technological change. In the 1970s and 1980s, computer security was mainly limited to academia until the conception of the Internet, where, with increased connectivity, computer viruses and network intrusions began to take off. After the spread of viruses in the 1990s, the 2000s marked the institutionalization of organized attacks such as distributed denial of service. This led to the formalization of cybersecurity as a professional discipline.
The April 1967 session organized by Willis Ware at the Spring Joint Computer Conference, and the later publication of the Ware Report, were foundational moments in the history of the field of computer security. Ware's work straddled the intersection of material, cultural, political, and social concerns.
A 1977 NIST publication introduced the CIA triad of confidentiality, integrity, and availability as a clear and simple way to describe key security goals. While still relevant, many more elaborate frameworks have since been proposed.
However, in the 1970s and 1980s, there were no grave computer threats because computers and the internet were still developing, and security threats were easily identifiable. More often, threats came from malicious insiders who gained unauthorized access to sensitive documents and files. Although malware and network breaches existed during the early years, they did not use them for financial gain. By the second half of the 1970s, established computer firms like IBM started offering commercial access control systems and computer security software products.
One of the earliest examples of an attack on a computer network was the computer worm Creeper written by Bob Thomas at BBN, which propagated through the ARPANET in 1971. The program was purely experimental in nature and carried no malicious payload. A later program, Reaper, was created by Ray Tomlinson in 1972 and used to destroy Creeper.
Between September 1986 and June 1987, a group of German hackers performed the first documented case of cyber espionage. The group hacked into American defense contractors, universities, and military base networks and sold gathered information to the Soviet KGB. The group was led by Markus Hess, who was arrested on 29 June 1987. He was convicted of espionage (along with two co-conspirators) on 15 Feb 1990.
In 1988, one of the first computer worms, called the Morris worm, was distributed via the Internet. It gained significant mainstream media attention.
In 1993, Netscape started developing the protocol SSL, shortly after the National Center for Supercomputing Applications (NCSA) launched Mosaic 1.0, the first web browser, in 1993. Netscape had SSL version 1.0 ready in 1994, but it was never released to the public due to many serious security vulnerabilities. These weaknesses included replay attacks and a vulnerability that allowed hackers to alter unencrypted communications sent by users. However, in February 1995, Netscape launched Version 2.0.
The National Security Agency (NSA) is responsible for the protection of U.S. information systems and also for collecting foreign intelligence. The agency analyzes commonly used software and system configurations to find security flaws, which it can use for offensive purposes against competitors of the United States.
NSA contractors created and sold click-and-shoot attack tools to US agencies and close allies, but eventually, the tools made their way to foreign adversaries. In 2016, NSAs own hacking tools were hacked, and they have been used by Russia and North Korea. NSA's employees and contractors have been recruited at high salaries by adversaries, anxious to compete in cyberwarfare. In 2007, the United States and Israel began exploiting security flaws in the Microsoft Windows operating system to attack and damage equipment used in Iran to refine nuclear materials. Iran responded by heavily investing in their own cyberwarfare capability, which it began using against the United States. | [
{
"paragraph_id": 0,
"text": "Computer security, cybersecurity, digital security or information technology security (IT security) is the protection of computer systems and networks from attacks by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The field is significant due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi. Also, due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, elections, and finance.",
"title": ""
},
{
"paragraph_id": 2,
"text": "A vulnerability is a weakness in design, implementation, operation, or internal control of a computer or system. Most of the vulnerabilities that have been discovered are documented in the Common Vulnerabilities and Exposures (CVE) database. An exploitable vulnerability is one for which at least one working attack or exploit exists. Vulnerabilities can be researched, reverse-engineered, hunted, or exploited using automated tools or customized scripts.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 3,
"text": "Various people or parties are vulnerable to cyber attacks, however different groups are likely to experience different types of attacks more than others.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 4,
"text": "In April 2023 the United Kingdom Department for Science, Innovation & Technology realised a report on cyber attacks over the last 12 months. They surveyed 2,263 UK businesses, 1,174 UK registered charities and 554 education institutions. The research found that \"32% of businesses and 24% of charities overall recall any breaches or attacks from the last 12 months.\" This figures were much higher for \"medium businesses (59%), large businesses (69%) and high-income charities with £500,000 or more in annual income (56%).\" Yet, although medium or large businesses are more often the victims, since larger companies have generally improved their security over the last decade, small and midsize businesses (SMBs) have also become increasing vulnerable as they often \"do not have advanced tools to defend the business.\" SMBs are most likely to be affected by malware, ransomware, phishing, man-in-the-middle attacks, and Denial-of Service (DoS) Attacks.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 5,
"text": "Normal people working for a business or simply using the internet are most likely to be affected by \"un-targeted\" cyber attacks. These are where attackers indiscriminately target as many devices, services or users as possible. They do this using techniques that take advantage of the \"openness\" of the Internet. These strategies mostly include phishing, ransomware, water holing and scanning.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 6,
"text": "To secure a computer system, it is important to understand the attacks that can be made against it, and these threats can typically be classified into one of the following categories:",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 7,
"text": "A backdoor in a computer system, a cryptosystem, or an algorithm, is any secret method of bypassing normal authentication or security controls. These weaknesses may exist for many reasons, including original design or poor configuration. Due to the nature of backdoors, they are of greater concern to companies and databases as opposed to individuals.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 8,
"text": "Backdoors may be added by an authorized party to allow some legitimate access, or by an attacker for malicious reasons. However, criminals often use malware to install backdoors, giving them remote administrative access to a system. Once they have access, cybercriminals can \"modify files, steal personal information, install unwanted software, and even take control of the entire computer.\"",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 9,
"text": "Backdoors can be very hard to detect, and are usually discovered by someone who has access to the application source code or intimate knowledge of the operating system of the computer.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 10,
"text": "Denial of service attacks (DoS) are designed to make a machine or network resource unavailable to its intended users. Attackers can deny service to individual victims, such as by deliberately entering a wrong password enough consecutive times to cause the victim's account to be locked, or they may overload the capabilities of a machine or network and block all users at once. While a network attack from a single IP address can be blocked by adding a new firewall rule, many forms of Distributed denial of service (DDoS) attacks are possible, where the attack comes from a large number of points – and defending is much more difficult. Such attacks can originate from the zombie computers of a botnet or from a range of other possible techniques, including distributed reflective denial of service (DRDoS), where innocent systems are fooled into sending traffic to the victim. With such attacks, the amplification factor makes the attack easier for the attacker because they have to use little bandwidth themselves.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 11,
"text": "To understand why attackers may carry out these attacks, see the 'attacker motivation' section.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 12,
"text": "A direct-access attack is when an unauthorized user (an attacker) gains physical access to a computer, most likely to directly copy data from it or to steal information. Attackers may also compromise security by making operating system modifications, installing software worms, keyloggers, covert listening devices or using wireless microphones. Even when the system is protected by standard security measures, these may be bypassed by booting another operating system or tool from a CD-ROM or other bootable media. Disk encryption and Trusted Platform Module are designed to prevent these attacks.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 13,
"text": "Direct service attackers are related in concept to direct memory attacks that allows an attacker to gain direct access to a computer's memory. The attacks \"take advantage of a feature of modern computers that allow certain devices, such as external hard drives, graphics cards or network cards, to access the computer's memory directly.\"",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 14,
"text": "To help prevent these attacks, computer users must ensure that they have a strong passwords, that their computer is locked at all times when they are not using it, and that they keep their computer with them at all times when traveling.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 15,
"text": "Eavesdropping is the act of surreptitiously listening to a private computer conversation (communication), usually between hosts on a network. It typically occurs when a user connects to a network where traffic is not secured or encrypted and sends sensitive business data to a colleague, which when listened to by an attacker could be exploited. Data transmitted across an \"open network\" allows an attacker to exploit a vulnerability and intercept it via various methods.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 16,
"text": "Unlike malware, direct-access attacks, or other forms of cyber attacks, eavesdropping attacks are unlikely to negatively affect the performance of networks or devices, making them difficult to notice. In fact, \"the attacker does not need to have any ongoing connection to the software at all. He or she can insert the software onto a compromised device, perhaps by direct insertion or perhaps by a virus or other malware, and then come back some time later to retrieve any data that is found or trigger the software to send the data at some determined time.\"",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 17,
"text": "Using a virtual private network (VPN), which encrypts data between two points, is one of the most common forms of protection against eavesdropping. Using the best form of encryption possible for wireless networks is best practice, as well as using HTTPS instead of unencrypted HTTP.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 18,
"text": "Programs such as Carnivore and NarusInSight have been used by the Federal Bureau of Investigation (FBI) and NSA to eavesdrop on the systems of internet service providers. Even machines that operate as a closed system (i.e., with no contact with the outside world) can be eavesdropped upon by monitoring the faint electromagnetic transmissions generated by the hardware. TEMPEST is a specification by the NSA referring to these attacks.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 19,
"text": "Malicious software (malware) is any software code or computer program \"intentionally written to harm a computer system or its users.\" Once present on a computer, it can leak sensitive details such as personal information, business information and passwords, can give control of the system to the attacker, and can corrupt or delete data permanently. Another type of malware is ransomware, which is when \"malware installs itself onto a victim's machine, encrypts their files, and then turns around and demands a ransom (usually in Bitcoin) to return that data to the user.\"",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 20,
"text": "Types of malware include some of the following:",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 21,
"text": "Surfacing in 2017, a new class of multi-vector, polymorphic cyber threats combined several types of attacks and changed form to avoid cybersecurity controls as they spread.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 22,
"text": "Multi-vector polymorphic attacks, as the name describes, are both multi-vectored and polymorphic. Firstly, they are a singular offensive that involves multiple methods of attack. In this sense, they are “multi-vectored (i.e. the attack can use multiple means of propagation such as via the Web, email and applications.\" However, they are also multi-staged, meaning that “they can infiltrate networks and move laterally inside the network.” The attacks can be polymorphic, meaning that the cyberattacks used such as viruses, worms or trojans “constantly change (“morph”) making it nearly impossible to detect them using signature-based defences.”",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 23,
"text": "Phishing is the attempt of acquiring sensitive information such as usernames, passwords, and credit card details directly from users by deceiving the users. Phishing is typically carried out by email spoofing, instant messaging, text message, or on a phone call, and it often directs users to enter details at a fake website whose look and feel are almost identical to the legitimate one. The fake website often asks for personal information, such as login details and passwords. This information can then be used to gain access to the individual's real account on the real website.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 24,
"text": "Preying on a victim's trust, phishing can be classified as a form of social engineering. Attackers are using creative ways to gain access to real accounts. A common scam is for attackers to send fake electronic invoices to individuals showing that they recently purchased music, apps, or others, and instructing them to click on a link if the purchases were not authorized. A more strategic type of phishing is spear-phishing which leverages personal or organization-specific details to make the attacker appear like a trusted source. Spear-phishing attacks target specific individuals, rather than the broad net cast by phishing attempts.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 25,
"text": "Privilege escalation describes a situation where an attacker with some level of restricted access is able to, without authorization, elevate their privileges or access level. For example, a standard computer user may be able to exploit a vulnerability in the system to gain access to restricted data; or even become root and have full unrestricted access to a system. The severity of attacks can range from attacks simply sending an unsolicited email to a ransomware attack on large amounts of data. Privilege escalation usually starts with social engineering techniques, often phishing.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 26,
"text": "Privilege escalation can be separated into to strategies, horizontal and vertical privilege escalation:",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 27,
"text": "Any computational system affects its environment in some form. This effect it has on its environment includes a wide range of criteria, which can range from electromagnetic radiation to residual effect on RAM cells which as a consequence make a Cold boot attack possible, to hardware implementation faults that allow for access and or guessing of other values that normally should be inaccessible. In Side-channel attack scenarios, the attacker would gather such information about a system or network to guess its internal state and as a result access the information which is assumed by the victim to be secure.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 28,
"text": "Social engineering, in the context of computer security, aims to convince a user to disclose secrets such as passwords, card numbers, etc. or grant physical access by, for example, impersonating a senior executive, bank, a contractor, or a customer. This generally involves exploiting people's trust, and relying on their cognitive biases. A common scam involves emails sent to accounting and finance department personnel, impersonating their CEO and urgently requesting some action. One of the main techniques of social engineering are phishing attacks.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 29,
"text": "In early 2016, the FBI reported that such business email compromise (BEC) scams had cost US businesses more than $2 billion in about two years.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 30,
"text": "In May 2016, the Milwaukee Bucks NBA team was the victim of this type of cyber scam with a perpetrator impersonating the team's president Peter Feigin, resulting in the handover of all the team's employees' 2015 W-2 tax forms.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 31,
"text": "Spoofing is an act of pretending to be a valid entity through the falsification of data (such as an IP address or username), in order to gain access to information or resources that one is otherwise unauthorized to obtain. Spoofing is closely related to phishing. There are several types of spoofing, including:",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 32,
"text": "In 2018, the cybersecurity firm Trellix published research on the life-threatening risk of spoofing in the healthcare industry.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 33,
"text": "Tampering describes a malicious modification or alteration of data. An intentional but unauthorized act resulting in the modification of a system, components of systems, its intended behavior, or data. So-called Evil Maid attacks and security services planting of surveillance capability into routers are examples.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 34,
"text": "HTML smuggling allows an attacker to \"smuggle\" a malicious code inside a particular HTML or web page. HTML files can carry payloads concealed as benign, inert data in order to defeat content filters. These payloads can be reconstructed on the other side of the filter.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 35,
"text": "When a target user opens the HTML, the malicious code is activated; the web browser then \"decodes\" the script, which then unleashes the malware onto the target's device.",
"title": "Vulnerabilities and attacks"
},
{
"paragraph_id": 36,
"text": "Employee behavior can have a big impact on information security in organizations. Cultural concepts can help different segments of the organization work effectively or work against effectiveness toward information security within an organization. Information security culture is the \"...totality of patterns of behavior in an organization that contributes to the protection of information of all kinds.\"",
"title": "Information security culture"
},
{
"paragraph_id": 37,
"text": "Andersson and Reimers (2014) found that employees often do not see themselves as part of their organization's information security effort and often take actions that impede organizational changes. Indeed, the Verizon Data Breach Investigations Report 2020, which examined 3,950 security breaches, discovered 30% of cybersecurity incidents involved internal actors within a company. Research shows information security culture needs to be improved continuously. In \"Information Security Culture from Analysis to Change\", authors commented, \"It's a never-ending process, a cycle of evaluation and change or maintenance.\" To manage the information security culture, five steps should be taken: pre-evaluation, strategic planning, operative planning, implementation, and post-evaluation.",
"title": "Information security culture"
},
{
"paragraph_id": 38,
"text": "In computer security, a countermeasure is an action, device, procedure or technique that reduces a threat, a vulnerability, or an attack by eliminating or preventing it, by minimizing the harm it can cause, or by discovering and reporting it so that corrective action can be taken.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 39,
"text": "Some common countermeasures are listed in the following sections:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 40,
"text": "Security by design, or alternately secure by design, means that the software has been designed from the ground up to be secure. In this case, security is considered a main feature.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 41,
"text": "The UK government's National Cyber Security Centre separate secure cyber design principles into five sections:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 42,
"text": "These design principles of security by design can include some of the following techniques:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 43,
"text": "Security architecture can be defined as the \"practice of designing computer systems to achieve security goals.\" These goals have overlap with the principles of \"security by design\" explored above, including to \"make initial compromise of the system difficult,\" and to \"limit the impact of any compromise.\" In practice, the role of a security architect would be to ensure the structure of a system reinforces the security of the system, and that new changes are safe and meet the security requirements of the organisation.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 44,
"text": "Similarly, Techopedia defines security architecture as \"a unified security design that addresses the necessities and potential risks involved in a certain scenario or environment. It also specifies when and where to apply security controls. The design process is generally reproducible.\" The key attributes of security architecture are:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 45,
"text": "Practicing security architecture provides the right foundation to systematically address business, IT and security concerns in an organization.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 46,
"text": "A state of computer security is the conceptual ideal, attained by the use of the three processes: threat prevention, detection, and response. These processes are based on various policies and system components, which include the following:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 47,
"text": "Today, computer security consists mainly of preventive measures, like firewalls or an exit procedure. A firewall can be defined as a way of filtering network data between a host or a network and another network, such as the Internet. They can be implemented as software running on the machine, hooking into the network stack (or, in the case of most UNIX-based operating systems such as Linux, built into the operating system kernel) to provide real-time filtering and blocking. Another implementation is a so-called physical firewall, which consists of a separate machine filtering network traffic. Firewalls are common amongst machines that are permanently connected to the Internet.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 48,
"text": "Some organizations are turning to big data platforms, such as Apache Hadoop, to extend data accessibility and machine learning to detect advanced persistent threats.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 49,
"text": "In order to ensure adequate security, the confidentiality, integrity and availability of a network, better known as the CIA triad, must be protected and is considered the foundation to information security. To achieve those objectives, administrative, physical and technical security measures should be employed. The amount of security afforded to an asset can only be determined when its value is known.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 50,
"text": "Vulnerability management is the cycle of identifying, fixing or mitigating vulnerabilities, especially in software and firmware. Vulnerability management is integral to computer security and network security.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 51,
"text": "Vulnerabilities can be discovered with a vulnerability scanner, which analyzes a computer system in search of known vulnerabilities, such as open ports, insecure software configuration, and susceptibility to malware. In order for these tools to be effective, they must be kept up to date with every new update the vendor release. Typically, these updates will scan for the new vulnerabilities that were introduced recently.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 52,
"text": "Beyond vulnerability scanning, many organizations contract outside security auditors to run regular penetration tests against their systems to identify vulnerabilities. In some sectors, this is a contractual requirement.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 53,
"text": "The act of assessing and reducing vulnerabilities to cyber attacks is commonly referred to as information technology security assessments. They aims to assess systems for risk and to predict and test for their vulnerabilities. While formal verification of the correctness of computer systems is possible, it is not yet common. Operating systems formally verified include seL4, and SYSGO's PikeOS – but these make up a very small percentage of the market.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 54,
"text": "It is possible to reduce an attacker's chances by keeping systems up to date with security patches and updates and/or hiring people with expertise in security. Large companies with significant threats can hire Security Operations Centre (SOC) Analysts. These are specialists in cyber defences, with their role ranging from \"conducting threat analysis to investigating reports of any new issues and preparing and testing disaster recovery plans.\"",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 55,
"text": "Whilst no measures can completely guarantee the prevention of an attack, these measures can help mitigate the damage of possible attacks. The effects of data loss/damage can be also reduced by careful backing up and insurance.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 56,
"text": "Outside of formal assessments, there are various methods of reducing vulnerabilities. Two factor authentication is a method for mitigating unauthorized access to a system or sensitive information. It requires something you know; a password or PIN, and something you have; a card, dongle, cellphone, or another piece of hardware. This increases security as an unauthorized person needs both of these to gain access.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 57,
"text": "Protecting against social engineering and direct computer access (physical) attacks can only be occur by non-computer means, which can be difficult to enforce, relative to the sensitivity of the information. Training is often involved to help mitigate this risk by improving people's knowledge of how to protect themselves and by increasing people's awareness of threats. However, even in highly disciplined environments (e.g. military organizations), social engineering attacks can still be difficult to foresee and prevent.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 58,
"text": "Inoculation, derived from inoculation theory, seeks to prevent social engineering and other fraudulent tricks or traps by instilling a resistance to persuasion attempts through exposure to similar or related attempts.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 59,
"text": "Hardware-based or assisted computer security also offers an alternative to software-only computer security. Using devices and methods such as dongles, trusted platform modules, intrusion-aware cases, drive locks, disabling USB ports, and mobile-enabled access may be considered more secure due to the physical access (or sophisticated backdoor access) required in order to be compromised. Each of these is covered in more detail below.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 60,
"text": "One use of the term computer security refers to technology that is used to implement secure operating systems. Using secure operating systems is a good way of ensuring computer security. These are systems that have achieved certification from an external security-auditing organization, the most popular evaluations are Common Criteria (CC).",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 61,
"text": "In software engineering, secure coding aims to guard against the accidental introduction of security vulnerabilities. It is also possible to create software designed from the ground up to be secure. Such systems are secure by design. Beyond this, formal verification aims to prove the correctness of the algorithms underlying a system; important for cryptographic protocols for example.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 62,
"text": "Within computer systems, two of the main security models capable of enforcing privilege separation are access control lists (ACLs) and role-based access control (RBAC).",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 63,
"text": "An access-control list (ACL), with respect to a computer file system, is a list of permissions associated with an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 64,
"text": "Role-based access control is an approach to restricting system access to authorized users, used by the majority of enterprises with more than 500 employees, and can implement mandatory access control (MAC) or discretionary access control (DAC).",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 65,
"text": "A further approach, capability-based security has been mostly restricted to research operating systems. Capabilities can, however, also be implemented at the language level, leading to a style of programming that is essentially a refinement of standard object-oriented design. An open-source project in the area is the E language.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 66,
"text": "The end-user is widely recognized as the weakest link in the security chain and it is estimated that more than 90% of security incidents and breaches involve some kind of human error. Among the most commonly recorded forms of errors and misjudgment are poor password management, sending emails containing sensitive data and attachments to the wrong recipient, the inability to recognize misleading URLs and to identify fake websites and dangerous email attachments. A common mistake that users make is saving their user id/password in their browsers to make it easier to log in to banking sites. This is a gift to attackers who have obtained access to a machine by some means. The risk may be mitigated by the use of two-factor authentication.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 67,
"text": "As the human component of cyber risk is particularly relevant in determining the global cyber risk an organization is facing, security awareness training, at all levels, not only provides formal compliance with regulatory and industry mandates but is considered essential in reducing cyber risk and protecting individuals and companies from the great majority of cyber threats.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 68,
"text": "The focus on the end-user represents a profound cultural change for many security practitioners, who have traditionally approached cybersecurity exclusively from a technical perspective, and moves along the lines suggested by major security centers to develop a culture of cyber awareness within the organization, recognizing that a security-aware user provides an important line of defense against cyber attacks.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 69,
"text": "Related to end-user training, digital hygiene or cyber hygiene is a fundamental principle relating to information security and, as the analogy with personal hygiene shows, is the equivalent of establishing simple routine measures to minimize the risks from cyber threats. The assumption is that good cyber hygiene practices can give networked users another layer of protection, reducing the risk that one vulnerable node will be used to either mount attacks or compromise another node or network, especially from common cyberattacks. Cyber hygiene should also not be mistaken for proactive cyber defence, a military term.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 70,
"text": "The most common acts of digital/cyber hygiene can include updating malware protection, cloud back-ups, passwords, and ensuring restricted admin rights and network firewalls. As opposed to a purely technology-based defense against threats, cyber hygiene mostly regards routine measures that are technically simple to implement and mostly dependent on discipline or education. It can be thought of as an abstract list of tips or measures that have been demonstrated as having a positive effect on personal and/or collective digital security. As such, these measures can be performed by laypeople, not just security experts.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 71,
"text": "Cyber hygiene relates to personal hygiene as computer viruses relate to biological viruses (or pathogens). However, while the term computer virus was coined almost simultaneously with the creation of the first working computer viruses, the term cyber hygiene is a much later invention, perhaps as late as 2000 by Internet pioneer Vint Cerf. It has since been adopted by the Congress and Senate of the United States, the FBI, EU institutions and heads of state.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 72,
"text": "Responding to attempted security breaches is often very difficult for a variety of reasons, including:",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 73,
"text": "Where an attack succeeds and a breach occurs, many jurisdictions now have in place mandatory security breach notification laws.",
"title": "Computer protection (countermeasures)"
},
{
"paragraph_id": 74,
"text": "The growth in the number of computer systems and the increasing reliance upon them by individuals, businesses, industries, and governments means that there are an increasing number of systems at risk.",
"title": "Systems at risk"
},
{
"paragraph_id": 75,
"text": "The computer systems of financial regulators and financial institutions like the U.S. Securities and Exchange Commission, SWIFT, investment banks, and commercial banks are prominent hacking targets for cybercriminals interested in manipulating markets and making illicit gains. Websites and apps that accept or store credit card numbers, brokerage accounts, and bank account information are also prominent hacking targets, because of the potential for immediate financial gain from transferring money, making purchases, or selling the information on the black market. In-store payment systems and ATMs have also been tampered with in order to gather customer account data and PINs.",
"title": "Systems at risk"
},
{
"paragraph_id": 76,
"text": "The UCLA Internet Report: Surveying the Digital Future (2000) found that the privacy of personal data created barriers to online sales and that more than nine out of 10 internet users were somewhat or very concerned about credit card security.",
"title": "Systems at risk"
},
{
"paragraph_id": 77,
"text": "The most common web technologies for improving security between browsers and websites are named SSL (Secure Sockets Layer), and its successor TLS (Transport Layer Security), identity management and authentication services, and domain name services allow companies and consumers to engage in secure communications and commerce. Several versions of SSL and TLS are commonly used today in applications such as web browsing, e-mail, internet faxing, instant messaging, and VoIP (voice-over-IP). There are various interoperable implementations of these technologies, including at least one implementation that is open source. Open source allows anyone to view the application's source code, and look for and report vulnerabilities.",
"title": "Systems at risk"
},
{
"paragraph_id": 78,
"text": "The credit card companies Visa and MasterCard cooperated to develop the secure EMV chip which is embedded in credit cards. Further developments include the Chip Authentication Program where banks give customers hand-held card readers to perform online secure transactions. Other developments in this arena include the development of technology such as Instant Issuance which has enabled shopping mall kiosks acting on behalf of banks to issue on-the-spot credit cards to interested customers.",
"title": "Systems at risk"
},
{
"paragraph_id": 79,
"text": "Computers control functions at many utilities, including coordination of telecommunications, the power grid, nuclear power plants, and valve opening and closing in water and gas networks. The Internet is a potential attack vector for such machines if connected, but the Stuxnet worm demonstrated that even equipment controlled by computers not connected to the Internet can be vulnerable. In 2014, the Computer Emergency Readiness Team, a division of the Department of Homeland Security, investigated 79 hacking incidents at energy companies.",
"title": "Systems at risk"
},
{
"paragraph_id": 80,
"text": "The aviation industry is very reliant on a series of complex systems which could be attacked. A simple power outage at one airport can cause repercussions worldwide, much of the system relies on radio transmissions which could be disrupted, and controlling aircraft over oceans is especially dangerous because radar surveillance only extends 175 to 225 miles offshore. There is also potential for attack from within an aircraft.",
"title": "Systems at risk"
},
{
"paragraph_id": 81,
"text": "In Europe, with the (Pan-European Network Service) and NewPENS, and in the US with the NextGen program, air navigation service providers are moving to create their own dedicated networks.",
"title": "Systems at risk"
},
{
"paragraph_id": 82,
"text": "Many modern passports are now biometric passports, containing an embedded microchip that stores a digitized photograph and personal information such as name, gender, and date of birth. In addition, more countries are introducing facial recognition technology to reduce identity-related fraud. The introduction of the ePassport has assisted border officials in verifying the identity of the passport holder, thus allowing for quick passenger processing. Plans are under way in the US, the UK, and Australia to introduce SmartGate kiosks with both retina and fingerprint recognition technology. The airline industry is moving from the use of traditional paper tickets towards the use of electronic tickets (e-tickets). These have been made possible by advances in online credit card transactions in partnership with the airlines. Long-distance bus companies are also switching over to e-ticketing transactions today.",
"title": "Systems at risk"
},
{
"paragraph_id": 83,
"text": "The consequences of a successful attack range from loss of confidentiality to loss of system integrity, air traffic control outages, loss of aircraft, and even loss of life.",
"title": "Systems at risk"
},
{
"paragraph_id": 84,
"text": "Desktop computers and laptops are commonly targeted to gather passwords or financial account information or to construct a botnet to attack another target. Smartphones, tablet computers, smart watches, and other mobile devices such as quantified self devices like activity trackers have sensors such as cameras, microphones, GPS receivers, compasses, and accelerometers which could be exploited, and may collect personal information, including sensitive health information. WiFi, Bluetooth, and cell phone networks on any of these devices could be used as attack vectors, and sensors might be remotely activated after a successful breach.",
"title": "Systems at risk"
},
{
"paragraph_id": 85,
"text": "The increasing number of home automation devices such as the Nest thermostat are also potential targets.",
"title": "Systems at risk"
},
{
"paragraph_id": 86,
"text": "Today many health-care providers and health insurance companies use the internet to provide enhanced products and services, for example through use of tele-health to potentially offer better quality and access to healthcare, or fitness trackers to lower insurance premiums.",
"title": "Systems at risk"
},
{
"paragraph_id": 87,
"text": "The health care company Humana partners with WebMD, Oracle Corporation, EDS and Microsoft to enable its members to access their health care records, as well as to provide an overview of health care plans. Patient records are increasingly being placed on secure in-house networks, alleviating the need for extra storage space.",
"title": "Systems at risk"
},
{
"paragraph_id": 88,
"text": "Large corporations are common targets. In many cases attacks are aimed at financial gain through identity theft and involve data breaches. Examples include the loss of millions of clients' credit card and financial details by Home Depot, Staples, Target Corporation, and Equifax.",
"title": "Systems at risk"
},
{
"paragraph_id": 89,
"text": "Medical records have been targeted in general identify theft, health insurance fraud, and impersonating patients to obtain prescription drugs for recreational purposes or resale. Although cyber threats continue to increase, 62% of all organizations did not increase security training for their business in 2015.",
"title": "Systems at risk"
},
{
"paragraph_id": 90,
"text": "Not all attacks are financially motivated, however: security firm HBGary Federal had a serious series of attacks in 2011 from hacktivist group Anonymous in retaliation for the firm's CEO claiming to have infiltrated their group, and Sony Pictures was hacked in 2014 with the apparent dual motive of embarrassing the company through data leaks and crippling the company by wiping workstations and servers.",
"title": "Systems at risk"
},
{
"paragraph_id": 91,
"text": "Vehicles are increasingly computerized, with engine timing, cruise control, anti-lock brakes, seat belt tensioners, door locks, airbags and advanced driver-assistance systems on many models. Additionally, connected cars may use WiFi and Bluetooth to communicate with onboard consumer devices and the cell phone network. Self-driving cars are expected to be even more complex. All of these systems carry some security risks, and such issues have gained wide attention.",
"title": "Systems at risk"
},
{
"paragraph_id": 92,
"text": "Simple examples of risk include a malicious compact disc being used as an attack vector, and the car's onboard microphones being used for eavesdropping. However, if access is gained to a car's internal controller area network, the danger is much greater – and in a widely publicized 2015 test, hackers remotely carjacked a vehicle from 10 miles away and drove it into a ditch.",
"title": "Systems at risk"
},
{
"paragraph_id": 93,
"text": "Manufacturers are reacting in numerous ways, with Tesla in 2016 pushing out some security fixes over the air into its cars' computer systems. In the area of autonomous vehicles, in September 2016 the United States Department of Transportation announced some initial safety standards, and called for states to come up with uniform policies.",
"title": "Systems at risk"
},
{
"paragraph_id": 94,
"text": "Additionally, e-Drivers' licenses are being developed using the same technology. For example, Mexico's licensing authority (ICV) has used a smart card platform to issue the first e-Drivers' licenses to the city of Monterrey, in the state of Nuevo León.",
"title": "Systems at risk"
},
{
"paragraph_id": 95,
"text": "Shipping companies have adopted RFID (Radio Frequency Identification) technology as an efficient, digitally secure, tracking device. Unlike a barcode, RFID can be read up to 20 feet away. RFID is used by FedEx and UPS.",
"title": "Systems at risk"
},
{
"paragraph_id": 96,
"text": "Government and military computer systems are commonly attacked by activists and foreign powers. Local and regional government infrastructure such as traffic light controls, police and intelligence agency communications, personnel records, as well as student records.",
"title": "Systems at risk"
},
{
"paragraph_id": 97,
"text": "The FBI, CIA, and Pentagon, all utilize secure controlled access technology for any of their buildings. However, the use of this form of technology is spreading into the entrepreneurial world. More and more companies are taking advantage of the development of digitally secure controlled access technology. GE's ACUVision, for example, offers a single panel platform for access control, alarm monitoring and digital recording.",
"title": "Systems at risk"
},
{
"paragraph_id": 98,
"text": "The Internet of things (IoT) is the network of physical objects such as devices, vehicles, and buildings that are embedded with electronics, software, sensors, and network connectivity that enables them to collect and exchange data. Concerns have been raised that this is being developed without appropriate consideration of the security challenges involved.",
"title": "Systems at risk"
},
{
"paragraph_id": 99,
"text": "While the IoT creates opportunities for more direct integration of the physical world into computer-based systems, it also provides opportunities for misuse. In particular, as the Internet of Things spreads widely, cyberattacks are likely to become an increasingly physical (rather than simply virtual) threat. If a front door's lock is connected to the Internet, and can be locked/unlocked from a phone, then a criminal could enter the home at the press of a button from a stolen or hacked phone. People could stand to lose much more than their credit card numbers in a world controlled by IoT-enabled devices. Thieves have also used electronic means to circumvent non-Internet-connected hotel door locks.",
"title": "Systems at risk"
},
{
"paragraph_id": 100,
"text": "An attack that targets physical infrastructure and/or human lives is sometimes referred to as a cyber-kinetic attack. As IoT devices and appliances gain currency, cyber-kinetic attacks can become pervasive and significantly damaging.",
"title": "Systems at risk"
},
{
"paragraph_id": 101,
"text": "Medical devices have either been successfully attacked or had potentially deadly vulnerabilities demonstrated, including both in-hospital diagnostic equipment and implanted devices including pacemakers and insulin pumps. There are many reports of hospitals and hospital organizations getting hacked, including ransomware attacks, Windows XP exploits, viruses, and data breaches of sensitive data stored on hospital servers. On 28 December 2016 the US Food and Drug Administration released its recommendations for how medical device manufacturers should maintain the security of Internet-connected devices – but no structure for enforcement.",
"title": "Systems at risk"
},
{
"paragraph_id": 102,
"text": "In distributed generation systems, the risk of a cyber attack is real, according to Daily Energy Insider. An attack could cause a loss of power in a large area for a long period of time, and such an attack could have just as severe consequences as a natural disaster. The District of Columbia is considering creating a Distributed Energy Resources (DER) Authority within the city, with the goal being for customers to have more insight into their own energy use and giving the local electric utility, Pepco, the chance to better estimate energy demand. The D.C. proposal, however, would \"allow third-party vendors to create numerous points of energy distribution, which could potentially create more opportunities for cyber attackers to threaten the electric grid.\"",
"title": "Systems at risk"
},
{
"paragraph_id": 103,
"text": "Perhaps the most widely known digitally secure telecommunication device is the SIM (Subscriber Identity Module) card, a device that is embedded in most of the world's cellular devices before any service can be obtained. The SIM card is just the beginning of this digitally secure environment.",
"title": "Systems at risk"
},
{
"paragraph_id": 104,
"text": "The Smart Card Web Servers draft standard (SCWS) defines the interfaces to an HTTP server in a smart card. Tests are being conducted to secure OTA (\"over-the-air\") payment and credit card information from and to a mobile phone. Combination SIM/DVD devices are being developed through Smart Video Card technology which embeds a DVD-compliant optical disc into the card body of a regular SIM card.",
"title": "Systems at risk"
},
{
"paragraph_id": 105,
"text": "Other telecommunication developments involving digital security include mobile signatures, which use the embedded SIM card to generate a legally binding electronic signature.",
"title": "Systems at risk"
},
{
"paragraph_id": 106,
"text": "Serious financial damage has been caused by security breaches, but because there is no standard model for estimating the cost of an incident, the only data available is that which is made public by the organizations involved. \"Several computer security consulting firms produce estimates of total worldwide losses attributable to virus and worm attacks and to hostile digital acts in general. The 2003 loss estimates by these firms range from $13 billion (worms and viruses only) to $226 billion (for all forms of covert attacks). The reliability of these estimates is often challenged; the underlying methodology is basically anecdotal.\"",
"title": "Cost and impact of security breaches"
},
{
"paragraph_id": 107,
"text": "However, reasonable estimates of the financial cost of security breaches can actually help organizations make rational investment decisions. According to the classic Gordon-Loeb Model analyzing the optimal investment level in information security, one can conclude that the amount a firm spends to protect information should generally be only a small fraction of the expected loss (i.e., the expected value of the loss resulting from a cyber/information security breach).",
"title": "Cost and impact of security breaches"
},
{
"paragraph_id": 108,
"text": "As with physical security, the motivations for breaches of computer security vary between attackers. Some are thrill-seekers or vandals, some are activists, others are criminals looking for financial gain. State-sponsored attackers are now common and well resourced but started with amateurs such as Markus Hess who hacked for the KGB, as recounted by Clifford Stoll in The Cuckoo's Egg.",
"title": "Attacker motivation"
},
{
"paragraph_id": 109,
"text": "Attackers motivations can vary for all types of attacks from pleasure to for political goals. For example, \"hacktivists\" may target a company a company or organisation that carries out activities they do not agree with. This would be to create bad publicity for the company by having its website crash.",
"title": "Attacker motivation"
},
{
"paragraph_id": 110,
"text": "High capability hackers, often with larger backing or state sponsorship, may attack based on the demands of their financial backers. These attacks are more likely to attempt more serious attack. An example of a more serious attack was the 2015 Ukraine power grid hack, which reportedly utilised the spear-phising, destruction of files, and denial-of-service attacks to carry out the full attack.",
"title": "Attacker motivation"
},
{
"paragraph_id": 111,
"text": "Additionally, recent attacker motivations can be traced back to extremist organizations seeking to gain political advantage or disrupt social agendas. The growth of the internet, mobile technologies, and inexpensive computing devices have led to a rise in capabilities but also to the risk to environments that are deemed as vital to operations. All critical targeted environments are susceptible to compromise and this has led to a series of proactive studies on how to migrate the risk by taking into consideration motivations by these types of actors. Several stark differences exist between the hacker motivation and that of nation state actors seeking to attack based on an ideological preference.",
"title": "Attacker motivation"
},
{
"paragraph_id": 112,
"text": "A standard part of threat modeling for any particular system is to identify what might motivate an attack on that system, and who might be motivated to breach it. The level and detail of precautions will vary depending on the system to be secured. A home personal computer, bank, and classified military network face very different threats, even when the underlying technologies in use are similar.",
"title": "Attacker motivation"
},
{
"paragraph_id": 113,
"text": "Computer security incident management is an organized approach to addressing and managing the aftermath of a computer security incident or compromise with the goal of preventing a breach or thwarting a cyberattack. An incident that is not identified and managed at the time of intrusion typically escalates to a more damaging event such as a data breach or system failure. The intended outcome of a computer security incident response plan is to contain the incident, limit damage and assist recovery to business as usual. Responding to compromises quickly can mitigate exploited vulnerabilities, restore services and processes and minimize losses. Incident response planning allows an organization to establish a series of best practices to stop an intrusion before it causes damage. Typical incident response plans contain a set of written instructions that outline the organization's response to a cyberattack. Without a documented plan in place, an organization may not successfully detect an intrusion or compromise and stakeholders may not understand their roles, processes and procedures during an escalation, slowing the organization's response and resolution.",
"title": "Computer security incident management"
},
{
"paragraph_id": 114,
"text": "There are four key components of a computer security incident response plan:",
"title": "Computer security incident management"
},
{
"paragraph_id": 115,
"text": "Some illustrative examples of different types of computer security breaches are given below.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 116,
"text": "In 1988, 60,000 computers were connected to the Internet, and most were mainframes, minicomputers and professional workstations. On 2 November 1988, many started to slow down, because they were running a malicious code that demanded processor time and that spread itself to other computers – the first internet computer worm. The software was traced back to 23-year-old Cornell University graduate student Robert Tappan Morris who said \"he wanted to count how many machines were connected to the Internet\".",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 117,
"text": "In 1994, over a hundred intrusions were made by unidentified crackers into the Rome Laboratory, the US Air Force's main command and research facility. Using trojan horses, hackers were able to obtain unrestricted access to Rome's networking systems and remove traces of their activities. The intruders were able to obtain classified files, such as air tasking order systems data and furthermore able to penetrate connected networks of National Aeronautics and Space Administration's Goddard Space Flight Center, Wright-Patterson Air Force Base, some Defense contractors, and other private sector organizations, by posing as a trusted Rome center user.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 118,
"text": "In early 2007, American apparel and home goods company TJX announced that it was the victim of an unauthorized computer systems intrusion and that the hackers had accessed a system that stored data on credit card, debit card, check, and merchandise return transactions.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 119,
"text": "In 2010, the computer worm known as Stuxnet reportedly ruined almost one-fifth of Iran's nuclear centrifuges. It did so by disrupting industrial programmable logic controllers (PLCs) in a targeted attack. This is generally believed to have been launched by Israel and the United States to disrupt Iran's nuclear program – although neither has publicly admitted this.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 120,
"text": "In early 2013, documents provided by Edward Snowden were published by The Washington Post and The Guardian exposing the massive scale of NSA global surveillance. There were also indications that the NSA may have inserted a backdoor in a NIST standard for encryption. This standard was later withdrawn due to widespread criticism. The NSA additionally were revealed to have tapped the links between Google's data centers.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 121,
"text": "A Ukrainian hacker known as Rescator broke into Target Corporation computers in 2013, stealing roughly 40 million credit cards, and then Home Depot computers in 2014, stealing between 53 and 56 million credit card numbers. Warnings were delivered at both corporations, but ignored; physical security breaches using self checkout machines are believed to have played a large role. \"The malware utilized is absolutely unsophisticated and uninteresting,\" says Jim Walter, director of threat intelligence operations at security technology company McAfee – meaning that the heists could have easily been stopped by existing antivirus software had administrators responded to the warnings. The size of the thefts has resulted in major attention from state and Federal United States authorities and the investigation is ongoing.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 122,
"text": "In April 2015, the Office of Personnel Management discovered it had been hacked more than a year earlier in a data breach, resulting in the theft of approximately 21.5 million personnel records handled by the office. The Office of Personnel Management hack has been described by federal officials as among the largest breaches of government data in the history of the United States. Data targeted in the breach included personally identifiable information such as Social Security numbers, names, dates and places of birth, addresses, and fingerprints of current and former government employees as well as anyone who had undergone a government background check. It is believed the hack was perpetrated by Chinese hackers.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 123,
"text": "In July 2015, a hacker group is known as The Impact Team successfully breached the extramarital relationship website Ashley Madison, created by Avid Life Media. The group claimed that they had taken not only company data but user data as well. After the breach, The Impact Team dumped emails from the company's CEO, to prove their point, and threatened to dump customer data unless the website was taken down permanently. When Avid Life Media did not take the site offline the group released two more compressed files, one 9.7GB and the second 20GB. After the second data dump, Avid Life Media CEO Noel Biderman resigned; but the website remained to function.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 124,
"text": "In June 2021, the cyber attack took down the largest fuel pipeline in the U.S. and led to shortages across the East Coast.",
"title": "Notable attacks and breaches"
},
{
"paragraph_id": 125,
"text": "International legal issues of cyber attacks are complicated in nature. There is no global base of common rules to judge, and eventually punish, cybercrimes and cybercriminals - and where security firms or agencies do locate the cybercriminal behind the creation of a particular piece of malware or form of cyber attack, often the local authorities cannot take action due to lack of laws under which to prosecute. Proving attribution for cybercrimes and cyberattacks is also a major problem for all law enforcement agencies. \"Computer viruses switch from one country to another, from one jurisdiction to another – moving around the world, using the fact that we don't have the capability to globally police operations like this. So the Internet is as if someone [had] given free plane tickets to all the online criminals of the world.\" The use of techniques such as dynamic DNS, fast flux and bullet proof servers add to the difficulty of investigation and enforcement.",
"title": "Legal issues and global regulation"
},
{
"paragraph_id": 126,
"text": "The role of the government is to make regulations to force companies and organizations to protect their systems, infrastructure and information from any cyberattacks, but also to protect its own national infrastructure such as the national power-grid.",
"title": "Role of government"
},
{
"paragraph_id": 127,
"text": "The government's regulatory role in cyberspace is complicated. For some, cyberspace was seen as a virtual space that was to remain free of government intervention, as can be seen in many of today's libertarian blockchain and bitcoin discussions.",
"title": "Role of government"
},
{
"paragraph_id": 128,
"text": "Many government officials and experts think that the government should do more and that there is a crucial need for improved regulation, mainly due to the failure of the private sector to solve efficiently the cybersecurity problem. R. Clarke said during a panel discussion at the RSA Security Conference in San Francisco, he believes that the \"industry only responds when you threaten regulation. If the industry doesn't respond (to the threat), you have to follow through.\" On the other hand, executives from the private sector agree that improvements are necessary, but think that government intervention would affect their ability to innovate efficiently. Daniel R. McCarthy analyzed this public-private partnership in cybersecurity and reflected on the role of cybersecurity in the broader constitution of political order.",
"title": "Role of government"
},
{
"paragraph_id": 129,
"text": "On 22 May 2020, the UN Security Council held its second ever informal meeting on cybersecurity to focus on cyber challenges to international peace. According to UN Secretary-General António Guterres, new technologies are too often used to violate rights.",
"title": "Role of government"
},
{
"paragraph_id": 130,
"text": "Many different teams and organizations exist, including:",
"title": "International actions"
},
{
"paragraph_id": 131,
"text": "On 14 April 2016, the European Parliament and the Council of the European Union adopted the General Data Protection Regulation (GDPR). The GDPR, which came into force on 25 May 2018, grants individuals within the European Union (EU) and the European Economic Area (EEA) the right to the protection of personal data. The regulation requires that any entity that processes personal data incorporate data protection by design and by default. It also requires that certain organizations appoint a Data Protection Officer (DPO).",
"title": "International actions"
},
{
"paragraph_id": 132,
"text": "Most countries have their own computer emergency response team to protect network security.",
"title": "National actions"
},
{
"paragraph_id": 133,
"text": "Since 2010, Canada has had a cybersecurity strategy. This functions as a counterpart document to the National Strategy and Action Plan for Critical Infrastructure. The strategy has three main pillars: securing government systems, securing vital private cyber systems, and helping Canadians to be secure online. There is also a Cyber Incident Management Framework to provide a coordinated response in the event of a cyber incident.",
"title": "National actions"
},
{
"paragraph_id": 134,
"text": "The Canadian Cyber Incident Response Centre (CCIRC) is responsible for mitigating and responding to threats to Canada's critical infrastructure and cyber systems. It provides support to mitigate cyber threats, technical support to respond & recover from targeted cyber attacks, and provides online tools for members of Canada's critical infrastructure sectors. It posts regular cybersecurity bulletins & operates an online reporting tool where individuals and organizations can report a cyber incident.",
"title": "National actions"
},
{
"paragraph_id": 135,
"text": "To inform the general public on how to protect themselves online, Public Safety Canada has partnered with STOP.THINK.CONNECT, a coalition of non-profit, private sector, and government organizations, and launched the Cyber Security Cooperation Program. They also run the GetCyberSafe portal for Canadian citizens, and Cyber Security Awareness Month during October.",
"title": "National actions"
},
{
"paragraph_id": 136,
"text": "Public Safety Canada aims to begin an evaluation of Canada's cybersecurity strategy in early 2015.",
"title": "National actions"
},
{
"paragraph_id": 137,
"text": "Australian federal government announced an $18.2 million investment to fortify the cybersecurity resilience of small and medium enterprises (SMEs) and enhance their capabilities in responding to cyber threats. This financial backing is an integral component of the soon-to-be-unveiled 2023-2030 Australian Cyber Security Strategy, slated for release within the current week. A substantial allocation of $7.2 million is earmarked for the establishment of a voluntary cyber health check program, facilitating businesses in conducting a comprehensive and tailored self-assessment of their cybersecurity upskill.",
"title": "National actions"
},
{
"paragraph_id": 138,
"text": "This avant-garde health assessment serves as a diagnostic tool, enabling enterprises to ascertain the robustness of Australia's cyber security regulations. Furthermore, it affords them access to a repository of educational resources and materials, fostering the acquisition of skills necessary for an elevated cybersecurity posture. This groundbreaking initiative was jointly disclosed by Minister for Cyber Security Clare O'Neil and Minister for Small Business Julie Collins.",
"title": "National actions"
},
{
"paragraph_id": 139,
"text": "The United States has its first fully formed cyber plan in 15 years, as a result of the release of this National Cyber plan. In this policy, the US says it will: Protect the country by keeping networks, systems, functions, and data safe; Promote American wealth by building a strong digital economy and encouraging strong domestic innovation; Peace and safety should be kept by making it easier for the US to stop people from using computer tools for bad things, working with friends and partners to do this; and Increase the United States' impact around the world to support the main ideas behind an open, safe, reliable, and compatible Internet. The new U.S. cyber strategy seeks to allay some of those concerns by promoting responsible behavior in cyberspace, urging nations to adhere to a set of norms, both through international law and voluntary standards. It also calls for specific measures to harden U.S. government networks from attacks, like the June 2015 intrusion into the U.S. Office of Personnel Management (OPM), which compromised the records of about 4.2 million current and former government employees. And the strategy calls for the U.S. to continue to name and shame bad cyber actors, calling them out publicly for attacks when possible, along with the use of economic sanctions and diplomatic pressure.",
"title": "National actions"
},
{
"paragraph_id": 140,
"text": "Some provisions for cybersecurity have been incorporated into rules framed under the Information Technology Act 2000.",
"title": "National actions"
},
{
"paragraph_id": 141,
"text": "The National Cyber Security Policy 2013 is a policy framework by the Ministry of Electronics and Information Technology (MeitY) which aims to protect the public and private infrastructure from cyberattacks, and safeguard \"information, such as personal information (of web users), financial and banking information and sovereign data\". CERT- In is the nodal agency which monitors the cyber threats in the country. The post of National Cyber Security Coordinator has also been created in the Prime Minister's Office (PMO).",
"title": "National actions"
},
{
"paragraph_id": 142,
"text": "The Indian Companies Act 2013 has also introduced cyber law and cybersecurity obligations on the part of Indian directors. Some provisions for cybersecurity have been incorporated into rules framed under the Information Technology Act 2000 Update in 2013.",
"title": "National actions"
},
{
"paragraph_id": 143,
"text": "Following cyberattacks in the first half of 2013, when the government, news media, television stations, and bank websites were compromised, the national government committed to the training of 5,000 new cybersecurity experts by 2017. The South Korean government blamed its northern counterpart for these attacks, as well as incidents that occurred in 2009, 2011, and 2012, but Pyongyang denies the accusations.",
"title": "National actions"
},
{
"paragraph_id": 144,
"text": "The 1986 18 U.S.C. § 1030, the Computer Fraud and Abuse Act is the key legislation. It prohibits unauthorized access or damage of protected computers as defined in 18 U.S.C. § 1030(e)(2). Although various other measures have been proposed – none has succeeded.",
"title": "National actions"
},
{
"paragraph_id": 145,
"text": "In 2013, executive order 13636 Improving Critical Infrastructure Cybersecurity was signed, which prompted the creation of the NIST Cybersecurity Framework.",
"title": "National actions"
},
{
"paragraph_id": 146,
"text": "In response to the Colonial Pipeline ransomware attack President Joe Biden signed Executive Order 14028 on May 12, 2021, to increase software security standards for sales to the government, tighten detection and security on existing systems, improve information sharing and training, establish a Cyber Safety Review Board, and improve incident response.",
"title": "National actions"
},
{
"paragraph_id": 147,
"text": "The General Services Administration (GSA) has standardized the penetration test service as a pre-vetted support service, to rapidly address potential vulnerabilities, and stop adversaries before they impact US federal, state and local governments. These services are commonly referred to as Highly Adaptive Cybersecurity Services (HACS).",
"title": "National actions"
},
{
"paragraph_id": 148,
"text": "The Department of Homeland Security has a dedicated division responsible for the response system, risk management program and requirements for cybersecurity in the United States called the National Cyber Security Division. The division is home to US-CERT operations and the National Cyber Alert System. The National Cybersecurity and Communications Integration Center brings together government organizations responsible for protecting computer networks and networked infrastructure.",
"title": "National actions"
},
{
"paragraph_id": 149,
"text": "The third priority of the FBI is to: \"Protect the United States against cyber-based attacks and high-technology crimes\", and they, along with the National White Collar Crime Center (NW3C), and the Bureau of Justice Assistance (BJA) are part of the multi-agency task force, The Internet Crime Complaint Center, also known as IC3.",
"title": "National actions"
},
{
"paragraph_id": 150,
"text": "In addition to its own specific duties, the FBI participates alongside non-profit organizations such as InfraGard.",
"title": "National actions"
},
{
"paragraph_id": 151,
"text": "The Computer Crime and Intellectual Property Section (CCIPS) operates in the United States Department of Justice Criminal Division. The CCIPS is in charge of investigating computer crime and intellectual property crime and is specialized in the search and seizure of digital evidence in computers and networks. In 2017, CCIPS published A Framework for a Vulnerability Disclosure Program for Online Systems to help organizations \"clearly describe authorized vulnerability disclosure and discovery conduct, thereby substantially reducing the likelihood that such described activities will result in a civil or criminal violation of law under the Computer Fraud and Abuse Act (18 U.S.C. § 1030).\"",
"title": "National actions"
},
{
"paragraph_id": 152,
"text": "The United States Cyber Command, also known as USCYBERCOM, \"has the mission to direct, synchronize, and coordinate cyberspace planning and operations to defend and advance national interests in collaboration with domestic and international partners.\" It has no role in the protection of civilian networks.",
"title": "National actions"
},
{
"paragraph_id": 153,
"text": "The U.S. Federal Communications Commission's role in cybersecurity is to strengthen the protection of critical communications infrastructure, to assist in maintaining the reliability of networks during disasters, to aid in swift recovery after, and to ensure that first responders have access to effective communications services.",
"title": "National actions"
},
{
"paragraph_id": 154,
"text": "The Food and Drug Administration has issued guidance for medical devices, and the National Highway Traffic Safety Administration is concerned with automotive cybersecurity. After being criticized by the Government Accountability Office, and following successful attacks on airports and claimed attacks on airplanes, the Federal Aviation Administration has devoted funding to securing systems on board the planes of private manufacturers, and the Aircraft Communications Addressing and Reporting System. Concerns have also been raised about the future Next Generation Air Transportation System.",
"title": "National actions"
},
{
"paragraph_id": 155,
"text": "The US Department of Defense (DoD) issued DoD Directive 8570 in 2004, supplemented by DoD Directive 8140, requiring all DoD employees and all DoD contract personnel involved in information assurance roles and activities to earn and maintain various industry Information Technology (IT) certifications in an effort to ensure that all DoD personnel involved in network infrastructure defense have minimum levels of IT industry recognized knowledge, skills and abilities (KSA). Andersson and Reimers (2019) report these certifications range from CompTIA's A+ and Security+ through the ICS2.org's CISSP, etc.",
"title": "National actions"
},
{
"paragraph_id": 156,
"text": "Computer emergency response team is a name given to expert groups that handle computer security incidents. In the US, two distinct organizations exist, although they do work closely together.",
"title": "National actions"
},
{
"paragraph_id": 157,
"text": "In the context of U.S. nuclear power plants, the U.S. Nuclear Regulatory Commission (NRC) outlines cybersecurity requirements under 10 CFR Part 73, specifically in §73.54. This section mandates that licensees provide high assurance against cyber attacks for digital equipment and computers and communications systems related to safety, security, emergency preparedness, and support systems. Licensees must submit a cybersecurity plan, establish a comprehensive cybersecurity program, and implement defense-in-depth strategies to protect against cyber threats. The plan must also include incident response and recovery measures (i.e., Contingency Plans, Contingency Plans for Power Grid) for cyber attacks. Details can be found in 10 CFR 73.54, Protection of digital computer and communication systems and networks.",
"title": "U.S. NRC, 10 CFR 73.54 Cybersecurity"
},
{
"paragraph_id": 158,
"text": "The Nuclear Energy Institute's NEI 08-09 document, \"Security Plan for Nuclear Power Reactors,\" outlines a comprehensive framework for cybersecurity in the nuclear power industry. Drafted with input from the U.S. NRC , this guideline is instrumental in aiding licensees to comply with Title 10, Part 73, Section 73.54 (10 CFR 73.54) of the Code of Federal Regulations (CFR) , which mandates robust protection of digital computers and equipment and communications systems at nuclear power plants against cyber threats. NEI 08-09 provides a structured approach to cybersecurity, encompassing aspects such as the creation of a cyber security plan, implementation of technical and management security controls, and integration of these plans into the overall physical protection programs (e.g., Physical Security Programs and other general Nuclear Security Programs in place) at nuclear facilities. It emphasizes a defense-in-depth strategy, employing layered security measures to safeguard critical digital assets (CDAs) (i.e., critical assets, business-critical assets, safety-critical assets) from cyber attacks, thereby ensuring the safety and integrity of nuclear power operations. Refer to NEI 08-09 for more details.",
"title": "NEI 08-09: Cybersecurity Plan for Nuclear Power Plants"
},
{
"paragraph_id": 159,
"text": "There is growing concern that cyberspace will become the next theater of warfare. As Mark Clayton from The Christian Science Monitor wrote in a 2015 article titled \"The New Cyber Arms Race\":",
"title": "Modern warfare"
},
{
"paragraph_id": 160,
"text": "In the future, wars will not just be fought by soldiers with guns or with planes that drop bombs. They will also be fought with the click of a mouse a half a world away that unleashes carefully weaponized computer programs that disrupt or destroy critical industries like utilities, transportation, communications, and energy. Such attacks could also disable military networks that control the movement of troops, the path of jet fighters, the command and control of warships.",
"title": "Modern warfare"
},
{
"paragraph_id": 161,
"text": "This has led to new terms such as cyberwarfare and cyberterrorism. The United States Cyber Command was created in 2009 and many other countries have similar forces.",
"title": "Modern warfare"
},
{
"paragraph_id": 162,
"text": "There are a few critical voices that question whether cybersecurity is as significant a threat as it is made out to be.",
"title": "Modern warfare"
},
{
"paragraph_id": 163,
"text": "Cybersecurity is a fast-growing field of IT concerned with reducing organizations' risk of hack or data breaches. According to research from the Enterprise Strategy Group, 46% of organizations say that they have a \"problematic shortage\" of cybersecurity skills in 2016, up from 28% in 2015. Commercial, government and non-governmental organizations all employ cybersecurity professionals. The fastest increases in demand for cybersecurity workers are in industries managing increasing volumes of consumer data such as finance, health care, and retail. However, the use of the term cybersecurity is more prevalent in government job descriptions.",
"title": "Careers"
},
{
"paragraph_id": 164,
"text": "Typical cybersecurity job titles and descriptions include:",
"title": "Careers"
},
{
"paragraph_id": 165,
"text": "Student programs are also available for people interested in beginning a career in cybersecurity. Meanwhile, a flexible and effective option for information security professionals of all experience levels to keep studying is online security training, including webcasts. A wide range of certified courses are also available.",
"title": "Careers"
},
{
"paragraph_id": 166,
"text": "In the United Kingdom, a nationwide set of cybersecurity forums, known as the U.K Cyber Security Forum, were established supported by the Government's cybersecurity strategy in order to encourage start-ups and innovation and to address the skills gap identified by the U.K Government.",
"title": "Careers"
},
{
"paragraph_id": 167,
"text": "In Singapore, the Cyber Security Agency has issued a Singapore Operational Technology (OT) Cybersecurity Competency Framework (OTCCF). The framework defines emerging cybersecurity roles in Operational Technology. The OTCCF was endorsed by the Infocomm Media Development Authority (IMDA). It outlines the different OT cybersecurity job positions as well as the technical skills and core competencies necessary. It also depicts the many career paths available, including vertical and lateral advancement opportunities.",
"title": "Careers"
},
{
"paragraph_id": 168,
"text": "The following terms used with regards to computer security are explained below:",
"title": "Terminology"
},
{
"paragraph_id": 169,
"text": "Since the Internet's arrival and with the digital transformation initiated in recent years, the notion of cybersecurity has become a familiar subject in both our professional and personal lives. Cybersecurity and cyber threats have been consistently present for the last 60 years of technological change. In the 1970s and 1980s, computer security was mainly limited to academia until the conception of the Internet, where, with increased connectivity, computer viruses and network intrusions began to take off. After the spread of viruses in the 1990s, the 2000s marked the institutionalization of organized attacks such as distributed denial of service. This led to the formalization of cybersecurity as a professional discipline.",
"title": "History"
},
{
"paragraph_id": 170,
"text": "The April 1967 session organized by Willis Ware at the Spring Joint Computer Conference, and the later publication of the Ware Report, were foundational moments in the history of the field of computer security. Ware's work straddled the intersection of material, cultural, political, and social concerns.",
"title": "History"
},
{
"paragraph_id": 171,
"text": "A 1977 NIST publication introduced the CIA triad of confidentiality, integrity, and availability as a clear and simple way to describe key security goals. While still relevant, many more elaborate frameworks have since been proposed.",
"title": "History"
},
{
"paragraph_id": 172,
"text": "However, in the 1970s and 1980s, there were no grave computer threats because computers and the internet were still developing, and security threats were easily identifiable. More often, threats came from malicious insiders who gained unauthorized access to sensitive documents and files. Although malware and network breaches existed during the early years, they did not use them for financial gain. By the second half of the 1970s, established computer firms like IBM started offering commercial access control systems and computer security software products.",
"title": "History"
},
{
"paragraph_id": 173,
"text": "One of the earliest examples of an attack on a computer network was the computer worm Creeper written by Bob Thomas at BBN, which propagated through the ARPANET in 1971. The program was purely experimental in nature and carried no malicious payload. A later program, Reaper, was created by Ray Tomlinson in 1972 and used to destroy Creeper.",
"title": "History"
},
{
"paragraph_id": 174,
"text": "Between September 1986 and June 1987, a group of German hackers performed the first documented case of cyber espionage. The group hacked into American defense contractors, universities, and military base networks and sold gathered information to the Soviet KGB. The group was led by Markus Hess, who was arrested on 29 June 1987. He was convicted of espionage (along with two co-conspirators) on 15 Feb 1990.",
"title": "History"
},
{
"paragraph_id": 175,
"text": "In 1988, one of the first computer worms, called the Morris worm, was distributed via the Internet. It gained significant mainstream media attention.",
"title": "History"
},
{
"paragraph_id": 176,
"text": "In 1993, Netscape started developing the protocol SSL, shortly after the National Center for Supercomputing Applications (NCSA) launched Mosaic 1.0, the first web browser, in 1993. Netscape had SSL version 1.0 ready in 1994, but it was never released to the public due to many serious security vulnerabilities. These weaknesses included replay attacks and a vulnerability that allowed hackers to alter unencrypted communications sent by users. However, in February 1995, Netscape launched Version 2.0.",
"title": "History"
},
{
"paragraph_id": 177,
"text": "The National Security Agency (NSA) is responsible for the protection of U.S. information systems and also for collecting foreign intelligence. The agency analyzes commonly used software and system configurations to find security flaws, which it can use for offensive purposes against competitors of the United States.",
"title": "History"
},
{
"paragraph_id": 178,
"text": "NSA contractors created and sold click-and-shoot attack tools to US agencies and close allies, but eventually, the tools made their way to foreign adversaries. In 2016, NSAs own hacking tools were hacked, and they have been used by Russia and North Korea. NSA's employees and contractors have been recruited at high salaries by adversaries, anxious to compete in cyberwarfare. In 2007, the United States and Israel began exploiting security flaws in the Microsoft Windows operating system to attack and damage equipment used in Iran to refine nuclear materials. Iran responded by heavily investing in their own cyberwarfare capability, which it began using against the United States.",
"title": "History"
}
] | Computer security, cybersecurity, digital security or information technology security is the protection of computer systems and networks from attacks by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide. The field is significant due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi. Also, due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, elections, and finance. | 2001-11-05T23:06:35Z | 2023-12-31T13:20:00Z | [
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] | https://en.wikipedia.org/wiki/Computer_security |
7,400 | Chris Cunningham | Chris Cunningham (born 15 October 1970) is a British video artist and music video director who directed music videos for electronic musicians such as Autechre, Squarepusher, and Aphex Twin on videos for "Windowlicker" and "Come to Daddy", and Björk's "All is Full of Love". All were used in Chris' chapter in Director's Label.
He has also created art installations and directed short movies. He was approached to direct a movie version of William Gibson's cyberpunk novel Neuromancer; the project has been in development hell for more than two decades. In the 2000s, Cunningham began doing music production work, and has also designed album artwork for a variety of musicians.
After seeing Cunningham's work on the 1995 film version of Judge Dredd, Stanley Kubrick head-hunted Cunningham to design and supervise animatronic tests of the central robot child character in his version of the film A.I. Artificial Intelligence. Cunningham worked for over a year on the film before leaving to pursue a career as a director.
Earlier work in film included model-making, prosthetic make-up and concept illustrations for Hardware and Dust Devil for director Richard Stanley, work on Nightbreed for Clive Barker, and on Alien for David Fincher. Between 1990 and 1992, he contributed the occasional cover painting and strip to Judge Dredd Megazine, working under the pseudonym "Chris Halls"; Halls is his stepfather's surname.
Cunningham has had close ties to Warp Records since his first video for Autechre, "Second Bad Vilbel", which received airplay on MTV's Amp. Videos for Aphex Twin's "Come to Daddy" and "Windowlicker" are perhaps his best known. His video for Björk's "All Is Full of Love" won multiple awards, including an MTV music video award for Breakthrough Video and was nominated for a Grammy for Best Short Form Music Video. It was also the first ever music video to win a Gold Pencil at the D&AD Awards. It can still be seen at the Museum of Modern Art in New York. His video for Aphex Twin's "Windowlicker" was nominated for the "Best Video" award at the Brit Awards 2000. He also directed Madonna's "Frozen" video which became an international hit and won the award for Best Special Effects at the 1998 MTV Music Video Awards. Cunningham also came out of a seven-year hiatus from making music videos to direct the video for "Sheena Is a Parasite" by the Horrors.
His video installation Flex was first shown in 2000 at the Royal Academy of Arts, and subsequently at the Anthony d'Offay Gallery and other art galleries. Flex was commissioned by the Anthony d'Offay Gallery for the Apocalypse: Beauty & Horror in Contemporary Art exhibition curated by Norman Rosenthal and Max Wigram at the Royal Academy of Arts in 2000.
The Anthony d'Offay Gallery also commissioned Monkey Drummer, a 2½ minute piece intended for exhibition as a companion to Flex at the 2000 Apocalypse exhibition at the Royal Academy of Arts: however, the piece was not finished in time. In it an automaton with nine appendages and the head of a monkey plays the drums to "Mt Saint Michel + Saint Michaels Mount", the 10th track on Aphex Twin's 2001 album drukqs. Monkey Drummer debuted as part of Cunningham's installation at the 49th International Exhibition of Art at the 2001 Venice Biennale, which consisted of a loop of Monkey Drummer, Flex, and his video for Björk's "All Is Full of Love". In 2002 both Flex and Monkey Drummer were exhibited by 5th Gallery in Dublin, Ireland, in an exhibition curated by Artist/Curator Paul Murnaghan,
In 2007, an excerpt from Flex was shown in the Barbican's exhibition Seduced: Art and Sex from Antiquity to Now curated by Martin Kemp, Marina Wallace and Joanne Bernstein. alongside other pieces by Bacon, Klimt, Rembrandt, Rodin and Picasso.
In 2005, Cunningham released the short film Rubber Johnny as a DVD accompanied by a book of photographs and drawings. Rubber Johnny, a six-minute experimental short film cut to a soundtrack by Aphex Twin remixed by Cunningham, was shot between 2001 and 2004. Shot on DV night-vision, it was made in Cunningham's own time as a home movie of sorts, and took three and half years of weekends to complete. The Telegraph called it "like a Looney Tunes short for a generation raised on video nasties and rave music".
During this period Cunningham also made another short film for Warp Films, Spectral Musicians, which remains unreleased. The short film was set to Squarepusher's "My Fucking Sound" from his album Go Plastic; and to a piece called "Mutilation Colony" which was written especially for the short, and was released on the studio album Do You Know Squarepusher.
Cunningham has directed a handful of commercials for companies and brands, including Gucci, Sony (PlayStation), Levi's, Telecom Italia, Nissan, and Orange.
In 2004/2005, Cunningham took a sabbatical from filmmaking to learn about music production and recording and to develop his own music projects. In December 2007 Cunningham produced two tracks, "Three Decades" and "Primary Colours", for Primary Colours, the second album by the Horrors. In the summer of 2008, due to scheduling conflicts with his feature film script writing he could not work on the rest of the album which was subsequently recorded by Geoff Barrow from Portishead.
In 2008, he produced and arranged a new version of 'I Feel Love' for the Gucci commercial that he also directed. He travelled to Nashville to work with Donna Summer to record a brand new vocal for it.
In 2005, Cunningham played a 45-minute audio visual piece performed live in Tokyo and Osaka in front of 30,000+ fans over the two nights at the Japanese electronic music festival Electraglide [ja]. These performances evolved into Chris Cunningham Live, a 55-minute long performance piece combining original and remixed music and film. It features remixed, unreleased and brand new videos and music dynamically edited together into a new live piece spread over three screens. The sound accompanying these images includes Cunningham's first publicly performed compositions interspersed with his remixes of other artist's work. Chris Cunningham Live debuted as one of the headline attractions at Warp 20 in Paris on 8 May 2009 with other performances scheduled at festivals in UK, and a number of European cities later in the year. Chris Cunningham Live continued in June 2011, with performances in London, Barcelona, and Sydney, Australia.
Cunningham has created photography and cover artwork for various people including Björk's "All Is Full of Love", Aphex Twin's "Windowlicker" and "Come to Daddy".
In 2008, Cunningham produced a fashion shoot for Dazed & Confused using Grace Jones as a model to create "Nubian versions" of Rubber Johnny. In an interview for BBC's "The Culture Show", it was suggested that the collaboration may expand into a video project. In regards to the collaboration, Cunningham stated "For me, Grace has the strongest iconography of any artist in music. She’s definitely the most inspiring person I’ve worked with so far".
In November 2008, Cunningham followed on with another photoshoot for Vice Magazine.
In an August 1999 Spike Magazine interview, cyberpunk author William Gibson stated "He (Chris) was brought to my attention by someone else. We were told, third-hand, that he was extremely wary of the Hollywood process, and wouldn't return calls. But someone else told us that Neuromancer had been his The Wind in the Willows, that he'd read it when he was a kid. I went to London and we met." Gibson is also quoted in the article as saying "Chris is my own 100 percent personal choice...My only choice. The only person I've met who I thought might have a hope in hell of doing it right. I went back to see him in London just after he'd finished the Bjork video, and I sat on a couch beside this dead sex little Bjork robot, except it was wearing Aphex Twin's head. We talked."
In 2000, Cunningham and William Gibson began work on the script for Gibson's 1984 novel Neuromancer. However, because Neuromancer was due to be a big budget studio film, it is rumoured that Cunningham pulled out due to being a first time director without final cut approval. He also felt that too much of the original book's ideas had been cannibalised by other recent films.
On 18 November 2004, in the FAQ on the William Gibson Board, Gibson was asked:
Q: Is it true there's a movie of Neuromancer in the works? A: Perpetually, it seems, and going on a quarter of a century now. The most recently rumoured version, to have been directed by Chris Cunningham, is now definitely not happening.
Cunningham was married to Warpaint's bassist Jenny Lee Lindberg. They are currently no longer together.
The video collection The Work of Director Chris Cunningham was released in November 2004 as part of the Directors Label set. This DVD includes selected highlights from 1995 to 2000. | [
{
"paragraph_id": 0,
"text": "Chris Cunningham (born 15 October 1970) is a British video artist and music video director who directed music videos for electronic musicians such as Autechre, Squarepusher, and Aphex Twin on videos for \"Windowlicker\" and \"Come to Daddy\", and Björk's \"All is Full of Love\". All were used in Chris' chapter in Director's Label.",
"title": ""
},
{
"paragraph_id": 1,
"text": "He has also created art installations and directed short movies. He was approached to direct a movie version of William Gibson's cyberpunk novel Neuromancer; the project has been in development hell for more than two decades. In the 2000s, Cunningham began doing music production work, and has also designed album artwork for a variety of musicians.",
"title": ""
},
{
"paragraph_id": 2,
"text": "After seeing Cunningham's work on the 1995 film version of Judge Dredd, Stanley Kubrick head-hunted Cunningham to design and supervise animatronic tests of the central robot child character in his version of the film A.I. Artificial Intelligence. Cunningham worked for over a year on the film before leaving to pursue a career as a director.",
"title": "Early work"
},
{
"paragraph_id": 3,
"text": "Earlier work in film included model-making, prosthetic make-up and concept illustrations for Hardware and Dust Devil for director Richard Stanley, work on Nightbreed for Clive Barker, and on Alien for David Fincher. Between 1990 and 1992, he contributed the occasional cover painting and strip to Judge Dredd Megazine, working under the pseudonym \"Chris Halls\"; Halls is his stepfather's surname.",
"title": "Early work"
},
{
"paragraph_id": 4,
"text": "Cunningham has had close ties to Warp Records since his first video for Autechre, \"Second Bad Vilbel\", which received airplay on MTV's Amp. Videos for Aphex Twin's \"Come to Daddy\" and \"Windowlicker\" are perhaps his best known. His video for Björk's \"All Is Full of Love\" won multiple awards, including an MTV music video award for Breakthrough Video and was nominated for a Grammy for Best Short Form Music Video. It was also the first ever music video to win a Gold Pencil at the D&AD Awards. It can still be seen at the Museum of Modern Art in New York. His video for Aphex Twin's \"Windowlicker\" was nominated for the \"Best Video\" award at the Brit Awards 2000. He also directed Madonna's \"Frozen\" video which became an international hit and won the award for Best Special Effects at the 1998 MTV Music Video Awards. Cunningham also came out of a seven-year hiatus from making music videos to direct the video for \"Sheena Is a Parasite\" by the Horrors.",
"title": "Music videos"
},
{
"paragraph_id": 5,
"text": "His video installation Flex was first shown in 2000 at the Royal Academy of Arts, and subsequently at the Anthony d'Offay Gallery and other art galleries. Flex was commissioned by the Anthony d'Offay Gallery for the Apocalypse: Beauty & Horror in Contemporary Art exhibition curated by Norman Rosenthal and Max Wigram at the Royal Academy of Arts in 2000.",
"title": "Video art"
},
{
"paragraph_id": 6,
"text": "The Anthony d'Offay Gallery also commissioned Monkey Drummer, a 2½ minute piece intended for exhibition as a companion to Flex at the 2000 Apocalypse exhibition at the Royal Academy of Arts: however, the piece was not finished in time. In it an automaton with nine appendages and the head of a monkey plays the drums to \"Mt Saint Michel + Saint Michaels Mount\", the 10th track on Aphex Twin's 2001 album drukqs. Monkey Drummer debuted as part of Cunningham's installation at the 49th International Exhibition of Art at the 2001 Venice Biennale, which consisted of a loop of Monkey Drummer, Flex, and his video for Björk's \"All Is Full of Love\". In 2002 both Flex and Monkey Drummer were exhibited by 5th Gallery in Dublin, Ireland, in an exhibition curated by Artist/Curator Paul Murnaghan,",
"title": "Video art"
},
{
"paragraph_id": 7,
"text": "In 2007, an excerpt from Flex was shown in the Barbican's exhibition Seduced: Art and Sex from Antiquity to Now curated by Martin Kemp, Marina Wallace and Joanne Bernstein. alongside other pieces by Bacon, Klimt, Rembrandt, Rodin and Picasso.",
"title": "Video art"
},
{
"paragraph_id": 8,
"text": "In 2005, Cunningham released the short film Rubber Johnny as a DVD accompanied by a book of photographs and drawings. Rubber Johnny, a six-minute experimental short film cut to a soundtrack by Aphex Twin remixed by Cunningham, was shot between 2001 and 2004. Shot on DV night-vision, it was made in Cunningham's own time as a home movie of sorts, and took three and half years of weekends to complete. The Telegraph called it \"like a Looney Tunes short for a generation raised on video nasties and rave music\".",
"title": "Short films"
},
{
"paragraph_id": 9,
"text": "During this period Cunningham also made another short film for Warp Films, Spectral Musicians, which remains unreleased. The short film was set to Squarepusher's \"My Fucking Sound\" from his album Go Plastic; and to a piece called \"Mutilation Colony\" which was written especially for the short, and was released on the studio album Do You Know Squarepusher.",
"title": "Short films"
},
{
"paragraph_id": 10,
"text": "Cunningham has directed a handful of commercials for companies and brands, including Gucci, Sony (PlayStation), Levi's, Telecom Italia, Nissan, and Orange.",
"title": "Commercials"
},
{
"paragraph_id": 11,
"text": "In 2004/2005, Cunningham took a sabbatical from filmmaking to learn about music production and recording and to develop his own music projects. In December 2007 Cunningham produced two tracks, \"Three Decades\" and \"Primary Colours\", for Primary Colours, the second album by the Horrors. In the summer of 2008, due to scheduling conflicts with his feature film script writing he could not work on the rest of the album which was subsequently recorded by Geoff Barrow from Portishead.",
"title": "Music production"
},
{
"paragraph_id": 12,
"text": "In 2008, he produced and arranged a new version of 'I Feel Love' for the Gucci commercial that he also directed. He travelled to Nashville to work with Donna Summer to record a brand new vocal for it.",
"title": "Music production"
},
{
"paragraph_id": 13,
"text": "In 2005, Cunningham played a 45-minute audio visual piece performed live in Tokyo and Osaka in front of 30,000+ fans over the two nights at the Japanese electronic music festival Electraglide [ja]. These performances evolved into Chris Cunningham Live, a 55-minute long performance piece combining original and remixed music and film. It features remixed, unreleased and brand new videos and music dynamically edited together into a new live piece spread over three screens. The sound accompanying these images includes Cunningham's first publicly performed compositions interspersed with his remixes of other artist's work. Chris Cunningham Live debuted as one of the headline attractions at Warp 20 in Paris on 8 May 2009 with other performances scheduled at festivals in UK, and a number of European cities later in the year. Chris Cunningham Live continued in June 2011, with performances in London, Barcelona, and Sydney, Australia.",
"title": "Chris Cunningham Live"
},
{
"paragraph_id": 14,
"text": "Cunningham has created photography and cover artwork for various people including Björk's \"All Is Full of Love\", Aphex Twin's \"Windowlicker\" and \"Come to Daddy\".",
"title": "Photography"
},
{
"paragraph_id": 15,
"text": "In 2008, Cunningham produced a fashion shoot for Dazed & Confused using Grace Jones as a model to create \"Nubian versions\" of Rubber Johnny. In an interview for BBC's \"The Culture Show\", it was suggested that the collaboration may expand into a video project. In regards to the collaboration, Cunningham stated \"For me, Grace has the strongest iconography of any artist in music. She’s definitely the most inspiring person I’ve worked with so far\".",
"title": "Photography"
},
{
"paragraph_id": 16,
"text": "In November 2008, Cunningham followed on with another photoshoot for Vice Magazine.",
"title": "Photography"
},
{
"paragraph_id": 17,
"text": "In an August 1999 Spike Magazine interview, cyberpunk author William Gibson stated \"He (Chris) was brought to my attention by someone else. We were told, third-hand, that he was extremely wary of the Hollywood process, and wouldn't return calls. But someone else told us that Neuromancer had been his The Wind in the Willows, that he'd read it when he was a kid. I went to London and we met.\" Gibson is also quoted in the article as saying \"Chris is my own 100 percent personal choice...My only choice. The only person I've met who I thought might have a hope in hell of doing it right. I went back to see him in London just after he'd finished the Bjork video, and I sat on a couch beside this dead sex little Bjork robot, except it was wearing Aphex Twin's head. We talked.\"",
"title": "Neuromancer"
},
{
"paragraph_id": 18,
"text": "In 2000, Cunningham and William Gibson began work on the script for Gibson's 1984 novel Neuromancer. However, because Neuromancer was due to be a big budget studio film, it is rumoured that Cunningham pulled out due to being a first time director without final cut approval. He also felt that too much of the original book's ideas had been cannibalised by other recent films.",
"title": "Neuromancer"
},
{
"paragraph_id": 19,
"text": "On 18 November 2004, in the FAQ on the William Gibson Board, Gibson was asked:",
"title": "Neuromancer"
},
{
"paragraph_id": 20,
"text": "Q: Is it true there's a movie of Neuromancer in the works? A: Perpetually, it seems, and going on a quarter of a century now. The most recently rumoured version, to have been directed by Chris Cunningham, is now definitely not happening.",
"title": "Neuromancer"
},
{
"paragraph_id": 21,
"text": "Cunningham was married to Warpaint's bassist Jenny Lee Lindberg. They are currently no longer together.",
"title": "Personal life"
},
{
"paragraph_id": 22,
"text": "The video collection The Work of Director Chris Cunningham was released in November 2004 as part of the Directors Label set. This DVD includes selected highlights from 1995 to 2000.",
"title": "Videography"
}
] | Chris Cunningham is a British video artist and music video director who directed music videos for electronic musicians such as Autechre, Squarepusher, and Aphex Twin on videos for "Windowlicker" and "Come to Daddy", and Björk's "All is Full of Love". All were used in Chris' chapter in Director's Label. He has also created art installations and directed short movies. He was approached to direct a movie version of William Gibson's cyberpunk novel Neuromancer; the project has been in development hell for more than two decades. In the 2000s, Cunningham began doing music production work, and has also designed album artwork for a variety of musicians. | 2002-02-25T15:51:15Z | 2023-10-19T22:32:03Z | [
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7,401 | Centaur | A centaur (/ˈsɛntɔːr, ˈsɛntɑːr/ SEN-tor, SEN-tar; Ancient Greek: κένταυρος, romanized: kéntauros; Latin: centaurus), occasionally hippocentaur, also called Ixionidae (Ancient Greek: Ιξιονίδαι, romanized: Ixionidai, "sons of Ixion"), is a creature from Greek mythology with the upper body of a human and the lower body and legs of a horse that was said to live in the mountains of Thessaly. In one version of the myth, the centaurs were named after Centaurus, and, through his brother Lapithes, were kin to the legendary tribe of the Lapiths.
Centaurs are thought of in many Greek myths as being as wild as untamed horses, and were said to have inhabited the region of Magnesia and Mount Pelion in Thessaly, the Foloi oak forest in Elis, and the Malean peninsula in southern Laconia. Centaurs are subsequently featured in Roman mythology, and were familiar figures in the medieval bestiary. They remain a staple of modern fantastic literature.
The Greek word kentauros is generally regarded as being of obscure origin. The etymology from ken + tauros, 'piercing bull', was a euhemerist suggestion in Palaephatus' rationalizing text on Greek mythology, On Incredible Tales (Περὶ ἀπίστων), which included mounted archers from a village called Nephele eliminating a herd of bulls that were the scourge of Ixion's kingdom. Another possible related etymology can be "bull-slayer".
The centaurs were usually said to have been born of Ixion and Nephele. As the story goes, Nephele was a cloud made into the likeness of Hera in a plot to trick Ixion into revealing his lust for Hera to Zeus. Ixion seduced Nephele and from that relationship centaurs were created. Another version, however, makes them children of Centaurus, a man who mated with the Magnesian mares. Centaurus was either himself the son of Ixion and Nephele (inserting an additional generation) or of Apollo and the nymph Stilbe. In the latter version of the story, Centaurus's twin brother was Lapithes, ancestor of the Lapiths.
Another tribe of centaurs was said to have lived on Cyprus. According to Nonnus, they were fathered by Zeus, who, in frustration after Aphrodite had eluded him, spilled his seed on the ground of that land. Unlike those of mainland Greece, the Cyprian centaurs were horned.
There were also the Lamian Pheres, twelve rustic daimones (spirits) of the Lamos river. They were set by Zeus to guard the infant Dionysos, protecting him from the machinations of Hera, but the enraged goddess transformed them into ox-horned Centaurs. The Lamian Pheres later accompanied Dionysos in his campaign against the Indians.
The centaur's half-human, half-horse composition has led many writers to treat them as liminal beings, caught between the two natures they embody in contrasting myths; they are both the embodiment of untamed nature, as in their battle with the Lapiths (their kin), and conversely, teachers like Chiron.
The Centaurs are best known for their fight with the Lapiths who, according to one origin myth, would have been cousins to the centaurs. The battle, called the Centauromachy, was caused by the centaurs' attempt to carry off Hippodamia and the rest of the Lapith women on the day of Hippodamia's marriage to Pirithous, who was the king of the Lapithae and a son of Ixion. Theseus, a hero and founder of cities, who happened to be present, threw the balance in favour of the Lapiths by assisting Pirithous in the battle. The Centaurs were driven off or destroyed. Another Lapith hero, Caeneus, who was invulnerable to weapons, was beaten into the earth by Centaurs wielding rocks and the branches of trees. In her article "The Centaur: Its History and Meaning in Human Culture," Elizabeth Lawrence claims that the contests between the centaurs and the Lapiths typify the struggle between civilization and barbarism.
The Centauromachy is most famously portrayed in the Parthenon metopes by Phidias and in a Renaissance-era sculpture by Michelangelo.
The most common theory holds that the idea of centaurs came from the first reaction of a non-riding culture, as in the Minoan Aegean world, to nomads who were mounted on horses. The theory suggests that such riders would appear as half-man, half-animal. Bernal Díaz del Castillo reported that the Aztecs also had this misapprehension about Spanish cavalrymen. The Lapith tribe of Thessaly, who were the kinsmen of the Centaurs in myth, were described as the inventors of horse-riding by Greek writers. The Thessalian tribes also claimed their horse breeds were descended from the centaurs.
Robert Graves (relying on the work of Georges Dumézil, who argued for tracing the centaurs back to the Indian Gandharva), speculated that the centaurs were a dimly remembered, pre-Hellenic fraternal earth cult who had the horse as a totem. A similar theory was incorporated into Mary Renault's The Bull from the Sea.
Though female centaurs, called centaurides or centauresses, are not mentioned in early Greek literature and art, they do appear occasionally in later antiquity. A Macedonian mosaic of the 4th century BC is one of the earliest examples of the centauress in art. Ovid also mentions a centauress named Hylonome who committed suicide when her husband Cyllarus was killed in the war with the Lapiths.
The Kalibangan cylinder seal, dated to be around 2600-1900 BC, found at the site of Indus-Valley civilization shows a battle between men in the presence of centaur-like creatures. Other sources claim the creatures represented are actually half human and half tigers, later evolving into the Hindu Goddess of War. These seals are also evidence of Indus-Mesopotamia relations in the 3rd millennium BC.
In a popular legend associated with Pazhaya Sreekanteswaram Temple in Thiruvananthapuram, the curse of a saintly Brahmin transformed a handsome Yadava prince into a creature having a horse's body and the prince's head, arms, and torso in place of the head and neck of the horse.
Kinnaras, another half-man, half-horse mythical creature from Indian mythology, appeared in various ancient texts, arts, and sculptures from all around India. It is shown as a horse with the torso of a man where the horse's head would be, and is similar to a Greek centaur.
A centaur-like half-human, half-equine creature called Polkan appeared in Russian folk art and lubok prints of the 17th–19th centuries. Polkan is originally based on Pulicane, a half-dog from Andrea da Barberino's poem I Reali di Francia, which was once popular in the Slavonic world in prosaic translations.
The extensive Mycenaean pottery found at Ugarit included two fragmentary Mycenaean terracotta figures which have been tentatively identified as centaurs. This finding suggests a Bronze Age origin for these creatures of myth. A painted terracotta centaur was found in the "Hero's tomb" at Lefkandi, and by the Geometric period, centaurs figure among the first representational figures painted on Greek pottery. An often-published Geometric period bronze of a warrior face-to-face with a centaur is at the Metropolitan Museum of Art.
In Greek art of the Archaic period, centaurs are depicted in three different forms. Some centaurs are depicted with a human torso attached to the body of a horse at the withers, where the horse's neck would be; this form, designated "Class A" by Professor Paul Baur, later became standard. "Class B" centaurs are depicted with a human body and legs joined at the waist to the hindquarters of a horse; in some cases centaurs of both Class A and Class B appear together. A third type, designated "Class C", depicts centaurs with human forelegs terminating in hooves. Baur describes this as an apparent development of Aeolic art, which never became particularly widespread. At a later period, paintings on some amphorae depict winged centaurs.
Centaurs were also frequently depicted in Roman art. One example is the pair of centaurs drawing the chariot of Constantine the Great and his family in the Great Cameo of Constantine (circa AD 314–16), which embodies wholly pagan imagery, and contrasts sharply with the popular image of Constantine as the patron of early Christianity.
Centaurs preserved a Dionysian connection in the 12th-century Romanesque carved capitals of Mozac Abbey in the Auvergne. Other similar capitals depict harvesters, boys riding goats (a further Dionysiac theme), and griffins guarding the chalice that held the wine. Centaurs are also shown on a number of Pictish carved stones from north-east Scotland erected in the 8th–9th centuries AD (e.g., at Meigle, Perthshire). Though outside the limits of the Roman Empire, these depictions appear to be derived from Classical prototypes.
The John C. Hodges library at The University of Tennessee hosts a permanent exhibit of a "Centaur from Volos" in its library. The exhibit, made by sculptor Bill Willers by combining a study human skeleton with the skeleton of a Shetland pony, is entitled "Do you believe in Centaurs?". According to the exhibitors, it was meant to mislead students in order to make them more critically aware.
Centaurs are common in European heraldry, although more frequent in continental than in British arms. A centaur holding a bow is referred to as a sagittarius.
Jerome's version of the Life of St Anthony the Great, written by Athanasius of Alexandria about the hermit monk of Egypt, was widely disseminated in the Middle Ages; it relates Anthony's encounter with a centaur who challenged the saint, but was forced to admit that the old gods had been overthrown. The episode was often depicted in The Meeting of St Anthony Abbot and St Paul the Hermit by the painter Stefano di Giovanni, who was known as "Sassetta". Of the two episodic depictions of the hermit Anthony's travel to greet the hermit Paul, one is his encounter with the demonic figure of a centaur along the pathway in a wood.
Lucretius, in his first-century BC philosophical poem On the Nature of Things, denied the existence of centaurs, based on the differing rates of growth of human and equine anatomies. Specifically, he states that at the age of three years, horses are in the prime of their life while humans at the same age are still little more than babies, making hybrid animals impossible.
Centaurs are among the creatures which 14th-century Italian poet Dante placed as guardians in his Inferno. In Canto XII, Dante and his guide Virgil meet a band led by Chiron and Pholus, guarding the bank of Phlegethon in the seventh circle of Hell, a river of boiling blood in which the violent against their neighbours are immersed, shooting arrows into any who move to a shallower spot than their allotted station. The two poets are treated with courtesy, and Nessus guides them to a ford. In Canto XXIV, in the eighth circle, in Bolgia 7, a ditch where thieves are confined, they meet but do not converse with Cacus (who is a giant in the ancient sources), wreathed in serpents and with a fire-breathing dragon on his shoulders, arriving to punish a sinner who has just cursed God. In his Purgatorio, an unseen spirit on the sixth terrace cites the centaurs ("the drunken double-breasted ones who fought Theseus") as examples of the sin of gluttony.
C.S. Lewis' The Chronicles of Narnia series depicts centaurs as the wisest and noblest of creatures. Narnian Centaurs are gifted at stargazing, prophecy, healing, and warfare; a fierce and valiant race always faithful to the High King Aslan the Lion.
In J.K. Rowling's Harry Potter series, centaurs live in the Forbidden Forest close to Hogwarts, preferring to avoid contact with humans. They live in societies called herds and are skilled at archery, healing, and astrology, but like in the original myths, they are known to have some wild and barbarous tendencies.
With the exception of Chiron, the centaurs in Rick Riordan's Percy Jackson & the Olympians are seen as wild party-goers who use a lot of American slang. Chiron retains his mythological role as a trainer of heroes and is skilled in archery. In Riordan's subsequent series, Heroes of Olympus, another group of centaurs are depicted with more animalistic features (such as horns) and appear as villains, serving the Gigantes.
Philip Jose Farmer's World of Tiers series (1965) includes centaurs, called Half-Horses or Hoi Kentauroi. His creations address several of the metabolic problems of such creatures—how could the human mouth and nose intake sufficient air to sustain both itself and the horse body and, similarly, how could the human ingest sufficient food to sustain both parts.
Brandon Mull's Fablehaven series features centaurs that live in an area called Grunhold. The centaurs are portrayed as a proud, elitist group of beings that consider themselves superior to all other creatures. The fourth book also has a variation on the species called an Alcetaur, which is part man, part moose.
The myth of the centaur appears in John Updike's novel The Centaur. The author depicts a rural Pennsylvanian town as seen through the optics of the myth of the centaur. An unknown and marginalized local school teacher, just like the mythological Chiron did for Prometheus, gave up his life for the future of his son who had chosen to be an independent artist in New York.
Other hybrid creatures appear in Greek mythology, always with some liminal connection that links Hellenic culture with archaic or non-Hellenic cultures:
Also,
Additionally, Bucentaur, the name of several historically important Venetian vessels, was linked to a posited ox-centaur or βουκένταυρος (boukentauros) by fanciful and likely spurious folk-etymology. | [
{
"paragraph_id": 0,
"text": "A centaur (/ˈsɛntɔːr, ˈsɛntɑːr/ SEN-tor, SEN-tar; Ancient Greek: κένταυρος, romanized: kéntauros; Latin: centaurus), occasionally hippocentaur, also called Ixionidae (Ancient Greek: Ιξιονίδαι, romanized: Ixionidai, \"sons of Ixion\"), is a creature from Greek mythology with the upper body of a human and the lower body and legs of a horse that was said to live in the mountains of Thessaly. In one version of the myth, the centaurs were named after Centaurus, and, through his brother Lapithes, were kin to the legendary tribe of the Lapiths.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Centaurs are thought of in many Greek myths as being as wild as untamed horses, and were said to have inhabited the region of Magnesia and Mount Pelion in Thessaly, the Foloi oak forest in Elis, and the Malean peninsula in southern Laconia. Centaurs are subsequently featured in Roman mythology, and were familiar figures in the medieval bestiary. They remain a staple of modern fantastic literature.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The Greek word kentauros is generally regarded as being of obscure origin. The etymology from ken + tauros, 'piercing bull', was a euhemerist suggestion in Palaephatus' rationalizing text on Greek mythology, On Incredible Tales (Περὶ ἀπίστων), which included mounted archers from a village called Nephele eliminating a herd of bulls that were the scourge of Ixion's kingdom. Another possible related etymology can be \"bull-slayer\".",
"title": "Etymology"
},
{
"paragraph_id": 3,
"text": "The centaurs were usually said to have been born of Ixion and Nephele. As the story goes, Nephele was a cloud made into the likeness of Hera in a plot to trick Ixion into revealing his lust for Hera to Zeus. Ixion seduced Nephele and from that relationship centaurs were created. Another version, however, makes them children of Centaurus, a man who mated with the Magnesian mares. Centaurus was either himself the son of Ixion and Nephele (inserting an additional generation) or of Apollo and the nymph Stilbe. In the latter version of the story, Centaurus's twin brother was Lapithes, ancestor of the Lapiths.",
"title": "Mythology"
},
{
"paragraph_id": 4,
"text": "Another tribe of centaurs was said to have lived on Cyprus. According to Nonnus, they were fathered by Zeus, who, in frustration after Aphrodite had eluded him, spilled his seed on the ground of that land. Unlike those of mainland Greece, the Cyprian centaurs were horned.",
"title": "Mythology"
},
{
"paragraph_id": 5,
"text": "There were also the Lamian Pheres, twelve rustic daimones (spirits) of the Lamos river. They were set by Zeus to guard the infant Dionysos, protecting him from the machinations of Hera, but the enraged goddess transformed them into ox-horned Centaurs. The Lamian Pheres later accompanied Dionysos in his campaign against the Indians.",
"title": "Mythology"
},
{
"paragraph_id": 6,
"text": "The centaur's half-human, half-horse composition has led many writers to treat them as liminal beings, caught between the two natures they embody in contrasting myths; they are both the embodiment of untamed nature, as in their battle with the Lapiths (their kin), and conversely, teachers like Chiron.",
"title": "Mythology"
},
{
"paragraph_id": 7,
"text": "The Centaurs are best known for their fight with the Lapiths who, according to one origin myth, would have been cousins to the centaurs. The battle, called the Centauromachy, was caused by the centaurs' attempt to carry off Hippodamia and the rest of the Lapith women on the day of Hippodamia's marriage to Pirithous, who was the king of the Lapithae and a son of Ixion. Theseus, a hero and founder of cities, who happened to be present, threw the balance in favour of the Lapiths by assisting Pirithous in the battle. The Centaurs were driven off or destroyed. Another Lapith hero, Caeneus, who was invulnerable to weapons, was beaten into the earth by Centaurs wielding rocks and the branches of trees. In her article \"The Centaur: Its History and Meaning in Human Culture,\" Elizabeth Lawrence claims that the contests between the centaurs and the Lapiths typify the struggle between civilization and barbarism.",
"title": "Mythology"
},
{
"paragraph_id": 8,
"text": "The Centauromachy is most famously portrayed in the Parthenon metopes by Phidias and in a Renaissance-era sculpture by Michelangelo.",
"title": "Mythology"
},
{
"paragraph_id": 9,
"text": "The most common theory holds that the idea of centaurs came from the first reaction of a non-riding culture, as in the Minoan Aegean world, to nomads who were mounted on horses. The theory suggests that such riders would appear as half-man, half-animal. Bernal Díaz del Castillo reported that the Aztecs also had this misapprehension about Spanish cavalrymen. The Lapith tribe of Thessaly, who were the kinsmen of the Centaurs in myth, were described as the inventors of horse-riding by Greek writers. The Thessalian tribes also claimed their horse breeds were descended from the centaurs.",
"title": "Origin of the myth"
},
{
"paragraph_id": 10,
"text": "Robert Graves (relying on the work of Georges Dumézil, who argued for tracing the centaurs back to the Indian Gandharva), speculated that the centaurs were a dimly remembered, pre-Hellenic fraternal earth cult who had the horse as a totem. A similar theory was incorporated into Mary Renault's The Bull from the Sea.",
"title": "Origin of the myth"
},
{
"paragraph_id": 11,
"text": "Though female centaurs, called centaurides or centauresses, are not mentioned in early Greek literature and art, they do appear occasionally in later antiquity. A Macedonian mosaic of the 4th century BC is one of the earliest examples of the centauress in art. Ovid also mentions a centauress named Hylonome who committed suicide when her husband Cyllarus was killed in the war with the Lapiths.",
"title": "Variations"
},
{
"paragraph_id": 12,
"text": "The Kalibangan cylinder seal, dated to be around 2600-1900 BC, found at the site of Indus-Valley civilization shows a battle between men in the presence of centaur-like creatures. Other sources claim the creatures represented are actually half human and half tigers, later evolving into the Hindu Goddess of War. These seals are also evidence of Indus-Mesopotamia relations in the 3rd millennium BC.",
"title": "Variations"
},
{
"paragraph_id": 13,
"text": "In a popular legend associated with Pazhaya Sreekanteswaram Temple in Thiruvananthapuram, the curse of a saintly Brahmin transformed a handsome Yadava prince into a creature having a horse's body and the prince's head, arms, and torso in place of the head and neck of the horse.",
"title": "Variations"
},
{
"paragraph_id": 14,
"text": "Kinnaras, another half-man, half-horse mythical creature from Indian mythology, appeared in various ancient texts, arts, and sculptures from all around India. It is shown as a horse with the torso of a man where the horse's head would be, and is similar to a Greek centaur.",
"title": "Variations"
},
{
"paragraph_id": 15,
"text": "A centaur-like half-human, half-equine creature called Polkan appeared in Russian folk art and lubok prints of the 17th–19th centuries. Polkan is originally based on Pulicane, a half-dog from Andrea da Barberino's poem I Reali di Francia, which was once popular in the Slavonic world in prosaic translations.",
"title": "Variations"
},
{
"paragraph_id": 16,
"text": "The extensive Mycenaean pottery found at Ugarit included two fragmentary Mycenaean terracotta figures which have been tentatively identified as centaurs. This finding suggests a Bronze Age origin for these creatures of myth. A painted terracotta centaur was found in the \"Hero's tomb\" at Lefkandi, and by the Geometric period, centaurs figure among the first representational figures painted on Greek pottery. An often-published Geometric period bronze of a warrior face-to-face with a centaur is at the Metropolitan Museum of Art.",
"title": "Artistic representations"
},
{
"paragraph_id": 17,
"text": "In Greek art of the Archaic period, centaurs are depicted in three different forms. Some centaurs are depicted with a human torso attached to the body of a horse at the withers, where the horse's neck would be; this form, designated \"Class A\" by Professor Paul Baur, later became standard. \"Class B\" centaurs are depicted with a human body and legs joined at the waist to the hindquarters of a horse; in some cases centaurs of both Class A and Class B appear together. A third type, designated \"Class C\", depicts centaurs with human forelegs terminating in hooves. Baur describes this as an apparent development of Aeolic art, which never became particularly widespread. At a later period, paintings on some amphorae depict winged centaurs.",
"title": "Artistic representations"
},
{
"paragraph_id": 18,
"text": "Centaurs were also frequently depicted in Roman art. One example is the pair of centaurs drawing the chariot of Constantine the Great and his family in the Great Cameo of Constantine (circa AD 314–16), which embodies wholly pagan imagery, and contrasts sharply with the popular image of Constantine as the patron of early Christianity.",
"title": "Artistic representations"
},
{
"paragraph_id": 19,
"text": "Centaurs preserved a Dionysian connection in the 12th-century Romanesque carved capitals of Mozac Abbey in the Auvergne. Other similar capitals depict harvesters, boys riding goats (a further Dionysiac theme), and griffins guarding the chalice that held the wine. Centaurs are also shown on a number of Pictish carved stones from north-east Scotland erected in the 8th–9th centuries AD (e.g., at Meigle, Perthshire). Though outside the limits of the Roman Empire, these depictions appear to be derived from Classical prototypes.",
"title": "Artistic representations"
},
{
"paragraph_id": 20,
"text": "The John C. Hodges library at The University of Tennessee hosts a permanent exhibit of a \"Centaur from Volos\" in its library. The exhibit, made by sculptor Bill Willers by combining a study human skeleton with the skeleton of a Shetland pony, is entitled \"Do you believe in Centaurs?\". According to the exhibitors, it was meant to mislead students in order to make them more critically aware.",
"title": "Artistic representations"
},
{
"paragraph_id": 21,
"text": "Centaurs are common in European heraldry, although more frequent in continental than in British arms. A centaur holding a bow is referred to as a sagittarius.",
"title": "Artistic representations"
},
{
"paragraph_id": 22,
"text": "Jerome's version of the Life of St Anthony the Great, written by Athanasius of Alexandria about the hermit monk of Egypt, was widely disseminated in the Middle Ages; it relates Anthony's encounter with a centaur who challenged the saint, but was forced to admit that the old gods had been overthrown. The episode was often depicted in The Meeting of St Anthony Abbot and St Paul the Hermit by the painter Stefano di Giovanni, who was known as \"Sassetta\". Of the two episodic depictions of the hermit Anthony's travel to greet the hermit Paul, one is his encounter with the demonic figure of a centaur along the pathway in a wood.",
"title": "Literature"
},
{
"paragraph_id": 23,
"text": "Lucretius, in his first-century BC philosophical poem On the Nature of Things, denied the existence of centaurs, based on the differing rates of growth of human and equine anatomies. Specifically, he states that at the age of three years, horses are in the prime of their life while humans at the same age are still little more than babies, making hybrid animals impossible.",
"title": "Literature"
},
{
"paragraph_id": 24,
"text": "Centaurs are among the creatures which 14th-century Italian poet Dante placed as guardians in his Inferno. In Canto XII, Dante and his guide Virgil meet a band led by Chiron and Pholus, guarding the bank of Phlegethon in the seventh circle of Hell, a river of boiling blood in which the violent against their neighbours are immersed, shooting arrows into any who move to a shallower spot than their allotted station. The two poets are treated with courtesy, and Nessus guides them to a ford. In Canto XXIV, in the eighth circle, in Bolgia 7, a ditch where thieves are confined, they meet but do not converse with Cacus (who is a giant in the ancient sources), wreathed in serpents and with a fire-breathing dragon on his shoulders, arriving to punish a sinner who has just cursed God. In his Purgatorio, an unseen spirit on the sixth terrace cites the centaurs (\"the drunken double-breasted ones who fought Theseus\") as examples of the sin of gluttony.",
"title": "Literature"
},
{
"paragraph_id": 25,
"text": "C.S. Lewis' The Chronicles of Narnia series depicts centaurs as the wisest and noblest of creatures. Narnian Centaurs are gifted at stargazing, prophecy, healing, and warfare; a fierce and valiant race always faithful to the High King Aslan the Lion.",
"title": "Literature"
},
{
"paragraph_id": 26,
"text": "In J.K. Rowling's Harry Potter series, centaurs live in the Forbidden Forest close to Hogwarts, preferring to avoid contact with humans. They live in societies called herds and are skilled at archery, healing, and astrology, but like in the original myths, they are known to have some wild and barbarous tendencies.",
"title": "Literature"
},
{
"paragraph_id": 27,
"text": "With the exception of Chiron, the centaurs in Rick Riordan's Percy Jackson & the Olympians are seen as wild party-goers who use a lot of American slang. Chiron retains his mythological role as a trainer of heroes and is skilled in archery. In Riordan's subsequent series, Heroes of Olympus, another group of centaurs are depicted with more animalistic features (such as horns) and appear as villains, serving the Gigantes.",
"title": "Literature"
},
{
"paragraph_id": 28,
"text": "Philip Jose Farmer's World of Tiers series (1965) includes centaurs, called Half-Horses or Hoi Kentauroi. His creations address several of the metabolic problems of such creatures—how could the human mouth and nose intake sufficient air to sustain both itself and the horse body and, similarly, how could the human ingest sufficient food to sustain both parts.",
"title": "Literature"
},
{
"paragraph_id": 29,
"text": "Brandon Mull's Fablehaven series features centaurs that live in an area called Grunhold. The centaurs are portrayed as a proud, elitist group of beings that consider themselves superior to all other creatures. The fourth book also has a variation on the species called an Alcetaur, which is part man, part moose.",
"title": "Literature"
},
{
"paragraph_id": 30,
"text": "The myth of the centaur appears in John Updike's novel The Centaur. The author depicts a rural Pennsylvanian town as seen through the optics of the myth of the centaur. An unknown and marginalized local school teacher, just like the mythological Chiron did for Prometheus, gave up his life for the future of his son who had chosen to be an independent artist in New York.",
"title": "Literature"
},
{
"paragraph_id": 31,
"text": "Other hybrid creatures appear in Greek mythology, always with some liminal connection that links Hellenic culture with archaic or non-Hellenic cultures:",
"title": "See also"
},
{
"paragraph_id": 32,
"text": "Also,",
"title": "See also"
},
{
"paragraph_id": 33,
"text": "Additionally, Bucentaur, the name of several historically important Venetian vessels, was linked to a posited ox-centaur or βουκένταυρος (boukentauros) by fanciful and likely spurious folk-etymology.",
"title": "See also"
}
] | A centaur, occasionally hippocentaur, also called Ixionidae, is a creature from Greek mythology with the upper body of a human and the lower body and legs of a horse that was said to live in the mountains of Thessaly. In one version of the myth, the centaurs were named after Centaurus, and, through his brother Lapithes, were kin to the legendary tribe of the Lapiths. Centaurs are thought of in many Greek myths as being as wild as untamed horses, and were said to have inhabited the region of Magnesia and Mount Pelion in Thessaly, the Foloi oak forest in Elis, and the Malean peninsula in southern Laconia. Centaurs are subsequently featured in Roman mythology, and were familiar figures in the medieval bestiary. They remain a staple of modern fantastic literature. | 2001-12-10T06:15:36Z | 2023-12-15T00:21:15Z | [
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7,403 | Chemotaxis | Chemotaxis (from chemo- + taxis) is the movement of an organism or entity in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and development (e.g., migration of neurons or lymphocytes) as well as in normal function and health (e.g., migration of leukocytes during injury or infection). In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis. The aberrant chemotaxis of leukocytes and lymphocytes also contribute to inflammatory diseases such as atherosclerosis, asthma, and arthritis. Sub-cellular components, such as the polarity patch generated by mating yeast, may also display chemotactic behavior.
Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.
Although migration of cells was detected from the early days of the development of microscopy by Leeuwenhoek, a Caltech lecture regarding chemotaxis propounds that 'erudite description of chemotaxis was only first made by T. W. Engelmann (1881) and W. F. Pfeffer (1884) in bacteria, and H. S. Jennings (1906) in ciliates'. The Nobel Prize laureate I. Metchnikoff also contributed to the study of the field during 1882 to 1886, with investigations of the process as an initial step of phagocytosis. The significance of chemotaxis in biology and clinical pathology was widely accepted in the 1930s, and the most fundamental definitions underlying the phenomenon were drafted by this time. The most important aspects in quality control of chemotaxis assays were described by H. Harris in the 1950s. In the 1960s and 1970s, the revolution of modern cell biology and biochemistry provided a series of novel techniques that became available to investigate the migratory responder cells and subcellular fractions responsible for chemotactic activity. The availability of this technology led to the discovery of C5a, a major chemotactic factor involved in acute inflammation. The pioneering works of J. Adler modernized Pfeffer's capillary assay and represented a significant turning point in understanding the whole process of intracellular signal transduction of bacteria.
Some bacteria, such as E. coli, have several flagella per cell (4–10 typically). These can rotate in two ways:
The directions of rotation are given for an observer outside the cell looking down the flagella toward the cell.
The overall movement of a bacterium is the result of alternating tumble and swim phases, called run-and-tumble motion. As a result, the trajectory of a bacterium swimming in a uniform environment will form a random walk with relatively straight swims interrupted by random tumbles that reorient the bacterium. Bacteria such as E. coli are unable to choose the direction in which they swim, and are unable to swim in a straight line for more than a few seconds due to rotational diffusion; in other words, bacteria "forget" the direction in which they are going. By repeatedly evaluating their course, and adjusting if they are moving in the wrong direction, bacteria can direct their random walk motion toward favorable locations.
In the presence of a chemical gradient bacteria will chemotax, or direct their overall motion based on the gradient. If the bacterium senses that it is moving in the correct direction (toward attractant/away from repellent), it will keep swimming in a straight line for a longer time before tumbling; however, if it is moving in the wrong direction, it will tumble sooner. Bacteria like E. coli use temporal sensing to decide whether their situation is improving or not, and in this way, find the location with the highest concentration of attractant, detecting even small differences in concentration.
This biased random walk is a result of simply choosing between two methods of random movement; namely tumbling and straight swimming. The helical nature of the individual flagellar filament is critical for this movement to occur. The protein structure that makes up the flagellar filament, flagellin, is conserved among all flagellated bacteria. Vertebrates seem to have taken advantage of this fact by possessing an immune receptor (TLR5) designed to recognize this conserved protein.
As in many instances in biology, there are bacteria that do not follow this rule. Many bacteria, such as Vibrio, are monoflagellated and have a single flagellum at one pole of the cell. Their method of chemotaxis is different. Others possess a single flagellum that is kept inside the cell wall. These bacteria move by spinning the whole cell, which is shaped like a corkscrew.
Chemical gradients are sensed through multiple transmembrane receptors, called methyl-accepting chemotaxis proteins (MCPs), which vary in the molecules that they detect. Thousands of MCP receptors are known to be encoded across the bacterial kingdom. These receptors may bind attractants or repellents directly or indirectly through interaction with proteins of periplasmatic space. The signals from these receptors are transmitted across the plasma membrane into the cytosol, where Che proteins are activated. The Che proteins alter the tumbling frequency, and alter the receptors.
The proteins CheW and CheA bind to the receptor. The absence of receptor activation results in autophosphorylation in the histidine kinase, CheA, at a single highly conserved histidine residue. CheA, in turn, transfers phosphoryl groups to conserved aspartate residues in the response regulators CheB and CheY; CheA is a histidine kinase and it does not actively transfer the phosphoryl group, rather, the response regulator CheB takes the phosphoryl group from CheA. This mechanism of signal transduction is called a two-component system, and it is a common form of signal transduction in bacteria. CheY induces tumbling by interacting with the flagellar switch protein FliM, inducing a change from counter-clockwise to clockwise rotation of the flagellum. Change in the rotation state of a single flagellum can disrupt the entire flagella bundle and cause a tumble.
CheB, when activated by CheA, acts as a methylesterase, removing methyl groups from glutamate residues on the cytosolic side of the receptor; it works antagonistically with CheR, a methyltransferase, which adds methyl residues to the same glutamate residues. If the level of an attractant remains high, the level of phosphorylation of CheA (and, therefore, CheY and CheB) will remain low, the cell will swim smoothly, and the level of methylation of the MCPs will increase (because CheB-P is not present to demethylate). The MCPs no longer respond to the attractant when they are fully methylated; therefore, even though the level of attractant might remain high, the level of CheA-P (and CheB-P) increases and the cell begins to tumble. The MCPs can be demethylated by CheB-P, and, when this happens, the receptors can once again respond to attractants. The situation is the opposite with regard to repellents: fully methylated MCPs respond best to repellents, while least-methylated MCPs respond worst to repellents. This regulation allows the bacterium to 'remember' chemical concentrations from the recent past, a few seconds, and compare them to those it is currently experiencing, thus 'know' whether it is traveling up or down a gradient. that bacteria have to chemical gradients, other mechanisms are involved in increasing the absolute value of the sensitivity on a given background. Well-established examples are the ultra-sensitive response of the motor to the CheY-P signal, and the clustering of chemoreceptors.
Chemoattractants and chemorepellents are inorganic or organic substances possessing chemotaxis-inducer effect in motile cells. These chemotactic ligands create chemical concentration gradients that organisms, prokaryotic and eukaryotic, move toward or away from, respectively.
Effects of chemoattractants are elicited via chemoreceptors such as methyl-accepting chemotaxis proteins (MCP). MCPs in E.coli include Tar, Tsr, Trg and Tap. Chemoattracttants to Trg include ribose and galactose with phenol as a chemorepellent. Tap and Tsr recognize dipeptides and serine as chemoattractants, respectively.
Chemoattractants or chemorepellents bind MCPs at its extracellular domain; an intracellular signaling domain relays the changes in concentration of these chemotactic ligands to downstream proteins like that of CheA which then relays this signal to flagellar motors via phosphorylated CheY (CheY-P). CheY-P can then control flagellar rotation influencing the direction of cell motility.
For E.coli, S. meliloti, and R. spheroides, the binding of chemoattractants to MCPs inhibit CheA and therefore CheY-P activity, resulting in smooth runs, but for B. substilis, CheA activity increases. Methylation events in E.coli cause MCPs to have lower affinity to chemoattractants which causes increased activity of CheA and CheY-P resulting in tumbles. In this way cells are able to adapt to the immediate chemoattractant concentration and detect further changes to modulate cell motility.
Chemoattractants in eukaryotes are well characterized for immune cells. Formyl peptides, such as fMLF, attract leukocytes such as neutrophils and macrophages, causing movement toward infection sites. Non-acylated methioninyl peptides do not act as chemoattractants to neutrophils and macrophages. Leukocytes also move toward chemoattractants C5a, a complement component, and pathogen-specific ligands on bacteria.
Mechanisms concerning chemorepellents are less known than chemoattractants. Although chemorepellents work to confer an avoidance response in organisms, Tetrahymena thermophila adapt to a chemorepellent, Netrin-1 peptide, within 10 minutes of exposure; however, exposure to chemorepellents such as GTP, PACAP-38, and nociceptin show no such adaptations. GTP and ATP are chemorepellents in micro-molar concentrations to both Tetrahymena and Paramecium. These organisms avoid these molecules by producing avoiding reactions to re-orient themselves away from the gradient.
The mechanism of chemotaxis that eukaryotic cells employ is quite different from that in the bacteria E. coli; however, sensing of chemical gradients is still a crucial step in the process. Due to their small size and other biophysical constraints, E. coli cannot directly detect a concentration gradient. Instead, they employ temporal gradient sensing, where they move over larger distances several times their own width and measure the rate at which perceived chemical concentration changes.
Eukaryotic cells are much larger than prokaryotes and have receptors embedded uniformly throughout the cell membrane. Eukaryotic chemotaxis involves detecting a concentration gradient spatially by comparing the asymmetric activation of these receptors at the different ends of the cell. Activation of these receptors results in migration towards chemoattractants, or away from chemorepellants. In mating yeast, which are non-motile, patches of polarity proteins on the cell cortex can relocate in a chemotactic fashion up pheromone gradients.
It has also been shown that both prokaryotic and eukaryotic cells are capable of chemotactic memory. In prokaryotes, this mechanism involves the methylation of receptors called methyl-accepting chemotaxis proteins (MCPs). This results in their desensitization and allows prokaryotes to "remember" and adapt to a chemical gradient. In contrast, chemotactic memory in eukaryotes can be explained by the Local Excitation Global Inhibition (LEGI) model. LEGI involves the balance between a fast excitation and delayed inhibition which controls downstream signaling such as Ras activation and PIP3 production.
Levels of receptors, intracellular signalling pathways and the effector mechanisms all represent diverse, eukaryotic-type components. In eukaryotic unicellular cells, amoeboid movement and cilium or the eukaryotic flagellum are the main effectors (e.g., Amoeba or Tetrahymena). Some eukaryotic cells of higher vertebrate origin, such as immune cells also move to where they need to be. Besides immune competent cells (granulocyte, monocyte, lymphocyte) a large group of cells—considered previously to be fixed into tissues—are also motile in special physiological (e.g., mast cell, fibroblast, endothelial cells) or pathological conditions (e.g., metastases). Chemotaxis has high significance in the early phases of embryogenesis as development of germ layers is guided by gradients of signal molecules.
Unlike motility in bacterial chemotaxis, the mechanism by which eukaryotic cells physically move is unclear. There appear to be mechanisms by which an external chemotactic gradient is sensed and turned into an intracellular PIP3 gradient, which results in a gradient and the activation of a signaling pathway, culminating in the polymerisation of actin filaments. The growing distal end of actin filaments develops connections with the internal surface of the plasma membrane via different sets of peptides and results in the formation of anterior pseudopods and posterior uropods. Cilia of eukaryotic cells can also produce chemotaxis; in this case, it is mainly a Ca-dependent induction of the microtubular system of the basal body and the beat of the 9 + 2 microtubules within cilia. The orchestrated beating of hundreds of cilia is synchronized by a submembranous system built between basal bodies. The details of the signaling pathways are still not totally clear.
Chemotaxis refers to the directional migration of cells in response to chemical gradients; several variations of chemical-induced migration exist as listed below.
In general, eukaryotic cells sense the presence of chemotactic stimuli through the use of 7-transmembrane (or serpentine) heterotrimeric G-protein-coupled receptors, a class representing a significant portion of the genome. Some members of this gene superfamily are used in eyesight (rhodopsins) as well as in olfaction (smelling). The main classes of chemotaxis receptors are triggered by:
However, induction of a wide set of membrane receptors (e.g., cyclic nucleotides, amino acids, insulin, vasoactive peptides) also elicit migration of the cell.
While some chemotaxis receptors are expressed in the surface membrane with long-term characteristics, as they are determined genetically, others have short-term dynamics, as they are assembled ad hoc in the presence of the ligand. The diverse features of the chemotaxis receptors and ligands allows for the possibility of selecting chemotactic responder cells with a simple chemotaxis assay By chemotactic selection, we can determine whether a still-uncharacterized molecule acts via the long- or the short-term receptor pathway. The term chemotactic selection is also used to designate a technique that separates eukaryotic or prokaryotic cells according to their chemotactic responsiveness to selector ligands.
The number of molecules capable of eliciting chemotactic responses is relatively high, and we can distinguish primary and secondary chemotactic molecules. The main groups of the primary ligands are as follows:
Chemotactic responses elicited by ligand-receptor interactions vary with the concentration of the ligand. Investigations of ligand families (e.g. amino acids or oligopeptides) demonstrates that chemoattractant activity occurs over a wide range, while chemorepellent activities have narrow ranges.
A changed migratory potential of cells has relatively high importance in the development of several clinical symptoms and syndromes. Altered chemotactic activity of extracellular (e.g., Escherichia coli) or intracellular (e.g., Listeria monocytogenes) pathogens itself represents a significant clinical target. Modification of endogenous chemotactic ability of these microorganisms by pharmaceutical agents can decrease or inhibit the ratio of infections or spreading of infectious diseases. Apart from infections, there are some other diseases wherein impaired chemotaxis is the primary etiological factor, as in Chédiak–Higashi syndrome, where giant intracellular vesicles inhibit normal migration of cells.
Several mathematical models of chemotaxis were developed depending on the type of
Although interactions of the factors listed above make the behavior of the solutions of mathematical models of chemotaxis rather complex, it is possible to describe the basic phenomenon of chemotaxis-driven motion in a straightforward way. Indeed, let us denote with φ {\displaystyle \varphi } the spatially non-uniform concentration of the chemo-attractant and ∇ φ {\displaystyle \nabla \varphi } as its gradient. Then the chemotactic cellular flow (also called current) J {\displaystyle {\bf {J}}} that is generated by the chemotaxis is linked to the above gradient by the law:
J = C χ ( φ ) ∇ φ {\displaystyle {\bf {J}}=C\chi (\varphi )\nabla \varphi }
where C {\displaystyle C} is the spatial density of the cells and χ {\displaystyle \chi } is the so-called ’Chemotactic coefficient’ - χ {\displaystyle \chi } is often not constant, but a decreasing function of the chemo-attractant. For some quantity ρ {\displaystyle \rho } that is subject to total flux J {\displaystyle {\bf {J}}} and generation/destruction term S {\displaystyle S} , it is possible to formulate a continuity equation:
where ∇ ⋅ ( ) {\displaystyle \nabla \cdot ()} is the divergence. This general equation applies to both the cell density and the chemo-attractant. Therefore, incorporating a diffusion flux into the total flux term, the interactions between these quantities are governed by a set of coupled reaction-diffusion partial differential equations describing the change in C {\displaystyle C} and φ {\displaystyle \varphi } :
∂ C ∂ t = f ( C ) + ∇ ⋅ [ D C ∇ C − C χ ( φ ) ∇ φ ] ∂ φ ∂ t = g ( φ , C ) + ∇ ⋅ ( D φ ∇ φ ) {\displaystyle {\begin{aligned}{\partial C \over {\partial t}}&=f(C)+\nabla \cdot \left[D_{C}\nabla C-C\chi (\varphi )\nabla \varphi \right]\\{\partial \varphi \over {\partial t}}&=g(\varphi ,C)+\nabla \cdot (D_{\varphi }\nabla \varphi )\end{aligned}}}
where f ( C ) {\displaystyle f(C)} describes the growth in cell density, g ( φ , C ) {\displaystyle g(\varphi ,C)} is the kinetics/source term for the chemo-attractant, and the diffusion coefficients for cell density and the chemo-attractant are respectively D C {\displaystyle D_{C}} and D φ {\displaystyle D_{\varphi }} .
Spatial ecology of soil microorganisms is a function of their chemotactic sensitivities towards substrate and fellow organisms. The chemotactic behavior of the bacteria was proven to lead to non-trivial population patterns even in the absence of environmental heterogeneities. The presence of structural pore scale heterogeneities has an extra impact on the emerging bacterial patterns.
A wide range of techniques is available to evaluate chemotactic activity of cells or the chemoattractant and chemorepellent character of ligands. The basic requirements of the measurement are as follows:
Despite the fact that an ideal chemotaxis assay is still not available, there are several protocols and pieces of equipment that offer good correspondence with the conditions described above. The most commonly used are summarised in the table below:
Chemical robots that use artificial chemotaxis to navigate autonomously have been designed. Applications include targeted delivery of drugs in the body. More recently, enzyme molecules have also shown positive chemotactic behavior in the gradient of their substrates. The thermodynamically-favorable binding of enzymes to their specific substrates is recognized as the origin of enzymatic chemotaxis. Additionally, enzymes in cascades have also shown substrate-driven chemotactic aggregation.
Apart from active enzymes, non-reacting molecules also show chemotactic behavior. This has been demonstrated by using dye molecules that move directionally in gradients of polymer solution through favorable hydrophobic interactions. | [
{
"paragraph_id": 0,
"text": "Chemotaxis (from chemo- + taxis) is the movement of an organism or entity in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and development (e.g., migration of neurons or lymphocytes) as well as in normal function and health (e.g., migration of leukocytes during injury or infection). In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis. The aberrant chemotaxis of leukocytes and lymphocytes also contribute to inflammatory diseases such as atherosclerosis, asthma, and arthritis. Sub-cellular components, such as the polarity patch generated by mating yeast, may also display chemotactic behavior.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Although migration of cells was detected from the early days of the development of microscopy by Leeuwenhoek, a Caltech lecture regarding chemotaxis propounds that 'erudite description of chemotaxis was only first made by T. W. Engelmann (1881) and W. F. Pfeffer (1884) in bacteria, and H. S. Jennings (1906) in ciliates'. The Nobel Prize laureate I. Metchnikoff also contributed to the study of the field during 1882 to 1886, with investigations of the process as an initial step of phagocytosis. The significance of chemotaxis in biology and clinical pathology was widely accepted in the 1930s, and the most fundamental definitions underlying the phenomenon were drafted by this time. The most important aspects in quality control of chemotaxis assays were described by H. Harris in the 1950s. In the 1960s and 1970s, the revolution of modern cell biology and biochemistry provided a series of novel techniques that became available to investigate the migratory responder cells and subcellular fractions responsible for chemotactic activity. The availability of this technology led to the discovery of C5a, a major chemotactic factor involved in acute inflammation. The pioneering works of J. Adler modernized Pfeffer's capillary assay and represented a significant turning point in understanding the whole process of intracellular signal transduction of bacteria.",
"title": "History of chemotaxis research"
},
{
"paragraph_id": 3,
"text": "Some bacteria, such as E. coli, have several flagella per cell (4–10 typically). These can rotate in two ways:",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 4,
"text": "The directions of rotation are given for an observer outside the cell looking down the flagella toward the cell.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 5,
"text": "The overall movement of a bacterium is the result of alternating tumble and swim phases, called run-and-tumble motion. As a result, the trajectory of a bacterium swimming in a uniform environment will form a random walk with relatively straight swims interrupted by random tumbles that reorient the bacterium. Bacteria such as E. coli are unable to choose the direction in which they swim, and are unable to swim in a straight line for more than a few seconds due to rotational diffusion; in other words, bacteria \"forget\" the direction in which they are going. By repeatedly evaluating their course, and adjusting if they are moving in the wrong direction, bacteria can direct their random walk motion toward favorable locations.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 6,
"text": "In the presence of a chemical gradient bacteria will chemotax, or direct their overall motion based on the gradient. If the bacterium senses that it is moving in the correct direction (toward attractant/away from repellent), it will keep swimming in a straight line for a longer time before tumbling; however, if it is moving in the wrong direction, it will tumble sooner. Bacteria like E. coli use temporal sensing to decide whether their situation is improving or not, and in this way, find the location with the highest concentration of attractant, detecting even small differences in concentration.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 7,
"text": "This biased random walk is a result of simply choosing between two methods of random movement; namely tumbling and straight swimming. The helical nature of the individual flagellar filament is critical for this movement to occur. The protein structure that makes up the flagellar filament, flagellin, is conserved among all flagellated bacteria. Vertebrates seem to have taken advantage of this fact by possessing an immune receptor (TLR5) designed to recognize this conserved protein.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 8,
"text": "As in many instances in biology, there are bacteria that do not follow this rule. Many bacteria, such as Vibrio, are monoflagellated and have a single flagellum at one pole of the cell. Their method of chemotaxis is different. Others possess a single flagellum that is kept inside the cell wall. These bacteria move by spinning the whole cell, which is shaped like a corkscrew.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 9,
"text": "Chemical gradients are sensed through multiple transmembrane receptors, called methyl-accepting chemotaxis proteins (MCPs), which vary in the molecules that they detect. Thousands of MCP receptors are known to be encoded across the bacterial kingdom. These receptors may bind attractants or repellents directly or indirectly through interaction with proteins of periplasmatic space. The signals from these receptors are transmitted across the plasma membrane into the cytosol, where Che proteins are activated. The Che proteins alter the tumbling frequency, and alter the receptors.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 10,
"text": "The proteins CheW and CheA bind to the receptor. The absence of receptor activation results in autophosphorylation in the histidine kinase, CheA, at a single highly conserved histidine residue. CheA, in turn, transfers phosphoryl groups to conserved aspartate residues in the response regulators CheB and CheY; CheA is a histidine kinase and it does not actively transfer the phosphoryl group, rather, the response regulator CheB takes the phosphoryl group from CheA. This mechanism of signal transduction is called a two-component system, and it is a common form of signal transduction in bacteria. CheY induces tumbling by interacting with the flagellar switch protein FliM, inducing a change from counter-clockwise to clockwise rotation of the flagellum. Change in the rotation state of a single flagellum can disrupt the entire flagella bundle and cause a tumble.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 11,
"text": "CheB, when activated by CheA, acts as a methylesterase, removing methyl groups from glutamate residues on the cytosolic side of the receptor; it works antagonistically with CheR, a methyltransferase, which adds methyl residues to the same glutamate residues. If the level of an attractant remains high, the level of phosphorylation of CheA (and, therefore, CheY and CheB) will remain low, the cell will swim smoothly, and the level of methylation of the MCPs will increase (because CheB-P is not present to demethylate). The MCPs no longer respond to the attractant when they are fully methylated; therefore, even though the level of attractant might remain high, the level of CheA-P (and CheB-P) increases and the cell begins to tumble. The MCPs can be demethylated by CheB-P, and, when this happens, the receptors can once again respond to attractants. The situation is the opposite with regard to repellents: fully methylated MCPs respond best to repellents, while least-methylated MCPs respond worst to repellents. This regulation allows the bacterium to 'remember' chemical concentrations from the recent past, a few seconds, and compare them to those it is currently experiencing, thus 'know' whether it is traveling up or down a gradient. that bacteria have to chemical gradients, other mechanisms are involved in increasing the absolute value of the sensitivity on a given background. Well-established examples are the ultra-sensitive response of the motor to the CheY-P signal, and the clustering of chemoreceptors.",
"title": "Bacterial chemotaxis—general characteristics"
},
{
"paragraph_id": 12,
"text": "Chemoattractants and chemorepellents are inorganic or organic substances possessing chemotaxis-inducer effect in motile cells. These chemotactic ligands create chemical concentration gradients that organisms, prokaryotic and eukaryotic, move toward or away from, respectively.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 13,
"text": "Effects of chemoattractants are elicited via chemoreceptors such as methyl-accepting chemotaxis proteins (MCP). MCPs in E.coli include Tar, Tsr, Trg and Tap. Chemoattracttants to Trg include ribose and galactose with phenol as a chemorepellent. Tap and Tsr recognize dipeptides and serine as chemoattractants, respectively.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 14,
"text": "Chemoattractants or chemorepellents bind MCPs at its extracellular domain; an intracellular signaling domain relays the changes in concentration of these chemotactic ligands to downstream proteins like that of CheA which then relays this signal to flagellar motors via phosphorylated CheY (CheY-P). CheY-P can then control flagellar rotation influencing the direction of cell motility.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 15,
"text": "For E.coli, S. meliloti, and R. spheroides, the binding of chemoattractants to MCPs inhibit CheA and therefore CheY-P activity, resulting in smooth runs, but for B. substilis, CheA activity increases. Methylation events in E.coli cause MCPs to have lower affinity to chemoattractants which causes increased activity of CheA and CheY-P resulting in tumbles. In this way cells are able to adapt to the immediate chemoattractant concentration and detect further changes to modulate cell motility.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 16,
"text": "Chemoattractants in eukaryotes are well characterized for immune cells. Formyl peptides, such as fMLF, attract leukocytes such as neutrophils and macrophages, causing movement toward infection sites. Non-acylated methioninyl peptides do not act as chemoattractants to neutrophils and macrophages. Leukocytes also move toward chemoattractants C5a, a complement component, and pathogen-specific ligands on bacteria.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 17,
"text": "Mechanisms concerning chemorepellents are less known than chemoattractants. Although chemorepellents work to confer an avoidance response in organisms, Tetrahymena thermophila adapt to a chemorepellent, Netrin-1 peptide, within 10 minutes of exposure; however, exposure to chemorepellents such as GTP, PACAP-38, and nociceptin show no such adaptations. GTP and ATP are chemorepellents in micro-molar concentrations to both Tetrahymena and Paramecium. These organisms avoid these molecules by producing avoiding reactions to re-orient themselves away from the gradient.",
"title": "Chemoattractants and chemorepellents"
},
{
"paragraph_id": 18,
"text": "The mechanism of chemotaxis that eukaryotic cells employ is quite different from that in the bacteria E. coli; however, sensing of chemical gradients is still a crucial step in the process. Due to their small size and other biophysical constraints, E. coli cannot directly detect a concentration gradient. Instead, they employ temporal gradient sensing, where they move over larger distances several times their own width and measure the rate at which perceived chemical concentration changes.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 19,
"text": "Eukaryotic cells are much larger than prokaryotes and have receptors embedded uniformly throughout the cell membrane. Eukaryotic chemotaxis involves detecting a concentration gradient spatially by comparing the asymmetric activation of these receptors at the different ends of the cell. Activation of these receptors results in migration towards chemoattractants, or away from chemorepellants. In mating yeast, which are non-motile, patches of polarity proteins on the cell cortex can relocate in a chemotactic fashion up pheromone gradients.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 20,
"text": "It has also been shown that both prokaryotic and eukaryotic cells are capable of chemotactic memory. In prokaryotes, this mechanism involves the methylation of receptors called methyl-accepting chemotaxis proteins (MCPs). This results in their desensitization and allows prokaryotes to \"remember\" and adapt to a chemical gradient. In contrast, chemotactic memory in eukaryotes can be explained by the Local Excitation Global Inhibition (LEGI) model. LEGI involves the balance between a fast excitation and delayed inhibition which controls downstream signaling such as Ras activation and PIP3 production.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 21,
"text": "Levels of receptors, intracellular signalling pathways and the effector mechanisms all represent diverse, eukaryotic-type components. In eukaryotic unicellular cells, amoeboid movement and cilium or the eukaryotic flagellum are the main effectors (e.g., Amoeba or Tetrahymena). Some eukaryotic cells of higher vertebrate origin, such as immune cells also move to where they need to be. Besides immune competent cells (granulocyte, monocyte, lymphocyte) a large group of cells—considered previously to be fixed into tissues—are also motile in special physiological (e.g., mast cell, fibroblast, endothelial cells) or pathological conditions (e.g., metastases). Chemotaxis has high significance in the early phases of embryogenesis as development of germ layers is guided by gradients of signal molecules.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 22,
"text": "Unlike motility in bacterial chemotaxis, the mechanism by which eukaryotic cells physically move is unclear. There appear to be mechanisms by which an external chemotactic gradient is sensed and turned into an intracellular PIP3 gradient, which results in a gradient and the activation of a signaling pathway, culminating in the polymerisation of actin filaments. The growing distal end of actin filaments develops connections with the internal surface of the plasma membrane via different sets of peptides and results in the formation of anterior pseudopods and posterior uropods. Cilia of eukaryotic cells can also produce chemotaxis; in this case, it is mainly a Ca-dependent induction of the microtubular system of the basal body and the beat of the 9 + 2 microtubules within cilia. The orchestrated beating of hundreds of cilia is synchronized by a submembranous system built between basal bodies. The details of the signaling pathways are still not totally clear.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 23,
"text": "Chemotaxis refers to the directional migration of cells in response to chemical gradients; several variations of chemical-induced migration exist as listed below.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 24,
"text": "In general, eukaryotic cells sense the presence of chemotactic stimuli through the use of 7-transmembrane (or serpentine) heterotrimeric G-protein-coupled receptors, a class representing a significant portion of the genome. Some members of this gene superfamily are used in eyesight (rhodopsins) as well as in olfaction (smelling). The main classes of chemotaxis receptors are triggered by:",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 25,
"text": "However, induction of a wide set of membrane receptors (e.g., cyclic nucleotides, amino acids, insulin, vasoactive peptides) also elicit migration of the cell.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 26,
"text": "While some chemotaxis receptors are expressed in the surface membrane with long-term characteristics, as they are determined genetically, others have short-term dynamics, as they are assembled ad hoc in the presence of the ligand. The diverse features of the chemotaxis receptors and ligands allows for the possibility of selecting chemotactic responder cells with a simple chemotaxis assay By chemotactic selection, we can determine whether a still-uncharacterized molecule acts via the long- or the short-term receptor pathway. The term chemotactic selection is also used to designate a technique that separates eukaryotic or prokaryotic cells according to their chemotactic responsiveness to selector ligands.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 27,
"text": "The number of molecules capable of eliciting chemotactic responses is relatively high, and we can distinguish primary and secondary chemotactic molecules. The main groups of the primary ligands are as follows:",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 28,
"text": "Chemotactic responses elicited by ligand-receptor interactions vary with the concentration of the ligand. Investigations of ligand families (e.g. amino acids or oligopeptides) demonstrates that chemoattractant activity occurs over a wide range, while chemorepellent activities have narrow ranges.",
"title": "Eukaryotic chemotaxis"
},
{
"paragraph_id": 29,
"text": "A changed migratory potential of cells has relatively high importance in the development of several clinical symptoms and syndromes. Altered chemotactic activity of extracellular (e.g., Escherichia coli) or intracellular (e.g., Listeria monocytogenes) pathogens itself represents a significant clinical target. Modification of endogenous chemotactic ability of these microorganisms by pharmaceutical agents can decrease or inhibit the ratio of infections or spreading of infectious diseases. Apart from infections, there are some other diseases wherein impaired chemotaxis is the primary etiological factor, as in Chédiak–Higashi syndrome, where giant intracellular vesicles inhibit normal migration of cells.",
"title": "Clinical significance"
},
{
"paragraph_id": 30,
"text": "Several mathematical models of chemotaxis were developed depending on the type of",
"title": "Mathematical models"
},
{
"paragraph_id": 31,
"text": "Although interactions of the factors listed above make the behavior of the solutions of mathematical models of chemotaxis rather complex, it is possible to describe the basic phenomenon of chemotaxis-driven motion in a straightforward way. Indeed, let us denote with φ {\\displaystyle \\varphi } the spatially non-uniform concentration of the chemo-attractant and ∇ φ {\\displaystyle \\nabla \\varphi } as its gradient. Then the chemotactic cellular flow (also called current) J {\\displaystyle {\\bf {J}}} that is generated by the chemotaxis is linked to the above gradient by the law:",
"title": "Mathematical models"
},
{
"paragraph_id": 32,
"text": "J = C χ ( φ ) ∇ φ {\\displaystyle {\\bf {J}}=C\\chi (\\varphi )\\nabla \\varphi }",
"title": "Mathematical models"
},
{
"paragraph_id": 33,
"text": "where C {\\displaystyle C} is the spatial density of the cells and χ {\\displaystyle \\chi } is the so-called ’Chemotactic coefficient’ - χ {\\displaystyle \\chi } is often not constant, but a decreasing function of the chemo-attractant. For some quantity ρ {\\displaystyle \\rho } that is subject to total flux J {\\displaystyle {\\bf {J}}} and generation/destruction term S {\\displaystyle S} , it is possible to formulate a continuity equation:",
"title": "Mathematical models"
},
{
"paragraph_id": 34,
"text": "where ∇ ⋅ ( ) {\\displaystyle \\nabla \\cdot ()} is the divergence. This general equation applies to both the cell density and the chemo-attractant. Therefore, incorporating a diffusion flux into the total flux term, the interactions between these quantities are governed by a set of coupled reaction-diffusion partial differential equations describing the change in C {\\displaystyle C} and φ {\\displaystyle \\varphi } :",
"title": "Mathematical models"
},
{
"paragraph_id": 35,
"text": "∂ C ∂ t = f ( C ) + ∇ ⋅ [ D C ∇ C − C χ ( φ ) ∇ φ ] ∂ φ ∂ t = g ( φ , C ) + ∇ ⋅ ( D φ ∇ φ ) {\\displaystyle {\\begin{aligned}{\\partial C \\over {\\partial t}}&=f(C)+\\nabla \\cdot \\left[D_{C}\\nabla C-C\\chi (\\varphi )\\nabla \\varphi \\right]\\\\{\\partial \\varphi \\over {\\partial t}}&=g(\\varphi ,C)+\\nabla \\cdot (D_{\\varphi }\\nabla \\varphi )\\end{aligned}}}",
"title": "Mathematical models"
},
{
"paragraph_id": 36,
"text": "where f ( C ) {\\displaystyle f(C)} describes the growth in cell density, g ( φ , C ) {\\displaystyle g(\\varphi ,C)} is the kinetics/source term for the chemo-attractant, and the diffusion coefficients for cell density and the chemo-attractant are respectively D C {\\displaystyle D_{C}} and D φ {\\displaystyle D_{\\varphi }} .",
"title": "Mathematical models"
},
{
"paragraph_id": 37,
"text": "Spatial ecology of soil microorganisms is a function of their chemotactic sensitivities towards substrate and fellow organisms. The chemotactic behavior of the bacteria was proven to lead to non-trivial population patterns even in the absence of environmental heterogeneities. The presence of structural pore scale heterogeneities has an extra impact on the emerging bacterial patterns.",
"title": "Mathematical models"
},
{
"paragraph_id": 38,
"text": "A wide range of techniques is available to evaluate chemotactic activity of cells or the chemoattractant and chemorepellent character of ligands. The basic requirements of the measurement are as follows:",
"title": "Measurement of chemotaxis"
},
{
"paragraph_id": 39,
"text": "Despite the fact that an ideal chemotaxis assay is still not available, there are several protocols and pieces of equipment that offer good correspondence with the conditions described above. The most commonly used are summarised in the table below:",
"title": "Measurement of chemotaxis"
},
{
"paragraph_id": 40,
"text": "Chemical robots that use artificial chemotaxis to navigate autonomously have been designed. Applications include targeted delivery of drugs in the body. More recently, enzyme molecules have also shown positive chemotactic behavior in the gradient of their substrates. The thermodynamically-favorable binding of enzymes to their specific substrates is recognized as the origin of enzymatic chemotaxis. Additionally, enzymes in cascades have also shown substrate-driven chemotactic aggregation.",
"title": "Artificial chemotactic systems"
},
{
"paragraph_id": 41,
"text": "Apart from active enzymes, non-reacting molecules also show chemotactic behavior. This has been demonstrated by using dye molecules that move directionally in gradients of polymer solution through favorable hydrophobic interactions.",
"title": "Artificial chemotactic systems"
}
] | Chemotaxis is the movement of an organism or entity in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food by swimming toward the highest concentration of food molecules, or to flee from poisons. In multicellular organisms, chemotaxis is critical to early development and development as well as in normal function and health. In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis. The aberrant chemotaxis of leukocytes and lymphocytes also contribute to inflammatory diseases such as atherosclerosis, asthma, and arthritis. Sub-cellular components, such as the polarity patch generated by mating yeast, may also display chemotactic behavior. Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis can be called chemokinesis. | 2001-12-10T10:30:39Z | 2023-11-30T06:36:56Z | [
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] | https://en.wikipedia.org/wiki/Chemotaxis |
7,406 | Cheshire | Cheshire (/ˈtʃɛʃər, -ɪər/ CHESH-ər, -eer) is a ceremonial county in North West England. It is bordered by Merseyside to the north-west, Greater Manchester to the north-east, Derbyshire to the east, Staffordshire to the south-east, and Shropshire to the south; to the west it is bordered by the Welsh counties of Flintshire and Wrexham, and has a short coastline on the Dee Estuary. Warrington is the largest settlement, and the city of Chester is the county town.
The county has an area of 905 square miles (2,344 km) and had a population of 1,095,500 at the 2021 census. After Warrington (212,000), the largest settlements are Chester (86,011) and Crewe (71,722). The south and east of the county are primarily rural, while the north is more densely populated and includes the settlements of Runcorn, Widnes, and Ellesmere Port. For local government purposes Cheshire comprises four unitary authority areas: Cheshire East, Cheshire West and Chester, Halton, and Warrington. The county historically included all of the Wirral Peninsula and southern Greater Manchester but excluded Widnes and Warrington, which were part of Lancashire.
The landscape of the county is dominated by the Cheshire Plain, an area of relatively flat land divided by the Mid-Cheshire Ridge. To the west, Cheshire contains the south of the Wirral Peninsula, and to the east the landscape rises to the Pennines, where the county contains part of the Peak District National Park. The River Mersey runs through the north of Cheshire before broadening into its wide estuary; the River Dee forms part of the county's border with Wales, then fully enters England and flows through the city of Chester before re-entering Wales upstream of its estuary. Red Triassic sandstone forms the bedrock of much of the county, and was used in the construction of many of its buildings.
The culture of Cheshire has impacted global pop culture by producing actors such as Daniel Craig, Tim Curry, and Pete Postlethwaite; athletes such as Shauna Coxsey, Tyson Fury, and Paula Radcliffe; authors such as Lewis Carroll; comedians such as John Bishop and Ben Miller, and musicians such as Gary Barlow, Ian Curtis, and Harry Styles. Most places are involved in agriculture and chemistry, leading to Cheshire's reputation for the production of chemicals, Cheshire cheese, salt, and silk.
Cheshire's name was originally derived from an early name for Chester, and was first recorded as Legeceasterscir in the Anglo-Saxon Chronicle, meaning "the shire of the city of legions". Although the name first appears in 980, it is thought that the county was created by Edward the Elder around 920. In the Domesday Book, Chester was recorded as having the name Cestrescir (Chestershire), derived from the name for Chester at the time. Through the next few centuries a series of changes that occurred in the English language, which have included simplifications and elision, has resulted in the name Cheshire.
Because of the historically close links with the land bordering Cheshire to the west, which became modern Wales, there is a history of interaction between Cheshire and North Wales. The Domesday Book records Cheshire as having two complete Hundreds (Atiscross and Exestan) that later became the principal part of Flintshire. Additionally, another large portion of the Duddestan Hundred later became known as English Maelor (Maelor Saesneg) when it was transferred to North Wales. For this and other reasons, the Welsh language name for Cheshire, Swydd Gaerlleon, is sometimes used.
After the Norman conquest of 1066 by William I, dissent and resistance continued for many years after the invasion. In 1069 local resistance in Cheshire was finally put down using draconian measures as part of the Harrying of the North. The ferocity of the campaign against the English populace was enough to end all future resistance. Examples were made of major landowners such as Earl Edwin of Mercia, their properties confiscated and redistributed amongst Norman barons.
The earldom was sufficiently independent from the kingdom of England that the 13th-century Magna Carta did not apply to the shire of Chester, so the earl wrote up his own Chester Charter at the petition of his barons.
William I made Cheshire a county palatine and gave Gerbod the Fleming the new title of Earl of Chester. When Gerbod returned to Normandy in about 1070, the king used his absence to declare the earldom forfeit and gave the title to Hugh d'Avranches (nicknamed Hugh Lupus, or "wolf"). Because of Cheshire's strategic location on the Welsh Marches, the Earl had complete autonomous powers to rule on behalf of the king in the county palatine.
Cheshire in the Domesday Book (1086) is recorded as a much larger county than it is today. It included two hundreds, Atiscross and Exestan, that later became part of North Wales. At the time of the Domesday Book, it also included as part of Duddestan Hundred the area of land later known as English Maelor (which used to be a detached part of Flintshire) in Wales. The area between the Mersey and Ribble (referred to in the Domesday Book as "Inter Ripam et Mersam") formed part of the returns for Cheshire. Although this has been interpreted to mean that at that time south Lancashire was part of Cheshire, more exhaustive research indicates that the boundary between Cheshire and what was to become Lancashire remained the River Mersey. With minor variations in spelling across sources, the complete list of hundreds of Cheshire at this time are: Atiscross, Bochelau, Chester, Dudestan, Exestan, Hamestan, Middlewich, Riseton, Roelau, Tunendune, Warmundestrou and Wilaveston.
There were 8 feudal baronies in Chester, the barons of Kinderton, Halton, Malbank, Mold, Shipbrook, Dunham-Massey, and the honour of Chester itself. Feudal baronies or baronies by tenure were granted by the Earl as forms of feudal land tenure within the palatinate in a similar way to which the king granted English feudal baronies within England proper. An example is the barony of Halton. One of Hugh d'Avranche's barons has been identified as Robert Nicholls, Baron of Halton and Montebourg.
In 1182, the land north of the Mersey became administered as part of the new county of Lancashire, resolving any uncertainty about the county in which the land "Inter Ripam et Mersam" was. Over the years, the ten hundreds consolidated and changed names to leave just seven—Broxton, Bucklow, Eddisbury, Macclesfield, Nantwich, Northwich and Wirral.
In 1397 the county had lands in the march of Wales added to its territory, and was promoted to the rank of principality. This was because of the support the men of the county had given to King Richard II, in particular by his standing armed force of about 500 men called the "Cheshire Guard". As a result, the King's title was changed to "King of England and France, Lord of Ireland, and Prince of Chester". No other English county has been honoured in this way, although it lost the distinction on Richard's fall in 1399.
Through the Local Government Act 1972, which came into effect on 1 April 1974, some areas in the north became part of the metropolitan counties of Greater Manchester and Merseyside. Stockport (previously a county borough), Altrincham, Hyde, Dukinfield and Stalybridge in the north-east became part of Greater Manchester. Much of the Wirral Peninsula in the north-west, including the county boroughs of Birkenhead and Wallasey, joined Merseyside as the Metropolitan Borough of Wirral. At the same time the Tintwistle Rural District was transferred to Derbyshire. The area of south Lancashire not included within either the Merseyside or Greater Manchester counties, including Widnes and the county borough of Warrington, was added to the new non-metropolitan county of Cheshire.
Halton and Warrington became unitary authorities independent of Cheshire County Council on 1 April 1998, but remain part of Cheshire for ceremonial purposes and also for fire and policing. Halton is part of Liverpool City Region combined authority, which also includes the five metropolitan boroughs of Merseyside.
A referendum for a further local government reform connected with an elected regional assembly was planned for 2004, but was abandoned.
As part of the local government restructuring in April 2009, Cheshire County Council and the Cheshire districts were abolished and replaced by two new unitary authorities, Cheshire East and Cheshire West and Chester. The existing unitary authorities of Halton and Warrington were not affected by the change.
Cheshire has no county-wide elected local council, but it does have a Lord Lieutenant under the Lieutenancies Act 1997 and a High Sheriff under the Sheriffs Act 1887.
Local government functions apart from the Police and Fire/Rescue services are carried out by four smaller unitary authorities: Cheshire East, Cheshire West and Chester, Halton, and Warrington. All four unitary authority areas have borough status.
Policing and fire and rescue services are still provided across the county as a whole. The Cheshire Fire Authority consist of members of the four councils, while governance of Cheshire Constabulary is performed by the elected Cheshire Police and Crime Commissioner.
Winsford is a major administrative hub for Cheshire with the Police and Fire & Rescue Headquarters based in the town as well as a majority of Cheshire West and Chester Council. It was also home to the former Vale Royal Borough Council and Cheshire County Council.
From 1 April 1974 the area under the control of the county council was divided into eight local government districts; Chester, Congleton, Crewe and Nantwich, Ellesmere Port and Neston, Halton, Macclesfield, Vale Royal and Warrington. Halton (which includes the towns of Runcorn and Widnes) and Warrington became unitary authorities in 1998. The remaining districts and the county were abolished as part of local government restructuring on 1 April 2009. The Halton and Warrington boroughs were not affected by the 2009 restructuring.
On 25 July 2007, the Secretary of State Hazel Blears announced she was 'minded' to split Cheshire into two new unitary authorities, Cheshire West and Chester, and Cheshire East. She confirmed she had not changed her mind on 19 December 2007 and therefore the proposal to split two-tier Cheshire into two would proceed. Cheshire County Council leader Paul Findlow, who attempted High Court legal action against the proposal, claimed that splitting Cheshire would only disrupt excellent services while increasing living costs for all. On 31 January 2008 The Standard, Cheshire and district's newspaper, announced that the legal action had been dropped. Members against the proposal were advised that they may be unable to persuade the court that the decision of Hazel Blears was "manifestly absurd".
The Cheshire West and Chester unitary authority covers the area formerly occupied by the City of Chester and the boroughs of Ellesmere Port and Neston and Vale Royal; Cheshire East now covers the area formerly occupied by the boroughs of Congleton, Crewe and Nantwich, and Macclesfield. The changes were implemented on 1 April 2009.
Congleton Borough Council pursued an appeal against the judicial review it lost in October 2007. The appeal was dismissed on 4 March 2008.
A plain of glacial till and other glacio-fluvial sediments extends across much of Cheshire, separating the hills of North Wales and the Pennines. Known as the Cheshire Plain, it was formed following the retreat of a Quaternary ice sheet which left the area dotted with kettle holes, those which hold water being referred to as meres. The bedrock of this region is almost entirely Triassic sandstone, outcrops of which have long been quarried, notably at Runcorn, providing the distinctive red stone for Liverpool Cathedral and Chester Cathedral.
The eastern half of the county is Upper Triassic Mercia Mudstone laid down with large salt deposits which were mined for hundreds of years around Winsford. Separating this area from Lower Triassic Sherwood Sandstone to the west is a prominent sandstone ridge known as the Mid Cheshire Ridge. A 55-kilometre (34 mi) footpath, the Sandstone Trail, follows this ridge from Frodsham to Whitchurch passing Delamere Forest, Beeston Castle and earlier Iron Age forts.
The western fringes of the Peak District - the southernmost extent of the Pennine range - form the eastern part of the county. The highest point (county top) in the historic county of Cheshire was Black Hill (582 m (1,909 ft)) near Crowden in the Cheshire Panhandle, a long eastern projection of the county which formerly stretched along the northern side of Longdendale and on the border with the West Riding of Yorkshire. Black Hill is now the highest point in the ceremonial county of West Yorkshire.
Within the current ceremonial county and the unitary authority of Cheshire East the highest point is Shining Tor on the Derbyshire/Cheshire border between Macclesfield and Buxton, at 559 metres (1,834 ft) above sea level. After Shining Tor, the next highest point in Cheshire is Shutlingsloe, at 506 metres (1,660 ft) above sea level. Shutlingsloe lies just to the south of Macclesfield Forest and is sometimes humorously referred to as the "Matterhorn of Cheshire" thanks to its distinctive steep profile.
Cheshire contains portions of two green belt areas surrounding the large conurbations of Merseyside and Greater Manchester (North Cheshire Green Belt, part of the North West Green Belt) and Stoke-on-Trent (South Cheshire Green Belt, part of the Stoke-on-Trent Green Belt), these were first drawn up from the 1950s. Contained primarily within Cheshire East and Chester West & Chester, with small portions along the borders of the Halton and Warrington districts, towns and cities such as Chester, Macclesfield, Alsager, Congleton, Northwich, Ellesmere Port, Knutsford, Warrington, Poynton, Disley, Neston, Wilmslow, Runcorn, and Widnes are either surrounded wholly, partially enveloped by, or on the fringes of the belts. The North Cheshire Green Belt is contiguous with the Peak District Park boundary inside Cheshire.
The ceremonial county borders Merseyside, Greater Manchester, Derbyshire, Staffordshire and Shropshire in England along with Flintshire and Wrexham in Wales, arranged by compass directions as shown in the table. below. Cheshire also forms part of the North West England region.
In July 2022, beavers bred in Cheshire for the first time in 400 years, following a reintroduction scheme.
Based on the Census of 2001, the overall population of Cheshire East and Cheshire West and Chester is 673,781, of which 51.3% of the population were male and 48.7% were female. Of those aged between 0–14 years, 51.5% were male and 48.4% were female; and of those aged over 75 years, 62.9% were female and 37.1% were male. This increased to 699,735 at the 2011 Census. The population for 2021 is forecast to be 708,000.
In 2001, the population density of Cheshire East and Cheshire West and Chester was 32 people per km, lower than the North West average of 42 people/km and the England and Wales average of 38 people/km. Ellesmere Port and Neston had a greater urban density than the rest of the county with 92 people/km.
In 2001, ethnic white groups accounted for 98% (662,794) of the population, and 10,994 (2%) in ethnic groups other than white.
Of the 2% in non-white ethnic groups:
In the 2001 Census, 81% of the population (542,413) identified themselves as Christian; 124,677 (19%) did not identify with any religion or did not answer the question; 5,665 (1%) identified themselves as belonging to other major world religions; and 1,033 belonged to other religions.
The boundary of the Church of England Diocese of Chester follows most closely the pre-1974 county boundary of Cheshire, so it includes all of Wirral, Stockport, and the Cheshire panhandle that included Tintwistle Rural District council area. In terms of Roman Catholic church administration, most of Cheshire falls into the Roman Catholic Diocese of Shrewsbury.
Cheshire has a diverse economy with significant sectors including agriculture, automotive, bio-technology, chemical, financial services, food and drink, ICT, and tourism. The county is famous for the production of Cheshire cheese, salt and silk. The county has seen a number of inventions and firsts in its history.
A mainly rural county, Cheshire has a high concentration of villages. Agriculture is generally based on the dairy trade, and cattle are the predominant livestock. Land use given to agriculture has fluctuated somewhat, and in 2005 totalled 1558 km over 4,609 holdings. Based on holdings by EC farm type in 2005, 8.51 km was allocated to dairy farming, with another 11.78 km allocated to cattle and sheep.
The chemical industry in Cheshire was founded in Roman times, with the mining of salt in Middlewich and Northwich. Salt is still mined in the area by British Salt. The salt mining has led to a continued chemical industry around Northwich, with Brunner Mond based in the town. Other chemical companies, including Ineos (formerly ICI), have plants at Runcorn. The Essar Refinery (formerly Shell Stanlow Refinery) is at Ellesmere Port. The oil refinery has operated since 1924 and has a capacity of 12 million tonnes per year.
Crewe was once the centre of the British railway industry, and remains a major railway junction. The Crewe railway works, built in 1840, employed 20,000 people at its peak, although the workforce is now less than 1,000. Crewe is also the home of Bentley cars. Also within Cheshire are manufacturing plants for Jaguar and Vauxhall Motors in Ellesmere Port.
The county also has an aircraft industry, with the BAE Systems facility at Woodford Aerodrome, part of BAE System's Military Air Solutions division. The facility designed and constructed Avro Lancaster and Avro Vulcan bombers and the Hawker-Siddeley Nimrod. On the Cheshire border with Flintshire is the Broughton aircraft factory, more recently associated with Airbus.
Tourism in Cheshire from within the UK and overseas continues to perform strongly. Over 8 million nights of accommodation (both UK and overseas) and over 2.8 million visits to Cheshire were recorded during 2003.
At the start of 2003, there were 22,020 VAT-registered enterprises in Cheshire, an increase of 7% since 1998, many in the business services (31.9%) and wholesale/retail (21.7%) sectors. Between 2002 and 2003 the number of businesses grew in four sectors: public administration and other services (6.0%), hotels and restaurants (5.1%), construction (1.7%), and business services (1.0%). The county saw the largest proportional reduction between 2001 and 2002 in employment in the energy and water sector and there was also a significant reduction in the manufacturing sector. The largest growth during this period was in the other services and distribution, hotels and retail sectors.
Cheshire is considered to be an affluent county. However, towns such as Crewe and Winsford have significant deprivation. The county's proximity to the cities of Manchester and Liverpool means counter urbanisation is common. Cheshire West has a fairly large proportion of residents who work in Liverpool and Manchester, while the town of Northwich and area of Cheshire East falls more within Manchester's sphere of influence.
All four local education authorities in Cheshire operate only comprehensive state school systems. When Altrincham, Sale and Bebington were moved from Cheshire to Trafford and Merseyside in 1974, they took some former Cheshire selective schools. There are two universities based in the county, the University of Chester and the Chester campus of The University of Law. The Crewe campus of Manchester Metropolitan University was scheduled to close in 2019.
Cheshire has produced musicians such as Joy Division members Ian Curtis and Stephen Morris, One Direction member Harry Styles, the members of The 1975, Take That member Gary Barlow, The Cult member Ian Astbury, Catfish and the Bottlemen member Van McCann, Girls Aloud member Nicola Roberts, Stephen Hough, John Mayall, The Charlatans member Tim Burgess, and Nigel Stonier.
Actors from Cheshire include Russ Abbot, Warren Brown, Julia Chan, Ray Coulthard, Daniel Craig, Tim Curry, Wendy Hiller, Tom Hughes, Tim McInnerny, Ben Miller, Pete Postlethwaite, Adam Rickitt, John Steiner, and Ann Todd. The most famous author from the county is Lewis Carroll, who wrote Alice's Adventures in Wonderland and named the Cheshire Cat character after it. Other notable Cheshire writers include Hall Caine, Alan Garner, and Elizabeth Gaskell. Artists from Cheshire include ceramic artist Emma Bossons and sculptor/photographer Andy Goldsworthy.
Local news and television programmes are provided by BBC North West and ITV Granada. Television signals are received from the Winter Hill TV transmitter.
Local radio stations in the county include Chester's Dee Radio, Capital North West and Wales, Smooth Wales, Cheshire's Silk 106.9 and Signal 1. It is one of only four counties in the country (along with County Durham, Dorset, and Rutland) that does not have its own designated BBC radio station; the south and parts of the east are covered by BBC Radio Stoke, while BBC Radio Merseyside tends to cover the west, and BBC Radio Manchester covers the north and parts of the east. The BBC directs readers to Stoke and Staffordshire when Cheshire is selected on their website. There were plans to launch BBC Radio Cheshire, but those were shelved in 2007 after the BBC license fee settlement was lower than expected.
Athletes native to Cheshire include sailor Ben Ainslie, cricketer Ian Botham, rock climber Shauna Coxsey, boxer Tyson Fury, oarsman Matt Langridge, mountaineer George Mallory, marathon runner Paula Radcliffe, cyclist Sarah Storey, and hurdler Shirley Strong. It has also been home to numerous athletes from outside the county. Many Premier League footballers have relocated there over the years upon joining nearby teams such as Manchester United FC, Manchester City FC, Everton FC, and Liverpool FC. These include Dean Ashton, Seth Johnson, Jesse Lingard, Michael Owen, and Wayne Rooney. The "Cheshire Golden Triangle" is the collective name for a group of adjacent Cheshire villages where the amount of footballers, actors, and entrepreneurs moving in over the years led to the average house prices becoming some of the most expensive in the UK.
Cheshire has one Football League team, Crewe Alexandra, which plays in League One. Chester F.C., a phoenix club formed in 2010 after ex-Football League club Chester City was dissolved, competes in the National League North. Northwich Victoria, another ex-League team which was a founding member of the Football League Division Two in 1892/1893, now represents Cheshire in the Northern Premier League along with Nantwich Town, Warrington Town, and Witton Albion. Macclesfield Town another former League club, went into liquidation in 2020; a phoenix club, Macclesfield F.C., was formed in 2021.
The Warrington Wolves and Widnes Vikings are the premier rugby league teams in Cheshire; the former plays in the Super League, while the latter plays in the Championship. There are also numerous junior clubs in the county, including Chester Gladiators. Cheshire County Cricket Club is one of the clubs that make up the minor counties of English and Welsh cricket. Cheshire also is represented in the highest level basketball league in the UK, the BBL, by Cheshire Phoenix (formerly Cheshire Jets). Europe's largest motorcycle event, the Thundersprint, is held in Northwich every May.
The Royal Cheshire Show, an annual agricultural show, has taken place since the 1800s.
Cheshire also produced a military hero in Norman Cyril Jones, a World War I flying ace who won the Distinguished Flying Cross.
As part of a 2002 marketing campaign, the plant conservation charity Plantlife chose the cuckooflower as the county flower. Previously, a sheaf of golden wheat was the county emblem, a reference to the Earl of Chester's arms in use from the 12th century.
Prehistoric burial grounds have been discovered at The Bridestones near Congleton (Neolithic) and Robin Hood's Tump near Alpraham (Bronze Age). The remains of Iron Age hill forts are found on sandstone ridges at several locations in Cheshire. Examples include Maiden Castle on Bickerton Hill, Helsby Hillfort and Woodhouse Hillfort at Frodsham. The Roman fortress and walls of Chester, perhaps the earliest building works in Cheshire remaining above ground, are constructed from purple-grey sandstone.
The distinctive local red sandstone has been used for many monumental and ecclesiastical buildings throughout the county: for example, the medieval Beeston Castle, Chester Cathedral and numerous parish churches. Occasional residential and industrial buildings, such as Helsby railway station (1849), are also in this sandstone.
Many surviving buildings from the 15th to 17th centuries are timbered, particularly in the southern part of the county. Notable examples include the moated manor house Little Moreton Hall, dating from around 1450, and many commercial and residential buildings in Chester, Nantwich and surrounding villages.
Early brick buildings include Peover Hall near Macclesfield (1585), Tattenhall Hall (pre-1622), and the Pied Bull Hotel in Chester (17th-century). From the 18th century, orange, red or brown brick became the predominant building material used in Cheshire, although earlier buildings are often faced or dressed with stone. Examples from the Victorian period onwards often employ distinctive brick detailing, such as brick patterning and ornate chimney stacks and gables. Notable examples include Arley Hall near Northwich, Willington Hall near Chester (both by Nantwich architect George Latham) and Overleigh Lodge, Chester. From the Victorian era, brick buildings often incorporate timberwork in a mock Tudor style, and this hybrid style has been used in some modern residential developments in the county. Industrial buildings, such as the Macclesfield silk mills (for example, Waters Green New Mill), are also usually in brick.
The county is home to some of the most affluent areas of northern England, including Alderley Edge, Wilmslow, Prestbury, Tarporley and Knutsford, named in 2006 as the most expensive place to buy a house in the north of England. The former Cheshire town of Altrincham was in second place. The area is sometimes referred to as The Golden Triangle on account of the area in and around the aforementioned towns and villages.
The cities and towns in Cheshire are:
Some settlements which were historically part of the county now fall under the counties of Derbyshire, Merseyside and Greater Manchester:
The main railway line through the county is the West Coast Main Line. Trains on the main London to Scotland line call at Crewe (in the south of the county) and Warrington Bank Quay (in the north of the county). Trains stop at Crewe and Runcorn on the Liverpool branch of the WCML; Crewe and Macclesfield are each hourly stops on the two Manchester branches. The major interchanges are:
In the east of Cheshire, Macclesfield station is served by Avanti West Coast, CrossCountry and Northern, on the Manchester–London line. Services from Manchester to the south coast frequently stop at Macclesfield. Neston on the Wirral Peninsula is served by a railway station on the Borderlands line between Bidston and Wrexham.
Cheshire has 3,417 miles (5,499 km) of roads, including 214 miles (344 km) of the M6, M62, M53 and M56 motorways; there are 23 interchanges and four service areas. It also has the A580 "East Lancashire Road" at its border with Greater Manchester at Leigh. The M6 motorway at the Thelwall Viaduct carries 140,000 vehicles every 24 hours.
Bus transport in Cheshire is provided by various operators. The major bus operator in the Cheshire area is D&G Bus. Other operators in Cheshire include Stagecoach Chester & Wirral and Network Warrington.
There are also several operators based outside of Cheshire, who either run services wholly within the area or services which start from outside the area. Companies include Arriva Buses Wales, Aimee's Travel, High Peak, First Greater Manchester, D&G bus and Stagecoach Manchester.
Some services are run under contract to Cheshire West and Chester, Cheshire East, Borough of Halton and Warrington Councils.
The Cheshire canal system includes several canals originally used to transport the county's industrial products (mostly chemicals). Nowadays they are mainly used for tourist traffic. The Cheshire Ring is formed from the Rochdale, Ashton, Peak Forest, Macclesfield, Trent and Mersey and Bridgewater canals.
The Manchester Ship Canal is a wide, 36-mile (58 km) stretch of water opened in 1894. It consists of the rivers Irwell and Mersey made navigable to Manchester for seagoing ships leaving the Mersey estuary. The canal passes through the north of the county via Runcorn and Warrington. Rivers and canals in the county are: | [
{
"paragraph_id": 0,
"text": "Cheshire (/ˈtʃɛʃər, -ɪər/ CHESH-ər, -eer) is a ceremonial county in North West England. It is bordered by Merseyside to the north-west, Greater Manchester to the north-east, Derbyshire to the east, Staffordshire to the south-east, and Shropshire to the south; to the west it is bordered by the Welsh counties of Flintshire and Wrexham, and has a short coastline on the Dee Estuary. Warrington is the largest settlement, and the city of Chester is the county town.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The county has an area of 905 square miles (2,344 km) and had a population of 1,095,500 at the 2021 census. After Warrington (212,000), the largest settlements are Chester (86,011) and Crewe (71,722). The south and east of the county are primarily rural, while the north is more densely populated and includes the settlements of Runcorn, Widnes, and Ellesmere Port. For local government purposes Cheshire comprises four unitary authority areas: Cheshire East, Cheshire West and Chester, Halton, and Warrington. The county historically included all of the Wirral Peninsula and southern Greater Manchester but excluded Widnes and Warrington, which were part of Lancashire.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The landscape of the county is dominated by the Cheshire Plain, an area of relatively flat land divided by the Mid-Cheshire Ridge. To the west, Cheshire contains the south of the Wirral Peninsula, and to the east the landscape rises to the Pennines, where the county contains part of the Peak District National Park. The River Mersey runs through the north of Cheshire before broadening into its wide estuary; the River Dee forms part of the county's border with Wales, then fully enters England and flows through the city of Chester before re-entering Wales upstream of its estuary. Red Triassic sandstone forms the bedrock of much of the county, and was used in the construction of many of its buildings.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The culture of Cheshire has impacted global pop culture by producing actors such as Daniel Craig, Tim Curry, and Pete Postlethwaite; athletes such as Shauna Coxsey, Tyson Fury, and Paula Radcliffe; authors such as Lewis Carroll; comedians such as John Bishop and Ben Miller, and musicians such as Gary Barlow, Ian Curtis, and Harry Styles. Most places are involved in agriculture and chemistry, leading to Cheshire's reputation for the production of chemicals, Cheshire cheese, salt, and silk.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Cheshire's name was originally derived from an early name for Chester, and was first recorded as Legeceasterscir in the Anglo-Saxon Chronicle, meaning \"the shire of the city of legions\". Although the name first appears in 980, it is thought that the county was created by Edward the Elder around 920. In the Domesday Book, Chester was recorded as having the name Cestrescir (Chestershire), derived from the name for Chester at the time. Through the next few centuries a series of changes that occurred in the English language, which have included simplifications and elision, has resulted in the name Cheshire.",
"title": "Toponymy"
},
{
"paragraph_id": 5,
"text": "Because of the historically close links with the land bordering Cheshire to the west, which became modern Wales, there is a history of interaction between Cheshire and North Wales. The Domesday Book records Cheshire as having two complete Hundreds (Atiscross and Exestan) that later became the principal part of Flintshire. Additionally, another large portion of the Duddestan Hundred later became known as English Maelor (Maelor Saesneg) when it was transferred to North Wales. For this and other reasons, the Welsh language name for Cheshire, Swydd Gaerlleon, is sometimes used.",
"title": "Toponymy"
},
{
"paragraph_id": 6,
"text": "After the Norman conquest of 1066 by William I, dissent and resistance continued for many years after the invasion. In 1069 local resistance in Cheshire was finally put down using draconian measures as part of the Harrying of the North. The ferocity of the campaign against the English populace was enough to end all future resistance. Examples were made of major landowners such as Earl Edwin of Mercia, their properties confiscated and redistributed amongst Norman barons.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "The earldom was sufficiently independent from the kingdom of England that the 13th-century Magna Carta did not apply to the shire of Chester, so the earl wrote up his own Chester Charter at the petition of his barons.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "William I made Cheshire a county palatine and gave Gerbod the Fleming the new title of Earl of Chester. When Gerbod returned to Normandy in about 1070, the king used his absence to declare the earldom forfeit and gave the title to Hugh d'Avranches (nicknamed Hugh Lupus, or \"wolf\"). Because of Cheshire's strategic location on the Welsh Marches, the Earl had complete autonomous powers to rule on behalf of the king in the county palatine.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "Cheshire in the Domesday Book (1086) is recorded as a much larger county than it is today. It included two hundreds, Atiscross and Exestan, that later became part of North Wales. At the time of the Domesday Book, it also included as part of Duddestan Hundred the area of land later known as English Maelor (which used to be a detached part of Flintshire) in Wales. The area between the Mersey and Ribble (referred to in the Domesday Book as \"Inter Ripam et Mersam\") formed part of the returns for Cheshire. Although this has been interpreted to mean that at that time south Lancashire was part of Cheshire, more exhaustive research indicates that the boundary between Cheshire and what was to become Lancashire remained the River Mersey. With minor variations in spelling across sources, the complete list of hundreds of Cheshire at this time are: Atiscross, Bochelau, Chester, Dudestan, Exestan, Hamestan, Middlewich, Riseton, Roelau, Tunendune, Warmundestrou and Wilaveston.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "There were 8 feudal baronies in Chester, the barons of Kinderton, Halton, Malbank, Mold, Shipbrook, Dunham-Massey, and the honour of Chester itself. Feudal baronies or baronies by tenure were granted by the Earl as forms of feudal land tenure within the palatinate in a similar way to which the king granted English feudal baronies within England proper. An example is the barony of Halton. One of Hugh d'Avranche's barons has been identified as Robert Nicholls, Baron of Halton and Montebourg.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "In 1182, the land north of the Mersey became administered as part of the new county of Lancashire, resolving any uncertainty about the county in which the land \"Inter Ripam et Mersam\" was. Over the years, the ten hundreds consolidated and changed names to leave just seven—Broxton, Bucklow, Eddisbury, Macclesfield, Nantwich, Northwich and Wirral.",
"title": "History"
},
{
"paragraph_id": 12,
"text": "In 1397 the county had lands in the march of Wales added to its territory, and was promoted to the rank of principality. This was because of the support the men of the county had given to King Richard II, in particular by his standing armed force of about 500 men called the \"Cheshire Guard\". As a result, the King's title was changed to \"King of England and France, Lord of Ireland, and Prince of Chester\". No other English county has been honoured in this way, although it lost the distinction on Richard's fall in 1399.",
"title": "History"
},
{
"paragraph_id": 13,
"text": "Through the Local Government Act 1972, which came into effect on 1 April 1974, some areas in the north became part of the metropolitan counties of Greater Manchester and Merseyside. Stockport (previously a county borough), Altrincham, Hyde, Dukinfield and Stalybridge in the north-east became part of Greater Manchester. Much of the Wirral Peninsula in the north-west, including the county boroughs of Birkenhead and Wallasey, joined Merseyside as the Metropolitan Borough of Wirral. At the same time the Tintwistle Rural District was transferred to Derbyshire. The area of south Lancashire not included within either the Merseyside or Greater Manchester counties, including Widnes and the county borough of Warrington, was added to the new non-metropolitan county of Cheshire.",
"title": "History"
},
{
"paragraph_id": 14,
"text": "Halton and Warrington became unitary authorities independent of Cheshire County Council on 1 April 1998, but remain part of Cheshire for ceremonial purposes and also for fire and policing. Halton is part of Liverpool City Region combined authority, which also includes the five metropolitan boroughs of Merseyside.",
"title": "History"
},
{
"paragraph_id": 15,
"text": "A referendum for a further local government reform connected with an elected regional assembly was planned for 2004, but was abandoned.",
"title": "History"
},
{
"paragraph_id": 16,
"text": "As part of the local government restructuring in April 2009, Cheshire County Council and the Cheshire districts were abolished and replaced by two new unitary authorities, Cheshire East and Cheshire West and Chester. The existing unitary authorities of Halton and Warrington were not affected by the change.",
"title": "History"
},
{
"paragraph_id": 17,
"text": "Cheshire has no county-wide elected local council, but it does have a Lord Lieutenant under the Lieutenancies Act 1997 and a High Sheriff under the Sheriffs Act 1887.",
"title": "Governance"
},
{
"paragraph_id": 18,
"text": "Local government functions apart from the Police and Fire/Rescue services are carried out by four smaller unitary authorities: Cheshire East, Cheshire West and Chester, Halton, and Warrington. All four unitary authority areas have borough status.",
"title": "Governance"
},
{
"paragraph_id": 19,
"text": "Policing and fire and rescue services are still provided across the county as a whole. The Cheshire Fire Authority consist of members of the four councils, while governance of Cheshire Constabulary is performed by the elected Cheshire Police and Crime Commissioner.",
"title": "Governance"
},
{
"paragraph_id": 20,
"text": "Winsford is a major administrative hub for Cheshire with the Police and Fire & Rescue Headquarters based in the town as well as a majority of Cheshire West and Chester Council. It was also home to the former Vale Royal Borough Council and Cheshire County Council.",
"title": "Governance"
},
{
"paragraph_id": 21,
"text": "From 1 April 1974 the area under the control of the county council was divided into eight local government districts; Chester, Congleton, Crewe and Nantwich, Ellesmere Port and Neston, Halton, Macclesfield, Vale Royal and Warrington. Halton (which includes the towns of Runcorn and Widnes) and Warrington became unitary authorities in 1998. The remaining districts and the county were abolished as part of local government restructuring on 1 April 2009. The Halton and Warrington boroughs were not affected by the 2009 restructuring.",
"title": "Governance"
},
{
"paragraph_id": 22,
"text": "On 25 July 2007, the Secretary of State Hazel Blears announced she was 'minded' to split Cheshire into two new unitary authorities, Cheshire West and Chester, and Cheshire East. She confirmed she had not changed her mind on 19 December 2007 and therefore the proposal to split two-tier Cheshire into two would proceed. Cheshire County Council leader Paul Findlow, who attempted High Court legal action against the proposal, claimed that splitting Cheshire would only disrupt excellent services while increasing living costs for all. On 31 January 2008 The Standard, Cheshire and district's newspaper, announced that the legal action had been dropped. Members against the proposal were advised that they may be unable to persuade the court that the decision of Hazel Blears was \"manifestly absurd\".",
"title": "Governance"
},
{
"paragraph_id": 23,
"text": "The Cheshire West and Chester unitary authority covers the area formerly occupied by the City of Chester and the boroughs of Ellesmere Port and Neston and Vale Royal; Cheshire East now covers the area formerly occupied by the boroughs of Congleton, Crewe and Nantwich, and Macclesfield. The changes were implemented on 1 April 2009.",
"title": "Governance"
},
{
"paragraph_id": 24,
"text": "Congleton Borough Council pursued an appeal against the judicial review it lost in October 2007. The appeal was dismissed on 4 March 2008.",
"title": "Governance"
},
{
"paragraph_id": 25,
"text": "A plain of glacial till and other glacio-fluvial sediments extends across much of Cheshire, separating the hills of North Wales and the Pennines. Known as the Cheshire Plain, it was formed following the retreat of a Quaternary ice sheet which left the area dotted with kettle holes, those which hold water being referred to as meres. The bedrock of this region is almost entirely Triassic sandstone, outcrops of which have long been quarried, notably at Runcorn, providing the distinctive red stone for Liverpool Cathedral and Chester Cathedral.",
"title": "Geography"
},
{
"paragraph_id": 26,
"text": "The eastern half of the county is Upper Triassic Mercia Mudstone laid down with large salt deposits which were mined for hundreds of years around Winsford. Separating this area from Lower Triassic Sherwood Sandstone to the west is a prominent sandstone ridge known as the Mid Cheshire Ridge. A 55-kilometre (34 mi) footpath, the Sandstone Trail, follows this ridge from Frodsham to Whitchurch passing Delamere Forest, Beeston Castle and earlier Iron Age forts.",
"title": "Geography"
},
{
"paragraph_id": 27,
"text": "The western fringes of the Peak District - the southernmost extent of the Pennine range - form the eastern part of the county. The highest point (county top) in the historic county of Cheshire was Black Hill (582 m (1,909 ft)) near Crowden in the Cheshire Panhandle, a long eastern projection of the county which formerly stretched along the northern side of Longdendale and on the border with the West Riding of Yorkshire. Black Hill is now the highest point in the ceremonial county of West Yorkshire.",
"title": "Geography"
},
{
"paragraph_id": 28,
"text": "Within the current ceremonial county and the unitary authority of Cheshire East the highest point is Shining Tor on the Derbyshire/Cheshire border between Macclesfield and Buxton, at 559 metres (1,834 ft) above sea level. After Shining Tor, the next highest point in Cheshire is Shutlingsloe, at 506 metres (1,660 ft) above sea level. Shutlingsloe lies just to the south of Macclesfield Forest and is sometimes humorously referred to as the \"Matterhorn of Cheshire\" thanks to its distinctive steep profile.",
"title": "Geography"
},
{
"paragraph_id": 29,
"text": "Cheshire contains portions of two green belt areas surrounding the large conurbations of Merseyside and Greater Manchester (North Cheshire Green Belt, part of the North West Green Belt) and Stoke-on-Trent (South Cheshire Green Belt, part of the Stoke-on-Trent Green Belt), these were first drawn up from the 1950s. Contained primarily within Cheshire East and Chester West & Chester, with small portions along the borders of the Halton and Warrington districts, towns and cities such as Chester, Macclesfield, Alsager, Congleton, Northwich, Ellesmere Port, Knutsford, Warrington, Poynton, Disley, Neston, Wilmslow, Runcorn, and Widnes are either surrounded wholly, partially enveloped by, or on the fringes of the belts. The North Cheshire Green Belt is contiguous with the Peak District Park boundary inside Cheshire.",
"title": "Geography"
},
{
"paragraph_id": 30,
"text": "The ceremonial county borders Merseyside, Greater Manchester, Derbyshire, Staffordshire and Shropshire in England along with Flintshire and Wrexham in Wales, arranged by compass directions as shown in the table. below. Cheshire also forms part of the North West England region.",
"title": "Geography"
},
{
"paragraph_id": 31,
"text": "In July 2022, beavers bred in Cheshire for the first time in 400 years, following a reintroduction scheme.",
"title": "Geography"
},
{
"paragraph_id": 32,
"text": "Based on the Census of 2001, the overall population of Cheshire East and Cheshire West and Chester is 673,781, of which 51.3% of the population were male and 48.7% were female. Of those aged between 0–14 years, 51.5% were male and 48.4% were female; and of those aged over 75 years, 62.9% were female and 37.1% were male. This increased to 699,735 at the 2011 Census. The population for 2021 is forecast to be 708,000.",
"title": "Demography"
},
{
"paragraph_id": 33,
"text": "In 2001, the population density of Cheshire East and Cheshire West and Chester was 32 people per km, lower than the North West average of 42 people/km and the England and Wales average of 38 people/km. Ellesmere Port and Neston had a greater urban density than the rest of the county with 92 people/km.",
"title": "Demography"
},
{
"paragraph_id": 34,
"text": "In 2001, ethnic white groups accounted for 98% (662,794) of the population, and 10,994 (2%) in ethnic groups other than white.",
"title": "Demography"
},
{
"paragraph_id": 35,
"text": "Of the 2% in non-white ethnic groups:",
"title": "Demography"
},
{
"paragraph_id": 36,
"text": "In the 2001 Census, 81% of the population (542,413) identified themselves as Christian; 124,677 (19%) did not identify with any religion or did not answer the question; 5,665 (1%) identified themselves as belonging to other major world religions; and 1,033 belonged to other religions.",
"title": "Religion"
},
{
"paragraph_id": 37,
"text": "The boundary of the Church of England Diocese of Chester follows most closely the pre-1974 county boundary of Cheshire, so it includes all of Wirral, Stockport, and the Cheshire panhandle that included Tintwistle Rural District council area. In terms of Roman Catholic church administration, most of Cheshire falls into the Roman Catholic Diocese of Shrewsbury.",
"title": "Religion"
},
{
"paragraph_id": 38,
"text": "Cheshire has a diverse economy with significant sectors including agriculture, automotive, bio-technology, chemical, financial services, food and drink, ICT, and tourism. The county is famous for the production of Cheshire cheese, salt and silk. The county has seen a number of inventions and firsts in its history.",
"title": "Economy"
},
{
"paragraph_id": 39,
"text": "A mainly rural county, Cheshire has a high concentration of villages. Agriculture is generally based on the dairy trade, and cattle are the predominant livestock. Land use given to agriculture has fluctuated somewhat, and in 2005 totalled 1558 km over 4,609 holdings. Based on holdings by EC farm type in 2005, 8.51 km was allocated to dairy farming, with another 11.78 km allocated to cattle and sheep.",
"title": "Economy"
},
{
"paragraph_id": 40,
"text": "The chemical industry in Cheshire was founded in Roman times, with the mining of salt in Middlewich and Northwich. Salt is still mined in the area by British Salt. The salt mining has led to a continued chemical industry around Northwich, with Brunner Mond based in the town. Other chemical companies, including Ineos (formerly ICI), have plants at Runcorn. The Essar Refinery (formerly Shell Stanlow Refinery) is at Ellesmere Port. The oil refinery has operated since 1924 and has a capacity of 12 million tonnes per year.",
"title": "Economy"
},
{
"paragraph_id": 41,
"text": "Crewe was once the centre of the British railway industry, and remains a major railway junction. The Crewe railway works, built in 1840, employed 20,000 people at its peak, although the workforce is now less than 1,000. Crewe is also the home of Bentley cars. Also within Cheshire are manufacturing plants for Jaguar and Vauxhall Motors in Ellesmere Port.",
"title": "Economy"
},
{
"paragraph_id": 42,
"text": "The county also has an aircraft industry, with the BAE Systems facility at Woodford Aerodrome, part of BAE System's Military Air Solutions division. The facility designed and constructed Avro Lancaster and Avro Vulcan bombers and the Hawker-Siddeley Nimrod. On the Cheshire border with Flintshire is the Broughton aircraft factory, more recently associated with Airbus.",
"title": "Economy"
},
{
"paragraph_id": 43,
"text": "Tourism in Cheshire from within the UK and overseas continues to perform strongly. Over 8 million nights of accommodation (both UK and overseas) and over 2.8 million visits to Cheshire were recorded during 2003.",
"title": "Economy"
},
{
"paragraph_id": 44,
"text": "At the start of 2003, there were 22,020 VAT-registered enterprises in Cheshire, an increase of 7% since 1998, many in the business services (31.9%) and wholesale/retail (21.7%) sectors. Between 2002 and 2003 the number of businesses grew in four sectors: public administration and other services (6.0%), hotels and restaurants (5.1%), construction (1.7%), and business services (1.0%). The county saw the largest proportional reduction between 2001 and 2002 in employment in the energy and water sector and there was also a significant reduction in the manufacturing sector. The largest growth during this period was in the other services and distribution, hotels and retail sectors.",
"title": "Economy"
},
{
"paragraph_id": 45,
"text": "Cheshire is considered to be an affluent county. However, towns such as Crewe and Winsford have significant deprivation. The county's proximity to the cities of Manchester and Liverpool means counter urbanisation is common. Cheshire West has a fairly large proportion of residents who work in Liverpool and Manchester, while the town of Northwich and area of Cheshire East falls more within Manchester's sphere of influence.",
"title": "Economy"
},
{
"paragraph_id": 46,
"text": "All four local education authorities in Cheshire operate only comprehensive state school systems. When Altrincham, Sale and Bebington were moved from Cheshire to Trafford and Merseyside in 1974, they took some former Cheshire selective schools. There are two universities based in the county, the University of Chester and the Chester campus of The University of Law. The Crewe campus of Manchester Metropolitan University was scheduled to close in 2019.",
"title": "Education"
},
{
"paragraph_id": 47,
"text": "Cheshire has produced musicians such as Joy Division members Ian Curtis and Stephen Morris, One Direction member Harry Styles, the members of The 1975, Take That member Gary Barlow, The Cult member Ian Astbury, Catfish and the Bottlemen member Van McCann, Girls Aloud member Nicola Roberts, Stephen Hough, John Mayall, The Charlatans member Tim Burgess, and Nigel Stonier.",
"title": "Culture"
},
{
"paragraph_id": 48,
"text": "Actors from Cheshire include Russ Abbot, Warren Brown, Julia Chan, Ray Coulthard, Daniel Craig, Tim Curry, Wendy Hiller, Tom Hughes, Tim McInnerny, Ben Miller, Pete Postlethwaite, Adam Rickitt, John Steiner, and Ann Todd. The most famous author from the county is Lewis Carroll, who wrote Alice's Adventures in Wonderland and named the Cheshire Cat character after it. Other notable Cheshire writers include Hall Caine, Alan Garner, and Elizabeth Gaskell. Artists from Cheshire include ceramic artist Emma Bossons and sculptor/photographer Andy Goldsworthy.",
"title": "Culture"
},
{
"paragraph_id": 49,
"text": "Local news and television programmes are provided by BBC North West and ITV Granada. Television signals are received from the Winter Hill TV transmitter.",
"title": "Culture"
},
{
"paragraph_id": 50,
"text": "Local radio stations in the county include Chester's Dee Radio, Capital North West and Wales, Smooth Wales, Cheshire's Silk 106.9 and Signal 1. It is one of only four counties in the country (along with County Durham, Dorset, and Rutland) that does not have its own designated BBC radio station; the south and parts of the east are covered by BBC Radio Stoke, while BBC Radio Merseyside tends to cover the west, and BBC Radio Manchester covers the north and parts of the east. The BBC directs readers to Stoke and Staffordshire when Cheshire is selected on their website. There were plans to launch BBC Radio Cheshire, but those were shelved in 2007 after the BBC license fee settlement was lower than expected.",
"title": "Culture"
},
{
"paragraph_id": 51,
"text": "Athletes native to Cheshire include sailor Ben Ainslie, cricketer Ian Botham, rock climber Shauna Coxsey, boxer Tyson Fury, oarsman Matt Langridge, mountaineer George Mallory, marathon runner Paula Radcliffe, cyclist Sarah Storey, and hurdler Shirley Strong. It has also been home to numerous athletes from outside the county. Many Premier League footballers have relocated there over the years upon joining nearby teams such as Manchester United FC, Manchester City FC, Everton FC, and Liverpool FC. These include Dean Ashton, Seth Johnson, Jesse Lingard, Michael Owen, and Wayne Rooney. The \"Cheshire Golden Triangle\" is the collective name for a group of adjacent Cheshire villages where the amount of footballers, actors, and entrepreneurs moving in over the years led to the average house prices becoming some of the most expensive in the UK.",
"title": "Culture"
},
{
"paragraph_id": 52,
"text": "Cheshire has one Football League team, Crewe Alexandra, which plays in League One. Chester F.C., a phoenix club formed in 2010 after ex-Football League club Chester City was dissolved, competes in the National League North. Northwich Victoria, another ex-League team which was a founding member of the Football League Division Two in 1892/1893, now represents Cheshire in the Northern Premier League along with Nantwich Town, Warrington Town, and Witton Albion. Macclesfield Town another former League club, went into liquidation in 2020; a phoenix club, Macclesfield F.C., was formed in 2021.",
"title": "Culture"
},
{
"paragraph_id": 53,
"text": "The Warrington Wolves and Widnes Vikings are the premier rugby league teams in Cheshire; the former plays in the Super League, while the latter plays in the Championship. There are also numerous junior clubs in the county, including Chester Gladiators. Cheshire County Cricket Club is one of the clubs that make up the minor counties of English and Welsh cricket. Cheshire also is represented in the highest level basketball league in the UK, the BBL, by Cheshire Phoenix (formerly Cheshire Jets). Europe's largest motorcycle event, the Thundersprint, is held in Northwich every May.",
"title": "Culture"
},
{
"paragraph_id": 54,
"text": "The Royal Cheshire Show, an annual agricultural show, has taken place since the 1800s.",
"title": "Culture"
},
{
"paragraph_id": 55,
"text": "Cheshire also produced a military hero in Norman Cyril Jones, a World War I flying ace who won the Distinguished Flying Cross.",
"title": "Culture"
},
{
"paragraph_id": 56,
"text": "As part of a 2002 marketing campaign, the plant conservation charity Plantlife chose the cuckooflower as the county flower. Previously, a sheaf of golden wheat was the county emblem, a reference to the Earl of Chester's arms in use from the 12th century.",
"title": "Culture"
},
{
"paragraph_id": 57,
"text": "Prehistoric burial grounds have been discovered at The Bridestones near Congleton (Neolithic) and Robin Hood's Tump near Alpraham (Bronze Age). The remains of Iron Age hill forts are found on sandstone ridges at several locations in Cheshire. Examples include Maiden Castle on Bickerton Hill, Helsby Hillfort and Woodhouse Hillfort at Frodsham. The Roman fortress and walls of Chester, perhaps the earliest building works in Cheshire remaining above ground, are constructed from purple-grey sandstone.",
"title": "Culture"
},
{
"paragraph_id": 58,
"text": "The distinctive local red sandstone has been used for many monumental and ecclesiastical buildings throughout the county: for example, the medieval Beeston Castle, Chester Cathedral and numerous parish churches. Occasional residential and industrial buildings, such as Helsby railway station (1849), are also in this sandstone.",
"title": "Culture"
},
{
"paragraph_id": 59,
"text": "Many surviving buildings from the 15th to 17th centuries are timbered, particularly in the southern part of the county. Notable examples include the moated manor house Little Moreton Hall, dating from around 1450, and many commercial and residential buildings in Chester, Nantwich and surrounding villages.",
"title": "Culture"
},
{
"paragraph_id": 60,
"text": "Early brick buildings include Peover Hall near Macclesfield (1585), Tattenhall Hall (pre-1622), and the Pied Bull Hotel in Chester (17th-century). From the 18th century, orange, red or brown brick became the predominant building material used in Cheshire, although earlier buildings are often faced or dressed with stone. Examples from the Victorian period onwards often employ distinctive brick detailing, such as brick patterning and ornate chimney stacks and gables. Notable examples include Arley Hall near Northwich, Willington Hall near Chester (both by Nantwich architect George Latham) and Overleigh Lodge, Chester. From the Victorian era, brick buildings often incorporate timberwork in a mock Tudor style, and this hybrid style has been used in some modern residential developments in the county. Industrial buildings, such as the Macclesfield silk mills (for example, Waters Green New Mill), are also usually in brick.",
"title": "Culture"
},
{
"paragraph_id": 61,
"text": "The county is home to some of the most affluent areas of northern England, including Alderley Edge, Wilmslow, Prestbury, Tarporley and Knutsford, named in 2006 as the most expensive place to buy a house in the north of England. The former Cheshire town of Altrincham was in second place. The area is sometimes referred to as The Golden Triangle on account of the area in and around the aforementioned towns and villages.",
"title": "Settlements"
},
{
"paragraph_id": 62,
"text": "The cities and towns in Cheshire are:",
"title": "Settlements"
},
{
"paragraph_id": 63,
"text": "Some settlements which were historically part of the county now fall under the counties of Derbyshire, Merseyside and Greater Manchester:",
"title": "Settlements"
},
{
"paragraph_id": 64,
"text": "The main railway line through the county is the West Coast Main Line. Trains on the main London to Scotland line call at Crewe (in the south of the county) and Warrington Bank Quay (in the north of the county). Trains stop at Crewe and Runcorn on the Liverpool branch of the WCML; Crewe and Macclesfield are each hourly stops on the two Manchester branches. The major interchanges are:",
"title": "Transport"
},
{
"paragraph_id": 65,
"text": "In the east of Cheshire, Macclesfield station is served by Avanti West Coast, CrossCountry and Northern, on the Manchester–London line. Services from Manchester to the south coast frequently stop at Macclesfield. Neston on the Wirral Peninsula is served by a railway station on the Borderlands line between Bidston and Wrexham.",
"title": "Transport"
},
{
"paragraph_id": 66,
"text": "Cheshire has 3,417 miles (5,499 km) of roads, including 214 miles (344 km) of the M6, M62, M53 and M56 motorways; there are 23 interchanges and four service areas. It also has the A580 \"East Lancashire Road\" at its border with Greater Manchester at Leigh. The M6 motorway at the Thelwall Viaduct carries 140,000 vehicles every 24 hours.",
"title": "Transport"
},
{
"paragraph_id": 67,
"text": "Bus transport in Cheshire is provided by various operators. The major bus operator in the Cheshire area is D&G Bus. Other operators in Cheshire include Stagecoach Chester & Wirral and Network Warrington.",
"title": "Transport"
},
{
"paragraph_id": 68,
"text": "There are also several operators based outside of Cheshire, who either run services wholly within the area or services which start from outside the area. Companies include Arriva Buses Wales, Aimee's Travel, High Peak, First Greater Manchester, D&G bus and Stagecoach Manchester.",
"title": "Transport"
},
{
"paragraph_id": 69,
"text": "Some services are run under contract to Cheshire West and Chester, Cheshire East, Borough of Halton and Warrington Councils.",
"title": "Transport"
},
{
"paragraph_id": 70,
"text": "The Cheshire canal system includes several canals originally used to transport the county's industrial products (mostly chemicals). Nowadays they are mainly used for tourist traffic. The Cheshire Ring is formed from the Rochdale, Ashton, Peak Forest, Macclesfield, Trent and Mersey and Bridgewater canals.",
"title": "Transport"
},
{
"paragraph_id": 71,
"text": "The Manchester Ship Canal is a wide, 36-mile (58 km) stretch of water opened in 1894. It consists of the rivers Irwell and Mersey made navigable to Manchester for seagoing ships leaving the Mersey estuary. The canal passes through the north of the county via Runcorn and Warrington. Rivers and canals in the county are:",
"title": "Transport"
}
] | Cheshire is a ceremonial county in North West England. It is bordered by Merseyside to the north-west, Greater Manchester to the north-east, Derbyshire to the east, Staffordshire to the south-east, and Shropshire to the south; to the west it is bordered by the Welsh counties of Flintshire and Wrexham, and has a short coastline on the Dee Estuary. Warrington is the largest settlement, and the city of Chester is the county town. The county has an area of 905 square miles (2,344 km2) and had a population of 1,095,500 at the 2021 census. After Warrington (212,000), the largest settlements are Chester (86,011) and Crewe (71,722). The south and east of the county are primarily rural, while the north is more densely populated and includes the settlements of Runcorn, Widnes, and Ellesmere Port. For local government purposes Cheshire comprises four unitary authority areas: Cheshire East, Cheshire West and Chester, Halton, and Warrington. The county historically included all of the Wirral Peninsula and southern Greater Manchester but excluded Widnes and Warrington, which were part of Lancashire. The landscape of the county is dominated by the Cheshire Plain, an area of relatively flat land divided by the Mid-Cheshire Ridge. To the west, Cheshire contains the south of the Wirral Peninsula, and to the east the landscape rises to the Pennines, where the county contains part of the Peak District National Park. The River Mersey runs through the north of Cheshire before broadening into its wide estuary; the River Dee forms part of the county's border with Wales, then fully enters England and flows through the city of Chester before re-entering Wales upstream of its estuary. Red Triassic sandstone forms the bedrock of much of the county, and was used in the construction of many of its buildings. The culture of Cheshire has impacted global pop culture by producing actors such as Daniel Craig, Tim Curry, and Pete Postlethwaite; athletes such as Shauna Coxsey, Tyson Fury, and Paula Radcliffe; authors such as Lewis Carroll; comedians such as John Bishop and Ben Miller, and musicians such as Gary Barlow, Ian Curtis, and Harry Styles. Most places are involved in agriculture and chemistry, leading to Cheshire's reputation for the production of chemicals, Cheshire cheese, salt, and silk. | 2001-12-10T14:59:36Z | 2023-12-28T10:40:17Z | [
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7,407 | County town | In Great Britain and Ireland, a county town is the most important town or city in a county. It is usually the location of administrative or judicial functions within a county, and the place where public representatives are elected to parliament. Following the establishment of county councils in England 1889, the headquarters of the new councils were usually established in the county town of each county; however, the concept of a county town pre-dates these councils.
The concept of a county town is ill-defined and unofficial. Some counties in Great Britain have their administrative bodies housed elsewhere. For example, Lancaster is the county town of Lancashire, but the county council is in Preston. Some county towns in Great Britain are no longer within the administrative county because of changes in the county's boundaries. For example, Nottingham is administered by a unitary authority separately from the rest of Nottinghamshire.
This list shows towns or cities which held county functions at various points in time.
Following the Norman invasion of Wales, the Cambro-Normans created the historic shire system (also known as ancient counties). Many of these counties were named for the centre of Norman power within the new county (Caernarfonshire named for Caernarfon, Monmouthshire named for Monmouth) others were named after the previous medieval Welsh kingdoms (Ceredigon becomes Cardigan, Morgannwg becomes Glamorgan). The 1535 Laws in Wales Act established the historic counties in English law, but in Wales they were later replaced with eight preserved counties for ceremonial purposes and the twenty two principal areas are used for administrative purposes. Neither of these subdivisions use official county towns, although their administrative headquarters and ceremonial centres are often located in the historic county town.
With the creation of elected county councils in 1889, the administrative headquarters in some cases moved away from the traditional county town. Furthermore, in 1965 and 1974 there were major boundary changes in England and Wales and administrative counties were replaced with new metropolitan and non-metropolitan counties. The boundaries underwent further alterations between 1995 and 1998 to create unitary authorities, and some of the ancient counties and county towns were restored. (Note: not all headquarters are or were called County Halls or Shire Halls e.g.: Cumbria County Council's HQ up until 2016 was called The Courts and has since moved to Cumbria House.) Before 1974, many of the county halls were in towns and cities that had the status of a county borough i.e. a borough outside the county council's jurisdiction.
The follow lists the location of the administration of each of the 31 local authorities in the Republic of Ireland, with 26 of the traditional counties.
Note – Despite the fact that Belfast is the capital of Northern Ireland, it is not the county town of any county. Greater Belfast straddles two counties – Antrim and Down.
Jamaica's three counties were established in 1758 to facilitate the holding of courts along the lines of the British county court system, with each county having a county town. The counties have no current administrative relevance. | [
{
"paragraph_id": 0,
"text": "In Great Britain and Ireland, a county town is the most important town or city in a county. It is usually the location of administrative or judicial functions within a county, and the place where public representatives are elected to parliament. Following the establishment of county councils in England 1889, the headquarters of the new councils were usually established in the county town of each county; however, the concept of a county town pre-dates these councils.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The concept of a county town is ill-defined and unofficial. Some counties in Great Britain have their administrative bodies housed elsewhere. For example, Lancaster is the county town of Lancashire, but the county council is in Preston. Some county towns in Great Britain are no longer within the administrative county because of changes in the county's boundaries. For example, Nottingham is administered by a unitary authority separately from the rest of Nottinghamshire.",
"title": ""
},
{
"paragraph_id": 2,
"text": "This list shows towns or cities which held county functions at various points in time.",
"title": "Great Britain, historic"
},
{
"paragraph_id": 3,
"text": "Following the Norman invasion of Wales, the Cambro-Normans created the historic shire system (also known as ancient counties). Many of these counties were named for the centre of Norman power within the new county (Caernarfonshire named for Caernarfon, Monmouthshire named for Monmouth) others were named after the previous medieval Welsh kingdoms (Ceredigon becomes Cardigan, Morgannwg becomes Glamorgan). The 1535 Laws in Wales Act established the historic counties in English law, but in Wales they were later replaced with eight preserved counties for ceremonial purposes and the twenty two principal areas are used for administrative purposes. Neither of these subdivisions use official county towns, although their administrative headquarters and ceremonial centres are often located in the historic county town.",
"title": "Great Britain, historic"
},
{
"paragraph_id": 4,
"text": "With the creation of elected county councils in 1889, the administrative headquarters in some cases moved away from the traditional county town. Furthermore, in 1965 and 1974 there were major boundary changes in England and Wales and administrative counties were replaced with new metropolitan and non-metropolitan counties. The boundaries underwent further alterations between 1995 and 1998 to create unitary authorities, and some of the ancient counties and county towns were restored. (Note: not all headquarters are or were called County Halls or Shire Halls e.g.: Cumbria County Council's HQ up until 2016 was called The Courts and has since moved to Cumbria House.) Before 1974, many of the county halls were in towns and cities that had the status of a county borough i.e. a borough outside the county council's jurisdiction.",
"title": "Great Britain, post 19th-century reforms"
},
{
"paragraph_id": 5,
"text": "The follow lists the location of the administration of each of the 31 local authorities in the Republic of Ireland, with 26 of the traditional counties.",
"title": "Ireland"
},
{
"paragraph_id": 6,
"text": "Note – Despite the fact that Belfast is the capital of Northern Ireland, it is not the county town of any county. Greater Belfast straddles two counties – Antrim and Down.",
"title": "Ireland"
},
{
"paragraph_id": 7,
"text": "Jamaica's three counties were established in 1758 to facilitate the holding of courts along the lines of the British county court system, with each county having a county town. The counties have no current administrative relevance.",
"title": "Jamaica"
}
] | In Great Britain and Ireland, a county town is the most important town or city in a county. It is usually the location of administrative or judicial functions within a county, and the place where public representatives are elected to parliament. Following the establishment of county councils in England 1889, the headquarters of the new councils were usually established in the county town of each county; however, the concept of a county town pre-dates these councils. The concept of a county town is ill-defined and unofficial. Some counties in Great Britain have their administrative bodies housed elsewhere. For example, Lancaster is the county town of Lancashire, but the county council is in Preston. Some county towns in Great Britain are no longer within the administrative county because of changes in the county's boundaries. For example, Nottingham is administered by a unitary authority separately from the rest of Nottinghamshire. | 2001-12-10T15:05:40Z | 2023-12-06T17:50:50Z | [
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7,411 | Constitution of Canada | The Constitution of Canada (French: Constitution du Canada) is the supreme law in Canada. It outlines Canada's system of government and the civil and human rights of those who are citizens of Canada and non-citizens in Canada. Its contents are an amalgamation of various codified acts, treaties between the Crown and Indigenous Peoples (both historical and modern), uncodified traditions and conventions. Canada is one of the oldest constitutional monarchies in the world.
According to subsection 52(2) of the Constitution Act, 1982, the Canadian Constitution consists of the Canada Act 1982 (which includes the Constitution Act, 1982), acts and orders referred to in its schedule (including in particular the Constitution Act, 1867, formerly the British North America Act, 1867), and any amendments to these documents. The Supreme Court of Canada has held that the list is not exhaustive and also includes a number of pre-confederation acts and unwritten components as well. See list of Canadian constitutional documents for details.
The first semblance of a constitution for Canada was the Royal Proclamation of 1763. The act renamed the northeasterly portion of the former French province of New France as Province of Quebec, roughly coextensive with the southern third of contemporary Quebec. The proclamation, which established an appointed colonial government, was the constitution of Quebec until 1774 when the British parliament passed the Quebec Act, which expanded the province's boundaries to the Ohio and Mississippi Rivers (one of the grievances listed in the United States Declaration of Independence). Significantly, the Quebec Act also replaced French criminal law with the English common law system; but the French civil law system was retained for non-criminal matters.
The Treaty of Paris of 1783 ended the American War of Independence and sent a wave of British loyalist refugees northward to Quebec and Nova Scotia. In 1784, the two provinces were divided: Nova Scotia was split into Nova Scotia, Cape Breton Island (rejoined to Nova Scotia in 1820), Prince Edward Island, and New Brunswick, while Quebec was split into Lower Canada (southern Quebec) and Upper Canada (southern through lower northern Ontario). The winter of 1837–38 saw rebellion in both Canadas, contributing to their re-union as the Province of Canada in 1841.
The British North America Act, 1867 established the Dominion of Canada as a federation of provinces. Initially, on 1 July 1867, four provinces entered into confederation as "One dominion under the name of Canada": Canada West (former Upper Canada, now Ontario), Canada East (former Lower Canada, now Quebec), Nova Scotia, and New Brunswick. Title to the Northwest Territories was transferred by the Hudson's Bay Company in 1870, out of which the province of Manitoba (the first to be established by the Parliament of Canada) was created. British Columbia joined Confederation in 1871, followed by Prince Edward Island in 1873. The Yukon Territory was created by Parliament in 1898, followed by Alberta and Saskatchewan in 1905 (all out of parts of the Northwest Territories). Newfoundland, Britain's oldest colony in the Americas and by then also a Dominion, joined Confederation in 1949. Nunavut was created in 1999 from the Northwest Territories.
An Imperial Conference in 1926 that included the leaders of all Dominions and representatives from India (which then included Burma, Bangladesh, and Pakistan), led to the eventual enactment of the Statute of Westminster 1931. The statute, an essential transitory step from the British Empire to the Commonwealth of Nations, provided that existing Dominions became fully sovereign of the United Kingdom and any new Dominions would be fully sovereign upon the grant of Dominion status. Although listed, Newfoundland never ratified the statute so was still subject to imperial authority when its entire system of government and economy collapsed in the mid-1930s. Canada did ratify the statute but with a requested exception—the Canadian federal and provincial governments could not agree on an amending formula for the Canadian constitution. It would be another 50 years before this was achieved. In the interim, the British parliament periodically passed constitutional amendments when requested by the government of Canada. This was never anything but a rubber stamp.
The patriation of the Canadian constitution was achieved in 1982 when the British parliament, with the request and assent of the Canadian parliament, passed the Canada Act 1982, which included in its schedules the Constitution Act, 1982. The United Kingdom thus renounced any remaining responsibility for, or jurisdiction over, Canada. In a formal ceremony on Parliament Hill in Ottawa, Queen Elizabeth II proclaimed the Constitution Act, 1982 into law on 17 April 1982.
The Constitution Act, 1982, includes the Canadian Charter of Rights and Freedoms. Before the Charter, various statutes protected an assortment of civil rights and obligations but nothing was enshrined in the constitution until 1982. The Charter has thus placed a strong focus upon individual and collective rights of the people of Canada. The enactment of the Charter of Rights and Freedoms has fundamentally changed much of Canadian constitutional law. The act also codified many previously oral constitutional conventions and made amendment of the constitution in general significantly more difficult. Previously, the Canadian constitution could be formally amended by an act of the British parliament, or by informal agreement between the federal and provincial governments, or even simply by adoption as the custom of an oral convention or performance that shows precedential but unwritten tradition. Since the act, textual amendments must now conform to certain specified provisions in the written portion of the Canadian constitution.
This was an Act of the British parliament, originally called the British North America Act, 1867. It outlined Canada's system of government, which combines Britain's Westminster model of parliamentary government with the division of sovereignty (federalism). Although it is the first of 20 British North America Acts, it is the most famous as the primary document of Canadian Confederation. With the patriation of the Constitution in 1982, this Act was renamed Constitution Act, 1867. In recent years, the 1867 document has mainly served as the basis on which the division of powers between the provinces and the federal government is analyzed.
Endorsed by all provincial governments except that of Quebec, this was the formal Act of Parliament that effected Canada's full legislative independence from the United Kingdom. Part V of this act established an amending formula for the Canadian constitution, the lack of which (due to more than 50 years of disagreement between the federal and provincial governments) meant Canada's constitutional amendments still required enactment by the British parliament after Statute of Westminster in 1931.
The Constitution Act, 1982 was enacted as a schedule to the Canada Act 1982, a British Act of Parliament which was introduced at the request of a joint address to Queen Elizabeth II by the Senate and House of Commons of Canada. The version of the Canada Act 1982 which is in force in Britain is in English only, but the version of the act in force in Canada is bilingual, English and French. In addition to enacting the Constitution Act, 1982, the Canada Act 1982 provides that no further British acts of Parliament will apply to Canada as part of its law, finalizing Canada's legislative independence.
As noted above, this is Part I of the Constitution Act, 1982. The Charter is the constitutional guarantee of the civil rights and liberties of every citizen in Canada, such as freedom of expression, of religion, and of mobility. Part II addresses the rights of Aboriginal peoples in Canada.
It is written in plain language to ensure accessibility to the average citizen. It applies only to government and government actions to prevent the government from creating unconstitutional laws.
Instead of the usual parliamentary procedure, which includes the monarch's formal royal assent for enacting legislation, amendments to the Constitution Act, 1982, must be done in accordance with Part V of the Constitution Act, 1982, which provides for five different amending formulae. Amendments can be brought forward under section 46(1) by any province or the federal legislature. The general formula set out in section 38(1), known as the "7/50 formula", requires: (a) assent from both the House of Commons and the Senate; (b) the approval of two-thirds of the provincial legislatures (at least seven provinces) representing at least 50 per cent of the population (effectively, this would include at least Quebec or Ontario, as they are the most populous provinces). This formula specifically applies to amendments related to the proportionate representation in Parliament, powers, selection, and composition of the Senate, the Supreme Court and the addition of provinces or territories.
The other amendment formulae are for particular cases as provided by the act. An amendment related to the Office of the King, the use of either official language (subject to section 43), the amending formula itself, or the composition of the Supreme Court, must be adopted by unanimous consent of all the provinces in accordance with section 41. In the case of an amendment related to provincial boundaries or the use of an official language within a province alone, the amendment must be passed by the legislatures affected by the amendment (section 43). In the case of an amendment that affects the federal government only, the amendment does not need the approval of the provinces (section 44). The same applies to amendments affecting the provincial government alone (section 45).
Canada's constitution has roots going back to the thirteenth century, including England's Magna Carta and the first English Parliament of 1275. Canada's constitution is composed of several individual statutes. There are three general methods by which a statute becomes entrenched in the Constitution:
The existence of unwritten constitutional components was reaffirmed in 1998 by the Supreme Court in Reference re Secession of Quebec.
The Constitution is more than a written text. It embraces the entire global system of rules and principles which govern the exercise of constitutional authority. A superficial reading of selected provisions of the written constitutional enactment, without more, may be misleading.
In practice, there have been three sources of unwritten constitutional law:
Unlike in most federations, Canadian provinces do not have written provincial constitutions. Provincial constitutions are instead a combination of uncodified constitution, provisions of the Constitution of Canada, and provincial statutes.
Overall structures of provincial governments (like the legislature and cabinet) are described in parts of the Constitution of Canada. Governmental structure of the original four provinces are described in Part V of the Constitution Act, 1867. The three colonies that joined Canada after Confederation had existing UK legislation which described their governmental structure, and this was affirmed in each colony's Terms of Union, which now form part of Canada's Constitution. The remaining three provinces were created by federal statute. Their constitutional structures are described in those statutes, which now form part of Canada's Constitution.
All provinces have enacted legislation that establishes other rules for the structure of government. For example, every province (and territory) has an act governing elections to the legislature, and another governing procedure in the legislature. Two provinces have explicitly listed such acts as being part of their provincial constitution; see Constitution of Quebec and Constitution Act (British Columbia). However, these acts do not, generally, supersede other legislation and do not require special procedures to amend, and so they function as regular statutes rather than constitutional statutes.
A small number of non-constitutional provincial laws do supersede all other provincial legislation, as a constitution would. This is referred to as quasi-constitutionality. Quasi-constitutionality is often applied to human rights laws, allowing those laws to act as a de facto constitutional charter of rights. For example, laws preventing discrimination in employment, housing, and services have clauses making them quasi-constitutional in ten of thirteen jurisdictions.
Section 45 of the Constitution Act, 1982 allows each province to amend its own constitution. This applies, for example, to provincial statute laws like Constitution of Quebec and Constitution Act (British Columbia). However, if the desired change would require an amendment to any documents that form part of the Constitution of Canada, it would require the consent of the Senate and House of Commons under section 43. This was done, for example, by the Constitution Amendment, 1998, when Newfoundland asked the federal government to amend the Terms of Union of Newfoundland to allow it to end denominational quotas for religion classes.
Three amendments to provincial constitutions in the 2020s have been controversially framed as amendments to the Constitution Act 1867. These are Quebec statutes purporting to add sections 90Q and 128Q and a Saskatchewan statute purporting to add section 90S. Because the Senate and House of Commons did not authorise these amendments, they would only have effect if they are amendments to provincial constitutions under the section 45 amending procedure. Constitutional scholars are divided on the validity of an amendment to a provincial constitution framed as an addition to part of the Constitution of Canada.
A small number of statutes within provincial constitutions cannot be amended by a simple majority of the legislative assembly, despite section 45. For example, section 7 of the Constitution of Alberta Amendment Act, 1990 requires plebiscites of Metis settlement members before that Act can be amended. Courts have not yet ruled about whether this kind of language really would bind future legislatures, but it might do so if the higher bar was met when creating the law.
In 1983, Peter Greyson, an art student, entered Ottawa's National Archives (known today as Library and Archives Canada) and poured red paint mixed with glue over a copy of the proclamation of the 1982 constitutional amendment. He said he was displeased with the federal government's decision to allow United States missile testing in Canada and had wanted to "graphically illustrate to Canadians" how wrong he believed the government to be. Greyson was charged with public mischief and sentenced to 89 days in jail, 100 hours of community work, and two years of probation. A grapefruit-sized stain remains on the original document; restoration specialists opted to leave most of the paint intact, fearing that removal attempts would only cause further damage. | [
{
"paragraph_id": 0,
"text": "The Constitution of Canada (French: Constitution du Canada) is the supreme law in Canada. It outlines Canada's system of government and the civil and human rights of those who are citizens of Canada and non-citizens in Canada. Its contents are an amalgamation of various codified acts, treaties between the Crown and Indigenous Peoples (both historical and modern), uncodified traditions and conventions. Canada is one of the oldest constitutional monarchies in the world.",
"title": ""
},
{
"paragraph_id": 1,
"text": "According to subsection 52(2) of the Constitution Act, 1982, the Canadian Constitution consists of the Canada Act 1982 (which includes the Constitution Act, 1982), acts and orders referred to in its schedule (including in particular the Constitution Act, 1867, formerly the British North America Act, 1867), and any amendments to these documents. The Supreme Court of Canada has held that the list is not exhaustive and also includes a number of pre-confederation acts and unwritten components as well. See list of Canadian constitutional documents for details.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The first semblance of a constitution for Canada was the Royal Proclamation of 1763. The act renamed the northeasterly portion of the former French province of New France as Province of Quebec, roughly coextensive with the southern third of contemporary Quebec. The proclamation, which established an appointed colonial government, was the constitution of Quebec until 1774 when the British parliament passed the Quebec Act, which expanded the province's boundaries to the Ohio and Mississippi Rivers (one of the grievances listed in the United States Declaration of Independence). Significantly, the Quebec Act also replaced French criminal law with the English common law system; but the French civil law system was retained for non-criminal matters.",
"title": "History of the constitution"
},
{
"paragraph_id": 3,
"text": "The Treaty of Paris of 1783 ended the American War of Independence and sent a wave of British loyalist refugees northward to Quebec and Nova Scotia. In 1784, the two provinces were divided: Nova Scotia was split into Nova Scotia, Cape Breton Island (rejoined to Nova Scotia in 1820), Prince Edward Island, and New Brunswick, while Quebec was split into Lower Canada (southern Quebec) and Upper Canada (southern through lower northern Ontario). The winter of 1837–38 saw rebellion in both Canadas, contributing to their re-union as the Province of Canada in 1841.",
"title": "History of the constitution"
},
{
"paragraph_id": 4,
"text": "The British North America Act, 1867 established the Dominion of Canada as a federation of provinces. Initially, on 1 July 1867, four provinces entered into confederation as \"One dominion under the name of Canada\": Canada West (former Upper Canada, now Ontario), Canada East (former Lower Canada, now Quebec), Nova Scotia, and New Brunswick. Title to the Northwest Territories was transferred by the Hudson's Bay Company in 1870, out of which the province of Manitoba (the first to be established by the Parliament of Canada) was created. British Columbia joined Confederation in 1871, followed by Prince Edward Island in 1873. The Yukon Territory was created by Parliament in 1898, followed by Alberta and Saskatchewan in 1905 (all out of parts of the Northwest Territories). Newfoundland, Britain's oldest colony in the Americas and by then also a Dominion, joined Confederation in 1949. Nunavut was created in 1999 from the Northwest Territories.",
"title": "History of the constitution"
},
{
"paragraph_id": 5,
"text": "An Imperial Conference in 1926 that included the leaders of all Dominions and representatives from India (which then included Burma, Bangladesh, and Pakistan), led to the eventual enactment of the Statute of Westminster 1931. The statute, an essential transitory step from the British Empire to the Commonwealth of Nations, provided that existing Dominions became fully sovereign of the United Kingdom and any new Dominions would be fully sovereign upon the grant of Dominion status. Although listed, Newfoundland never ratified the statute so was still subject to imperial authority when its entire system of government and economy collapsed in the mid-1930s. Canada did ratify the statute but with a requested exception—the Canadian federal and provincial governments could not agree on an amending formula for the Canadian constitution. It would be another 50 years before this was achieved. In the interim, the British parliament periodically passed constitutional amendments when requested by the government of Canada. This was never anything but a rubber stamp.",
"title": "History of the constitution"
},
{
"paragraph_id": 6,
"text": "The patriation of the Canadian constitution was achieved in 1982 when the British parliament, with the request and assent of the Canadian parliament, passed the Canada Act 1982, which included in its schedules the Constitution Act, 1982. The United Kingdom thus renounced any remaining responsibility for, or jurisdiction over, Canada. In a formal ceremony on Parliament Hill in Ottawa, Queen Elizabeth II proclaimed the Constitution Act, 1982 into law on 17 April 1982.",
"title": "History of the constitution"
},
{
"paragraph_id": 7,
"text": "The Constitution Act, 1982, includes the Canadian Charter of Rights and Freedoms. Before the Charter, various statutes protected an assortment of civil rights and obligations but nothing was enshrined in the constitution until 1982. The Charter has thus placed a strong focus upon individual and collective rights of the people of Canada. The enactment of the Charter of Rights and Freedoms has fundamentally changed much of Canadian constitutional law. The act also codified many previously oral constitutional conventions and made amendment of the constitution in general significantly more difficult. Previously, the Canadian constitution could be formally amended by an act of the British parliament, or by informal agreement between the federal and provincial governments, or even simply by adoption as the custom of an oral convention or performance that shows precedential but unwritten tradition. Since the act, textual amendments must now conform to certain specified provisions in the written portion of the Canadian constitution.",
"title": "History of the constitution"
},
{
"paragraph_id": 8,
"text": "This was an Act of the British parliament, originally called the British North America Act, 1867. It outlined Canada's system of government, which combines Britain's Westminster model of parliamentary government with the division of sovereignty (federalism). Although it is the first of 20 British North America Acts, it is the most famous as the primary document of Canadian Confederation. With the patriation of the Constitution in 1982, this Act was renamed Constitution Act, 1867. In recent years, the 1867 document has mainly served as the basis on which the division of powers between the provinces and the federal government is analyzed.",
"title": "Constitution Act, 1867"
},
{
"paragraph_id": 9,
"text": "Endorsed by all provincial governments except that of Quebec, this was the formal Act of Parliament that effected Canada's full legislative independence from the United Kingdom. Part V of this act established an amending formula for the Canadian constitution, the lack of which (due to more than 50 years of disagreement between the federal and provincial governments) meant Canada's constitutional amendments still required enactment by the British parliament after Statute of Westminster in 1931.",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 10,
"text": "The Constitution Act, 1982 was enacted as a schedule to the Canada Act 1982, a British Act of Parliament which was introduced at the request of a joint address to Queen Elizabeth II by the Senate and House of Commons of Canada. The version of the Canada Act 1982 which is in force in Britain is in English only, but the version of the act in force in Canada is bilingual, English and French. In addition to enacting the Constitution Act, 1982, the Canada Act 1982 provides that no further British acts of Parliament will apply to Canada as part of its law, finalizing Canada's legislative independence.",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 11,
"text": "As noted above, this is Part I of the Constitution Act, 1982. The Charter is the constitutional guarantee of the civil rights and liberties of every citizen in Canada, such as freedom of expression, of religion, and of mobility. Part II addresses the rights of Aboriginal peoples in Canada.",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 12,
"text": "It is written in plain language to ensure accessibility to the average citizen. It applies only to government and government actions to prevent the government from creating unconstitutional laws.",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 13,
"text": "Instead of the usual parliamentary procedure, which includes the monarch's formal royal assent for enacting legislation, amendments to the Constitution Act, 1982, must be done in accordance with Part V of the Constitution Act, 1982, which provides for five different amending formulae. Amendments can be brought forward under section 46(1) by any province or the federal legislature. The general formula set out in section 38(1), known as the \"7/50 formula\", requires: (a) assent from both the House of Commons and the Senate; (b) the approval of two-thirds of the provincial legislatures (at least seven provinces) representing at least 50 per cent of the population (effectively, this would include at least Quebec or Ontario, as they are the most populous provinces). This formula specifically applies to amendments related to the proportionate representation in Parliament, powers, selection, and composition of the Senate, the Supreme Court and the addition of provinces or territories.",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 14,
"text": "The other amendment formulae are for particular cases as provided by the act. An amendment related to the Office of the King, the use of either official language (subject to section 43), the amending formula itself, or the composition of the Supreme Court, must be adopted by unanimous consent of all the provinces in accordance with section 41. In the case of an amendment related to provincial boundaries or the use of an official language within a province alone, the amendment must be passed by the legislatures affected by the amendment (section 43). In the case of an amendment that affects the federal government only, the amendment does not need the approval of the provinces (section 44). The same applies to amendments affecting the provincial government alone (section 45).",
"title": "Constitution Act, 1982"
},
{
"paragraph_id": 15,
"text": "Canada's constitution has roots going back to the thirteenth century, including England's Magna Carta and the first English Parliament of 1275. Canada's constitution is composed of several individual statutes. There are three general methods by which a statute becomes entrenched in the Constitution:",
"title": "Sources of the constitution"
},
{
"paragraph_id": 16,
"text": "The existence of unwritten constitutional components was reaffirmed in 1998 by the Supreme Court in Reference re Secession of Quebec.",
"title": "Sources of the constitution"
},
{
"paragraph_id": 17,
"text": "The Constitution is more than a written text. It embraces the entire global system of rules and principles which govern the exercise of constitutional authority. A superficial reading of selected provisions of the written constitutional enactment, without more, may be misleading.",
"title": "Sources of the constitution"
},
{
"paragraph_id": 18,
"text": "In practice, there have been three sources of unwritten constitutional law:",
"title": "Sources of the constitution"
},
{
"paragraph_id": 19,
"text": "Unlike in most federations, Canadian provinces do not have written provincial constitutions. Provincial constitutions are instead a combination of uncodified constitution, provisions of the Constitution of Canada, and provincial statutes.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 20,
"text": "Overall structures of provincial governments (like the legislature and cabinet) are described in parts of the Constitution of Canada. Governmental structure of the original four provinces are described in Part V of the Constitution Act, 1867. The three colonies that joined Canada after Confederation had existing UK legislation which described their governmental structure, and this was affirmed in each colony's Terms of Union, which now form part of Canada's Constitution. The remaining three provinces were created by federal statute. Their constitutional structures are described in those statutes, which now form part of Canada's Constitution.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 21,
"text": "All provinces have enacted legislation that establishes other rules for the structure of government. For example, every province (and territory) has an act governing elections to the legislature, and another governing procedure in the legislature. Two provinces have explicitly listed such acts as being part of their provincial constitution; see Constitution of Quebec and Constitution Act (British Columbia). However, these acts do not, generally, supersede other legislation and do not require special procedures to amend, and so they function as regular statutes rather than constitutional statutes.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 22,
"text": "A small number of non-constitutional provincial laws do supersede all other provincial legislation, as a constitution would. This is referred to as quasi-constitutionality. Quasi-constitutionality is often applied to human rights laws, allowing those laws to act as a de facto constitutional charter of rights. For example, laws preventing discrimination in employment, housing, and services have clauses making them quasi-constitutional in ten of thirteen jurisdictions.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 23,
"text": "Section 45 of the Constitution Act, 1982 allows each province to amend its own constitution. This applies, for example, to provincial statute laws like Constitution of Quebec and Constitution Act (British Columbia). However, if the desired change would require an amendment to any documents that form part of the Constitution of Canada, it would require the consent of the Senate and House of Commons under section 43. This was done, for example, by the Constitution Amendment, 1998, when Newfoundland asked the federal government to amend the Terms of Union of Newfoundland to allow it to end denominational quotas for religion classes.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 24,
"text": "Three amendments to provincial constitutions in the 2020s have been controversially framed as amendments to the Constitution Act 1867. These are Quebec statutes purporting to add sections 90Q and 128Q and a Saskatchewan statute purporting to add section 90S. Because the Senate and House of Commons did not authorise these amendments, they would only have effect if they are amendments to provincial constitutions under the section 45 amending procedure. Constitutional scholars are divided on the validity of an amendment to a provincial constitution framed as an addition to part of the Constitution of Canada.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 25,
"text": "A small number of statutes within provincial constitutions cannot be amended by a simple majority of the legislative assembly, despite section 45. For example, section 7 of the Constitution of Alberta Amendment Act, 1990 requires plebiscites of Metis settlement members before that Act can be amended. Courts have not yet ruled about whether this kind of language really would bind future legislatures, but it might do so if the higher bar was met when creating the law.",
"title": "Provincial constitutions"
},
{
"paragraph_id": 26,
"text": "In 1983, Peter Greyson, an art student, entered Ottawa's National Archives (known today as Library and Archives Canada) and poured red paint mixed with glue over a copy of the proclamation of the 1982 constitutional amendment. He said he was displeased with the federal government's decision to allow United States missile testing in Canada and had wanted to \"graphically illustrate to Canadians\" how wrong he believed the government to be. Greyson was charged with public mischief and sentenced to 89 days in jail, 100 hours of community work, and two years of probation. A grapefruit-sized stain remains on the original document; restoration specialists opted to leave most of the paint intact, fearing that removal attempts would only cause further damage.",
"title": "Vandalism of the proclamation paper"
}
] | The Constitution of Canada is the supreme law in Canada. It outlines Canada's system of government and the civil and human rights of those who are citizens of Canada and non-citizens in Canada. Its contents are an amalgamation of various codified acts, treaties between the Crown and Indigenous Peoples, uncodified traditions and conventions. Canada is one of the oldest constitutional monarchies in the world. According to subsection 52(2) of the Constitution Act, 1982, the Canadian Constitution consists of the Canada Act 1982, acts and orders referred to in its schedule, and any amendments to these documents. The Supreme Court of Canada has held that the list is not exhaustive and also includes a number of pre-confederation acts and unwritten components as well. See list of Canadian constitutional documents for details. | 2001-12-10T22:14:56Z | 2023-11-14T19:10:18Z | [
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] | https://en.wikipedia.org/wiki/Constitution_of_Canada |
7,424 | Crochet | Crochet (English: /kroʊˈʃeɪ/; French: [kʁɔʃɛ]) is a process of creating textiles by using a crochet hook to interlock loops of yarn, thread, or strands of other materials. The name is derived from the French term crochet, meaning 'hook'. Hooks can be made from a variety of materials, such as metal, wood, bamboo, bone or plastic. The key difference between crochet and knitting, beyond the implements used for their production, is that each stitch in crochet is completed before the next one is begun, while knitting keeps many stitches open at a time. Some variant forms of crochet, such as Tunisian crochet and broomstick lace, do keep multiple crochet stitches open at a time.
The word crochet is derived from the French crochet, a diminutive of croche, in turn from the Germanic croc, both meaning "hook". It was used in 17th-century French lace-making, where the term crochetage designated a stitch used to join separate pieces of lace. The word crochet subsequently came to describe both the specific type of textile, and the hooked needle used to produce it.
In 1567, the tailor of Mary, Queen of Scots, Jehan de Compiegne, supplied her with silk thread for sewing and crochet, "soye à coudre et crochetz".
Knitted textiles survive from as early as the 11th century CE, but the first substantive evidence of crocheted fabric emerges in Europe during the 19th century. Earlier work identified as crochet was commonly made by nålebinding, a different looped yarn technique.
The first known published instructions for crochet explicitly using that term to describe the craft in its present sense appeared in the Dutch magazine Penélopé in 1823. This includes a colour plate showing five styles of purse, of which three were intended to be crocheted with silk thread. The first is "simple open crochet" (crochet simple ajour), a mesh of chain-stitch arches. The second (illustrated here) starts in a semi-open form (demi jour), where chain-stitch arches alternate with equally long segments of slip-stitch crochet, and closes with a star made with "double-crochet stitches" (dubbelde hekelsteek: double-crochet in British terminology; single-crochet in US). The third purse is made entirely in double-crochet. The instructions prescribe the use of a tambour needle (as illustrated below) and introduce a number of decorative techniques.
The earliest dated reference in English to garments made of cloth produced by looping yarn with a hook—shepherd's knitting—is in The Memoirs of a Highland Lady by Elizabeth Grant (1797–1830). The journal entry, itself, is dated 1812 but was not recorded in its subsequently published form until some time between 1845 and 1867, and the actual date of publication was first in 1898. Nonetheless, the 1833 volume of Penélopé describes and illustrates a shepherd's hook, and recommends its use for crochet with coarser yarn.
In 1844, one of the numerous books discussing crochet that began to appear in the 1840s states:
Crochet needles, sometimes called Shepherds' hooks, are made of steel, ivory, or box-wood. They have a hook at one end similar in shape to a fish-hook, by which the wool or silk is caught and drawn through the work. These instruments are to be procured of various sizes...
Two years later, the same author writes:
Crochet, — a species of knitting originally practised by the peasants in Scotland, with a small hooked needle called a shepherd's hook, — has, within the last seven years, aided by taste and fashion, obtained the preference over all other ornamental works of a similar nature. It derives its present name from the French; the instrument with which it is worked being by them, from its crooked shape, termed 'crochet.' This art has attained its highest degree of perfection in England, whence it has been transplanted to France and Germany, and both countries, although unjustifiably, have claimed the invention.
An instruction book from 1846 describes Shepherd or single crochet as what in current British usage is either called single crochet or slip-stitch crochet, with U.S. American terminology always using the latter (reserving single crochet for use as noted above). It similarly equates "Double" and "French crochet".
Notwithstanding the categorical assertion of a purely British origin, there is solid evidence of a connection between French tambour embroidery and crochet. French tambour embroidery was illustrated in detail in 1763 in Diderot's Encyclopedia. The tip of the needle shown there is indistinguishable from that of a present-day inline crochet hook and the chain stitch separated from a cloth support is a fundamental element of the latter technique. The 1823 Penélopé instructions unequivocally state that the tambour tool was used for crochet and the first of the 1840s instruction books uses the terms tambour and crochet as synonyms. This equivalence is retained in the 4th edition of that work, 1847.
The strong taper of the shepherd's hook eases the production of slip-stitch crochet but is less amenable to stitches that require multiple loops on the hook at the same time. Early yarn hooks were also continuously tapered but gradually enough to accommodate multiple loops. The design with a cylindrical shaft that is commonplace today was largely reserved for tambour-style steel needles. Both types gradually merged into the modern form that appeared toward the end of the 19th century, including both tapered and cylindrical segments, and the continuously tapered bone hook remained in industrial production until World War II.
The early instruction books make frequent reference to the alternative use of 'ivory, bone, or wooden hooks' and 'steel needles in a handle', as appropriate to the stitch being made. Taken with the synonymous labeling of shepherd's- and single crochet, and the similar equivalence of French- and double crochet, there is a strong suggestion that crochet is rooted both in tambour embroidery and shepherd's knitting, leading to thread and yarn crochet respectively; a distinction that is still made. The locus of the fusion of all these elements—the "invention" noted above—has yet to be determined, as does the origin of shepherd's knitting.
Shepherd's hooks are still being made for local slip-stitch crochet traditions. The form in the accompanying photograph is typical for contemporary production. A longer continuously tapering design intermediate between it and the 19th-century tapered hook was also in earlier production, commonly being made from the handles of forks and spoons.
In the 19th century, as Ireland was facing the Great Irish Famine (1845–1849), crochet lace work was introduced as a form of famine relief (the production of crocheted lace being an alternative way of making money for impoverished Irish workers). Men, women, children joined a co-operative in order to crochet and produce products to help with famine relief during the Great Irish Famine. Schools to teach crocheting were started. Teachers were trained and sent across Ireland to teach this craft. When the Irish immigrated to the Americas, they were able to take with them crocheting. Mademoiselle Riego de la Branchardiere is generally credited with the invention of Irish Crochet, publishing the first book of patterns in 1846. Irish lace became popular in Europe and America, and was made in quantity until the first World War.
Fashions in crochet changed with the end of the Victorian era in the 1890s. Crocheted laces in the new Edwardian era, peaking between 1910 and 1920, became even more elaborate in texture and complicated stitching.
The strong Victorian colours disappeared, though, and new publications called for white or pale threads, except for fancy purses, which were often crocheted of brightly colored silk and elaborately beaded. After World War I, far fewer crochet patterns were published, and most of them were simplified versions of the early 20th-century patterns. After World War II, from the late 1940s until the early 1960s, there was a resurgence in interest in home crafts, particularly in the United States, with many new and imaginative crochet designs published for colorful doilies, potholders, and other home items, along with updates of earlier publications. These patterns called for thicker threads and yarns than in earlier patterns and included variegated colors. The craft remained primarily a homemaker's art until the late 1960s and early 1970s, when the new generation picked up on crochet and popularized granny squares, a motif worked in the round and incorporating bright colors.
Although crochet underwent a subsequent decline in popularity, the early 21st century has seen a revival of interest in handcrafts and DIY, as well as improvement of the quality and varieties of yarn. As well as books and classes, there are YouTube tutorials and TikTok videos to help people who may need a clearer explanation to learn how to crochet.
Filet crochet, Tunisian crochet, tapestry crochet, broomstick lace, hairpin lace, cro-hooking, and Irish crochet are all variants of the basic crochet method.
Crochet has experienced a revival on the catwalk as well. Christopher Kane's Fall 2011 Ready-to-Wear collection makes intensive use of the granny square, one of the most basic of crochet motifs. In addition, crochet has been utilized many times by designers on the reality show Project Runway. Websites such as Etsy and Ravelry have made it easier for individual hobbyists to sell and distribute their patterns or projects across the internet.
Basic materials required for crochet are a hook and some type of material that will be crocheted, most commonly yarn or thread. Yarn, one of the most commonly used materials for crocheting, has varying weights which need to be taken into consideration when following patterns. Acrylic can also be used when crocheting, as it is synthetic and an alternative for wool. Additional tools are convenient for making related accessories. Examples of such tools include cardboard cutouts, which can be used to make tassels, fringe, and many other items; a pom-pom circle, used to make pom-poms; a tape measure and a gauge measure, both used for measuring crocheted work and counting stitches; a row counter; and occasionally plastic rings, which are used for special projects. In recent years, yarn selections have moved beyond synthetic and plant and animal-based fibers to include bamboo, qiviut, hemp, and banana stalks, to name a few. Many advanced crocheters have also incorporated recycled materials into their work in an effort to "go green" and experiment with new textures by using items such as plastic bags, old t-shirts or sheets, VCR or Cassette tape, and ribbon.
The crochet hook comes in many sizes and materials, such as bone, bamboo, aluminium, plastic, and steel. Because sizing is categorized by the diameter of the hook's shaft, a crafter aims to create stitches of a certain size in order to reach a particular gauge specified in a given pattern. If gauge is not reached with one hook, another is used until the stitches made are the needed size. Crafters may have a preference for one type of hook material over another due to aesthetic appeal, yarn glide, or hand disorders such as arthritis, where bamboo or wood hooks are favored over metal for the perceived warmth and flexibility during use. Hook grips and ergonomic hook handles are also available to assist crafters.
Steel crochet hooks range in size from 0.4 to 3.5 millimeters, or from 00 to 16 in American sizing. These hooks are used for fine crochet work such as doilies and lace.
Aluminium, bamboo, and plastic crochet hooks are available from 2.5 to 19 millimeters in size, or from B to S in American sizing.
Artisan-made hooks are often made of hand-turned woods, sometimes decorated with semi-precious stones or beads.
Crochet hooks used for Tunisian crochet are elongated and have a stopper at the end of the handle, while double-ended crochet hooks have a hook on both ends of the handle. There is also a double hooked apparatus called a Cro-hook that has become popular.
A hairpin loom is often used to create lacy and long stitches, known as hairpin lace. While this is not in itself a hook, it is a device used in conjunction with a crochet hook to produce stitches.
See : List of United States standard crochet hook and knitting needle sizes
Yarn for crochet is usually sold as balls, or skeins (hanks), although it may also be wound on spools or cones. Skeins and balls are generally sold with a yarn band, a label that describes the yarn's weight, length, dye lot, fiber content, washing instructions, suggested needle size, likely gauge, etc. It is a common practice to save the yarn band for future reference, especially if additional skeins must be purchased. Crocheters generally ensure that the yarn for a project comes from a single dye lot. The dye lot specifies a group of skeins that were dyed together and thus have precisely the same color; skeins from different dye lots, even if very similar in color, are usually slightly different and may produce a visible stripe when added onto existing work. If insufficient yarn of a single dye lot is bought to complete a project, additional skeins of the same dye lot can sometimes be obtained from other yarn stores or online.
The thickness or weight of the yarn is a significant factor in determining how many stitches and rows are required to cover a given area for a given stitch pattern. This is also termed the gauge. Thicker yarns generally require large-diameter crochet hooks, whereas thinner yarns may be crocheted with thick or thin hooks. Hence, thicker yarns generally require fewer stitches, and therefore less time, to work up a given project. The recommended gauge for a given ball of yarn can be found on the label that surrounds the skein when buying in stores. Patterns and motifs are coarser with thicker yarns and produce bold visual effects, whereas thinner yarns are best for refined or delicate pattern-work. Yarns are standardly grouped by thickness into six categories: superfine, fine, light, medium, bulky and superbulky. Quantitatively, thickness is measured by the number of wraps per inch (WPI). The related weight per unit length is usually measured in tex or denier.
Before use, hanks are wound into balls in which the yarn emerges from the center, making crocheting easier by preventing the yarn from becoming easily tangled. The winding process may be performed by hand or done with a ball winder and swift.
A yarn's usefulness is judged by several factors, such as its loft (its ability to trap air), its resilience (elasticity under tension), its washability and colorfastness, its hand (its feel, particularly softness vs. scratchiness), its durability against abrasion, its resistance to pilling, its hairiness (fuzziness), its tendency to twist or untwist, its overall weight and drape, its blocking and felting qualities, its comfort (breathability, moisture absorption, wicking properties) and its appearance, which includes its color, sheen, smoothness and ornamental features. Other factors include allergenicity, speed of drying, resistance to chemicals, moths, and mildew, melting point and flammability, retention of static electricity, and the propensity to accept dyes. Desirable properties may vary for different projects, so there is no one "best" yarn.
Although crochet may be done with ribbons, metal wire or more exotic filaments, most yarns are made by spinning fibers. In spinning, the fibers are twisted so that the yarn resists breaking under tension; the twisting may be done in either direction, resulting in a Z-twist or S-twist yarn. If the fibers are first aligned by combing them and the spinner uses a worsted type drafting method such as the short forward draw, the yarn is smoother and called a worsted; by contrast, if the fibers are carded but not combed and the spinner uses a woolen drafting method such as the long backward draw, the yarn is fuzzier and called woolen-spun. The fibers making up a yarn may be continuous filament fibers such as silk and many synthetics, or they may be staples (fibers of an average length, typically a few inches); naturally filament fibers are sometimes cut up into staples before spinning. The strength of the spun yarn against breaking is determined by the amount of twist, the length of the fibers and the thickness of the yarn. In general, yarns become stronger with more twist (also called worst), longer fibers and thicker yarns (more fibers); for example, thinner yarns require more twist than do thicker yarns to resist breaking under tension. The thickness of the yarn may vary along its length; a slub is a much thicker section in which a mass of fibers is incorporated into the yarn.
The spun fibers are generally divided into animal fibers, plant and synthetic fibers. These fiber types are chemically different, corresponding to proteins, carbohydrates and synthetic polymers, respectively. Animal fibers include silk, but generally are long hairs of animals such as sheep (wool), goat (angora, or cashmere goat), rabbit (angora), llama, alpaca, dog, cat, camel, yak, and muskox (qiviut). Plants used for fibers include cotton, flax (for linen), bamboo, ramie, hemp, jute, nettle, raffia, yucca, coconut husk, banana trees, soy and corn. Rayon and acetate fibers are also produced from cellulose mainly derived from trees. Common synthetic fibers include acrylics, polyesters such as dacron and ingeo, nylon and other polyamides, and olefins such as polypropylene. Of these types, wool is generally favored for crochet, chiefly owing to its superior elasticity, warmth and (sometimes) felting; however, wool is generally less convenient to clean and some people are allergic to it. It is also common to blend different fibers in the yarn, e.g., 85% alpaca and 15% silk. Even within a type of fiber, there can be great variety in the length and thickness of the fibers; for example, Merino wool and Egyptian cotton are favored because they produce exceptionally long, thin (fine) fibers for their type.
A single spun yarn may be crochet as is, or braided or plied with another. In plying, two or more yarns are spun together, almost always in the opposite sense from which they were spun individually; for example, two Z-twist yarns are usually plied with an S-twist. The opposing twist relieves some of the yarns' tendency to curl up and produces a thicker, balanced yarn. Plied yarns may themselves be plied together, producing cabled yarns or multi-stranded yarns. Sometimes, the yarns being plied are fed at different rates, so that one yarn loops around the other, as in bouclé. The single yarns may be dyed separately before plying, or afterwards to give the yarn a uniform look.
The dyeing of yarns is a complex art. Yarns need not be dyed; or they may be dyed one color, or a great variety of colors. Dyeing may be done industrially, by hand or even hand-painted onto the yarn. A great variety of synthetic dyes have been developed since the synthesis of indigo dye in the mid-19th century; however, natural dyes are also possible, although they are generally less brilliant. The color-scheme of a yarn is sometimes called its colorway. Variegated yarns can produce interesting visual effects, such as diagonal stripes.
Crocheted fabric is begun by placing a slip-knot loop on the hook (though other methods, such as a magic ring or simple folding over of the yarn may be used), pulling another loop through the first loop, and repeating this process to create a chain of a suitable length. The chain is either turned and worked in rows, or joined to the beginning of the row with a slip stitch and worked in rounds. Rounds can also be created by working many stitches into a single loop. Stitches are made by pulling one or more loops through each loop of the chain. At any one time at the end of a stitch, there is only one loop left on the hook. Tunisian crochet, however, draws all of the loops for an entire row onto a long hook before working them off one at a time. Like knitting, crochet can be worked either flat (back and forth in rows) or in the round (in spirals, such as when making tubular pieces).
There are six main types of basic stitches (the following description uses US crochet terminology which differs from the terminology used in the UK and Europe).
While the horizontal distance covered by these basic stitches is the same, they differ in height and thickness.
The more advanced stitches are often combinations of these basic stitches, or are made by inserting the hook into the work in unusual locations. More advanced stitches include the shell stitch, V stitch, spike stitch, Afghan stitch, butterfly stitch, popcorn stitch, cluster stitch, and crocodile stitch.
In the English-speaking crochet world, basic stitches have different names that vary by country. The differences are usually referred to as UK/US or British/American. Crochet is traditionally worked off a written pattern in which stitches and placement are communicated using textual abbreviations. To help counter confusion when reading patterns, a diagramming system using a standard international notation has come into use (illustration, left). In the United States, crochet terminology and sizing guidelines, as well as standards for yarn and hook labeling, are primarily regulated by the Craft Yarn Council.
Another terminological difference is known as tension (UK) and gauge (US). Individual crocheters work yarn with a loose or a tight hold and, if unmeasured, these differences can lead to significant size changes in finished garments that have the same number of stitches. In order to control for this inconsistency, printed crochet instructions include a standard for the number of stitches across a standard swatch of fabric. An individual crocheter begins work by producing a test swatch and compensating for any discrepancy by changing to a smaller or larger hook. North Americans call this gauge, referring to the result of these adjustments; British crocheters speak of tension, which refers to the crafter's grip on the yarn while producing stitches.
One of the more obvious differences is that crochet uses one hook while much knitting uses two needles. In most crochet, the artisan usually has only one live stitch on the hook (with the exception being Tunisian crochet), while a knitter keeps an entire row of stitches active simultaneously. Dropped stitches, which can unravel a knitted fabric, rarely interfere with crochet work, due to a second structural difference between knitting and crochet. In knitting, each stitch is supported by the corresponding stitch in the row above and it supports the corresponding stitch in the row below, whereas crochet stitches are only supported by and support the stitches on either side of it. If a stitch in a finished crocheted item breaks, the stitches above and below remain intact, and because of the complex looping of each stitch, the stitches on either side are unlikely to come loose unless heavily stressed.
Round or cylindrical patterns are simple to produce with a regular crochet hook, but cylindrical knitting requires either a set of circular needles or three to five special double-ended needles. Many crocheted items are composed of individual motifs which are then joined, either by sewing or crocheting, whereas knitting is usually composed of one fabric, such as entrelac.
Freeform crochet is a technique that can create interesting shapes in three dimensions because new stitches can be made independently of previous stitches almost anywhere in the crocheted piece. It is generally accomplished by building shapes or structural elements onto existing crocheted fabric at any place the crafter desires.
Knitting can be accomplished by machine, while many crochet stitches can only be crafted by hand. The height of knitted and crocheted stitches is also different: a single crochet stitch is twice the height of a knit stitch in the same yarn size and comparable diameter tools, and a double crochet stitch is about four times the height of a knit stitch.
While most crochet is made with a hook, there is also a method of crocheting with a knitting loom. This is called loomchet. Slip stitch crochet is very similar to knitting. Each stitch in slip stitch crochet is formed the same way as a knit or purl stitch which is then bound off. A person working in slip stitch crochet can follow a knitted pattern with knits, purls, and cables, and get a similar result.
It is a common perception that crochet produces a thicker fabric than knitting, tends to have less "give" than knitted fabric, and uses approximately a third more yarn for a comparable project than knitted items. Although this is true when comparing a single crochet swatch with a stockinette swatch, both made with the same size yarn and needle/hook, it is not necessarily true for crochet in general. Most crochet uses far less than 1/3 more yarn than knitting for comparable pieces, and a crocheter can get similar feel and drape to knitting by using a larger hook or thinner yarn. Tunisian crochet and slip stitch crochet can in some cases use less yarn than knitting for comparable pieces. According to sources claiming to have tested the 1/3 more yarn assertion, a single crochet stitch (sc) uses approximately the same amount of yarn as knit garter stitch, but more yarn than stockinette stitch. Any stitch using yarnovers uses less yarn than single crochet to produce the same amount of fabric. Cluster stitches, which are in fact multiple stitches worked together, will use the most length.
Standard crochet stitches like sc and dc also produce a thicker fabric, more like knit garter stitch. This is part of why they use more yarn. Slip stitch can produce a fabric much like stockinette that is thinner and therefore uses less yarn.
Any yarn can be either knitted or crocheted, provided needles or hooks of the correct size are used, but the cord's properties should be taken into account. For example, lofty, thick woolen yarns tend to function better when knitted, which does not crush their airy structure, while thin and tightly spun yarn helps to achieve the firm texture required for Amigurumi crochet.
It has been very common for people and groups to crochet clothing and other garments and then donate them to soldiers during war. People have also crocheted clothing and then donated it to hospitals, for sick patients and also for newborn babies. Sometimes groups will crochet for a specific charity purpose, such as crocheting for homeless shelters, nursing homes, etc.
It is becoming increasingly popular to crochet hats (commonly referred to as "chemo caps") and donate them to cancer treatment centers, for those undergoing chemotherapy and therefore losing hair. During October pink hats and scarves are made and proceeds are donated to breast cancer funds. Organizations dedicated to using crochet as a way to help others include Knots of Love, Crochet for Cancer, and Soldiers' Angels. These organizations offer warm useful items for people in need.
In 2020, people around the world banded together to help save the wildlife affected by the Australian bushfires by crocheting kangaroo pouches, koala mittens and wildlife nests. This was an international effort to help during the particularly bad bushfire season which devastated local ecological systems.
A group started in 2005 to create crochet versions of coral reefs grew by 2022 to over 20,000 contributors in what became the Crochet Coral Reef Project. To promote awareness of the effects of global warming, their creations have been displayed in galleries and museums by an estimated 2 million people. Many creations apply hyperbolic (curved) geometric shapes—distinguished from Euclidean (flat) geometry—to emulate natural structures.
Crochet has been used to illustrate shapes in hyperbolic space that are difficult to reproduce using other media or are difficult to understand when viewed two-dimensionally.
Mathematician Daina Taimiņa first used crochet in 1997 to create strong, durable models of hyperbolic space after finding paper models were delicate and hard to create. These models enable one to turn, fold, and otherwise manipulate space to more fully grasp ideas such as how a line can appear curved in hyperbolic space yet actually be straight. Her work received an exhibition by the Institute For Figuring.
Examples in nature of organisms that show hyperbolic structures include lettuces, sea slugs, flatworms and coral. Margaret Wertheim and Christine Wertheim of the Institute For Figuring created a travelling art installation of a coral reef using Taimina's method. Local artists are encouraged to create their own "satellite reefs" to be included alongside the original display.
As hyperbolic and mathematics-based crochet has become more popular, there have been several events highlighting work from various fiber artists. Two shows were Sant Ocean Hall at the Smithsonian in Washington, D.C., and Sticks, Hooks, and the Mobius: Knit and Crochet Go Cerebral at Lafayette College in Pennsylvania.
In Style in the technical arts, Gottfried Semper looks at the textile with great promise and historical precedent. In Section 53, he writes of the "loop stitch, or Noeud Coulant: a knot that, if untied, causes the whole system to unravel." In the same section, Semper confesses his ignorance of the subject of crochet but believes strongly that it is a technique of great value as a textile technique and possibly something more.
There are a small number of architects currently interested in the subject of crochet as it relates to architecture. The following publications, explorations and thesis projects can be used as a resource to see how crochet is being used within the capacity of architecture.
In the past few years, a practice called yarn bombing, or the use of knitted or crocheted cloth to modify and beautify one's (usually outdoor) surroundings, emerged in the US and spread worldwide. Yarn bombers sometimes target existing pieces of graffiti for beautification. In 2010, an entity dubbed "the Midnight Knitter" hit West Cape May. Residents awoke to find knit cozies hugging tree branches and sign poles. In September 2015, Grace Brett was named "The World's Oldest Yarn Bomber". She is part of a group of yarn graffiti-artists called the Souter Stormers, who beautify their local town in Scotland. | [
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"text": "Crochet (English: /kroʊˈʃeɪ/; French: [kʁɔʃɛ]) is a process of creating textiles by using a crochet hook to interlock loops of yarn, thread, or strands of other materials. The name is derived from the French term crochet, meaning 'hook'. Hooks can be made from a variety of materials, such as metal, wood, bamboo, bone or plastic. The key difference between crochet and knitting, beyond the implements used for their production, is that each stitch in crochet is completed before the next one is begun, while knitting keeps many stitches open at a time. Some variant forms of crochet, such as Tunisian crochet and broomstick lace, do keep multiple crochet stitches open at a time.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The word crochet is derived from the French crochet, a diminutive of croche, in turn from the Germanic croc, both meaning \"hook\". It was used in 17th-century French lace-making, where the term crochetage designated a stitch used to join separate pieces of lace. The word crochet subsequently came to describe both the specific type of textile, and the hooked needle used to produce it.",
"title": "Etymology"
},
{
"paragraph_id": 2,
"text": "In 1567, the tailor of Mary, Queen of Scots, Jehan de Compiegne, supplied her with silk thread for sewing and crochet, \"soye à coudre et crochetz\".",
"title": "Etymology"
},
{
"paragraph_id": 3,
"text": "Knitted textiles survive from as early as the 11th century CE, but the first substantive evidence of crocheted fabric emerges in Europe during the 19th century. Earlier work identified as crochet was commonly made by nålebinding, a different looped yarn technique.",
"title": "Origins"
},
{
"paragraph_id": 4,
"text": "The first known published instructions for crochet explicitly using that term to describe the craft in its present sense appeared in the Dutch magazine Penélopé in 1823. This includes a colour plate showing five styles of purse, of which three were intended to be crocheted with silk thread. The first is \"simple open crochet\" (crochet simple ajour), a mesh of chain-stitch arches. The second (illustrated here) starts in a semi-open form (demi jour), where chain-stitch arches alternate with equally long segments of slip-stitch crochet, and closes with a star made with \"double-crochet stitches\" (dubbelde hekelsteek: double-crochet in British terminology; single-crochet in US). The third purse is made entirely in double-crochet. The instructions prescribe the use of a tambour needle (as illustrated below) and introduce a number of decorative techniques.",
"title": "Origins"
},
{
"paragraph_id": 5,
"text": "The earliest dated reference in English to garments made of cloth produced by looping yarn with a hook—shepherd's knitting—is in The Memoirs of a Highland Lady by Elizabeth Grant (1797–1830). The journal entry, itself, is dated 1812 but was not recorded in its subsequently published form until some time between 1845 and 1867, and the actual date of publication was first in 1898. Nonetheless, the 1833 volume of Penélopé describes and illustrates a shepherd's hook, and recommends its use for crochet with coarser yarn.",
"title": "Origins"
},
{
"paragraph_id": 6,
"text": "In 1844, one of the numerous books discussing crochet that began to appear in the 1840s states:",
"title": "Origins"
},
{
"paragraph_id": 7,
"text": "Crochet needles, sometimes called Shepherds' hooks, are made of steel, ivory, or box-wood. They have a hook at one end similar in shape to a fish-hook, by which the wool or silk is caught and drawn through the work. These instruments are to be procured of various sizes...",
"title": "Origins"
},
{
"paragraph_id": 8,
"text": "Two years later, the same author writes:",
"title": "Origins"
},
{
"paragraph_id": 9,
"text": "Crochet, — a species of knitting originally practised by the peasants in Scotland, with a small hooked needle called a shepherd's hook, — has, within the last seven years, aided by taste and fashion, obtained the preference over all other ornamental works of a similar nature. It derives its present name from the French; the instrument with which it is worked being by them, from its crooked shape, termed 'crochet.' This art has attained its highest degree of perfection in England, whence it has been transplanted to France and Germany, and both countries, although unjustifiably, have claimed the invention.",
"title": "Origins"
},
{
"paragraph_id": 10,
"text": "An instruction book from 1846 describes Shepherd or single crochet as what in current British usage is either called single crochet or slip-stitch crochet, with U.S. American terminology always using the latter (reserving single crochet for use as noted above). It similarly equates \"Double\" and \"French crochet\".",
"title": "Origins"
},
{
"paragraph_id": 11,
"text": "Notwithstanding the categorical assertion of a purely British origin, there is solid evidence of a connection between French tambour embroidery and crochet. French tambour embroidery was illustrated in detail in 1763 in Diderot's Encyclopedia. The tip of the needle shown there is indistinguishable from that of a present-day inline crochet hook and the chain stitch separated from a cloth support is a fundamental element of the latter technique. The 1823 Penélopé instructions unequivocally state that the tambour tool was used for crochet and the first of the 1840s instruction books uses the terms tambour and crochet as synonyms. This equivalence is retained in the 4th edition of that work, 1847.",
"title": "Origins"
},
{
"paragraph_id": 12,
"text": "The strong taper of the shepherd's hook eases the production of slip-stitch crochet but is less amenable to stitches that require multiple loops on the hook at the same time. Early yarn hooks were also continuously tapered but gradually enough to accommodate multiple loops. The design with a cylindrical shaft that is commonplace today was largely reserved for tambour-style steel needles. Both types gradually merged into the modern form that appeared toward the end of the 19th century, including both tapered and cylindrical segments, and the continuously tapered bone hook remained in industrial production until World War II.",
"title": "Origins"
},
{
"paragraph_id": 13,
"text": "The early instruction books make frequent reference to the alternative use of 'ivory, bone, or wooden hooks' and 'steel needles in a handle', as appropriate to the stitch being made. Taken with the synonymous labeling of shepherd's- and single crochet, and the similar equivalence of French- and double crochet, there is a strong suggestion that crochet is rooted both in tambour embroidery and shepherd's knitting, leading to thread and yarn crochet respectively; a distinction that is still made. The locus of the fusion of all these elements—the \"invention\" noted above—has yet to be determined, as does the origin of shepherd's knitting.",
"title": "Origins"
},
{
"paragraph_id": 14,
"text": "Shepherd's hooks are still being made for local slip-stitch crochet traditions. The form in the accompanying photograph is typical for contemporary production. A longer continuously tapering design intermediate between it and the 19th-century tapered hook was also in earlier production, commonly being made from the handles of forks and spoons.",
"title": "Origins"
},
{
"paragraph_id": 15,
"text": "In the 19th century, as Ireland was facing the Great Irish Famine (1845–1849), crochet lace work was introduced as a form of famine relief (the production of crocheted lace being an alternative way of making money for impoverished Irish workers). Men, women, children joined a co-operative in order to crochet and produce products to help with famine relief during the Great Irish Famine. Schools to teach crocheting were started. Teachers were trained and sent across Ireland to teach this craft. When the Irish immigrated to the Americas, they were able to take with them crocheting. Mademoiselle Riego de la Branchardiere is generally credited with the invention of Irish Crochet, publishing the first book of patterns in 1846. Irish lace became popular in Europe and America, and was made in quantity until the first World War.",
"title": "Irish crochet"
},
{
"paragraph_id": 16,
"text": "Fashions in crochet changed with the end of the Victorian era in the 1890s. Crocheted laces in the new Edwardian era, peaking between 1910 and 1920, became even more elaborate in texture and complicated stitching.",
"title": "Modern practice and culture"
},
{
"paragraph_id": 17,
"text": "The strong Victorian colours disappeared, though, and new publications called for white or pale threads, except for fancy purses, which were often crocheted of brightly colored silk and elaborately beaded. After World War I, far fewer crochet patterns were published, and most of them were simplified versions of the early 20th-century patterns. After World War II, from the late 1940s until the early 1960s, there was a resurgence in interest in home crafts, particularly in the United States, with many new and imaginative crochet designs published for colorful doilies, potholders, and other home items, along with updates of earlier publications. These patterns called for thicker threads and yarns than in earlier patterns and included variegated colors. The craft remained primarily a homemaker's art until the late 1960s and early 1970s, when the new generation picked up on crochet and popularized granny squares, a motif worked in the round and incorporating bright colors.",
"title": "Modern practice and culture"
},
{
"paragraph_id": 18,
"text": "Although crochet underwent a subsequent decline in popularity, the early 21st century has seen a revival of interest in handcrafts and DIY, as well as improvement of the quality and varieties of yarn. As well as books and classes, there are YouTube tutorials and TikTok videos to help people who may need a clearer explanation to learn how to crochet.",
"title": "Modern practice and culture"
},
{
"paragraph_id": 19,
"text": "Filet crochet, Tunisian crochet, tapestry crochet, broomstick lace, hairpin lace, cro-hooking, and Irish crochet are all variants of the basic crochet method.",
"title": "Modern practice and culture"
},
{
"paragraph_id": 20,
"text": "Crochet has experienced a revival on the catwalk as well. Christopher Kane's Fall 2011 Ready-to-Wear collection makes intensive use of the granny square, one of the most basic of crochet motifs. In addition, crochet has been utilized many times by designers on the reality show Project Runway. Websites such as Etsy and Ravelry have made it easier for individual hobbyists to sell and distribute their patterns or projects across the internet.",
"title": "Modern practice and culture"
},
{
"paragraph_id": 21,
"text": "Basic materials required for crochet are a hook and some type of material that will be crocheted, most commonly yarn or thread. Yarn, one of the most commonly used materials for crocheting, has varying weights which need to be taken into consideration when following patterns. Acrylic can also be used when crocheting, as it is synthetic and an alternative for wool. Additional tools are convenient for making related accessories. Examples of such tools include cardboard cutouts, which can be used to make tassels, fringe, and many other items; a pom-pom circle, used to make pom-poms; a tape measure and a gauge measure, both used for measuring crocheted work and counting stitches; a row counter; and occasionally plastic rings, which are used for special projects. In recent years, yarn selections have moved beyond synthetic and plant and animal-based fibers to include bamboo, qiviut, hemp, and banana stalks, to name a few. Many advanced crocheters have also incorporated recycled materials into their work in an effort to \"go green\" and experiment with new textures by using items such as plastic bags, old t-shirts or sheets, VCR or Cassette tape, and ribbon.",
"title": "Materials"
},
{
"paragraph_id": 22,
"text": "The crochet hook comes in many sizes and materials, such as bone, bamboo, aluminium, plastic, and steel. Because sizing is categorized by the diameter of the hook's shaft, a crafter aims to create stitches of a certain size in order to reach a particular gauge specified in a given pattern. If gauge is not reached with one hook, another is used until the stitches made are the needed size. Crafters may have a preference for one type of hook material over another due to aesthetic appeal, yarn glide, or hand disorders such as arthritis, where bamboo or wood hooks are favored over metal for the perceived warmth and flexibility during use. Hook grips and ergonomic hook handles are also available to assist crafters.",
"title": "Materials"
},
{
"paragraph_id": 23,
"text": "Steel crochet hooks range in size from 0.4 to 3.5 millimeters, or from 00 to 16 in American sizing. These hooks are used for fine crochet work such as doilies and lace.",
"title": "Materials"
},
{
"paragraph_id": 24,
"text": "Aluminium, bamboo, and plastic crochet hooks are available from 2.5 to 19 millimeters in size, or from B to S in American sizing.",
"title": "Materials"
},
{
"paragraph_id": 25,
"text": "Artisan-made hooks are often made of hand-turned woods, sometimes decorated with semi-precious stones or beads.",
"title": "Materials"
},
{
"paragraph_id": 26,
"text": "Crochet hooks used for Tunisian crochet are elongated and have a stopper at the end of the handle, while double-ended crochet hooks have a hook on both ends of the handle. There is also a double hooked apparatus called a Cro-hook that has become popular.",
"title": "Materials"
},
{
"paragraph_id": 27,
"text": "A hairpin loom is often used to create lacy and long stitches, known as hairpin lace. While this is not in itself a hook, it is a device used in conjunction with a crochet hook to produce stitches.",
"title": "Materials"
},
{
"paragraph_id": 28,
"text": "See : List of United States standard crochet hook and knitting needle sizes",
"title": "Materials"
},
{
"paragraph_id": 29,
"text": "Yarn for crochet is usually sold as balls, or skeins (hanks), although it may also be wound on spools or cones. Skeins and balls are generally sold with a yarn band, a label that describes the yarn's weight, length, dye lot, fiber content, washing instructions, suggested needle size, likely gauge, etc. It is a common practice to save the yarn band for future reference, especially if additional skeins must be purchased. Crocheters generally ensure that the yarn for a project comes from a single dye lot. The dye lot specifies a group of skeins that were dyed together and thus have precisely the same color; skeins from different dye lots, even if very similar in color, are usually slightly different and may produce a visible stripe when added onto existing work. If insufficient yarn of a single dye lot is bought to complete a project, additional skeins of the same dye lot can sometimes be obtained from other yarn stores or online.",
"title": "Materials"
},
{
"paragraph_id": 30,
"text": "The thickness or weight of the yarn is a significant factor in determining how many stitches and rows are required to cover a given area for a given stitch pattern. This is also termed the gauge. Thicker yarns generally require large-diameter crochet hooks, whereas thinner yarns may be crocheted with thick or thin hooks. Hence, thicker yarns generally require fewer stitches, and therefore less time, to work up a given project. The recommended gauge for a given ball of yarn can be found on the label that surrounds the skein when buying in stores. Patterns and motifs are coarser with thicker yarns and produce bold visual effects, whereas thinner yarns are best for refined or delicate pattern-work. Yarns are standardly grouped by thickness into six categories: superfine, fine, light, medium, bulky and superbulky. Quantitatively, thickness is measured by the number of wraps per inch (WPI). The related weight per unit length is usually measured in tex or denier.",
"title": "Materials"
},
{
"paragraph_id": 31,
"text": "Before use, hanks are wound into balls in which the yarn emerges from the center, making crocheting easier by preventing the yarn from becoming easily tangled. The winding process may be performed by hand or done with a ball winder and swift.",
"title": "Materials"
},
{
"paragraph_id": 32,
"text": "A yarn's usefulness is judged by several factors, such as its loft (its ability to trap air), its resilience (elasticity under tension), its washability and colorfastness, its hand (its feel, particularly softness vs. scratchiness), its durability against abrasion, its resistance to pilling, its hairiness (fuzziness), its tendency to twist or untwist, its overall weight and drape, its blocking and felting qualities, its comfort (breathability, moisture absorption, wicking properties) and its appearance, which includes its color, sheen, smoothness and ornamental features. Other factors include allergenicity, speed of drying, resistance to chemicals, moths, and mildew, melting point and flammability, retention of static electricity, and the propensity to accept dyes. Desirable properties may vary for different projects, so there is no one \"best\" yarn.",
"title": "Materials"
},
{
"paragraph_id": 33,
"text": "Although crochet may be done with ribbons, metal wire or more exotic filaments, most yarns are made by spinning fibers. In spinning, the fibers are twisted so that the yarn resists breaking under tension; the twisting may be done in either direction, resulting in a Z-twist or S-twist yarn. If the fibers are first aligned by combing them and the spinner uses a worsted type drafting method such as the short forward draw, the yarn is smoother and called a worsted; by contrast, if the fibers are carded but not combed and the spinner uses a woolen drafting method such as the long backward draw, the yarn is fuzzier and called woolen-spun. The fibers making up a yarn may be continuous filament fibers such as silk and many synthetics, or they may be staples (fibers of an average length, typically a few inches); naturally filament fibers are sometimes cut up into staples before spinning. The strength of the spun yarn against breaking is determined by the amount of twist, the length of the fibers and the thickness of the yarn. In general, yarns become stronger with more twist (also called worst), longer fibers and thicker yarns (more fibers); for example, thinner yarns require more twist than do thicker yarns to resist breaking under tension. The thickness of the yarn may vary along its length; a slub is a much thicker section in which a mass of fibers is incorporated into the yarn.",
"title": "Materials"
},
{
"paragraph_id": 34,
"text": "The spun fibers are generally divided into animal fibers, plant and synthetic fibers. These fiber types are chemically different, corresponding to proteins, carbohydrates and synthetic polymers, respectively. Animal fibers include silk, but generally are long hairs of animals such as sheep (wool), goat (angora, or cashmere goat), rabbit (angora), llama, alpaca, dog, cat, camel, yak, and muskox (qiviut). Plants used for fibers include cotton, flax (for linen), bamboo, ramie, hemp, jute, nettle, raffia, yucca, coconut husk, banana trees, soy and corn. Rayon and acetate fibers are also produced from cellulose mainly derived from trees. Common synthetic fibers include acrylics, polyesters such as dacron and ingeo, nylon and other polyamides, and olefins such as polypropylene. Of these types, wool is generally favored for crochet, chiefly owing to its superior elasticity, warmth and (sometimes) felting; however, wool is generally less convenient to clean and some people are allergic to it. It is also common to blend different fibers in the yarn, e.g., 85% alpaca and 15% silk. Even within a type of fiber, there can be great variety in the length and thickness of the fibers; for example, Merino wool and Egyptian cotton are favored because they produce exceptionally long, thin (fine) fibers for their type.",
"title": "Materials"
},
{
"paragraph_id": 35,
"text": "A single spun yarn may be crochet as is, or braided or plied with another. In plying, two or more yarns are spun together, almost always in the opposite sense from which they were spun individually; for example, two Z-twist yarns are usually plied with an S-twist. The opposing twist relieves some of the yarns' tendency to curl up and produces a thicker, balanced yarn. Plied yarns may themselves be plied together, producing cabled yarns or multi-stranded yarns. Sometimes, the yarns being plied are fed at different rates, so that one yarn loops around the other, as in bouclé. The single yarns may be dyed separately before plying, or afterwards to give the yarn a uniform look.",
"title": "Materials"
},
{
"paragraph_id": 36,
"text": "The dyeing of yarns is a complex art. Yarns need not be dyed; or they may be dyed one color, or a great variety of colors. Dyeing may be done industrially, by hand or even hand-painted onto the yarn. A great variety of synthetic dyes have been developed since the synthesis of indigo dye in the mid-19th century; however, natural dyes are also possible, although they are generally less brilliant. The color-scheme of a yarn is sometimes called its colorway. Variegated yarns can produce interesting visual effects, such as diagonal stripes.",
"title": "Materials"
},
{
"paragraph_id": 37,
"text": "Crocheted fabric is begun by placing a slip-knot loop on the hook (though other methods, such as a magic ring or simple folding over of the yarn may be used), pulling another loop through the first loop, and repeating this process to create a chain of a suitable length. The chain is either turned and worked in rows, or joined to the beginning of the row with a slip stitch and worked in rounds. Rounds can also be created by working many stitches into a single loop. Stitches are made by pulling one or more loops through each loop of the chain. At any one time at the end of a stitch, there is only one loop left on the hook. Tunisian crochet, however, draws all of the loops for an entire row onto a long hook before working them off one at a time. Like knitting, crochet can be worked either flat (back and forth in rows) or in the round (in spirals, such as when making tubular pieces).",
"title": "Process"
},
{
"paragraph_id": 38,
"text": "There are six main types of basic stitches (the following description uses US crochet terminology which differs from the terminology used in the UK and Europe).",
"title": "Types of stitches"
},
{
"paragraph_id": 39,
"text": "While the horizontal distance covered by these basic stitches is the same, they differ in height and thickness.",
"title": "Types of stitches"
},
{
"paragraph_id": 40,
"text": "The more advanced stitches are often combinations of these basic stitches, or are made by inserting the hook into the work in unusual locations. More advanced stitches include the shell stitch, V stitch, spike stitch, Afghan stitch, butterfly stitch, popcorn stitch, cluster stitch, and crocodile stitch.",
"title": "Types of stitches"
},
{
"paragraph_id": 41,
"text": "In the English-speaking crochet world, basic stitches have different names that vary by country. The differences are usually referred to as UK/US or British/American. Crochet is traditionally worked off a written pattern in which stitches and placement are communicated using textual abbreviations. To help counter confusion when reading patterns, a diagramming system using a standard international notation has come into use (illustration, left). In the United States, crochet terminology and sizing guidelines, as well as standards for yarn and hook labeling, are primarily regulated by the Craft Yarn Council.",
"title": "International crochet terms and notations"
},
{
"paragraph_id": 42,
"text": "Another terminological difference is known as tension (UK) and gauge (US). Individual crocheters work yarn with a loose or a tight hold and, if unmeasured, these differences can lead to significant size changes in finished garments that have the same number of stitches. In order to control for this inconsistency, printed crochet instructions include a standard for the number of stitches across a standard swatch of fabric. An individual crocheter begins work by producing a test swatch and compensating for any discrepancy by changing to a smaller or larger hook. North Americans call this gauge, referring to the result of these adjustments; British crocheters speak of tension, which refers to the crafter's grip on the yarn while producing stitches.",
"title": "International crochet terms and notations"
},
{
"paragraph_id": 43,
"text": "One of the more obvious differences is that crochet uses one hook while much knitting uses two needles. In most crochet, the artisan usually has only one live stitch on the hook (with the exception being Tunisian crochet), while a knitter keeps an entire row of stitches active simultaneously. Dropped stitches, which can unravel a knitted fabric, rarely interfere with crochet work, due to a second structural difference between knitting and crochet. In knitting, each stitch is supported by the corresponding stitch in the row above and it supports the corresponding stitch in the row below, whereas crochet stitches are only supported by and support the stitches on either side of it. If a stitch in a finished crocheted item breaks, the stitches above and below remain intact, and because of the complex looping of each stitch, the stitches on either side are unlikely to come loose unless heavily stressed.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 44,
"text": "Round or cylindrical patterns are simple to produce with a regular crochet hook, but cylindrical knitting requires either a set of circular needles or three to five special double-ended needles. Many crocheted items are composed of individual motifs which are then joined, either by sewing or crocheting, whereas knitting is usually composed of one fabric, such as entrelac.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 45,
"text": "Freeform crochet is a technique that can create interesting shapes in three dimensions because new stitches can be made independently of previous stitches almost anywhere in the crocheted piece. It is generally accomplished by building shapes or structural elements onto existing crocheted fabric at any place the crafter desires.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 46,
"text": "Knitting can be accomplished by machine, while many crochet stitches can only be crafted by hand. The height of knitted and crocheted stitches is also different: a single crochet stitch is twice the height of a knit stitch in the same yarn size and comparable diameter tools, and a double crochet stitch is about four times the height of a knit stitch.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 47,
"text": "While most crochet is made with a hook, there is also a method of crocheting with a knitting loom. This is called loomchet. Slip stitch crochet is very similar to knitting. Each stitch in slip stitch crochet is formed the same way as a knit or purl stitch which is then bound off. A person working in slip stitch crochet can follow a knitted pattern with knits, purls, and cables, and get a similar result.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 48,
"text": "It is a common perception that crochet produces a thicker fabric than knitting, tends to have less \"give\" than knitted fabric, and uses approximately a third more yarn for a comparable project than knitted items. Although this is true when comparing a single crochet swatch with a stockinette swatch, both made with the same size yarn and needle/hook, it is not necessarily true for crochet in general. Most crochet uses far less than 1/3 more yarn than knitting for comparable pieces, and a crocheter can get similar feel and drape to knitting by using a larger hook or thinner yarn. Tunisian crochet and slip stitch crochet can in some cases use less yarn than knitting for comparable pieces. According to sources claiming to have tested the 1/3 more yarn assertion, a single crochet stitch (sc) uses approximately the same amount of yarn as knit garter stitch, but more yarn than stockinette stitch. Any stitch using yarnovers uses less yarn than single crochet to produce the same amount of fabric. Cluster stitches, which are in fact multiple stitches worked together, will use the most length.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 49,
"text": "Standard crochet stitches like sc and dc also produce a thicker fabric, more like knit garter stitch. This is part of why they use more yarn. Slip stitch can produce a fabric much like stockinette that is thinner and therefore uses less yarn.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 50,
"text": "Any yarn can be either knitted or crocheted, provided needles or hooks of the correct size are used, but the cord's properties should be taken into account. For example, lofty, thick woolen yarns tend to function better when knitted, which does not crush their airy structure, while thin and tightly spun yarn helps to achieve the firm texture required for Amigurumi crochet.",
"title": "Differences from and similarities to knitting"
},
{
"paragraph_id": 51,
"text": "It has been very common for people and groups to crochet clothing and other garments and then donate them to soldiers during war. People have also crocheted clothing and then donated it to hospitals, for sick patients and also for newborn babies. Sometimes groups will crochet for a specific charity purpose, such as crocheting for homeless shelters, nursing homes, etc.",
"title": "Charity and activism"
},
{
"paragraph_id": 52,
"text": "It is becoming increasingly popular to crochet hats (commonly referred to as \"chemo caps\") and donate them to cancer treatment centers, for those undergoing chemotherapy and therefore losing hair. During October pink hats and scarves are made and proceeds are donated to breast cancer funds. Organizations dedicated to using crochet as a way to help others include Knots of Love, Crochet for Cancer, and Soldiers' Angels. These organizations offer warm useful items for people in need.",
"title": "Charity and activism"
},
{
"paragraph_id": 53,
"text": "In 2020, people around the world banded together to help save the wildlife affected by the Australian bushfires by crocheting kangaroo pouches, koala mittens and wildlife nests. This was an international effort to help during the particularly bad bushfire season which devastated local ecological systems.",
"title": "Charity and activism"
},
{
"paragraph_id": 54,
"text": "A group started in 2005 to create crochet versions of coral reefs grew by 2022 to over 20,000 contributors in what became the Crochet Coral Reef Project. To promote awareness of the effects of global warming, their creations have been displayed in galleries and museums by an estimated 2 million people. Many creations apply hyperbolic (curved) geometric shapes—distinguished from Euclidean (flat) geometry—to emulate natural structures.",
"title": "Charity and activism"
},
{
"paragraph_id": 55,
"text": "Crochet has been used to illustrate shapes in hyperbolic space that are difficult to reproduce using other media or are difficult to understand when viewed two-dimensionally.",
"title": "Mathematics and hyperbolic crochet"
},
{
"paragraph_id": 56,
"text": "Mathematician Daina Taimiņa first used crochet in 1997 to create strong, durable models of hyperbolic space after finding paper models were delicate and hard to create. These models enable one to turn, fold, and otherwise manipulate space to more fully grasp ideas such as how a line can appear curved in hyperbolic space yet actually be straight. Her work received an exhibition by the Institute For Figuring.",
"title": "Mathematics and hyperbolic crochet"
},
{
"paragraph_id": 57,
"text": "Examples in nature of organisms that show hyperbolic structures include lettuces, sea slugs, flatworms and coral. Margaret Wertheim and Christine Wertheim of the Institute For Figuring created a travelling art installation of a coral reef using Taimina's method. Local artists are encouraged to create their own \"satellite reefs\" to be included alongside the original display.",
"title": "Mathematics and hyperbolic crochet"
},
{
"paragraph_id": 58,
"text": "As hyperbolic and mathematics-based crochet has become more popular, there have been several events highlighting work from various fiber artists. Two shows were Sant Ocean Hall at the Smithsonian in Washington, D.C., and Sticks, Hooks, and the Mobius: Knit and Crochet Go Cerebral at Lafayette College in Pennsylvania.",
"title": "Mathematics and hyperbolic crochet"
},
{
"paragraph_id": 59,
"text": "In Style in the technical arts, Gottfried Semper looks at the textile with great promise and historical precedent. In Section 53, he writes of the \"loop stitch, or Noeud Coulant: a knot that, if untied, causes the whole system to unravel.\" In the same section, Semper confesses his ignorance of the subject of crochet but believes strongly that it is a technique of great value as a textile technique and possibly something more.",
"title": "Architecture"
},
{
"paragraph_id": 60,
"text": "There are a small number of architects currently interested in the subject of crochet as it relates to architecture. The following publications, explorations and thesis projects can be used as a resource to see how crochet is being used within the capacity of architecture.",
"title": "Architecture"
},
{
"paragraph_id": 61,
"text": "In the past few years, a practice called yarn bombing, or the use of knitted or crocheted cloth to modify and beautify one's (usually outdoor) surroundings, emerged in the US and spread worldwide. Yarn bombers sometimes target existing pieces of graffiti for beautification. In 2010, an entity dubbed \"the Midnight Knitter\" hit West Cape May. Residents awoke to find knit cozies hugging tree branches and sign poles. In September 2015, Grace Brett was named \"The World's Oldest Yarn Bomber\". She is part of a group of yarn graffiti-artists called the Souter Stormers, who beautify their local town in Scotland.",
"title": "Architecture"
}
] | Crochet is a process of creating textiles by using a crochet hook to interlock loops of yarn, thread, or strands of other materials. The name is derived from the French term crochet, meaning 'hook'. Hooks can be made from a variety of materials, such as metal, wood, bamboo, bone or plastic. The key difference between crochet and knitting, beyond the implements used for their production, is that each stitch in crochet is completed before the next one is begun, while knitting keeps many stitches open at a time. Some variant forms of crochet, such as Tunisian crochet and broomstick lace, do keep multiple crochet stitches open at a time. | 2002-02-25T15:43:11Z | 2023-12-24T21:38:08Z | [
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7,425 | Electromagnetic coil | An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil (spiral or helix). Electromagnetic coils are used in electrical engineering, in applications where electric currents interact with magnetic fields, in devices such as electric motors, generators, inductors, electromagnets, transformers, and sensor coils. Either an electric current is passed through the wire of the coil to generate a magnetic field, or conversely, an external time-varying magnetic field through the interior of the coil generates an EMF (voltage) in the conductor.
A current through any conductor creates a circular magnetic field around the conductor due to Ampere's law. The advantage of using the coil shape is that it increases the strength of the magnetic field produced by a given current. The magnetic fields generated by the separate turns of wire all pass through the center of the coil and add (superpose) to produce a strong field there. The greater the number of turns of wire, the stronger the field produced. Conversely, a changing external magnetic flux induces a voltage in a conductor such as a wire, due to Faraday's law of induction. The induced voltage can be increased by winding the wire into a coil because the field lines intersect the circuit multiple times.
The direction of the magnetic field produced by a coil can be determined by the right hand grip rule. If the fingers of the right hand are wrapped around the magnetic core of a coil in the direction of conventional current through the wire, the thumb will point in the direction the magnetic field lines pass through the coil. The end of a magnetic core from which the field lines emerge is defined to be the North pole.
There are many different types of coils used in electric and electronic equipment.
The wire or conductor which constitutes the coil is called the winding. The hole in the center of the coil is called the core area or magnetic axis. Each loop of wire is called a turn. In windings in which the turns touch, the wire must be insulated with a coating of nonconductive insulation such as plastic or enamel to prevent the current from passing between the wire turns. The winding is often wrapped around a coil form made of plastic or other material to hold it in place. The ends of the wire are brought out and attached to an external circuit. Windings may have additional electrical connections along their length; these are called taps. A winding that has a single tap in the center of its length is called center-tapped.
Coils can have more than one winding, insulated electrically from each other. When there are two or more windings around a common magnetic axis, the windings are said to be inductively coupled or magnetically coupled. A time-varying current through one winding will create a time-varying magnetic field that passes through the other winding, which will induce a time-varying voltage in the other windings. This is called a transformer. The winding to which current is applied, which creates the magnetic field, is called the primary winding. The other windings are called secondary windings.
Many electromagnetic coils have a magnetic core, a piece of ferromagnetic material like iron in the center to increase the magnetic field. The current through the coil magnetizes the iron, and the field of the magnetized material adds to the field produced by the wire. This is called a ferromagnetic-core or iron-core coil. A ferromagnetic core can increase the magnetic field and inductance of a coil by hundreds or thousands of times over what it would be without the core. A ferrite core coil is a variety of coil with a core made of ferrite, a ferrimagnetic ceramic compound. Ferrite coils have lower core losses at high frequencies.
A coil without a ferromagnetic core is called an air-core coil. This includes coils wound on plastic or other nonmagnetic forms, as well as coils which actually have empty air space inside their windings.
Coils can be classified by the frequency of the current they are designed to operate with:
Coils can be classified by their function:
Electromagnets are coils that generate a magnetic field for some external use, often to exert a mechanical force on something. or remove existing background fields. A few specific types:
Inductors or reactors are coils which generate a magnetic field which interacts with the coil itself, to induce a back EMF which opposes changes in current through the coil. Inductors are used as circuit elements in electrical circuits, to temporarily store energy or resist changes in current. A few types:
A transformer is a device with two or more magnetically coupled windings (or sections of a single winding). A time varying current in one coil (called the primary winding) generates a magnetic field which induces a voltage in the other coil (called the secondary winding). A few types:
Electric machines such as motors and generators have one or more windings which interact with moving magnetic fields to convert electrical energy to mechanical energy. Often a machine will have one winding through which passes most of the power of the machine (the "armature"), and a second winding which provides the magnetic field of the rotating element ( the "field winding") which may be connected by brushes or slip rings to an external source of electric current. In an induction motor, the "field" winding of the rotor is energized by the slow relative motion between the rotating winding and the rotating magnetic field produced by the stator winding, which induces the necessary exciting current in the rotor.
These are coils used to translate time-varying magnetic fields to electric signals, and vice versa. A few types:
There are also types of coil which don't fit into these categories. | [
{
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"text": "An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil (spiral or helix). Electromagnetic coils are used in electrical engineering, in applications where electric currents interact with magnetic fields, in devices such as electric motors, generators, inductors, electromagnets, transformers, and sensor coils. Either an electric current is passed through the wire of the coil to generate a magnetic field, or conversely, an external time-varying magnetic field through the interior of the coil generates an EMF (voltage) in the conductor.",
"title": ""
},
{
"paragraph_id": 1,
"text": "A current through any conductor creates a circular magnetic field around the conductor due to Ampere's law. The advantage of using the coil shape is that it increases the strength of the magnetic field produced by a given current. The magnetic fields generated by the separate turns of wire all pass through the center of the coil and add (superpose) to produce a strong field there. The greater the number of turns of wire, the stronger the field produced. Conversely, a changing external magnetic flux induces a voltage in a conductor such as a wire, due to Faraday's law of induction. The induced voltage can be increased by winding the wire into a coil because the field lines intersect the circuit multiple times.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The direction of the magnetic field produced by a coil can be determined by the right hand grip rule. If the fingers of the right hand are wrapped around the magnetic core of a coil in the direction of conventional current through the wire, the thumb will point in the direction the magnetic field lines pass through the coil. The end of a magnetic core from which the field lines emerge is defined to be the North pole.",
"title": ""
},
{
"paragraph_id": 3,
"text": "There are many different types of coils used in electric and electronic equipment.",
"title": ""
},
{
"paragraph_id": 4,
"text": "The wire or conductor which constitutes the coil is called the winding. The hole in the center of the coil is called the core area or magnetic axis. Each loop of wire is called a turn. In windings in which the turns touch, the wire must be insulated with a coating of nonconductive insulation such as plastic or enamel to prevent the current from passing between the wire turns. The winding is often wrapped around a coil form made of plastic or other material to hold it in place. The ends of the wire are brought out and attached to an external circuit. Windings may have additional electrical connections along their length; these are called taps. A winding that has a single tap in the center of its length is called center-tapped.",
"title": "Windings and taps"
},
{
"paragraph_id": 5,
"text": "Coils can have more than one winding, insulated electrically from each other. When there are two or more windings around a common magnetic axis, the windings are said to be inductively coupled or magnetically coupled. A time-varying current through one winding will create a time-varying magnetic field that passes through the other winding, which will induce a time-varying voltage in the other windings. This is called a transformer. The winding to which current is applied, which creates the magnetic field, is called the primary winding. The other windings are called secondary windings.",
"title": "Windings and taps"
},
{
"paragraph_id": 6,
"text": "Many electromagnetic coils have a magnetic core, a piece of ferromagnetic material like iron in the center to increase the magnetic field. The current through the coil magnetizes the iron, and the field of the magnetized material adds to the field produced by the wire. This is called a ferromagnetic-core or iron-core coil. A ferromagnetic core can increase the magnetic field and inductance of a coil by hundreds or thousands of times over what it would be without the core. A ferrite core coil is a variety of coil with a core made of ferrite, a ferrimagnetic ceramic compound. Ferrite coils have lower core losses at high frequencies.",
"title": "Magnetic core"
},
{
"paragraph_id": 7,
"text": "A coil without a ferromagnetic core is called an air-core coil. This includes coils wound on plastic or other nonmagnetic forms, as well as coils which actually have empty air space inside their windings.",
"title": "Magnetic core"
},
{
"paragraph_id": 8,
"text": "Coils can be classified by the frequency of the current they are designed to operate with:",
"title": "Types of coils"
},
{
"paragraph_id": 9,
"text": "Coils can be classified by their function:",
"title": "Types of coils"
},
{
"paragraph_id": 10,
"text": "Electromagnets are coils that generate a magnetic field for some external use, often to exert a mechanical force on something. or remove existing background fields. A few specific types:",
"title": "Types of coils"
},
{
"paragraph_id": 11,
"text": "Inductors or reactors are coils which generate a magnetic field which interacts with the coil itself, to induce a back EMF which opposes changes in current through the coil. Inductors are used as circuit elements in electrical circuits, to temporarily store energy or resist changes in current. A few types:",
"title": "Types of coils"
},
{
"paragraph_id": 12,
"text": "A transformer is a device with two or more magnetically coupled windings (or sections of a single winding). A time varying current in one coil (called the primary winding) generates a magnetic field which induces a voltage in the other coil (called the secondary winding). A few types:",
"title": "Types of coils"
},
{
"paragraph_id": 13,
"text": "Electric machines such as motors and generators have one or more windings which interact with moving magnetic fields to convert electrical energy to mechanical energy. Often a machine will have one winding through which passes most of the power of the machine (the \"armature\"), and a second winding which provides the magnetic field of the rotating element ( the \"field winding\") which may be connected by brushes or slip rings to an external source of electric current. In an induction motor, the \"field\" winding of the rotor is energized by the slow relative motion between the rotating winding and the rotating magnetic field produced by the stator winding, which induces the necessary exciting current in the rotor.",
"title": "Types of coils"
},
{
"paragraph_id": 14,
"text": "These are coils used to translate time-varying magnetic fields to electric signals, and vice versa. A few types:",
"title": "Types of coils"
},
{
"paragraph_id": 15,
"text": "There are also types of coil which don't fit into these categories.",
"title": "Types of coils"
}
] | An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil. Electromagnetic coils are used in electrical engineering, in applications where electric currents interact with magnetic fields, in devices such as electric motors, generators, inductors, electromagnets, transformers, and sensor coils. Either an electric current is passed through the wire of the coil to generate a magnetic field, or conversely, an external time-varying magnetic field through the interior of the coil generates an EMF (voltage) in the conductor. A current through any conductor creates a circular magnetic field around the conductor due to Ampere's law. The advantage of using the coil shape is that it increases the strength of the magnetic field produced by a given current. The magnetic fields generated by the separate turns of wire all pass through the center of the coil and add (superpose) to produce a strong field there. The greater the number of turns of wire, the stronger the field produced. Conversely, a changing external magnetic flux induces a voltage in a conductor such as a wire, due to Faraday's law of induction. The induced voltage can be increased by winding the wire into a coil because the field lines intersect the circuit multiple times. The direction of the magnetic field produced by a coil can be determined by the right hand grip rule. If the fingers of the right hand are wrapped around the magnetic core of a coil in the direction of conventional current through the wire, the thumb will point in the direction the magnetic field lines pass through the coil. The end of a magnetic core from which the field lines emerge is defined to be the North pole. There are many different types of coils used in electric and electronic equipment. | 2023-07-22T20:19:47Z | [
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7,426 | Charles I of England | Charles I (19 November 1600 – 30 January 1649) was King of England, Scotland, and Ireland from 27 March 1625 until his execution in 1649.
Charles was born into the House of Stuart as the second son of King James VI of Scotland, but after his father inherited the English throne in 1603, he moved to England, where he spent much of the rest of his life. He became heir apparent to the kingdoms of England, Scotland, and Ireland in 1612 upon the death of his elder brother, Henry Frederick, Prince of Wales. An unsuccessful and unpopular attempt to marry him to Infanta Maria Anna of Spain culminated in an eight-month visit to Spain in 1623 that demonstrated the futility of the marriage negotiation. Two years later, shortly after his accession, he married Henrietta Maria of France.
After his succession in 1625, Charles quarrelled with the English Parliament, which sought to curb his royal prerogative. He believed in the divine right of kings, and was determined to govern according to his own conscience. Many of his subjects opposed his policies, in particular the levying of taxes without parliamentary consent, and perceived his actions as those of a tyrannical absolute monarch. His religious policies, coupled with his marriage to a Roman Catholic, generated antipathy and mistrust from Reformed religious groups such as the English Puritans and Scottish Covenanters, who thought his views too Catholic. He supported high church Anglican ecclesiastics and failed to aid continental Protestant forces successfully during the Thirty Years' War. His attempts to force the Church of Scotland to adopt high Anglican practices led to the Bishops' Wars, strengthened the position of the English and Scottish parliaments, and helped precipitate his own downfall.
From 1642, Charles fought the armies of the English and Scottish parliaments in the English Civil War. After his defeat in 1645 at the hands of the Parliamentarian New Model Army, he fled north from his base at Oxford. Charles surrendered to a Scottish force and after lengthy negotiations between the English and Scottish parliaments he was handed over to the Long Parliament in London. Charles refused to accept his captors' demands for a constitutional monarchy, and temporarily escaped captivity in November 1647. Re-imprisoned on the Isle of Wight, he forged an alliance with Scotland, but by the end of 1648, the New Model Army had consolidated its control over England. Charles was tried, convicted, and executed for high treason in January 1649. The monarchy was abolished and the Commonwealth of England was established as a republic. The monarchy would be restored to Charles's son Charles II in 1660.
The second son of King James VI of Scotland and Anne of Denmark, Charles was born in Dunfermline Palace, Fife, on 19 November 1600. At a Protestant ceremony in the Chapel Royal of Holyrood Palace in Edinburgh on 23 December 1600, he was baptised by David Lindsay, Bishop of Ross, and created Duke of Albany, the traditional title of the second son of the king of Scotland, with the subsidiary titles of Marquess of Ormond, Earl of Ross and Lord Ardmannoch.
James VI was the first cousin twice removed of Queen Elizabeth I of England, and when she died childless in March 1603, he became King of England as James I. Charles was a weak and sickly infant, and while his parents and older siblings left for England in April and early June that year, due to his fragile health, he remained in Scotland with his father's friend Lord Fyvie appointed as his guardian.
By 1604, when Charles was three-and-a-half, he was able to walk the length of the great hall at Dunfermline Palace without assistance, and it was decided that he was strong enough to journey to England to be reunited with his family. In mid-July 1604, he left Dunfermline for England, where he was to spend most of the rest of his life. In England, Charles was placed under the charge of Elizabeth, Lady Carey, the wife of courtier Sir Robert Carey, who put him in boots made of Spanish leather and brass to help strengthen his weak ankles. His speech development was also slow, and he had a stammer for the rest of his life.
In January 1605, Charles was created Duke of York, as is customary in the case of the English sovereign's second son, and made a Knight of the Bath. Thomas Murray, a presbyterian Scot, was appointed as a tutor. Charles learnt the usual subjects of classics, languages, mathematics and religion. In 1611, he was made a Knight of the Garter.
Eventually, Charles apparently conquered his physical infirmity, which might have been caused by rickets. He became an adept horseman and marksman, and took up fencing. Even so, his public profile remained low in contrast to that of his physically stronger and taller elder brother, Henry Frederick, Prince of Wales, whom Charles adored and attempted to emulate. But in early November 1612, Henry died at the age of 18 of what is suspected to have been typhoid (or possibly porphyria). Charles, who turned 12 two weeks later, became heir apparent. As the eldest surviving son of the sovereign, he automatically gained several titles, including Duke of Cornwall and Duke of Rothesay. In November 1616, he was created Prince of Wales and Earl of Chester.
In 1613, Charles's sister Elizabeth married Frederick V, Elector Palatine, and moved to Heidelberg. In 1617, the Habsburg Archduke Ferdinand of Austria, a Catholic, was elected king of Bohemia. The next year, the Bohemians rebelled, defenestrating the Catholic governors. In August 1619, the Bohemian diet chose Frederick, who led the Protestant Union, as their monarch, while Ferdinand was elected Holy Roman Emperor in the imperial election. Frederick's acceptance of the Bohemian crown in defiance of the emperor marked the beginning of the turmoil that would develop into the Thirty Years' War. The conflict, originally confined to Bohemia, spiralled into a wider European war, which the English Parliament and public quickly grew to see as a polarised continental struggle between Catholics and Protestants. In 1620, King Frederick was defeated at the Battle of White Mountain near Prague and his hereditary lands in the Electoral Palatinate were invaded by a Habsburg force from the Spanish Netherlands. James, however, had been seeking marriage between Prince Charles and Ferdinand's niece, Infanta Maria Anna of Spain, and began to see the Spanish match as a possible diplomatic means of achieving peace in Europe.
Unfortunately for James, negotiation with Spain proved unpopular with both the public and James's court. The English Parliament was actively hostile towards Spain and Catholicism, and thus, when called by James in 1621, the members hoped for an enforcement of recusancy laws, a naval campaign against Spain, and a Protestant marriage for the Prince of Wales. James's Lord Chancellor, Francis Bacon, was impeached before the House of Lords for corruption. The impeachment was the first since 1459 without the king's official sanction in the form of a bill of attainder. The incident set an important precedent as the process of impeachment would later be used against Charles and his supporters the Duke of Buckingham, Archbishop William Laud, and the Earl of Strafford. James insisted that the House of Commons be concerned exclusively with domestic affairs, while the members protested that they had the privilege of free speech within the Commons' walls, demanding war with Spain and a Protestant princess of Wales. Like his father, Charles considered discussion of his marriage in the Commons impertinent and an infringement of his father's royal prerogative. In January 1622, James dissolved Parliament, angry at what he perceived as the members' impudence and intransigence.
Charles and Buckingham, James's favourite and a man who had great influence over the prince, travelled incognito to Spain in February 1623 to try to reach agreement on the long-pending Spanish match. The trip was an embarrassing failure. The infanta thought Charles little more than an infidel, and the Spanish at first demanded that he convert to Catholicism as a condition of the match. They insisted on toleration of Catholics in England and the repeal of the English penal laws, which Charles knew Parliament would not agree to, and that the infanta remain in Spain for a year after any wedding to ensure that England complied with all the treaty's terms. A personal quarrel erupted between Buckingham and the Count of Olivares, the Spanish chief minister, and so Charles conducted the ultimately futile negotiations personally. When he returned to London in October, without a bride and to a rapturous and relieved public welcome, he and Buckingham pushed the reluctant James to declare war on Spain.
With the encouragement of his Protestant advisers, James summoned the English Parliament in 1624 to request subsidies for a war. Charles and Buckingham supported the impeachment of the Lord Treasurer, Lionel Cranfield, 1st Earl of Middlesex, who opposed war on grounds of cost and quickly fell in much the same manner Bacon had. James told Buckingham he was a fool, and presciently warned Charles that he would live to regret the revival of impeachment as a parliamentary tool. An underfunded makeshift army under Ernst von Mansfeld set off to recover the Palatinate, but it was so poorly provisioned that it never advanced beyond the Dutch coast.
By 1624, the increasingly ill James was finding it difficult to control Parliament. By the time of his death in March 1625, Charles and Buckingham had already assumed de facto control of the kingdom.
With the failure of the Spanish match, Charles and Buckingham turned their attention to France. On 1 May 1625 Charles was married by proxy to the 15-year-old French princess Henrietta Maria in front of the doors of Notre Dame de Paris. He had seen her in Paris while en route to Spain. They met in person on 13 June 1625 in Canterbury. Charles delayed the opening of his first Parliament until after the marriage was consummated, to forestall any opposition. Many members of the Commons opposed his marriage to a Catholic, fearing that he would lift restrictions on Catholic recusants and undermine the official establishment of the reformed Church of England. Charles told Parliament that he would not relax religious restrictions, but promised to do exactly that in a secret marriage treaty with his brother-in-law Louis XIII of France. Moreover, the treaty loaned to the French seven English naval ships that were used to suppress the Protestant Huguenots at La Rochelle in September 1625. Charles was crowned on 2 February 1626 at Westminster Abbey, but without his wife at his side, because she refused to participate in a Protestant religious ceremony.
Distrust of Charles's religious policies increased with his support of a controversial anti-Calvinist ecclesiastic, Richard Montagu, who was in disrepute among the Puritans. In his pamphlet A New Gag for an Old Goose (1624), a reply to the Catholic pamphlet A New Gag for the New Gospel, Montagu argued against Calvinist predestination, the doctrine that God preordained salvation and damnation. Anti-Calvinists—known as Arminians—believed that people could influence their fates by exercising free will. Arminian divines had been one of the few sources of support for Charles's proposed Spanish marriage. With King James's support, Montagu produced another pamphlet, Appello Caesarem, published in 1625 shortly after James's death and Charles's accession. To protect Montagu from the stricture of Puritan members of Parliament, Charles made him a royal chaplain, heightening many Puritans' suspicions that Charles favoured Arminianism as a clandestine attempt to aid Catholicism's resurgence.
Rather than direct involvement in the European land war, the English Parliament preferred a relatively inexpensive naval attack on Spanish colonies in the New World, hoping for the capture of the Spanish treasure fleets. Parliament voted to grant a subsidy of £140,000, an insufficient sum for Charles's war plans. Moreover, the House of Commons limited its authorisation for royal collection of tonnage and poundage (two varieties of customs duties) to a year, although previous sovereigns since Henry VI had been granted the right for life. In this manner, Parliament could delay approval of the rates until after a full-scale review of customs revenue. The bill made no progress in the House of Lords past its first reading. Although no Parliamentary Act for the levy of tonnage and poundage was obtained, Charles continued to collect the duties.
A poorly conceived and executed naval expedition against Spain under Buckingham's leadership went badly, and the House of Commons began proceedings for the impeachment of the duke. In May 1626, Charles nominated Buckingham as Chancellor of Cambridge University in a show of support, and had two members who had spoken against Buckingham—Dudley Digges and Sir John Eliot—arrested at the door of the House. The Commons was outraged by the imprisonment of two of their members, and after about a week in custody, both were released. On 12 June 1626, the Commons launched a direct protestation attacking Buckingham, stating, "We protest before your Majesty and the whole world that until this great person be removed from intermeddling with the great affairs of state, we are out of hope of any good success; and do fear that any money we shall or can give will, through his misemployment, be turned rather to the hurt and prejudice of this your kingdom than otherwise, as by lamentable experience we have found those large supplies formerly and lately given." Despite the protests, Charles refused to dismiss his friend, dismissing Parliament instead.
Meanwhile, domestic quarrels between Charles and Henrietta Maria were souring the early years of their marriage. Disputes over her jointure, appointments to her household, and the practice of her religion culminated in the king expelling the vast majority of her French attendants in August 1626. Despite Charles's agreement to provide the French with English ships as a condition of marrying Henrietta Maria, in 1627 he launched an attack on the French coast to defend the Huguenots at La Rochelle. The action, led by Buckingham, was ultimately unsuccessful. Buckingham's failure to protect the Huguenots—and his retreat from Saint-Martin-de-Ré—spurred Louis XIII's siege of La Rochelle and furthered the English Parliament's and people's detestation of the duke.
Charles provoked further unrest by trying to raise money for the war through a "forced loan": a tax levied without parliamentary consent. In November 1627, the test case in the King's Bench, the "Five Knights' Case", found that the king had a prerogative right to imprison without trial those who refused to pay the forced loan. Summoned again in March 1628, Parliament adopted a Petition of Right on 26 May, calling upon Charles to acknowledge that he could not levy taxes without Parliament's consent, impose martial law on civilians, imprison them without due process, or quarter troops in their homes. Charles assented to the petition on 7 June, but by the end of the month he had prorogued Parliament and reasserted his right to collect customs duties without authorisation from Parliament.
On 23 August 1628, Buckingham was assassinated. Charles was deeply distressed. According to Edward Hyde, 1st Earl of Clarendon, he "threw himself upon his bed, lamenting with much passion and with abundance of tears". He remained grieving in his room for two days. In contrast, the public rejoiced at Buckingham's death, accentuating the gulf between the court and the nation and between the Crown and the Commons. Buckingham's death effectively ended the war with Spain and eliminated his leadership as an issue, but it did not end the conflicts between Charles and Parliament. It did, however, coincide with an improvement in Charles's relationship with his wife, and by November 1628 their old quarrels were at an end. Perhaps Charles's emotional ties were transferred from Buckingham to Henrietta Maria. She became pregnant for the first time, and the bond between them grew stronger. Together, they embodied an image of virtue and family life, and their court became a model of formality and morality.
In January 1629, Charles opened the second session of the English Parliament, which had been prorogued in June 1628, with a moderate speech on the tonnage and poundage issue. Members of the House of Commons began to voice opposition to Charles's policies in light of the case of John Rolle, a Member of Parliament whose goods had been confiscated for failing to pay tonnage and poundage. Many MPs viewed the imposition of the tax as a breach of the Petition of Right. When Charles ordered a parliamentary adjournment on 2 March, members held the Speaker, Sir John Finch, down in his chair so that the session could be prolonged long enough for resolutions against Catholicism, Arminianism and tonnage and poundage to be read out and acclaimed by the chamber. The provocation was too much for Charles, who dissolved Parliament and had nine parliamentary leaders, including Sir John Eliot, imprisoned over the matter, thereby turning the men into martyrs and giving popular cause to their protest.
Personal rule necessitated peace. Without the means in the foreseeable future to raise funds from Parliament for a European war, or Buckingham's help, Charles made peace with France and Spain. The next 11 years, during which Charles ruled England without a Parliament, are known as the Personal Rule or the "eleven years' tyranny". Ruling without Parliament was not exceptional, and was supported by precedent. But only Parliament could legally raise taxes, and without it Charles's capacity to acquire funds for his treasury was limited to his customary rights and prerogatives.
A large fiscal deficit had arisen during the reigns of Elizabeth I and James I. Notwithstanding Buckingham's short-lived campaigns against both Spain and France, Charles had little financial capacity to wage wars overseas. Throughout his reign, he was obliged to rely primarily on volunteer forces for defence and on diplomatic efforts to support his sister Elizabeth and his foreign policy objective for the restoration of the Palatinate. England was still the least taxed country in Europe, with no official excise and no regular direct taxation. To raise revenue without reconvening Parliament, Charles resurrected an all-but-forgotten law called the "Distraint of Knighthood", in abeyance for over a century, which required any man who earned £40 or more from land each year to present himself at the king's coronation to be knighted. Relying on this old statute, Charles fined those who had failed to attend his coronation in 1626.
The chief tax Charles imposed was a feudal levy known as ship money, which proved even more unpopular, and lucrative, than tonnage and poundage before it. Previously, collection of ship money had been authorised only during wars, and only on coastal regions. But Charles argued that there was no legal bar to collecting the tax for defence during peacetime and throughout the whole of the kingdom. Ship money, paid directly to the Treasury of the Navy, provided between £150,000 to £200,000 annually between 1634 and 1638, after which yields declined. Opposition to ship money steadily grew, but England's 12 common law judges ruled the tax within the king's prerogative, though some of them had reservations. The prosecution of John Hampden for non-payment in 1637–38 provided a platform for popular protest, and the judges found against Hampden only by the narrow margin of 7–5.
Charles also derived money by granting monopolies, despite a statute forbidding such action, which, though inefficient, raised an estimated £100,000 a year in the late 1630s. One such monopoly was for soap, pejoratively referred to as "popish soap" because some of its backers were Catholics. Charles also raised funds from the Scottish nobility, at the price of considerable acrimony, by the Act of Revocation (1625), whereby all gifts of royal or church land made to the nobility since 1540 were revoked, with continued ownership being subject to an annual rent. In addition, the boundaries of the royal forests in England were restored to their ancient limits as part of a scheme to maximise income by exploiting the land and fining land users within the reasserted boundaries for encroachment. The programme's focus was disafforestation and sale of forest lands for conversion to pasture and arable farming, or in the case of the Forest of Dean, development for the iron industry. Disafforestation frequently caused riots and disturbances, including those known as the Western Rising.
Against the background of this unrest, Charles faced bankruptcy in mid-1640. The City of London, preoccupied with its own grievances, refused to make any loans to him, as did foreign powers. In this extremity, in July Charles seized silver bullion worth £130,000 held in trust at the mint in the Tower of London, promising its later return at 8% interest to its owners. In August, after the East India Company refused to grant a loan, Lord Cottington seized the company's stock of pepper and spices and sold it for £60,000 (far below its market value), promising to refund the money with interest later.
Throughout Charles's reign, the English Reformation was in the forefront of political debate. Arminian theology emphasised clerical authority and the individual's ability to reject or accept salvation, which opponents viewed as heretical and a potential vehicle for the reintroduction of Catholicism. Puritan reformers considered Charles too sympathetic to Arminianism, and opposed his desire to move the Church of England in a more traditional and sacramental direction. In addition, his Protestant subjects followed the European war closely and grew increasingly dismayed by Charles's diplomacy with Spain and his failure to support the Protestant cause abroad effectively.
In 1633, Charles appointed William Laud Archbishop of Canterbury. They initiated a series of reforms to promote religious uniformity by restricting non-conformist preachers, insisting the liturgy be celebrated as prescribed by the Book of Common Prayer, organising the internal architecture of English churches to emphasise the sacrament of the altar, and reissuing King James's Declaration of Sports, which permitted secular activities on the sabbath. The Feoffees for Impropriations, an organisation that bought benefices and advowsons so that Puritans could be appointed to them, was dissolved. Laud prosecuted those who opposed his reforms in the Court of High Commission and the Star Chamber, the two most powerful courts in the land. The courts became feared for their censorship of opposing religious views and unpopular among the propertied classes for inflicting degrading punishments on gentlemen. For example, in 1637 William Prynne, Henry Burton and John Bastwick were pilloried, whipped and mutilated by cropping and imprisoned indefinitely for publishing anti-episcopal pamphlets.
When Charles attempted to impose his religious policies in Scotland he faced numerous difficulties. Although born in Scotland, Charles had become estranged from it; his first visit since early childhood was for his Scottish coronation in 1633. To the dismay of the Scots, who had removed many traditional rituals from their liturgical practice, Charles insisted that the coronation be conducted using the Anglican rite. In 1637, he ordered the use of a new prayer book in Scotland that was almost identical to the English Book of Common Prayer, without consulting either the Scottish Parliament or the Kirk. Although it had been written, under Charles's direction, by Scottish bishops, many Scots resisted it, seeing it as a vehicle to introduce Anglicanism to Scotland. On 23 July, riots erupted in Edinburgh upon the first Sunday of the prayer book's usage, and unrest spread throughout the Kirk. The public began to mobilise around a reaffirmation of the National Covenant, whose signatories pledged to uphold the reformed religion of Scotland and reject any innovations not authorised by Kirk and Parliament. When the General Assembly of the Church of Scotland met in November 1638, it condemned the new prayer book, abolished episcopal church government by bishops, and adopted presbyterian government by elders and deacons.
Charles perceived the unrest in Scotland as a rebellion against his authority, precipitating the First Bishops' War in 1639. He did not seek subsidies from the English Parliament to wage war, instead raising an army without parliamentary aid and marching to Berwick-upon-Tweed, on the Scottish border. The army did not engage the Covenanters, as the king feared the defeat of his forces, whom he believed to be significantly outnumbered by the Scots. In the Treaty of Berwick, Charles regained custody of his Scottish fortresses and secured the dissolution of the Covenanters' interim government, albeit at the decisive concession that both the Scottish Parliament and General Assembly of the Scottish Church were called.
The military failure in the First Bishops' War caused a financial and diplomatic crisis for Charles that deepened when his efforts to raise funds from Spain while simultaneously continuing his support for his Palatine relatives led to the public humiliation of the Battle of the Downs, where the Dutch destroyed a Spanish bullion fleet off the coast of Kent in sight of the impotent English navy.
Charles continued peace negotiations with the Scots in a bid to gain time before launching a new military campaign. Because of his financial weakness, he was forced to call Parliament into session in an attempt to raise funds for such a venture. Both the English and Irish parliaments were summoned in the early months of 1640. In March 1640, the Irish Parliament duly voted in a subsidy of £180,000 with the promise to raise an army 9,000 strong by the end of May. But in the English general election in March, court candidates fared badly, and Charles's dealings with the English Parliament in April quickly reached stalemate. The earls of Northumberland and Strafford attempted to broker a compromise whereby the king would agree to forfeit ship money in exchange for £650,000 (although the cost of the coming war was estimated at around £1 million). Nevertheless, this alone was insufficient to produce consensus in the Commons. The Parliamentarians' calls for further reforms were ignored by Charles, who still retained the support of the House of Lords. Despite the protests of the Earl of Northumberland, the Short Parliament (as it came to be known) was dissolved in May 1640, less than a month after it assembled.
By this stage the Earl of Strafford, Lord Deputy of Ireland since 1632, had emerged as Charles's right-hand man and, together with Archbishop Laud, pursued a policy of "Thorough" that aimed to make central royal authority more efficient and effective at the expense of local or anti-government interests. Although originally a critic of the king, Strafford defected to royal service in 1628, in part due to the Duke of Buckingham's persuasion, and had since emerged, alongside Laud, as the most influential of Charles's ministers.
Bolstered by the failure of the English Short Parliament, the Scottish Parliament declared itself capable of governing without the king's consent, and in August 1640 the Covenanter army moved into the English county of Northumberland. Following the illness of Lord Northumberland, who was the king's commander-in-chief, Charles and Strafford went north to command the English forces, despite Strafford being ill himself with a combination of gout and dysentery. The Scottish soldiery, many of whom were veterans of the Thirty Years' War, had far greater morale and training than their English counterparts. They met virtually no resistance until reaching Newcastle upon Tyne, where they defeated the English forces at the Battle of Newburn and occupied the city, as well as the neighbouring county of Durham.
As demands for a parliament grew, Charles took the unusual step of summoning a great council of peers. By the time it met, on 24 September at York, Charles had resolved to follow the almost universal advice to call a parliament. After informing the peers that a parliament would convene in November, he asked them to consider how he could acquire funds to maintain his army against the Scots in the meantime. They recommended making peace. A cessation of arms, although not a final settlement, was negotiated in the humiliating Treaty of Ripon, signed in October 1640. The treaty stated that the Scots would continue to occupy Northumberland and Durham and be paid £850 per day until peace was restored and the English Parliament recalled, which would be required to raise sufficient funds to pay the Scottish forces. Consequently, Charles summoned what later became known as the Long Parliament. Once again, his supporters fared badly at the polls. Of the 493 members of the Commons returned in November, over 350 were opposed to the king.
The Long Parliament proved just as difficult for Charles as had the Short Parliament. It assembled on 3 November 1640 and quickly began proceedings to impeach the king's leading counsellors for high treason. Strafford was taken into custody on 10 November; Laud was impeached on 18 December; Finch, now Lord Keeper of the Great Seal, was impeached the next day, and consequently fled to The Hague with Charles's permission on 21 December. To prevent the king from dissolving it at will, Parliament passed the Triennial Act, which required Parliament to be summoned at least every three years, and permitted the Lord Keeper and 12 peers to summon Parliament if the king failed to do so. The Act was coupled with a subsidy bill, and to secure the latter, Charles grudgingly granted royal assent in February 1641.
Strafford had become the principal target of the Parliamentarians, particularly John Pym, and he went on trial for high treason on 22 March 1641. But the key allegation by Sir Henry Vane that Strafford had threatened to use the Irish army to subdue England was not corroborated, and on 10 April Pym's case collapsed. Pym and his allies immediately launched a bill of attainder, which simply declared Strafford guilty and pronounced the sentence of death.
Charles assured Strafford that "upon the word of a king you shall not suffer in life, honour or fortune", and the attainder could not succeed if Charles withheld assent. Furthermore, many members and most peers opposed the attainder, not wishing, in the words of one, to "commit murder with the sword of justice". But increased tensions and an attempted coup by royalist army officers in support of Strafford and in which Charles was involved began to sway the issue. The Commons passed the bill on 20 April by a large margin (204 in favour, 59 opposed, and 230 abstained), and the Lords acquiesced (by 26 votes to 19, with 79 absent) in May. On 3 May, Parliament's Protestation attacked the "wicked counsels" of Charles's "arbitrary and tyrannical government". While those who signed the petition undertook to defend the king's "person, honour and estate", they also swore to preserve "the true reformed religion", Parliament, and the "rights and liberties of the subjects". Fearing for his family's safety in the face of unrest, Charles reluctantly assented to Strafford's attainder on 9 May after consulting his judges and bishops. Strafford was beheaded three days later.
Also in early May, Charles assented to an unprecedented Act that forbade the dissolution of the English Parliament without its consent. In the following months, ship money, fines in distraint of knighthood and excise without parliamentary consent were declared unlawful, and the Courts of Star Chamber and High Commission were abolished. All remaining forms of taxation were legalised and regulated by the Tonnage and Poundage Act. The House of Commons also launched bills attacking bishops and episcopacy, but these failed in the Lords.
Charles had made important concessions in England, and temporarily improved his position in Scotland by securing the Scots' favour on a visit from August to November 1641 during which he conceded to the official establishment of presbyterianism. But after an attempted royalist coup in Scotland, known as "The Incident", Charles's credibility was significantly undermined.
Ireland's population was split into three main sociopolitical groups: the Gaelic Irish, who were Catholic; the Old English, who were descended from medieval Normans and also predominantly Catholic; and the New English, who were Protestant settlers from England and Scotland aligned with the English Parliament and the Covenanters. Strafford's administration had improved the Irish economy and boosted tax revenue, but had done so by heavy-handedly imposing order. He had trained up a large Catholic army in support of the king and weakened the Irish Parliament's authority, while continuing to confiscate land from Catholics for Protestant settlement at the same time as promoting a Laudian Anglicanism that was anathema to presbyterians. As a result, all three groups had become disaffected. Strafford's impeachment provided a new departure for Irish politics whereby all sides joined together to present evidence against him. In a similar manner to the English Parliament, the Old English members of the Irish Parliament argued that while opposed to Strafford they remained loyal to Charles. They argued that the king had been led astray by malign counsellors, and that, moreover, a viceroy such as Strafford could emerge as a despotic figure instead of ensuring that the king was directly involved in governance.
Strafford's fall from power weakened Charles's influence in Ireland. The dissolution of the Irish army was unsuccessfully demanded three times by the English Commons during Strafford's imprisonment, until lack of money eventually forced Charles to disband the army at the end of Strafford's trial. Disputes over the transfer of land ownership from native Catholic to settler Protestant, particularly in relation to the plantation of Ulster, coupled with resentment at moves to ensure the Irish Parliament was subordinate to the Parliament of England, sowed the seeds of rebellion. When armed conflict arose between the Gaelic Irish and New English in late October 1641, the Old English sided with the Gaelic Irish while simultaneously professing their loyalty to the king.
In November 1641, the House of Commons passed the Grand Remonstrance, a long list of grievances against actions by Charles's ministers committed since the beginning of his reign (that were asserted to be part of a grand Catholic conspiracy of which the king was an unwitting member), but it was in many ways a step too far by Pym and passed by only 11 votes, 159 to 148. Furthermore, the Remonstrance had very little support in the House of Lords, which the Remonstrance attacked. The tension was heightened by news of the Irish rebellion, coupled with inaccurate rumours of Charles's complicity. Throughout November, a series of alarmist pamphlets published stories of atrocities in Ireland, including massacres of New English settlers by the native Irish who could not be controlled by the Old English lords. Rumours of "papist" conspiracies circulated in England, and English anti-Catholic opinion was strengthened, damaging Charles's reputation and authority. The English Parliament distrusted Charles's motivations when he called for funds to put down the Irish rebellion; many members of the Commons suspected that forces he raised might later be used against Parliament itself. Pym's Militia Bill was intended to wrest control of the army from the king, but it did not have the support of the Lords, let alone Charles. Instead, the Commons passed the bill as an ordinance, which they claimed did not require royal assent. The Militia Ordinance appears to have prompted more members of the Lords to support the king. In an attempt to strengthen his position, Charles generated great antipathy in London, which was already fast falling into lawlessness, when he placed the Tower of London under the command of Colonel Thomas Lunsford, an infamous, albeit efficient, career officer. When rumours reached Charles that Parliament intended to impeach his wife for supposedly conspiring with the Irish rebels, he decided to take drastic action.
Charles suspected, probably correctly, that some members of the English Parliament had colluded with the invading Scots. On 3 January 1642, Charles directed Parliament to give up five specific members of the Commons—Pym, John Hampden, Denzil Holles, William Strode and Sir Arthur Haselrig—and one peer, Lord Mandeville, on the grounds of high treason. When Parliament refused, it was possibly Henrietta Maria who persuaded Charles to arrest the five members by force, which he resolved to do personally. But news of the warrant reached Parliament ahead of him, and the wanted men slipped away by boat shortly before Charles entered the House of Commons with an armed guard on 4 January. Having displaced Speaker William Lenthall from his chair, the king asked him where the MPs had fled. Lenthall, on his knees, famously replied, "May it please your Majesty, I have neither eyes to see nor tongue to speak in this place but as the House is pleased to direct me, whose servant I am here." Charles abjectly declared "all my birds have flown", and was forced to retire empty-handed.
The botched arrest attempt was politically disastrous for Charles. No English sovereign had ever entered the House of Commons, and his unprecedented invasion of the chamber to arrest its members was considered a grave breach of parliamentary privilege. In one stroke Charles destroyed his supporters' efforts to portray him as a defence against innovation and disorder.
Parliament quickly seized London, and Charles fled the capital for Hampton Court Palace on 10 January, moving two days later to Windsor Castle. After sending his wife and eldest daughter to safety abroad in February, he travelled northwards, hoping to seize the military arsenal at Hull. To his dismay, he was rebuffed by the town's Parliamentary governor, Sir John Hotham, who refused him entry in April, and Charles was forced to withdraw.
In mid-1642, both sides began to arm. Charles raised an army using the medieval method of commission of array, and Parliament called for volunteers for its militia. The negotiations proved futile, and Charles raised the royal standard in Nottingham on 22 August 1642. By then, his forces controlled roughly the Midlands, Wales, the West Country and northern England. He set up his court at Oxford. Parliament controlled London, the south-east and East Anglia, as well as the English navy.
After a few skirmishes, the opposing forces met in earnest at Edgehill, on 23 October 1642. Charles's nephew Prince Rupert of the Rhine disagreed with the battle strategy of the royalist commander Lord Lindsey, and Charles sided with Rupert. Lindsey resigned, leaving Charles to assume overall command assisted by Lord Forth. Rupert's cavalry successfully charged through the parliamentary ranks, but instead of swiftly returning to the field, rode off to plunder the parliamentary baggage train. Lindsey, acting as a colonel, was wounded and bled to death without medical attention. The battle ended inconclusively as the daylight faded.
In his own words, the experience of battle had left Charles "exceedingly and deeply grieved". He regrouped at Oxford, turning down Rupert's suggestion of an immediate attack on London. After a week, he set out for the capital on 3 November, capturing Brentford on the way while simultaneously continuing to negotiate with civic and parliamentary delegations. At Turnham Green on the outskirts of London, the royalist army met resistance from the city militia, and faced with a numerically superior force, Charles ordered a retreat. He overwintered in Oxford, strengthening the city's defences and preparing for the next season's campaign. Peace talks between the two sides collapsed in April.
The war continued indecisively over the next couple of years, and Henrietta Maria returned to Britain for 17 months from February 1643. After Rupert captured Bristol in July 1643, Charles visited the port city and laid siege to Gloucester, further up the river Severn. His plan to undermine the city walls failed due to heavy rain, and on the approach of a parliamentary relief force, Charles lifted the siege and withdrew to Sudeley Castle. The parliamentary army turned back towards London, and Charles set off in pursuit. The two armies met at Newbury, Berkshire, on 20 September. Just as at Edgehill, the battle stalemated at nightfall, and the armies disengaged. In January 1644, Charles summoned a Parliament at Oxford, which was attended by about 40 peers and 118 members of the Commons; all told, the Oxford Parliament, which sat until March 1645, was supported by the majority of peers and about a third of the Commons. Charles became disillusioned by the assembly's ineffectiveness, calling it a "mongrel" in private letters to his wife.
In 1644, Charles remained in the southern half of England while Rupert rode north to relieve Newark and York, which were under threat from parliamentary and Scottish Covenanter armies. Charles was victorious at the battle of Cropredy Bridge in late June, but the royalists in the north were defeated at the battle of Marston Moor just a few days later. The king continued his campaign in the south, encircling and disarming the parliamentary army of the Earl of Essex. Returning northwards to his base at Oxford, he fought at Newbury for a second time before the winter closed in; the battle ended indecisively. Attempts to negotiate a settlement over the winter, while both sides rearmed and reorganised, were again unsuccessful.
At the battle of Naseby on 14 June 1645, Rupert's horsemen again mounted a successful charge against the flank of Parliament's New Model Army, but elsewhere on the field, opposing forces pushed Charles's troops back. Attempting to rally his men, Charles rode forward, but as he did so, Lord Carnwath seized his bridle and pulled him back, fearing for the king's safety. The royalist soldiers misinterpreted Carnwath's action as a signal to move back, leading to a collapse of their position. The military balance tipped decisively in favour of Parliament. There followed a series of defeats for the royalists, and then the siege of Oxford, from which Charles escaped (disguised as a servant) in April 1646. He put himself into the hands of the Scottish presbyterian army besieging Newark, and was taken northwards to Newcastle upon Tyne. After nine months of negotiations, the Scots finally arrived at an agreement with the English Parliament: in exchange for £100,000, and the promise of more money in the future, the Scots withdrew from Newcastle and delivered Charles to the parliamentary commissioners in January 1647.
Parliament held Charles under house arrest at Holdenby House in Northamptonshire until Cornet George Joyce took him by threat of force from Holdenby on 3 June in the name of the New Model Army. By this time, mutual suspicion had developed between Parliament, which favoured army disbandment and presbyterianism, and the New Model Army, which was primarily officered by congregationalist Independents, who sought a greater political role. Charles was eager to exploit the widening divisions, and apparently viewed Joyce's actions as an opportunity rather than a threat. He was taken first to Newmarket, at his own suggestion, and then transferred to Oatlands and subsequently Hampton Court, while more fruitless negotiations took place. By November, he determined that it would be in his best interests to escape—perhaps to France, Southern England or Berwick-upon-Tweed, near the Scottish border. He fled Hampton Court on 11 November, and from the shores of Southampton Water made contact with Colonel Robert Hammond, Parliamentary Governor of the Isle of Wight, whom he apparently believed to be sympathetic. But Hammond confined Charles in Carisbrooke Castle and informed Parliament that Charles was in his custody.
From Carisbrooke, Charles continued to try to bargain with the various parties. In direct contrast to his previous conflict with the Scottish Kirk, on 26 December 1647 he signed a secret treaty with the Scots. Under the agreement, called the "Engagement", the Scots undertook to invade England on Charles's behalf and restore him to the throne on condition that presbyterianism be established in England for three years.
The royalists rose in May 1648, igniting the Second Civil War, and as agreed with Charles, the Scots invaded England. Uprisings in Kent, Essex, and Cumberland, and a rebellion in South Wales, were put down by the New Model Army, and with the defeat of the Scots at the Battle of Preston in August 1648, the royalists lost any chance of winning the war.
Charles's only recourse was to return to negotiations, which were held at Newport on the Isle of Wight. On 5 December 1648, Parliament voted 129 to 83 to continue negotiating with the king, but Oliver Cromwell and the army opposed any further talks with someone they viewed as a bloody tyrant and were already taking action to consolidate their power. Hammond was replaced as Governor of the Isle of Wight on 27 November, and placed in the custody of the army the following day. In Pride's Purge on 6 and 7 December, the members of Parliament out of sympathy with the military were arrested or excluded by Colonel Thomas Pride, while others stayed away voluntarily. The remaining members formed the Rump Parliament. It was effectively a military coup.
Charles was moved to Hurst Castle at the end of 1648, and thereafter to Windsor Castle. In January 1649, the Rump House of Commons indicted him for treason; the House of Lords rejected the charge. The idea of trying a king was novel. The Chief Justices of the three common law courts of England—Henry Rolle, Oliver St John and John Wilde—all opposed the indictment as unlawful. The Rump Commons declared itself capable of legislating alone, passed a bill creating a separate court for Charles's trial, and declared the bill an act without the need for royal assent. The High Court of Justice established by the Act consisted of 135 commissioners, but many either refused to serve or chose to stay away. Only 68 (all firm Parliamentarians) attended Charles's trial on charges of high treason and "other high crimes" that began on 20 January 1649 in Westminster Hall. John Bradshaw acted as President of the Court, and the prosecution was led by Solicitor General John Cook.
Charles was accused of treason against England by using his power to pursue his personal interest rather than the good of the country. The charge stated that he was devising "a wicked design to erect and uphold in himself an unlimited and tyrannical power to rule according to his will, and to overthrow the rights and liberties of the people". In carrying this out he had "traitorously and maliciously levied war against the present Parliament, and the people therein represented", and that the "wicked designs, wars, and evil practices of him, the said Charles Stuart, have been, and are carried on for the advancement and upholding of a personal interest of will, power, and pretended prerogative to himself and his family, against the public interest, common right, liberty, justice, and peace of the people of this nation." Presaging the modern concept of command responsibility, the indictment held him "guilty of all the treasons, murders, rapines, burnings, spoils, desolations, damages and mischiefs to this nation, acted and committed in the said wars, or occasioned thereby." An estimated 300,000 people, or 6% of the population, died during the war.
Over the first three days of the trial, whenever Charles was asked to plead, he refused, stating his objection with the words: "I would know by what power I am called hither, by what lawful authority...?" He claimed that no court had jurisdiction over a monarch, that his own authority to rule had been given to him by God and by the traditional laws of England, and that the power wielded by those trying him was only that of force of arms. Charles insisted that the trial was illegal, explaining that,
no earthly power can justly call me (who am your King) in question as a delinquent ... this day's proceeding cannot be warranted by God's laws; for, on the contrary, the authority of obedience unto Kings is clearly warranted, and strictly commanded in both the Old and New Testament ... for the law of this land, I am no less confident, that no learned lawyer will affirm that an impeachment can lie against the King, they all going in his name: and one of their maxims is, that the King can do no wrong ... the higher House is totally excluded; and for the House of Commons, it is too well known that the major part of them are detained or deterred from sitting ... the arms I took up were only to defend the fundamental laws of this kingdom against those who have supposed my power hath totally changed the ancient government.
The court, by contrast, challenged the doctrine of sovereign immunity and proposed that "the King of England was not a person, but an office whose every occupant was entrusted with a limited power to govern 'by and according to the laws of the land and not otherwise'."
At the end of the third day, Charles was removed from the court, which then heard over 30 witnesses against him in his absence over the next two days, and on 26 January condemned him to death. The next day, the king was brought before a public session of the commission, declared guilty, and sentenced. The judgement read, "For all which treasons and crimes this court doth adjudge that he, the said Charles Stuart, as a tyrant, traitor, murderer, and public enemy to the good people of this nation, shall be put to death by the severing of his head from his body." Fifty-nine of the commissioners signed Charles's death warrant.
Charles's execution was scheduled for Tuesday, 30 January 1649. Two of his children remained in England under the control of the Parliamentarians: Elizabeth and Henry. They were permitted to visit him on 29 January, and he bade them a tearful farewell. The next morning, he called for two shirts to prevent the cold weather causing any noticeable shivers that the crowd could have mistaken for fear: "the season is so sharp as probably may make me shake, which some observers may imagine proceeds from fear. I would have no such imputation."
He walked under guard from St James's Palace, where he had been confined, to the Palace of Whitehall, where an execution scaffold had been erected in front of the Banqueting House. Charles was separated from spectators by large ranks of soldiers, and his last speech reached only those with him on the scaffold. He blamed his fate on his failure to prevent the execution of his loyal servant Strafford: "An unjust sentence that I suffered to take effect, is punished now by an unjust sentence on me." He declared that he had desired the liberty and freedom of the people as much as any, "but I must tell you that their liberty and freedom consists in having government ... It is not their having a share in the government; that is nothing appertaining unto them. A subject and a sovereign are clean different things." He continued, "I shall go from a corruptible to an incorruptible Crown, where no disturbance can be."
At about 2:00 p.m., Charles put his head on the block after saying a prayer and signalled the executioner when he was ready by stretching out his hands; he was then beheaded in one clean stroke. According to observer Philip Henry, a moan "as I never heard before and desire I may never hear again" rose from the assembled crowd, some of whom then dipped their handkerchiefs in the king's blood as a memento.
The executioner was masked and disguised, and there is debate over his identity. The commissioners approached Richard Brandon, the common hangman of London, but he refused, at least at first, despite being offered £200 – a considerably large sum for the time. It is possible he relented and undertook the commission after being threatened with death, but others have been named as potential candidates, including George Joyce, William Hulet and Hugh Peters. The clean strike, confirmed by an examination of the king's body at Windsor in 1813, suggests that the execution was carried out by an experienced headsman.
It was common practice for the severed head of a traitor to be held up and exhibited to the crowd with the words "Behold the head of a traitor!" Charles's head was exhibited, but those words were not used, possibly because the executioner did not want his voice recognised. On the day after the execution, the king's head was sewn back onto his body, which was then embalmed and placed in a lead coffin.
The commission refused to allow Charles's burial at Westminster Abbey, so his body was conveyed to Windsor on the night of 7 February. He was buried in private on 9 February 1649 in the Henry VIII vault in the chapel's quire, alongside the coffins of Henry VIII and Henry's third wife, Jane Seymour, in St George's Chapel, Windsor Castle. The king's son, Charles II, later planned for an elaborate royal mausoleum to be erected in Hyde Park, London, but it was never built.
Ten days after Charles's execution, on the day of his interment, a memoir purportedly written by him appeared for sale. This book, the Eikon Basilike (Greek for the "Royal Portrait"), contained an apologia for royal policies, and proved an effective piece of royalist propaganda. John Milton wrote a Parliamentary rejoinder, the Eikonoklastes ("The Iconoclast"), but the response made little headway against the pathos of the royalist book. Anglicans and royalists fashioned an image of martyrdom, and in the Convocations of Canterbury and York of 1660 King Charles the Martyr was added to the Church of England's liturgical calendar. High church Anglicans held special services on the anniversary of his death. Churches, such as those at Falmouth and Tunbridge Wells, and Anglican devotional societies such as the Society of King Charles the Martyr, were founded in his honour.
With the monarchy overthrown, England became a republic or "Commonwealth". The House of Lords was abolished by the Rump Commons, and executive power was assumed by a Council of State. All significant military opposition in Britain and Ireland was extinguished by the forces of Oliver Cromwell in the Anglo-Scottish War and the Cromwellian conquest of Ireland. Cromwell forcibly disbanded the Rump Parliament in 1653, thereby establishing the Protectorate with himself as Lord Protector. Upon his death in 1658, he was briefly succeeded by his ineffective son, Richard. Parliament was reinstated, and the monarchy was restored to Charles I's eldest son, Charles II, in 1660.
Charles's unprecedented 1642 invasion of the House of Commons' chamber, a grave violation of the liberties of Parliament, and his unsuccessful attempt to arrest five Members of Parliament is commemorated annually at the State Opening of Parliament.
Partly inspired by his visit to the Spanish court in 1623, Charles became a passionate and knowledgeable art collector, amassing one of the finest art collections ever assembled. In Spain, he sat for a sketch by Velázquez, and acquired works by Titian and Correggio, among others. In England, his commissions included the ceiling of the Banqueting House, Whitehall, by Rubens and paintings by other artists from the Low Countries such as van Honthorst, Mytens, and van Dyck. His close associates, including the Duke of Buckingham and the Earl of Arundel, shared his interest and have been dubbed the Whitehall Group. In 1627 and 1628, Charles purchased the entire collection of the Duke of Mantua, which included work by Titian, Correggio, Raphael, Caravaggio, del Sarto and Mantegna. His collection grew further to encompass Bernini, Bruegel, Leonardo, Holbein, Hollar, Tintoretto and Veronese, and self-portraits by both Dürer and Rembrandt. By Charles's death, there were an estimated 1,760 paintings, most of which were sold and dispersed by Parliament.
In the words of John Philipps Kenyon, "Charles Stuart is a man of contradictions and controversy". Revered by high Tories who considered him a saintly martyr, he was condemned by Whig historians, such as Samuel Rawson Gardiner, who thought him duplicitous and delusional. In recent decades, most historians have criticised him, the main exception being Kevin Sharpe, who offered a more sympathetic view that has not been widely adopted. Sharpe argued that the king was a dynamic man of conscience, but Barry Coward thought Charles "the most incompetent monarch of England since Henry VI", a view shared by Ronald Hutton, who called him "the worst king we have had since the Middle Ages".
Archbishop William Laud, whom Parliament beheaded during the war, described Charles as "A mild and gracious prince who knew not how to be, or how to be made, great." Charles was more sober and refined than his father, but he was intransigent. He deliberately pursued unpopular policies that brought ruin on himself. Both Charles and James were advocates of the divine right of kings, but while James's ambitions concerning absolute prerogative were tempered by compromise and consensus with his subjects, Charles believed he had no need to compromise or even to explain his actions. He thought he was answerable only to God. "Princes are not bound to give account of their actions," he wrote, "but to God alone".
The official style of Charles I as king in England was "Charles, by the Grace of God, King of England, Scotland, France and Ireland, Defender of the Faith, etc." The style "of France" was only nominal, and was used by every English monarch from Edward III to George III, regardless of the amount of French territory actually controlled. The authors of his death warrant called him "Charles Stuart, King of England".
As Duke of York, Charles bore the royal arms of the kingdom differenced by a label Argent of three points, each bearing three torteaux Gules. As the Prince of Wales, he bore the royal arms differenced by a plain label Argent of three points. As king, Charles bore the royal arms undifferenced: Quarterly, I and IV Grandquarterly, Azure three fleurs-de-lis Or (for France) and Gules three lions passant guardant in pale Or (for England); II Or a lion rampant within a tressure flory-counter-flory Gules (for Scotland); III Azure a harp Or stringed Argent (for Ireland). In Scotland, the Scottish arms were placed in the first and fourth quarters with the English and French arms in the second quarter.
Charles had nine children, two of whom eventually succeeded as king, and two of whom died at or shortly after birth. | [
{
"paragraph_id": 0,
"text": "Charles I (19 November 1600 – 30 January 1649) was King of England, Scotland, and Ireland from 27 March 1625 until his execution in 1649.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Charles was born into the House of Stuart as the second son of King James VI of Scotland, but after his father inherited the English throne in 1603, he moved to England, where he spent much of the rest of his life. He became heir apparent to the kingdoms of England, Scotland, and Ireland in 1612 upon the death of his elder brother, Henry Frederick, Prince of Wales. An unsuccessful and unpopular attempt to marry him to Infanta Maria Anna of Spain culminated in an eight-month visit to Spain in 1623 that demonstrated the futility of the marriage negotiation. Two years later, shortly after his accession, he married Henrietta Maria of France.",
"title": ""
},
{
"paragraph_id": 2,
"text": "After his succession in 1625, Charles quarrelled with the English Parliament, which sought to curb his royal prerogative. He believed in the divine right of kings, and was determined to govern according to his own conscience. Many of his subjects opposed his policies, in particular the levying of taxes without parliamentary consent, and perceived his actions as those of a tyrannical absolute monarch. His religious policies, coupled with his marriage to a Roman Catholic, generated antipathy and mistrust from Reformed religious groups such as the English Puritans and Scottish Covenanters, who thought his views too Catholic. He supported high church Anglican ecclesiastics and failed to aid continental Protestant forces successfully during the Thirty Years' War. His attempts to force the Church of Scotland to adopt high Anglican practices led to the Bishops' Wars, strengthened the position of the English and Scottish parliaments, and helped precipitate his own downfall.",
"title": ""
},
{
"paragraph_id": 3,
"text": "From 1642, Charles fought the armies of the English and Scottish parliaments in the English Civil War. After his defeat in 1645 at the hands of the Parliamentarian New Model Army, he fled north from his base at Oxford. Charles surrendered to a Scottish force and after lengthy negotiations between the English and Scottish parliaments he was handed over to the Long Parliament in London. Charles refused to accept his captors' demands for a constitutional monarchy, and temporarily escaped captivity in November 1647. Re-imprisoned on the Isle of Wight, he forged an alliance with Scotland, but by the end of 1648, the New Model Army had consolidated its control over England. Charles was tried, convicted, and executed for high treason in January 1649. The monarchy was abolished and the Commonwealth of England was established as a republic. The monarchy would be restored to Charles's son Charles II in 1660.",
"title": ""
},
{
"paragraph_id": 4,
"text": "The second son of King James VI of Scotland and Anne of Denmark, Charles was born in Dunfermline Palace, Fife, on 19 November 1600. At a Protestant ceremony in the Chapel Royal of Holyrood Palace in Edinburgh on 23 December 1600, he was baptised by David Lindsay, Bishop of Ross, and created Duke of Albany, the traditional title of the second son of the king of Scotland, with the subsidiary titles of Marquess of Ormond, Earl of Ross and Lord Ardmannoch.",
"title": "Early life"
},
{
"paragraph_id": 5,
"text": "James VI was the first cousin twice removed of Queen Elizabeth I of England, and when she died childless in March 1603, he became King of England as James I. Charles was a weak and sickly infant, and while his parents and older siblings left for England in April and early June that year, due to his fragile health, he remained in Scotland with his father's friend Lord Fyvie appointed as his guardian.",
"title": "Early life"
},
{
"paragraph_id": 6,
"text": "By 1604, when Charles was three-and-a-half, he was able to walk the length of the great hall at Dunfermline Palace without assistance, and it was decided that he was strong enough to journey to England to be reunited with his family. In mid-July 1604, he left Dunfermline for England, where he was to spend most of the rest of his life. In England, Charles was placed under the charge of Elizabeth, Lady Carey, the wife of courtier Sir Robert Carey, who put him in boots made of Spanish leather and brass to help strengthen his weak ankles. His speech development was also slow, and he had a stammer for the rest of his life.",
"title": "Early life"
},
{
"paragraph_id": 7,
"text": "In January 1605, Charles was created Duke of York, as is customary in the case of the English sovereign's second son, and made a Knight of the Bath. Thomas Murray, a presbyterian Scot, was appointed as a tutor. Charles learnt the usual subjects of classics, languages, mathematics and religion. In 1611, he was made a Knight of the Garter.",
"title": "Early life"
},
{
"paragraph_id": 8,
"text": "Eventually, Charles apparently conquered his physical infirmity, which might have been caused by rickets. He became an adept horseman and marksman, and took up fencing. Even so, his public profile remained low in contrast to that of his physically stronger and taller elder brother, Henry Frederick, Prince of Wales, whom Charles adored and attempted to emulate. But in early November 1612, Henry died at the age of 18 of what is suspected to have been typhoid (or possibly porphyria). Charles, who turned 12 two weeks later, became heir apparent. As the eldest surviving son of the sovereign, he automatically gained several titles, including Duke of Cornwall and Duke of Rothesay. In November 1616, he was created Prince of Wales and Earl of Chester.",
"title": "Early life"
},
{
"paragraph_id": 9,
"text": "In 1613, Charles's sister Elizabeth married Frederick V, Elector Palatine, and moved to Heidelberg. In 1617, the Habsburg Archduke Ferdinand of Austria, a Catholic, was elected king of Bohemia. The next year, the Bohemians rebelled, defenestrating the Catholic governors. In August 1619, the Bohemian diet chose Frederick, who led the Protestant Union, as their monarch, while Ferdinand was elected Holy Roman Emperor in the imperial election. Frederick's acceptance of the Bohemian crown in defiance of the emperor marked the beginning of the turmoil that would develop into the Thirty Years' War. The conflict, originally confined to Bohemia, spiralled into a wider European war, which the English Parliament and public quickly grew to see as a polarised continental struggle between Catholics and Protestants. In 1620, King Frederick was defeated at the Battle of White Mountain near Prague and his hereditary lands in the Electoral Palatinate were invaded by a Habsburg force from the Spanish Netherlands. James, however, had been seeking marriage between Prince Charles and Ferdinand's niece, Infanta Maria Anna of Spain, and began to see the Spanish match as a possible diplomatic means of achieving peace in Europe.",
"title": "Heir apparent"
},
{
"paragraph_id": 10,
"text": "Unfortunately for James, negotiation with Spain proved unpopular with both the public and James's court. The English Parliament was actively hostile towards Spain and Catholicism, and thus, when called by James in 1621, the members hoped for an enforcement of recusancy laws, a naval campaign against Spain, and a Protestant marriage for the Prince of Wales. James's Lord Chancellor, Francis Bacon, was impeached before the House of Lords for corruption. The impeachment was the first since 1459 without the king's official sanction in the form of a bill of attainder. The incident set an important precedent as the process of impeachment would later be used against Charles and his supporters the Duke of Buckingham, Archbishop William Laud, and the Earl of Strafford. James insisted that the House of Commons be concerned exclusively with domestic affairs, while the members protested that they had the privilege of free speech within the Commons' walls, demanding war with Spain and a Protestant princess of Wales. Like his father, Charles considered discussion of his marriage in the Commons impertinent and an infringement of his father's royal prerogative. In January 1622, James dissolved Parliament, angry at what he perceived as the members' impudence and intransigence.",
"title": "Heir apparent"
},
{
"paragraph_id": 11,
"text": "Charles and Buckingham, James's favourite and a man who had great influence over the prince, travelled incognito to Spain in February 1623 to try to reach agreement on the long-pending Spanish match. The trip was an embarrassing failure. The infanta thought Charles little more than an infidel, and the Spanish at first demanded that he convert to Catholicism as a condition of the match. They insisted on toleration of Catholics in England and the repeal of the English penal laws, which Charles knew Parliament would not agree to, and that the infanta remain in Spain for a year after any wedding to ensure that England complied with all the treaty's terms. A personal quarrel erupted between Buckingham and the Count of Olivares, the Spanish chief minister, and so Charles conducted the ultimately futile negotiations personally. When he returned to London in October, without a bride and to a rapturous and relieved public welcome, he and Buckingham pushed the reluctant James to declare war on Spain.",
"title": "Heir apparent"
},
{
"paragraph_id": 12,
"text": "With the encouragement of his Protestant advisers, James summoned the English Parliament in 1624 to request subsidies for a war. Charles and Buckingham supported the impeachment of the Lord Treasurer, Lionel Cranfield, 1st Earl of Middlesex, who opposed war on grounds of cost and quickly fell in much the same manner Bacon had. James told Buckingham he was a fool, and presciently warned Charles that he would live to regret the revival of impeachment as a parliamentary tool. An underfunded makeshift army under Ernst von Mansfeld set off to recover the Palatinate, but it was so poorly provisioned that it never advanced beyond the Dutch coast.",
"title": "Heir apparent"
},
{
"paragraph_id": 13,
"text": "By 1624, the increasingly ill James was finding it difficult to control Parliament. By the time of his death in March 1625, Charles and Buckingham had already assumed de facto control of the kingdom.",
"title": "Heir apparent"
},
{
"paragraph_id": 14,
"text": "With the failure of the Spanish match, Charles and Buckingham turned their attention to France. On 1 May 1625 Charles was married by proxy to the 15-year-old French princess Henrietta Maria in front of the doors of Notre Dame de Paris. He had seen her in Paris while en route to Spain. They met in person on 13 June 1625 in Canterbury. Charles delayed the opening of his first Parliament until after the marriage was consummated, to forestall any opposition. Many members of the Commons opposed his marriage to a Catholic, fearing that he would lift restrictions on Catholic recusants and undermine the official establishment of the reformed Church of England. Charles told Parliament that he would not relax religious restrictions, but promised to do exactly that in a secret marriage treaty with his brother-in-law Louis XIII of France. Moreover, the treaty loaned to the French seven English naval ships that were used to suppress the Protestant Huguenots at La Rochelle in September 1625. Charles was crowned on 2 February 1626 at Westminster Abbey, but without his wife at his side, because she refused to participate in a Protestant religious ceremony.",
"title": "Early reign"
},
{
"paragraph_id": 15,
"text": "Distrust of Charles's religious policies increased with his support of a controversial anti-Calvinist ecclesiastic, Richard Montagu, who was in disrepute among the Puritans. In his pamphlet A New Gag for an Old Goose (1624), a reply to the Catholic pamphlet A New Gag for the New Gospel, Montagu argued against Calvinist predestination, the doctrine that God preordained salvation and damnation. Anti-Calvinists—known as Arminians—believed that people could influence their fates by exercising free will. Arminian divines had been one of the few sources of support for Charles's proposed Spanish marriage. With King James's support, Montagu produced another pamphlet, Appello Caesarem, published in 1625 shortly after James's death and Charles's accession. To protect Montagu from the stricture of Puritan members of Parliament, Charles made him a royal chaplain, heightening many Puritans' suspicions that Charles favoured Arminianism as a clandestine attempt to aid Catholicism's resurgence.",
"title": "Early reign"
},
{
"paragraph_id": 16,
"text": "Rather than direct involvement in the European land war, the English Parliament preferred a relatively inexpensive naval attack on Spanish colonies in the New World, hoping for the capture of the Spanish treasure fleets. Parliament voted to grant a subsidy of £140,000, an insufficient sum for Charles's war plans. Moreover, the House of Commons limited its authorisation for royal collection of tonnage and poundage (two varieties of customs duties) to a year, although previous sovereigns since Henry VI had been granted the right for life. In this manner, Parliament could delay approval of the rates until after a full-scale review of customs revenue. The bill made no progress in the House of Lords past its first reading. Although no Parliamentary Act for the levy of tonnage and poundage was obtained, Charles continued to collect the duties.",
"title": "Early reign"
},
{
"paragraph_id": 17,
"text": "A poorly conceived and executed naval expedition against Spain under Buckingham's leadership went badly, and the House of Commons began proceedings for the impeachment of the duke. In May 1626, Charles nominated Buckingham as Chancellor of Cambridge University in a show of support, and had two members who had spoken against Buckingham—Dudley Digges and Sir John Eliot—arrested at the door of the House. The Commons was outraged by the imprisonment of two of their members, and after about a week in custody, both were released. On 12 June 1626, the Commons launched a direct protestation attacking Buckingham, stating, \"We protest before your Majesty and the whole world that until this great person be removed from intermeddling with the great affairs of state, we are out of hope of any good success; and do fear that any money we shall or can give will, through his misemployment, be turned rather to the hurt and prejudice of this your kingdom than otherwise, as by lamentable experience we have found those large supplies formerly and lately given.\" Despite the protests, Charles refused to dismiss his friend, dismissing Parliament instead.",
"title": "Early reign"
},
{
"paragraph_id": 18,
"text": "Meanwhile, domestic quarrels between Charles and Henrietta Maria were souring the early years of their marriage. Disputes over her jointure, appointments to her household, and the practice of her religion culminated in the king expelling the vast majority of her French attendants in August 1626. Despite Charles's agreement to provide the French with English ships as a condition of marrying Henrietta Maria, in 1627 he launched an attack on the French coast to defend the Huguenots at La Rochelle. The action, led by Buckingham, was ultimately unsuccessful. Buckingham's failure to protect the Huguenots—and his retreat from Saint-Martin-de-Ré—spurred Louis XIII's siege of La Rochelle and furthered the English Parliament's and people's detestation of the duke.",
"title": "Early reign"
},
{
"paragraph_id": 19,
"text": "Charles provoked further unrest by trying to raise money for the war through a \"forced loan\": a tax levied without parliamentary consent. In November 1627, the test case in the King's Bench, the \"Five Knights' Case\", found that the king had a prerogative right to imprison without trial those who refused to pay the forced loan. Summoned again in March 1628, Parliament adopted a Petition of Right on 26 May, calling upon Charles to acknowledge that he could not levy taxes without Parliament's consent, impose martial law on civilians, imprison them without due process, or quarter troops in their homes. Charles assented to the petition on 7 June, but by the end of the month he had prorogued Parliament and reasserted his right to collect customs duties without authorisation from Parliament.",
"title": "Early reign"
},
{
"paragraph_id": 20,
"text": "On 23 August 1628, Buckingham was assassinated. Charles was deeply distressed. According to Edward Hyde, 1st Earl of Clarendon, he \"threw himself upon his bed, lamenting with much passion and with abundance of tears\". He remained grieving in his room for two days. In contrast, the public rejoiced at Buckingham's death, accentuating the gulf between the court and the nation and between the Crown and the Commons. Buckingham's death effectively ended the war with Spain and eliminated his leadership as an issue, but it did not end the conflicts between Charles and Parliament. It did, however, coincide with an improvement in Charles's relationship with his wife, and by November 1628 their old quarrels were at an end. Perhaps Charles's emotional ties were transferred from Buckingham to Henrietta Maria. She became pregnant for the first time, and the bond between them grew stronger. Together, they embodied an image of virtue and family life, and their court became a model of formality and morality.",
"title": "Early reign"
},
{
"paragraph_id": 21,
"text": "In January 1629, Charles opened the second session of the English Parliament, which had been prorogued in June 1628, with a moderate speech on the tonnage and poundage issue. Members of the House of Commons began to voice opposition to Charles's policies in light of the case of John Rolle, a Member of Parliament whose goods had been confiscated for failing to pay tonnage and poundage. Many MPs viewed the imposition of the tax as a breach of the Petition of Right. When Charles ordered a parliamentary adjournment on 2 March, members held the Speaker, Sir John Finch, down in his chair so that the session could be prolonged long enough for resolutions against Catholicism, Arminianism and tonnage and poundage to be read out and acclaimed by the chamber. The provocation was too much for Charles, who dissolved Parliament and had nine parliamentary leaders, including Sir John Eliot, imprisoned over the matter, thereby turning the men into martyrs and giving popular cause to their protest.",
"title": "Personal rule"
},
{
"paragraph_id": 22,
"text": "Personal rule necessitated peace. Without the means in the foreseeable future to raise funds from Parliament for a European war, or Buckingham's help, Charles made peace with France and Spain. The next 11 years, during which Charles ruled England without a Parliament, are known as the Personal Rule or the \"eleven years' tyranny\". Ruling without Parliament was not exceptional, and was supported by precedent. But only Parliament could legally raise taxes, and without it Charles's capacity to acquire funds for his treasury was limited to his customary rights and prerogatives.",
"title": "Personal rule"
},
{
"paragraph_id": 23,
"text": "A large fiscal deficit had arisen during the reigns of Elizabeth I and James I. Notwithstanding Buckingham's short-lived campaigns against both Spain and France, Charles had little financial capacity to wage wars overseas. Throughout his reign, he was obliged to rely primarily on volunteer forces for defence and on diplomatic efforts to support his sister Elizabeth and his foreign policy objective for the restoration of the Palatinate. England was still the least taxed country in Europe, with no official excise and no regular direct taxation. To raise revenue without reconvening Parliament, Charles resurrected an all-but-forgotten law called the \"Distraint of Knighthood\", in abeyance for over a century, which required any man who earned £40 or more from land each year to present himself at the king's coronation to be knighted. Relying on this old statute, Charles fined those who had failed to attend his coronation in 1626.",
"title": "Personal rule"
},
{
"paragraph_id": 24,
"text": "The chief tax Charles imposed was a feudal levy known as ship money, which proved even more unpopular, and lucrative, than tonnage and poundage before it. Previously, collection of ship money had been authorised only during wars, and only on coastal regions. But Charles argued that there was no legal bar to collecting the tax for defence during peacetime and throughout the whole of the kingdom. Ship money, paid directly to the Treasury of the Navy, provided between £150,000 to £200,000 annually between 1634 and 1638, after which yields declined. Opposition to ship money steadily grew, but England's 12 common law judges ruled the tax within the king's prerogative, though some of them had reservations. The prosecution of John Hampden for non-payment in 1637–38 provided a platform for popular protest, and the judges found against Hampden only by the narrow margin of 7–5.",
"title": "Personal rule"
},
{
"paragraph_id": 25,
"text": "Charles also derived money by granting monopolies, despite a statute forbidding such action, which, though inefficient, raised an estimated £100,000 a year in the late 1630s. One such monopoly was for soap, pejoratively referred to as \"popish soap\" because some of its backers were Catholics. Charles also raised funds from the Scottish nobility, at the price of considerable acrimony, by the Act of Revocation (1625), whereby all gifts of royal or church land made to the nobility since 1540 were revoked, with continued ownership being subject to an annual rent. In addition, the boundaries of the royal forests in England were restored to their ancient limits as part of a scheme to maximise income by exploiting the land and fining land users within the reasserted boundaries for encroachment. The programme's focus was disafforestation and sale of forest lands for conversion to pasture and arable farming, or in the case of the Forest of Dean, development for the iron industry. Disafforestation frequently caused riots and disturbances, including those known as the Western Rising.",
"title": "Personal rule"
},
{
"paragraph_id": 26,
"text": "Against the background of this unrest, Charles faced bankruptcy in mid-1640. The City of London, preoccupied with its own grievances, refused to make any loans to him, as did foreign powers. In this extremity, in July Charles seized silver bullion worth £130,000 held in trust at the mint in the Tower of London, promising its later return at 8% interest to its owners. In August, after the East India Company refused to grant a loan, Lord Cottington seized the company's stock of pepper and spices and sold it for £60,000 (far below its market value), promising to refund the money with interest later.",
"title": "Personal rule"
},
{
"paragraph_id": 27,
"text": "Throughout Charles's reign, the English Reformation was in the forefront of political debate. Arminian theology emphasised clerical authority and the individual's ability to reject or accept salvation, which opponents viewed as heretical and a potential vehicle for the reintroduction of Catholicism. Puritan reformers considered Charles too sympathetic to Arminianism, and opposed his desire to move the Church of England in a more traditional and sacramental direction. In addition, his Protestant subjects followed the European war closely and grew increasingly dismayed by Charles's diplomacy with Spain and his failure to support the Protestant cause abroad effectively.",
"title": "Religious conflicts"
},
{
"paragraph_id": 28,
"text": "In 1633, Charles appointed William Laud Archbishop of Canterbury. They initiated a series of reforms to promote religious uniformity by restricting non-conformist preachers, insisting the liturgy be celebrated as prescribed by the Book of Common Prayer, organising the internal architecture of English churches to emphasise the sacrament of the altar, and reissuing King James's Declaration of Sports, which permitted secular activities on the sabbath. The Feoffees for Impropriations, an organisation that bought benefices and advowsons so that Puritans could be appointed to them, was dissolved. Laud prosecuted those who opposed his reforms in the Court of High Commission and the Star Chamber, the two most powerful courts in the land. The courts became feared for their censorship of opposing religious views and unpopular among the propertied classes for inflicting degrading punishments on gentlemen. For example, in 1637 William Prynne, Henry Burton and John Bastwick were pilloried, whipped and mutilated by cropping and imprisoned indefinitely for publishing anti-episcopal pamphlets.",
"title": "Religious conflicts"
},
{
"paragraph_id": 29,
"text": "When Charles attempted to impose his religious policies in Scotland he faced numerous difficulties. Although born in Scotland, Charles had become estranged from it; his first visit since early childhood was for his Scottish coronation in 1633. To the dismay of the Scots, who had removed many traditional rituals from their liturgical practice, Charles insisted that the coronation be conducted using the Anglican rite. In 1637, he ordered the use of a new prayer book in Scotland that was almost identical to the English Book of Common Prayer, without consulting either the Scottish Parliament or the Kirk. Although it had been written, under Charles's direction, by Scottish bishops, many Scots resisted it, seeing it as a vehicle to introduce Anglicanism to Scotland. On 23 July, riots erupted in Edinburgh upon the first Sunday of the prayer book's usage, and unrest spread throughout the Kirk. The public began to mobilise around a reaffirmation of the National Covenant, whose signatories pledged to uphold the reformed religion of Scotland and reject any innovations not authorised by Kirk and Parliament. When the General Assembly of the Church of Scotland met in November 1638, it condemned the new prayer book, abolished episcopal church government by bishops, and adopted presbyterian government by elders and deacons.",
"title": "Religious conflicts"
},
{
"paragraph_id": 30,
"text": "Charles perceived the unrest in Scotland as a rebellion against his authority, precipitating the First Bishops' War in 1639. He did not seek subsidies from the English Parliament to wage war, instead raising an army without parliamentary aid and marching to Berwick-upon-Tweed, on the Scottish border. The army did not engage the Covenanters, as the king feared the defeat of his forces, whom he believed to be significantly outnumbered by the Scots. In the Treaty of Berwick, Charles regained custody of his Scottish fortresses and secured the dissolution of the Covenanters' interim government, albeit at the decisive concession that both the Scottish Parliament and General Assembly of the Scottish Church were called.",
"title": "Religious conflicts"
},
{
"paragraph_id": 31,
"text": "The military failure in the First Bishops' War caused a financial and diplomatic crisis for Charles that deepened when his efforts to raise funds from Spain while simultaneously continuing his support for his Palatine relatives led to the public humiliation of the Battle of the Downs, where the Dutch destroyed a Spanish bullion fleet off the coast of Kent in sight of the impotent English navy.",
"title": "Religious conflicts"
},
{
"paragraph_id": 32,
"text": "Charles continued peace negotiations with the Scots in a bid to gain time before launching a new military campaign. Because of his financial weakness, he was forced to call Parliament into session in an attempt to raise funds for such a venture. Both the English and Irish parliaments were summoned in the early months of 1640. In March 1640, the Irish Parliament duly voted in a subsidy of £180,000 with the promise to raise an army 9,000 strong by the end of May. But in the English general election in March, court candidates fared badly, and Charles's dealings with the English Parliament in April quickly reached stalemate. The earls of Northumberland and Strafford attempted to broker a compromise whereby the king would agree to forfeit ship money in exchange for £650,000 (although the cost of the coming war was estimated at around £1 million). Nevertheless, this alone was insufficient to produce consensus in the Commons. The Parliamentarians' calls for further reforms were ignored by Charles, who still retained the support of the House of Lords. Despite the protests of the Earl of Northumberland, the Short Parliament (as it came to be known) was dissolved in May 1640, less than a month after it assembled.",
"title": "Religious conflicts"
},
{
"paragraph_id": 33,
"text": "By this stage the Earl of Strafford, Lord Deputy of Ireland since 1632, had emerged as Charles's right-hand man and, together with Archbishop Laud, pursued a policy of \"Thorough\" that aimed to make central royal authority more efficient and effective at the expense of local or anti-government interests. Although originally a critic of the king, Strafford defected to royal service in 1628, in part due to the Duke of Buckingham's persuasion, and had since emerged, alongside Laud, as the most influential of Charles's ministers.",
"title": "Religious conflicts"
},
{
"paragraph_id": 34,
"text": "Bolstered by the failure of the English Short Parliament, the Scottish Parliament declared itself capable of governing without the king's consent, and in August 1640 the Covenanter army moved into the English county of Northumberland. Following the illness of Lord Northumberland, who was the king's commander-in-chief, Charles and Strafford went north to command the English forces, despite Strafford being ill himself with a combination of gout and dysentery. The Scottish soldiery, many of whom were veterans of the Thirty Years' War, had far greater morale and training than their English counterparts. They met virtually no resistance until reaching Newcastle upon Tyne, where they defeated the English forces at the Battle of Newburn and occupied the city, as well as the neighbouring county of Durham.",
"title": "Religious conflicts"
},
{
"paragraph_id": 35,
"text": "As demands for a parliament grew, Charles took the unusual step of summoning a great council of peers. By the time it met, on 24 September at York, Charles had resolved to follow the almost universal advice to call a parliament. After informing the peers that a parliament would convene in November, he asked them to consider how he could acquire funds to maintain his army against the Scots in the meantime. They recommended making peace. A cessation of arms, although not a final settlement, was negotiated in the humiliating Treaty of Ripon, signed in October 1640. The treaty stated that the Scots would continue to occupy Northumberland and Durham and be paid £850 per day until peace was restored and the English Parliament recalled, which would be required to raise sufficient funds to pay the Scottish forces. Consequently, Charles summoned what later became known as the Long Parliament. Once again, his supporters fared badly at the polls. Of the 493 members of the Commons returned in November, over 350 were opposed to the king.",
"title": "Religious conflicts"
},
{
"paragraph_id": 36,
"text": "The Long Parliament proved just as difficult for Charles as had the Short Parliament. It assembled on 3 November 1640 and quickly began proceedings to impeach the king's leading counsellors for high treason. Strafford was taken into custody on 10 November; Laud was impeached on 18 December; Finch, now Lord Keeper of the Great Seal, was impeached the next day, and consequently fled to The Hague with Charles's permission on 21 December. To prevent the king from dissolving it at will, Parliament passed the Triennial Act, which required Parliament to be summoned at least every three years, and permitted the Lord Keeper and 12 peers to summon Parliament if the king failed to do so. The Act was coupled with a subsidy bill, and to secure the latter, Charles grudgingly granted royal assent in February 1641.",
"title": "Long Parliament"
},
{
"paragraph_id": 37,
"text": "Strafford had become the principal target of the Parliamentarians, particularly John Pym, and he went on trial for high treason on 22 March 1641. But the key allegation by Sir Henry Vane that Strafford had threatened to use the Irish army to subdue England was not corroborated, and on 10 April Pym's case collapsed. Pym and his allies immediately launched a bill of attainder, which simply declared Strafford guilty and pronounced the sentence of death.",
"title": "Long Parliament"
},
{
"paragraph_id": 38,
"text": "Charles assured Strafford that \"upon the word of a king you shall not suffer in life, honour or fortune\", and the attainder could not succeed if Charles withheld assent. Furthermore, many members and most peers opposed the attainder, not wishing, in the words of one, to \"commit murder with the sword of justice\". But increased tensions and an attempted coup by royalist army officers in support of Strafford and in which Charles was involved began to sway the issue. The Commons passed the bill on 20 April by a large margin (204 in favour, 59 opposed, and 230 abstained), and the Lords acquiesced (by 26 votes to 19, with 79 absent) in May. On 3 May, Parliament's Protestation attacked the \"wicked counsels\" of Charles's \"arbitrary and tyrannical government\". While those who signed the petition undertook to defend the king's \"person, honour and estate\", they also swore to preserve \"the true reformed religion\", Parliament, and the \"rights and liberties of the subjects\". Fearing for his family's safety in the face of unrest, Charles reluctantly assented to Strafford's attainder on 9 May after consulting his judges and bishops. Strafford was beheaded three days later.",
"title": "Long Parliament"
},
{
"paragraph_id": 39,
"text": "Also in early May, Charles assented to an unprecedented Act that forbade the dissolution of the English Parliament without its consent. In the following months, ship money, fines in distraint of knighthood and excise without parliamentary consent were declared unlawful, and the Courts of Star Chamber and High Commission were abolished. All remaining forms of taxation were legalised and regulated by the Tonnage and Poundage Act. The House of Commons also launched bills attacking bishops and episcopacy, but these failed in the Lords.",
"title": "Long Parliament"
},
{
"paragraph_id": 40,
"text": "Charles had made important concessions in England, and temporarily improved his position in Scotland by securing the Scots' favour on a visit from August to November 1641 during which he conceded to the official establishment of presbyterianism. But after an attempted royalist coup in Scotland, known as \"The Incident\", Charles's credibility was significantly undermined.",
"title": "Long Parliament"
},
{
"paragraph_id": 41,
"text": "Ireland's population was split into three main sociopolitical groups: the Gaelic Irish, who were Catholic; the Old English, who were descended from medieval Normans and also predominantly Catholic; and the New English, who were Protestant settlers from England and Scotland aligned with the English Parliament and the Covenanters. Strafford's administration had improved the Irish economy and boosted tax revenue, but had done so by heavy-handedly imposing order. He had trained up a large Catholic army in support of the king and weakened the Irish Parliament's authority, while continuing to confiscate land from Catholics for Protestant settlement at the same time as promoting a Laudian Anglicanism that was anathema to presbyterians. As a result, all three groups had become disaffected. Strafford's impeachment provided a new departure for Irish politics whereby all sides joined together to present evidence against him. In a similar manner to the English Parliament, the Old English members of the Irish Parliament argued that while opposed to Strafford they remained loyal to Charles. They argued that the king had been led astray by malign counsellors, and that, moreover, a viceroy such as Strafford could emerge as a despotic figure instead of ensuring that the king was directly involved in governance.",
"title": "Long Parliament"
},
{
"paragraph_id": 42,
"text": "Strafford's fall from power weakened Charles's influence in Ireland. The dissolution of the Irish army was unsuccessfully demanded three times by the English Commons during Strafford's imprisonment, until lack of money eventually forced Charles to disband the army at the end of Strafford's trial. Disputes over the transfer of land ownership from native Catholic to settler Protestant, particularly in relation to the plantation of Ulster, coupled with resentment at moves to ensure the Irish Parliament was subordinate to the Parliament of England, sowed the seeds of rebellion. When armed conflict arose between the Gaelic Irish and New English in late October 1641, the Old English sided with the Gaelic Irish while simultaneously professing their loyalty to the king.",
"title": "Long Parliament"
},
{
"paragraph_id": 43,
"text": "In November 1641, the House of Commons passed the Grand Remonstrance, a long list of grievances against actions by Charles's ministers committed since the beginning of his reign (that were asserted to be part of a grand Catholic conspiracy of which the king was an unwitting member), but it was in many ways a step too far by Pym and passed by only 11 votes, 159 to 148. Furthermore, the Remonstrance had very little support in the House of Lords, which the Remonstrance attacked. The tension was heightened by news of the Irish rebellion, coupled with inaccurate rumours of Charles's complicity. Throughout November, a series of alarmist pamphlets published stories of atrocities in Ireland, including massacres of New English settlers by the native Irish who could not be controlled by the Old English lords. Rumours of \"papist\" conspiracies circulated in England, and English anti-Catholic opinion was strengthened, damaging Charles's reputation and authority. The English Parliament distrusted Charles's motivations when he called for funds to put down the Irish rebellion; many members of the Commons suspected that forces he raised might later be used against Parliament itself. Pym's Militia Bill was intended to wrest control of the army from the king, but it did not have the support of the Lords, let alone Charles. Instead, the Commons passed the bill as an ordinance, which they claimed did not require royal assent. The Militia Ordinance appears to have prompted more members of the Lords to support the king. In an attempt to strengthen his position, Charles generated great antipathy in London, which was already fast falling into lawlessness, when he placed the Tower of London under the command of Colonel Thomas Lunsford, an infamous, albeit efficient, career officer. When rumours reached Charles that Parliament intended to impeach his wife for supposedly conspiring with the Irish rebels, he decided to take drastic action.",
"title": "Long Parliament"
},
{
"paragraph_id": 44,
"text": "Charles suspected, probably correctly, that some members of the English Parliament had colluded with the invading Scots. On 3 January 1642, Charles directed Parliament to give up five specific members of the Commons—Pym, John Hampden, Denzil Holles, William Strode and Sir Arthur Haselrig—and one peer, Lord Mandeville, on the grounds of high treason. When Parliament refused, it was possibly Henrietta Maria who persuaded Charles to arrest the five members by force, which he resolved to do personally. But news of the warrant reached Parliament ahead of him, and the wanted men slipped away by boat shortly before Charles entered the House of Commons with an armed guard on 4 January. Having displaced Speaker William Lenthall from his chair, the king asked him where the MPs had fled. Lenthall, on his knees, famously replied, \"May it please your Majesty, I have neither eyes to see nor tongue to speak in this place but as the House is pleased to direct me, whose servant I am here.\" Charles abjectly declared \"all my birds have flown\", and was forced to retire empty-handed.",
"title": "Long Parliament"
},
{
"paragraph_id": 45,
"text": "The botched arrest attempt was politically disastrous for Charles. No English sovereign had ever entered the House of Commons, and his unprecedented invasion of the chamber to arrest its members was considered a grave breach of parliamentary privilege. In one stroke Charles destroyed his supporters' efforts to portray him as a defence against innovation and disorder.",
"title": "Long Parliament"
},
{
"paragraph_id": 46,
"text": "Parliament quickly seized London, and Charles fled the capital for Hampton Court Palace on 10 January, moving two days later to Windsor Castle. After sending his wife and eldest daughter to safety abroad in February, he travelled northwards, hoping to seize the military arsenal at Hull. To his dismay, he was rebuffed by the town's Parliamentary governor, Sir John Hotham, who refused him entry in April, and Charles was forced to withdraw.",
"title": "Long Parliament"
},
{
"paragraph_id": 47,
"text": "In mid-1642, both sides began to arm. Charles raised an army using the medieval method of commission of array, and Parliament called for volunteers for its militia. The negotiations proved futile, and Charles raised the royal standard in Nottingham on 22 August 1642. By then, his forces controlled roughly the Midlands, Wales, the West Country and northern England. He set up his court at Oxford. Parliament controlled London, the south-east and East Anglia, as well as the English navy.",
"title": "English Civil War"
},
{
"paragraph_id": 48,
"text": "After a few skirmishes, the opposing forces met in earnest at Edgehill, on 23 October 1642. Charles's nephew Prince Rupert of the Rhine disagreed with the battle strategy of the royalist commander Lord Lindsey, and Charles sided with Rupert. Lindsey resigned, leaving Charles to assume overall command assisted by Lord Forth. Rupert's cavalry successfully charged through the parliamentary ranks, but instead of swiftly returning to the field, rode off to plunder the parliamentary baggage train. Lindsey, acting as a colonel, was wounded and bled to death without medical attention. The battle ended inconclusively as the daylight faded.",
"title": "English Civil War"
},
{
"paragraph_id": 49,
"text": "In his own words, the experience of battle had left Charles \"exceedingly and deeply grieved\". He regrouped at Oxford, turning down Rupert's suggestion of an immediate attack on London. After a week, he set out for the capital on 3 November, capturing Brentford on the way while simultaneously continuing to negotiate with civic and parliamentary delegations. At Turnham Green on the outskirts of London, the royalist army met resistance from the city militia, and faced with a numerically superior force, Charles ordered a retreat. He overwintered in Oxford, strengthening the city's defences and preparing for the next season's campaign. Peace talks between the two sides collapsed in April.",
"title": "English Civil War"
},
{
"paragraph_id": 50,
"text": "The war continued indecisively over the next couple of years, and Henrietta Maria returned to Britain for 17 months from February 1643. After Rupert captured Bristol in July 1643, Charles visited the port city and laid siege to Gloucester, further up the river Severn. His plan to undermine the city walls failed due to heavy rain, and on the approach of a parliamentary relief force, Charles lifted the siege and withdrew to Sudeley Castle. The parliamentary army turned back towards London, and Charles set off in pursuit. The two armies met at Newbury, Berkshire, on 20 September. Just as at Edgehill, the battle stalemated at nightfall, and the armies disengaged. In January 1644, Charles summoned a Parliament at Oxford, which was attended by about 40 peers and 118 members of the Commons; all told, the Oxford Parliament, which sat until March 1645, was supported by the majority of peers and about a third of the Commons. Charles became disillusioned by the assembly's ineffectiveness, calling it a \"mongrel\" in private letters to his wife.",
"title": "English Civil War"
},
{
"paragraph_id": 51,
"text": "In 1644, Charles remained in the southern half of England while Rupert rode north to relieve Newark and York, which were under threat from parliamentary and Scottish Covenanter armies. Charles was victorious at the battle of Cropredy Bridge in late June, but the royalists in the north were defeated at the battle of Marston Moor just a few days later. The king continued his campaign in the south, encircling and disarming the parliamentary army of the Earl of Essex. Returning northwards to his base at Oxford, he fought at Newbury for a second time before the winter closed in; the battle ended indecisively. Attempts to negotiate a settlement over the winter, while both sides rearmed and reorganised, were again unsuccessful.",
"title": "English Civil War"
},
{
"paragraph_id": 52,
"text": "At the battle of Naseby on 14 June 1645, Rupert's horsemen again mounted a successful charge against the flank of Parliament's New Model Army, but elsewhere on the field, opposing forces pushed Charles's troops back. Attempting to rally his men, Charles rode forward, but as he did so, Lord Carnwath seized his bridle and pulled him back, fearing for the king's safety. The royalist soldiers misinterpreted Carnwath's action as a signal to move back, leading to a collapse of their position. The military balance tipped decisively in favour of Parliament. There followed a series of defeats for the royalists, and then the siege of Oxford, from which Charles escaped (disguised as a servant) in April 1646. He put himself into the hands of the Scottish presbyterian army besieging Newark, and was taken northwards to Newcastle upon Tyne. After nine months of negotiations, the Scots finally arrived at an agreement with the English Parliament: in exchange for £100,000, and the promise of more money in the future, the Scots withdrew from Newcastle and delivered Charles to the parliamentary commissioners in January 1647.",
"title": "English Civil War"
},
{
"paragraph_id": 53,
"text": "Parliament held Charles under house arrest at Holdenby House in Northamptonshire until Cornet George Joyce took him by threat of force from Holdenby on 3 June in the name of the New Model Army. By this time, mutual suspicion had developed between Parliament, which favoured army disbandment and presbyterianism, and the New Model Army, which was primarily officered by congregationalist Independents, who sought a greater political role. Charles was eager to exploit the widening divisions, and apparently viewed Joyce's actions as an opportunity rather than a threat. He was taken first to Newmarket, at his own suggestion, and then transferred to Oatlands and subsequently Hampton Court, while more fruitless negotiations took place. By November, he determined that it would be in his best interests to escape—perhaps to France, Southern England or Berwick-upon-Tweed, near the Scottish border. He fled Hampton Court on 11 November, and from the shores of Southampton Water made contact with Colonel Robert Hammond, Parliamentary Governor of the Isle of Wight, whom he apparently believed to be sympathetic. But Hammond confined Charles in Carisbrooke Castle and informed Parliament that Charles was in his custody.",
"title": "English Civil War"
},
{
"paragraph_id": 54,
"text": "From Carisbrooke, Charles continued to try to bargain with the various parties. In direct contrast to his previous conflict with the Scottish Kirk, on 26 December 1647 he signed a secret treaty with the Scots. Under the agreement, called the \"Engagement\", the Scots undertook to invade England on Charles's behalf and restore him to the throne on condition that presbyterianism be established in England for three years.",
"title": "English Civil War"
},
{
"paragraph_id": 55,
"text": "The royalists rose in May 1648, igniting the Second Civil War, and as agreed with Charles, the Scots invaded England. Uprisings in Kent, Essex, and Cumberland, and a rebellion in South Wales, were put down by the New Model Army, and with the defeat of the Scots at the Battle of Preston in August 1648, the royalists lost any chance of winning the war.",
"title": "English Civil War"
},
{
"paragraph_id": 56,
"text": "Charles's only recourse was to return to negotiations, which were held at Newport on the Isle of Wight. On 5 December 1648, Parliament voted 129 to 83 to continue negotiating with the king, but Oliver Cromwell and the army opposed any further talks with someone they viewed as a bloody tyrant and were already taking action to consolidate their power. Hammond was replaced as Governor of the Isle of Wight on 27 November, and placed in the custody of the army the following day. In Pride's Purge on 6 and 7 December, the members of Parliament out of sympathy with the military were arrested or excluded by Colonel Thomas Pride, while others stayed away voluntarily. The remaining members formed the Rump Parliament. It was effectively a military coup.",
"title": "English Civil War"
},
{
"paragraph_id": 57,
"text": "Charles was moved to Hurst Castle at the end of 1648, and thereafter to Windsor Castle. In January 1649, the Rump House of Commons indicted him for treason; the House of Lords rejected the charge. The idea of trying a king was novel. The Chief Justices of the three common law courts of England—Henry Rolle, Oliver St John and John Wilde—all opposed the indictment as unlawful. The Rump Commons declared itself capable of legislating alone, passed a bill creating a separate court for Charles's trial, and declared the bill an act without the need for royal assent. The High Court of Justice established by the Act consisted of 135 commissioners, but many either refused to serve or chose to stay away. Only 68 (all firm Parliamentarians) attended Charles's trial on charges of high treason and \"other high crimes\" that began on 20 January 1649 in Westminster Hall. John Bradshaw acted as President of the Court, and the prosecution was led by Solicitor General John Cook.",
"title": "Trial"
},
{
"paragraph_id": 58,
"text": "Charles was accused of treason against England by using his power to pursue his personal interest rather than the good of the country. The charge stated that he was devising \"a wicked design to erect and uphold in himself an unlimited and tyrannical power to rule according to his will, and to overthrow the rights and liberties of the people\". In carrying this out he had \"traitorously and maliciously levied war against the present Parliament, and the people therein represented\", and that the \"wicked designs, wars, and evil practices of him, the said Charles Stuart, have been, and are carried on for the advancement and upholding of a personal interest of will, power, and pretended prerogative to himself and his family, against the public interest, common right, liberty, justice, and peace of the people of this nation.\" Presaging the modern concept of command responsibility, the indictment held him \"guilty of all the treasons, murders, rapines, burnings, spoils, desolations, damages and mischiefs to this nation, acted and committed in the said wars, or occasioned thereby.\" An estimated 300,000 people, or 6% of the population, died during the war.",
"title": "Trial"
},
{
"paragraph_id": 59,
"text": "Over the first three days of the trial, whenever Charles was asked to plead, he refused, stating his objection with the words: \"I would know by what power I am called hither, by what lawful authority...?\" He claimed that no court had jurisdiction over a monarch, that his own authority to rule had been given to him by God and by the traditional laws of England, and that the power wielded by those trying him was only that of force of arms. Charles insisted that the trial was illegal, explaining that,",
"title": "Trial"
},
{
"paragraph_id": 60,
"text": "no earthly power can justly call me (who am your King) in question as a delinquent ... this day's proceeding cannot be warranted by God's laws; for, on the contrary, the authority of obedience unto Kings is clearly warranted, and strictly commanded in both the Old and New Testament ... for the law of this land, I am no less confident, that no learned lawyer will affirm that an impeachment can lie against the King, they all going in his name: and one of their maxims is, that the King can do no wrong ... the higher House is totally excluded; and for the House of Commons, it is too well known that the major part of them are detained or deterred from sitting ... the arms I took up were only to defend the fundamental laws of this kingdom against those who have supposed my power hath totally changed the ancient government.",
"title": "Trial"
},
{
"paragraph_id": 61,
"text": "The court, by contrast, challenged the doctrine of sovereign immunity and proposed that \"the King of England was not a person, but an office whose every occupant was entrusted with a limited power to govern 'by and according to the laws of the land and not otherwise'.\"",
"title": "Trial"
},
{
"paragraph_id": 62,
"text": "At the end of the third day, Charles was removed from the court, which then heard over 30 witnesses against him in his absence over the next two days, and on 26 January condemned him to death. The next day, the king was brought before a public session of the commission, declared guilty, and sentenced. The judgement read, \"For all which treasons and crimes this court doth adjudge that he, the said Charles Stuart, as a tyrant, traitor, murderer, and public enemy to the good people of this nation, shall be put to death by the severing of his head from his body.\" Fifty-nine of the commissioners signed Charles's death warrant.",
"title": "Trial"
},
{
"paragraph_id": 63,
"text": "Charles's execution was scheduled for Tuesday, 30 January 1649. Two of his children remained in England under the control of the Parliamentarians: Elizabeth and Henry. They were permitted to visit him on 29 January, and he bade them a tearful farewell. The next morning, he called for two shirts to prevent the cold weather causing any noticeable shivers that the crowd could have mistaken for fear: \"the season is so sharp as probably may make me shake, which some observers may imagine proceeds from fear. I would have no such imputation.\"",
"title": "Execution"
},
{
"paragraph_id": 64,
"text": "He walked under guard from St James's Palace, where he had been confined, to the Palace of Whitehall, where an execution scaffold had been erected in front of the Banqueting House. Charles was separated from spectators by large ranks of soldiers, and his last speech reached only those with him on the scaffold. He blamed his fate on his failure to prevent the execution of his loyal servant Strafford: \"An unjust sentence that I suffered to take effect, is punished now by an unjust sentence on me.\" He declared that he had desired the liberty and freedom of the people as much as any, \"but I must tell you that their liberty and freedom consists in having government ... It is not their having a share in the government; that is nothing appertaining unto them. A subject and a sovereign are clean different things.\" He continued, \"I shall go from a corruptible to an incorruptible Crown, where no disturbance can be.\"",
"title": "Execution"
},
{
"paragraph_id": 65,
"text": "At about 2:00 p.m., Charles put his head on the block after saying a prayer and signalled the executioner when he was ready by stretching out his hands; he was then beheaded in one clean stroke. According to observer Philip Henry, a moan \"as I never heard before and desire I may never hear again\" rose from the assembled crowd, some of whom then dipped their handkerchiefs in the king's blood as a memento.",
"title": "Execution"
},
{
"paragraph_id": 66,
"text": "The executioner was masked and disguised, and there is debate over his identity. The commissioners approached Richard Brandon, the common hangman of London, but he refused, at least at first, despite being offered £200 – a considerably large sum for the time. It is possible he relented and undertook the commission after being threatened with death, but others have been named as potential candidates, including George Joyce, William Hulet and Hugh Peters. The clean strike, confirmed by an examination of the king's body at Windsor in 1813, suggests that the execution was carried out by an experienced headsman.",
"title": "Execution"
},
{
"paragraph_id": 67,
"text": "It was common practice for the severed head of a traitor to be held up and exhibited to the crowd with the words \"Behold the head of a traitor!\" Charles's head was exhibited, but those words were not used, possibly because the executioner did not want his voice recognised. On the day after the execution, the king's head was sewn back onto his body, which was then embalmed and placed in a lead coffin.",
"title": "Execution"
},
{
"paragraph_id": 68,
"text": "The commission refused to allow Charles's burial at Westminster Abbey, so his body was conveyed to Windsor on the night of 7 February. He was buried in private on 9 February 1649 in the Henry VIII vault in the chapel's quire, alongside the coffins of Henry VIII and Henry's third wife, Jane Seymour, in St George's Chapel, Windsor Castle. The king's son, Charles II, later planned for an elaborate royal mausoleum to be erected in Hyde Park, London, but it was never built.",
"title": "Execution"
},
{
"paragraph_id": 69,
"text": "Ten days after Charles's execution, on the day of his interment, a memoir purportedly written by him appeared for sale. This book, the Eikon Basilike (Greek for the \"Royal Portrait\"), contained an apologia for royal policies, and proved an effective piece of royalist propaganda. John Milton wrote a Parliamentary rejoinder, the Eikonoklastes (\"The Iconoclast\"), but the response made little headway against the pathos of the royalist book. Anglicans and royalists fashioned an image of martyrdom, and in the Convocations of Canterbury and York of 1660 King Charles the Martyr was added to the Church of England's liturgical calendar. High church Anglicans held special services on the anniversary of his death. Churches, such as those at Falmouth and Tunbridge Wells, and Anglican devotional societies such as the Society of King Charles the Martyr, were founded in his honour.",
"title": "Legacy"
},
{
"paragraph_id": 70,
"text": "With the monarchy overthrown, England became a republic or \"Commonwealth\". The House of Lords was abolished by the Rump Commons, and executive power was assumed by a Council of State. All significant military opposition in Britain and Ireland was extinguished by the forces of Oliver Cromwell in the Anglo-Scottish War and the Cromwellian conquest of Ireland. Cromwell forcibly disbanded the Rump Parliament in 1653, thereby establishing the Protectorate with himself as Lord Protector. Upon his death in 1658, he was briefly succeeded by his ineffective son, Richard. Parliament was reinstated, and the monarchy was restored to Charles I's eldest son, Charles II, in 1660.",
"title": "Legacy"
},
{
"paragraph_id": 71,
"text": "Charles's unprecedented 1642 invasion of the House of Commons' chamber, a grave violation of the liberties of Parliament, and his unsuccessful attempt to arrest five Members of Parliament is commemorated annually at the State Opening of Parliament.",
"title": "Legacy"
},
{
"paragraph_id": 72,
"text": "Partly inspired by his visit to the Spanish court in 1623, Charles became a passionate and knowledgeable art collector, amassing one of the finest art collections ever assembled. In Spain, he sat for a sketch by Velázquez, and acquired works by Titian and Correggio, among others. In England, his commissions included the ceiling of the Banqueting House, Whitehall, by Rubens and paintings by other artists from the Low Countries such as van Honthorst, Mytens, and van Dyck. His close associates, including the Duke of Buckingham and the Earl of Arundel, shared his interest and have been dubbed the Whitehall Group. In 1627 and 1628, Charles purchased the entire collection of the Duke of Mantua, which included work by Titian, Correggio, Raphael, Caravaggio, del Sarto and Mantegna. His collection grew further to encompass Bernini, Bruegel, Leonardo, Holbein, Hollar, Tintoretto and Veronese, and self-portraits by both Dürer and Rembrandt. By Charles's death, there were an estimated 1,760 paintings, most of which were sold and dispersed by Parliament.",
"title": "Legacy"
},
{
"paragraph_id": 73,
"text": "In the words of John Philipps Kenyon, \"Charles Stuart is a man of contradictions and controversy\". Revered by high Tories who considered him a saintly martyr, he was condemned by Whig historians, such as Samuel Rawson Gardiner, who thought him duplicitous and delusional. In recent decades, most historians have criticised him, the main exception being Kevin Sharpe, who offered a more sympathetic view that has not been widely adopted. Sharpe argued that the king was a dynamic man of conscience, but Barry Coward thought Charles \"the most incompetent monarch of England since Henry VI\", a view shared by Ronald Hutton, who called him \"the worst king we have had since the Middle Ages\".",
"title": "Legacy"
},
{
"paragraph_id": 74,
"text": "Archbishop William Laud, whom Parliament beheaded during the war, described Charles as \"A mild and gracious prince who knew not how to be, or how to be made, great.\" Charles was more sober and refined than his father, but he was intransigent. He deliberately pursued unpopular policies that brought ruin on himself. Both Charles and James were advocates of the divine right of kings, but while James's ambitions concerning absolute prerogative were tempered by compromise and consensus with his subjects, Charles believed he had no need to compromise or even to explain his actions. He thought he was answerable only to God. \"Princes are not bound to give account of their actions,\" he wrote, \"but to God alone\".",
"title": "Legacy"
},
{
"paragraph_id": 75,
"text": "The official style of Charles I as king in England was \"Charles, by the Grace of God, King of England, Scotland, France and Ireland, Defender of the Faith, etc.\" The style \"of France\" was only nominal, and was used by every English monarch from Edward III to George III, regardless of the amount of French territory actually controlled. The authors of his death warrant called him \"Charles Stuart, King of England\".",
"title": "Titles, styles, honours and arms"
},
{
"paragraph_id": 76,
"text": "As Duke of York, Charles bore the royal arms of the kingdom differenced by a label Argent of three points, each bearing three torteaux Gules. As the Prince of Wales, he bore the royal arms differenced by a plain label Argent of three points. As king, Charles bore the royal arms undifferenced: Quarterly, I and IV Grandquarterly, Azure three fleurs-de-lis Or (for France) and Gules three lions passant guardant in pale Or (for England); II Or a lion rampant within a tressure flory-counter-flory Gules (for Scotland); III Azure a harp Or stringed Argent (for Ireland). In Scotland, the Scottish arms were placed in the first and fourth quarters with the English and French arms in the second quarter.",
"title": "Titles, styles, honours and arms"
},
{
"paragraph_id": 77,
"text": "Charles had nine children, two of whom eventually succeeded as king, and two of whom died at or shortly after birth.",
"title": "Issue"
}
] | Charles I was King of England, Scotland, and Ireland from 27 March 1625 until his execution in 1649. Charles was born into the House of Stuart as the second son of King James VI of Scotland, but after his father inherited the English throne in 1603, he moved to England, where he spent much of the rest of his life. He became heir apparent to the kingdoms of England, Scotland, and Ireland in 1612 upon the death of his elder brother, Henry Frederick, Prince of Wales. An unsuccessful and unpopular attempt to marry him to Infanta Maria Anna of Spain culminated in an eight-month visit to Spain in 1623 that demonstrated the futility of the marriage negotiation. Two years later, shortly after his accession, he married Henrietta Maria of France. After his succession in 1625, Charles quarrelled with the English Parliament, which sought to curb his royal prerogative. He believed in the divine right of kings, and was determined to govern according to his own conscience. Many of his subjects opposed his policies, in particular the levying of taxes without parliamentary consent, and perceived his actions as those of a tyrannical absolute monarch. His religious policies, coupled with his marriage to a Roman Catholic, generated antipathy and mistrust from Reformed religious groups such as the English Puritans and Scottish Covenanters, who thought his views too Catholic. He supported high church Anglican ecclesiastics and failed to aid continental Protestant forces successfully during the Thirty Years' War. His attempts to force the Church of Scotland to adopt high Anglican practices led to the Bishops' Wars, strengthened the position of the English and Scottish parliaments, and helped precipitate his own downfall. From 1642, Charles fought the armies of the English and Scottish parliaments in the English Civil War. After his defeat in 1645 at the hands of the Parliamentarian New Model Army, he fled north from his base at Oxford. Charles surrendered to a Scottish force and after lengthy negotiations between the English and Scottish parliaments he was handed over to the Long Parliament in London. Charles refused to accept his captors' demands for a constitutional monarchy, and temporarily escaped captivity in November 1647. Re-imprisoned on the Isle of Wight, he forged an alliance with Scotland, but by the end of 1648, the New Model Army had consolidated its control over England. Charles was tried, convicted, and executed for high treason in January 1649. The monarchy was abolished and the Commonwealth of England was established as a republic. The monarchy would be restored to Charles's son Charles II in 1660. | 2001-10-18T21:31:30Z | 2023-12-22T22:07:22Z | [
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7,431 | Counter-Strike (video game) | Counter-Strike (also known as Half-Life: Counter-Strike or Counter-Strike 1.6) is a tactical first-person shooter game developed by Valve. It was initially developed and released as a Half-Life modification by Minh "Gooseman" Le and Jess Cliffe in 1999, before Le and Cliffe were hired and the game's intellectual property acquired. Counter-Strike was released by Valve for Microsoft Windows in November 2000, and is the first installment in the Counter-Strike series. Several remakes and ports were released on Xbox, as well as OS X and Linux.
Set in various locations around the globe, players assume the roles of counter-terrorist forces and terrorist militants opposing them. During each round of gameplay, the two teams are tasked with defeating the other by the means of either achieving the map's objectives or eliminating all of the enemy combatants. Each player may customize their arsenal of weapons and accessories at the beginning of every match, with currency being earned after the end of each round.
Counter-Strike is a first-person shooter game in which players join either the terrorist team, the counter-terrorist team, or become spectators. Each team attempts to complete their mission objective and/or eliminate the opposing team. Each round starts with the two teams spawning simultaneously. All players have only one life by default and start with a pistol as well as a knife.
The objectives vary depending on the type of map, and these are the most usual ones:
A player can choose to play as one of eight different default character models (four for each side, although Counter-Strike: Condition Zero added two extra models, bringing the total to ten). Players are generally given a few seconds before the round begins (known as "freeze time") to prepare and buy equipment, during which they cannot attack or move. They can return to the buy area within a set amount of time to buy more equipment (some custom maps included neutral "buy zones" that could be used by both teams). Once the round has ended, surviving players retain their equipment for use in the next round; players who were killed begin the next round with the basic default starting equipment.
Standard monetary bonuses are awarded for winning a round, losing a round, killing an enemy, being the first to instruct a hostage to follow, rescuing a hostage, planting the bomb (Terrorist) or defusing the bomb (Counter-Terrorist).
The scoreboard displays team scores in addition to statistics for each player: name, kills, deaths, and ping (in milliseconds). The scoreboard also indicates whether a player is dead, carrying the bomb (on bomb maps), or is the VIP (on assassination maps), although information on players on the opposing team is hidden from a player until their death, as this information can be important.
Killed players become "spectators" for the duration of the round; they cannot change their names before their next spawn, text chat cannot be sent to or received from live players, and voice chat can only be received from live players and not sent to them. Spectators are generally able to watch the rest of the round from multiple selectable views, although some servers disable some of these views to prevent dead players from relaying information about living players to their teammates through alternative media (most notably voice in the case of Internet cafes and Voice over IP programs such as TeamSpeak or Ventrilo). This form of cheating is known as "ghosting."
Counter-Strike began as a mod of Half-Life's engine GoldSrc. Minh Le, the mod's co-creator, had started his last semester at university, and wanted to do something in game development to help give him better job prospects. Throughout university, Le had worked on mods with the Quake engine, and on looking for this latest project, wanted to try something new and opted for GoldSrc. At the onset, Valve had not yet released the software development kit (SDK) for GoldSrc but affirmed it would be available in a few months, allowing Le to work on the character models in the interim. Once the GoldSrc SDK was available, Le estimated it took him about a month and a half to complete the programming and integrate his models for "Beta One" of Counter-Strike. To assist, Le had help from Jess Cliffe who managed the game's website and community, and had contacts within level map making community to help build some of the levels for the game. The theme of countering terrorists was inspired by Le's own interest in guns and the military, and from games like Rainbow Six and Spec Ops.
Le and Cliffe continued to release Betas on a frequent basis for feedback. The initial few Betas, released starting in June 1999, had limited audiences but by the fifth one, interest in the project dramatically grew. The interest in the game drew numerous players to the website, which helped Le and Cliffe to make revenue from ads hosted on the site. Around 2000 at the time of Beta 5's release, the two were approached by Valve, offering to buy the Counter-Strike intellectual property and offering both jobs to continue its development. Both accepted the offer, and by September 2000, Valve released the first non-beta version of the game. While Cliffe stayed with Valve, Le did some additional work towards a Counter-Strike 2.0 based on Valve's upcoming Source engine, but left to start his own studio after Valve opted to shelve the sequel.
Counter-Strike itself is a mod, and it has developed its own community of script writers and mod creators. Some mods add bots, while others remove features of the game, and others create different modes of play. Some mods, often called "admin plugins", give server administrators more flexible and efficient control over their servers. There are some mods which affect gameplay heavily, such as Gun Game, where players start with a basic pistol and must score kills to receive better weapons, and Zombie Mod, where one team consists of zombies and must "spread the infection" by killing the other team (using only the knife). There are also Superhero mods which mix the first-person gameplay of Counter-Strike with an experience system, allowing a player to become more powerful as they continue to play. The game is highly customizable on the player's end, allowing the user to install or even create their own custom skins, HUDs, spray graphics, sprites, and sound effects, given the proper tools.
Counter-Strike has been a target for cheating in online games since its release. In-game, cheating is often referred to as "hacking" in reference to programs or "hacks" executed by the client. Valve has implemented an anti-cheat system called Valve Anti-Cheat (VAC). Players cheating on a VAC-enabled server risk having their account permanently banned from all VAC-secured servers.
With the first version of VAC, a ban took hold almost instantly after being detected and the cheater had to wait two years to have the account unbanned. Since VAC's second version, cheaters are not banned automatically. With the second version, Valve instituted a policy of 'delayed bans,' the theory being that if a new hack is developed which circumvents the VAC system, it will spread amongst the 'cheating' community. By delaying the initial ban, Valve hopes to identify and ban as many cheaters as possible. Like any software detection system, some cheats are not detected by VAC. To remedy this, some servers implement a voting system, in which case players can call for a vote to kick or ban the accused cheater. VAC's success at identifying cheats and banning those who use them has also provided a boost in the purchasing of private cheats. These cheats are updated frequently to minimize the risk of detection, and are generally only available to a trusted list of recipients who collectively promise not to reveal the underlying design. Even with private cheats however, some servers have alternative anticheats to coincide with VAC itself. This can help with detecting some cheaters, but most paid for cheats are designed to bypass these alternative server-based anticheats.
When Counter-Strike was published by Sierra Studios, it was bundled with Team Fortress Classic, Opposing Force multiplayer, and the Wanted, Half-Life: Absolute Redemption and Firearms mods.
On March 24, 1999, Planet Half-Life opened its Counter-Strike section. Within two weeks, the site had received 10,000 hits. On June 19, 1999, the first public beta of Counter-Strike was released, followed by numerous further "beta" releases. On April 12, 2000, Valve announced that the Counter-Strike developers and Valve had teamed up. In January 2013, Valve began testing a version of Counter-Strike for OS X and Linux, eventually releasing the update to all users in April 2013.
An unofficial browser version was released in 2023 on a Russian website.
Upon its retail release, Counter-Strike received highly favorable reviews. In 2003, Counter-Strike was inducted into GameSpot's list of the greatest games of all time. The New York Times reported that E-Sports Entertainment ESEA League started the first professional fantasy e-sports league in 2004 with the game Counter-Strike. Some credit the move into professional competitive team play with prizes as a major factor in Counter-Strike's longevity and success.
Global retail sales of Counter-Strike surpassed 250,000 units by July 2001. The game sold 1.5 million by February 2003 and generated $40 million in revenue. In the United States, its retail version sold 550,000 copies and earned $15.7 million by August 2006, after its release in November 2000. It was the country's 22nd best-selling PC game between January 2000 and August 2006.
The Xbox version sold 1.5 million copies in total.
On January 17, 2008, a Brazilian federal court order prohibiting all sales of Counter-Strike and EverQuest began to be enforced. The federal Brazilian judge Carlos Alberto Simões de Tomaz ordered the ban in October 2007 because, as argued by the judge, the games "bring imminent stimulus to the subversion of the social order, attempting against the democratic state and the law and against public security." As of June 18, 2009, a regional federal court order lifting the prohibition on the sale of Counter-Strike was published. The game is now being sold again in Brazil.
The original Counter-Strike has been played in tournaments since 2000 with the first major being hosted in 2001 at the Cyberathlete Professional League Winter Championship. The first official sequel was Counter-Strike: Source, released on November 1, 2004. The game was criticized by the competitive community, who believed the game's skill ceiling was significantly lower than that of CS 1.6. This caused a divide in the competitive community as to which game to play competitively.
Following the success of the first Counter-Strike, Valve went on to make multiple sequels to the game. Counter-Strike: Condition Zero, a game using Counter-Strike's GoldSrc engine, was released in 2004. Counter-Strike: Source, a remake of the original Counter-Strike, was the first in the series to use Valve's Source engine and was also released in 2004, eight months after the release of Counter-Strike: Condition Zero. The next game in the Counter-Strike series to be developed primarily by Valve was Counter-Strike: Global Offensive, released for Windows, OS X, Linux, PlayStation 3, and Xbox 360 in 2012.
The game spawned multiple spin-offs for the Asian gaming market. The first, Counter-Strike Neo, was an arcade game developed by Namco and released in Japan in 2003. In 2008, Nexon Corporation released Counter-Strike Online, a free-to-play instalment in the series monetized via microtransactions. Counter-Strike Online was followed by Counter-Strike Online 2 in 2013. In 2014, Nexon released Counter-Strike Nexon: Zombies worldwide via Steam. | [
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"title": "Gameplay"
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"title": "Gameplay"
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"text": "A player can choose to play as one of eight different default character models (four for each side, although Counter-Strike: Condition Zero added two extra models, bringing the total to ten). Players are generally given a few seconds before the round begins (known as \"freeze time\") to prepare and buy equipment, during which they cannot attack or move. They can return to the buy area within a set amount of time to buy more equipment (some custom maps included neutral \"buy zones\" that could be used by both teams). Once the round has ended, surviving players retain their equipment for use in the next round; players who were killed begin the next round with the basic default starting equipment.",
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"text": "Standard monetary bonuses are awarded for winning a round, losing a round, killing an enemy, being the first to instruct a hostage to follow, rescuing a hostage, planting the bomb (Terrorist) or defusing the bomb (Counter-Terrorist).",
"title": "Gameplay"
},
{
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"text": "The scoreboard displays team scores in addition to statistics for each player: name, kills, deaths, and ping (in milliseconds). The scoreboard also indicates whether a player is dead, carrying the bomb (on bomb maps), or is the VIP (on assassination maps), although information on players on the opposing team is hidden from a player until their death, as this information can be important.",
"title": "Gameplay"
},
{
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"text": "Killed players become \"spectators\" for the duration of the round; they cannot change their names before their next spawn, text chat cannot be sent to or received from live players, and voice chat can only be received from live players and not sent to them. Spectators are generally able to watch the rest of the round from multiple selectable views, although some servers disable some of these views to prevent dead players from relaying information about living players to their teammates through alternative media (most notably voice in the case of Internet cafes and Voice over IP programs such as TeamSpeak or Ventrilo). This form of cheating is known as \"ghosting.\"",
"title": "Gameplay"
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{
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"text": "Counter-Strike began as a mod of Half-Life's engine GoldSrc. Minh Le, the mod's co-creator, had started his last semester at university, and wanted to do something in game development to help give him better job prospects. Throughout university, Le had worked on mods with the Quake engine, and on looking for this latest project, wanted to try something new and opted for GoldSrc. At the onset, Valve had not yet released the software development kit (SDK) for GoldSrc but affirmed it would be available in a few months, allowing Le to work on the character models in the interim. Once the GoldSrc SDK was available, Le estimated it took him about a month and a half to complete the programming and integrate his models for \"Beta One\" of Counter-Strike. To assist, Le had help from Jess Cliffe who managed the game's website and community, and had contacts within level map making community to help build some of the levels for the game. The theme of countering terrorists was inspired by Le's own interest in guns and the military, and from games like Rainbow Six and Spec Ops.",
"title": "Development"
},
{
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"text": "Le and Cliffe continued to release Betas on a frequent basis for feedback. The initial few Betas, released starting in June 1999, had limited audiences but by the fifth one, interest in the project dramatically grew. The interest in the game drew numerous players to the website, which helped Le and Cliffe to make revenue from ads hosted on the site. Around 2000 at the time of Beta 5's release, the two were approached by Valve, offering to buy the Counter-Strike intellectual property and offering both jobs to continue its development. Both accepted the offer, and by September 2000, Valve released the first non-beta version of the game. While Cliffe stayed with Valve, Le did some additional work towards a Counter-Strike 2.0 based on Valve's upcoming Source engine, but left to start his own studio after Valve opted to shelve the sequel.",
"title": "Development"
},
{
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"text": "Counter-Strike itself is a mod, and it has developed its own community of script writers and mod creators. Some mods add bots, while others remove features of the game, and others create different modes of play. Some mods, often called \"admin plugins\", give server administrators more flexible and efficient control over their servers. There are some mods which affect gameplay heavily, such as Gun Game, where players start with a basic pistol and must score kills to receive better weapons, and Zombie Mod, where one team consists of zombies and must \"spread the infection\" by killing the other team (using only the knife). There are also Superhero mods which mix the first-person gameplay of Counter-Strike with an experience system, allowing a player to become more powerful as they continue to play. The game is highly customizable on the player's end, allowing the user to install or even create their own custom skins, HUDs, spray graphics, sprites, and sound effects, given the proper tools.",
"title": "Development"
},
{
"paragraph_id": 11,
"text": "Counter-Strike has been a target for cheating in online games since its release. In-game, cheating is often referred to as \"hacking\" in reference to programs or \"hacks\" executed by the client. Valve has implemented an anti-cheat system called Valve Anti-Cheat (VAC). Players cheating on a VAC-enabled server risk having their account permanently banned from all VAC-secured servers.",
"title": "Development"
},
{
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"text": "With the first version of VAC, a ban took hold almost instantly after being detected and the cheater had to wait two years to have the account unbanned. Since VAC's second version, cheaters are not banned automatically. With the second version, Valve instituted a policy of 'delayed bans,' the theory being that if a new hack is developed which circumvents the VAC system, it will spread amongst the 'cheating' community. By delaying the initial ban, Valve hopes to identify and ban as many cheaters as possible. Like any software detection system, some cheats are not detected by VAC. To remedy this, some servers implement a voting system, in which case players can call for a vote to kick or ban the accused cheater. VAC's success at identifying cheats and banning those who use them has also provided a boost in the purchasing of private cheats. These cheats are updated frequently to minimize the risk of detection, and are generally only available to a trusted list of recipients who collectively promise not to reveal the underlying design. Even with private cheats however, some servers have alternative anticheats to coincide with VAC itself. This can help with detecting some cheaters, but most paid for cheats are designed to bypass these alternative server-based anticheats.",
"title": "Development"
},
{
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"text": "When Counter-Strike was published by Sierra Studios, it was bundled with Team Fortress Classic, Opposing Force multiplayer, and the Wanted, Half-Life: Absolute Redemption and Firearms mods.",
"title": "Release"
},
{
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"text": "On March 24, 1999, Planet Half-Life opened its Counter-Strike section. Within two weeks, the site had received 10,000 hits. On June 19, 1999, the first public beta of Counter-Strike was released, followed by numerous further \"beta\" releases. On April 12, 2000, Valve announced that the Counter-Strike developers and Valve had teamed up. In January 2013, Valve began testing a version of Counter-Strike for OS X and Linux, eventually releasing the update to all users in April 2013.",
"title": "Release"
},
{
"paragraph_id": 15,
"text": "An unofficial browser version was released in 2023 on a Russian website.",
"title": "Release"
},
{
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"text": "Upon its retail release, Counter-Strike received highly favorable reviews. In 2003, Counter-Strike was inducted into GameSpot's list of the greatest games of all time. The New York Times reported that E-Sports Entertainment ESEA League started the first professional fantasy e-sports league in 2004 with the game Counter-Strike. Some credit the move into professional competitive team play with prizes as a major factor in Counter-Strike's longevity and success.",
"title": "Reception"
},
{
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"text": "Global retail sales of Counter-Strike surpassed 250,000 units by July 2001. The game sold 1.5 million by February 2003 and generated $40 million in revenue. In the United States, its retail version sold 550,000 copies and earned $15.7 million by August 2006, after its release in November 2000. It was the country's 22nd best-selling PC game between January 2000 and August 2006.",
"title": "Reception"
},
{
"paragraph_id": 18,
"text": "The Xbox version sold 1.5 million copies in total.",
"title": "Reception"
},
{
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"text": "On January 17, 2008, a Brazilian federal court order prohibiting all sales of Counter-Strike and EverQuest began to be enforced. The federal Brazilian judge Carlos Alberto Simões de Tomaz ordered the ban in October 2007 because, as argued by the judge, the games \"bring imminent stimulus to the subversion of the social order, attempting against the democratic state and the law and against public security.\" As of June 18, 2009, a regional federal court order lifting the prohibition on the sale of Counter-Strike was published. The game is now being sold again in Brazil.",
"title": "Reception"
},
{
"paragraph_id": 20,
"text": "The original Counter-Strike has been played in tournaments since 2000 with the first major being hosted in 2001 at the Cyberathlete Professional League Winter Championship. The first official sequel was Counter-Strike: Source, released on November 1, 2004. The game was criticized by the competitive community, who believed the game's skill ceiling was significantly lower than that of CS 1.6. This caused a divide in the competitive community as to which game to play competitively.",
"title": "Competitive play"
},
{
"paragraph_id": 21,
"text": "Following the success of the first Counter-Strike, Valve went on to make multiple sequels to the game. Counter-Strike: Condition Zero, a game using Counter-Strike's GoldSrc engine, was released in 2004. Counter-Strike: Source, a remake of the original Counter-Strike, was the first in the series to use Valve's Source engine and was also released in 2004, eight months after the release of Counter-Strike: Condition Zero. The next game in the Counter-Strike series to be developed primarily by Valve was Counter-Strike: Global Offensive, released for Windows, OS X, Linux, PlayStation 3, and Xbox 360 in 2012.",
"title": "Sequels"
},
{
"paragraph_id": 22,
"text": "The game spawned multiple spin-offs for the Asian gaming market. The first, Counter-Strike Neo, was an arcade game developed by Namco and released in Japan in 2003. In 2008, Nexon Corporation released Counter-Strike Online, a free-to-play instalment in the series monetized via microtransactions. Counter-Strike Online was followed by Counter-Strike Online 2 in 2013. In 2014, Nexon released Counter-Strike Nexon: Zombies worldwide via Steam.",
"title": "Sequels"
}
] | Counter-Strike is a tactical first-person shooter game developed by Valve. It was initially developed and released as a Half-Life modification by Minh "Gooseman" Le and Jess Cliffe in 1999, before Le and Cliffe were hired and the game's intellectual property acquired. Counter-Strike was released by Valve for Microsoft Windows in November 2000, and is the first installment in the Counter-Strike series. Several remakes and ports were released on Xbox, as well as OS X and Linux. Set in various locations around the globe, players assume the roles of counter-terrorist forces and terrorist militants opposing them. During each round of gameplay, the two teams are tasked with defeating the other by the means of either achieving the map's objectives or eliminating all of the enemy combatants. Each player may customize their arsenal of weapons and accessories at the beginning of every match, with currency being earned after the end of each round. | 2001-12-11T08:37:09Z | 2023-12-07T03:44:20Z | [
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7,434 | Camille Pissarro | Jacob Abraham Camille Pissarro (/pɪˈsɑːroʊ/ piss-AR-oh, French: [kamij pisaʁo]; 10 July 1830 – 13 November 1903) was a Danish-French Impressionist and Neo-Impressionist painter born on the island of St Thomas (now in the US Virgin Islands, but then in the Danish West Indies). His importance resides in his contributions to both Impressionism and Post-Impressionism. Pissarro studied from great forerunners, including Gustave Courbet and Jean-Baptiste-Camille Corot. He later studied and worked alongside Georges Seurat and Paul Signac when he took on the Neo-Impressionist style at the age of 54.
In 1873 he helped establish a collective society of fifteen aspiring artists, becoming the "pivotal" figure in holding the group together and encouraging the other members. Art historian John Rewald called Pissarro the "dean of the Impressionist painters", not only because he was the oldest of the group, but also "by virtue of his wisdom and his balanced, kind, and warmhearted personality". Paul Cézanne said "he was a father for me. A man to consult and a little like the good Lord", and he was also one of Paul Gauguin's masters. Pierre-Auguste Renoir referred to his work as "revolutionary", through his artistic portrayals of the "common man", as Pissarro insisted on painting individuals in natural settings without "artifice or grandeur".
Pissarro is the only artist to have shown his work at all eight Paris Impressionist exhibitions, from 1874 to 1886. He "acted as a father figure not only to the Impressionists" but to all four of the major Post-Impressionists, Cézanne, Seurat, Gauguin, and van Gogh.
Jacob Abraham Camille Pissarro was born on 10 July 1830 on the island of St. Thomas to Frederick Abraham Gabriel Pissarro and Rachel Manzano-Pomié. His father was of Portuguese Jewish descent and held French nationality. His mother was from a French-Jewish family from the island of St. Thomas. His father was a merchant who came to the island from France to deal with the hardware store of a deceased uncle, Isaac Petit, and married his widow. The marriage caused a stir within St. Thomas's small Jewish community because she was previously married to Frederick's uncle and according to Jewish law a man is forbidden from marrying his aunt. In subsequent years his four children attended the all-black primary school. Upon his death, his will specified that his estate be split equally between the synagogue and St. Thomas' Protestant church.
When Pissarro was twelve his father sent him to boarding school in France. He studied at the Savary Academy in Passy near Paris. While a young student, he developed an early appreciation of the French art masters. Monsieur Savary himself gave him a strong grounding in drawing and painting and suggested he draw from nature when he returned to St. Thomas.
After his schooling, Pissarro returned to St. Thomas at the age of sixteen or seventeen, where his father advocated Pissarro to work in his business as a port clerk. Nevertheless, Pissarro took every opportunity during those next five years at the job to practice drawing during breaks and after work.
Visual theorist Nicholas Mirzoeff claims that the young Pissarro was inspired by the artworks of James Gay Sawkins, a British painter and geologist who lived in Charlotte Amalie, St. Thomas circa 1847. Pissarro may have attended art classes taught by Sawkins and seen Sawkins's paintings of Mitla, Mexico. Mirzoeff states, "A formal analysis suggests that [Sawkins's] work influenced the young Pissarro, who had just returned to the island from his school in France. Soon afterward, Pissarro began his own drawings of the local African population in apparent imitation of Sawkins," creating "sketches for a postslavery imagination."
When Pissarro turned twenty-one, Danish artist Fritz Melbye, then living on St. Thomas, inspired him to take on painting as a full-time profession, becoming his teacher and friend. Pissarro then chose to leave his family and job and live in Venezuela, where he and Melbye spent the next two years working as artists in Caracas and La Guaira. He drew everything he could, including landscapes, village scenes, and numerous sketches, enough to fill up multiple sketchbooks.
In 1855, Pissarro moved back to Paris where he began working as an assistant to Anton Melbye, Fritz Melbye's brother and also a painter. He also studied paintings by other artists whose style impressed him: Courbet, Charles-François Daubigny, Jean-François Millet, and Corot. He also enrolled in various classes taught by masters, at schools such as École des Beaux-Arts and Académie Suisse. But Pissarro eventually found their teaching methods "stifling," states art historian John Rewald. This prompted him to search for alternative instruction, which he requested and received from Corot.
His initial paintings were in accord with the standards at the time to be displayed at the Paris Salon, the official body whose academic traditions dictated the kind of art that was acceptable. The Salon's annual exhibition was essentially the only marketplace for young artists to gain exposure. As a result, Pissarro worked in the traditional and prescribed manner to satisfy the tastes of its official committee.
In 1859 his first painting was accepted and exhibited. His other paintings during that period were influenced by Camille Corot, who tutored him. He and Corot both shared a love of rural scenes painted from nature. It was by Corot that Pissarro was inspired to paint outdoors, also called "plein air" painting. Pissarro found Corot, along with the work of Gustave Courbet, to be "statements of pictorial truth," writes Rewald. He discussed their work often. Jean-François Millet was another whose work he admired, especially his "sentimental renditions of rural life".
During this period Pissarro began to understand and appreciate the importance of expressing on canvas the beauties of nature without adulteration. After a year in Paris, he therefore began to leave the city and paint scenes in the countryside to capture the daily reality of village life. He found the French countryside to be "picturesque," and worthy of being painted. It was still mostly agricultural and sometimes called the "golden age of the peasantry". Pissarro later explained the technique of painting outdoors to a student:
Corot would complete his paintings back in his studio, often revising them according to his preconceptions. Pissarro, however, preferred to finish his paintings outdoors, often at one sitting, which gave his work a more realistic feel. As a result, his art was sometimes criticised as being "vulgar," because he painted what he saw: "rutted and edged hodgepodge of bushes, mounds of earth, and trees in various stages of development." According to one source, such details were equivalent to today's art showing garbage cans or beer bottles on the side of a street. This difference in style created disagreements between Pissarro and Corot.
In 1859, while attending the free school, the Académie Suisse, Pissarro became friends with a number of younger artists who likewise chose to paint in the more realistic style. Among them were Claude Monet, Armand Guillaumin and Paul Cézanne. What they shared in common was their dissatisfaction with the dictates of the Salon. Cézanne's work had been mocked at the time by the others in the school, and, writes Rewald, in his later years Cézanne "never forgot the sympathy and understanding with which Pissarro encouraged him." As a part of the group, Pissarro was comforted from knowing he was not alone, and that others similarly struggled with their art.
Pissarro agreed with the group about the importance of portraying individuals in natural settings, and expressed his dislike of any artifice or grandeur in his works, despite what the Salon demanded for its exhibits. In 1863 almost all of the group's paintings were rejected by the Salon, and French Emperor Napoleon III instead decided to place their paintings in a separate exhibit hall, the Salon des Refusés. However, only works of Pissarro and Cézanne were included, and the separate exhibit brought a hostile response from both the officials of the Salon and the public.
In subsequent Salon exhibits of 1865 and 1866, Pissarro acknowledged his influences from Melbye and Corot, whom he listed as his masters in the catalogue. But in the exhibition of 1868 he no longer credited other artists as an influence, in effect declaring his independence as a painter. This was noted at the time by art critic and author Émile Zola, who offered his opinion:
Another writer tries to describe elements of Pissarro's style:
And though, on orders from the hanging Committee and the Marquis de Chennevières, Pissarro's paintings of Pontoise for example had been skyed, hung near the ceiling, this did not prevent Jules-Antoine Castagnary from noting that the qualities of his paintings had been observed by art lovers. At the age of thirty-eight, Pissarro had begun to win himself a reputation as a landscapist to rival Corot and Daubigny.
In the late 1860s or early 1870s, Pissarro became fascinated with Japanese prints, which influenced his desire to experiment in new compositions. He described the art to his son Lucien:
In 1871 in Croydon, England, he married his mother's maid, Julie Vellay, a vineyard grower's daughter, with whom he had seven children, six of which would become painters: Lucien Pissarro (1863–1944), Georges Henri Manzana Pissarro (1871–1961), Félix Pissarro (1874–1897), Ludovic-Rodo Pissarro [fr] (1878–1952), Jeanne Bonin-Pissarro [fr] (1881–1948), and Paul-Émile Pissarro (1884–1972). They lived outside Paris in Pontoise and later in Louveciennes, both of which places inspired many of his paintings including scenes of village life, along with rivers, woods, and people at work. He also kept in touch with the other artists of his earlier group, especially Monet, Renoir, Cézanne, and Frédéric Bazille.
After the outbreak of the Franco-Prussian War of 1870–71, having only Danish nationality and being unable to join the army, he moved his family to Norwood, then a village on the edge of London. However, his style of painting, which was a forerunner of what was later called "Impressionism", did not do well. He wrote to his friend, Théodore Duret, that "my painting doesn't catch on, not at all ..."
Pissarro met the Paris art dealer Paul Durand-Ruel, in London, who became the dealer who helped sell his art for most of his life. Durand-Ruel put him in touch with Monet who was likewise in London during this period. They both viewed the work of British landscape artists John Constable and J. M. W. Turner, which confirmed their belief that their style of open air painting gave the truest depiction of light and atmosphere, an effect that they felt could not be achieved in the studio alone. Pissarro's paintings also began to take on a more spontaneous look, with loosely blended brushstrokes and areas of impasto, giving more depth to the work.
Through the paintings Pissarro completed at this time, he records Sydenham and the Norwoods at a time when they were just recently connected by railways, but prior to the expansion of suburbia. One of the largest of these paintings is a view of St. Bartholomew's Church at Lawrie Park Avenue, commonly known as The Avenue, Sydenham, in the collection of the National Gallery in London. Twelve oil paintings date from his stay in Upper Norwood and are listed and illustrated in the catalogue raisonné prepared jointly by his fifth child Ludovic-Rodolphe Pissarro and Lionello Venturi and published in 1939. These paintings include Lower Norwood Under Snow, and Lordship Lane Station, views of The Crystal Palace relocated from Hyde Park, Dulwich College, Sydenham Hill, All Saints Church Upper Norwood, and a lost painting of St. Stephen's Church.
Returning to France, Pissarro lived in Pontoise from 1872 to 1884. In 1890 he again visited England and painted some ten scenes of central London. He came back again in 1892, painting in Kew Gardens and Kew Green, and also in 1897, when he produced several oils described as being of Bedford Park, Chiswick, but in fact all being of the nearby Stamford Brook area except for one of Bath Road, which runs from Stamford Brook along the south edge of Bedford Park.
When Pissarro returned to his home in France after the war, he discovered that of the 1,500 paintings he had done over 20 years, which he was forced to leave behind when he moved to London, only 40 remained. The rest had been damaged or destroyed by the soldiers, who often used them as floor mats outside in the mud to keep their boots clean. It is assumed that many of those lost were done in the Impressionist style he was then developing, thereby "documenting the birth of Impressionism." Armand Silvestre, a critic, went so far as to call Pissarro "basically the inventor of this [Impressionist] painting"; however, Pissarro's role in the Impressionist movement was "less that of the great man of ideas than that of the good counselor and appeaser ..." "Monet ... could be seen as the guiding force."
He soon reestablished his friendships with the other Impressionist artists of his earlier group, including Cézanne, Monet, Manet, Renoir, and Degas. Pissarro now expressed his opinion to the group that he wanted an alternative to the Salon so their group could display their own unique styles.
To assist in that endeavour, in 1873 he helped establish a separate collective, called the "Société Anonyme des Artistes, Peintres, Sculpteurs et Graveurs," which included fifteen artists. Pissarro created the group's first charter and became the "pivotal" figure in establishing and holding the group together. One writer noted that with his prematurely grey beard, the forty-three-year-old Pissarro was regarded as a "wise elder and father figure" by the group. Yet he was able to work alongside the other artists on equal terms due to his youthful temperament and creativity. Another writer said of him that "he has unchanging spiritual youth and the look of an ancestor who remained a young man".
The following year, in 1874, the group held their first 'Impressionist' Exhibition, which shocked and "horrified" the critics, who primarily appreciated only scenes portraying religious, historical, or mythological settings. They found fault with the Impressionist paintings on many grounds:
Pissarro showed five of his paintings, all landscapes, at the exhibit, and again Émile Zola praised his art and that of the others. In the Impressionist exhibit of 1876, however, art critic Albert Wolff complained in his review, "Try to make M. Pissarro understand that trees are not violet, that sky is not the color of fresh butter ..." Journalist and art critic Octave Mirbeau on the other hand, writes, "Camille Pissarro has been a revolutionary through the revitalized working methods with which he has endowed painting". According to Rewald, Pissarro had taken on an attitude more simple and natural than the other artists. He writes:
In later years, Cézanne also recalled this period and referred to Pissarro as "the first Impressionist". In 1906, a few years after Pissarro's death, Cézanne, then 67 and a role model for the new generation of artists, paid Pissarro a debt of gratitude by having himself listed in an exhibition catalogue as "Paul Cézanne, pupil of Pissarro".
Pissarro, Degas, and American impressionist Mary Cassatt planned a journal of their original prints in the late 1870s, a project that nevertheless came to nothing when Degas withdrew. Art historian and the artist's great-grandson Joachim Pissarro notes that they "professed a passionate disdain for the Salons and refused to exhibit at them." Together they shared an "almost militant resolution" against the Salon, and through their later correspondences it is clear that their mutual admiration "was based on a kinship of ethical as well as aesthetic concerns".
Cassatt had befriended Degas and Pissarro years earlier when she joined Pissarro's newly formed French Impressionist group and gave up opportunities to exhibit in the United States. She and Pissarro were often treated as "two outsiders" by the Salon since neither were French or had become French citizens. However, she was "fired up with the cause" of promoting Impressionism and looked forward to exhibiting "out of solidarity with her new friends". Towards the end of the 1890s she began to distance herself from the Impressionists, avoiding Degas at times as she did not have the strength to defend herself against his "wicked tongue". Instead, she came to prefer the company of "the gentle Camille Pissarro", with whom she could speak frankly about the changing attitudes toward art. She once described him as a teacher "that could have taught the stones to draw correctly."
By the 1880s, Pissarro began to explore new themes and methods of painting to break out of what he felt was an artistic "mire". As a result, Pissarro went back to his earlier themes by painting the life of country people, which he had done in Venezuela in his youth. Degas described Pissarro's subjects as "peasants working to make a living".
However, this period also marked the end of the Impressionist period due to Pissarro's leaving the movement. As Joachim Pissarro points out:
"Once such a die-hard Impressionist as Pissarro had turned his back on Impressionism, it was apparent that Impressionism had no chance of surviving ..."
It was Pissarro's intention during this period to help "educate the public" by painting people at work or at home in realistic settings, without idealising their lives. Pierre-Auguste Renoir, in 1882, referred to Pissarro's work during this period as "revolutionary," in his attempt to portray the "common man." Pissarro himself did not use his art to overtly preach any kind of political message, however, although his preference for painting humble subjects was intended to be seen and purchased by his upper class clientele. He also began painting with a more unified brushwork along with pure strokes of color.
In 1885 he met Georges Seurat and Paul Signac, both of whom relied on a more "scientific" theory of painting by using very small patches of pure colours to create the illusion of blended colours and shading when viewed from a distance. Pissarro then spent the years from 1885 to 1888 practising this more time-consuming and laborious technique, referred to as pointillism. The paintings that resulted were distinctly different from his Impressionist works, and were on display in the 1886 Impressionist Exhibition, but under a separate section, along with works by Seurat, Signac, and his son Lucien.
All four works were considered an "exception" to the eighth exhibition. Joachim Pissarro notes that virtually every reviewer who commented on Pissarro's work noted "his extraordinary capacity to change his art, revise his position and take on new challenges." One critic writes:
Pissarro explained the new art form as a "phase in the logical march of Impressionism", but he was alone among the other Impressionists with this attitude, however. Joachim Pissarro states that Pissarro thereby became the "only artist who went from Impressionism to Neo-Impressionism".
In 1884, art dealer Theo van Gogh asked Pissarro if he would take in his older brother, Vincent, as a boarder in his home. Lucien Pissarro wrote that his father was impressed by Van Gogh's work and had "foreseen the power of this artist", who was 23 years younger. Although Van Gogh never boarded with him, Pissarro did explain to him the various ways of finding and expressing light and color, ideas which he later used in his paintings, notes Lucien.
Pissarro eventually turned away from Neo-Impressionism, claiming its system was too artificial. He explains in a letter to a friend:
However, after reverting to his earlier style, his work became, according to Rewald, "more subtle, his color scheme more refined, his drawing firmer ... So it was that Pissarro approached old age with an increased mastery."
But the change also added to Pissarro's continual financial hardship which he felt until his 60s. His "headstrong courage and a tenacity to undertake and sustain the career of an artist", writes Joachim Pissarro, was due to his "lack of fear of the immediate repercussions" of his stylistic decisions. In addition, his work was strong enough to "bolster his morale and keep him going", he writes. His Impressionist contemporaries, however, continued to view his independence as a "mark of integrity", and they turned to him for advice, referring to him as "Père Pissarro" (father Pissarro).
In his older age Pissarro suffered from a recurring eye infection that prevented him from working outdoors except in warm weather. As a result of this disability, he began painting outdoor scenes while sitting by the window of hotel rooms. He often chose hotel rooms on upper levels to get a broader view. He moved around northern France and painted from hotels in Rouen, Paris, Le Havre and Dieppe. On his visits to London, he would do the same.
Pissarro died in Paris on 13 November 1903 and was buried in Père Lachaise Cemetery.
During the period Pissarro exhibited his works, art critic Armand Silvestre had called Pissarro the "most real and most naive member" of the Impressionist group. His work has also been described by art historian Diane Kelder as expressing "the same quiet dignity, sincerity, and durability that distinguished his person." She adds that "no member of the group did more to mediate the internecine disputes that threatened at times to break it apart, and no one was a more diligent proselytizer of the new painting."
According to Pissarro's son, Lucien, his father painted regularly with Cézanne beginning in 1872. He recalls that Cézanne walked a few miles to join Pissarro at various settings in Pontoise. While they shared ideas during their work, the younger Cézanne wanted to study the countryside through Pissarro's eyes, as he admired Pissarro's landscapes from the 1860s. Cézanne, although only nine years younger than Pissarro, said that "he was a father for me. A man to consult and a little like the good Lord."
Lucien Pissarro was taught painting by his father, and described him as a "splendid teacher, never imposing his personality on his pupil." Gauguin, who also studied under him, referred to Pissarro "as a force with which future artists would have to reckon". Art historian Diane Kelder notes that it was Pissarro who introduced Gauguin, who was then a young stockbroker studying to become an artist, to Degas and Cézanne. Gauguin, near the end of his career, wrote a letter to a friend in 1902, shortly before Pissarro's death:
The American impressionist Mary Cassatt, who at one point lived in Paris to study art, and joined his Impressionist group, noted that he was "such a teacher that he could have taught the stones to draw correctly."
Caribbean author and scholar Derek Walcott based his book-length poem, Tiepolo's Hound (2000), on Pissarro's life.
During the early 1930s throughout Europe, Jewish owners of numerous fine art masterpieces found themselves forced to give up or sell off their collections for minimal prices due to anti-Jewish laws created by the new Nazi regime. Many Jews were forced to flee Germany starting in 1933, and then, as the Nazis expanded their hold over all of Europe, Austria, France, Holland, Poland, Italy and other countries. The Nazis created special looting organizations like the Reichsleiter Rosenberg Taskforce whose mission it was to seize Jewish property notably valuable artworks. When those forced into exile or deported to extermination camps owned valuables, including artwork, they were often sold to finance the Nazi war effort, sent to Hitler's personal museum, traded or seized by officials for personal gain. Several artworks by Pissarro were looted from their Jewish owners in Germany, France and elsewhere by the Nazis.
Pissarro's Shepherdess Bringing Home the Sheep (La Bergère Rentrant des Moutons") was looted from the Jewish art collectors Yvonne et Raoul Meyer in France in 1941 and transited via Switzerland and New York before entering the Fred Jones Jr Museum at the University of Oklahoma. In 2014, Meyer's daughter, Léonie-Noëlle Meyer filed a restitution claim which resulted in years of court battle. The lawsuit resulted in the recognition of Meyer's ownership and its transfer to France for five years, coupled with an agreement to shuttle the painting back and forth between Paris and Oklahoma every three years after that. However, in 2020 Meyer filed suit in a French court to challenge the accord. After Fred Jones Jr Museum sued Meyer requesting heavy financial penalties, the Holocaust survivor abandoned her effort to recover the Pissarro, saying, "I have no other choice.
Pissarro's Picking Peas (La Cueillette) was looted from Jewish businessman Simon Bauer, in addition to 92 other artworks seized in 1943 by the Vichy collaborationist regime in France.
Pissarro's Sower And Ploughman, was owned by Dr Henri Hinrichsen, a Jewish music publisher from Leipzig, until 11 January 1940, when he was forced to relinquish the painting to Hildebrand Gurlitt in Nazi-occupied Brussels, before being murdered in Auschwitz in September 1942.
Pissarro's “Le Quai Malaquais, Printemps”, owned by German Jewish publisher Samuel Fischer, founder of the famous S. Fischer Verlag, passed through the hands of infamous Nazi art looter Bruno Lohse.
Pissarro's Le Boulevard de Montmartre, Matinée de Printemps, owned by Max Silberberg, a German Jewish industrialist whose renowned art collection was considered "one of the best in pre-war Germany", was seized and sold in a forced auction before Silberberg and his wife Johanna were murdered in Auschwitz.
In the decades after World War II, many art masterpieces were found on display in various galleries and museums in Europe and the United States, often with false provenances and labels missing. Some, as a result of legal action, were later returned to the families of the original owners. Many of the recovered paintings were then donated to the same or other museums as a gift.
One such lost piece, Pissarro's 1897 oil painting, Rue St. Honoré, Apres Midi, Effet de Pluie, was discovered hanging at Madrid's government-owned museum, the Museo Thyssen-Bornemisza. In January 2011 the Spanish government denied a request by the US ambassador to return the painting. At the subsequent trial in Los Angeles, the court ruled that the Thyssen-Bornemisza Collection Foundation was the rightful owner. In 1999, Pissarro's 1897 Le Boulevard de Montmartre, Matinée de Printemps appeared in the Israel Museum in Jerusalem, its donor having been unaware of its pre-war provenance. In January 2012, Le Marché aux Poissons (The Fish Market), a color monotype, was returned after 30 years.
During his lifetime, Camille Pissarro sold few of his paintings. By the 21st century, however, his paintings were selling for millions. An auction record for the artist was set on 6 November 2007 at Christie's in New York, where a group of four paintings, Les Quatre Saisons (the Four Seasons), sold for $14,601,000 (estimate $12,000,000 – $18,000,000). In November 2009 Le Pont Boieldieu et la Gare d'Orléans, Rouen, Soleil sold for $7,026,500 at Sotheby's in New York.
In February 2014 the 1897 Le Boulevard de Montmartre, Matinée de Printemps, originally owned by the German industrialist and Holocaust victim Max Silberberg (de), sold at Sotheby's in London for £19.9M, nearly five times the previous record.
In October 2021 Berlin's Alte Nationalgalerie restituted Pissarro's "A Square in La Roche-Guyon" (1867) to the heirs of Armand Dorville, a French Jewish art collector whose family was persecuted by the Nazis and whose paintings had been sold at a 1942 auction in Nice that was overseen by the Commissariat Général aux Questions Juives. The museum then purchased the Pissarro back.
Camille's son Lucien was an Impressionist and Neo-impressionist painter as were his second and third sons Georges Henri Manzana Pissarro and Félix Pissarro. Lucien's daughter Orovida Pissarro was also a painter. Camille's great-grandson, Joachim Pissarro, became Head Curator of Drawing and Painting at the Museum of Modern Art in New York City and a professor in Hunter College's Art Department. Camille's great-granddaughter, Lélia Pissarro, has had her work exhibited alongside her great-grandfather. Another great-granddaughter, Julia Pissarro, a Barnard College graduate, is also active in the art scene. From the only daughter of Camille, Jeanne Pissarro, other painters include Henri Bonin-Pissarro (1918–2003) and Claude Bonin-Pissarro (born 1921), who is the father of the Abstract artist Frédéric Bonin-Pissarro (born 1964).
The grandson of Camille Pissarro, Hugues Claude Pissarro (dit Pomié), was born in 1935 in the western section of Paris, Neuilly-sur-Seine, and began to draw and paint as a young child under his father's tutelage. During his adolescence and early twenties he studied the works of the great masters at the Louvre. His work has been featured in exhibitions in Europe and the United States, and he was commissioned by the White House in 1959 to paint a portrait of U.S. President Dwight Eisenhower. He now lives and paints in Donegal, Ireland, with his wife Corinne also an accomplished artist and their children.
In June 2006, a three-volume work of 1,500 pages was published, titled Pissarro: Critical Catalogue of Paintings. It was compiled by Joachim Pissarro, descendant of the painter, and Claire Durand-Ruel Snollaerts, descendant of the French art dealer Paul Durand-Ruel. The work is the most comprehensive collection of Pissarro paintings to date. It contains accompanying images of drawings and studies, as well as photographs of Pissarro and his family that had not previously been published. | [
{
"paragraph_id": 0,
"text": "Jacob Abraham Camille Pissarro (/pɪˈsɑːroʊ/ piss-AR-oh, French: [kamij pisaʁo]; 10 July 1830 – 13 November 1903) was a Danish-French Impressionist and Neo-Impressionist painter born on the island of St Thomas (now in the US Virgin Islands, but then in the Danish West Indies). His importance resides in his contributions to both Impressionism and Post-Impressionism. Pissarro studied from great forerunners, including Gustave Courbet and Jean-Baptiste-Camille Corot. He later studied and worked alongside Georges Seurat and Paul Signac when he took on the Neo-Impressionist style at the age of 54.",
"title": ""
},
{
"paragraph_id": 1,
"text": "In 1873 he helped establish a collective society of fifteen aspiring artists, becoming the \"pivotal\" figure in holding the group together and encouraging the other members. Art historian John Rewald called Pissarro the \"dean of the Impressionist painters\", not only because he was the oldest of the group, but also \"by virtue of his wisdom and his balanced, kind, and warmhearted personality\". Paul Cézanne said \"he was a father for me. A man to consult and a little like the good Lord\", and he was also one of Paul Gauguin's masters. Pierre-Auguste Renoir referred to his work as \"revolutionary\", through his artistic portrayals of the \"common man\", as Pissarro insisted on painting individuals in natural settings without \"artifice or grandeur\".",
"title": ""
},
{
"paragraph_id": 2,
"text": "Pissarro is the only artist to have shown his work at all eight Paris Impressionist exhibitions, from 1874 to 1886. He \"acted as a father figure not only to the Impressionists\" but to all four of the major Post-Impressionists, Cézanne, Seurat, Gauguin, and van Gogh.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Jacob Abraham Camille Pissarro was born on 10 July 1830 on the island of St. Thomas to Frederick Abraham Gabriel Pissarro and Rachel Manzano-Pomié. His father was of Portuguese Jewish descent and held French nationality. His mother was from a French-Jewish family from the island of St. Thomas. His father was a merchant who came to the island from France to deal with the hardware store of a deceased uncle, Isaac Petit, and married his widow. The marriage caused a stir within St. Thomas's small Jewish community because she was previously married to Frederick's uncle and according to Jewish law a man is forbidden from marrying his aunt. In subsequent years his four children attended the all-black primary school. Upon his death, his will specified that his estate be split equally between the synagogue and St. Thomas' Protestant church.",
"title": "Early years"
},
{
"paragraph_id": 4,
"text": "When Pissarro was twelve his father sent him to boarding school in France. He studied at the Savary Academy in Passy near Paris. While a young student, he developed an early appreciation of the French art masters. Monsieur Savary himself gave him a strong grounding in drawing and painting and suggested he draw from nature when he returned to St. Thomas.",
"title": "Early years"
},
{
"paragraph_id": 5,
"text": "After his schooling, Pissarro returned to St. Thomas at the age of sixteen or seventeen, where his father advocated Pissarro to work in his business as a port clerk. Nevertheless, Pissarro took every opportunity during those next five years at the job to practice drawing during breaks and after work.",
"title": "Early years"
},
{
"paragraph_id": 6,
"text": "Visual theorist Nicholas Mirzoeff claims that the young Pissarro was inspired by the artworks of James Gay Sawkins, a British painter and geologist who lived in Charlotte Amalie, St. Thomas circa 1847. Pissarro may have attended art classes taught by Sawkins and seen Sawkins's paintings of Mitla, Mexico. Mirzoeff states, \"A formal analysis suggests that [Sawkins's] work influenced the young Pissarro, who had just returned to the island from his school in France. Soon afterward, Pissarro began his own drawings of the local African population in apparent imitation of Sawkins,\" creating \"sketches for a postslavery imagination.\"",
"title": "Early years"
},
{
"paragraph_id": 7,
"text": "When Pissarro turned twenty-one, Danish artist Fritz Melbye, then living on St. Thomas, inspired him to take on painting as a full-time profession, becoming his teacher and friend. Pissarro then chose to leave his family and job and live in Venezuela, where he and Melbye spent the next two years working as artists in Caracas and La Guaira. He drew everything he could, including landscapes, village scenes, and numerous sketches, enough to fill up multiple sketchbooks.",
"title": "Early years"
},
{
"paragraph_id": 8,
"text": "In 1855, Pissarro moved back to Paris where he began working as an assistant to Anton Melbye, Fritz Melbye's brother and also a painter. He also studied paintings by other artists whose style impressed him: Courbet, Charles-François Daubigny, Jean-François Millet, and Corot. He also enrolled in various classes taught by masters, at schools such as École des Beaux-Arts and Académie Suisse. But Pissarro eventually found their teaching methods \"stifling,\" states art historian John Rewald. This prompted him to search for alternative instruction, which he requested and received from Corot.",
"title": "Life in France"
},
{
"paragraph_id": 9,
"text": "His initial paintings were in accord with the standards at the time to be displayed at the Paris Salon, the official body whose academic traditions dictated the kind of art that was acceptable. The Salon's annual exhibition was essentially the only marketplace for young artists to gain exposure. As a result, Pissarro worked in the traditional and prescribed manner to satisfy the tastes of its official committee.",
"title": "Life in France"
},
{
"paragraph_id": 10,
"text": "In 1859 his first painting was accepted and exhibited. His other paintings during that period were influenced by Camille Corot, who tutored him. He and Corot both shared a love of rural scenes painted from nature. It was by Corot that Pissarro was inspired to paint outdoors, also called \"plein air\" painting. Pissarro found Corot, along with the work of Gustave Courbet, to be \"statements of pictorial truth,\" writes Rewald. He discussed their work often. Jean-François Millet was another whose work he admired, especially his \"sentimental renditions of rural life\".",
"title": "Life in France"
},
{
"paragraph_id": 11,
"text": "During this period Pissarro began to understand and appreciate the importance of expressing on canvas the beauties of nature without adulteration. After a year in Paris, he therefore began to leave the city and paint scenes in the countryside to capture the daily reality of village life. He found the French countryside to be \"picturesque,\" and worthy of being painted. It was still mostly agricultural and sometimes called the \"golden age of the peasantry\". Pissarro later explained the technique of painting outdoors to a student:",
"title": "Life in France"
},
{
"paragraph_id": 12,
"text": "Corot would complete his paintings back in his studio, often revising them according to his preconceptions. Pissarro, however, preferred to finish his paintings outdoors, often at one sitting, which gave his work a more realistic feel. As a result, his art was sometimes criticised as being \"vulgar,\" because he painted what he saw: \"rutted and edged hodgepodge of bushes, mounds of earth, and trees in various stages of development.\" According to one source, such details were equivalent to today's art showing garbage cans or beer bottles on the side of a street. This difference in style created disagreements between Pissarro and Corot.",
"title": "Life in France"
},
{
"paragraph_id": 13,
"text": "In 1859, while attending the free school, the Académie Suisse, Pissarro became friends with a number of younger artists who likewise chose to paint in the more realistic style. Among them were Claude Monet, Armand Guillaumin and Paul Cézanne. What they shared in common was their dissatisfaction with the dictates of the Salon. Cézanne's work had been mocked at the time by the others in the school, and, writes Rewald, in his later years Cézanne \"never forgot the sympathy and understanding with which Pissarro encouraged him.\" As a part of the group, Pissarro was comforted from knowing he was not alone, and that others similarly struggled with their art.",
"title": "Life in France"
},
{
"paragraph_id": 14,
"text": "Pissarro agreed with the group about the importance of portraying individuals in natural settings, and expressed his dislike of any artifice or grandeur in his works, despite what the Salon demanded for its exhibits. In 1863 almost all of the group's paintings were rejected by the Salon, and French Emperor Napoleon III instead decided to place their paintings in a separate exhibit hall, the Salon des Refusés. However, only works of Pissarro and Cézanne were included, and the separate exhibit brought a hostile response from both the officials of the Salon and the public.",
"title": "Life in France"
},
{
"paragraph_id": 15,
"text": "In subsequent Salon exhibits of 1865 and 1866, Pissarro acknowledged his influences from Melbye and Corot, whom he listed as his masters in the catalogue. But in the exhibition of 1868 he no longer credited other artists as an influence, in effect declaring his independence as a painter. This was noted at the time by art critic and author Émile Zola, who offered his opinion:",
"title": "Life in France"
},
{
"paragraph_id": 16,
"text": "Another writer tries to describe elements of Pissarro's style:",
"title": "Life in France"
},
{
"paragraph_id": 17,
"text": "And though, on orders from the hanging Committee and the Marquis de Chennevières, Pissarro's paintings of Pontoise for example had been skyed, hung near the ceiling, this did not prevent Jules-Antoine Castagnary from noting that the qualities of his paintings had been observed by art lovers. At the age of thirty-eight, Pissarro had begun to win himself a reputation as a landscapist to rival Corot and Daubigny.",
"title": "Life in France"
},
{
"paragraph_id": 18,
"text": "In the late 1860s or early 1870s, Pissarro became fascinated with Japanese prints, which influenced his desire to experiment in new compositions. He described the art to his son Lucien:",
"title": "Life in France"
},
{
"paragraph_id": 19,
"text": "In 1871 in Croydon, England, he married his mother's maid, Julie Vellay, a vineyard grower's daughter, with whom he had seven children, six of which would become painters: Lucien Pissarro (1863–1944), Georges Henri Manzana Pissarro (1871–1961), Félix Pissarro (1874–1897), Ludovic-Rodo Pissarro [fr] (1878–1952), Jeanne Bonin-Pissarro [fr] (1881–1948), and Paul-Émile Pissarro (1884–1972). They lived outside Paris in Pontoise and later in Louveciennes, both of which places inspired many of his paintings including scenes of village life, along with rivers, woods, and people at work. He also kept in touch with the other artists of his earlier group, especially Monet, Renoir, Cézanne, and Frédéric Bazille.",
"title": "Life in France"
},
{
"paragraph_id": 20,
"text": "After the outbreak of the Franco-Prussian War of 1870–71, having only Danish nationality and being unable to join the army, he moved his family to Norwood, then a village on the edge of London. However, his style of painting, which was a forerunner of what was later called \"Impressionism\", did not do well. He wrote to his friend, Théodore Duret, that \"my painting doesn't catch on, not at all ...\"",
"title": "The London years"
},
{
"paragraph_id": 21,
"text": "Pissarro met the Paris art dealer Paul Durand-Ruel, in London, who became the dealer who helped sell his art for most of his life. Durand-Ruel put him in touch with Monet who was likewise in London during this period. They both viewed the work of British landscape artists John Constable and J. M. W. Turner, which confirmed their belief that their style of open air painting gave the truest depiction of light and atmosphere, an effect that they felt could not be achieved in the studio alone. Pissarro's paintings also began to take on a more spontaneous look, with loosely blended brushstrokes and areas of impasto, giving more depth to the work.",
"title": "The London years"
},
{
"paragraph_id": 22,
"text": "Through the paintings Pissarro completed at this time, he records Sydenham and the Norwoods at a time when they were just recently connected by railways, but prior to the expansion of suburbia. One of the largest of these paintings is a view of St. Bartholomew's Church at Lawrie Park Avenue, commonly known as The Avenue, Sydenham, in the collection of the National Gallery in London. Twelve oil paintings date from his stay in Upper Norwood and are listed and illustrated in the catalogue raisonné prepared jointly by his fifth child Ludovic-Rodolphe Pissarro and Lionello Venturi and published in 1939. These paintings include Lower Norwood Under Snow, and Lordship Lane Station, views of The Crystal Palace relocated from Hyde Park, Dulwich College, Sydenham Hill, All Saints Church Upper Norwood, and a lost painting of St. Stephen's Church.",
"title": "The London years"
},
{
"paragraph_id": 23,
"text": "Returning to France, Pissarro lived in Pontoise from 1872 to 1884. In 1890 he again visited England and painted some ten scenes of central London. He came back again in 1892, painting in Kew Gardens and Kew Green, and also in 1897, when he produced several oils described as being of Bedford Park, Chiswick, but in fact all being of the nearby Stamford Brook area except for one of Bath Road, which runs from Stamford Brook along the south edge of Bedford Park.",
"title": "The London years"
},
{
"paragraph_id": 24,
"text": "When Pissarro returned to his home in France after the war, he discovered that of the 1,500 paintings he had done over 20 years, which he was forced to leave behind when he moved to London, only 40 remained. The rest had been damaged or destroyed by the soldiers, who often used them as floor mats outside in the mud to keep their boots clean. It is assumed that many of those lost were done in the Impressionist style he was then developing, thereby \"documenting the birth of Impressionism.\" Armand Silvestre, a critic, went so far as to call Pissarro \"basically the inventor of this [Impressionist] painting\"; however, Pissarro's role in the Impressionist movement was \"less that of the great man of ideas than that of the good counselor and appeaser ...\" \"Monet ... could be seen as the guiding force.\"",
"title": "French Impressionism"
},
{
"paragraph_id": 25,
"text": "He soon reestablished his friendships with the other Impressionist artists of his earlier group, including Cézanne, Monet, Manet, Renoir, and Degas. Pissarro now expressed his opinion to the group that he wanted an alternative to the Salon so their group could display their own unique styles.",
"title": "French Impressionism"
},
{
"paragraph_id": 26,
"text": "To assist in that endeavour, in 1873 he helped establish a separate collective, called the \"Société Anonyme des Artistes, Peintres, Sculpteurs et Graveurs,\" which included fifteen artists. Pissarro created the group's first charter and became the \"pivotal\" figure in establishing and holding the group together. One writer noted that with his prematurely grey beard, the forty-three-year-old Pissarro was regarded as a \"wise elder and father figure\" by the group. Yet he was able to work alongside the other artists on equal terms due to his youthful temperament and creativity. Another writer said of him that \"he has unchanging spiritual youth and the look of an ancestor who remained a young man\".",
"title": "French Impressionism"
},
{
"paragraph_id": 27,
"text": "The following year, in 1874, the group held their first 'Impressionist' Exhibition, which shocked and \"horrified\" the critics, who primarily appreciated only scenes portraying religious, historical, or mythological settings. They found fault with the Impressionist paintings on many grounds:",
"title": "French Impressionism"
},
{
"paragraph_id": 28,
"text": "Pissarro showed five of his paintings, all landscapes, at the exhibit, and again Émile Zola praised his art and that of the others. In the Impressionist exhibit of 1876, however, art critic Albert Wolff complained in his review, \"Try to make M. Pissarro understand that trees are not violet, that sky is not the color of fresh butter ...\" Journalist and art critic Octave Mirbeau on the other hand, writes, \"Camille Pissarro has been a revolutionary through the revitalized working methods with which he has endowed painting\". According to Rewald, Pissarro had taken on an attitude more simple and natural than the other artists. He writes:",
"title": "French Impressionism"
},
{
"paragraph_id": 29,
"text": "In later years, Cézanne also recalled this period and referred to Pissarro as \"the first Impressionist\". In 1906, a few years after Pissarro's death, Cézanne, then 67 and a role model for the new generation of artists, paid Pissarro a debt of gratitude by having himself listed in an exhibition catalogue as \"Paul Cézanne, pupil of Pissarro\".",
"title": "French Impressionism"
},
{
"paragraph_id": 30,
"text": "Pissarro, Degas, and American impressionist Mary Cassatt planned a journal of their original prints in the late 1870s, a project that nevertheless came to nothing when Degas withdrew. Art historian and the artist's great-grandson Joachim Pissarro notes that they \"professed a passionate disdain for the Salons and refused to exhibit at them.\" Together they shared an \"almost militant resolution\" against the Salon, and through their later correspondences it is clear that their mutual admiration \"was based on a kinship of ethical as well as aesthetic concerns\".",
"title": "French Impressionism"
},
{
"paragraph_id": 31,
"text": "Cassatt had befriended Degas and Pissarro years earlier when she joined Pissarro's newly formed French Impressionist group and gave up opportunities to exhibit in the United States. She and Pissarro were often treated as \"two outsiders\" by the Salon since neither were French or had become French citizens. However, she was \"fired up with the cause\" of promoting Impressionism and looked forward to exhibiting \"out of solidarity with her new friends\". Towards the end of the 1890s she began to distance herself from the Impressionists, avoiding Degas at times as she did not have the strength to defend herself against his \"wicked tongue\". Instead, she came to prefer the company of \"the gentle Camille Pissarro\", with whom she could speak frankly about the changing attitudes toward art. She once described him as a teacher \"that could have taught the stones to draw correctly.\"",
"title": "French Impressionism"
},
{
"paragraph_id": 32,
"text": "By the 1880s, Pissarro began to explore new themes and methods of painting to break out of what he felt was an artistic \"mire\". As a result, Pissarro went back to his earlier themes by painting the life of country people, which he had done in Venezuela in his youth. Degas described Pissarro's subjects as \"peasants working to make a living\".",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 33,
"text": "However, this period also marked the end of the Impressionist period due to Pissarro's leaving the movement. As Joachim Pissarro points out:",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 34,
"text": "\"Once such a die-hard Impressionist as Pissarro had turned his back on Impressionism, it was apparent that Impressionism had no chance of surviving ...\"",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 35,
"text": "It was Pissarro's intention during this period to help \"educate the public\" by painting people at work or at home in realistic settings, without idealising their lives. Pierre-Auguste Renoir, in 1882, referred to Pissarro's work during this period as \"revolutionary,\" in his attempt to portray the \"common man.\" Pissarro himself did not use his art to overtly preach any kind of political message, however, although his preference for painting humble subjects was intended to be seen and purchased by his upper class clientele. He also began painting with a more unified brushwork along with pure strokes of color.",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 36,
"text": "In 1885 he met Georges Seurat and Paul Signac, both of whom relied on a more \"scientific\" theory of painting by using very small patches of pure colours to create the illusion of blended colours and shading when viewed from a distance. Pissarro then spent the years from 1885 to 1888 practising this more time-consuming and laborious technique, referred to as pointillism. The paintings that resulted were distinctly different from his Impressionist works, and were on display in the 1886 Impressionist Exhibition, but under a separate section, along with works by Seurat, Signac, and his son Lucien.",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 37,
"text": "All four works were considered an \"exception\" to the eighth exhibition. Joachim Pissarro notes that virtually every reviewer who commented on Pissarro's work noted \"his extraordinary capacity to change his art, revise his position and take on new challenges.\" One critic writes:",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 38,
"text": "Pissarro explained the new art form as a \"phase in the logical march of Impressionism\", but he was alone among the other Impressionists with this attitude, however. Joachim Pissarro states that Pissarro thereby became the \"only artist who went from Impressionism to Neo-Impressionism\".",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 39,
"text": "In 1884, art dealer Theo van Gogh asked Pissarro if he would take in his older brother, Vincent, as a boarder in his home. Lucien Pissarro wrote that his father was impressed by Van Gogh's work and had \"foreseen the power of this artist\", who was 23 years younger. Although Van Gogh never boarded with him, Pissarro did explain to him the various ways of finding and expressing light and color, ideas which he later used in his paintings, notes Lucien.",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 40,
"text": "Pissarro eventually turned away from Neo-Impressionism, claiming its system was too artificial. He explains in a letter to a friend:",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 41,
"text": "However, after reverting to his earlier style, his work became, according to Rewald, \"more subtle, his color scheme more refined, his drawing firmer ... So it was that Pissarro approached old age with an increased mastery.\"",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 42,
"text": "But the change also added to Pissarro's continual financial hardship which he felt until his 60s. His \"headstrong courage and a tenacity to undertake and sustain the career of an artist\", writes Joachim Pissarro, was due to his \"lack of fear of the immediate repercussions\" of his stylistic decisions. In addition, his work was strong enough to \"bolster his morale and keep him going\", he writes. His Impressionist contemporaries, however, continued to view his independence as a \"mark of integrity\", and they turned to him for advice, referring to him as \"Père Pissarro\" (father Pissarro).",
"title": "Neo-Impressionist period"
},
{
"paragraph_id": 43,
"text": "In his older age Pissarro suffered from a recurring eye infection that prevented him from working outdoors except in warm weather. As a result of this disability, he began painting outdoor scenes while sitting by the window of hotel rooms. He often chose hotel rooms on upper levels to get a broader view. He moved around northern France and painted from hotels in Rouen, Paris, Le Havre and Dieppe. On his visits to London, he would do the same.",
"title": "Later years"
},
{
"paragraph_id": 44,
"text": "Pissarro died in Paris on 13 November 1903 and was buried in Père Lachaise Cemetery.",
"title": "Later years"
},
{
"paragraph_id": 45,
"text": "During the period Pissarro exhibited his works, art critic Armand Silvestre had called Pissarro the \"most real and most naive member\" of the Impressionist group. His work has also been described by art historian Diane Kelder as expressing \"the same quiet dignity, sincerity, and durability that distinguished his person.\" She adds that \"no member of the group did more to mediate the internecine disputes that threatened at times to break it apart, and no one was a more diligent proselytizer of the new painting.\"",
"title": "Legacy and influence"
},
{
"paragraph_id": 46,
"text": "According to Pissarro's son, Lucien, his father painted regularly with Cézanne beginning in 1872. He recalls that Cézanne walked a few miles to join Pissarro at various settings in Pontoise. While they shared ideas during their work, the younger Cézanne wanted to study the countryside through Pissarro's eyes, as he admired Pissarro's landscapes from the 1860s. Cézanne, although only nine years younger than Pissarro, said that \"he was a father for me. A man to consult and a little like the good Lord.\"",
"title": "Legacy and influence"
},
{
"paragraph_id": 47,
"text": "Lucien Pissarro was taught painting by his father, and described him as a \"splendid teacher, never imposing his personality on his pupil.\" Gauguin, who also studied under him, referred to Pissarro \"as a force with which future artists would have to reckon\". Art historian Diane Kelder notes that it was Pissarro who introduced Gauguin, who was then a young stockbroker studying to become an artist, to Degas and Cézanne. Gauguin, near the end of his career, wrote a letter to a friend in 1902, shortly before Pissarro's death:",
"title": "Legacy and influence"
},
{
"paragraph_id": 48,
"text": "The American impressionist Mary Cassatt, who at one point lived in Paris to study art, and joined his Impressionist group, noted that he was \"such a teacher that he could have taught the stones to draw correctly.\"",
"title": "Legacy and influence"
},
{
"paragraph_id": 49,
"text": "Caribbean author and scholar Derek Walcott based his book-length poem, Tiepolo's Hound (2000), on Pissarro's life.",
"title": "Legacy and influence"
},
{
"paragraph_id": 50,
"text": "During the early 1930s throughout Europe, Jewish owners of numerous fine art masterpieces found themselves forced to give up or sell off their collections for minimal prices due to anti-Jewish laws created by the new Nazi regime. Many Jews were forced to flee Germany starting in 1933, and then, as the Nazis expanded their hold over all of Europe, Austria, France, Holland, Poland, Italy and other countries. The Nazis created special looting organizations like the Reichsleiter Rosenberg Taskforce whose mission it was to seize Jewish property notably valuable artworks. When those forced into exile or deported to extermination camps owned valuables, including artwork, they were often sold to finance the Nazi war effort, sent to Hitler's personal museum, traded or seized by officials for personal gain. Several artworks by Pissarro were looted from their Jewish owners in Germany, France and elsewhere by the Nazis.",
"title": "Legacy and influence"
},
{
"paragraph_id": 51,
"text": "Pissarro's Shepherdess Bringing Home the Sheep (La Bergère Rentrant des Moutons\") was looted from the Jewish art collectors Yvonne et Raoul Meyer in France in 1941 and transited via Switzerland and New York before entering the Fred Jones Jr Museum at the University of Oklahoma. In 2014, Meyer's daughter, Léonie-Noëlle Meyer filed a restitution claim which resulted in years of court battle. The lawsuit resulted in the recognition of Meyer's ownership and its transfer to France for five years, coupled with an agreement to shuttle the painting back and forth between Paris and Oklahoma every three years after that. However, in 2020 Meyer filed suit in a French court to challenge the accord. After Fred Jones Jr Museum sued Meyer requesting heavy financial penalties, the Holocaust survivor abandoned her effort to recover the Pissarro, saying, \"I have no other choice.",
"title": "Legacy and influence"
},
{
"paragraph_id": 52,
"text": "Pissarro's Picking Peas (La Cueillette) was looted from Jewish businessman Simon Bauer, in addition to 92 other artworks seized in 1943 by the Vichy collaborationist regime in France.",
"title": "Legacy and influence"
},
{
"paragraph_id": 53,
"text": "Pissarro's Sower And Ploughman, was owned by Dr Henri Hinrichsen, a Jewish music publisher from Leipzig, until 11 January 1940, when he was forced to relinquish the painting to Hildebrand Gurlitt in Nazi-occupied Brussels, before being murdered in Auschwitz in September 1942.",
"title": "Legacy and influence"
},
{
"paragraph_id": 54,
"text": "Pissarro's “Le Quai Malaquais, Printemps”, owned by German Jewish publisher Samuel Fischer, founder of the famous S. Fischer Verlag, passed through the hands of infamous Nazi art looter Bruno Lohse.",
"title": "Legacy and influence"
},
{
"paragraph_id": 55,
"text": "Pissarro's Le Boulevard de Montmartre, Matinée de Printemps, owned by Max Silberberg, a German Jewish industrialist whose renowned art collection was considered \"one of the best in pre-war Germany\", was seized and sold in a forced auction before Silberberg and his wife Johanna were murdered in Auschwitz.",
"title": "Legacy and influence"
},
{
"paragraph_id": 56,
"text": "In the decades after World War II, many art masterpieces were found on display in various galleries and museums in Europe and the United States, often with false provenances and labels missing. Some, as a result of legal action, were later returned to the families of the original owners. Many of the recovered paintings were then donated to the same or other museums as a gift.",
"title": "Legacy and influence"
},
{
"paragraph_id": 57,
"text": "One such lost piece, Pissarro's 1897 oil painting, Rue St. Honoré, Apres Midi, Effet de Pluie, was discovered hanging at Madrid's government-owned museum, the Museo Thyssen-Bornemisza. In January 2011 the Spanish government denied a request by the US ambassador to return the painting. At the subsequent trial in Los Angeles, the court ruled that the Thyssen-Bornemisza Collection Foundation was the rightful owner. In 1999, Pissarro's 1897 Le Boulevard de Montmartre, Matinée de Printemps appeared in the Israel Museum in Jerusalem, its donor having been unaware of its pre-war provenance. In January 2012, Le Marché aux Poissons (The Fish Market), a color monotype, was returned after 30 years.",
"title": "Legacy and influence"
},
{
"paragraph_id": 58,
"text": "During his lifetime, Camille Pissarro sold few of his paintings. By the 21st century, however, his paintings were selling for millions. An auction record for the artist was set on 6 November 2007 at Christie's in New York, where a group of four paintings, Les Quatre Saisons (the Four Seasons), sold for $14,601,000 (estimate $12,000,000 – $18,000,000). In November 2009 Le Pont Boieldieu et la Gare d'Orléans, Rouen, Soleil sold for $7,026,500 at Sotheby's in New York.",
"title": "Legacy and influence"
},
{
"paragraph_id": 59,
"text": "In February 2014 the 1897 Le Boulevard de Montmartre, Matinée de Printemps, originally owned by the German industrialist and Holocaust victim Max Silberberg (de), sold at Sotheby's in London for £19.9M, nearly five times the previous record.",
"title": "Legacy and influence"
},
{
"paragraph_id": 60,
"text": "In October 2021 Berlin's Alte Nationalgalerie restituted Pissarro's \"A Square in La Roche-Guyon\" (1867) to the heirs of Armand Dorville, a French Jewish art collector whose family was persecuted by the Nazis and whose paintings had been sold at a 1942 auction in Nice that was overseen by the Commissariat Général aux Questions Juives. The museum then purchased the Pissarro back.",
"title": "Legacy and influence"
},
{
"paragraph_id": 61,
"text": "Camille's son Lucien was an Impressionist and Neo-impressionist painter as were his second and third sons Georges Henri Manzana Pissarro and Félix Pissarro. Lucien's daughter Orovida Pissarro was also a painter. Camille's great-grandson, Joachim Pissarro, became Head Curator of Drawing and Painting at the Museum of Modern Art in New York City and a professor in Hunter College's Art Department. Camille's great-granddaughter, Lélia Pissarro, has had her work exhibited alongside her great-grandfather. Another great-granddaughter, Julia Pissarro, a Barnard College graduate, is also active in the art scene. From the only daughter of Camille, Jeanne Pissarro, other painters include Henri Bonin-Pissarro (1918–2003) and Claude Bonin-Pissarro (born 1921), who is the father of the Abstract artist Frédéric Bonin-Pissarro (born 1964).",
"title": "A family of painters"
},
{
"paragraph_id": 62,
"text": "The grandson of Camille Pissarro, Hugues Claude Pissarro (dit Pomié), was born in 1935 in the western section of Paris, Neuilly-sur-Seine, and began to draw and paint as a young child under his father's tutelage. During his adolescence and early twenties he studied the works of the great masters at the Louvre. His work has been featured in exhibitions in Europe and the United States, and he was commissioned by the White House in 1959 to paint a portrait of U.S. President Dwight Eisenhower. He now lives and paints in Donegal, Ireland, with his wife Corinne also an accomplished artist and their children.",
"title": "A family of painters"
},
{
"paragraph_id": 63,
"text": "In June 2006, a three-volume work of 1,500 pages was published, titled Pissarro: Critical Catalogue of Paintings. It was compiled by Joachim Pissarro, descendant of the painter, and Claire Durand-Ruel Snollaerts, descendant of the French art dealer Paul Durand-Ruel. The work is the most comprehensive collection of Pissarro paintings to date. It contains accompanying images of drawings and studies, as well as photographs of Pissarro and his family that had not previously been published.",
"title": "Further reading"
},
{
"paragraph_id": 64,
"text": "",
"title": "External links"
}
] | Jacob Abraham Camille Pissarro was a Danish-French Impressionist and Neo-Impressionist painter born on the island of St Thomas. His importance resides in his contributions to both Impressionism and Post-Impressionism. Pissarro studied from great forerunners, including Gustave Courbet and Jean-Baptiste-Camille Corot. He later studied and worked alongside Georges Seurat and Paul Signac when he took on the Neo-Impressionist style at the age of 54. In 1873 he helped establish a collective society of fifteen aspiring artists, becoming the "pivotal" figure in holding the group together and encouraging the other members. Art historian John Rewald called Pissarro the "dean of the Impressionist painters", not only because he was the oldest of the group, but also "by virtue of his wisdom and his balanced, kind, and warmhearted personality". Paul Cézanne said "he was a father for me. A man to consult and a little like the good Lord", and he was also one of Paul Gauguin's masters. Pierre-Auguste Renoir referred to his work as "revolutionary", through his artistic portrayals of the "common man", as Pissarro insisted on painting individuals in natural settings without "artifice or grandeur". Pissarro is the only artist to have shown his work at all eight Paris Impressionist exhibitions, from 1874 to 1886. He "acted as a father figure not only to the Impressionists" but to all four of the major Post-Impressionists, Cézanne, Seurat, Gauguin, and van Gogh. | 2001-12-11T20:23:41Z | 2023-12-21T03:25:27Z | [
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] | https://en.wikipedia.org/wiki/Camille_Pissarro |
7,435 | Cardiology diagnostic tests and procedures | The diagnostic tests in cardiology are methods of identifying heart conditions associated with healthy vs. unhealthy, pathologic heart function.
Obtaining a medical history is always the first "test", part of understanding the likelihood of significant disease, as detectable within the current limitations of clinical medicine. Yet heart problems often produce no symptoms until very advanced, and many symptoms, such as palpitations and sensations of extra or missing heart beats correlate poorly with relative heart health vs disease. Hence, a history alone is rarely sufficient to diagnose a heart condition.
Auscultation employs a stethoscope to more easily hear various normal and abnormal sounds, such as normal heart beat sounds and the usual heart beat sound changes associated with breathing versus heart murmurs.
A variety of blood tests are available for analyzing cholesterol transport behavior, HDL, LDL, triglycerides, lipoprotein little a, homocysteine, C-reactive protein, blood sugar control: fasting, after eating or averages using glycated albumen or hemoglobin, myoglobin, creatine kinase, troponin, brain-type natriuretic peptide, etc. to assess the evolution of coronary artery disease and evidence of existing damage. A great many more physiologic markers related to atherosclerosis and heart function are used and being developed and evaluated in research.
(*) due to the high cost, LDL is usually calculated instead of being measured directly source: Beyond Cholesterol, Julius Torelli MD, 2005 ISBN 0-312-34863-0
Electrocardiography (ECG/EKG in German vernacular. Elektrokardiogram) monitors electrical activity of the heart, primarily as recorded from the skin surface. A 12 lead recording, recording the electrical activity in three planes, anterior, posterior, and lateral is the most commonly used form. The ECG allows observation of the heart electrical activity by visualizing waveform beat origin (typically from the sinoatrial or SA node) following down the bundle of HIS and ultimately stimulating the ventricles to contract forcing blood through the body. Much can be learned by observing the QRS morphology (named for the respective portions of the polarization/repolarization waveform of the wave, P,Q,R,S,T wave). Rhythm abnormalities can also be visualized as in slow heart rate bradycardia, or fast heart rate tachycardia.
A Fasegraphy allows expanding the system of Electrocardiography diagnostic features, based on the evaluation of the speed characteristics of the process, and thereby increasing the sensitivity and specificity of ECG-diagnostics.
Fasegraphy allows determining the initial features of changes in the cardiac muscle, even on a single-channel ECG, which are underestimated in traditional ECG diagnostics.
A Holter monitor records a continuous EKG rhythm pattern (rarely a full EKG) for 24 hours or more. These monitors are used for suspected frequent rhythm abnormalities, especially ones the wearer may not recognize by symptoms. They are more expensive than event monitors.
An event monitor records short term EKG rhythm patterns, generally storing the last 2 to 5 minutes, adding in new and discarding old data, for 1 to 2 weeks or more. There are several different types with different capabilities. When the wearer presses a button on the monitor, it quits discarding old and continues recording for a short additional period. The wearer then plays the recording, via a standard phone connection, to a center with compatible receiving and rhythm printing equipment, after which the monitor is ready to record again. These monitors are used for suspected infrequent rhythm abnormalities, especially ones the wearer does recognize by symptoms. They are less expensive than Holter monitors.
Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not increase any higher, despite increased exercise. A fairly accurate estimate of the target heart rate, based on extensive clinical research, can be estimated by the formula 220 beats per minute minus patient's age. This linear relation is accurate up to about age 30, after which it mildly underestimates typical maximum attainable heart rates achievable by healthy individuals. Other formulas exist, such as that by Miller (217 - (0.85 × Age)) and others. Achieving a high enough heart rate at the end of exercise is critical to improving the sensitivity of the test to detect high grade heart artery stenosis. High frequency analysis of the QRS complex may be useful for detection of coronary artery disease during an exercise stress test.
The electrophysiology study or EP study is the end all of electrophysiological tests of the heart. It involves a catheter with electrodes probing the endocardium, the inside of the heart, and testing the conduction pathways and electrical activity of individual areas of the heart.
Cardiac imaging techniques include coronary catheterization, echocardiogram, intravascular ultrasound, retinal vessel analysis and the coronary calcium scan. | [
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"paragraph_id": 0,
"text": "The diagnostic tests in cardiology are methods of identifying heart conditions associated with healthy vs. unhealthy, pathologic heart function.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Obtaining a medical history is always the first \"test\", part of understanding the likelihood of significant disease, as detectable within the current limitations of clinical medicine. Yet heart problems often produce no symptoms until very advanced, and many symptoms, such as palpitations and sensations of extra or missing heart beats correlate poorly with relative heart health vs disease. Hence, a history alone is rarely sufficient to diagnose a heart condition.",
"title": "Bedside"
},
{
"paragraph_id": 2,
"text": "Auscultation employs a stethoscope to more easily hear various normal and abnormal sounds, such as normal heart beat sounds and the usual heart beat sound changes associated with breathing versus heart murmurs.",
"title": "Bedside"
},
{
"paragraph_id": 3,
"text": "A variety of blood tests are available for analyzing cholesterol transport behavior, HDL, LDL, triglycerides, lipoprotein little a, homocysteine, C-reactive protein, blood sugar control: fasting, after eating or averages using glycated albumen or hemoglobin, myoglobin, creatine kinase, troponin, brain-type natriuretic peptide, etc. to assess the evolution of coronary artery disease and evidence of existing damage. A great many more physiologic markers related to atherosclerosis and heart function are used and being developed and evaluated in research.",
"title": "Laboratory"
},
{
"paragraph_id": 4,
"text": "(*) due to the high cost, LDL is usually calculated instead of being measured directly source: Beyond Cholesterol, Julius Torelli MD, 2005 ISBN 0-312-34863-0",
"title": "Laboratory"
},
{
"paragraph_id": 5,
"text": "Electrocardiography (ECG/EKG in German vernacular. Elektrokardiogram) monitors electrical activity of the heart, primarily as recorded from the skin surface. A 12 lead recording, recording the electrical activity in three planes, anterior, posterior, and lateral is the most commonly used form. The ECG allows observation of the heart electrical activity by visualizing waveform beat origin (typically from the sinoatrial or SA node) following down the bundle of HIS and ultimately stimulating the ventricles to contract forcing blood through the body. Much can be learned by observing the QRS morphology (named for the respective portions of the polarization/repolarization waveform of the wave, P,Q,R,S,T wave). Rhythm abnormalities can also be visualized as in slow heart rate bradycardia, or fast heart rate tachycardia.",
"title": "Electrophysiology"
},
{
"paragraph_id": 6,
"text": "A Fasegraphy allows expanding the system of Electrocardiography diagnostic features, based on the evaluation of the speed characteristics of the process, and thereby increasing the sensitivity and specificity of ECG-diagnostics.",
"title": "Electrophysiology"
},
{
"paragraph_id": 7,
"text": "Fasegraphy allows determining the initial features of changes in the cardiac muscle, even on a single-channel ECG, which are underestimated in traditional ECG diagnostics.",
"title": "Electrophysiology"
},
{
"paragraph_id": 8,
"text": "A Holter monitor records a continuous EKG rhythm pattern (rarely a full EKG) for 24 hours or more. These monitors are used for suspected frequent rhythm abnormalities, especially ones the wearer may not recognize by symptoms. They are more expensive than event monitors.",
"title": "Electrophysiology"
},
{
"paragraph_id": 9,
"text": "An event monitor records short term EKG rhythm patterns, generally storing the last 2 to 5 minutes, adding in new and discarding old data, for 1 to 2 weeks or more. There are several different types with different capabilities. When the wearer presses a button on the monitor, it quits discarding old and continues recording for a short additional period. The wearer then plays the recording, via a standard phone connection, to a center with compatible receiving and rhythm printing equipment, after which the monitor is ready to record again. These monitors are used for suspected infrequent rhythm abnormalities, especially ones the wearer does recognize by symptoms. They are less expensive than Holter monitors.",
"title": "Electrophysiology"
},
{
"paragraph_id": 10,
"text": "Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not increase any higher, despite increased exercise. A fairly accurate estimate of the target heart rate, based on extensive clinical research, can be estimated by the formula 220 beats per minute minus patient's age. This linear relation is accurate up to about age 30, after which it mildly underestimates typical maximum attainable heart rates achievable by healthy individuals. Other formulas exist, such as that by Miller (217 - (0.85 × Age)) and others. Achieving a high enough heart rate at the end of exercise is critical to improving the sensitivity of the test to detect high grade heart artery stenosis. High frequency analysis of the QRS complex may be useful for detection of coronary artery disease during an exercise stress test.",
"title": "Electrophysiology"
},
{
"paragraph_id": 11,
"text": "The electrophysiology study or EP study is the end all of electrophysiological tests of the heart. It involves a catheter with electrodes probing the endocardium, the inside of the heart, and testing the conduction pathways and electrical activity of individual areas of the heart.",
"title": "Electrophysiology"
},
{
"paragraph_id": 12,
"text": "Cardiac imaging techniques include coronary catheterization, echocardiogram, intravascular ultrasound, retinal vessel analysis and the coronary calcium scan.",
"title": "Medical imaging"
}
] | The diagnostic tests in cardiology are methods of identifying heart conditions associated with healthy vs. unhealthy, pathologic heart function. | 2022-08-21T21:37:00Z | [
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7,437 | Carlo Collodi | Carlo Lorenzini (24 November 1826 – 26 October 1890), better known by the pen name Carlo Collodi (Italian: [ˈkarlo kolˈlɔːdi]), was an Italian author, humourist, and journalist, widely known for his fairy tale novel The Adventures of Pinocchio.
Collodi was born in Florence on 24 November 1826. His mother Angiolina Orzali Lorenzini was a seamstress from Collodi, the town from which he later took the pen name, and his father Domenico Lorenzini was a cook. Both parents worked for the marchese Ginori Lisci. Carlo was the eldest child in the family and he had ten siblings; seven died at a young age. He spent most of his childhood in the town of Collodi where his mother was born. He lived there with his maternal grandmother. After attending primary school, he was sent to study at a theological seminary in Colle Val d’Elsa. An account at the seminary shows that the marchese had offered financial aid, but the boy found that he did not want to be a priest so he continued his education at the College of the Scolopi Fathers in Florence. In 1844, he started working at the Florentine bookstore Libreria Piatti, where he assisted Giuseppe Aiazzi, a prominent Italian manuscript specialist.
During the Italian Wars of Independence in 1848 and 1860, Collodi served as a volunteer with the Tuscan army. His active interest in political matters can be seen in his earliest literary works, as well as in the founding of the satirical newspaper Il Lampione in 1853. This newspaper was censored by order of the Grand Duke of Tuscany. In 1854, he published his second newspaper, Lo scaramuccia ("The Controversy"). Lorenzini's first publications were in his periodicals. A debut came in 1856 with the play Gli amici di casa and parodic guidebook Un romanzo in vapore, both in 1856. By 1860, he published his first notable work called Il signor Alberi ha ragione! (Mr. Alberi Is Right!), which outlined his political and cultural vision of Italy. This is the text where Lorenzini started using the Collodi pseudonym, which was taken from his mother's hometown.
Collodi had also begun intense activity on other political newspapers such as Il Fanfulla; at the same time he was employed by the Censorship Commission for the Theatre. During this period he composed various satirical sketches and stories (sometimes simply by collating earlier articles), including Macchiette (1880), Occhi e nasi (1881), and Storie allegre (1887).
Collodi became disenchanted with Italian politics afterwards, so he turned to children's literature and his first works involved translating French fairy tales into Italian. In 1875, for instance, he completed Racconti delle fate, a translation of French fairy tales by Charles Perrault. In 1876, Collodi wrote Giannettino (inspired by Alessandro Luigi Parravicini's Giannetto), the Minuzzolo, and Il viaggio per l'Italia di Giannettino, a pedagogic series which explored the unification of Italy through the ironic thoughts and actions of the character Giannettino.
Lorenzini became fascinated by the idea of using an amiable, rascally character as a means of expressing his own convictions through allegory. In 1880, he began writing Storia di un burattino (Story of a Marionette), also called Le avventure di Pinocchio, which was published weekly in Giornale per i bambini. Pinocchio was adapted into a 1940 film by Disney that is considered to be one of Disney's greatest films.
Collodi died suddenly in Florence on 26 October 1890 at the age of 63 and is interred at Cimitero Monumentale Delle Porte Sante in Florence. The National Carlo Collodi Foundation was established in 1962 to promote education and the works of Collodi, and Pinocchio Park, which was opened in 1956 in the town of Collodi and remains a popular attraction today. | [
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"text": "Carlo Lorenzini (24 November 1826 – 26 October 1890), better known by the pen name Carlo Collodi (Italian: [ˈkarlo kolˈlɔːdi]), was an Italian author, humourist, and journalist, widely known for his fairy tale novel The Adventures of Pinocchio.",
"title": ""
},
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"text": "Collodi was born in Florence on 24 November 1826. His mother Angiolina Orzali Lorenzini was a seamstress from Collodi, the town from which he later took the pen name, and his father Domenico Lorenzini was a cook. Both parents worked for the marchese Ginori Lisci. Carlo was the eldest child in the family and he had ten siblings; seven died at a young age. He spent most of his childhood in the town of Collodi where his mother was born. He lived there with his maternal grandmother. After attending primary school, he was sent to study at a theological seminary in Colle Val d’Elsa. An account at the seminary shows that the marchese had offered financial aid, but the boy found that he did not want to be a priest so he continued his education at the College of the Scolopi Fathers in Florence. In 1844, he started working at the Florentine bookstore Libreria Piatti, where he assisted Giuseppe Aiazzi, a prominent Italian manuscript specialist.",
"title": "Early life"
},
{
"paragraph_id": 2,
"text": "During the Italian Wars of Independence in 1848 and 1860, Collodi served as a volunteer with the Tuscan army. His active interest in political matters can be seen in his earliest literary works, as well as in the founding of the satirical newspaper Il Lampione in 1853. This newspaper was censored by order of the Grand Duke of Tuscany. In 1854, he published his second newspaper, Lo scaramuccia (\"The Controversy\"). Lorenzini's first publications were in his periodicals. A debut came in 1856 with the play Gli amici di casa and parodic guidebook Un romanzo in vapore, both in 1856. By 1860, he published his first notable work called Il signor Alberi ha ragione! (Mr. Alberi Is Right!), which outlined his political and cultural vision of Italy. This is the text where Lorenzini started using the Collodi pseudonym, which was taken from his mother's hometown.",
"title": "Career"
},
{
"paragraph_id": 3,
"text": "Collodi had also begun intense activity on other political newspapers such as Il Fanfulla; at the same time he was employed by the Censorship Commission for the Theatre. During this period he composed various satirical sketches and stories (sometimes simply by collating earlier articles), including Macchiette (1880), Occhi e nasi (1881), and Storie allegre (1887).",
"title": "Career"
},
{
"paragraph_id": 4,
"text": "Collodi became disenchanted with Italian politics afterwards, so he turned to children's literature and his first works involved translating French fairy tales into Italian. In 1875, for instance, he completed Racconti delle fate, a translation of French fairy tales by Charles Perrault. In 1876, Collodi wrote Giannettino (inspired by Alessandro Luigi Parravicini's Giannetto), the Minuzzolo, and Il viaggio per l'Italia di Giannettino, a pedagogic series which explored the unification of Italy through the ironic thoughts and actions of the character Giannettino.",
"title": "Career"
},
{
"paragraph_id": 5,
"text": "Lorenzini became fascinated by the idea of using an amiable, rascally character as a means of expressing his own convictions through allegory. In 1880, he began writing Storia di un burattino (Story of a Marionette), also called Le avventure di Pinocchio, which was published weekly in Giornale per i bambini. Pinocchio was adapted into a 1940 film by Disney that is considered to be one of Disney's greatest films.",
"title": "Career"
},
{
"paragraph_id": 6,
"text": "Collodi died suddenly in Florence on 26 October 1890 at the age of 63 and is interred at Cimitero Monumentale Delle Porte Sante in Florence. The National Carlo Collodi Foundation was established in 1962 to promote education and the works of Collodi, and Pinocchio Park, which was opened in 1956 in the town of Collodi and remains a popular attraction today.",
"title": "Career"
}
] | Carlo Lorenzini, better known by the pen name Carlo Collodi, was an Italian author, humourist, and journalist, widely known for his fairy tale novel The Adventures of Pinocchio. | 2001-12-12T00:57:39Z | 2023-12-18T15:21:45Z | [
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7,439 | Constructible number | In geometry and algebra, a real number r {\displaystyle r} is constructible if and only if, given a line segment of unit length, a line segment of length | r | {\displaystyle |r|} can be constructed with compass and straightedge in a finite number of steps. Equivalently, r {\displaystyle r} is constructible if and only if there is a closed-form expression for r {\displaystyle r} using only integers and the operations for addition, subtraction, multiplication, division, and square roots.
The geometric definition of constructible numbers motivates a corresponding definition of constructible points, which can again be described either geometrically or algebraically. A point is constructible if it can be produced as one of the points of a compass and straight edge construction (an endpoint of a line segment or crossing point of two lines or circles), starting from a given unit length segment. Alternatively and equivalently, taking the two endpoints of the given segment to be the points (0, 0) and (1, 0) of a Cartesian coordinate system, a point is constructible if and only if its Cartesian coordinates are both constructible numbers. Constructible numbers and points have also been called ruler and compass numbers and ruler and compass points, to distinguish them from numbers and points that may be constructed using other processes.
The set of constructible numbers forms a field: applying any of the four basic arithmetic operations to members of this set produces another constructible number. This field is a field extension of the rational numbers and in turn is contained in the field of algebraic numbers. It is the Euclidean closure of the rational numbers, the smallest field extension of the rationals that includes the square roots of all of its positive numbers.
The proof of the equivalence between the algebraic and geometric definitions of constructible numbers has the effect of transforming geometric questions about compass and straightedge constructions into algebra, including several famous problems from ancient Greek mathematics. The algebraic formulation of these questions led to proofs that their solutions are not constructible, after the geometric formulation of the same problems previously defied centuries of attack.
Let O {\displaystyle O} and A {\displaystyle A} be two given distinct points in the Euclidean plane, and define S {\displaystyle S} to be the set of points that can be constructed with compass and straightedge starting with O {\displaystyle O} and A {\displaystyle A} . Then the points of S {\displaystyle S} are called constructible points. O {\displaystyle O} and A {\displaystyle A} are, by definition, elements of S {\displaystyle S} . To more precisely describe the remaining elements of S {\displaystyle S} , make the following two definitions:
Then, the points of S {\displaystyle S} , besides O {\displaystyle O} and A {\displaystyle A} are:
As an example, the midpoint of constructed segment O A {\displaystyle OA} is a constructible point. One construction for it is to construct two circles with O A {\displaystyle OA} as radius, and the line through the two crossing points of these two circles. Then the midpoint of segment O A {\displaystyle OA} is the point where this segment is crossed by the constructed line.
The starting information for the geometric formulation can be used to define a Cartesian coordinate system in which the point O {\displaystyle O} is associated to the origin having coordinates ( 0 , 0 ) {\displaystyle (0,0)} and in which the point A {\displaystyle A} is associated with the coordinates ( 1 , 0 ) {\displaystyle (1,0)} . The points of S {\displaystyle S} may now be used to link the geometry and algebra by defining a constructible number to be a coordinate of a constructible point.
Equivalent definitions are that a constructible number is the x {\displaystyle x} -coordinate of a constructible point ( x , 0 ) {\displaystyle (x,0)} or the length of a constructible line segment. In one direction of this equivalence, if a constructible point has coordinates ( x , y ) {\displaystyle (x,y)} , then the point ( x , 0 ) {\displaystyle (x,0)} can be constructed as its perpendicular projection onto the x {\displaystyle x} -axis, and the segment from the origin to this point has length x {\displaystyle x} . In the reverse direction, if x {\displaystyle x} is the length of a constructible line segment, then intersecting the x {\displaystyle x} -axis with a circle centered at O {\displaystyle O} with radius x {\displaystyle x} gives the point ( x , 0 ) {\displaystyle (x,0)} . It follows from this equivalence that every point whose Cartesian coordinates are geometrically constructible numbers is itself a geometrically constructible point. For, when x {\displaystyle x} and y {\displaystyle y} are geometrically constructible numbers, point ( x , y ) {\displaystyle (x,y)} can be constructed as the intersection of lines through ( x , 0 ) {\displaystyle (x,0)} and ( 0 , y ) {\displaystyle (0,y)} , perpendicular to the coordinate axes.
The algebraically constructible real numbers are the subset of the real numbers that can be described by formulas that combine integers using the operations of addition, subtraction, multiplication, multiplicative inverse, and square roots of positive numbers. Even more simply, at the expense of making these formulas longer, the integers in these formulas can be restricted to be only 0 and 1. For instance, the square root of 2 is constructible, because it can be described by the formulas 2 {\displaystyle {\sqrt {2}}} or 1 + 1 {\displaystyle {\sqrt {1+1}}} .
Analogously, the algebraically constructible complex numbers are the subset of complex numbers that have formulas of the same type, using a more general version of the square root that is not restricted to positive numbers but can instead take arbitrary complex numbers as its argument, and produces the principal square root of its argument. Alternatively, the same system of complex numbers may be defined as the complex numbers whose real and imaginary parts are both constructible real numbers. For instance, the complex number i {\displaystyle i} has the formulas − 1 {\displaystyle {\sqrt {-1}}} or 0 − 1 {\displaystyle {\sqrt {0-1}}} , and its real and imaginary parts are the constructible numbers 0 and 1 respectively.
These two definitions of the constructible complex numbers are equivalent. In one direction, if q = x + i y {\displaystyle q=x+iy} is a complex number whose real part x {\displaystyle x} and imaginary part y {\displaystyle y} are both constructible real numbers, then replacing x {\displaystyle x} and y {\displaystyle y} by their formulas within the larger formula x + y − 1 {\displaystyle x+y{\sqrt {-1}}} produces a formula for q {\displaystyle q} as a complex number. In the other direction, any formula for an algebraically constructible complex number can be transformed into formulas for its real and imaginary parts, by recursively expanding each operation in the formula into operations on the real and imaginary parts of its arguments, using the expansions
The algebraically constructible points may be defined as the points whose two real Cartesian coordinates are both algebraically constructible real numbers. Alternatively, they may be defined as the points in the complex plane given by algebraically constructible complex numbers. By the equivalence between the two definitions for algebraically constructible complex numbers, these two definitions of algebraically constructible points are also equivalent.
If a {\displaystyle a} and b {\displaystyle b} are the non-zero lengths of geometrically constructed segments then elementary compass and straightedge constructions can be used to obtain constructed segments of lengths a + b {\displaystyle a+b} , | a − b | {\displaystyle |a-b|} , a b {\displaystyle ab} , and a / b {\displaystyle a/b} . The latter two can be done with a construction based on the intercept theorem. A slightly less elementary construction using these tools is based on the geometric mean theorem and will construct a segment of length a {\displaystyle {\sqrt {a}}} from a constructed segment of length a {\displaystyle a} . It follows that every algebraically constructible number is geometrically constructible, by using these techniques to translate a formula for the number into a construction for the number.
In the other direction, a set of geometric objects may be specified by algebraically constructible real numbers: coordinates for points, slope and y {\displaystyle y} -intercept for lines, and center and radius for circles. It is possible (but tedious) to develop formulas in terms of these values, using only arithmetic and square roots, for each additional object that might be added in a single step of a compass-and-straightedge construction. It follows from these formulas that every geometrically constructible number is algebraically constructible.
The definition of algebraically constructible numbers includes the sum, difference, product, and multiplicative inverse of any of these numbers, the same operations that define a field in abstract algebra. Thus, the constructible numbers (defined in any of the above ways) form a field. More specifically, the constructible real numbers form a Euclidean field, an ordered field containing a square root of each of its positive elements. Examining the properties of this field and its subfields leads to necessary conditions on a number to be constructible, that can be used to show that specific numbers arising in classical geometric construction problems are not constructible.
It is convenient to consider, in place of the whole field of constructible numbers, the subfield Q ( γ ) {\displaystyle \mathbb {Q} (\gamma )} generated by any given constructible number γ {\displaystyle \gamma } , and to use the algebraic construction of γ {\displaystyle \gamma } to decompose this field. If γ {\displaystyle \gamma } is a constructible real number, then the values occurring within a formula constructing it can be used to produce a finite sequence of real numbers α 1 , … , a n = γ {\displaystyle \alpha _{1},\dots ,a_{n}=\gamma } such that, for each i {\displaystyle i} , Q ( α 1 , … , a i ) {\displaystyle \mathbb {Q} (\alpha _{1},\dots ,a_{i})} is an extension of Q ( α 1 , … , a i − 1 ) {\displaystyle \mathbb {Q} (\alpha _{1},\dots ,a_{i-1})} of degree 2. Using slightly different terminology, a real number is constructible if and only if it lies in a field at the top of a finite tower of real quadratic extensions,
starting with the rational field Q {\displaystyle \mathbb {Q} } where γ {\displaystyle \gamma } is in K n {\displaystyle K_{n}} and for all 0 < j ≤ n {\displaystyle 0<j\leq n} , [ K j : K j − 1 ] = 2 {\displaystyle [K_{j}:K_{j-1}]=2} . It follows from this decomposition that the degree of the field extension [ Q ( γ ) : Q ] {\displaystyle [\mathbb {Q} (\gamma ):\mathbb {Q} ]} is 2 r {\displaystyle 2^{r}} , where r {\displaystyle r} counts the number of quadratic extension steps.
Analogously to the real case, a complex number is constructible if and only if it lies in a field at the top of a finite tower of complex quadratic extensions. More precisely, γ {\displaystyle \gamma } is constructible if and only if there exists a tower of fields
where γ {\displaystyle \gamma } is in F n {\displaystyle F_{n}} , and for all 0 < j ≤ n {\displaystyle 0<j\leq n} , [ F j : F j − 1 ] = 2 {\displaystyle [F_{j}:F_{j-1}]=2} . The difference between this characterization and that of the real constructible numbers is only that the fields in this tower are not restricted to being real. Consequently, if a complex number γ {\displaystyle \gamma } is constructible, then [ Q ( γ ) : Q ] {\displaystyle [\mathbb {Q} (\gamma ):\mathbb {Q} ]} is a power of two. However, this necessary condition is not sufficient: there exist field extensions whose degree is a power of two that cannot be factored into a sequence of quadratic extensions.
The fields that can be generated in this way from towers of quadratic extensions of Q {\displaystyle \mathbb {Q} } are called iterated quadratic extensions of Q {\displaystyle \mathbb {Q} } . The fields of real and complex constructible numbers are the unions of all real or complex iterated quadratic extensions of Q {\displaystyle \mathbb {Q} } .
Trigonometric numbers are the cosines or sines of angles that are rational multiples of π {\displaystyle \pi } . These numbers are always algebraic, but they may not be constructible. The cosine or sine of the angle 2 π / n {\displaystyle 2\pi /n} is constructible only for certain special numbers n {\displaystyle n} :
Thus, for example, cos ( π / 15 ) {\displaystyle \cos(\pi /15)} is constructible because 15 is the product of two Fermat primes, 3 and 5.
The ancient Greeks thought that certain problems of straightedge and compass construction they could not solve were simply obstinate, not unsolvable. However, the non-constructibility of certain numbers proves that these constructions are logically impossible to perform. (The problems themselves, however, are solvable using methods that go beyond the constraint of working only with straightedge and compass, and the Greeks knew how to solve them in this way. One such example is Archimedes' Neusis construction solution of the problem of Angle trisection.)
In particular, the algebraic formulation of constructible numbers leads to a proof of the impossibility of the following construction problems:
The birth of the concept of constructible numbers is inextricably linked with the history of the three impossible compass and straightedge constructions: doubling the cube, trisecting an angle, and squaring the circle. The restriction of using only compass and straightedge in geometric constructions is often credited to Plato due to a passage in Plutarch. According to Plutarch, Plato gave the duplication of the cube (Delian) problem to Eudoxus and Archytas and Menaechmus, who solved the problem using mechanical means, earning a rebuke from Plato for not solving the problem using pure geometry. However, this attribution is challenged, due, in part, to the existence of another version of the story (attributed to Eratosthenes by Eutocius of Ascalon) that says that all three found solutions but they were too abstract to be of practical value. Proclus, citing Eudemus of Rhodes, credited Oenopides (circa 450 BCE) with two ruler and compass constructions, leading some authors to hypothesize that Oenopides originated the restriction. The restriction to compass and straightedge is essential to the impossibility of the classic construction problems. Angle trisection, for instance, can be done in many ways, several known to the ancient Greeks. The Quadratrix of Hippias of Elis, the conics of Menaechmus, or the marked straightedge (neusis) construction of Archimedes have all been used, as has a more modern approach via paper folding.
Although not one of the classic three construction problems, the problem of constructing regular polygons with straightedge and compass is often treated alongside them. The Greeks knew how to construct regular n {\displaystyle n} -gons with n = 2 h {\displaystyle n=2^{h}} (for any integer h ≥ 2 {\displaystyle h\geq 2} ), 3, 5, or the product of any two or three of these numbers, but other regular n {\displaystyle n} -gons eluded them. In 1796 Carl Friedrich Gauss, then an eighteen-year-old student, announced in a newspaper that he had constructed a regular 17-gon with straightedge and compass. Gauss's treatment was algebraic rather than geometric; in fact, he did not actually construct the polygon, but rather showed that the cosine of a central angle was a constructible number. The argument was generalized in his 1801 book Disquisitiones Arithmeticae giving the sufficient condition for the construction of a regular n {\displaystyle n} -gon. Gauss claimed, but did not prove, that the condition was also necessary and several authors, notably Felix Klein, attributed this part of the proof to him as well. Alhazen's problem is also not one of the classic three problems, but despite being named after Ibn al-Haytham (Alhazen), a medieval Islamic mathematician, it already appear's in Ptolemy's work on optics from the second century.
Pierre Wantzel (1837) proved algebraically that the problems of doubling the cube and trisecting the angle are impossible to solve if one uses only compass and straightedge. In the same paper he also solved the problem of determining which regular polygons are constructible: a regular polygon is constructible if and only if the number of its sides is the product of a power of two and any number of distinct Fermat primes (i.e., the sufficient conditions given by Gauss are also necessary). An attempted proof of the impossibility of squaring the circle was given by James Gregory in Vera Circuli et Hyperbolae Quadratura (The True Squaring of the Circle and of the Hyperbola) in 1667. Although his proof was faulty, it was the first paper to attempt to solve the problem using algebraic properties of π. It was not until 1882 that Ferdinand von Lindemann rigorously proved its impossibility, by extending the work of Charles Hermite and proving that π is a transcendental number. Alhazen's problem was not proved impossible to solve by compass and straightedge until the work of Elkin (1965).
The study of constructible numbers, per se, was initiated by René Descartes in La Géométrie, an appendix to his book Discourse on the Method published in 1637. Descartes associated numbers to geometrical line segments in order to display the power of his philosophical method by solving an ancient straightedge and compass construction problem put forth by Pappus. | [
{
"paragraph_id": 0,
"text": "In geometry and algebra, a real number r {\\displaystyle r} is constructible if and only if, given a line segment of unit length, a line segment of length | r | {\\displaystyle |r|} can be constructed with compass and straightedge in a finite number of steps. Equivalently, r {\\displaystyle r} is constructible if and only if there is a closed-form expression for r {\\displaystyle r} using only integers and the operations for addition, subtraction, multiplication, division, and square roots.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The geometric definition of constructible numbers motivates a corresponding definition of constructible points, which can again be described either geometrically or algebraically. A point is constructible if it can be produced as one of the points of a compass and straight edge construction (an endpoint of a line segment or crossing point of two lines or circles), starting from a given unit length segment. Alternatively and equivalently, taking the two endpoints of the given segment to be the points (0, 0) and (1, 0) of a Cartesian coordinate system, a point is constructible if and only if its Cartesian coordinates are both constructible numbers. Constructible numbers and points have also been called ruler and compass numbers and ruler and compass points, to distinguish them from numbers and points that may be constructed using other processes.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The set of constructible numbers forms a field: applying any of the four basic arithmetic operations to members of this set produces another constructible number. This field is a field extension of the rational numbers and in turn is contained in the field of algebraic numbers. It is the Euclidean closure of the rational numbers, the smallest field extension of the rationals that includes the square roots of all of its positive numbers.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The proof of the equivalence between the algebraic and geometric definitions of constructible numbers has the effect of transforming geometric questions about compass and straightedge constructions into algebra, including several famous problems from ancient Greek mathematics. The algebraic formulation of these questions led to proofs that their solutions are not constructible, after the geometric formulation of the same problems previously defied centuries of attack.",
"title": ""
},
{
"paragraph_id": 4,
"text": "Let O {\\displaystyle O} and A {\\displaystyle A} be two given distinct points in the Euclidean plane, and define S {\\displaystyle S} to be the set of points that can be constructed with compass and straightedge starting with O {\\displaystyle O} and A {\\displaystyle A} . Then the points of S {\\displaystyle S} are called constructible points. O {\\displaystyle O} and A {\\displaystyle A} are, by definition, elements of S {\\displaystyle S} . To more precisely describe the remaining elements of S {\\displaystyle S} , make the following two definitions:",
"title": "Geometric definitions"
},
{
"paragraph_id": 5,
"text": "Then, the points of S {\\displaystyle S} , besides O {\\displaystyle O} and A {\\displaystyle A} are:",
"title": "Geometric definitions"
},
{
"paragraph_id": 6,
"text": "As an example, the midpoint of constructed segment O A {\\displaystyle OA} is a constructible point. One construction for it is to construct two circles with O A {\\displaystyle OA} as radius, and the line through the two crossing points of these two circles. Then the midpoint of segment O A {\\displaystyle OA} is the point where this segment is crossed by the constructed line.",
"title": "Geometric definitions"
},
{
"paragraph_id": 7,
"text": "The starting information for the geometric formulation can be used to define a Cartesian coordinate system in which the point O {\\displaystyle O} is associated to the origin having coordinates ( 0 , 0 ) {\\displaystyle (0,0)} and in which the point A {\\displaystyle A} is associated with the coordinates ( 1 , 0 ) {\\displaystyle (1,0)} . The points of S {\\displaystyle S} may now be used to link the geometry and algebra by defining a constructible number to be a coordinate of a constructible point.",
"title": "Geometric definitions"
},
{
"paragraph_id": 8,
"text": "Equivalent definitions are that a constructible number is the x {\\displaystyle x} -coordinate of a constructible point ( x , 0 ) {\\displaystyle (x,0)} or the length of a constructible line segment. In one direction of this equivalence, if a constructible point has coordinates ( x , y ) {\\displaystyle (x,y)} , then the point ( x , 0 ) {\\displaystyle (x,0)} can be constructed as its perpendicular projection onto the x {\\displaystyle x} -axis, and the segment from the origin to this point has length x {\\displaystyle x} . In the reverse direction, if x {\\displaystyle x} is the length of a constructible line segment, then intersecting the x {\\displaystyle x} -axis with a circle centered at O {\\displaystyle O} with radius x {\\displaystyle x} gives the point ( x , 0 ) {\\displaystyle (x,0)} . It follows from this equivalence that every point whose Cartesian coordinates are geometrically constructible numbers is itself a geometrically constructible point. For, when x {\\displaystyle x} and y {\\displaystyle y} are geometrically constructible numbers, point ( x , y ) {\\displaystyle (x,y)} can be constructed as the intersection of lines through ( x , 0 ) {\\displaystyle (x,0)} and ( 0 , y ) {\\displaystyle (0,y)} , perpendicular to the coordinate axes.",
"title": "Geometric definitions"
},
{
"paragraph_id": 9,
"text": "The algebraically constructible real numbers are the subset of the real numbers that can be described by formulas that combine integers using the operations of addition, subtraction, multiplication, multiplicative inverse, and square roots of positive numbers. Even more simply, at the expense of making these formulas longer, the integers in these formulas can be restricted to be only 0 and 1. For instance, the square root of 2 is constructible, because it can be described by the formulas 2 {\\displaystyle {\\sqrt {2}}} or 1 + 1 {\\displaystyle {\\sqrt {1+1}}} .",
"title": "Algebraic definitions"
},
{
"paragraph_id": 10,
"text": "Analogously, the algebraically constructible complex numbers are the subset of complex numbers that have formulas of the same type, using a more general version of the square root that is not restricted to positive numbers but can instead take arbitrary complex numbers as its argument, and produces the principal square root of its argument. Alternatively, the same system of complex numbers may be defined as the complex numbers whose real and imaginary parts are both constructible real numbers. For instance, the complex number i {\\displaystyle i} has the formulas − 1 {\\displaystyle {\\sqrt {-1}}} or 0 − 1 {\\displaystyle {\\sqrt {0-1}}} , and its real and imaginary parts are the constructible numbers 0 and 1 respectively.",
"title": "Algebraic definitions"
},
{
"paragraph_id": 11,
"text": "These two definitions of the constructible complex numbers are equivalent. In one direction, if q = x + i y {\\displaystyle q=x+iy} is a complex number whose real part x {\\displaystyle x} and imaginary part y {\\displaystyle y} are both constructible real numbers, then replacing x {\\displaystyle x} and y {\\displaystyle y} by their formulas within the larger formula x + y − 1 {\\displaystyle x+y{\\sqrt {-1}}} produces a formula for q {\\displaystyle q} as a complex number. In the other direction, any formula for an algebraically constructible complex number can be transformed into formulas for its real and imaginary parts, by recursively expanding each operation in the formula into operations on the real and imaginary parts of its arguments, using the expansions",
"title": "Algebraic definitions"
},
{
"paragraph_id": 12,
"text": "The algebraically constructible points may be defined as the points whose two real Cartesian coordinates are both algebraically constructible real numbers. Alternatively, they may be defined as the points in the complex plane given by algebraically constructible complex numbers. By the equivalence between the two definitions for algebraically constructible complex numbers, these two definitions of algebraically constructible points are also equivalent.",
"title": "Algebraic definitions"
},
{
"paragraph_id": 13,
"text": "If a {\\displaystyle a} and b {\\displaystyle b} are the non-zero lengths of geometrically constructed segments then elementary compass and straightedge constructions can be used to obtain constructed segments of lengths a + b {\\displaystyle a+b} , | a − b | {\\displaystyle |a-b|} , a b {\\displaystyle ab} , and a / b {\\displaystyle a/b} . The latter two can be done with a construction based on the intercept theorem. A slightly less elementary construction using these tools is based on the geometric mean theorem and will construct a segment of length a {\\displaystyle {\\sqrt {a}}} from a constructed segment of length a {\\displaystyle a} . It follows that every algebraically constructible number is geometrically constructible, by using these techniques to translate a formula for the number into a construction for the number.",
"title": "Equivalence of algebraic and geometric definitions"
},
{
"paragraph_id": 14,
"text": "In the other direction, a set of geometric objects may be specified by algebraically constructible real numbers: coordinates for points, slope and y {\\displaystyle y} -intercept for lines, and center and radius for circles. It is possible (but tedious) to develop formulas in terms of these values, using only arithmetic and square roots, for each additional object that might be added in a single step of a compass-and-straightedge construction. It follows from these formulas that every geometrically constructible number is algebraically constructible.",
"title": "Equivalence of algebraic and geometric definitions"
},
{
"paragraph_id": 15,
"text": "The definition of algebraically constructible numbers includes the sum, difference, product, and multiplicative inverse of any of these numbers, the same operations that define a field in abstract algebra. Thus, the constructible numbers (defined in any of the above ways) form a field. More specifically, the constructible real numbers form a Euclidean field, an ordered field containing a square root of each of its positive elements. Examining the properties of this field and its subfields leads to necessary conditions on a number to be constructible, that can be used to show that specific numbers arising in classical geometric construction problems are not constructible.",
"title": "Algebraic properties"
},
{
"paragraph_id": 16,
"text": "It is convenient to consider, in place of the whole field of constructible numbers, the subfield Q ( γ ) {\\displaystyle \\mathbb {Q} (\\gamma )} generated by any given constructible number γ {\\displaystyle \\gamma } , and to use the algebraic construction of γ {\\displaystyle \\gamma } to decompose this field. If γ {\\displaystyle \\gamma } is a constructible real number, then the values occurring within a formula constructing it can be used to produce a finite sequence of real numbers α 1 , … , a n = γ {\\displaystyle \\alpha _{1},\\dots ,a_{n}=\\gamma } such that, for each i {\\displaystyle i} , Q ( α 1 , … , a i ) {\\displaystyle \\mathbb {Q} (\\alpha _{1},\\dots ,a_{i})} is an extension of Q ( α 1 , … , a i − 1 ) {\\displaystyle \\mathbb {Q} (\\alpha _{1},\\dots ,a_{i-1})} of degree 2. Using slightly different terminology, a real number is constructible if and only if it lies in a field at the top of a finite tower of real quadratic extensions,",
"title": "Algebraic properties"
},
{
"paragraph_id": 17,
"text": "starting with the rational field Q {\\displaystyle \\mathbb {Q} } where γ {\\displaystyle \\gamma } is in K n {\\displaystyle K_{n}} and for all 0 < j ≤ n {\\displaystyle 0<j\\leq n} , [ K j : K j − 1 ] = 2 {\\displaystyle [K_{j}:K_{j-1}]=2} . It follows from this decomposition that the degree of the field extension [ Q ( γ ) : Q ] {\\displaystyle [\\mathbb {Q} (\\gamma ):\\mathbb {Q} ]} is 2 r {\\displaystyle 2^{r}} , where r {\\displaystyle r} counts the number of quadratic extension steps.",
"title": "Algebraic properties"
},
{
"paragraph_id": 18,
"text": "Analogously to the real case, a complex number is constructible if and only if it lies in a field at the top of a finite tower of complex quadratic extensions. More precisely, γ {\\displaystyle \\gamma } is constructible if and only if there exists a tower of fields",
"title": "Algebraic properties"
},
{
"paragraph_id": 19,
"text": "where γ {\\displaystyle \\gamma } is in F n {\\displaystyle F_{n}} , and for all 0 < j ≤ n {\\displaystyle 0<j\\leq n} , [ F j : F j − 1 ] = 2 {\\displaystyle [F_{j}:F_{j-1}]=2} . The difference between this characterization and that of the real constructible numbers is only that the fields in this tower are not restricted to being real. Consequently, if a complex number γ {\\displaystyle \\gamma } is constructible, then [ Q ( γ ) : Q ] {\\displaystyle [\\mathbb {Q} (\\gamma ):\\mathbb {Q} ]} is a power of two. However, this necessary condition is not sufficient: there exist field extensions whose degree is a power of two that cannot be factored into a sequence of quadratic extensions.",
"title": "Algebraic properties"
},
{
"paragraph_id": 20,
"text": "The fields that can be generated in this way from towers of quadratic extensions of Q {\\displaystyle \\mathbb {Q} } are called iterated quadratic extensions of Q {\\displaystyle \\mathbb {Q} } . The fields of real and complex constructible numbers are the unions of all real or complex iterated quadratic extensions of Q {\\displaystyle \\mathbb {Q} } .",
"title": "Algebraic properties"
},
{
"paragraph_id": 21,
"text": "Trigonometric numbers are the cosines or sines of angles that are rational multiples of π {\\displaystyle \\pi } . These numbers are always algebraic, but they may not be constructible. The cosine or sine of the angle 2 π / n {\\displaystyle 2\\pi /n} is constructible only for certain special numbers n {\\displaystyle n} :",
"title": "Trigonometric numbers"
},
{
"paragraph_id": 22,
"text": "Thus, for example, cos ( π / 15 ) {\\displaystyle \\cos(\\pi /15)} is constructible because 15 is the product of two Fermat primes, 3 and 5.",
"title": "Trigonometric numbers"
},
{
"paragraph_id": 23,
"text": "The ancient Greeks thought that certain problems of straightedge and compass construction they could not solve were simply obstinate, not unsolvable. However, the non-constructibility of certain numbers proves that these constructions are logically impossible to perform. (The problems themselves, however, are solvable using methods that go beyond the constraint of working only with straightedge and compass, and the Greeks knew how to solve them in this way. One such example is Archimedes' Neusis construction solution of the problem of Angle trisection.)",
"title": "Impossible constructions"
},
{
"paragraph_id": 24,
"text": "In particular, the algebraic formulation of constructible numbers leads to a proof of the impossibility of the following construction problems:",
"title": "Impossible constructions"
},
{
"paragraph_id": 25,
"text": "The birth of the concept of constructible numbers is inextricably linked with the history of the three impossible compass and straightedge constructions: doubling the cube, trisecting an angle, and squaring the circle. The restriction of using only compass and straightedge in geometric constructions is often credited to Plato due to a passage in Plutarch. According to Plutarch, Plato gave the duplication of the cube (Delian) problem to Eudoxus and Archytas and Menaechmus, who solved the problem using mechanical means, earning a rebuke from Plato for not solving the problem using pure geometry. However, this attribution is challenged, due, in part, to the existence of another version of the story (attributed to Eratosthenes by Eutocius of Ascalon) that says that all three found solutions but they were too abstract to be of practical value. Proclus, citing Eudemus of Rhodes, credited Oenopides (circa 450 BCE) with two ruler and compass constructions, leading some authors to hypothesize that Oenopides originated the restriction. The restriction to compass and straightedge is essential to the impossibility of the classic construction problems. Angle trisection, for instance, can be done in many ways, several known to the ancient Greeks. The Quadratrix of Hippias of Elis, the conics of Menaechmus, or the marked straightedge (neusis) construction of Archimedes have all been used, as has a more modern approach via paper folding.",
"title": "History"
},
{
"paragraph_id": 26,
"text": "Although not one of the classic three construction problems, the problem of constructing regular polygons with straightedge and compass is often treated alongside them. The Greeks knew how to construct regular n {\\displaystyle n} -gons with n = 2 h {\\displaystyle n=2^{h}} (for any integer h ≥ 2 {\\displaystyle h\\geq 2} ), 3, 5, or the product of any two or three of these numbers, but other regular n {\\displaystyle n} -gons eluded them. In 1796 Carl Friedrich Gauss, then an eighteen-year-old student, announced in a newspaper that he had constructed a regular 17-gon with straightedge and compass. Gauss's treatment was algebraic rather than geometric; in fact, he did not actually construct the polygon, but rather showed that the cosine of a central angle was a constructible number. The argument was generalized in his 1801 book Disquisitiones Arithmeticae giving the sufficient condition for the construction of a regular n {\\displaystyle n} -gon. Gauss claimed, but did not prove, that the condition was also necessary and several authors, notably Felix Klein, attributed this part of the proof to him as well. Alhazen's problem is also not one of the classic three problems, but despite being named after Ibn al-Haytham (Alhazen), a medieval Islamic mathematician, it already appear's in Ptolemy's work on optics from the second century.",
"title": "History"
},
{
"paragraph_id": 27,
"text": "Pierre Wantzel (1837) proved algebraically that the problems of doubling the cube and trisecting the angle are impossible to solve if one uses only compass and straightedge. In the same paper he also solved the problem of determining which regular polygons are constructible: a regular polygon is constructible if and only if the number of its sides is the product of a power of two and any number of distinct Fermat primes (i.e., the sufficient conditions given by Gauss are also necessary). An attempted proof of the impossibility of squaring the circle was given by James Gregory in Vera Circuli et Hyperbolae Quadratura (The True Squaring of the Circle and of the Hyperbola) in 1667. Although his proof was faulty, it was the first paper to attempt to solve the problem using algebraic properties of π. It was not until 1882 that Ferdinand von Lindemann rigorously proved its impossibility, by extending the work of Charles Hermite and proving that π is a transcendental number. Alhazen's problem was not proved impossible to solve by compass and straightedge until the work of Elkin (1965).",
"title": "History"
},
{
"paragraph_id": 28,
"text": "The study of constructible numbers, per se, was initiated by René Descartes in La Géométrie, an appendix to his book Discourse on the Method published in 1637. Descartes associated numbers to geometrical line segments in order to display the power of his philosophical method by solving an ancient straightedge and compass construction problem put forth by Pappus.",
"title": "History"
}
] | In geometry and algebra, a real number r is constructible if and only if, given a line segment of unit length, a line segment of length | r | can be constructed with compass and straightedge in a finite number of steps. Equivalently, r is constructible if and only if there is a closed-form expression for r using only integers and the operations for addition, subtraction, multiplication, division, and square roots. The geometric definition of constructible numbers motivates a corresponding definition of constructible points, which can again be described either geometrically or algebraically. A point is constructible if it can be produced as one of the points of a compass and straight edge construction, starting from a given unit length segment. Alternatively and equivalently, taking the two endpoints of the given segment to be the points and of a Cartesian coordinate system, a point is constructible if and only if its Cartesian coordinates are both constructible numbers. Constructible numbers and points have also been called ruler and compass numbers and ruler and compass points, to distinguish them from numbers and points that may be constructed using other processes. The set of constructible numbers forms a field: applying any of the four basic arithmetic operations to members of this set produces another constructible number. This field is a field extension of the rational numbers and in turn is contained in the field of algebraic numbers. It is the Euclidean closure of the rational numbers, the smallest field extension of the rationals that includes the square roots of all of its positive numbers. The proof of the equivalence between the algebraic and geometric definitions of constructible numbers has the effect of transforming geometric questions about compass and straightedge constructions into algebra, including several famous problems from ancient Greek mathematics. The algebraic formulation of these questions led to proofs that their solutions are not constructible, after the geometric formulation of the same problems previously defied centuries of attack. | 2023-06-10T23:51:48Z | [
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7,441 | Carson City, Nevada | Carson City is an independent city and the capital of the U.S. state of Nevada. As of the 2020 census, the population was 58,639, making it the 6th most populous city in the state. The majority of the city's population lives in Eagle Valley, on the eastern edge of the Carson Range, a branch of the Sierra Nevada, about 30 miles (50 km) south of Reno. The city is named after the mountain man Kit Carson. The town began as a stopover for California-bound immigrants, but developed into a city with the Comstock Lode, a silver strike in the mountains to the northeast. The city has served as Nevada's capital since statehood in 1864; for much of its history it was a hub for the Virginia and Truckee Railroad, although the tracks were removed in 1950.
Before 1969, Carson City was the county seat of Ormsby County. That year the state legislature abolished the county and included its territory into a revised city charter for a Consolidated Municipality of Carson City. With the consolidation, the city limits extend west across the Sierra Nevada to the California state line in the middle of Lake Tahoe. Like other independent cities in the United States, it is treated as a county-equivalent for census purposes.
The Washoe people have inhabited the valley and surrounding areas for about 6,000 years.
The first European Americans to arrive in what is now known as Eagle Valley were John C. Frémont and his exploration party in January 1843. Fremont named the river flowing through the valley Carson River in honor of Kit Carson, the mountain man and scout he had hired for his expedition. Later, settlers named the area Washoe, in reference to the indigenous people.
By 1851, the Eagle Station ranch along the Carson River was a trading post and stopover for travelers on the California Trail's Carson Branch, which ran through Eagle Valley. The valley and trading post received their name from a bald eagle that was hunted and killed by one of the early settlers and was featured on a wall inside the post.
As the area was part of the Utah Territory, it was governed from Salt Lake City, where the territorial government was headquartered. Early settlers bristled at the control by Mormon-influenced officials and desired the creation of the Nevada territory. A vigilante group of influential settlers, headed by Abraham Curry, sought a site for a capital city for the envisioned territory. In 1858, Abraham Curry bought Eagle Station and the settlement was thereafter renamed Carson City. Curry and several other partners had Eagle Valley surveyed for development. Curry decided Carson City would someday serve as the capital city and left a 10-acre (40,000 m) plot in the center of town for a capitol building.
After gold and silver were discovered in 1859 on nearby Comstock Lode, Carson City's population began to grow. Curry built the Warm Springs Hotel a mile to the east of the city center. When territorial governor James W. Nye traveled to Nevada, he chose Carson City as the territorial capital, influenced by Carson City lawyer William Stewart, who escorted him from San Francisco to Nevada. As such, Carson City bested Virginia City and American Flat. Curry loaned the Warm Springs Hotel to the territorial Legislature as a meeting hall. The Legislature named Carson City to be the seat of Ormsby County and selected the hotel as the territorial prison, with Curry serving as its first warden. Today, the property is still part of the state prison.
When Nevada became a state in 1864 during the American Civil War, Carson City was confirmed as Nevada's permanent capital. Carson City's development was no longer dependent on the mining industry and instead became a thriving commercial center. The Virginia and Truckee Railroad was built between Virginia City and Carson City. A log flume was also built from the Sierra Nevada into Carson City. The current capitol building was constructed from 1870 to 1871. The United States Mint operated the Carson City Mint between the years 1870 and 1893, which struck gold and silver coins. People came from China during that time, many to work on the railroad. Some of them owned businesses and taught school. By 1880, almost a thousand Chinese people, "one for every five Caucasians", lived in Carson City.
Carson City's population and transportation traffic decreased when the Central Pacific Railroad built a line through Donner Pass, too far to the north to benefit Carson City. The city was slightly revitalized with the mining booms in Tonopah and Goldfield. The US federal building (now renamed the Paul Laxalt Building) was completed in 1890 as was the Stewart Indian School. Even these developments could not prevent the city's population from dropping to just over 1,500 people by 1930. Carson City resigned itself to small city status, advertising itself as "America's smallest capital". The city slowly grew after World War II; by 1960, it had reached its 1880 boom-time population.
As early as the late 1940s, discussions began about merging Ormsby County and Carson City. By this time, the county was little more than Carson City and a few hamlets to the west. However, the effort did not pay off until 1966, when a statewide referendum approved the merger. The required constitutional amendment was passed in 1968. On April 1, 1969, Ormsby County and Carson City officially merged as the Consolidated Municipality of Carson City. With this consolidation, Carson City absorbed former town sites such as Empire City, which had grown up in the 1860s as a milling center along the Carson River and current U.S. Route 50. Carson City could now advertise itself as one of America's largest state capitals with its 146 square miles (380 km) of city limits.
In 1991, the city adopted a downtown master plan, specifying no building within 500 feet (150 metres) of the capitol would surpass it in height. This plan effectively prohibited future high-rise development in the center of downtown. The Ormsby House is the tallest building in downtown Carson City, at a height of 117 feet (36 m). The structure was completed in 1972.
Most of the city proper resides in the Eagle Valley. The Carson River flows from Douglas County through the southwestern edge of both the valley and Carson City. Since the consolidation, the city limits today include several small populated areas outside of this valley. Today the city limits include several peaks in the Sierra Nevada, small portions of both the Virginia Range and the Pine Nut Mountains and portions of Marlette Lake and Lake Tahoe. The highest elevation in city limits is Snow Valley Peak at an elevation of 9,214 feet (2,808 m). Carson City is one of two state capitals that border another state, the other being Trenton, New Jersey.
Carson City features a cold semi-arid climate (Koppen: BSk) with cold winters and hot summers. The city is in a high desert river valley approximately 4,802 feet (1,464 m) above sea level. There are four fairly distinct seasons. Winters see typically light to moderate snowfall, with an average of 14.0 inches (36 cm). Most precipitation occurs in winter and spring, with summer and fall being fairly dry, drier than neighboring California. There are 39.5 days of 90 °F (32 °C)+ highs annually, with 100 °F (38 °C)+ temperatures occurring 1.2 days per year.
The average temperature in Carson City increased by 4.1 °F (2.3 °C) between 1984 and 2014, a greater change than in any other city in the United States.
Carson City is the smallest of the United States' 366 metropolitan statistical areas.
As of the 2010 census, there were 55,274 people, 20,171 households, and 13,252 families residing in the city. The population density was 366 people per square mile (141 people/km). There were 21,283 housing units at an average density of 148 per square mile (57/km). The racial makeup of the city was 81.1% White, 1.9% Black or African American, 2.4% Native American, 2.1% Asian, 0.2% Pacific Islander, 9.4% from other races, and 2.9% from two or more races. 21% of the population were Hispanic or Latino of any race.
As of the 2000 census, there were 20,171 households, out of which 29.8% had children under the age of 18 living with them, 50.0% were married couples living together, 11.0% had a female householder with no husband present, and 34.3% were non-families. 27.8% of all households were made up of individuals, and 11.00% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.97. The city's age distribution was: 23.4% under the age of 18, 7.9% from 18 to 24, 28.9% from 25 to 44, 24.9% from 45 to 64, and 14.9% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 106.9 males. For every 100 females age 18 and over, there were 108.2 males.
Data from the 2000 census indicates the median income for a household in the city was $41,809, and the median income for a family was $49,570. Males had a median income of $35,296 versus $27,418 for females. The per capita income for the city was $20,943. 10.0% of the population and 6.9% of families were below the poverty line. Out of the total population, 13.7% of those under the age of 18 and 5.8% of those 65 and older were living below the poverty line.
As of 2010, 82.3% (42,697) of Carson City residents age 5 and older spoke English at home as a first language, while 14.1% (7,325) spoke Spanish, 0.6% (318) French, and numerous Indo-Aryan languages were spoken as a main language by 0.5% (261) of the population over the age of five. In total, 17.7% (9,174) of Carson City's population age 5 and older spoke a first language other than English.
Ormsby County consolidated with Carson City in 1969, and the county simultaneously dissolved. The city is now governed by a five-member board of supervisors, consisting of a mayor and four supervisors. All members are elected at-large, but each of the four supervisors must reside in respective wards, numbered 1 through 4. The mayor and supervisors serve four year terms. Elections are staggered so the mayor and the supervisors from Wards 2 and Ward 4 are elected in presidential election years, and the supervisors from Wards 1 and 3 are elected in the even-numbered years in between (i.e., the same year as gubernatorial elections).
The city is generally considered a Republican stronghold, often voting for Republicans by wide margins. In 2004, George W. Bush defeated John Kerry 57–40%. In 2008, however, Barack Obama became the first Democrat since 1964 to win Ormsby County/Carson City, defeating John McCain 49–48%, by 204 votes, a margin of under 1%.
Carson City, being the state capital, has seen many political protests and demonstrations.
In an attempt to either make a proposed spent nuclear fuel storage facility at Yucca Mountain prohibitively expensive (by raising property tax rates to the maximum allowed) or to allow the state to collect the potential federal payments of property taxes on the facility, the state government in 1987 carved Yucca Mountain out of Nye County and created a new county with no residents out of the area surrounding Yucca called Bullfrog County. Carson City became the county seat of Bullfrog County, even though it is not in Bullfrog County and is more than 100 miles (160 km) from Yucca Mountain. A state judge found the process unconstitutional in 1989, and Bullfrog County's territory was retroceded to Nye County.
Carson City has never hosted any professional team sports. However, a variety of sports are offered at parks and recreation. Many neighborhood parks offer a wide variety of features including picnic tables, beaches, restrooms, fishing, softball, basketball hoops, ponds, tennis, and volleyball. The largest park is Mills Park, which has a total land area of 51 acres (0.21 km) and includes the 2 ft (610 mm) narrow-gauge Carson & Mills Park Railroad. While there are no ski slopes within Carson City, the city is near the Heavenly Mountain Resort, Diamond Peak and Mount Rose Ski Tahoe skiing areas.
Carson City has served as one of the state's centers for politics and business. Every state governor since Denver S. Dickerson has resided in the Governor's Mansion in Carson City. The following personalities took up residence in Carson City at some point in their lives.
The following is a list of notable employers in Carson City from the fourth quarter of 2012:
1,000–1,499 employees
500–999 employees
200–499 employees
100–199 employees
There are four highways in the city: Nevada State Route 28, U.S. Route 395, U.S. Route 50, and Interstate 580, its only freeway. Phase 1 of the Carson City Freeway Project from US 395, just north of the city, to US 50 was completed in February 2006, and Phase 2A, extending from Rt. 50 to Fairview Drive, was officially opened on September 24, 2009. Phase 2B, Fairview Drive to Rt. 50, was completed in August 2017. Prior to 2012, Carson City was one of only five state capitals not directly served by an interstate highway; the city lost this distinction when I-580 was extended into the city limits.
Carson City's first modern bus system, Jump Around Carson, or JAC, opened to the public in October 2005. JAC uses a smaller urban bus ideal for Carson City. Tahoe Transportation District connects Gardnerville with Carson City.
However, there is virtually no ground public transportation to other destinations. Passenger trains have not served Carson City since 1950, when the Virginia and Truckee Railroad was shut down. Greyhound Lines stopped their bus services to the town in 2006 and Amtrak discontinued their connecting thruway bus to Sacramento, California, in 2008. There is now only a limited Monday – Friday RTC bus service, to Reno which is still served by both Greyhound and Amtrak, as well as Eastern Sierra Transit Authority service from Lone Pine to Reno.
Carson City is also served by the Carson Airport, which is a regional airport in the northern part of the city. Reno–Tahoe International Airport, which is 28 miles (45 km) away, handles domestic commercial flights.
The Carson City School District, the sole public school district of the city, operates ten schools there. The six elementary schools are Bordewich-Bray Elementary School, Empire Elementary School, Fremont Elementary School, Fritsch Elementary School, Mark Twain Elementary School, and Al Seeliger Elementary School. The two middle schools are Carson Middle School and Eagle Valley Middle School. Carson High School and the alternative Pioneer High School serve high school students. Carson High is on Saliman Road.
The district sponsors Carson Montessori School, a public charter school serving grades K-6. Students residing in any Nevada county may enroll. Carson Montessori School is the only school in district operating with a balanced budget. In 2019 Carson Montessori School received the Governor's STEM Schools Designation, an official recognition given to 25 schools statewide which causes a short ceremony attended by the governor during which receiving schools are assigned a 10-foot banner.
Western Nevada College (WNC) is a regionally accredited, two-year and four-year institution which is part of the Nevada System of Higher Education. The college offers many programs including education, arts and science.
Carson City has a public library, the Carson City Library. | [
{
"paragraph_id": 0,
"text": "Carson City is an independent city and the capital of the U.S. state of Nevada. As of the 2020 census, the population was 58,639, making it the 6th most populous city in the state. The majority of the city's population lives in Eagle Valley, on the eastern edge of the Carson Range, a branch of the Sierra Nevada, about 30 miles (50 km) south of Reno. The city is named after the mountain man Kit Carson. The town began as a stopover for California-bound immigrants, but developed into a city with the Comstock Lode, a silver strike in the mountains to the northeast. The city has served as Nevada's capital since statehood in 1864; for much of its history it was a hub for the Virginia and Truckee Railroad, although the tracks were removed in 1950.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Before 1969, Carson City was the county seat of Ormsby County. That year the state legislature abolished the county and included its territory into a revised city charter for a Consolidated Municipality of Carson City. With the consolidation, the city limits extend west across the Sierra Nevada to the California state line in the middle of Lake Tahoe. Like other independent cities in the United States, it is treated as a county-equivalent for census purposes.",
"title": ""
},
{
"paragraph_id": 2,
"text": "The Washoe people have inhabited the valley and surrounding areas for about 6,000 years.",
"title": "History"
},
{
"paragraph_id": 3,
"text": "The first European Americans to arrive in what is now known as Eagle Valley were John C. Frémont and his exploration party in January 1843. Fremont named the river flowing through the valley Carson River in honor of Kit Carson, the mountain man and scout he had hired for his expedition. Later, settlers named the area Washoe, in reference to the indigenous people.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "By 1851, the Eagle Station ranch along the Carson River was a trading post and stopover for travelers on the California Trail's Carson Branch, which ran through Eagle Valley. The valley and trading post received their name from a bald eagle that was hunted and killed by one of the early settlers and was featured on a wall inside the post.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "As the area was part of the Utah Territory, it was governed from Salt Lake City, where the territorial government was headquartered. Early settlers bristled at the control by Mormon-influenced officials and desired the creation of the Nevada territory. A vigilante group of influential settlers, headed by Abraham Curry, sought a site for a capital city for the envisioned territory. In 1858, Abraham Curry bought Eagle Station and the settlement was thereafter renamed Carson City. Curry and several other partners had Eagle Valley surveyed for development. Curry decided Carson City would someday serve as the capital city and left a 10-acre (40,000 m) plot in the center of town for a capitol building.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "After gold and silver were discovered in 1859 on nearby Comstock Lode, Carson City's population began to grow. Curry built the Warm Springs Hotel a mile to the east of the city center. When territorial governor James W. Nye traveled to Nevada, he chose Carson City as the territorial capital, influenced by Carson City lawyer William Stewart, who escorted him from San Francisco to Nevada. As such, Carson City bested Virginia City and American Flat. Curry loaned the Warm Springs Hotel to the territorial Legislature as a meeting hall. The Legislature named Carson City to be the seat of Ormsby County and selected the hotel as the territorial prison, with Curry serving as its first warden. Today, the property is still part of the state prison.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "When Nevada became a state in 1864 during the American Civil War, Carson City was confirmed as Nevada's permanent capital. Carson City's development was no longer dependent on the mining industry and instead became a thriving commercial center. The Virginia and Truckee Railroad was built between Virginia City and Carson City. A log flume was also built from the Sierra Nevada into Carson City. The current capitol building was constructed from 1870 to 1871. The United States Mint operated the Carson City Mint between the years 1870 and 1893, which struck gold and silver coins. People came from China during that time, many to work on the railroad. Some of them owned businesses and taught school. By 1880, almost a thousand Chinese people, \"one for every five Caucasians\", lived in Carson City.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "Carson City's population and transportation traffic decreased when the Central Pacific Railroad built a line through Donner Pass, too far to the north to benefit Carson City. The city was slightly revitalized with the mining booms in Tonopah and Goldfield. The US federal building (now renamed the Paul Laxalt Building) was completed in 1890 as was the Stewart Indian School. Even these developments could not prevent the city's population from dropping to just over 1,500 people by 1930. Carson City resigned itself to small city status, advertising itself as \"America's smallest capital\". The city slowly grew after World War II; by 1960, it had reached its 1880 boom-time population.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "As early as the late 1940s, discussions began about merging Ormsby County and Carson City. By this time, the county was little more than Carson City and a few hamlets to the west. However, the effort did not pay off until 1966, when a statewide referendum approved the merger. The required constitutional amendment was passed in 1968. On April 1, 1969, Ormsby County and Carson City officially merged as the Consolidated Municipality of Carson City. With this consolidation, Carson City absorbed former town sites such as Empire City, which had grown up in the 1860s as a milling center along the Carson River and current U.S. Route 50. Carson City could now advertise itself as one of America's largest state capitals with its 146 square miles (380 km) of city limits.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In 1991, the city adopted a downtown master plan, specifying no building within 500 feet (150 metres) of the capitol would surpass it in height. This plan effectively prohibited future high-rise development in the center of downtown. The Ormsby House is the tallest building in downtown Carson City, at a height of 117 feet (36 m). The structure was completed in 1972.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "Most of the city proper resides in the Eagle Valley. The Carson River flows from Douglas County through the southwestern edge of both the valley and Carson City. Since the consolidation, the city limits today include several small populated areas outside of this valley. Today the city limits include several peaks in the Sierra Nevada, small portions of both the Virginia Range and the Pine Nut Mountains and portions of Marlette Lake and Lake Tahoe. The highest elevation in city limits is Snow Valley Peak at an elevation of 9,214 feet (2,808 m). Carson City is one of two state capitals that border another state, the other being Trenton, New Jersey.",
"title": "Geography"
},
{
"paragraph_id": 12,
"text": "Carson City features a cold semi-arid climate (Koppen: BSk) with cold winters and hot summers. The city is in a high desert river valley approximately 4,802 feet (1,464 m) above sea level. There are four fairly distinct seasons. Winters see typically light to moderate snowfall, with an average of 14.0 inches (36 cm). Most precipitation occurs in winter and spring, with summer and fall being fairly dry, drier than neighboring California. There are 39.5 days of 90 °F (32 °C)+ highs annually, with 100 °F (38 °C)+ temperatures occurring 1.2 days per year.",
"title": "Geography"
},
{
"paragraph_id": 13,
"text": "The average temperature in Carson City increased by 4.1 °F (2.3 °C) between 1984 and 2014, a greater change than in any other city in the United States.",
"title": "Geography"
},
{
"paragraph_id": 14,
"text": "Carson City is the smallest of the United States' 366 metropolitan statistical areas.",
"title": "Demographics"
},
{
"paragraph_id": 15,
"text": "As of the 2010 census, there were 55,274 people, 20,171 households, and 13,252 families residing in the city. The population density was 366 people per square mile (141 people/km). There were 21,283 housing units at an average density of 148 per square mile (57/km). The racial makeup of the city was 81.1% White, 1.9% Black or African American, 2.4% Native American, 2.1% Asian, 0.2% Pacific Islander, 9.4% from other races, and 2.9% from two or more races. 21% of the population were Hispanic or Latino of any race.",
"title": "Demographics"
},
{
"paragraph_id": 16,
"text": "As of the 2000 census, there were 20,171 households, out of which 29.8% had children under the age of 18 living with them, 50.0% were married couples living together, 11.0% had a female householder with no husband present, and 34.3% were non-families. 27.8% of all households were made up of individuals, and 11.00% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.97. The city's age distribution was: 23.4% under the age of 18, 7.9% from 18 to 24, 28.9% from 25 to 44, 24.9% from 45 to 64, and 14.9% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 106.9 males. For every 100 females age 18 and over, there were 108.2 males.",
"title": "Demographics"
},
{
"paragraph_id": 17,
"text": "Data from the 2000 census indicates the median income for a household in the city was $41,809, and the median income for a family was $49,570. Males had a median income of $35,296 versus $27,418 for females. The per capita income for the city was $20,943. 10.0% of the population and 6.9% of families were below the poverty line. Out of the total population, 13.7% of those under the age of 18 and 5.8% of those 65 and older were living below the poverty line.",
"title": "Demographics"
},
{
"paragraph_id": 18,
"text": "As of 2010, 82.3% (42,697) of Carson City residents age 5 and older spoke English at home as a first language, while 14.1% (7,325) spoke Spanish, 0.6% (318) French, and numerous Indo-Aryan languages were spoken as a main language by 0.5% (261) of the population over the age of five. In total, 17.7% (9,174) of Carson City's population age 5 and older spoke a first language other than English.",
"title": "Demographics"
},
{
"paragraph_id": 19,
"text": "Ormsby County consolidated with Carson City in 1969, and the county simultaneously dissolved. The city is now governed by a five-member board of supervisors, consisting of a mayor and four supervisors. All members are elected at-large, but each of the four supervisors must reside in respective wards, numbered 1 through 4. The mayor and supervisors serve four year terms. Elections are staggered so the mayor and the supervisors from Wards 2 and Ward 4 are elected in presidential election years, and the supervisors from Wards 1 and 3 are elected in the even-numbered years in between (i.e., the same year as gubernatorial elections).",
"title": "Government and politics"
},
{
"paragraph_id": 20,
"text": "The city is generally considered a Republican stronghold, often voting for Republicans by wide margins. In 2004, George W. Bush defeated John Kerry 57–40%. In 2008, however, Barack Obama became the first Democrat since 1964 to win Ormsby County/Carson City, defeating John McCain 49–48%, by 204 votes, a margin of under 1%.",
"title": "Government and politics"
},
{
"paragraph_id": 21,
"text": "Carson City, being the state capital, has seen many political protests and demonstrations.",
"title": "Government and politics"
},
{
"paragraph_id": 22,
"text": "In an attempt to either make a proposed spent nuclear fuel storage facility at Yucca Mountain prohibitively expensive (by raising property tax rates to the maximum allowed) or to allow the state to collect the potential federal payments of property taxes on the facility, the state government in 1987 carved Yucca Mountain out of Nye County and created a new county with no residents out of the area surrounding Yucca called Bullfrog County. Carson City became the county seat of Bullfrog County, even though it is not in Bullfrog County and is more than 100 miles (160 km) from Yucca Mountain. A state judge found the process unconstitutional in 1989, and Bullfrog County's territory was retroceded to Nye County.",
"title": "Government and politics"
},
{
"paragraph_id": 23,
"text": "Carson City has never hosted any professional team sports. However, a variety of sports are offered at parks and recreation. Many neighborhood parks offer a wide variety of features including picnic tables, beaches, restrooms, fishing, softball, basketball hoops, ponds, tennis, and volleyball. The largest park is Mills Park, which has a total land area of 51 acres (0.21 km) and includes the 2 ft (610 mm) narrow-gauge Carson & Mills Park Railroad. While there are no ski slopes within Carson City, the city is near the Heavenly Mountain Resort, Diamond Peak and Mount Rose Ski Tahoe skiing areas.",
"title": "Culture"
},
{
"paragraph_id": 24,
"text": "Carson City has served as one of the state's centers for politics and business. Every state governor since Denver S. Dickerson has resided in the Governor's Mansion in Carson City. The following personalities took up residence in Carson City at some point in their lives.",
"title": "Notable people"
},
{
"paragraph_id": 25,
"text": "The following is a list of notable employers in Carson City from the fourth quarter of 2012:",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 26,
"text": "1,000–1,499 employees",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 27,
"text": "500–999 employees",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 28,
"text": "200–499 employees",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 29,
"text": "100–199 employees",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 30,
"text": "There are four highways in the city: Nevada State Route 28, U.S. Route 395, U.S. Route 50, and Interstate 580, its only freeway. Phase 1 of the Carson City Freeway Project from US 395, just north of the city, to US 50 was completed in February 2006, and Phase 2A, extending from Rt. 50 to Fairview Drive, was officially opened on September 24, 2009. Phase 2B, Fairview Drive to Rt. 50, was completed in August 2017. Prior to 2012, Carson City was one of only five state capitals not directly served by an interstate highway; the city lost this distinction when I-580 was extended into the city limits.",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 31,
"text": "Carson City's first modern bus system, Jump Around Carson, or JAC, opened to the public in October 2005. JAC uses a smaller urban bus ideal for Carson City. Tahoe Transportation District connects Gardnerville with Carson City.",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 32,
"text": "However, there is virtually no ground public transportation to other destinations. Passenger trains have not served Carson City since 1950, when the Virginia and Truckee Railroad was shut down. Greyhound Lines stopped their bus services to the town in 2006 and Amtrak discontinued their connecting thruway bus to Sacramento, California, in 2008. There is now only a limited Monday – Friday RTC bus service, to Reno which is still served by both Greyhound and Amtrak, as well as Eastern Sierra Transit Authority service from Lone Pine to Reno.",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 33,
"text": "Carson City is also served by the Carson Airport, which is a regional airport in the northern part of the city. Reno–Tahoe International Airport, which is 28 miles (45 km) away, handles domestic commercial flights.",
"title": "Economy and infrastructure"
},
{
"paragraph_id": 34,
"text": "The Carson City School District, the sole public school district of the city, operates ten schools there. The six elementary schools are Bordewich-Bray Elementary School, Empire Elementary School, Fremont Elementary School, Fritsch Elementary School, Mark Twain Elementary School, and Al Seeliger Elementary School. The two middle schools are Carson Middle School and Eagle Valley Middle School. Carson High School and the alternative Pioneer High School serve high school students. Carson High is on Saliman Road.",
"title": "Education"
},
{
"paragraph_id": 35,
"text": "The district sponsors Carson Montessori School, a public charter school serving grades K-6. Students residing in any Nevada county may enroll. Carson Montessori School is the only school in district operating with a balanced budget. In 2019 Carson Montessori School received the Governor's STEM Schools Designation, an official recognition given to 25 schools statewide which causes a short ceremony attended by the governor during which receiving schools are assigned a 10-foot banner.",
"title": "Education"
},
{
"paragraph_id": 36,
"text": "Western Nevada College (WNC) is a regionally accredited, two-year and four-year institution which is part of the Nevada System of Higher Education. The college offers many programs including education, arts and science.",
"title": "Education"
},
{
"paragraph_id": 37,
"text": "Carson City has a public library, the Carson City Library.",
"title": "Education"
}
] | Carson City is an independent city and the capital of the U.S. state of Nevada. As of the 2020 census, the population was 58,639, making it the 6th most populous city in the state. The majority of the city's population lives in Eagle Valley, on the eastern edge of the Carson Range, a branch of the Sierra Nevada, about 30 miles (50 km) south of Reno. The city is named after the mountain man Kit Carson. The town began as a stopover for California-bound immigrants, but developed into a city with the Comstock Lode, a silver strike in the mountains to the northeast. The city has served as Nevada's capital since statehood in 1864; for much of its history it was a hub for the Virginia and Truckee Railroad, although the tracks were removed in 1950. Before 1969, Carson City was the county seat of Ormsby County. That year the state legislature abolished the county and included its territory into a revised city charter for a Consolidated Municipality of Carson City. With the consolidation, the city limits extend west across the Sierra Nevada to the California state line in the middle of Lake Tahoe. Like other independent cities in the United States, it is treated as a county-equivalent for census purposes. | 2001-12-12T06:36:28Z | 2023-12-28T20:45:12Z | [
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7,445 | Classification of finite simple groups | In mathematics, the classification of finite simple groups is a result of group theory stating that every finite simple group is either cyclic, or alternating, or belongs to a broad infinite class called the groups of Lie type, or else it is one of twenty-six or twenty-seven exceptions, called sporadic. The proof consists of tens of thousands of pages in several hundred journal articles written by about 100 authors, published mostly between 1955 and 2004.
Simple groups can be seen as the basic building blocks of all finite groups, reminiscent of the way the prime numbers are the basic building blocks of the natural numbers. The Jordan–Hölder theorem is a more precise way of stating this fact about finite groups. However, a significant difference from integer factorization is that such "building blocks" do not necessarily determine a unique group, since there might be many non-isomorphic groups with the same composition series or, put in another way, the extension problem does not have a unique solution.
Gorenstein (d.1992), Lyons, and Solomon are gradually publishing a simplified and revised version of the proof.
Theorem — Every finite simple group is isomorphic to one of the following groups:
The classification theorem has applications in many branches of mathematics, as questions about the structure of finite groups (and their action on other mathematical objects) can sometimes be reduced to questions about finite simple groups. Thanks to the classification theorem, such questions can sometimes be answered by checking each family of simple groups and each sporadic group.
Daniel Gorenstein announced in 1983 that the finite simple groups had all been classified, but this was premature as he had been misinformed about the proof of the classification of quasithin groups. The completed proof of the classification was announced by Aschbacher (2004) after Aschbacher and Smith published a 1221-page proof for the missing quasithin case.
Gorenstein (1982, 1983) wrote two volumes outlining the low rank and odd characteristic part of the proof, and Michael Aschbacher, Richard Lyons, and Stephen D. Smith et al. (2011) wrote a 3rd volume covering the remaining characteristic 2 case. The proof can be broken up into several major pieces as follows:
The simple groups of low 2-rank are mostly groups of Lie type of small rank over fields of odd characteristic, together with five alternating and seven characteristic 2 type and nine sporadic groups.
The simple groups of small 2-rank include:
The classification of groups of small 2-rank, especially ranks at most 2, makes heavy use of ordinary and modular character theory, which is almost never directly used elsewhere in the classification.
All groups not of small 2 rank can be split into two major classes: groups of component type and groups of characteristic 2 type. This is because if a group has sectional 2-rank at least 5 then MacWilliams showed that its Sylow 2-subgroups are connected, and the balance theorem implies that any simple group with connected Sylow 2-subgroups is either of component type or characteristic 2 type. (For groups of low 2-rank the proof of this breaks down, because theorems such as the signalizer functor theorem only work for groups with elementary abelian subgroups of rank at least 3.)
A group is said to be of component type if for some centralizer C of an involution, C/O(C) has a component (where O(C) is the core of C, the maximal normal subgroup of odd order). These are more or less the groups of Lie type of odd characteristic of large rank, and alternating groups, together with some sporadic groups. A major step in this case is to eliminate the obstruction of the core of an involution. This is accomplished by the B-theorem, which states that every component of C/O(C) is the image of a component of C.
The idea is that these groups have a centralizer of an involution with a component that is a smaller quasisimple group, which can be assumed to be already known by induction. So to classify these groups one takes every central extension of every known finite simple group, and finds all simple groups with a centralizer of involution with this as a component. This gives a rather large number of different cases to check: there are not only 26 sporadic groups and 16 families of groups of Lie type and the alternating groups, but also many of the groups of small rank or over small fields behave differently from the general case and have to be treated separately, and the groups of Lie type of even and odd characteristic are also quite different.
A group is of characteristic 2 type if the generalized Fitting subgroup F*(Y) of every 2-local subgroup Y is a 2-group. As the name suggests these are roughly the groups of Lie type over fields of characteristic 2, plus a handful of others that are alternating or sporadic or of odd characteristic. Their classification is divided into the small and large rank cases, where the rank is the largest rank of an odd abelian subgroup normalizing a nontrivial 2-subgroup, which is often (but not always) the same as the rank of a Cartan subalgebra when the group is a group of Lie type in characteristic 2.
The rank 1 groups are the thin groups, classified by Aschbacher, and the rank 2 ones are the notorious quasithin groups, classified by Aschbacher and Smith. These correspond roughly to groups of Lie type of ranks 1 or 2 over fields of characteristic 2.
Groups of rank at least 3 are further subdivided into 3 classes by the trichotomy theorem, proved by Aschbacher for rank 3 and by Gorenstein and Lyons for rank at least 4. The three classes are groups of GF(2) type (classified mainly by Timmesfeld), groups of "standard type" for some odd prime (classified by the Gilman–Griess theorem and work by several others), and groups of uniqueness type, where a result of Aschbacher implies that there are no simple groups. The general higher rank case consists mostly of the groups of Lie type over fields of characteristic 2 of rank at least 3 or 4.
The main part of the classification produces a characterization of each simple group. It is then necessary to check that there exists a simple group for each characterization and that it is unique. This gives a large number of separate problems; for example, the original proofs of existence and uniqueness of the monster group totaled about 200 pages, and the identification of the Ree groups by Thompson and Bombieri was one of the hardest parts of the classification. Many of the existence proofs and some of the uniqueness proofs for the sporadic groups originally used computer calculations, most of which have since been replaced by shorter hand proofs.
In 1972 Gorenstein (1979, Appendix) announced a program for completing the classification of finite simple groups, consisting of the following 16 steps:
Many of the items in the table below are taken from Solomon (2001). The date given is usually the publication date of the complete proof of a result, which is sometimes several years later than the proof or first announcement of the result, so some of the items appear in the "wrong" order.
The proof of the theorem, as it stood around 1985 or so, can be called first generation. Because of the extreme length of the first generation proof, much effort has been devoted to finding a simpler proof, called a second-generation classification proof. This effort, called "revisionism", was originally led by Daniel Gorenstein.
As of 2023, ten volumes of the second generation proof have been published (Gorenstein, Lyons & Solomon 1994, 1996, 1998, 1999, 2002, 2005, 2018a, 2018b; & Capdeboscq, 2021, 2023). In 2012 Solomon estimated that the project would need another 5 volumes, but said that progress on them was slow. It is estimated that the new proof will eventually fill approximately 5,000 pages. (This length stems in part from the second generation proof being written in a more relaxed style.) However, with the publication of volume 9 of the GLS series, and including the Aschbacher–Smith contribution, this estimate was already reached, with several more volumes still in preparation (the rest of what was originally intended for volume 9, plus projected volumes 10 and 11). Aschbacher and Smith wrote their two volumes devoted to the quasithin case in such a way that those volumes can be part of the second generation proof.
Gorenstein and his collaborators have given several reasons why a simpler proof is possible.
Aschbacher (2004) has called the work on the classification problem by Ulrich Meierfrankenfeld, Bernd Stellmacher, Gernot Stroth, and a few others, a third generation program. One goal of this is to treat all groups in characteristic 2 uniformly using the amalgam method.
Gorenstein has discussed some of the reasons why there might not be a short proof of the classification similar to the classification of compact Lie groups.
This section lists some results that have been proved using the classification of finite simple groups. | [
{
"paragraph_id": 0,
"text": "In mathematics, the classification of finite simple groups is a result of group theory stating that every finite simple group is either cyclic, or alternating, or belongs to a broad infinite class called the groups of Lie type, or else it is one of twenty-six or twenty-seven exceptions, called sporadic. The proof consists of tens of thousands of pages in several hundred journal articles written by about 100 authors, published mostly between 1955 and 2004.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Simple groups can be seen as the basic building blocks of all finite groups, reminiscent of the way the prime numbers are the basic building blocks of the natural numbers. The Jordan–Hölder theorem is a more precise way of stating this fact about finite groups. However, a significant difference from integer factorization is that such \"building blocks\" do not necessarily determine a unique group, since there might be many non-isomorphic groups with the same composition series or, put in another way, the extension problem does not have a unique solution.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Gorenstein (d.1992), Lyons, and Solomon are gradually publishing a simplified and revised version of the proof.",
"title": ""
},
{
"paragraph_id": 3,
"text": "Theorem — Every finite simple group is isomorphic to one of the following groups:",
"title": "Statement of the classification theorem"
},
{
"paragraph_id": 4,
"text": "The classification theorem has applications in many branches of mathematics, as questions about the structure of finite groups (and their action on other mathematical objects) can sometimes be reduced to questions about finite simple groups. Thanks to the classification theorem, such questions can sometimes be answered by checking each family of simple groups and each sporadic group.",
"title": "Statement of the classification theorem"
},
{
"paragraph_id": 5,
"text": "Daniel Gorenstein announced in 1983 that the finite simple groups had all been classified, but this was premature as he had been misinformed about the proof of the classification of quasithin groups. The completed proof of the classification was announced by Aschbacher (2004) after Aschbacher and Smith published a 1221-page proof for the missing quasithin case.",
"title": "Statement of the classification theorem"
},
{
"paragraph_id": 6,
"text": "Gorenstein (1982, 1983) wrote two volumes outlining the low rank and odd characteristic part of the proof, and Michael Aschbacher, Richard Lyons, and Stephen D. Smith et al. (2011) wrote a 3rd volume covering the remaining characteristic 2 case. The proof can be broken up into several major pieces as follows:",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 7,
"text": "The simple groups of low 2-rank are mostly groups of Lie type of small rank over fields of odd characteristic, together with five alternating and seven characteristic 2 type and nine sporadic groups.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 8,
"text": "The simple groups of small 2-rank include:",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 9,
"text": "The classification of groups of small 2-rank, especially ranks at most 2, makes heavy use of ordinary and modular character theory, which is almost never directly used elsewhere in the classification.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 10,
"text": "All groups not of small 2 rank can be split into two major classes: groups of component type and groups of characteristic 2 type. This is because if a group has sectional 2-rank at least 5 then MacWilliams showed that its Sylow 2-subgroups are connected, and the balance theorem implies that any simple group with connected Sylow 2-subgroups is either of component type or characteristic 2 type. (For groups of low 2-rank the proof of this breaks down, because theorems such as the signalizer functor theorem only work for groups with elementary abelian subgroups of rank at least 3.)",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 11,
"text": "A group is said to be of component type if for some centralizer C of an involution, C/O(C) has a component (where O(C) is the core of C, the maximal normal subgroup of odd order). These are more or less the groups of Lie type of odd characteristic of large rank, and alternating groups, together with some sporadic groups. A major step in this case is to eliminate the obstruction of the core of an involution. This is accomplished by the B-theorem, which states that every component of C/O(C) is the image of a component of C.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 12,
"text": "The idea is that these groups have a centralizer of an involution with a component that is a smaller quasisimple group, which can be assumed to be already known by induction. So to classify these groups one takes every central extension of every known finite simple group, and finds all simple groups with a centralizer of involution with this as a component. This gives a rather large number of different cases to check: there are not only 26 sporadic groups and 16 families of groups of Lie type and the alternating groups, but also many of the groups of small rank or over small fields behave differently from the general case and have to be treated separately, and the groups of Lie type of even and odd characteristic are also quite different.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 13,
"text": "A group is of characteristic 2 type if the generalized Fitting subgroup F*(Y) of every 2-local subgroup Y is a 2-group. As the name suggests these are roughly the groups of Lie type over fields of characteristic 2, plus a handful of others that are alternating or sporadic or of odd characteristic. Their classification is divided into the small and large rank cases, where the rank is the largest rank of an odd abelian subgroup normalizing a nontrivial 2-subgroup, which is often (but not always) the same as the rank of a Cartan subalgebra when the group is a group of Lie type in characteristic 2.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 14,
"text": "The rank 1 groups are the thin groups, classified by Aschbacher, and the rank 2 ones are the notorious quasithin groups, classified by Aschbacher and Smith. These correspond roughly to groups of Lie type of ranks 1 or 2 over fields of characteristic 2.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 15,
"text": "Groups of rank at least 3 are further subdivided into 3 classes by the trichotomy theorem, proved by Aschbacher for rank 3 and by Gorenstein and Lyons for rank at least 4. The three classes are groups of GF(2) type (classified mainly by Timmesfeld), groups of \"standard type\" for some odd prime (classified by the Gilman–Griess theorem and work by several others), and groups of uniqueness type, where a result of Aschbacher implies that there are no simple groups. The general higher rank case consists mostly of the groups of Lie type over fields of characteristic 2 of rank at least 3 or 4.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 16,
"text": "The main part of the classification produces a characterization of each simple group. It is then necessary to check that there exists a simple group for each characterization and that it is unique. This gives a large number of separate problems; for example, the original proofs of existence and uniqueness of the monster group totaled about 200 pages, and the identification of the Ree groups by Thompson and Bombieri was one of the hardest parts of the classification. Many of the existence proofs and some of the uniqueness proofs for the sporadic groups originally used computer calculations, most of which have since been replaced by shorter hand proofs.",
"title": "Overview of the proof of the classification theorem"
},
{
"paragraph_id": 17,
"text": "In 1972 Gorenstein (1979, Appendix) announced a program for completing the classification of finite simple groups, consisting of the following 16 steps:",
"title": "History of the proof"
},
{
"paragraph_id": 18,
"text": "Many of the items in the table below are taken from Solomon (2001). The date given is usually the publication date of the complete proof of a result, which is sometimes several years later than the proof or first announcement of the result, so some of the items appear in the \"wrong\" order.",
"title": "History of the proof"
},
{
"paragraph_id": 19,
"text": "The proof of the theorem, as it stood around 1985 or so, can be called first generation. Because of the extreme length of the first generation proof, much effort has been devoted to finding a simpler proof, called a second-generation classification proof. This effort, called \"revisionism\", was originally led by Daniel Gorenstein.",
"title": "Second-generation classification"
},
{
"paragraph_id": 20,
"text": "As of 2023, ten volumes of the second generation proof have been published (Gorenstein, Lyons & Solomon 1994, 1996, 1998, 1999, 2002, 2005, 2018a, 2018b; & Capdeboscq, 2021, 2023). In 2012 Solomon estimated that the project would need another 5 volumes, but said that progress on them was slow. It is estimated that the new proof will eventually fill approximately 5,000 pages. (This length stems in part from the second generation proof being written in a more relaxed style.) However, with the publication of volume 9 of the GLS series, and including the Aschbacher–Smith contribution, this estimate was already reached, with several more volumes still in preparation (the rest of what was originally intended for volume 9, plus projected volumes 10 and 11). Aschbacher and Smith wrote their two volumes devoted to the quasithin case in such a way that those volumes can be part of the second generation proof.",
"title": "Second-generation classification"
},
{
"paragraph_id": 21,
"text": "Gorenstein and his collaborators have given several reasons why a simpler proof is possible.",
"title": "Second-generation classification"
},
{
"paragraph_id": 22,
"text": "Aschbacher (2004) has called the work on the classification problem by Ulrich Meierfrankenfeld, Bernd Stellmacher, Gernot Stroth, and a few others, a third generation program. One goal of this is to treat all groups in characteristic 2 uniformly using the amalgam method.",
"title": "Second-generation classification"
},
{
"paragraph_id": 23,
"text": "Gorenstein has discussed some of the reasons why there might not be a short proof of the classification similar to the classification of compact Lie groups.",
"title": "Second-generation classification"
},
{
"paragraph_id": 24,
"text": "This section lists some results that have been proved using the classification of finite simple groups.",
"title": "Consequences of the classification"
}
] | In mathematics, the classification of finite simple groups is a result of group theory stating that every finite simple group is either cyclic, or alternating, or belongs to a broad infinite class called the groups of Lie type, or else it is one of twenty-six or twenty-seven exceptions, called sporadic. The proof consists of tens of thousands of pages in several hundred journal articles written by about 100 authors, published mostly between 1955 and 2004. Simple groups can be seen as the basic building blocks of all finite groups, reminiscent of the way the prime numbers are the basic building blocks of the natural numbers. The Jordan–Hölder theorem is a more precise way of stating this fact about finite groups. However, a significant difference from integer factorization is that such "building blocks" do not necessarily determine a unique group, since there might be many non-isomorphic groups with the same composition series or, put in another way, the extension problem does not have a unique solution. Gorenstein (d.1992), Lyons, and Solomon are gradually publishing a simplified and revised version of the proof. | 2001-12-12T22:40:39Z | 2023-12-24T06:01:05Z | [
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] | https://en.wikipedia.org/wiki/Classification_of_finite_simple_groups |
7,446 | Chalcolithic | The Chalcolithic (also called the Copper Age and Eneolithic) is an archaeological period characterized by the increasing use of smelted copper. It follows the Neolithic and precedes the Bronze Age. It occurs at different periods in different areas, and is absent in some parts of the world, such as Russia. Stone tools were still predominantly used during this period.
The archaeological site of Belovode, on Rudnik mountain in Serbia, has the world's oldest securely dated evidence of copper smelting at high temperature, from c. 5,000 BC (7,000 BP). The transition from Copper Age to Bronze Age in Europe occurred between the late 5th and the late 3rd millennia BC. In the Ancient Near East the Copper Age covered about the same period, beginning in the late 5th millennium BC and lasting for about a millennium before it gave rise to the Early Bronze Age.
A study in the journal Antiquity from 2013 reported the discovery of a tin bronze foil from the Pločnik archaeological site dated to c. 4,650 BC, as well as 14 other artefacts from Bulgaria and Serbia dated to before 4,000 BC, showed that early tin bronze was more common than previously thought and developed independently in Europe 1,500 years before the first tin bronze alloys in the Near East. In Britain, the Chalcolithic is a short period between about 2,500 and 2,200 BC, characterized by the first appearance of objects of copper and gold, a new ceramic culture and the immigration of Beaker culture people, heralding the end of the local late Neolithic.
The multiple names result from multiple definitions of the period. Originally, the term Bronze Age meant that either copper or bronze was being used as the chief hard substance for the manufacture of tools and weapons. Ancient writers, who provided the essential cultural references for educated people during the 19th century, used the same name for both copper- and bronze-using ages.
The concept of the Copper Age was put forward by Hungarian scientist Ferenc Pulszky in the 1870s, when, on the basis of the significant number of large copper objects unearthed within the Carpathian Basin, he suggested that the previous threefold division of the Prehistoric Age – the Stone, Bronze and Iron Ages – should be further divided with the introduction of the Copper Age.
In 1881, John Evans recognized that use of copper often preceded the use of bronze, and distinguished between a transitional Copper Age and the Bronze Age proper. He did not include the transitional period in the Bronze Age, but described it separately from the customary stone / bronze / iron system, at the Bronze Age's beginning. He did not, however, present it as a fourth age but chose to retain the tripartite system.
In 1884, Gaetano Chierici, perhaps following the lead of Evans, renamed it in Italian as the eneo-litica, or "bronze–stone" transition. The phrase was never intended to mean that the period was the only one in which both bronze and stone were used. The Copper Age features the use of copper, excluding bronze; moreover, stone continued to be used throughout both the Bronze Age and the Iron Age. The part -litica simply names the Stone Age as the point from which the transition began and is not another -lithic age.
Subsequently, British scholars used either Evans's "Copper Age" or the term "Eneolithic" (or Æneolithic), a translation of Chierici's eneo-litica. After several years, a number of complaints appeared in the literature that "Eneolithic" seemed to the untrained eye to be produced from e-neolithic, "outside the Neolithic", clearly not a definitive characterization of the Copper Age. Around 1900, many writers began to substitute Chalcolithic for Eneolithic, to avoid the false segmentation. The term chalcolithic is a combination of two words- Chalco+Lithic, derived from the Greek words "khalkos" meaning "copper", and "líthos" meaning "stone".
But "chalcolithic" could also mislead: For readers unfamiliar with the Italian language, chalcolithic seemed to suggest another -lithic age, paradoxically part of the Stone Age despite the use of copper. Today, Copper Age, Eneolithic, and Chalcolithic are used synonymously to mean Evans's original definition of Copper Age.
The emergence of metallurgy may have occurred first in the Fertile Crescent. The earliest use of lead is documented here from the late Neolithic settlement of Yarim Tepe in Iraq:
The earliest lead (Pb) finds in the ancient Near East are a 6th millennium BC bangle from Yarim Tepe in northern Iraq and a slightly later conical lead piece from Halaf period Arpachiyah, near Mosul. As native lead is extremely rare, such artifacts raise the possibility that lead smelting may have begun even before copper smelting.
Copper smelting is also documented at this site at about the same time period (soon after 6000 BC), although the use of lead seems to precede copper smelting. Early metallurgy is also documented at the nearby site of Tell Maghzaliyah, which seems to be dated even earlier, and completely lacks pottery.
The Timna Valley contains evidence of copper mining in 7000–5000 BC. The process of transition from Neolithic to Chalcolithic in the Middle East is characterized in archaeological stone tool assemblages by a decline in high quality raw material procurement and use. This dramatic shift is seen throughout the region, including the Tehran Plain, Iran. Here, analysis of six archaeological sites determined a marked downward trend in not only material quality, but also in aesthetic variation in the lithic artefacts. Fazeli & Coningham use these results as evidence of the loss of craft specialisation caused by increased use of copper tools.
The Tehran Plain findings illustrate the effects of the introduction of copper working technologies on the in-place systems of lithic craft specialists and raw materials. Networks of exchange and specialized processing and production that had evolved during the Neolithic seem to have collapsed by the Middle Chalcolithic (c. 4500–3500 BC) and been replaced by the use of local materials by a primarily household-based production of stone tools.
Arsenical copper or bronze was clearly produced in eastern Turkey (Malatya Province) at two ancient sites, Norşuntepe and Değirmentepe, around 4200 BC. According to Boscher (2016), hearths or natural draft furnaces, slag, ore, and pigment had been recovered throughout these sites. This was in the context of Ubaid period architectural complexes typical of southern Mesopotamian architecture. Norşuntepe site demonstrates that some form of arsenic alloying was indeed taking place by the 4th millennium BC. Since the slag identified at Norşuntepe contains no arsenic, this means that arsenic in some form was added separately.
A copper axe found at Prokuplje, Serbia contains the oldest securely dated evidence of copper-making, c. 5500 BC (7,500 years ago). The find in June 2010 extends the known record of copper smelting by about 800 years, and suggests that copper smelting may have been invented in separate parts of Asia and Europe at that time rather than spreading from a single source.
Knowledge of the use of copper was far more widespread than the metal itself. The European Battle Axe culture used stone axes modeled on copper axes, even with moulding carved in the stone. Ötzi the Iceman, who was found in the Ötztal Alps in 1991 and whose remains have been dated to about 3300 BC, was found with a Mondsee copper axe.
Examples of Chalcolithic cultures in Europe include Vila Nova de São Pedro and Los Millares on the Iberian Peninsula. Pottery of the Beaker people has been found at both sites, dating to several centuries after copper-working began there. The Beaker culture appears to have spread copper and bronze technologies in Europe, along with Indo-European languages. In Britain, copper was used between the 25th and 22nd centuries BC, but some archaeologists do not recognise a British Chalcolithic because production and use was on a small scale.
Ceramic similarities between the Indus Valley civilisation, southern Turkmenistan, and northern Iran during 4300–3300 BC of the Chalcolithic period suggest considerable mobility and trade.
The term "Chalcolithic" has also been used in the context of the South Asian Stone Age.
In Bhirrana, the earliest Indus civilization site, copper bangles and arrowheads were found. The inhabitants of Mehrgarh in present-day Pakistan fashioned tools with local copper ore between 7000 and 3300 BC.
The Nausharo site was a pottery workshop in province of Balochistan, Pakistan, that dates to 4,500 years ago; 12 blades and blade fragments were excavated there. These blades are 12–18 cm (5–7 in) long, 1.2–2.0 cm (0.5–0.8 in) wide, and relatively thin. Archaeological experiments show that these blades were made with a copper indenter and functioned as a potter's tool to trim and shape unfired pottery. Petrographic analysis indicates local pottery manufacturing, but also reveals the existence of a few exotic black-slipped pottery items from the Indus Valley.
In India, Chalcolithic culture flourished in mainly four farming communities – Ahar or Banas, Kayatha, Malwa, and Jorwe. These communities had some common traits like painted pottery and use of copper, but they had a distinct ceramic design tradition. Banas culture (2000–1600 BC) had ceramics with red, white, and black design. Kayatha culture (2450–1700 BC) had ceramics painted with brown colored design. Malwa culture (1900–1400 BC) had profusely decorated pottery with red or black colored design. Jorwe culture (1500–900 BC) had ceramics with matte surface and black-on-red design.
Pandu Rajar Dhibi (2000–1600 BC) is a Chalcolithic site in the eastern part of the Indian subcontinent. It is located on the south bank of Ajay River in West Bengal. Black ware, painted Koshi ware, pottery, various ornaments made of pearl and copper, various types of tools, pieces of fabric woven from Shimul cotton thread, human and various animal skeletons, burnt clay fragments have been found at the site.
In March 2018, archaeologists had discovered three carts and copper artifacts including weapons dating to 1800 BC in Sanauli village of Uttar Pradesh. The artifacts belongs to Ochre Coloured Pottery culture.
Andean civilizations in South America appear to have independently invented copper smelting.
The term "Chalcolithic" is also applied to American civilizations that already used copper and copper alloys thousands of years before Europeans immigrated. Besides cultures in the Andes and Mesoamerica, the Old Copper Complex mined and fabricated copper as tools, weapons, and personal ornaments in an area centered in the upper Great Lakes region: Present-day Michigan and Wisconsin.
The evidence of smelting or alloying that has been found in North America is subject to some dispute and a common assumption by archaeologists is that objects were cold-worked into shape. Artifacts from some of these sites have been dated to 6500–1000 BC, making them some of the oldest Chalcolithic sites in the world. Some archaeologists find artifactual and structural evidence of casting by Hopewellian and Mississippian peoples to be demonstrated in the archaeological record.
In the 5th millennium BC copper artifacts start to appear in East Asia, such as in the Jiangzhai and Hongshan cultures, but those metal artifacts were not widely used during this early stage.
Copper manufacturing gradually appeared in the Yangshao period (5000–3000 BC). Jiangzhai is the only site where copper artifacts were found in the Banpo culture. Archaeologists have found remains of copper metallurgy in various cultures from the late fourth to the early third millennia BC. These include the copper-smelting remains and copper artifacts of the Hongshan culture (4700–2900) and copper slag at the Yuanwozhen site. This indicates that inhabitants of the Yellow River valley had already learned how to make copper artifacts by the later Yangshao period.
In the region of the Aïr Mountains, Niger, independent copper smelting developed between 3000 and 2500 BC. The process was not in a developed state, indicating smelting was not foreign. It became mature about 1500 BC. | [
{
"paragraph_id": 0,
"text": "The Chalcolithic (also called the Copper Age and Eneolithic) is an archaeological period characterized by the increasing use of smelted copper. It follows the Neolithic and precedes the Bronze Age. It occurs at different periods in different areas, and is absent in some parts of the world, such as Russia. Stone tools were still predominantly used during this period.",
"title": ""
},
{
"paragraph_id": 1,
"text": "The archaeological site of Belovode, on Rudnik mountain in Serbia, has the world's oldest securely dated evidence of copper smelting at high temperature, from c. 5,000 BC (7,000 BP). The transition from Copper Age to Bronze Age in Europe occurred between the late 5th and the late 3rd millennia BC. In the Ancient Near East the Copper Age covered about the same period, beginning in the late 5th millennium BC and lasting for about a millennium before it gave rise to the Early Bronze Age.",
"title": ""
},
{
"paragraph_id": 2,
"text": "A study in the journal Antiquity from 2013 reported the discovery of a tin bronze foil from the Pločnik archaeological site dated to c. 4,650 BC, as well as 14 other artefacts from Bulgaria and Serbia dated to before 4,000 BC, showed that early tin bronze was more common than previously thought and developed independently in Europe 1,500 years before the first tin bronze alloys in the Near East. In Britain, the Chalcolithic is a short period between about 2,500 and 2,200 BC, characterized by the first appearance of objects of copper and gold, a new ceramic culture and the immigration of Beaker culture people, heralding the end of the local late Neolithic.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The multiple names result from multiple definitions of the period. Originally, the term Bronze Age meant that either copper or bronze was being used as the chief hard substance for the manufacture of tools and weapons. Ancient writers, who provided the essential cultural references for educated people during the 19th century, used the same name for both copper- and bronze-using ages.",
"title": "Terminology"
},
{
"paragraph_id": 4,
"text": "The concept of the Copper Age was put forward by Hungarian scientist Ferenc Pulszky in the 1870s, when, on the basis of the significant number of large copper objects unearthed within the Carpathian Basin, he suggested that the previous threefold division of the Prehistoric Age – the Stone, Bronze and Iron Ages – should be further divided with the introduction of the Copper Age.",
"title": "Terminology"
},
{
"paragraph_id": 5,
"text": "In 1881, John Evans recognized that use of copper often preceded the use of bronze, and distinguished between a transitional Copper Age and the Bronze Age proper. He did not include the transitional period in the Bronze Age, but described it separately from the customary stone / bronze / iron system, at the Bronze Age's beginning. He did not, however, present it as a fourth age but chose to retain the tripartite system.",
"title": "Terminology"
},
{
"paragraph_id": 6,
"text": "In 1884, Gaetano Chierici, perhaps following the lead of Evans, renamed it in Italian as the eneo-litica, or \"bronze–stone\" transition. The phrase was never intended to mean that the period was the only one in which both bronze and stone were used. The Copper Age features the use of copper, excluding bronze; moreover, stone continued to be used throughout both the Bronze Age and the Iron Age. The part -litica simply names the Stone Age as the point from which the transition began and is not another -lithic age.",
"title": "Terminology"
},
{
"paragraph_id": 7,
"text": "Subsequently, British scholars used either Evans's \"Copper Age\" or the term \"Eneolithic\" (or Æneolithic), a translation of Chierici's eneo-litica. After several years, a number of complaints appeared in the literature that \"Eneolithic\" seemed to the untrained eye to be produced from e-neolithic, \"outside the Neolithic\", clearly not a definitive characterization of the Copper Age. Around 1900, many writers began to substitute Chalcolithic for Eneolithic, to avoid the false segmentation. The term chalcolithic is a combination of two words- Chalco+Lithic, derived from the Greek words \"khalkos\" meaning \"copper\", and \"líthos\" meaning \"stone\".",
"title": "Terminology"
},
{
"paragraph_id": 8,
"text": "But \"chalcolithic\" could also mislead: For readers unfamiliar with the Italian language, chalcolithic seemed to suggest another -lithic age, paradoxically part of the Stone Age despite the use of copper. Today, Copper Age, Eneolithic, and Chalcolithic are used synonymously to mean Evans's original definition of Copper Age.",
"title": "Terminology"
},
{
"paragraph_id": 9,
"text": "The emergence of metallurgy may have occurred first in the Fertile Crescent. The earliest use of lead is documented here from the late Neolithic settlement of Yarim Tepe in Iraq:",
"title": "Regions"
},
{
"paragraph_id": 10,
"text": "The earliest lead (Pb) finds in the ancient Near East are a 6th millennium BC bangle from Yarim Tepe in northern Iraq and a slightly later conical lead piece from Halaf period Arpachiyah, near Mosul. As native lead is extremely rare, such artifacts raise the possibility that lead smelting may have begun even before copper smelting.",
"title": "Regions"
},
{
"paragraph_id": 11,
"text": "Copper smelting is also documented at this site at about the same time period (soon after 6000 BC), although the use of lead seems to precede copper smelting. Early metallurgy is also documented at the nearby site of Tell Maghzaliyah, which seems to be dated even earlier, and completely lacks pottery.",
"title": "Regions"
},
{
"paragraph_id": 12,
"text": "The Timna Valley contains evidence of copper mining in 7000–5000 BC. The process of transition from Neolithic to Chalcolithic in the Middle East is characterized in archaeological stone tool assemblages by a decline in high quality raw material procurement and use. This dramatic shift is seen throughout the region, including the Tehran Plain, Iran. Here, analysis of six archaeological sites determined a marked downward trend in not only material quality, but also in aesthetic variation in the lithic artefacts. Fazeli & Coningham use these results as evidence of the loss of craft specialisation caused by increased use of copper tools.",
"title": "Regions"
},
{
"paragraph_id": 13,
"text": "The Tehran Plain findings illustrate the effects of the introduction of copper working technologies on the in-place systems of lithic craft specialists and raw materials. Networks of exchange and specialized processing and production that had evolved during the Neolithic seem to have collapsed by the Middle Chalcolithic (c. 4500–3500 BC) and been replaced by the use of local materials by a primarily household-based production of stone tools.",
"title": "Regions"
},
{
"paragraph_id": 14,
"text": "Arsenical copper or bronze was clearly produced in eastern Turkey (Malatya Province) at two ancient sites, Norşuntepe and Değirmentepe, around 4200 BC. According to Boscher (2016), hearths or natural draft furnaces, slag, ore, and pigment had been recovered throughout these sites. This was in the context of Ubaid period architectural complexes typical of southern Mesopotamian architecture. Norşuntepe site demonstrates that some form of arsenic alloying was indeed taking place by the 4th millennium BC. Since the slag identified at Norşuntepe contains no arsenic, this means that arsenic in some form was added separately.",
"title": "Regions"
},
{
"paragraph_id": 15,
"text": "A copper axe found at Prokuplje, Serbia contains the oldest securely dated evidence of copper-making, c. 5500 BC (7,500 years ago). The find in June 2010 extends the known record of copper smelting by about 800 years, and suggests that copper smelting may have been invented in separate parts of Asia and Europe at that time rather than spreading from a single source.",
"title": "Regions"
},
{
"paragraph_id": 16,
"text": "Knowledge of the use of copper was far more widespread than the metal itself. The European Battle Axe culture used stone axes modeled on copper axes, even with moulding carved in the stone. Ötzi the Iceman, who was found in the Ötztal Alps in 1991 and whose remains have been dated to about 3300 BC, was found with a Mondsee copper axe.",
"title": "Regions"
},
{
"paragraph_id": 17,
"text": "Examples of Chalcolithic cultures in Europe include Vila Nova de São Pedro and Los Millares on the Iberian Peninsula. Pottery of the Beaker people has been found at both sites, dating to several centuries after copper-working began there. The Beaker culture appears to have spread copper and bronze technologies in Europe, along with Indo-European languages. In Britain, copper was used between the 25th and 22nd centuries BC, but some archaeologists do not recognise a British Chalcolithic because production and use was on a small scale.",
"title": "Regions"
},
{
"paragraph_id": 18,
"text": "Ceramic similarities between the Indus Valley civilisation, southern Turkmenistan, and northern Iran during 4300–3300 BC of the Chalcolithic period suggest considerable mobility and trade.",
"title": "Regions"
},
{
"paragraph_id": 19,
"text": "The term \"Chalcolithic\" has also been used in the context of the South Asian Stone Age.",
"title": "Regions"
},
{
"paragraph_id": 20,
"text": "In Bhirrana, the earliest Indus civilization site, copper bangles and arrowheads were found. The inhabitants of Mehrgarh in present-day Pakistan fashioned tools with local copper ore between 7000 and 3300 BC.",
"title": "Regions"
},
{
"paragraph_id": 21,
"text": "The Nausharo site was a pottery workshop in province of Balochistan, Pakistan, that dates to 4,500 years ago; 12 blades and blade fragments were excavated there. These blades are 12–18 cm (5–7 in) long, 1.2–2.0 cm (0.5–0.8 in) wide, and relatively thin. Archaeological experiments show that these blades were made with a copper indenter and functioned as a potter's tool to trim and shape unfired pottery. Petrographic analysis indicates local pottery manufacturing, but also reveals the existence of a few exotic black-slipped pottery items from the Indus Valley.",
"title": "Regions"
},
{
"paragraph_id": 22,
"text": "In India, Chalcolithic culture flourished in mainly four farming communities – Ahar or Banas, Kayatha, Malwa, and Jorwe. These communities had some common traits like painted pottery and use of copper, but they had a distinct ceramic design tradition. Banas culture (2000–1600 BC) had ceramics with red, white, and black design. Kayatha culture (2450–1700 BC) had ceramics painted with brown colored design. Malwa culture (1900–1400 BC) had profusely decorated pottery with red or black colored design. Jorwe culture (1500–900 BC) had ceramics with matte surface and black-on-red design.",
"title": "Regions"
},
{
"paragraph_id": 23,
"text": "Pandu Rajar Dhibi (2000–1600 BC) is a Chalcolithic site in the eastern part of the Indian subcontinent. It is located on the south bank of Ajay River in West Bengal. Black ware, painted Koshi ware, pottery, various ornaments made of pearl and copper, various types of tools, pieces of fabric woven from Shimul cotton thread, human and various animal skeletons, burnt clay fragments have been found at the site.",
"title": "Regions"
},
{
"paragraph_id": 24,
"text": "In March 2018, archaeologists had discovered three carts and copper artifacts including weapons dating to 1800 BC in Sanauli village of Uttar Pradesh. The artifacts belongs to Ochre Coloured Pottery culture.",
"title": "Regions"
},
{
"paragraph_id": 25,
"text": "Andean civilizations in South America appear to have independently invented copper smelting.",
"title": "Regions"
},
{
"paragraph_id": 26,
"text": "The term \"Chalcolithic\" is also applied to American civilizations that already used copper and copper alloys thousands of years before Europeans immigrated. Besides cultures in the Andes and Mesoamerica, the Old Copper Complex mined and fabricated copper as tools, weapons, and personal ornaments in an area centered in the upper Great Lakes region: Present-day Michigan and Wisconsin.",
"title": "Regions"
},
{
"paragraph_id": 27,
"text": "The evidence of smelting or alloying that has been found in North America is subject to some dispute and a common assumption by archaeologists is that objects were cold-worked into shape. Artifacts from some of these sites have been dated to 6500–1000 BC, making them some of the oldest Chalcolithic sites in the world. Some archaeologists find artifactual and structural evidence of casting by Hopewellian and Mississippian peoples to be demonstrated in the archaeological record.",
"title": "Regions"
},
{
"paragraph_id": 28,
"text": "In the 5th millennium BC copper artifacts start to appear in East Asia, such as in the Jiangzhai and Hongshan cultures, but those metal artifacts were not widely used during this early stage.",
"title": "Regions"
},
{
"paragraph_id": 29,
"text": "Copper manufacturing gradually appeared in the Yangshao period (5000–3000 BC). Jiangzhai is the only site where copper artifacts were found in the Banpo culture. Archaeologists have found remains of copper metallurgy in various cultures from the late fourth to the early third millennia BC. These include the copper-smelting remains and copper artifacts of the Hongshan culture (4700–2900) and copper slag at the Yuanwozhen site. This indicates that inhabitants of the Yellow River valley had already learned how to make copper artifacts by the later Yangshao period.",
"title": "Regions"
},
{
"paragraph_id": 30,
"text": "In the region of the Aïr Mountains, Niger, independent copper smelting developed between 3000 and 2500 BC. The process was not in a developed state, indicating smelting was not foreign. It became mature about 1500 BC.",
"title": "Regions"
}
] | The Chalcolithic is an archaeological period characterized by the increasing use of smelted copper. It follows the Neolithic and precedes the Bronze Age. It occurs at different periods in different areas, and is absent in some parts of the world, such as Russia. Stone tools were still predominantly used during this period. The archaeological site of Belovode, on Rudnik mountain in Serbia, has the world's oldest securely dated evidence of copper smelting at high temperature, from c. 5,000 BC (7,000 BP). The transition from Copper Age to Bronze Age in Europe occurred between the late 5th and the late 3rd millennia BC. In the Ancient Near East the Copper Age covered about the same period, beginning in the late 5th millennium BC and lasting for about a millennium before it gave rise to the Early Bronze Age. A study in the journal Antiquity from 2013 reported the discovery of a tin bronze foil from the Pločnik archaeological site dated to c. 4,650 BC, as well as 14 other artefacts from Bulgaria and Serbia dated to before 4,000 BC, showed that early tin bronze was more common than previously thought and developed independently in Europe 1,500 years before the first tin bronze alloys in the Near East. In Britain, the Chalcolithic is a short period between about 2,500 and 2,200 BC, characterized by the first appearance of objects of copper and gold, a new ceramic culture and the immigration of Beaker culture people, heralding the end of the local late Neolithic. | 2001-12-12T23:15:21Z | 2023-12-28T16:17:59Z | [
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7,447 | Circumcision and law | Laws restricting, regulating, or banning circumcision, some dating back to ancient times, have been enacted in many countries and communities. In modern states, circumcision is generally presumed to be legal, but laws pertaining to assault or child custody have been applied in cases involving circumcision. In the case of non-therapeutic circumcision of children, proponents of laws in favor of the procedure often point to the rights of the parents or practitioners, namely the right of freedom of religion. Those against the procedure point to the boy's right of freedom from religion. In several court cases, judges have pointed to the irreversible nature of the act, the grievous harm to the boy's body, and the right to self-determination, and bodily integrity.
There are ancient religious requirements for circumcision. The Hebrew Bible commands Jews to circumcise their male children on the eighth day of life, and to circumcise their male slaves.
Laws which ban circumcision are also ancient. The ancient Greeks prized the foreskin and disapproved of the Jewish custom of circumcision. 1 Maccabees, 1:60–61 states that King Antiochus IV of Syria, the occupying power of Judea in 170 BCE, outlawed circumcision on penalty of death, one of the grievances leading to the Maccabean Revolt.
According to the Historia Augusta, the Roman emperor Hadrian issued a decree which banned circumcision in the empire, and some modern scholars argue that this was a main cause of the Jewish Bar Kokhba revolt of 132 CE. The Roman historian Cassius Dio, however, made no mention of such a law, instead, he blamed the Jewish uprising on Hadrian's decision to rebuild Jerusalem and rename it Aelia Capitolina, a city dedicated to Jupiter.
Antoninus Pius permitted Jews to circumcise their own sons. However, he forbade the circumcision of non-Jewish males who were either foreign-born slaves of Jews and the circumcision of non-Jewish males who were members of Jewish households, in violation of Genesis 17:12. He also banned non-Jewish men from converting to Judaism. Antoninus Pius exempted the Egyptian priesthood from the otherwise universal ban on circumcision.
Constantine the Great made it illegal to circumcise Christian slaves, and punished the owners who allowed it by freeing the Christian from slavery.
Circumcision has also played a major role in Christian history and theology. The Council of Jerusalem in the early Christian Church declared that circumcision was not necessary for Christians; covenant theology largely views the Christian sacrament of baptism as fulfilling the Israelite practice of circumcision, both being signs and seals of the covenant of grace. Though mainstream Christian denominations maintain a neutral position on routine circumcision, it is widely practiced in many Christian communities.
Historically, the Lutheran Churches have also not practiced circumcision among their communicants. The Seminal Church, founded in modern times, instructs that circumcision is a violation of one's human rights and should not be practiced. Currently the Catholic Church maintains a neutral position on the practice of non-religious circumcision. Today, many Christian denominations are neutral about ritual male circumcision, not requiring it for religious observance, but neither forbidding it for cultural or other reasons.
On the other hand, in Oriental Christianity, the Coptic Orthodox Church and Ethiopian Orthodox Church and Eritrean Orthodox Church require that their male members undergo circumcision.
Before glasnost, according to an article in The Jewish Press, Jewish ritual circumcision was forbidden in the Soviet Union. However, David E. Fishman, professor of Jewish History at the Jewish Theological Seminary of America, states that, whereas the heder and yeshiva, the organs of Jewish education, "were banned by virtue of the law separating church and school, and subjected to tough police and administrative actions", circumcision was not proscribed by law or suppressed by executive measures. Jehoshua A. Gilboa writes that while circumcision was not officially or explicitly banned, pressure was exerted to make it difficult. Mohels in particular were concerned that they could be punished for any health issue that might develop, even if it arose some time after the circumcision.
In 1967, all religion in Communist Albania was banned, along with the practice of circumcision. The practice was driven underground and many boys were secretly circumcised.
On 1 October 2013, the Parliamentary Assembly of the Council of Europe adopted a non-binding resolution in which they state they are "particularly worried about a category of violation of the physical integrity of children", and included in this category "circumcision of young boys for religious reasons". On 7 October, Israel's president Shimon Peres wrote a personal missive to the Secretary General of the Council of Europe, Thorbjørn Jagland, to stop the "ban", arguing: "The Jewish communities across Europe would be greatly afflicted to see their cultural and religious freedom impeded upon by the Council of Europe, an institution devoted to the protection of these very rights." Two days later, Jagland clarified that the resolution was non-binding and that "Nothing in the body of our legally binding standards would lead us to put on equal footing the issue of female genital mutilation and the circumcision of young boys for religious reasons."
A study commissioned by the European Parliament Committee on Civil Liberties, Justice and Home Affairs published in February 2013 stated that "Male circumcision for non-therapeutic reasons appears to be practiced with relative regularity and frequency throughout Europe," and said it was "the only scenario, among the topics discussed in the present chapter, in which the outcome of the balancing between the right to physical integrity and religious freedom is in favour of the latter." The study recommended that "the best interests of children should be paramount, while acknowledging the relevance of this practice for Muslims and Jews. Member States should ensure that circumcision of underage children is performed according to the medical profession's art and under conditions that do not put the health of minors at risk. The introduction of regulations by the Member States in order to set the conditions and the appropriate medical training for those called to perform it is warranted."
On 30 September 2013, the children's ombudsmen of all five Nordic countries – Denmark, Finland, Iceland, Norway, and Sweden – together with the children's spokesperson from Greenland and representatives of associations of Nordic paediatricians and paediatric surgeons, gathered in Oslo to discuss the issue, and released a joint declaration proposing a ban on non-therapeutic circumcision of male minors:
Let boys decide for themselves whether or not they want to be circumcised
Circumcision without a medical indication on a person unable to provide informed consent conflicts with basic principles of medical ethics, particularly because the operation is irreversible, painful and may cause serious complications. There are no health-related reasons to circumcise young boys in the Nordic countries. Arguments that may argue in favour of circumcision in adult men are of little relevance to children in the Nordic area. Boys can make up their own minds about the operation when they get old enough to provide informed consent.
As ombudsmen for children and experts in children's health we consider circumcision of underage boys without a medical indication to be in conflict with the UN Convention of the Rights of the Child, article 12, about children's right to express their views about their own matters, and article 24, pt. 3, which says that children must be protected against traditional rituals that may be harmful to their health.
In 2013, the UN Human Rights Council has urged all states to end operations that compromise the integrity and dignity of children and are prejudicial to the health of both girls and boys. We consider it central that parental rights in this matter do not have precedence over children's right to bodily integrity. What is in children's best interest must always come first, even if this may limit an adult's right to carry out their religious or traditional rituals.
The Nordic ombudsmen for children and experts in children's health therefore want to work towards a situation, where a circumcision can only be performed, if a boy, who has reached the age and level of maturity required to understand necessary medical information, consents to the operation. We wish a respectful dialogue among all parties involved about how to best ensure boys' self determination with respect to circumcision. We also urge our governments to inform about children's rights and health-related risks and consequences of the operation. We ask the Nordic governments to take the necessary steps towards ensuring that boys get the right to decide for themselves whether or not they want to be circumcised.
As of February 2018, no European country has a ban on male circumcision.
Whereas child custody regulations have been applied to cases involving circumcision, there seems to be no state which currently unequivocally bans infant male circumcision for non-therapeutic reasons, albeit the legality of such circumcision is disputed in some legislations.
The present table provides a non-exhaustive overview comparing legal restrictions and requirements on non-therapeutic infant circumcision in several countries. Some countries require one or both parents to consent to the operation; some of these (Finland, United Kingdom) have experienced legal battles between parents when one of them had their son's circumcision carried out or planned without the other's consent. Some countries require the procedure to be performed by or supervised by a qualified physician (or a qualified nurse in Sweden), and with (local) anaesthesia applied to the boy or man.
The Royal Australasian College of Physicians (RACP) finds that routine infant circumcision is not warranted in Australia and New Zealand and that, since circumcision involves physical injury, physicians ought to raise and consider with parents and considered the option of leaving circumcision until later, when the boy is old enough to make a decision for himself:
After reviewing the currently available evidence, the RACP believes that the frequency of diseases modifiable by circumcision, the level of protection offered by circumcision and the complication rates of circumcision do not warrant routine infant circumcision in Australia and New Zealand. ... Since circumcision involves physical risks which are undertaken for the sake of psychosocial benefits or debatable medical benefit to the child, ... The option of leaving circumcision until later, when the boy is old enough to make a decision for himself does need to be raised with parents and considered.
In 1993, a non-binding research paper of the Queensland Law Reform Commission (Circumcision of Male Infants) concluded that "On a strict interpretation of the assault provisions of the Queensland Criminal Code, routine circumcision of a male infant could be regarded as a criminal act," and that doctors who perform circumcision on male infants may be liable to civil claims by that child at a later date. No prosecutions have occurred in Queensland, and circumcisions continue to be performed.
In 1999, a Perth man won A$360,000 in damages after a doctor admitted he botched a circumcision operation at birth which left the man with a badly deformed penis.
In 2002, Queensland police charged a father with grievous bodily harm for having his two sons, then aged nine and five, circumcised without the knowledge and against the wishes of the mother. The mother and father were in a family court dispute. The charges were dropped when the police prosecutor revealed that he did not have all family court paperwork in court and the magistrate refused to grant an adjournment.
Cosmetic circumcision for newborn males is currently banned in all Australian public hospitals, South Australia being the last state to adopt the ban in 2007; the procedure was not forbidden from being performed in private hospitals. In the same year, the Tasmanian President of the Australian Medical Association, Haydn Walters, stated that they would support a call to ban circumcision for non-medical, non-religious reasons. In 2009, the Tasmanian Law Reform Institute released its Issues Paper investigating the law relating to male circumcision in Tasmania, it "highlights the uncertainty in relation to whether doctors can legally perform circumcision on infant males".
The Tasmania Law Reform Institute released its recommendations for reform of Tasmanian law relative to male circumcision on 21 August 2012. The report makes fourteen recommendations for reform of Tasmanian law relative to male circumcision.
The Belgian Advisory Committee on Bioethics finds that circumcision is a radical operation, and that physical integrity of the child takes precedence over parents' belief systems.
In 2012, Le Soir reported a 21% increase in the amount of circumcisions in Belgium from 2006 and 2011. In the previous 25 years, one in three Belgian-born boys had allegedly been circumcised. A questionnaire to hospitals in Wallonia and Brussels showed that about 80 to 90% of the procedures had religious or cultural motives. The Ministry of Health stressed the importance of safe circumstances, physicians warned that "no surgical procedure is without risk" and that circumcision was "not a necessary procedure".
In 2017, it was estimated that about 15% of Belgian men were circumcised. The incidence has been gradually rising: in 2002, about 17,800 boys or men underwent circumcision, which increased to almost 26,200 in 2016. The expenses of undergoing circumcision are covered by the National Institute for Disease and Disability Insurance (RIZIV/INAMI), costing about 2.7 million euros in 2016. After inquiries were submitted to the Belgian Bioethics Advisory Committee in early 2014, an ethics commission was set up to review the morality of covering the costs of medically unnecessary surgery through taxpayer money, especially considering that many taxpayers regard the practice as immoral. By July 2017, the commission reportedly reached consensus on discontinuing the financial coverage of non-medical circumcision, but was still debating whether to advise the government to institute a total ban of the practice. The commission's final (non-binding) recommendation, presented on 19 September 2017, was to cease public funding for non-medical circumcision, and to not circumcise anyone underage until they can consent or reject the procedure after being properly informed. This was in line with the 1990 Convention on the Rights of the Child, and mirrors the 2013 non-binding Parliamentary Assembly of the Council of Europe's resolution against underage non-therapeutic circumcision. However, Health Minister Maggie De Block rejected the commission's advice, arguing the RIZIV "cannot know whether there is a medical motive or not" when parents request a circumcision, and when they are denied a professional procedure, chances are parents will have a non-expert perform it, leading to worse results for the children. The Health Minister's response was received with mixed reactions.
The Canadian Paediatric Society does not recommend routine circumcision, finding that medical necessity has not been clearly established, and as such, that it should be deferred until the individual concerned is able to make his own choices.
According to the College of Physicians and Surgeons of British Columbia:
To date, the legality of infant male circumcision has not been tested in the Courts. It is thus assumed to be legal if it is performed competently, in the child's best interest, and after valid consent has been obtained.
At all times the physician must perform the procedure with competence and at all times, the parent and physician must act in the best interests of the child. Signed parental consent for any treatment is assumed to be valid if the parent understands the nature of the procedure and its associated risks and benefits. However, proxy consent by parents is now being questioned. Many believe it should be limited to consent for diagnosis and treatment of medical conditions, and that it is not relevant for non-therapeutic procedures."
Circumcision is legal in Denmark, and each year 1,000 to 2,000 boys are circumcised for non-medical reasons, the Danish Health Authority estimated in 2013, with most circumcisions being performed on Muslim or Jewish boys in private clinics or private homes. For boys below the age of 15, circumcision requires consent from the parents, while the boy can consent when he is 15 years or older. Circumcision is classified as an operation and reserved for doctors, though the responsible doctor can delegate the actual operation to non-medical person, as long as the doctor is present. The operation requires "sufficient pain relief (analgesic) and sedation (Anesthesia)" The doctor is responsible for having the necessary qualifications (both for the operation and the pain relief) and for being informed about the newest scientific developments in the area.
The current guidelines for non-medical circumcision are from 2013, and as of August 2020, a committee under the Danish Patient Health Authority are in the process of updating them. In August 2020, the Danish Society of Anaesthesiology and Intensive Care Medicine withdrew from the committee, because they disagreed with the Authority's opinion that local anaesthesia was sufficient, instead saying the scientific literature showed that general anaesthesia was necessary. Other professional organizations followed them, and according to DR, only the Authority and two private clinics that perform circumcisions remain in the committee.
The Danish population overwhelmingly support a ban on non-medical circumcision of boys below the age of 18. A 2020 survey measured the support at 86%, while surveys in 2018, 2016 and 2014 measured the support at 83%, 87% and 74%, respectively In 2018, a citizen's initiative calling for such a ban reached the threshold of 50.000 signatures to be put forward in the Folketing. It was subsequently found compliant with the Danish Constitution, in particularly §67 on religious freedom. The Danish Medical Association believes boys should decide for themselves after they turn 18 years old, but does not call for a ban. Politicians are hesitant in supporting a ban, with protection of religious freedom, in particular the Jewish practice of circumcision, and potential foreign policy and national security ramifications mentioned as some of the reasons. As of September 2020, the Social Democrats and Venstre, who together hold a majority in the Folketing, oppose a ban, while the Danish People's Party, the Socialist People's Party, Red-Green Alliance, The Alternative, The New Right and Liberal Alliance favour a ban. The Conservative and the Social Liberal Party have no official opinion on the question.
With a two-thirds majority against, the Folketing voted against a ban on circumcision in May 2021.
The Finnish Ombudsman for Equality finds that circumcising young boys without a medical reason is legally highly questionable, The Finnish Supreme Court found that non-therapeutic circumcision of boys is assault, and the Finnish Ombudsman for Children proposed that Finland should ban non-therapeutic circumcision of young boys:
The Deputy Ombudsman took the view that circumcising young boys, who are unable to give their consent, without a medical reason is highly questionable from a legal standpoint. … On 31 March 2016, the Supreme Court adopted two decisions that complement a previous precedent in which the Court found that the non-medical circumcision of boys constitutes an assault offence but is not punishable when it is considered to be in the best interests of the child. In 2015, the Finnish Ombudsman for Children Tuomas Kurttila proposed that Finland should enact an act prohibiting the non-medical circumcision of young boys.
In August 2006, a Finnish court ruled that the circumcision of a four-year-old boy arranged by his mother, who is Muslim, to be an illegal assault. The boy's father, who had not been consulted, reported the incident to the police. A local prosecutor stated that the prohibition of circumcision is not gender-specific in Finnish law. A lawyer for the Ministry of Social Affairs and Health stated that there is neither legislation nor prohibition on male circumcision, and that "the operations have been performed on the basis of common law." The case was appealed and in October 2008 the Finnish Supreme Court ruled that the circumcision, "carried out for religious and social reasons and in a medical manner, did not have the earmarks of a criminal offence. It pointed out in its ruling that the circumcision of Muslim boys is an established tradition and an integral part of the identity of Muslim men". In 2008, the Finnish government was reported to be considering a new law to legalise circumcision if the practitioner is a doctor and if the child consents. In December 2011, Helsinki District Court said that the Supreme Court's decision does not mean that circumcision is legal for any non-medical reasons. The court referred to the Convention on Human rights and Biomedicine of the Council of Europe, which was ratified in Finland in 2010.
In February 2010, a Jewish couple were fined for causing bodily harm to their then infant son who was circumcised in 2008 by a mohel brought in from the UK. Normal procedure for persons of Jewish faith in Finland is to have a locally certified mohel who works in Finnish healthcare perform the operation. In the 2008 case, the infant was not anesthetized and developed complications that required immediate hospital care. The parents were ordered to pay 1500 euros in damages to their child.
In November 2020, the Finnish Parliament passed a new law on female genital mutilation. An earlier version of the draft law could also have criminalised nonmedical infant circumcision, but due to intense lobbying by several Islamic and Jewish organisations including the Central Council of Finnish Jewish Communities, Milah UK, and the European Jewish Congress, the wording was changed and instead, the law passed in Parliament now states that the issue of circumcision of boys should be "clarified" in the future.
The German Association of Pediatricians (BVKJ) finds no medical reason for non-therapeutic circumcision and that the AAP (2012) recommendation scientifically unsustainable, and that boys should have the same constitutional legal right to physical integrity as girls:
From a medical point of view, there is no reason to remove the intact foreskin of underage and non-consenting boys. ... The tip of the foreskin is richly supplied with blood by important vascular structures. The foreskin serves as a connecting channel for numerous important veins. Circumcision can contribute to erectile dysfunction by destroying these blood lines. Their removal can, as the accounts of many sufferers show, lead to considerable restrictions on the sexual experience and mental stress. The frequently cited AAP opinion (DOI: 10.1542 / peds.2012-1989 Pediatrics "originally published online 27 Aug. 2012) contradicts earlier statements by the same organization without being able to invoke new research findings. This AAP opinion is now considered scientifically unsustainable by almost all other pediatric societies and associations in the world. ... The WHO recommendation on prophylactic circumcision also applies only to sexually mature sexually active men in low-hygiene countries and cannot be used as a basis for the prophylactic circumcision underage boys. ... Worldwide, no medical professional society, not even the AAP, sees such a significant advantage in the general circumcision of young boys that it generally recommends them. ... Religious regulations must not influence doctors in their care for their patients - and underage children deserve our very special care here. According to our sense of justice, boys have the same constitutional legal right to physical integrity as girls; they must not be disadvantaged because of their gender (Article 3 of the Basic Law). Parental rights and religious freedom end where the physical integrity of a child who is under the age of consent is not affected (Article 2 of the Basic Law) without a clear medical indication.
In October 2006, a Turkish national who performed ritual circumcisions on seven boys was convicted of causing dangerous bodily harm by the state court in Düsseldorf.
In September 2007, a Frankfurt am Main appeals court found that the circumcision of an 11-year-old boy without his approval was an unlawful personal injury. The boy, whose parents were divorced, was visiting his Muslim father during a vacation when his father forced him to be ritually circumcised. The boy had planned to sue his father for €10,000.
In May 2012, the Cologne regional appellate court ruled that religious circumcision of male children amounts to bodily injury, and is a criminal offense in the area under its jurisdiction. The decision based on the article "Criminal Relevance of Circumcising Boys. A Contribution to the Limitation of Consent in Cases of Care for the Person of the Child" published by Holm Putzke, a German law professor at the University of Passau. The court arrived at its judgment by application of the human rights provisions of the Basic Law, a section of the Civil Code, and some sections of the Criminal Code to non-therapeutic circumcision of male children. Some observers said it could set a legal precedent that criminalizes the practice. Jewish and Muslim groups were outraged by the ruling, viewing it as trampling on freedom of religion.
The German ambassador to Israel, Andreas Michaelis, told Israeli lawmakers that Germany was working to resolve the issue and that it does not apply at a national level, but instead only to the local jurisdiction of the court in Cologne. The Council of the Coordination of Muslims in Germany condemned the ruling, stating that it is "a serious attack on religious freedom". Ali Kizilkaya, a spokesman of the council, stated that, "The ruling does not take everything into account, religious practice concerning circumcision of young Muslims and Jews has been carried out over the millennia on a global level." The Roman Catholic archbishop of Aachen, Heinrich Mussinghoff, said that the ruling was "very surprising", and the contradiction between "basic rights on freedom of religion and the well-being of the child brought up by the judges is not convincing in this very case". Hans Ulrich Anke, the head of the Protestant Church in Germany, said the ruling should be appealed since it did not "sufficiently" consider the religious significance of the rite. A spokesman, Steffen Seibert, for German Chancellor Angela Merkel stated that Jewish and Muslim communities will be free to practice circumcision responsibly, and the government would find a way around the local ban in Cologne. The spokesman stated "For everyone in the government it is absolutely clear that we want to have Jewish and Muslim religious life in Germany. Circumcision carried out in a responsible manner must be possible in this country without punishment."
In July 2012, a group of rabbis, imams, and others said that they view the ruling against circumcision "an affront on our basic religious and human rights". The joint statement was signed by leaders of groups including Germany's Turkish-Islamic Union for Religious Affairs, the Islamic Center Brussels, the Rabbinical Centre of Europe, the European Jewish Parliament and the European Jewish Association, who met with members of European Parliament from Germany, Finland, Belgium, Italy, and Poland. European rabbis, who urged Jews to continue circumcision, planned further talks with Muslim and Christian leaders to determine how they can oppose the ban together. The Jewish Hospital of Berlin suspended the practice of male circumcision. On 19 July 2012, a joint resolution of the CDU/CSU, SPD and FDP factions in the Bundestag requesting the executive branch to draft a law permitting circumcision of boys to be performed without unnecessary pain in accordance with best medical practice carried with a broad majority.
The New York Times reported that the German Medical Association "condemned the ruling for potentially putting children at risk by taking the procedure out of the hands of doctors, but it also warned surgeons note to perform circumcisions for religious reasons until legal clarity was established". The ruling was supported by Deutsche Kinderhilfe, a German child rights organization, which asked for a two-year moratorium to discuss the issue and pointed out that religious circumcision may contravene the Convention on the Rights of the Child (Article 24.3: "States Parties shall take all effective and appropriate measures with a view to abolishing traditional practices prejudicial to the health of children.").
The German Academy for Pediatric and Adolescent Medicine (Deutsche Akademie für Kinder- und Jugendmedizin e.V., DAKJ), the German Association for Pediatric Surgery (Deutsche Gesellschaft für Kinderchirurgie, DGKCH) and the Professional Association of Pediatric and Adolescent Physicians (Berufsverband der Kinder- und Jugendärzte) took a firm stand against non-medical routine infant circumcision.
In July, in Berlin, a criminal complaint was lodged against Rabbi Yitshak Ehrenberg for "causing bodily harm" by performing religious circumcision, and for vocal support of the continuation of the practice. In September, the prosecutors dismissed the complaint, concluding that "there is no proof to establish that the rabbi's conduct met the 'condition of a criminal' violation".
In September, Reuters reported "Berlin's senate said doctors could legally circumcise infant boys for religious reasons in its region, given certain conditions."
On 12 December 2012, following a series of hearings and consultations, the Bundestag adopted the proposed law explicitly permitting non-therapeutic circumcision to be performed under certain conditions; it is now §1631(d) in the German Civil Code. The vote tally was 434 ayes, 100 noes, and 46 abstentions. Following approval by the Bundesrat and signing by the Bundespräsident, the new law became effective on 28 December 2012 a day after its publication in the Federal Gazette.
In May 2005, Iceland amended its General Penal Code to criminalise female genital mutilation
Any person who, in an assault, causes physical injury or damage to the health of a girl child or woman by removing her sexual organs, partly or in their entirety, shall be imprisoned for up to 6 years. If the assault results in serious physical injury or health damage, or in death, or if it is considered particularly reprehensible due to the method used, punishment for the offence shall take the form of up to 16 years' imprisonment
In February 2018, the Progressive Party proposed a bill that would change the words "girl child" to "child" and "her sexual organs" to "[their] sexual organs", thereby making Iceland the first European country to ban male circumcision for non-medical reasons. The bill was ultimately put on hold later that year following pressure from the United States, Israel, and various lobbyist groups.
In October 2005 a Nigerian man was cleared of a charge of reckless endangerment over the death of a baby from hemorrhage and shock after he had circumcised the child. The judge directed the jury not to "bring what he called their white western values to bear when they were deciding this case" and effectively imposed a not guilty verdict on the jury. After deliberating for an hour and a half they found the defendant not guilty.
In Israel, Jewish circumcision is entirely legal. The circumcision rate is very high in Israel, although some limited data suggests the practice is slowly declining. According to an online survey by the parents' portal Mamy in 2006, the rate was 95%, while earlier estimates put it at 98–99%. Ben Shalem, an organisation dedicated to the abolition of circumcision, petitioned the Supreme Court in 1999 on the grounds that circumcision violated human dignity, children's rights and criminal law. The petition was rejected. In 2013, a Rabbinical court in Israel ordered a mother in the midst of divorce proceedings to circumcise her son in accordance with the father's wishes, or pay a fine of 500 Israeli Shekel for every day that the child is not circumcised. She appealed against the Rabbinical court ruling and the High Court ruled in her favour stating, among other considerations, the basic right of freedom from religion.
The Royal Dutch Medical Association (KNMG) finds non-therapeutic circumcision of male minors to be in conflict with children's right to autonomy and physical integrity, and that there are good reasons for its legal prohibition, as exists for female genital mutilation:
In May 2008 a father who had his two sons, aged 3 and 6, circumcised against the will of their mother was found not guilty of abuse as the circumcision was performed by a physician and due to the court's restraint in setting a legal precedent; instead he was given a 6-week suspended jail sentence for taking the boys away from their mother against her will.
The parquet of the Supreme Court of the Netherlands made an elaborate statement on the legal status of circumcision on 5 July 2011 in the course of a criminal case. First, the parquet notes that there is no law that specifically prohibits the circumcision of boys, nor that the practice falls under the more general crime of (zware) mishandeling ('(grave) assault'). "Genital mutilation of girls in any case undoubtedly falls under (zware) mishandeling (Art. 300–303 Dutch Criminal Code). Whereas most forms of genital cutting of girls are generally marked as genital mutilation, a similar communis opinio regarding genital cutting of boys does not yet exist so far." The Supreme Court acknowledged that society's attitudes on genital cutting of boys had been gradually shifting over the course of years, and that "the increasing concern [in the medical world] about the harm and the risk of complications during a circumcision is indeed relevant", but that overall there were not enough reasons yet to proceed to criminalisation. Neither could intentional infliction of grave bodily harm (Art. 82 Dutch Criminal Code) be applied to the normal circumstances of a competently and hygienically performed circumcision in a clinic. And because young children are incapable of exercising the right to self-determination, parents ought to do this on their behalf. They can both request a circumcision to be performed, as well as consent to it being performed, on the grounds of their parental authority. However, it is important that both parents consent to the procedure.
The Norwegian Ombudsman for Children (Barneombudet) opposes circumcising children, and stated on 29 September 2013 that it is right to wait until children are old enough to decide for themselves:
The Ombudsman for Children is opposed to having children circumcised when they are so small that they are unable to express their views on it. Being circumcised is something that cannot be changed. Then we think it is right to wait until the children are old enough to decide for themselves.
In June 2012, the centre-right Centre Party proposed a ban on circumcision on males under eighteen, after an Oslo infant died in May following a circumcision.
A bill on ritual circumcision of boys was passed (against two votes) in the Norwegian Parliament in June 2014, with the new law going into effect on 1 January 2015. This law explicitly allows Jews to practice brit milah and obligates the Norwegian Health Care regions to offer the Muslim minority a safe and affordable procedure. Local anaesthesia needs to be applied and a licensed physician needs to be present at the circumcision, which hospitals started to perform in March 2015.
In May 2017, the right-wing Progress Party proposed to ban circumcision for males under sixteen.
The Children's Act 2005 makes the circumcision of male children under 16 unlawful except for religious or medical reasons. In the Eastern Cape province the Application of Health Standards in Traditional Circumcision Act, 2001, regulates traditional circumcision, which causes the death or mutilation of many youths by traditional surgeons each year. Among other provisions, the minimum age for circumcision is age 18.
In 2004, a 22-year-old Rastafarian convert was forcibly circumcised by a group of Xhosa tribal elders and relatives. When he first fled, two police returned him to those who had circumcised him. In another case, a medically circumcised Xhosa man was forcibly recircumcised by his father and community leaders. He laid a charge of unfair discrimination on the grounds of his religious beliefs, seeking an apology from his father and the Congress of Traditional Leaders of South Africa. According to South African newspapers, the subsequent trial became "a landmark case around forced circumcision". In October 2009, the Eastern Cape High Court at Bhisho (sitting as an Equality Court) clarified that circumcision is unlawful unless done with the full consent of the initiate.
The Slovenian Human Rights Ombudsman found in February 2012, after consulting various relevant expert bodies and studying relevant constitutional and legal stipulations, that circumcision for non-medical reasons is a violation of children's rights, that ritual circumcision for religious reasons is unacceptable in Slovenia for both legal and ethical reasons and should not be performed by doctors:
We asked the Higher Academic College for Surgery for professional doctrine in this area (...). The College did not answer all our questions, but sent us the conclusion that circumcision of boys for non-medical reasons is not medically justified.
The Medical Ethics Commission of the Republic of Slovenia sent us a longer response, from which we will summarise its principled opinion, "that ritual circumcision of boys for religious reasons is unacceptable in our country for legal and ethical reasons, and doctors should not perform it". In addition to the unacceptability of circumcision from an ethical point of view, the Commission also emphasises that it is also unacceptable that an already performed procedure is falsely shown as medically indicated in the medical documentation.
We asked the Health Insurance Institute of Slovenia for information on the payment for circumcision (...) which, according to the institute, is EUR 34.88 per treatment. If the intervention is not medically indicated, the service is not covered by health insurance and must be paid for by the patient or their representatives. (...)
It is clear from Article 56 (special protection of children) and Article 35 (inviolability of physical and mental integrity of everyone) of the Slovenian Constitution that any interference with the physical integrity of the child is limited, and can only be justified by medical reasons. (...) However, if the circumcision of a child is not medically indicated, but is only the result of the beliefs of its parents (religious or otherwise), such an intervention has no legal basis. (...) The Patient's Rights Act stipulates that, as a rule, children have the capacity to consent after the age of 15, unless the doctor assesses that they are not capable of doing so based on their maturity. By law, a child under the age of 15 is generally not capable of giving consent, and even in these cases the doctor can assess that it is capable of doing so. The law specifically stipulates that the child's opinion regarding treatment is taken into account to the greatest extent possible, if it is able to express the opinion and if it understands its meaning and consequences.
(...) While parents have some rights to conform their children's education to their religious and ethical beliefs (as long as these do not violate the rights of the children themselves) under Article 41.3 of the Constitution, in our view, the guidelines on religious education do not include the right of parents to decide to interfere with their child's body solely because of their religious beliefs. Therefore, we believe that circumcision for non-medical reasons is not admissible and represents an illegal intervention in the child's body, thereby violating its rights.
In 2001, the Parliament of Sweden enacted a law allowing only persons certified by the National Board of Health to circumcise infants. It requires a medical doctor or an anesthesia nurse to accompany the circumciser and for anaesthetic to be applied beforehand. After the first two months of life circumcisions can only be performed by a physician. The stated purpose of the law was to increase the safety of the procedure.
Swedish Jews and Muslims objected to the law, and in 2001, the World Jewish Congress called it "the first legal restriction on Jewish religious practice in Europe since the Nazi era". The requirement for an anaesthetic to be administered by a medical professional is a major issue, and the low degree of availability of certified professionals willing to conduct circumcision has also been subject to criticism. According to a survey, two out of three paediatric surgeons said they refuse to perform non-therapeutic circumcision, and less than half of all county councils offer it in their hospitals. However, in 2006, the U.S. State Department stated, in a report on Sweden, that most Jewish mohels had been certified under the law and 3000 Muslim and 40–50 Jewish boys were circumcised each year. An estimated 2000 of these are performed by persons who are neither physicians nor have officially recognised certification.
The Swedish National Board of Health and Welfare reviewed the law in 2005 and recommended that it be maintained, but found that the law had failed with regard to the intended consequence of increasing the safety of circumcisions. A later report by the Board criticised the low level of availability of legal circumcisions, partly due to reluctance among health professionals. To remedy this, the report suggested a new law obliging all county councils to offer non-therapeutic circumcision in their hospitals, but this was later abandoned in favour of a non-binding recommendation.
In January 2014, the Swedish Medical Association (SLF) found no known medical benefits to circumcision of children, and thus strong reasons to wait until the boy is old and mature enough (12 or 13 years old) to give informed consent, aiming at ceasing all non-medically justified circumcision without prior consent:
The issue of circumcision of boys has long been debated both in Sweden and in other countries. The Ethics and Responsibility Council (EAR) believes that the goal is to cease non-medically justified circumcision without prior consent. There are no known medical benefits to the [circumcision] intervention in children. Even if the procedure is performed within the healthcare system, there is, however, a risk of serious complications. Therefore, there are strong reasons to wait for the intervention until the person who is the subject of the measure has reached such age and maturity that he can give informed consent. (...)
In October 2018, the right-wing populist Sweden Democrats party submitted a draft motion to parliament calling for a ban. At the annual conference of the Centre Party in September 2019, 314 to 166 commissioners voted in favor of prohibiting boys' circumcision. Several Jewish and Islamic organisations voiced their opposition to a potential ban. The Left Party has also expressed support for a prohibition on circumcising boys before the age of 18; other parties have so far not backed a potential ban, though the Green Party found the practice "problematic".
According to a July 2012 survey by 20 Minuten involving 8,000 participants, 64% of the Swiss population wanted religious circumcision to be banned. 67% of men and 56% of women were in favour. 93% of Muslim respondents and 75% of Jewish respondents opposed a ban. Over 25% of male respondents were themselves circumcised; 96% of Muslim men and 89% of Jewish men in the survey said they were circumcised, while 20% of circumcised men belonged to neither religion. Almost a third of circumcised men favoured a ban, with 12% wishing in hindsight that they had not been circumcised.
Male circumcision has traditionally been presumed to be legal under British law, however some authors have argued that there is no solid foundation for this view in English law.
While legal, the British Medical Association finds it ethically unacceptable to circumcise a child or young person, either with or without competence, who refuses the procedure, irrespective of the parents' wishes, and that parental preference alone does not constitute sufficient grounds for performing NTMC on a child unable to express his own view:
The BMA considers that the evidence concerning health benefit from NTMC (non-therapeutic male circumcision) is insufficient for this alone to be a justification for boys undergoing circumcision. In addition, some of the anticipated health benefits of male circumcision can be realised by other means – for example, condom use. … There are clearly risks inherent in any surgical procedure: for example, pain, bleeding, surgical mishap and complications of anaesthesia. With NTMC there are associated medical and psychological risks … The BMA cannot envisage a situation in which it is ethically acceptable to circumcise a child or young person, either with or without competence, who refuses the procedure, irrespective of the parents' wishes. … Parental preference alone does not constitute sufficient grounds for performing NTMC on a child unable to express his own view. … Furthermore, the harm of a person not having the opportunity to choose not to be circumcised or choose not to follow the traditions of his parents must also be taken into account, together with the damage that can be done to the individual's relationship with his parents and the medical profession, if he feels harmed by an irreversible non-therapeutic procedure.
The passage of the Human Rights Act 1998 has led to some speculation that the lawfulness of the circumcision of male children is unclear.
One 1999 case, Re "J" (child's religious upbringing and circumcision) said that circumcision in Britain required the consent of all those with parental responsibility (however this comment was not part of the reason for the judgement and therefore is not legally binding), or the permission of the court, acting for the best interests of the child, and issued an order prohibiting the circumcision of a male child of a non-practicing Muslim father and non-practicing Christian mother with custody. The reasoning included evidence that circumcision carried some medical risk; that the operation would be likely to weaken the relationship of the child with his mother, who strongly objected to circumcision without medical necessity; that the child may be subject to ridicule by his peers as the odd one out and that the operation might irreversibly reduce sexual pleasure, by permanently removing some sensory nerves, even though cosmetic foreskin restoration might be possible. The court did not rule out circumcision against the consent of one parent. It cited a hypothetical case of a Jewish mother and an agnostic father with a number of sons, all of whom, by agreement, had been circumcised as infants in accordance with Jewish laws; the parents then have another son who is born after they have separated; the mother wishes him to be circumcised like his brothers; the father for no good reason, refuses his agreement. In such a case, a decision in favor of circumcision was said to be likely.
In 2001 the General Medical Council had found a doctor who had botched circumcision operations guilty of abusing his professional position and that he had acted "inappropriately and irresponsibly", and struck him off the register. A doctor who had referred patients to him, and who had pressured a mother into agreeing to the surgery, was also condemned. He was put on an 18-month period of review and retraining, and was allowed to resume unrestricted practice as a doctor in March 2003, after a committee found that he had complied with conditions it placed on him. According to the Northern Echo, he "told the committee he has now changed his approach to circumcision referrals, accepting that most cases can be treated without the need for surgery".
Fox and Thomson (2005) argue that consent cannot be given for non-therapeutic circumcision. They say there is "no compelling legal authority for the common view that circumcision is lawful".
In 2005 a Muslim man had his son circumcised against the wishes of the child's mother who was the custodial parent.
In 2009 it was reported that a 20-year-old man whose father had him ritually circumcised as a baby is preparing to sue the doctor who circumcised him. This is believed to be the first time a person who was circumcised as an infant has made a claim in the UK. The case is expected to be heard in 2010.
In a 2015 case regarding female circumcision, a judge concluded that non-therapeutic circumcision of male children is a "significant harm". In 2016, the Family Court in Exeter ruled that a Muslim father could not have his two sons (aged 6 and 4) circumcised after their mother disagreed. Mrs Justice Roberts declared that the boys should first grow old enough "to the point where each of the boys themselves will make their individual choices once they have the maturity and insight to appreciate the consequences and longer-term effects of the decisions which they reach".
In June 2017, Nottinghamshire Police arrested three people on suspicion of "conspiracy to commit grievous bodily harm". The alleged victim was purportedly circumcised while in its Muslim father's care at his grandparents' in July 2013 without the consent of his mother (a non-religious white British woman who conceived the child after a casual affair with the man, whom she had separated from after the incident). The mother first contacted social services and eventually the police in November 2014. The police initially dismissed the complaint, but after the mother got help from the anti-circumcision group Men Do Complain and leading human rights lawyer Saimo Chahal QC, they reopened the case, and ended up arresting three suspects involved. In November 2017, the Crown Prosecution Service explained to the mother in a letter they were not going to prosecute the doctor, who claimed he was unaware of the mother's non-consent. However, Chahal appealed this decision, which she said "lacks any semblance of a considered and reasoned decision and is flawed and irrational", and threatened to bring the case to court. The by then 29-year-old mother finally sued the doctor in April 2018. Niall McCrae, mental health expert from King's College London, argued that this case could mean "the end of ritual male circumcision in the UK", drawing comparisons with earlier rulings against female genital mutilation.
Circumcision of adults who grant personal informed consent for the surgical operation is legal.
In the United States, non-therapeutic circumcision of male children has long been assumed to be lawful in every jurisdiction provided that one parent grants surrogate informed consent. Adler (2013) has recently challenged the validity of this assumption. As with every country, doctors who circumcise children must take care that all applicable rules regarding informed consent and safety are satisfied.
While anti-circumcision groups have occasionally proposed legislation banning non-therapeutic child circumcision, it has not been supported in any legislature. After a failed attempt to adopt a local ordinance banning circumcision on a San Francisco ballot, the state of California enacted in October 2011 a law protecting circumcision from local attempts to ban the practice.
In 2012, New York City required those performing metzitzah b'peh, the oral suction of the open circumcision wound required by Hasidim, to obey stringent consent requirements, including documentation. Agudath Israel of America and other Jewish groups have planned to sue the city in response.
Disputes between parents
Occasionally the courts are asked to make a ruling when parents cannot agree on whether or not to circumcise a child.
In January 2001 a dispute between divorcing parents in New Jersey was resolved when the mother, who sought to have the boy circumcised withdrew her request. The boy had experienced two instances of foreskin inflammation and she wanted to have him circumcised. The father, who had experienced a traumatic circumcision as a child, objected and they turned to the courts for a decision. The Medical Society of New Jersey and the Urological Society of New Jersey both opposed any court ordered medical treatment. As the parties came to an agreement, no precedent was set. In June 2001 a Nevada court settled a dispute over circumcision between two parents but put a strict gag order on the terms of the settlement. In July 2001 a dispute between parents in Kansas over circumcision was resolved when the mother's request to have the infant circumcised was withdrawn. In this case the father opposed circumcision while the mother asserted that not circumcising the child was against her religious beliefs. (The woman's pastor had stated that circumcision was "important" but was not necessary for salvation.) On 24 July 2001 the parents reached agreement that the infant would not be circumcised.
On 14 July 2004 a mother appealed to the Missouri Supreme Court to prevent the circumcision of her son after a county court and the Court of Appeals had denied her a writ of prohibition. However, in early August 2004, before the Supreme Court had given its ruling, the father, who had custody of the boy, had him circumcised.
In October 2006 a judge in Chicago granted an injunction blocking the circumcision of a 9-year-old boy. In granting the injunction the judge stated that "the boy could decide for himself whether to be circumcised when he turns 18."
In November 2007, the Oregon Supreme Court heard arguments from a divorced Oregon couple over the circumcision of their son. The father wanted his son, who turned 13 on 2 March 2008, to be circumcised in accordance with the father's religious views; the child's mother opposes the procedure. The parents dispute whether the boy is in favor of the procedure. A group opposed to circumcision filed briefs in support of the mother's position, while some Jewish groups filed a brief in support of the father. On 25 January 2008, the Court returned the case to the trial court with instructions to determine whether the child agrees or objects to the proposed circumcision. The father appealed to the US Supreme Court to allow him to have his son circumcised but his appeal was rejected. The case then returned to the trial court. When the trial court interviewed the couple's son, now 14 years old, the boy stated that he did not want to be circumcised. This also provided the necessary circumstances to allow the boy to change residence to live with his mother. The boy was not circumcised.
Other disputes
In September 2004 the North Dakota Supreme Court rejected a mother's attempt to prosecute her doctor for circumcising her child without fully informing her of the consequences of the procedure. The judge and jury found that the plaintiffs were adequately informed of possible complications, and the jury further found that it is not incumbent on the doctors to describe every "insignificant" risk.
In March 2009 a Fulton County, GA, State Court jury awarded $2.3 million in damages to a 4-year-old boy and his mother for a botched circumcision in which too much tissue was removed causing permanent disfigurement.
In August 2010 an eight-day-old boy was circumcised in a Florida hospital against the stated wishes of the parents. The hospital admitted that the boy was circumcised by mistake; the mother has sued the hospital and the doctor involved in the case. | [
{
"paragraph_id": 0,
"text": "Laws restricting, regulating, or banning circumcision, some dating back to ancient times, have been enacted in many countries and communities. In modern states, circumcision is generally presumed to be legal, but laws pertaining to assault or child custody have been applied in cases involving circumcision. In the case of non-therapeutic circumcision of children, proponents of laws in favor of the procedure often point to the rights of the parents or practitioners, namely the right of freedom of religion. Those against the procedure point to the boy's right of freedom from religion. In several court cases, judges have pointed to the irreversible nature of the act, the grievous harm to the boy's body, and the right to self-determination, and bodily integrity.",
"title": ""
},
{
"paragraph_id": 1,
"text": "There are ancient religious requirements for circumcision. The Hebrew Bible commands Jews to circumcise their male children on the eighth day of life, and to circumcise their male slaves.",
"title": "History"
},
{
"paragraph_id": 2,
"text": "Laws which ban circumcision are also ancient. The ancient Greeks prized the foreskin and disapproved of the Jewish custom of circumcision. 1 Maccabees, 1:60–61 states that King Antiochus IV of Syria, the occupying power of Judea in 170 BCE, outlawed circumcision on penalty of death, one of the grievances leading to the Maccabean Revolt.",
"title": "History"
},
{
"paragraph_id": 3,
"text": "According to the Historia Augusta, the Roman emperor Hadrian issued a decree which banned circumcision in the empire, and some modern scholars argue that this was a main cause of the Jewish Bar Kokhba revolt of 132 CE. The Roman historian Cassius Dio, however, made no mention of such a law, instead, he blamed the Jewish uprising on Hadrian's decision to rebuild Jerusalem and rename it Aelia Capitolina, a city dedicated to Jupiter.",
"title": "History"
},
{
"paragraph_id": 4,
"text": "Antoninus Pius permitted Jews to circumcise their own sons. However, he forbade the circumcision of non-Jewish males who were either foreign-born slaves of Jews and the circumcision of non-Jewish males who were members of Jewish households, in violation of Genesis 17:12. He also banned non-Jewish men from converting to Judaism. Antoninus Pius exempted the Egyptian priesthood from the otherwise universal ban on circumcision.",
"title": "History"
},
{
"paragraph_id": 5,
"text": "Constantine the Great made it illegal to circumcise Christian slaves, and punished the owners who allowed it by freeing the Christian from slavery.",
"title": "History"
},
{
"paragraph_id": 6,
"text": "Circumcision has also played a major role in Christian history and theology. The Council of Jerusalem in the early Christian Church declared that circumcision was not necessary for Christians; covenant theology largely views the Christian sacrament of baptism as fulfilling the Israelite practice of circumcision, both being signs and seals of the covenant of grace. Though mainstream Christian denominations maintain a neutral position on routine circumcision, it is widely practiced in many Christian communities.",
"title": "History"
},
{
"paragraph_id": 7,
"text": "Historically, the Lutheran Churches have also not practiced circumcision among their communicants. The Seminal Church, founded in modern times, instructs that circumcision is a violation of one's human rights and should not be practiced. Currently the Catholic Church maintains a neutral position on the practice of non-religious circumcision. Today, many Christian denominations are neutral about ritual male circumcision, not requiring it for religious observance, but neither forbidding it for cultural or other reasons.",
"title": "History"
},
{
"paragraph_id": 8,
"text": "On the other hand, in Oriental Christianity, the Coptic Orthodox Church and Ethiopian Orthodox Church and Eritrean Orthodox Church require that their male members undergo circumcision.",
"title": "History"
},
{
"paragraph_id": 9,
"text": "Before glasnost, according to an article in The Jewish Press, Jewish ritual circumcision was forbidden in the Soviet Union. However, David E. Fishman, professor of Jewish History at the Jewish Theological Seminary of America, states that, whereas the heder and yeshiva, the organs of Jewish education, \"were banned by virtue of the law separating church and school, and subjected to tough police and administrative actions\", circumcision was not proscribed by law or suppressed by executive measures. Jehoshua A. Gilboa writes that while circumcision was not officially or explicitly banned, pressure was exerted to make it difficult. Mohels in particular were concerned that they could be punished for any health issue that might develop, even if it arose some time after the circumcision.",
"title": "History"
},
{
"paragraph_id": 10,
"text": "In 1967, all religion in Communist Albania was banned, along with the practice of circumcision. The practice was driven underground and many boys were secretly circumcised.",
"title": "History"
},
{
"paragraph_id": 11,
"text": "On 1 October 2013, the Parliamentary Assembly of the Council of Europe adopted a non-binding resolution in which they state they are \"particularly worried about a category of violation of the physical integrity of children\", and included in this category \"circumcision of young boys for religious reasons\". On 7 October, Israel's president Shimon Peres wrote a personal missive to the Secretary General of the Council of Europe, Thorbjørn Jagland, to stop the \"ban\", arguing: \"The Jewish communities across Europe would be greatly afflicted to see their cultural and religious freedom impeded upon by the Council of Europe, an institution devoted to the protection of these very rights.\" Two days later, Jagland clarified that the resolution was non-binding and that \"Nothing in the body of our legally binding standards would lead us to put on equal footing the issue of female genital mutilation and the circumcision of young boys for religious reasons.\"",
"title": "International law"
},
{
"paragraph_id": 12,
"text": "A study commissioned by the European Parliament Committee on Civil Liberties, Justice and Home Affairs published in February 2013 stated that \"Male circumcision for non-therapeutic reasons appears to be practiced with relative regularity and frequency throughout Europe,\" and said it was \"the only scenario, among the topics discussed in the present chapter, in which the outcome of the balancing between the right to physical integrity and religious freedom is in favour of the latter.\" The study recommended that \"the best interests of children should be paramount, while acknowledging the relevance of this practice for Muslims and Jews. Member States should ensure that circumcision of underage children is performed according to the medical profession's art and under conditions that do not put the health of minors at risk. The introduction of regulations by the Member States in order to set the conditions and the appropriate medical training for those called to perform it is warranted.\"",
"title": "International law"
},
{
"paragraph_id": 13,
"text": "On 30 September 2013, the children's ombudsmen of all five Nordic countries – Denmark, Finland, Iceland, Norway, and Sweden – together with the children's spokesperson from Greenland and representatives of associations of Nordic paediatricians and paediatric surgeons, gathered in Oslo to discuss the issue, and released a joint declaration proposing a ban on non-therapeutic circumcision of male minors:",
"title": "International law"
},
{
"paragraph_id": 14,
"text": "Let boys decide for themselves whether or not they want to be circumcised",
"title": "International law"
},
{
"paragraph_id": 15,
"text": "Circumcision without a medical indication on a person unable to provide informed consent conflicts with basic principles of medical ethics, particularly because the operation is irreversible, painful and may cause serious complications. There are no health-related reasons to circumcise young boys in the Nordic countries. Arguments that may argue in favour of circumcision in adult men are of little relevance to children in the Nordic area. Boys can make up their own minds about the operation when they get old enough to provide informed consent.",
"title": "International law"
},
{
"paragraph_id": 16,
"text": "As ombudsmen for children and experts in children's health we consider circumcision of underage boys without a medical indication to be in conflict with the UN Convention of the Rights of the Child, article 12, about children's right to express their views about their own matters, and article 24, pt. 3, which says that children must be protected against traditional rituals that may be harmful to their health.",
"title": "International law"
},
{
"paragraph_id": 17,
"text": "In 2013, the UN Human Rights Council has urged all states to end operations that compromise the integrity and dignity of children and are prejudicial to the health of both girls and boys. We consider it central that parental rights in this matter do not have precedence over children's right to bodily integrity. What is in children's best interest must always come first, even if this may limit an adult's right to carry out their religious or traditional rituals.",
"title": "International law"
},
{
"paragraph_id": 18,
"text": "The Nordic ombudsmen for children and experts in children's health therefore want to work towards a situation, where a circumcision can only be performed, if a boy, who has reached the age and level of maturity required to understand necessary medical information, consents to the operation. We wish a respectful dialogue among all parties involved about how to best ensure boys' self determination with respect to circumcision. We also urge our governments to inform about children's rights and health-related risks and consequences of the operation. We ask the Nordic governments to take the necessary steps towards ensuring that boys get the right to decide for themselves whether or not they want to be circumcised.",
"title": "International law"
},
{
"paragraph_id": 19,
"text": "As of February 2018, no European country has a ban on male circumcision.",
"title": "Modern laws by country"
},
{
"paragraph_id": 20,
"text": "Whereas child custody regulations have been applied to cases involving circumcision, there seems to be no state which currently unequivocally bans infant male circumcision for non-therapeutic reasons, albeit the legality of such circumcision is disputed in some legislations.",
"title": "Modern laws by country"
},
{
"paragraph_id": 21,
"text": "The present table provides a non-exhaustive overview comparing legal restrictions and requirements on non-therapeutic infant circumcision in several countries. Some countries require one or both parents to consent to the operation; some of these (Finland, United Kingdom) have experienced legal battles between parents when one of them had their son's circumcision carried out or planned without the other's consent. Some countries require the procedure to be performed by or supervised by a qualified physician (or a qualified nurse in Sweden), and with (local) anaesthesia applied to the boy or man.",
"title": "Modern laws by country"
},
{
"paragraph_id": 22,
"text": "The Royal Australasian College of Physicians (RACP) finds that routine infant circumcision is not warranted in Australia and New Zealand and that, since circumcision involves physical injury, physicians ought to raise and consider with parents and considered the option of leaving circumcision until later, when the boy is old enough to make a decision for himself:",
"title": "Modern laws by country"
},
{
"paragraph_id": 23,
"text": "After reviewing the currently available evidence, the RACP believes that the frequency of diseases modifiable by circumcision, the level of protection offered by circumcision and the complication rates of circumcision do not warrant routine infant circumcision in Australia and New Zealand. ... Since circumcision involves physical risks which are undertaken for the sake of psychosocial benefits or debatable medical benefit to the child, ... The option of leaving circumcision until later, when the boy is old enough to make a decision for himself does need to be raised with parents and considered.",
"title": "Modern laws by country"
},
{
"paragraph_id": 24,
"text": "In 1993, a non-binding research paper of the Queensland Law Reform Commission (Circumcision of Male Infants) concluded that \"On a strict interpretation of the assault provisions of the Queensland Criminal Code, routine circumcision of a male infant could be regarded as a criminal act,\" and that doctors who perform circumcision on male infants may be liable to civil claims by that child at a later date. No prosecutions have occurred in Queensland, and circumcisions continue to be performed.",
"title": "Modern laws by country"
},
{
"paragraph_id": 25,
"text": "In 1999, a Perth man won A$360,000 in damages after a doctor admitted he botched a circumcision operation at birth which left the man with a badly deformed penis.",
"title": "Modern laws by country"
},
{
"paragraph_id": 26,
"text": "In 2002, Queensland police charged a father with grievous bodily harm for having his two sons, then aged nine and five, circumcised without the knowledge and against the wishes of the mother. The mother and father were in a family court dispute. The charges were dropped when the police prosecutor revealed that he did not have all family court paperwork in court and the magistrate refused to grant an adjournment.",
"title": "Modern laws by country"
},
{
"paragraph_id": 27,
"text": "Cosmetic circumcision for newborn males is currently banned in all Australian public hospitals, South Australia being the last state to adopt the ban in 2007; the procedure was not forbidden from being performed in private hospitals. In the same year, the Tasmanian President of the Australian Medical Association, Haydn Walters, stated that they would support a call to ban circumcision for non-medical, non-religious reasons. In 2009, the Tasmanian Law Reform Institute released its Issues Paper investigating the law relating to male circumcision in Tasmania, it \"highlights the uncertainty in relation to whether doctors can legally perform circumcision on infant males\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 28,
"text": "The Tasmania Law Reform Institute released its recommendations for reform of Tasmanian law relative to male circumcision on 21 August 2012. The report makes fourteen recommendations for reform of Tasmanian law relative to male circumcision.",
"title": "Modern laws by country"
},
{
"paragraph_id": 29,
"text": "The Belgian Advisory Committee on Bioethics finds that circumcision is a radical operation, and that physical integrity of the child takes precedence over parents' belief systems.",
"title": "Modern laws by country"
},
{
"paragraph_id": 30,
"text": "In 2012, Le Soir reported a 21% increase in the amount of circumcisions in Belgium from 2006 and 2011. In the previous 25 years, one in three Belgian-born boys had allegedly been circumcised. A questionnaire to hospitals in Wallonia and Brussels showed that about 80 to 90% of the procedures had religious or cultural motives. The Ministry of Health stressed the importance of safe circumstances, physicians warned that \"no surgical procedure is without risk\" and that circumcision was \"not a necessary procedure\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 31,
"text": "In 2017, it was estimated that about 15% of Belgian men were circumcised. The incidence has been gradually rising: in 2002, about 17,800 boys or men underwent circumcision, which increased to almost 26,200 in 2016. The expenses of undergoing circumcision are covered by the National Institute for Disease and Disability Insurance (RIZIV/INAMI), costing about 2.7 million euros in 2016. After inquiries were submitted to the Belgian Bioethics Advisory Committee in early 2014, an ethics commission was set up to review the morality of covering the costs of medically unnecessary surgery through taxpayer money, especially considering that many taxpayers regard the practice as immoral. By July 2017, the commission reportedly reached consensus on discontinuing the financial coverage of non-medical circumcision, but was still debating whether to advise the government to institute a total ban of the practice. The commission's final (non-binding) recommendation, presented on 19 September 2017, was to cease public funding for non-medical circumcision, and to not circumcise anyone underage until they can consent or reject the procedure after being properly informed. This was in line with the 1990 Convention on the Rights of the Child, and mirrors the 2013 non-binding Parliamentary Assembly of the Council of Europe's resolution against underage non-therapeutic circumcision. However, Health Minister Maggie De Block rejected the commission's advice, arguing the RIZIV \"cannot know whether there is a medical motive or not\" when parents request a circumcision, and when they are denied a professional procedure, chances are parents will have a non-expert perform it, leading to worse results for the children. The Health Minister's response was received with mixed reactions.",
"title": "Modern laws by country"
},
{
"paragraph_id": 32,
"text": "The Canadian Paediatric Society does not recommend routine circumcision, finding that medical necessity has not been clearly established, and as such, that it should be deferred until the individual concerned is able to make his own choices.",
"title": "Modern laws by country"
},
{
"paragraph_id": 33,
"text": "According to the College of Physicians and Surgeons of British Columbia:",
"title": "Modern laws by country"
},
{
"paragraph_id": 34,
"text": "To date, the legality of infant male circumcision has not been tested in the Courts. It is thus assumed to be legal if it is performed competently, in the child's best interest, and after valid consent has been obtained.",
"title": "Modern laws by country"
},
{
"paragraph_id": 35,
"text": "At all times the physician must perform the procedure with competence and at all times, the parent and physician must act in the best interests of the child. Signed parental consent for any treatment is assumed to be valid if the parent understands the nature of the procedure and its associated risks and benefits. However, proxy consent by parents is now being questioned. Many believe it should be limited to consent for diagnosis and treatment of medical conditions, and that it is not relevant for non-therapeutic procedures.\"",
"title": "Modern laws by country"
},
{
"paragraph_id": 36,
"text": "Circumcision is legal in Denmark, and each year 1,000 to 2,000 boys are circumcised for non-medical reasons, the Danish Health Authority estimated in 2013, with most circumcisions being performed on Muslim or Jewish boys in private clinics or private homes. For boys below the age of 15, circumcision requires consent from the parents, while the boy can consent when he is 15 years or older. Circumcision is classified as an operation and reserved for doctors, though the responsible doctor can delegate the actual operation to non-medical person, as long as the doctor is present. The operation requires \"sufficient pain relief (analgesic) and sedation (Anesthesia)\" The doctor is responsible for having the necessary qualifications (both for the operation and the pain relief) and for being informed about the newest scientific developments in the area.",
"title": "Modern laws by country"
},
{
"paragraph_id": 37,
"text": "The current guidelines for non-medical circumcision are from 2013, and as of August 2020, a committee under the Danish Patient Health Authority are in the process of updating them. In August 2020, the Danish Society of Anaesthesiology and Intensive Care Medicine withdrew from the committee, because they disagreed with the Authority's opinion that local anaesthesia was sufficient, instead saying the scientific literature showed that general anaesthesia was necessary. Other professional organizations followed them, and according to DR, only the Authority and two private clinics that perform circumcisions remain in the committee.",
"title": "Modern laws by country"
},
{
"paragraph_id": 38,
"text": "The Danish population overwhelmingly support a ban on non-medical circumcision of boys below the age of 18. A 2020 survey measured the support at 86%, while surveys in 2018, 2016 and 2014 measured the support at 83%, 87% and 74%, respectively In 2018, a citizen's initiative calling for such a ban reached the threshold of 50.000 signatures to be put forward in the Folketing. It was subsequently found compliant with the Danish Constitution, in particularly §67 on religious freedom. The Danish Medical Association believes boys should decide for themselves after they turn 18 years old, but does not call for a ban. Politicians are hesitant in supporting a ban, with protection of religious freedom, in particular the Jewish practice of circumcision, and potential foreign policy and national security ramifications mentioned as some of the reasons. As of September 2020, the Social Democrats and Venstre, who together hold a majority in the Folketing, oppose a ban, while the Danish People's Party, the Socialist People's Party, Red-Green Alliance, The Alternative, The New Right and Liberal Alliance favour a ban. The Conservative and the Social Liberal Party have no official opinion on the question.",
"title": "Modern laws by country"
},
{
"paragraph_id": 39,
"text": "With a two-thirds majority against, the Folketing voted against a ban on circumcision in May 2021.",
"title": "Modern laws by country"
},
{
"paragraph_id": 40,
"text": "The Finnish Ombudsman for Equality finds that circumcising young boys without a medical reason is legally highly questionable, The Finnish Supreme Court found that non-therapeutic circumcision of boys is assault, and the Finnish Ombudsman for Children proposed that Finland should ban non-therapeutic circumcision of young boys:",
"title": "Modern laws by country"
},
{
"paragraph_id": 41,
"text": "The Deputy Ombudsman took the view that circumcising young boys, who are unable to give their consent, without a medical reason is highly questionable from a legal standpoint. … On 31 March 2016, the Supreme Court adopted two decisions that complement a previous precedent in which the Court found that the non-medical circumcision of boys constitutes an assault offence but is not punishable when it is considered to be in the best interests of the child. In 2015, the Finnish Ombudsman for Children Tuomas Kurttila proposed that Finland should enact an act prohibiting the non-medical circumcision of young boys.",
"title": "Modern laws by country"
},
{
"paragraph_id": 42,
"text": "In August 2006, a Finnish court ruled that the circumcision of a four-year-old boy arranged by his mother, who is Muslim, to be an illegal assault. The boy's father, who had not been consulted, reported the incident to the police. A local prosecutor stated that the prohibition of circumcision is not gender-specific in Finnish law. A lawyer for the Ministry of Social Affairs and Health stated that there is neither legislation nor prohibition on male circumcision, and that \"the operations have been performed on the basis of common law.\" The case was appealed and in October 2008 the Finnish Supreme Court ruled that the circumcision, \"carried out for religious and social reasons and in a medical manner, did not have the earmarks of a criminal offence. It pointed out in its ruling that the circumcision of Muslim boys is an established tradition and an integral part of the identity of Muslim men\". In 2008, the Finnish government was reported to be considering a new law to legalise circumcision if the practitioner is a doctor and if the child consents. In December 2011, Helsinki District Court said that the Supreme Court's decision does not mean that circumcision is legal for any non-medical reasons. The court referred to the Convention on Human rights and Biomedicine of the Council of Europe, which was ratified in Finland in 2010.",
"title": "Modern laws by country"
},
{
"paragraph_id": 43,
"text": "In February 2010, a Jewish couple were fined for causing bodily harm to their then infant son who was circumcised in 2008 by a mohel brought in from the UK. Normal procedure for persons of Jewish faith in Finland is to have a locally certified mohel who works in Finnish healthcare perform the operation. In the 2008 case, the infant was not anesthetized and developed complications that required immediate hospital care. The parents were ordered to pay 1500 euros in damages to their child.",
"title": "Modern laws by country"
},
{
"paragraph_id": 44,
"text": "In November 2020, the Finnish Parliament passed a new law on female genital mutilation. An earlier version of the draft law could also have criminalised nonmedical infant circumcision, but due to intense lobbying by several Islamic and Jewish organisations including the Central Council of Finnish Jewish Communities, Milah UK, and the European Jewish Congress, the wording was changed and instead, the law passed in Parliament now states that the issue of circumcision of boys should be \"clarified\" in the future.",
"title": "Modern laws by country"
},
{
"paragraph_id": 45,
"text": "The German Association of Pediatricians (BVKJ) finds no medical reason for non-therapeutic circumcision and that the AAP (2012) recommendation scientifically unsustainable, and that boys should have the same constitutional legal right to physical integrity as girls:",
"title": "Modern laws by country"
},
{
"paragraph_id": 46,
"text": "From a medical point of view, there is no reason to remove the intact foreskin of underage and non-consenting boys. ... The tip of the foreskin is richly supplied with blood by important vascular structures. The foreskin serves as a connecting channel for numerous important veins. Circumcision can contribute to erectile dysfunction by destroying these blood lines. Their removal can, as the accounts of many sufferers show, lead to considerable restrictions on the sexual experience and mental stress. The frequently cited AAP opinion (DOI: 10.1542 / peds.2012-1989 Pediatrics \"originally published online 27 Aug. 2012) contradicts earlier statements by the same organization without being able to invoke new research findings. This AAP opinion is now considered scientifically unsustainable by almost all other pediatric societies and associations in the world. ... The WHO recommendation on prophylactic circumcision also applies only to sexually mature sexually active men in low-hygiene countries and cannot be used as a basis for the prophylactic circumcision underage boys. ... Worldwide, no medical professional society, not even the AAP, sees such a significant advantage in the general circumcision of young boys that it generally recommends them. ... Religious regulations must not influence doctors in their care for their patients - and underage children deserve our very special care here. According to our sense of justice, boys have the same constitutional legal right to physical integrity as girls; they must not be disadvantaged because of their gender (Article 3 of the Basic Law). Parental rights and religious freedom end where the physical integrity of a child who is under the age of consent is not affected (Article 2 of the Basic Law) without a clear medical indication.",
"title": "Modern laws by country"
},
{
"paragraph_id": 47,
"text": "In October 2006, a Turkish national who performed ritual circumcisions on seven boys was convicted of causing dangerous bodily harm by the state court in Düsseldorf.",
"title": "Modern laws by country"
},
{
"paragraph_id": 48,
"text": "In September 2007, a Frankfurt am Main appeals court found that the circumcision of an 11-year-old boy without his approval was an unlawful personal injury. The boy, whose parents were divorced, was visiting his Muslim father during a vacation when his father forced him to be ritually circumcised. The boy had planned to sue his father for €10,000.",
"title": "Modern laws by country"
},
{
"paragraph_id": 49,
"text": "In May 2012, the Cologne regional appellate court ruled that religious circumcision of male children amounts to bodily injury, and is a criminal offense in the area under its jurisdiction. The decision based on the article \"Criminal Relevance of Circumcising Boys. A Contribution to the Limitation of Consent in Cases of Care for the Person of the Child\" published by Holm Putzke, a German law professor at the University of Passau. The court arrived at its judgment by application of the human rights provisions of the Basic Law, a section of the Civil Code, and some sections of the Criminal Code to non-therapeutic circumcision of male children. Some observers said it could set a legal precedent that criminalizes the practice. Jewish and Muslim groups were outraged by the ruling, viewing it as trampling on freedom of religion.",
"title": "Modern laws by country"
},
{
"paragraph_id": 50,
"text": "The German ambassador to Israel, Andreas Michaelis, told Israeli lawmakers that Germany was working to resolve the issue and that it does not apply at a national level, but instead only to the local jurisdiction of the court in Cologne. The Council of the Coordination of Muslims in Germany condemned the ruling, stating that it is \"a serious attack on religious freedom\". Ali Kizilkaya, a spokesman of the council, stated that, \"The ruling does not take everything into account, religious practice concerning circumcision of young Muslims and Jews has been carried out over the millennia on a global level.\" The Roman Catholic archbishop of Aachen, Heinrich Mussinghoff, said that the ruling was \"very surprising\", and the contradiction between \"basic rights on freedom of religion and the well-being of the child brought up by the judges is not convincing in this very case\". Hans Ulrich Anke, the head of the Protestant Church in Germany, said the ruling should be appealed since it did not \"sufficiently\" consider the religious significance of the rite. A spokesman, Steffen Seibert, for German Chancellor Angela Merkel stated that Jewish and Muslim communities will be free to practice circumcision responsibly, and the government would find a way around the local ban in Cologne. The spokesman stated \"For everyone in the government it is absolutely clear that we want to have Jewish and Muslim religious life in Germany. Circumcision carried out in a responsible manner must be possible in this country without punishment.\"",
"title": "Modern laws by country"
},
{
"paragraph_id": 51,
"text": "In July 2012, a group of rabbis, imams, and others said that they view the ruling against circumcision \"an affront on our basic religious and human rights\". The joint statement was signed by leaders of groups including Germany's Turkish-Islamic Union for Religious Affairs, the Islamic Center Brussels, the Rabbinical Centre of Europe, the European Jewish Parliament and the European Jewish Association, who met with members of European Parliament from Germany, Finland, Belgium, Italy, and Poland. European rabbis, who urged Jews to continue circumcision, planned further talks with Muslim and Christian leaders to determine how they can oppose the ban together. The Jewish Hospital of Berlin suspended the practice of male circumcision. On 19 July 2012, a joint resolution of the CDU/CSU, SPD and FDP factions in the Bundestag requesting the executive branch to draft a law permitting circumcision of boys to be performed without unnecessary pain in accordance with best medical practice carried with a broad majority.",
"title": "Modern laws by country"
},
{
"paragraph_id": 52,
"text": "The New York Times reported that the German Medical Association \"condemned the ruling for potentially putting children at risk by taking the procedure out of the hands of doctors, but it also warned surgeons note to perform circumcisions for religious reasons until legal clarity was established\". The ruling was supported by Deutsche Kinderhilfe, a German child rights organization, which asked for a two-year moratorium to discuss the issue and pointed out that religious circumcision may contravene the Convention on the Rights of the Child (Article 24.3: \"States Parties shall take all effective and appropriate measures with a view to abolishing traditional practices prejudicial to the health of children.\").",
"title": "Modern laws by country"
},
{
"paragraph_id": 53,
"text": "The German Academy for Pediatric and Adolescent Medicine (Deutsche Akademie für Kinder- und Jugendmedizin e.V., DAKJ), the German Association for Pediatric Surgery (Deutsche Gesellschaft für Kinderchirurgie, DGKCH) and the Professional Association of Pediatric and Adolescent Physicians (Berufsverband der Kinder- und Jugendärzte) took a firm stand against non-medical routine infant circumcision.",
"title": "Modern laws by country"
},
{
"paragraph_id": 54,
"text": "In July, in Berlin, a criminal complaint was lodged against Rabbi Yitshak Ehrenberg for \"causing bodily harm\" by performing religious circumcision, and for vocal support of the continuation of the practice. In September, the prosecutors dismissed the complaint, concluding that \"there is no proof to establish that the rabbi's conduct met the 'condition of a criminal' violation\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 55,
"text": "In September, Reuters reported \"Berlin's senate said doctors could legally circumcise infant boys for religious reasons in its region, given certain conditions.\"",
"title": "Modern laws by country"
},
{
"paragraph_id": 56,
"text": "On 12 December 2012, following a series of hearings and consultations, the Bundestag adopted the proposed law explicitly permitting non-therapeutic circumcision to be performed under certain conditions; it is now §1631(d) in the German Civil Code. The vote tally was 434 ayes, 100 noes, and 46 abstentions. Following approval by the Bundesrat and signing by the Bundespräsident, the new law became effective on 28 December 2012 a day after its publication in the Federal Gazette.",
"title": "Modern laws by country"
},
{
"paragraph_id": 57,
"text": "In May 2005, Iceland amended its General Penal Code to criminalise female genital mutilation",
"title": "Modern laws by country"
},
{
"paragraph_id": 58,
"text": "Any person who, in an assault, causes physical injury or damage to the health of a girl child or woman by removing her sexual organs, partly or in their entirety, shall be imprisoned for up to 6 years. If the assault results in serious physical injury or health damage, or in death, or if it is considered particularly reprehensible due to the method used, punishment for the offence shall take the form of up to 16 years' imprisonment",
"title": "Modern laws by country"
},
{
"paragraph_id": 59,
"text": "In February 2018, the Progressive Party proposed a bill that would change the words \"girl child\" to \"child\" and \"her sexual organs\" to \"[their] sexual organs\", thereby making Iceland the first European country to ban male circumcision for non-medical reasons. The bill was ultimately put on hold later that year following pressure from the United States, Israel, and various lobbyist groups.",
"title": "Modern laws by country"
},
{
"paragraph_id": 60,
"text": "In October 2005 a Nigerian man was cleared of a charge of reckless endangerment over the death of a baby from hemorrhage and shock after he had circumcised the child. The judge directed the jury not to \"bring what he called their white western values to bear when they were deciding this case\" and effectively imposed a not guilty verdict on the jury. After deliberating for an hour and a half they found the defendant not guilty.",
"title": "Modern laws by country"
},
{
"paragraph_id": 61,
"text": "In Israel, Jewish circumcision is entirely legal. The circumcision rate is very high in Israel, although some limited data suggests the practice is slowly declining. According to an online survey by the parents' portal Mamy in 2006, the rate was 95%, while earlier estimates put it at 98–99%. Ben Shalem, an organisation dedicated to the abolition of circumcision, petitioned the Supreme Court in 1999 on the grounds that circumcision violated human dignity, children's rights and criminal law. The petition was rejected. In 2013, a Rabbinical court in Israel ordered a mother in the midst of divorce proceedings to circumcise her son in accordance with the father's wishes, or pay a fine of 500 Israeli Shekel for every day that the child is not circumcised. She appealed against the Rabbinical court ruling and the High Court ruled in her favour stating, among other considerations, the basic right of freedom from religion.",
"title": "Modern laws by country"
},
{
"paragraph_id": 62,
"text": "The Royal Dutch Medical Association (KNMG) finds non-therapeutic circumcision of male minors to be in conflict with children's right to autonomy and physical integrity, and that there are good reasons for its legal prohibition, as exists for female genital mutilation:",
"title": "Modern laws by country"
},
{
"paragraph_id": 63,
"text": "In May 2008 a father who had his two sons, aged 3 and 6, circumcised against the will of their mother was found not guilty of abuse as the circumcision was performed by a physician and due to the court's restraint in setting a legal precedent; instead he was given a 6-week suspended jail sentence for taking the boys away from their mother against her will.",
"title": "Modern laws by country"
},
{
"paragraph_id": 64,
"text": "The parquet of the Supreme Court of the Netherlands made an elaborate statement on the legal status of circumcision on 5 July 2011 in the course of a criminal case. First, the parquet notes that there is no law that specifically prohibits the circumcision of boys, nor that the practice falls under the more general crime of (zware) mishandeling ('(grave) assault'). \"Genital mutilation of girls in any case undoubtedly falls under (zware) mishandeling (Art. 300–303 Dutch Criminal Code). Whereas most forms of genital cutting of girls are generally marked as genital mutilation, a similar communis opinio regarding genital cutting of boys does not yet exist so far.\" The Supreme Court acknowledged that society's attitudes on genital cutting of boys had been gradually shifting over the course of years, and that \"the increasing concern [in the medical world] about the harm and the risk of complications during a circumcision is indeed relevant\", but that overall there were not enough reasons yet to proceed to criminalisation. Neither could intentional infliction of grave bodily harm (Art. 82 Dutch Criminal Code) be applied to the normal circumstances of a competently and hygienically performed circumcision in a clinic. And because young children are incapable of exercising the right to self-determination, parents ought to do this on their behalf. They can both request a circumcision to be performed, as well as consent to it being performed, on the grounds of their parental authority. However, it is important that both parents consent to the procedure.",
"title": "Modern laws by country"
},
{
"paragraph_id": 65,
"text": "The Norwegian Ombudsman for Children (Barneombudet) opposes circumcising children, and stated on 29 September 2013 that it is right to wait until children are old enough to decide for themselves:",
"title": "Modern laws by country"
},
{
"paragraph_id": 66,
"text": "The Ombudsman for Children is opposed to having children circumcised when they are so small that they are unable to express their views on it. Being circumcised is something that cannot be changed. Then we think it is right to wait until the children are old enough to decide for themselves.",
"title": "Modern laws by country"
},
{
"paragraph_id": 67,
"text": "In June 2012, the centre-right Centre Party proposed a ban on circumcision on males under eighteen, after an Oslo infant died in May following a circumcision.",
"title": "Modern laws by country"
},
{
"paragraph_id": 68,
"text": "A bill on ritual circumcision of boys was passed (against two votes) in the Norwegian Parliament in June 2014, with the new law going into effect on 1 January 2015. This law explicitly allows Jews to practice brit milah and obligates the Norwegian Health Care regions to offer the Muslim minority a safe and affordable procedure. Local anaesthesia needs to be applied and a licensed physician needs to be present at the circumcision, which hospitals started to perform in March 2015.",
"title": "Modern laws by country"
},
{
"paragraph_id": 69,
"text": "In May 2017, the right-wing Progress Party proposed to ban circumcision for males under sixteen.",
"title": "Modern laws by country"
},
{
"paragraph_id": 70,
"text": "The Children's Act 2005 makes the circumcision of male children under 16 unlawful except for religious or medical reasons. In the Eastern Cape province the Application of Health Standards in Traditional Circumcision Act, 2001, regulates traditional circumcision, which causes the death or mutilation of many youths by traditional surgeons each year. Among other provisions, the minimum age for circumcision is age 18.",
"title": "Modern laws by country"
},
{
"paragraph_id": 71,
"text": "In 2004, a 22-year-old Rastafarian convert was forcibly circumcised by a group of Xhosa tribal elders and relatives. When he first fled, two police returned him to those who had circumcised him. In another case, a medically circumcised Xhosa man was forcibly recircumcised by his father and community leaders. He laid a charge of unfair discrimination on the grounds of his religious beliefs, seeking an apology from his father and the Congress of Traditional Leaders of South Africa. According to South African newspapers, the subsequent trial became \"a landmark case around forced circumcision\". In October 2009, the Eastern Cape High Court at Bhisho (sitting as an Equality Court) clarified that circumcision is unlawful unless done with the full consent of the initiate.",
"title": "Modern laws by country"
},
{
"paragraph_id": 72,
"text": "The Slovenian Human Rights Ombudsman found in February 2012, after consulting various relevant expert bodies and studying relevant constitutional and legal stipulations, that circumcision for non-medical reasons is a violation of children's rights, that ritual circumcision for religious reasons is unacceptable in Slovenia for both legal and ethical reasons and should not be performed by doctors:",
"title": "Modern laws by country"
},
{
"paragraph_id": 73,
"text": "We asked the Higher Academic College for Surgery for professional doctrine in this area (...). The College did not answer all our questions, but sent us the conclusion that circumcision of boys for non-medical reasons is not medically justified.",
"title": "Modern laws by country"
},
{
"paragraph_id": 74,
"text": "The Medical Ethics Commission of the Republic of Slovenia sent us a longer response, from which we will summarise its principled opinion, \"that ritual circumcision of boys for religious reasons is unacceptable in our country for legal and ethical reasons, and doctors should not perform it\". In addition to the unacceptability of circumcision from an ethical point of view, the Commission also emphasises that it is also unacceptable that an already performed procedure is falsely shown as medically indicated in the medical documentation.",
"title": "Modern laws by country"
},
{
"paragraph_id": 75,
"text": "We asked the Health Insurance Institute of Slovenia for information on the payment for circumcision (...) which, according to the institute, is EUR 34.88 per treatment. If the intervention is not medically indicated, the service is not covered by health insurance and must be paid for by the patient or their representatives. (...)",
"title": "Modern laws by country"
},
{
"paragraph_id": 76,
"text": "It is clear from Article 56 (special protection of children) and Article 35 (inviolability of physical and mental integrity of everyone) of the Slovenian Constitution that any interference with the physical integrity of the child is limited, and can only be justified by medical reasons. (...) However, if the circumcision of a child is not medically indicated, but is only the result of the beliefs of its parents (religious or otherwise), such an intervention has no legal basis. (...) The Patient's Rights Act stipulates that, as a rule, children have the capacity to consent after the age of 15, unless the doctor assesses that they are not capable of doing so based on their maturity. By law, a child under the age of 15 is generally not capable of giving consent, and even in these cases the doctor can assess that it is capable of doing so. The law specifically stipulates that the child's opinion regarding treatment is taken into account to the greatest extent possible, if it is able to express the opinion and if it understands its meaning and consequences.",
"title": "Modern laws by country"
},
{
"paragraph_id": 77,
"text": "(...) While parents have some rights to conform their children's education to their religious and ethical beliefs (as long as these do not violate the rights of the children themselves) under Article 41.3 of the Constitution, in our view, the guidelines on religious education do not include the right of parents to decide to interfere with their child's body solely because of their religious beliefs. Therefore, we believe that circumcision for non-medical reasons is not admissible and represents an illegal intervention in the child's body, thereby violating its rights.",
"title": "Modern laws by country"
},
{
"paragraph_id": 78,
"text": "In 2001, the Parliament of Sweden enacted a law allowing only persons certified by the National Board of Health to circumcise infants. It requires a medical doctor or an anesthesia nurse to accompany the circumciser and for anaesthetic to be applied beforehand. After the first two months of life circumcisions can only be performed by a physician. The stated purpose of the law was to increase the safety of the procedure.",
"title": "Modern laws by country"
},
{
"paragraph_id": 79,
"text": "Swedish Jews and Muslims objected to the law, and in 2001, the World Jewish Congress called it \"the first legal restriction on Jewish religious practice in Europe since the Nazi era\". The requirement for an anaesthetic to be administered by a medical professional is a major issue, and the low degree of availability of certified professionals willing to conduct circumcision has also been subject to criticism. According to a survey, two out of three paediatric surgeons said they refuse to perform non-therapeutic circumcision, and less than half of all county councils offer it in their hospitals. However, in 2006, the U.S. State Department stated, in a report on Sweden, that most Jewish mohels had been certified under the law and 3000 Muslim and 40–50 Jewish boys were circumcised each year. An estimated 2000 of these are performed by persons who are neither physicians nor have officially recognised certification.",
"title": "Modern laws by country"
},
{
"paragraph_id": 80,
"text": "The Swedish National Board of Health and Welfare reviewed the law in 2005 and recommended that it be maintained, but found that the law had failed with regard to the intended consequence of increasing the safety of circumcisions. A later report by the Board criticised the low level of availability of legal circumcisions, partly due to reluctance among health professionals. To remedy this, the report suggested a new law obliging all county councils to offer non-therapeutic circumcision in their hospitals, but this was later abandoned in favour of a non-binding recommendation.",
"title": "Modern laws by country"
},
{
"paragraph_id": 81,
"text": "In January 2014, the Swedish Medical Association (SLF) found no known medical benefits to circumcision of children, and thus strong reasons to wait until the boy is old and mature enough (12 or 13 years old) to give informed consent, aiming at ceasing all non-medically justified circumcision without prior consent:",
"title": "Modern laws by country"
},
{
"paragraph_id": 82,
"text": "The issue of circumcision of boys has long been debated both in Sweden and in other countries. The Ethics and Responsibility Council (EAR) believes that the goal is to cease non-medically justified circumcision without prior consent. There are no known medical benefits to the [circumcision] intervention in children. Even if the procedure is performed within the healthcare system, there is, however, a risk of serious complications. Therefore, there are strong reasons to wait for the intervention until the person who is the subject of the measure has reached such age and maturity that he can give informed consent. (...)",
"title": "Modern laws by country"
},
{
"paragraph_id": 83,
"text": "In October 2018, the right-wing populist Sweden Democrats party submitted a draft motion to parliament calling for a ban. At the annual conference of the Centre Party in September 2019, 314 to 166 commissioners voted in favor of prohibiting boys' circumcision. Several Jewish and Islamic organisations voiced their opposition to a potential ban. The Left Party has also expressed support for a prohibition on circumcising boys before the age of 18; other parties have so far not backed a potential ban, though the Green Party found the practice \"problematic\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 84,
"text": "According to a July 2012 survey by 20 Minuten involving 8,000 participants, 64% of the Swiss population wanted religious circumcision to be banned. 67% of men and 56% of women were in favour. 93% of Muslim respondents and 75% of Jewish respondents opposed a ban. Over 25% of male respondents were themselves circumcised; 96% of Muslim men and 89% of Jewish men in the survey said they were circumcised, while 20% of circumcised men belonged to neither religion. Almost a third of circumcised men favoured a ban, with 12% wishing in hindsight that they had not been circumcised.",
"title": "Modern laws by country"
},
{
"paragraph_id": 85,
"text": "Male circumcision has traditionally been presumed to be legal under British law, however some authors have argued that there is no solid foundation for this view in English law.",
"title": "Modern laws by country"
},
{
"paragraph_id": 86,
"text": "While legal, the British Medical Association finds it ethically unacceptable to circumcise a child or young person, either with or without competence, who refuses the procedure, irrespective of the parents' wishes, and that parental preference alone does not constitute sufficient grounds for performing NTMC on a child unable to express his own view:",
"title": "Modern laws by country"
},
{
"paragraph_id": 87,
"text": "The BMA considers that the evidence concerning health benefit from NTMC (non-therapeutic male circumcision) is insufficient for this alone to be a justification for boys undergoing circumcision. In addition, some of the anticipated health benefits of male circumcision can be realised by other means – for example, condom use. … There are clearly risks inherent in any surgical procedure: for example, pain, bleeding, surgical mishap and complications of anaesthesia. With NTMC there are associated medical and psychological risks … The BMA cannot envisage a situation in which it is ethically acceptable to circumcise a child or young person, either with or without competence, who refuses the procedure, irrespective of the parents' wishes. … Parental preference alone does not constitute sufficient grounds for performing NTMC on a child unable to express his own view. … Furthermore, the harm of a person not having the opportunity to choose not to be circumcised or choose not to follow the traditions of his parents must also be taken into account, together with the damage that can be done to the individual's relationship with his parents and the medical profession, if he feels harmed by an irreversible non-therapeutic procedure.",
"title": "Modern laws by country"
},
{
"paragraph_id": 88,
"text": "The passage of the Human Rights Act 1998 has led to some speculation that the lawfulness of the circumcision of male children is unclear.",
"title": "Modern laws by country"
},
{
"paragraph_id": 89,
"text": "One 1999 case, Re \"J\" (child's religious upbringing and circumcision) said that circumcision in Britain required the consent of all those with parental responsibility (however this comment was not part of the reason for the judgement and therefore is not legally binding), or the permission of the court, acting for the best interests of the child, and issued an order prohibiting the circumcision of a male child of a non-practicing Muslim father and non-practicing Christian mother with custody. The reasoning included evidence that circumcision carried some medical risk; that the operation would be likely to weaken the relationship of the child with his mother, who strongly objected to circumcision without medical necessity; that the child may be subject to ridicule by his peers as the odd one out and that the operation might irreversibly reduce sexual pleasure, by permanently removing some sensory nerves, even though cosmetic foreskin restoration might be possible. The court did not rule out circumcision against the consent of one parent. It cited a hypothetical case of a Jewish mother and an agnostic father with a number of sons, all of whom, by agreement, had been circumcised as infants in accordance with Jewish laws; the parents then have another son who is born after they have separated; the mother wishes him to be circumcised like his brothers; the father for no good reason, refuses his agreement. In such a case, a decision in favor of circumcision was said to be likely.",
"title": "Modern laws by country"
},
{
"paragraph_id": 90,
"text": "In 2001 the General Medical Council had found a doctor who had botched circumcision operations guilty of abusing his professional position and that he had acted \"inappropriately and irresponsibly\", and struck him off the register. A doctor who had referred patients to him, and who had pressured a mother into agreeing to the surgery, was also condemned. He was put on an 18-month period of review and retraining, and was allowed to resume unrestricted practice as a doctor in March 2003, after a committee found that he had complied with conditions it placed on him. According to the Northern Echo, he \"told the committee he has now changed his approach to circumcision referrals, accepting that most cases can be treated without the need for surgery\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 91,
"text": "Fox and Thomson (2005) argue that consent cannot be given for non-therapeutic circumcision. They say there is \"no compelling legal authority for the common view that circumcision is lawful\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 92,
"text": "In 2005 a Muslim man had his son circumcised against the wishes of the child's mother who was the custodial parent.",
"title": "Modern laws by country"
},
{
"paragraph_id": 93,
"text": "In 2009 it was reported that a 20-year-old man whose father had him ritually circumcised as a baby is preparing to sue the doctor who circumcised him. This is believed to be the first time a person who was circumcised as an infant has made a claim in the UK. The case is expected to be heard in 2010.",
"title": "Modern laws by country"
},
{
"paragraph_id": 94,
"text": "In a 2015 case regarding female circumcision, a judge concluded that non-therapeutic circumcision of male children is a \"significant harm\". In 2016, the Family Court in Exeter ruled that a Muslim father could not have his two sons (aged 6 and 4) circumcised after their mother disagreed. Mrs Justice Roberts declared that the boys should first grow old enough \"to the point where each of the boys themselves will make their individual choices once they have the maturity and insight to appreciate the consequences and longer-term effects of the decisions which they reach\".",
"title": "Modern laws by country"
},
{
"paragraph_id": 95,
"text": "In June 2017, Nottinghamshire Police arrested three people on suspicion of \"conspiracy to commit grievous bodily harm\". The alleged victim was purportedly circumcised while in its Muslim father's care at his grandparents' in July 2013 without the consent of his mother (a non-religious white British woman who conceived the child after a casual affair with the man, whom she had separated from after the incident). The mother first contacted social services and eventually the police in November 2014. The police initially dismissed the complaint, but after the mother got help from the anti-circumcision group Men Do Complain and leading human rights lawyer Saimo Chahal QC, they reopened the case, and ended up arresting three suspects involved. In November 2017, the Crown Prosecution Service explained to the mother in a letter they were not going to prosecute the doctor, who claimed he was unaware of the mother's non-consent. However, Chahal appealed this decision, which she said \"lacks any semblance of a considered and reasoned decision and is flawed and irrational\", and threatened to bring the case to court. The by then 29-year-old mother finally sued the doctor in April 2018. Niall McCrae, mental health expert from King's College London, argued that this case could mean \"the end of ritual male circumcision in the UK\", drawing comparisons with earlier rulings against female genital mutilation.",
"title": "Modern laws by country"
},
{
"paragraph_id": 96,
"text": "Circumcision of adults who grant personal informed consent for the surgical operation is legal.",
"title": "Modern laws by country"
},
{
"paragraph_id": 97,
"text": "In the United States, non-therapeutic circumcision of male children has long been assumed to be lawful in every jurisdiction provided that one parent grants surrogate informed consent. Adler (2013) has recently challenged the validity of this assumption. As with every country, doctors who circumcise children must take care that all applicable rules regarding informed consent and safety are satisfied.",
"title": "Modern laws by country"
},
{
"paragraph_id": 98,
"text": "While anti-circumcision groups have occasionally proposed legislation banning non-therapeutic child circumcision, it has not been supported in any legislature. After a failed attempt to adopt a local ordinance banning circumcision on a San Francisco ballot, the state of California enacted in October 2011 a law protecting circumcision from local attempts to ban the practice.",
"title": "Modern laws by country"
},
{
"paragraph_id": 99,
"text": "In 2012, New York City required those performing metzitzah b'peh, the oral suction of the open circumcision wound required by Hasidim, to obey stringent consent requirements, including documentation. Agudath Israel of America and other Jewish groups have planned to sue the city in response.",
"title": "Modern laws by country"
},
{
"paragraph_id": 100,
"text": "Disputes between parents",
"title": "Modern laws by country"
},
{
"paragraph_id": 101,
"text": "Occasionally the courts are asked to make a ruling when parents cannot agree on whether or not to circumcise a child.",
"title": "Modern laws by country"
},
{
"paragraph_id": 102,
"text": "In January 2001 a dispute between divorcing parents in New Jersey was resolved when the mother, who sought to have the boy circumcised withdrew her request. The boy had experienced two instances of foreskin inflammation and she wanted to have him circumcised. The father, who had experienced a traumatic circumcision as a child, objected and they turned to the courts for a decision. The Medical Society of New Jersey and the Urological Society of New Jersey both opposed any court ordered medical treatment. As the parties came to an agreement, no precedent was set. In June 2001 a Nevada court settled a dispute over circumcision between two parents but put a strict gag order on the terms of the settlement. In July 2001 a dispute between parents in Kansas over circumcision was resolved when the mother's request to have the infant circumcised was withdrawn. In this case the father opposed circumcision while the mother asserted that not circumcising the child was against her religious beliefs. (The woman's pastor had stated that circumcision was \"important\" but was not necessary for salvation.) On 24 July 2001 the parents reached agreement that the infant would not be circumcised.",
"title": "Modern laws by country"
},
{
"paragraph_id": 103,
"text": "On 14 July 2004 a mother appealed to the Missouri Supreme Court to prevent the circumcision of her son after a county court and the Court of Appeals had denied her a writ of prohibition. However, in early August 2004, before the Supreme Court had given its ruling, the father, who had custody of the boy, had him circumcised.",
"title": "Modern laws by country"
},
{
"paragraph_id": 104,
"text": "In October 2006 a judge in Chicago granted an injunction blocking the circumcision of a 9-year-old boy. In granting the injunction the judge stated that \"the boy could decide for himself whether to be circumcised when he turns 18.\"",
"title": "Modern laws by country"
},
{
"paragraph_id": 105,
"text": "In November 2007, the Oregon Supreme Court heard arguments from a divorced Oregon couple over the circumcision of their son. The father wanted his son, who turned 13 on 2 March 2008, to be circumcised in accordance with the father's religious views; the child's mother opposes the procedure. The parents dispute whether the boy is in favor of the procedure. A group opposed to circumcision filed briefs in support of the mother's position, while some Jewish groups filed a brief in support of the father. On 25 January 2008, the Court returned the case to the trial court with instructions to determine whether the child agrees or objects to the proposed circumcision. The father appealed to the US Supreme Court to allow him to have his son circumcised but his appeal was rejected. The case then returned to the trial court. When the trial court interviewed the couple's son, now 14 years old, the boy stated that he did not want to be circumcised. This also provided the necessary circumstances to allow the boy to change residence to live with his mother. The boy was not circumcised.",
"title": "Modern laws by country"
},
{
"paragraph_id": 106,
"text": "Other disputes",
"title": "Modern laws by country"
},
{
"paragraph_id": 107,
"text": "In September 2004 the North Dakota Supreme Court rejected a mother's attempt to prosecute her doctor for circumcising her child without fully informing her of the consequences of the procedure. The judge and jury found that the plaintiffs were adequately informed of possible complications, and the jury further found that it is not incumbent on the doctors to describe every \"insignificant\" risk.",
"title": "Modern laws by country"
},
{
"paragraph_id": 108,
"text": "In March 2009 a Fulton County, GA, State Court jury awarded $2.3 million in damages to a 4-year-old boy and his mother for a botched circumcision in which too much tissue was removed causing permanent disfigurement.",
"title": "Modern laws by country"
},
{
"paragraph_id": 109,
"text": "In August 2010 an eight-day-old boy was circumcised in a Florida hospital against the stated wishes of the parents. The hospital admitted that the boy was circumcised by mistake; the mother has sued the hospital and the doctor involved in the case.",
"title": "Modern laws by country"
}
] | Laws restricting, regulating, or banning circumcision, some dating back to ancient times, have been enacted in many countries and communities. In modern states, circumcision is generally presumed to be legal, but laws pertaining to assault or child custody have been applied in cases involving circumcision. In the case of non-therapeutic circumcision of children, proponents of laws in favor of the procedure often point to the rights of the parents or practitioners, namely the right of freedom of religion. Those against the procedure point to the boy's right of freedom from religion. In several court cases, judges have pointed to the irreversible nature of the act, the grievous harm to the boy's body, and the right to self-determination, and bodily integrity. | 2002-02-25T15:51:15Z | 2023-12-30T00:21:19Z | [
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7,449 | Called to Common Mission | Called to Common Mission (CCM) is an agreement between The Episcopal Church (ECUSA) and the Evangelical Lutheran Church in America (ELCA) in the United States, establishing full communion between them. It was ratified by the ELCA in 1999, the ECUSA in 2000, after the narrow failure of a previous agreement. Its principal author on the Episcopal side was theological professor J. Robert Wright. Under the agreement, they recognize the validity of each other's baptisms and ordinations. The agreement provided that the ELCA would accept the historical episcopate and the "threefold ministry" of bishop - priest (or pastor) - deacon with respect to ministers of communicant churches serving ELCA congregations; the installation of the ELCA presiding bishop was performed through the laying on of hands by Lutheran bishops in the historic episcopate. This provision was opposed by some in the ELCA, which after its founding merger in 1988, held a lengthy study of the ministry which was undertaken with divided opinions. In response to concerns about the meaning of the CCM, synod bishops in the ELCA drafted the Tucson resolution which presented the official ELCA position. It made clear that there is no requirement to ordain deacons or accept their ministry. It also provided assurance that the ELCA did not and was not required by CCM to change its own theological stance.
Lutheran churches of Scandinavian origin, such as the Church of Sweden and Church in Kenya, affirm apostolic succession and are in the historical episcopate; nevertheless, some within the ELCA argued that the historical episcopate would contradict the doctrine that the church exists wherever the Word of God is preached and sacraments are practiced. The traditional ELCA doctrine is affirmed by the Tucson resolution. Others objected on the grounds that adopting the Episcopalian / Anglican view on priestly orders and hierarchical structure was contrary to the Evangelical Lutheran concept of the "priesthood of all believers", which holds that all Christians stand on equal footing before God. They argued that the Old Covenant required a priest to mediate between God and humanity, but that New Covenant explicitly abolishes the need for priestly role by making every Christian a priest with direct access to God's grace. The Tucson resolution explained that the ELCA had not adopted the Episcopal view, but ECUSA or Reformed ordinands accepted by ELCA congregations would follow ELCA practice. Still others objected because of the implied directive that the use of a lay presidency would be abolished. This was a particularly issue for rural congregations that periodically "called" a congregation member to conduct communion services consecrating the elements (of bread and wine for service) in the interim period or with the absence of ordained clergy (pastor). The Tucson resolution explicitly affirmed the continued use of lay ministry. | [
{
"paragraph_id": 0,
"text": "Called to Common Mission (CCM) is an agreement between The Episcopal Church (ECUSA) and the Evangelical Lutheran Church in America (ELCA) in the United States, establishing full communion between them. It was ratified by the ELCA in 1999, the ECUSA in 2000, after the narrow failure of a previous agreement. Its principal author on the Episcopal side was theological professor J. Robert Wright. Under the agreement, they recognize the validity of each other's baptisms and ordinations. The agreement provided that the ELCA would accept the historical episcopate and the \"threefold ministry\" of bishop - priest (or pastor) - deacon with respect to ministers of communicant churches serving ELCA congregations; the installation of the ELCA presiding bishop was performed through the laying on of hands by Lutheran bishops in the historic episcopate. This provision was opposed by some in the ELCA, which after its founding merger in 1988, held a lengthy study of the ministry which was undertaken with divided opinions. In response to concerns about the meaning of the CCM, synod bishops in the ELCA drafted the Tucson resolution which presented the official ELCA position. It made clear that there is no requirement to ordain deacons or accept their ministry. It also provided assurance that the ELCA did not and was not required by CCM to change its own theological stance.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Lutheran churches of Scandinavian origin, such as the Church of Sweden and Church in Kenya, affirm apostolic succession and are in the historical episcopate; nevertheless, some within the ELCA argued that the historical episcopate would contradict the doctrine that the church exists wherever the Word of God is preached and sacraments are practiced. The traditional ELCA doctrine is affirmed by the Tucson resolution. Others objected on the grounds that adopting the Episcopalian / Anglican view on priestly orders and hierarchical structure was contrary to the Evangelical Lutheran concept of the \"priesthood of all believers\", which holds that all Christians stand on equal footing before God. They argued that the Old Covenant required a priest to mediate between God and humanity, but that New Covenant explicitly abolishes the need for priestly role by making every Christian a priest with direct access to God's grace. The Tucson resolution explained that the ELCA had not adopted the Episcopal view, but ECUSA or Reformed ordinands accepted by ELCA congregations would follow ELCA practice. Still others objected because of the implied directive that the use of a lay presidency would be abolished. This was a particularly issue for rural congregations that periodically \"called\" a congregation member to conduct communion services consecrating the elements (of bread and wine for service) in the interim period or with the absence of ordained clergy (pastor). The Tucson resolution explicitly affirmed the continued use of lay ministry.",
"title": ""
}
] | Called to Common Mission (CCM) is an agreement between The Episcopal Church (ECUSA) and the Evangelical Lutheran Church in America (ELCA) in the United States, establishing full communion between them. It was ratified by the ELCA in 1999, the ECUSA in 2000, after the narrow failure of a previous agreement. Its principal author on the Episcopal side was theological professor J. Robert Wright. Under the agreement, they recognize the validity of each other's baptisms and ordinations. The agreement provided that the ELCA would accept the historical episcopate and the "threefold ministry" of bishop - priest - deacon with respect to ministers of communicant churches serving ELCA congregations; the installation of the ELCA presiding bishop was performed through the laying on of hands by Lutheran bishops in the historic episcopate. This provision was opposed by some in the ELCA, which after its founding merger in 1988, held a lengthy study of the ministry which was undertaken with divided opinions. In response to concerns about the meaning of the CCM, synod bishops in the ELCA drafted the Tucson resolution which presented the official ELCA position. It made clear that there is no requirement to ordain deacons or accept their ministry. It also provided assurance that the ELCA did not and was not required by CCM to change its own theological stance. Lutheran churches of Scandinavian origin, such as the Church of Sweden and Church in Kenya, affirm apostolic succession and are in the historical episcopate; nevertheless, some within the ELCA argued that the historical episcopate would contradict the doctrine that the church exists wherever the Word of God is preached and sacraments are practiced. The traditional ELCA doctrine is affirmed by the Tucson resolution. Others objected on the grounds that adopting the Episcopalian / Anglican view on priestly orders and hierarchical structure was contrary to the Evangelical Lutheran concept of the "priesthood of all believers", which holds that all Christians stand on equal footing before God. They argued that the Old Covenant required a priest to mediate between God and humanity, but that New Covenant explicitly abolishes the need for priestly role by making every Christian a priest with direct access to God's grace. The Tucson resolution explained that the ELCA had not adopted the Episcopal view, but ECUSA or Reformed ordinands accepted by ELCA congregations would follow ELCA practice. Still others objected because of the implied directive that the use of a lay presidency would be abolished. This was a particularly issue for rural congregations that periodically "called" a congregation member to conduct communion services consecrating the elements in the interim period or with the absence of ordained clergy (pastor). The Tucson resolution explicitly affirmed the continued use of lay ministry. | 2022-07-12T22:00:53Z | [
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|
7,450 | Context menu | A context menu (also called contextual, shortcut, and pop up or pop-up menu) is a menu in a graphical user interface (GUI) that appears upon user interaction, such as a right-click mouse operation. A context menu offers a limited set of choices that are available in the current state, or context, of the operating system or application to which the menu belongs. Usually the available choices are actions related to the selected object. From a technical point of view, such a context menu is a graphical control element.
Context menus first appeared in the Smalltalk environment on the Xerox Alto computer, where they were called pop-up menus; they were invented by Dan Ingalls in the mid-1970s.
Microsoft Office v3.0 introduced the context menu for copy and paste functionality in 1990. Borland demonstrated extensive use of the context menu in 1991 at the Second Paradox Conference in Phoenix Arizona. Lotus 1-2-3/G for OS/2 v1.0 added additional formatting options in 1991. Borland Quattro Pro for Windows v1.0 introduced the Properties context menu option in 1992.
Context menus are opened via various forms of user interaction that target a region of the GUI that supports context menus. The specific form of user interaction and the means by which a region is targeted vary:
Windows mouse click behavior is such that the context menu doesn't open while the mouse button is pressed, but only opens the menu when the button is released, so the user has to click again to select a context menu item. This behavior differs from that of macOS and most free software GUIs.
Context menus are sometimes hierarchically organized, allowing navigation through different levels of the menu structure. The implementations differ: Microsoft Word was one of the first applications to only show sub-entries of some menu entries after clicking an arrow icon on the context menu, otherwise executing an action associated with the parent entry. This makes it possible to quickly repeat an action with the parameters of the previous execution, and to better separate options from actions.
The following window managers provide context menu functionality:
Context menus have received some criticism from usability analysts when improperly used, as some applications make certain features only available in context menus, which may confuse even experienced users (especially when the context menus can only be activated in a limited area of the application's client window).
Context menus usually open in a fixed position under the pointer, but when the pointer is near a screen edge the menu will be displaced - thus reducing consistency and impeding use of muscle memory. If the context menu is being triggered by keyboard, such as by using Shift + F10, the context menu appears near the focused widget instead of the position of the pointer, to save recognition efforts.
Microsoft's guidelines call for always using the term context menu, and explicitly deprecate shortcut menu. | [
{
"paragraph_id": 0,
"text": "A context menu (also called contextual, shortcut, and pop up or pop-up menu) is a menu in a graphical user interface (GUI) that appears upon user interaction, such as a right-click mouse operation. A context menu offers a limited set of choices that are available in the current state, or context, of the operating system or application to which the menu belongs. Usually the available choices are actions related to the selected object. From a technical point of view, such a context menu is a graphical control element.",
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},
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"title": "History"
},
{
"paragraph_id": 2,
"text": "Microsoft Office v3.0 introduced the context menu for copy and paste functionality in 1990. Borland demonstrated extensive use of the context menu in 1991 at the Second Paradox Conference in Phoenix Arizona. Lotus 1-2-3/G for OS/2 v1.0 added additional formatting options in 1991. Borland Quattro Pro for Windows v1.0 introduced the Properties context menu option in 1992.",
"title": "History"
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"paragraph_id": 3,
"text": "Context menus are opened via various forms of user interaction that target a region of the GUI that supports context menus. The specific form of user interaction and the means by which a region is targeted vary:",
"title": "Implementation"
},
{
"paragraph_id": 4,
"text": "Windows mouse click behavior is such that the context menu doesn't open while the mouse button is pressed, but only opens the menu when the button is released, so the user has to click again to select a context menu item. This behavior differs from that of macOS and most free software GUIs.",
"title": "Implementation"
},
{
"paragraph_id": 5,
"text": "Context menus are sometimes hierarchically organized, allowing navigation through different levels of the menu structure. The implementations differ: Microsoft Word was one of the first applications to only show sub-entries of some menu entries after clicking an arrow icon on the context menu, otherwise executing an action associated with the parent entry. This makes it possible to quickly repeat an action with the parameters of the previous execution, and to better separate options from actions.",
"title": "Implementation"
},
{
"paragraph_id": 6,
"text": "The following window managers provide context menu functionality:",
"title": "Implementation"
},
{
"paragraph_id": 7,
"text": "Context menus have received some criticism from usability analysts when improperly used, as some applications make certain features only available in context menus, which may confuse even experienced users (especially when the context menus can only be activated in a limited area of the application's client window).",
"title": "Usability"
},
{
"paragraph_id": 8,
"text": "Context menus usually open in a fixed position under the pointer, but when the pointer is near a screen edge the menu will be displaced - thus reducing consistency and impeding use of muscle memory. If the context menu is being triggered by keyboard, such as by using Shift + F10, the context menu appears near the focused widget instead of the position of the pointer, to save recognition efforts.",
"title": "Usability"
},
{
"paragraph_id": 9,
"text": "Microsoft's guidelines call for always using the term context menu, and explicitly deprecate shortcut menu.",
"title": "In documentation"
}
] | A context menu is a menu in a graphical user interface (GUI) that appears upon user interaction, such as a right-click mouse operation. A context menu offers a limited set of choices that are available in the current state, or context, of the operating system or application to which the menu belongs. Usually the available choices are actions related to the selected object. From a technical point of view, such a context menu is a graphical control element. | 2001-12-13T00:32:13Z | 2023-08-16T01:53:39Z | [
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7,451 | Jews as the chosen people | In Judaism, the concept of the Jews as the chosen people (Hebrew: הָעָם הַנִבְחַר ha-ʿam ha-nivḥar , IPA: haʕam hanivħar) is the belief that the Jews, via descent from the ancient Israelites, are the chosen people, i.e. selected to be in a covenant with God. The idea of the Israelites being chosen by God is found most directly in the Book of Deuteronomy as the verb baḥar (בָּחַר), and is alluded to elsewhere in the Hebrew Bible using other terms such as "holy people". Much is written about these topics in rabbinic literature. The three largest Jewish denominations—Orthodox Judaism, Conservative Judaism and Reform Judaism—maintain the belief that the Jews have been chosen by God for a purpose. Sometimes this choice is seen as charging the Jewish people with a specific mission—to be a light unto the nations, and to exemplify the covenant with God as described in the Torah.
While the concept of "chosenness" may be understood by some to connote ethnic supremacy, the status as a "chosen people" within Judaism does not preclude a belief that God has a relationship with other peoples—rather, Judaism holds that God had entered into a covenant with all humankind, and that Jews and non-Jews alike have a relationship with God. Biblical references as well as rabbinic literature support this view: Moses refers to the "God of the spirits of all flesh", the Tanakh (Hebrew Bible) also identifies prophets outside the community of Israel and the prophet Jonah is explicitly told to go prophesize to the non-Jewish people of Nineveh. Based on these statements and stories, some rabbis theorized that, in the words of Natan'el al-Fayyumi, a Yemenite Jewish theologian of the 12th century, "God permitted to every people something he forbade to others ... [and] God sends a prophet to every people according to their own language." (Levine, 1907/1966) The Mishnah states that "Humanity was produced from one man, Adam, to show God's greatness. When a man mints a coin in a press, each coin is identical. But when the King of Kings, the Holy One, blessed be He, creates people in the form of Adam not one is similar to any other" (Mishnah Sanhedrin 4:5). The Tosefta, an important supplement to the Mishnah, also states: "Righteous people of all nations have a share in the world to come" (Sanhedrin 105a).
According to the Israel Democracy Institute, approximately two thirds of Israeli Jews believe that Jews are the "chosen people".
According to Deuteronomy, when the Lord delivers the Israelites to the land, the other nations will be cast out, and "thou shalt make no covenant with them, nor show mercy unto them" Deuteronomy 7:5-7:6,
A similar passage exalting Israel as the chosen people follows prohibitions on baldness and cutting yourself in mourning, "For thou art a holy people".
The Torah also says,
God promises that he will never exchange his people with any other:
Other Torah verses about chosenness,
The obligation imposed upon the Israelites was emphasized by the prophet Amos:
Sometimes this choice is seen as charging the Jewish people with a specific mission—to be a light unto the nations, and to exemplify the covenant with God as described in the Torah. This view, however, does not always preclude a belief that God has a relationship with other peoples—rather, Judaism held that God had entered into a covenant with all humankind, and that Jews and non-Jews alike have a relationship with God. Biblical references as well as rabbinic literature support this view: Moses refers to the "God of the spirits of all flesh", and the Tanakh also identifies prophets outside the community of Israel. Based on these statements, some rabbis theorized that, in the words of Natan'el al-Fayyumi, a Yemenite Jewish theologian of the 12th century, "God permitted to every people something he forbade to others...[and] God sends a prophet to every people according to their own language." The Mishnah states that "Humanity was produced from one man, Adam, to show God's greatness. When a man mints a coin in a press, each coin is identical. But when the King of Kings, the Holy One, blessed be He, creates people in the form of Adam not one is similar to any other." The Tosefta, a collection of important post-Talmudic discourses, also states: "Righteous people of all nations have a share in the world to come."
Most Jewish texts do not state that "God chose the Jews" by itself. Rather, this is usually linked with a mission or purpose, such as proclaiming God's message among all the nations, even though Jews cannot become "unchosen" if they shirk their mission. This implies a special duty, which evolves from the belief that Jews have been pledged by the covenant which God concluded with the biblical patriarch Abraham, their ancestor, and again with the entire Jewish nation at Mount Sinai. In this view, Jews are charged with living a holy life as God's priest-people.
In the Jewish prayerbook (the Siddur), chosenness is referred to in a number of ways. The blessing for reading the Torah reads, "Praised are You, Lord our God, King of the Universe, Who has chosen us out of all the nations and bestowed upon us His Torah." In the "Kiddush", a prayer of sanctification, in which the Sabbath is inaugurated over a cup of wine, the text reads, "For you have chosen us and sanctified us out of all the nations, and have given us the Sabbath as an inheritance in love and favour. Praised are you, Lord, who hallows the Sabbath." In the "Kiddush" recited on festivals it reads, "Blessed are You ... who have chosen us from among all nations, raised us above all tongues, and made us holy through His commandments." The Aleinu prayer refers to the concept of Jews as a chosen people:
"It is our duty to praise the Master of all, to exalt the Creator of the Universe, who has not made us like the nations of the world and has not placed us like the families of the earth; who has not designed our destiny to be like theirs, nor our lot like that of all their multitude. We bend the knee and bow and acknowledge before the Supreme King of Kings, the Holy One, blessed be he, that it is he who stretched forth the heavens and founded the earth. His seat of glory is in the heavens above; his abode of majesty is in the lofty heights.
According to the Rabbis, "Israel is of all nations the most willful or headstrong one, and the Torah was to give it the right scope and power of resistance, or else the world could not have withstood its fierceness."
"The Lord offered the Law to all nations; but all refused to accept it except Israel."
How do we understand "A Gentile who consecrates his life to the study and observance of the Law ranks as high as the high priest", says R. Meïr, by deduction from Lev. xviii. 5; II Sam. vii. 19; Isa. xxvi. 2; Ps. xxxiii. 1, cxviii. 20, cxxv. 4, where all stress is laid not on Israel, but on man or the righteous one.
Maimonides states: It is now abundantly clear that the pledges Hashem made to Avraham and his descendants would be fulfilled exclusively first in Yitzchak and then in Yaakov, Yitzchak son. This is confirmed by a passage that states, "He is ever mindful of His covenant ... that He made with Avraham, swore to Yitzchak, and confirmed in a decree for Yaakov, for Yisrael, as an eternal covenant."
The Gemara states this regarding a non-Jew who studies Torah [his 7 mitzvot] and regarding this, see Shita Mekubetzes, Bava Kama 38a who says that this is an exaggeration. In any case, this statement was not extolling the non-Jew. The Rishonim explain that it is extolling the Torah.
Tosfos explains that it uses the example of a kohen gadol (high priest), because this statement is based on the verse, "y'kara hi mipnimim" (it is more precious than pearls). This is explained elsewhere in the Gemara to mean that the Torah is more precious pnimim (translated here as "inside" instead of as "pearls"; thus that the Torah is introspectively absorbed into the person), which refers to lifnai v'lifnim (translated as "the most inner of places"), that is the Holy of Holies where the kahon gadol went.
In any case, in Midrash Rabba this statement is made with an important addition: a non-Jew who converts and studies Torah etc.
The Nation of Israel is likened to the olive. Just as this fruit yields its precious oil only after being much pressed and squeezed, so Israel's destiny is one of great oppression and hardship, in order that it may thereby give forth its illuminating wisdom. Poverty is the quality most befitting Israel as the chosen people. Only on account of its good works is Israel among the nations "as the lily among thorns", or "as wheat among the chaff."
Rabbi Lord Immanuel Jakobovits, former Chief Rabbi of the United Synagogue of Great Britain (Modern Orthodox Judaism), described chosenness in this way:
"Yes, I do believe that the chosen people concept as affirmed by Judaism in its holy writ, its prayers, and its millennial tradition. In fact, I believe that every people—and indeed, in a more limited way, every individual—is "chosen" or destined for some distinct purpose in advancing the designs of Providence. Only, some fulfill their mission and others do not. Maybe the Greeks were chosen for their unique contributions to art and philosophy, the Romans for their pioneering services in law and government, the British for bringing parliamentary rule into the world, and the Americans for piloting democracy in a pluralistic society. The Jews were chosen by God to be 'peculiar unto Me' as the pioneers of religion and morality; that was and is their national purpose."
Modern Orthodox theologian Michael Wyschogrod wrote:
"[T]he initial election of Abraham himself was not earned. ... We are simply told that God commanded Abraham to leave his place of birth and go to a land that God would show him. He is also promised that his descendants will become a numerous people. But nowhere does the Bible tell us why Abraham rather than someone else was chosen. The implication is that God chooses whom He wishes and that He owes no accounting to anyone for His choices."
Rabbi Norman Lamm, a leader of Modern Orthodox Judaism, wrote:
"The chosenness of Israel relates exclusively to its spiritual vocation embodied in the Torah; the doctrine, indeed, was announced at Sinai. Whenever it is mentioned in our liturgy—such as the blessing immediately preceding the Shema....it is always related to Torah or Mitzvot (commandments). This spiritual vocation consists of two complementary functions, described as "Goy Kadosh", that of a holy nation, and "Mamlekhet Kohanim", that of a kingdom of priests. The first term denotes the development of communal separateness or differences in order to achieve a collective self-transcendence. ... The second term implies the obligation of this brotherhood of the spiritual elite toward the rest of mankind; priesthood is defined by the prophets as fundamentally a teaching vocation."
Conservative Judaism views the concept of chosenness in this way:
"Few beliefs have been subject to as much misunderstanding as the 'Chosen People' doctrine. The Torah and the Prophets clearly stated that this does not imply any innate Jewish superiority. In the words of Amos (3:2) 'You alone have I singled out of all the families of the earth—that is why I will call you to account for your iniquities.' The Torah tells us that we are to be "a kingdom of priests and a holy nation" with obligations and duties which flowed from our willingness to accept this status. Far from being a license for special privilege, it entailed additional responsibilities not only toward God but to our fellow human beings. As expressed in the blessing at the reading of the Torah, our people have always felt it to be a privilege to be selected for such a purpose. For the modern traditional Jew, the doctrine of the election and the covenant of Israel offers a purpose for Jewish existence which transcends its own self interests. It suggests that because of our special history and unique heritage we are in a position to demonstrate that a people that takes seriously the idea of being covenanted with God can not only thrive in the face of oppression, but can be a source of blessing to its children and its neighbors. It obligates us to build a just and compassionate society throughout the world and especially in the land of Israel where we may teach by example what it means to be a 'covenant people, a light unto the nations.'"
Rabbi Reuven Hammer comments on the excised sentence in the Aleinu prayer mentioned above:
"Originally the text read that God has not made us like the nations who "bow down to nothingness and vanity, and pray to an impotent god", ... In the Middle Ages these words were censored, since the church believed they were an insult to Christianity. Omitting them tends to give the impression that the Aleinu teaches that we are both different and better than others. The actual intent is to say that we are thankful that God has enlightened us so that, unlike the pagans, we worship the true God and not idols. There is no inherent superiority in being Jewish, but we do assert the superiority of monotheistic belief over paganism. Although paganism still exists today, we are no longer the only ones to have a belief in one God."
Reform Judaism views the concept of chosenness as follows: "Throughout the ages it has been Israel's mission to witness to the Divine in the face of every form of paganism and materialism. We regard it as our historic task to cooperate with all men in the establishment of the kingdom of God, of universal brotherhood, Justice, truth and peace on earth. This is our Messianic goal." In 1999 the Reform movement stated, "We affirm that the Jewish people are bound to God by an eternal covenant, as reflected in our varied understandings of Creation, Revelation and Redemption. ... We are Israel, a people aspiring to holiness, singled out through our ancient covenant and our unique history among the nations to be witnesses to God's presence. We are linked by that covenant and that history to all Jews in every age and place."
Many Kabbalistic sources, notably the Tanya, contain statements to the effect that the Jewish soul is qualitatively different from the non-Jewish soul. A number of known Chabad rabbis offered alternative readings of the Tanya, did not take this teaching literally, and even managed to reconcile it with the leftist ideas of internationalism and class struggle. The original text of the Tanya refers to the "idol worshippers" and does not mention the "nations of the world" at all, although such interpretation was endorsed by Menachem Mendel Schneerson and is popular in contemporary Chabad circles. Hillel of Parich, an early Tanya commentator, wrote that the souls of righteous Gentiles are more similar to the Jewish souls, and are generally good and not egoistic. This teaching was accepted by Schneerson and is considered normative in Chabad.
According to the author of the Tanya himself, a righteous non-Jew can achieve a high level of spiritually, similar to an angel, although his soul is still fundamentally different in character, but not value, from a Jewish one. Tzemach Tzedek, the third rebbe of Chabad, wrote that the Muslims are naturally good-hearted people. Rabbi Yosef Jacobson, a popular contemporary Chabad lecturer, teaches that in today's world most non-Jews belong to the category of righteous Gentiles, effectively rendering the Tanya's attitude anachronistic.
An anti-Zionist interpretation of Tanya was offered by Abraham Yehudah Khein, a prominent Ukrainian Chabad rabbi, who supported anarchist communism and considered Peter Kropotkin a great Tzaddik. Khein basically read the Tanya backwards; since the souls of idol worshipers are known to be evil, according to the Tanya, while the Jewish souls are known to be good, he concluded that truly altruistic people are really Jewish, in a spiritual sense, while Jewish nationalists and class oppressors are not. By this logic, he claimed that Vladimir Solovyov and Rabindranath Tagore probably have Jewish souls, while Leon Trotsky and other totalitarians do not, and many Zionists, whom he compared to apes, are merely "Jewish by birth certificate".
Nachman of Breslov also believed that Jewishness is a level of consciousness, and not an intrinsic inborn quality. He wrote that, according to the Book of Malachi, one can find "potential Jews" among all nations, whose souls are illuminated by the leap of "holy faith", which "activated" the Jewishness in their souls. These people would otherwise convert to Judaism, but prefer not to do so. Instead, they recognize the Divine unity within their pagan religions.
Isaac Arama, an influential philosopher and mystic of the 15th century, believed that righteous non-Jews are spiritually identical to the righteous Jews. Rabbi Menachem Meiri, a famous Catalan Talmudic commentator and Maimonidian philosopher, considered all people, who sincerely profess an ethical religion, to be part of a greater "spiritual Israel". He explicitly included Christians and Muslims in this category. Meiri rejected all Talmudic laws that discriminate between the Jews and non-Jews, claiming that they only apply to the ancient idolators, who had no sense of morality. The only exceptions are a few laws related directly or indirectly to intermarriage, which Meiri did recognize.
Meiri applied his idea of "spiritual Israel" to the Talmudic statements about unique qualities of the Jewish people. For example, he believed that the famous saying that Israel is above astrological predestination (Ein Mazal le-Israel) also applied to the followers of other ethical faiths. He also considered countries, inhabited by decent moral non-Jews, such as Languedoc, as a spiritual part of the Holy Land.
One Jewish critic of chosenness was the philosopher Baruch Spinoza. In the third chapter of his Theologico-Political Treatise, Spinoza mounts an argument against a naive interpretation of God's choice of the Jews. Bringing evidence from the Bible itself, he argues that God's choice of Israel was not unique (he had chosen other nations before choosing the Hebrew nation) and that the choice of the Jews is neither inclusive (it does not include all of the Jews, but only the 'pious' ones) nor exclusive (it also includes 'true gentile prophets'). Finally, he argues that God's choice is not unconditional. Recalling the numerous times God threatened the complete destruction of the Hebrew nation, he asserts that this choice is neither absolute, nor eternal, nor necessary.
In a German-language letter to philosopher Eric Gutkind, dated 3 January 1954, the physicist Albert Einstein wrote:
The word God is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable, but still primitive legends which are nevertheless pretty childish. No interpretation no matter how subtle can (for me) change this.... For me the Jewish religion like all other religions is an incarnation of the most childish superstitions. And the Jewish people to whom I gladly belong and with whose mentality I have a deep affinity have no different quality for me than all other people.... I cannot see anything “chosen” about them.
Reconstructionist Judaism rejects the concept of chosenness. Its founder, Rabbi Mordecai Kaplan, said that the idea that God chose the Jewish people leads to racist beliefs among Jews, and thus must be excised from Jewish theology. This rejection of chosenness is made explicit in the movement's siddurim (prayer books). For example, the original blessing recited before reading from the Torah contains the phrase, "asher bahar banu mikol ha’amim"—"Praised are you Lord our God, ruler of the Universe, who has chosen us from among all peoples by giving us the Torah." The Reconstructionist version is rewritten as "asher kervanu la’avodato", "Praised are you Lord our God, ruler of the Universe, who has drawn us to your service by giving us the Torah." In the mid-1980s, the Reconstructionist movement issued its Platform on Reconstructionism. It states that the idea of chosenness is "morally untenable", because anyone who has such beliefs "implies the superiority of the elect community and the rejection of others."
Not all Reconstructionists accept this view. The newest siddur of the movement, Kol Haneshamah, includes the traditional blessings as an option, and some modern Reconstructionist writers have opined that the traditional formulation is not racist, and should be embraced.
An original prayer book by Reconstructionist feminist poet Marcia Falk, The Book of Blessings, has been widely accepted by both Reform and Reconstructionist Jews. Falk rejects all concepts relating to hierarchy or distinction; she sees any distinction as leading to the acceptance of other kinds of distinctions, thus leading to prejudice. She writes that as a politically liberal feminist, she must reject distinctions made between men and women, homosexuals and heterosexuals, Jews and non-Jews, and to some extent even distinctions between the Sabbath and the other six days of the week. She thus rejects the idea of chosenness as unethical. She also rejects Jewish theology in general, and instead holds to a form of religious humanism. Falk writes:
"The idea of Israel as God's chosen people ... is a key concept in rabbinic Judaism. Yet it is particularly problematic for many Jews today, in that it seems to fly in the face of monotheistic belief that all humanity is created in the divine image—and hence, all humanity is equally loved and valued by God. ... I find it difficult to conceive of a feminist Judaism that would incorporate it in its teaching: the valuing of one people over and above others is all too analogous to the privileging of one sex over another."
Reconstructionist author Judith Plaskow also criticises the idea of chosenness, for many of the same reasons as Falk. A politically liberal lesbian, Plaskow rejects most distinctions made between men and women, homosexuals and heterosexuals, and Jews and non-Jews. In contrast to Falk, Plaskow does not reject all concepts of difference as inherently leading to unethical beliefs, and holds to a more classical form of Jewish theism than Falk.
A number of responses to these views have been made by Reform and Conservative Jews; they hold that these criticisms are against teachings that do not exist within liberal forms of Judaism, and which are rare in Orthodox Judaism (outside certain Haredi communities, such as Chabad). A separate criticism stems from the very existence of feminist forms of Judaism in all denominations of Judaism, which do not have a problem with the concepts of chosenness.
The children of Israel enjoy a special status in the Islamic book, the Quran (2:47 and 2:122). However, Muslim scholars point out that this status did not confer upon Israelites any racial superiority, and was only valid so long as the Israelites maintain their covenant with God.
Some Christians believe that the Jews were God's chosen people, but because of Jewish rejection of Jesus, the Christians in turn received that special status. This doctrine is known as Supersessionism.
Other Christians, such as the Christadelphians, believe that God has not rejected Israel as his chosen people and that the Jews will in fact accept Jesus as their Messiah at his Second Coming, resulting in their salvation.
Augustine criticized Jewish chosenness as "carnal." He reasoned that Israel was chosen "according to the flesh."
The Jamieson-Fausset-Brown Bible Commentary similarly argues that God made Israel the "holy nation" to exclusively uphold the promises made to their "pious forefathers". They argue that Jewish supremacist views are unsound, with Jews being frequently described as a small people that engaged in "perverse" moral conduct in the Bible.
Avi Beker, an Israeli scholar and former Secretary General of the World Jewish Congress, regarded the idea of the chosen people as Judaism's defining concept and "the central unspoken psychological, historical, and theological problem which is at the heart of Jewish-Gentile relations." In his book The Chosen: The History of an Idea, and the Anatomy of an Obsession, Beker expresses the view that the concept of chosenness is the driving force behind Jewish-Gentile relations, explaining both the admiration and, more pointedly, the envy and the hatred which the world has felt towards the Jews in both religious and secular terms. Beker argues that while Christianity has modified its doctrine on the displacement of the Jews, Islam has neither reversed nor reformed its theology concerning the succession of both the Jews and the Christians. According to Beker, this presents a major barrier to conflict resolution in the Arab-Israeli conflict.
The Israeli philosopher Ze'ev Levy writes that chosenness can be "(partially) justified only from the historical angle" with respect to its spiritual and moral contribution to Jewish life through the centuries as "a powerful agent of consolation and hope". He points out, however, that modern anthropological theories "do not merely proclaim the inherent universal equality of all people [as] human beings; they also stress the equivalence [emphasis in original] of all human cultures." He continues that "there are no inferior and superior people or cultures but only different, other, ones." He concludes that the concept of chosenness entails ethnocentrism, "which does not go hand in hand with otherness, that is, with unconditional respect of otherness".
Some people have said that Judaism's chosen people concept is racist because it implies that Jews are superior to non-Jews. The Anti-Defamation League asserts that the concept of a chosen people within Judaism has nothing to do with racial superiority. | [
{
"paragraph_id": 0,
"text": "In Judaism, the concept of the Jews as the chosen people (Hebrew: הָעָם הַנִבְחַר ha-ʿam ha-nivḥar , IPA: haʕam hanivħar) is the belief that the Jews, via descent from the ancient Israelites, are the chosen people, i.e. selected to be in a covenant with God. The idea of the Israelites being chosen by God is found most directly in the Book of Deuteronomy as the verb baḥar (בָּחַר), and is alluded to elsewhere in the Hebrew Bible using other terms such as \"holy people\". Much is written about these topics in rabbinic literature. The three largest Jewish denominations—Orthodox Judaism, Conservative Judaism and Reform Judaism—maintain the belief that the Jews have been chosen by God for a purpose. Sometimes this choice is seen as charging the Jewish people with a specific mission—to be a light unto the nations, and to exemplify the covenant with God as described in the Torah.",
"title": ""
},
{
"paragraph_id": 1,
"text": "While the concept of \"chosenness\" may be understood by some to connote ethnic supremacy, the status as a \"chosen people\" within Judaism does not preclude a belief that God has a relationship with other peoples—rather, Judaism holds that God had entered into a covenant with all humankind, and that Jews and non-Jews alike have a relationship with God. Biblical references as well as rabbinic literature support this view: Moses refers to the \"God of the spirits of all flesh\", the Tanakh (Hebrew Bible) also identifies prophets outside the community of Israel and the prophet Jonah is explicitly told to go prophesize to the non-Jewish people of Nineveh. Based on these statements and stories, some rabbis theorized that, in the words of Natan'el al-Fayyumi, a Yemenite Jewish theologian of the 12th century, \"God permitted to every people something he forbade to others ... [and] God sends a prophet to every people according to their own language.\" (Levine, 1907/1966) The Mishnah states that \"Humanity was produced from one man, Adam, to show God's greatness. When a man mints a coin in a press, each coin is identical. But when the King of Kings, the Holy One, blessed be He, creates people in the form of Adam not one is similar to any other\" (Mishnah Sanhedrin 4:5). The Tosefta, an important supplement to the Mishnah, also states: \"Righteous people of all nations have a share in the world to come\" (Sanhedrin 105a).",
"title": ""
},
{
"paragraph_id": 2,
"text": "According to the Israel Democracy Institute, approximately two thirds of Israeli Jews believe that Jews are the \"chosen people\".",
"title": ""
},
{
"paragraph_id": 3,
"text": "According to Deuteronomy, when the Lord delivers the Israelites to the land, the other nations will be cast out, and \"thou shalt make no covenant with them, nor show mercy unto them\" Deuteronomy 7:5-7:6,",
"title": "In the Bible"
},
{
"paragraph_id": 4,
"text": "A similar passage exalting Israel as the chosen people follows prohibitions on baldness and cutting yourself in mourning, \"For thou art a holy people\".",
"title": "In the Bible"
},
{
"paragraph_id": 5,
"text": "The Torah also says,",
"title": "In the Bible"
},
{
"paragraph_id": 6,
"text": "God promises that he will never exchange his people with any other:",
"title": "In the Bible"
},
{
"paragraph_id": 7,
"text": "Other Torah verses about chosenness,",
"title": "In the Bible"
},
{
"paragraph_id": 8,
"text": "The obligation imposed upon the Israelites was emphasized by the prophet Amos:",
"title": "In the Bible"
},
{
"paragraph_id": 9,
"text": "Sometimes this choice is seen as charging the Jewish people with a specific mission—to be a light unto the nations, and to exemplify the covenant with God as described in the Torah. This view, however, does not always preclude a belief that God has a relationship with other peoples—rather, Judaism held that God had entered into a covenant with all humankind, and that Jews and non-Jews alike have a relationship with God. Biblical references as well as rabbinic literature support this view: Moses refers to the \"God of the spirits of all flesh\", and the Tanakh also identifies prophets outside the community of Israel. Based on these statements, some rabbis theorized that, in the words of Natan'el al-Fayyumi, a Yemenite Jewish theologian of the 12th century, \"God permitted to every people something he forbade to others...[and] God sends a prophet to every people according to their own language.\" The Mishnah states that \"Humanity was produced from one man, Adam, to show God's greatness. When a man mints a coin in a press, each coin is identical. But when the King of Kings, the Holy One, blessed be He, creates people in the form of Adam not one is similar to any other.\" The Tosefta, a collection of important post-Talmudic discourses, also states: \"Righteous people of all nations have a share in the world to come.\"",
"title": "Rabbinic views"
},
{
"paragraph_id": 10,
"text": "Most Jewish texts do not state that \"God chose the Jews\" by itself. Rather, this is usually linked with a mission or purpose, such as proclaiming God's message among all the nations, even though Jews cannot become \"unchosen\" if they shirk their mission. This implies a special duty, which evolves from the belief that Jews have been pledged by the covenant which God concluded with the biblical patriarch Abraham, their ancestor, and again with the entire Jewish nation at Mount Sinai. In this view, Jews are charged with living a holy life as God's priest-people.",
"title": "Rabbinic views"
},
{
"paragraph_id": 11,
"text": "In the Jewish prayerbook (the Siddur), chosenness is referred to in a number of ways. The blessing for reading the Torah reads, \"Praised are You, Lord our God, King of the Universe, Who has chosen us out of all the nations and bestowed upon us His Torah.\" In the \"Kiddush\", a prayer of sanctification, in which the Sabbath is inaugurated over a cup of wine, the text reads, \"For you have chosen us and sanctified us out of all the nations, and have given us the Sabbath as an inheritance in love and favour. Praised are you, Lord, who hallows the Sabbath.\" In the \"Kiddush\" recited on festivals it reads, \"Blessed are You ... who have chosen us from among all nations, raised us above all tongues, and made us holy through His commandments.\" The Aleinu prayer refers to the concept of Jews as a chosen people:",
"title": "Rabbinic views"
},
{
"paragraph_id": 12,
"text": "\"It is our duty to praise the Master of all, to exalt the Creator of the Universe, who has not made us like the nations of the world and has not placed us like the families of the earth; who has not designed our destiny to be like theirs, nor our lot like that of all their multitude. We bend the knee and bow and acknowledge before the Supreme King of Kings, the Holy One, blessed be he, that it is he who stretched forth the heavens and founded the earth. His seat of glory is in the heavens above; his abode of majesty is in the lofty heights.",
"title": "Rabbinic views"
},
{
"paragraph_id": 13,
"text": "According to the Rabbis, \"Israel is of all nations the most willful or headstrong one, and the Torah was to give it the right scope and power of resistance, or else the world could not have withstood its fierceness.\"",
"title": "Rabbinic views"
},
{
"paragraph_id": 14,
"text": "\"The Lord offered the Law to all nations; but all refused to accept it except Israel.\"",
"title": "Rabbinic views"
},
{
"paragraph_id": 15,
"text": "How do we understand \"A Gentile who consecrates his life to the study and observance of the Law ranks as high as the high priest\", says R. Meïr, by deduction from Lev. xviii. 5; II Sam. vii. 19; Isa. xxvi. 2; Ps. xxxiii. 1, cxviii. 20, cxxv. 4, where all stress is laid not on Israel, but on man or the righteous one.",
"title": "Rabbinic views"
},
{
"paragraph_id": 16,
"text": "Maimonides states: It is now abundantly clear that the pledges Hashem made to Avraham and his descendants would be fulfilled exclusively first in Yitzchak and then in Yaakov, Yitzchak son. This is confirmed by a passage that states, \"He is ever mindful of His covenant ... that He made with Avraham, swore to Yitzchak, and confirmed in a decree for Yaakov, for Yisrael, as an eternal covenant.\"",
"title": "Rabbinic views"
},
{
"paragraph_id": 17,
"text": "The Gemara states this regarding a non-Jew who studies Torah [his 7 mitzvot] and regarding this, see Shita Mekubetzes, Bava Kama 38a who says that this is an exaggeration. In any case, this statement was not extolling the non-Jew. The Rishonim explain that it is extolling the Torah.",
"title": "Rabbinic views"
},
{
"paragraph_id": 18,
"text": "Tosfos explains that it uses the example of a kohen gadol (high priest), because this statement is based on the verse, \"y'kara hi mipnimim\" (it is more precious than pearls). This is explained elsewhere in the Gemara to mean that the Torah is more precious pnimim (translated here as \"inside\" instead of as \"pearls\"; thus that the Torah is introspectively absorbed into the person), which refers to lifnai v'lifnim (translated as \"the most inner of places\"), that is the Holy of Holies where the kahon gadol went.",
"title": "Rabbinic views"
},
{
"paragraph_id": 19,
"text": "In any case, in Midrash Rabba this statement is made with an important addition: a non-Jew who converts and studies Torah etc.",
"title": "Rabbinic views"
},
{
"paragraph_id": 20,
"text": "The Nation of Israel is likened to the olive. Just as this fruit yields its precious oil only after being much pressed and squeezed, so Israel's destiny is one of great oppression and hardship, in order that it may thereby give forth its illuminating wisdom. Poverty is the quality most befitting Israel as the chosen people. Only on account of its good works is Israel among the nations \"as the lily among thorns\", or \"as wheat among the chaff.\"",
"title": "Rabbinic views"
},
{
"paragraph_id": 21,
"text": "Rabbi Lord Immanuel Jakobovits, former Chief Rabbi of the United Synagogue of Great Britain (Modern Orthodox Judaism), described chosenness in this way:",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 22,
"text": "\"Yes, I do believe that the chosen people concept as affirmed by Judaism in its holy writ, its prayers, and its millennial tradition. In fact, I believe that every people—and indeed, in a more limited way, every individual—is \"chosen\" or destined for some distinct purpose in advancing the designs of Providence. Only, some fulfill their mission and others do not. Maybe the Greeks were chosen for their unique contributions to art and philosophy, the Romans for their pioneering services in law and government, the British for bringing parliamentary rule into the world, and the Americans for piloting democracy in a pluralistic society. The Jews were chosen by God to be 'peculiar unto Me' as the pioneers of religion and morality; that was and is their national purpose.\"",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 23,
"text": "Modern Orthodox theologian Michael Wyschogrod wrote:",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 24,
"text": "\"[T]he initial election of Abraham himself was not earned. ... We are simply told that God commanded Abraham to leave his place of birth and go to a land that God would show him. He is also promised that his descendants will become a numerous people. But nowhere does the Bible tell us why Abraham rather than someone else was chosen. The implication is that God chooses whom He wishes and that He owes no accounting to anyone for His choices.\"",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 25,
"text": "Rabbi Norman Lamm, a leader of Modern Orthodox Judaism, wrote:",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 26,
"text": "\"The chosenness of Israel relates exclusively to its spiritual vocation embodied in the Torah; the doctrine, indeed, was announced at Sinai. Whenever it is mentioned in our liturgy—such as the blessing immediately preceding the Shema....it is always related to Torah or Mitzvot (commandments). This spiritual vocation consists of two complementary functions, described as \"Goy Kadosh\", that of a holy nation, and \"Mamlekhet Kohanim\", that of a kingdom of priests. The first term denotes the development of communal separateness or differences in order to achieve a collective self-transcendence. ... The second term implies the obligation of this brotherhood of the spiritual elite toward the rest of mankind; priesthood is defined by the prophets as fundamentally a teaching vocation.\"",
"title": "Modern Orthodox views"
},
{
"paragraph_id": 27,
"text": "Conservative Judaism views the concept of chosenness in this way:",
"title": "Conservative views"
},
{
"paragraph_id": 28,
"text": "\"Few beliefs have been subject to as much misunderstanding as the 'Chosen People' doctrine. The Torah and the Prophets clearly stated that this does not imply any innate Jewish superiority. In the words of Amos (3:2) 'You alone have I singled out of all the families of the earth—that is why I will call you to account for your iniquities.' The Torah tells us that we are to be \"a kingdom of priests and a holy nation\" with obligations and duties which flowed from our willingness to accept this status. Far from being a license for special privilege, it entailed additional responsibilities not only toward God but to our fellow human beings. As expressed in the blessing at the reading of the Torah, our people have always felt it to be a privilege to be selected for such a purpose. For the modern traditional Jew, the doctrine of the election and the covenant of Israel offers a purpose for Jewish existence which transcends its own self interests. It suggests that because of our special history and unique heritage we are in a position to demonstrate that a people that takes seriously the idea of being covenanted with God can not only thrive in the face of oppression, but can be a source of blessing to its children and its neighbors. It obligates us to build a just and compassionate society throughout the world and especially in the land of Israel where we may teach by example what it means to be a 'covenant people, a light unto the nations.'\"",
"title": "Conservative views"
},
{
"paragraph_id": 29,
"text": "Rabbi Reuven Hammer comments on the excised sentence in the Aleinu prayer mentioned above:",
"title": "Conservative views"
},
{
"paragraph_id": 30,
"text": "\"Originally the text read that God has not made us like the nations who \"bow down to nothingness and vanity, and pray to an impotent god\", ... In the Middle Ages these words were censored, since the church believed they were an insult to Christianity. Omitting them tends to give the impression that the Aleinu teaches that we are both different and better than others. The actual intent is to say that we are thankful that God has enlightened us so that, unlike the pagans, we worship the true God and not idols. There is no inherent superiority in being Jewish, but we do assert the superiority of monotheistic belief over paganism. Although paganism still exists today, we are no longer the only ones to have a belief in one God.\"",
"title": "Conservative views"
},
{
"paragraph_id": 31,
"text": "Reform Judaism views the concept of chosenness as follows: \"Throughout the ages it has been Israel's mission to witness to the Divine in the face of every form of paganism and materialism. We regard it as our historic task to cooperate with all men in the establishment of the kingdom of God, of universal brotherhood, Justice, truth and peace on earth. This is our Messianic goal.\" In 1999 the Reform movement stated, \"We affirm that the Jewish people are bound to God by an eternal covenant, as reflected in our varied understandings of Creation, Revelation and Redemption. ... We are Israel, a people aspiring to holiness, singled out through our ancient covenant and our unique history among the nations to be witnesses to God's presence. We are linked by that covenant and that history to all Jews in every age and place.\"",
"title": "Reform views"
},
{
"paragraph_id": 32,
"text": "Many Kabbalistic sources, notably the Tanya, contain statements to the effect that the Jewish soul is qualitatively different from the non-Jewish soul. A number of known Chabad rabbis offered alternative readings of the Tanya, did not take this teaching literally, and even managed to reconcile it with the leftist ideas of internationalism and class struggle. The original text of the Tanya refers to the \"idol worshippers\" and does not mention the \"nations of the world\" at all, although such interpretation was endorsed by Menachem Mendel Schneerson and is popular in contemporary Chabad circles. Hillel of Parich, an early Tanya commentator, wrote that the souls of righteous Gentiles are more similar to the Jewish souls, and are generally good and not egoistic. This teaching was accepted by Schneerson and is considered normative in Chabad.",
"title": "Alternative views"
},
{
"paragraph_id": 33,
"text": "According to the author of the Tanya himself, a righteous non-Jew can achieve a high level of spiritually, similar to an angel, although his soul is still fundamentally different in character, but not value, from a Jewish one. Tzemach Tzedek, the third rebbe of Chabad, wrote that the Muslims are naturally good-hearted people. Rabbi Yosef Jacobson, a popular contemporary Chabad lecturer, teaches that in today's world most non-Jews belong to the category of righteous Gentiles, effectively rendering the Tanya's attitude anachronistic.",
"title": "Alternative views"
},
{
"paragraph_id": 34,
"text": "An anti-Zionist interpretation of Tanya was offered by Abraham Yehudah Khein, a prominent Ukrainian Chabad rabbi, who supported anarchist communism and considered Peter Kropotkin a great Tzaddik. Khein basically read the Tanya backwards; since the souls of idol worshipers are known to be evil, according to the Tanya, while the Jewish souls are known to be good, he concluded that truly altruistic people are really Jewish, in a spiritual sense, while Jewish nationalists and class oppressors are not. By this logic, he claimed that Vladimir Solovyov and Rabindranath Tagore probably have Jewish souls, while Leon Trotsky and other totalitarians do not, and many Zionists, whom he compared to apes, are merely \"Jewish by birth certificate\".",
"title": "Alternative views"
},
{
"paragraph_id": 35,
"text": "Nachman of Breslov also believed that Jewishness is a level of consciousness, and not an intrinsic inborn quality. He wrote that, according to the Book of Malachi, one can find \"potential Jews\" among all nations, whose souls are illuminated by the leap of \"holy faith\", which \"activated\" the Jewishness in their souls. These people would otherwise convert to Judaism, but prefer not to do so. Instead, they recognize the Divine unity within their pagan religions.",
"title": "Alternative views"
},
{
"paragraph_id": 36,
"text": "Isaac Arama, an influential philosopher and mystic of the 15th century, believed that righteous non-Jews are spiritually identical to the righteous Jews. Rabbi Menachem Meiri, a famous Catalan Talmudic commentator and Maimonidian philosopher, considered all people, who sincerely profess an ethical religion, to be part of a greater \"spiritual Israel\". He explicitly included Christians and Muslims in this category. Meiri rejected all Talmudic laws that discriminate between the Jews and non-Jews, claiming that they only apply to the ancient idolators, who had no sense of morality. The only exceptions are a few laws related directly or indirectly to intermarriage, which Meiri did recognize.",
"title": "Alternative views"
},
{
"paragraph_id": 37,
"text": "Meiri applied his idea of \"spiritual Israel\" to the Talmudic statements about unique qualities of the Jewish people. For example, he believed that the famous saying that Israel is above astrological predestination (Ein Mazal le-Israel) also applied to the followers of other ethical faiths. He also considered countries, inhabited by decent moral non-Jews, such as Languedoc, as a spiritual part of the Holy Land.",
"title": "Alternative views"
},
{
"paragraph_id": 38,
"text": "One Jewish critic of chosenness was the philosopher Baruch Spinoza. In the third chapter of his Theologico-Political Treatise, Spinoza mounts an argument against a naive interpretation of God's choice of the Jews. Bringing evidence from the Bible itself, he argues that God's choice of Israel was not unique (he had chosen other nations before choosing the Hebrew nation) and that the choice of the Jews is neither inclusive (it does not include all of the Jews, but only the 'pious' ones) nor exclusive (it also includes 'true gentile prophets'). Finally, he argues that God's choice is not unconditional. Recalling the numerous times God threatened the complete destruction of the Hebrew nation, he asserts that this choice is neither absolute, nor eternal, nor necessary.",
"title": "Alternative views"
},
{
"paragraph_id": 39,
"text": "In a German-language letter to philosopher Eric Gutkind, dated 3 January 1954, the physicist Albert Einstein wrote:",
"title": "Alternative views"
},
{
"paragraph_id": 40,
"text": "The word God is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable, but still primitive legends which are nevertheless pretty childish. No interpretation no matter how subtle can (for me) change this.... For me the Jewish religion like all other religions is an incarnation of the most childish superstitions. And the Jewish people to whom I gladly belong and with whose mentality I have a deep affinity have no different quality for me than all other people.... I cannot see anything “chosen” about them.",
"title": "Alternative views"
},
{
"paragraph_id": 41,
"text": "Reconstructionist Judaism rejects the concept of chosenness. Its founder, Rabbi Mordecai Kaplan, said that the idea that God chose the Jewish people leads to racist beliefs among Jews, and thus must be excised from Jewish theology. This rejection of chosenness is made explicit in the movement's siddurim (prayer books). For example, the original blessing recited before reading from the Torah contains the phrase, \"asher bahar banu mikol ha’amim\"—\"Praised are you Lord our God, ruler of the Universe, who has chosen us from among all peoples by giving us the Torah.\" The Reconstructionist version is rewritten as \"asher kervanu la’avodato\", \"Praised are you Lord our God, ruler of the Universe, who has drawn us to your service by giving us the Torah.\" In the mid-1980s, the Reconstructionist movement issued its Platform on Reconstructionism. It states that the idea of chosenness is \"morally untenable\", because anyone who has such beliefs \"implies the superiority of the elect community and the rejection of others.\"",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 42,
"text": "Not all Reconstructionists accept this view. The newest siddur of the movement, Kol Haneshamah, includes the traditional blessings as an option, and some modern Reconstructionist writers have opined that the traditional formulation is not racist, and should be embraced.",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 43,
"text": "An original prayer book by Reconstructionist feminist poet Marcia Falk, The Book of Blessings, has been widely accepted by both Reform and Reconstructionist Jews. Falk rejects all concepts relating to hierarchy or distinction; she sees any distinction as leading to the acceptance of other kinds of distinctions, thus leading to prejudice. She writes that as a politically liberal feminist, she must reject distinctions made between men and women, homosexuals and heterosexuals, Jews and non-Jews, and to some extent even distinctions between the Sabbath and the other six days of the week. She thus rejects the idea of chosenness as unethical. She also rejects Jewish theology in general, and instead holds to a form of religious humanism. Falk writes:",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 44,
"text": "\"The idea of Israel as God's chosen people ... is a key concept in rabbinic Judaism. Yet it is particularly problematic for many Jews today, in that it seems to fly in the face of monotheistic belief that all humanity is created in the divine image—and hence, all humanity is equally loved and valued by God. ... I find it difficult to conceive of a feminist Judaism that would incorporate it in its teaching: the valuing of one people over and above others is all too analogous to the privileging of one sex over another.\"",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 45,
"text": "Reconstructionist author Judith Plaskow also criticises the idea of chosenness, for many of the same reasons as Falk. A politically liberal lesbian, Plaskow rejects most distinctions made between men and women, homosexuals and heterosexuals, and Jews and non-Jews. In contrast to Falk, Plaskow does not reject all concepts of difference as inherently leading to unethical beliefs, and holds to a more classical form of Jewish theism than Falk.",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 46,
"text": "A number of responses to these views have been made by Reform and Conservative Jews; they hold that these criticisms are against teachings that do not exist within liberal forms of Judaism, and which are rare in Orthodox Judaism (outside certain Haredi communities, such as Chabad). A separate criticism stems from the very existence of feminist forms of Judaism in all denominations of Judaism, which do not have a problem with the concepts of chosenness.",
"title": "Reconstructionist criticism"
},
{
"paragraph_id": 47,
"text": "The children of Israel enjoy a special status in the Islamic book, the Quran (2:47 and 2:122). However, Muslim scholars point out that this status did not confer upon Israelites any racial superiority, and was only valid so long as the Israelites maintain their covenant with God.",
"title": "Views of other religions"
},
{
"paragraph_id": 48,
"text": "Some Christians believe that the Jews were God's chosen people, but because of Jewish rejection of Jesus, the Christians in turn received that special status. This doctrine is known as Supersessionism.",
"title": "Views of other religions"
},
{
"paragraph_id": 49,
"text": "Other Christians, such as the Christadelphians, believe that God has not rejected Israel as his chosen people and that the Jews will in fact accept Jesus as their Messiah at his Second Coming, resulting in their salvation.",
"title": "Views of other religions"
},
{
"paragraph_id": 50,
"text": "Augustine criticized Jewish chosenness as \"carnal.\" He reasoned that Israel was chosen \"according to the flesh.\"",
"title": "Views of other religions"
},
{
"paragraph_id": 51,
"text": "The Jamieson-Fausset-Brown Bible Commentary similarly argues that God made Israel the \"holy nation\" to exclusively uphold the promises made to their \"pious forefathers\". They argue that Jewish supremacist views are unsound, with Jews being frequently described as a small people that engaged in \"perverse\" moral conduct in the Bible.",
"title": "Views of other religions"
},
{
"paragraph_id": 52,
"text": "Avi Beker, an Israeli scholar and former Secretary General of the World Jewish Congress, regarded the idea of the chosen people as Judaism's defining concept and \"the central unspoken psychological, historical, and theological problem which is at the heart of Jewish-Gentile relations.\" In his book The Chosen: The History of an Idea, and the Anatomy of an Obsession, Beker expresses the view that the concept of chosenness is the driving force behind Jewish-Gentile relations, explaining both the admiration and, more pointedly, the envy and the hatred which the world has felt towards the Jews in both religious and secular terms. Beker argues that while Christianity has modified its doctrine on the displacement of the Jews, Islam has neither reversed nor reformed its theology concerning the succession of both the Jews and the Christians. According to Beker, this presents a major barrier to conflict resolution in the Arab-Israeli conflict.",
"title": "Influence on Judaism's relationship with other religions"
},
{
"paragraph_id": 53,
"text": "The Israeli philosopher Ze'ev Levy writes that chosenness can be \"(partially) justified only from the historical angle\" with respect to its spiritual and moral contribution to Jewish life through the centuries as \"a powerful agent of consolation and hope\". He points out, however, that modern anthropological theories \"do not merely proclaim the inherent universal equality of all people [as] human beings; they also stress the equivalence [emphasis in original] of all human cultures.\" He continues that \"there are no inferior and superior people or cultures but only different, other, ones.\" He concludes that the concept of chosenness entails ethnocentrism, \"which does not go hand in hand with otherness, that is, with unconditional respect of otherness\".",
"title": "Ethnocentrism"
},
{
"paragraph_id": 54,
"text": "Some people have said that Judaism's chosen people concept is racist because it implies that Jews are superior to non-Jews. The Anti-Defamation League asserts that the concept of a chosen people within Judaism has nothing to do with racial superiority.",
"title": "Ethnocentrism"
}
] | In Judaism, the concept of the Jews as the chosen people is the belief that the Jews, via descent from the ancient Israelites, are the chosen people, i.e. selected to be in a covenant with God. The idea of the Israelites being chosen by God is found most directly in the Book of Deuteronomy as the verb baḥar (בָּחַר), and is alluded to elsewhere in the Hebrew Bible using other terms such as "holy people". Much is written about these topics in rabbinic literature. The three largest Jewish denominations—Orthodox Judaism, Conservative Judaism and Reform Judaism—maintain the belief that the Jews have been chosen by God for a purpose. Sometimes this choice is seen as charging the Jewish people with a specific mission—to be a light unto the nations, and to exemplify the covenant with God as described in the Torah. While the concept of "chosenness" may be understood by some to connote ethnic supremacy, the status as a "chosen people" within Judaism does not preclude a belief that God has a relationship with other peoples—rather, Judaism holds that God had entered into a covenant with all humankind, and that Jews and non-Jews alike have a relationship with God. Biblical references as well as rabbinic literature support this view: Moses refers to the "God of the spirits of all flesh", the Tanakh also identifies prophets outside the community of Israel and the prophet Jonah is explicitly told to go prophesize to the non-Jewish people of Nineveh. Based on these statements and stories, some rabbis theorized that, in the words of Natan'el al-Fayyumi, a Yemenite Jewish theologian of the 12th century, "God permitted to every people something he forbade to others ... [and] God sends a prophet to every people according to their own language." The Mishnah states that "Humanity was produced from one man, Adam, to show God's greatness. When a man mints a coin in a press, each coin is identical. But when the King of Kings, the Holy One, blessed be He, creates people in the form of Adam not one is similar to any other". The Tosefta, an important supplement to the Mishnah, also states: "Righteous people of all nations have a share in the world to come". According to the Israel Democracy Institute, approximately two thirds of Israeli Jews believe that Jews are the "chosen people". | 2001-12-13T00:59:20Z | 2023-12-06T10:23:48Z | [
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] | https://en.wikipedia.org/wiki/Jews_as_the_chosen_people |
7,453 | Christian persecution | Christian persecution may refer to: | [
{
"paragraph_id": 0,
"text": "Christian persecution may refer to:",
"title": ""
}
] | Christian persecution may refer to: History of Christian thought on persecution and tolerance Historical persecution by Christians
Persecution of Heathens (disambiguation)
Persecution of pagans in the late Roman Empire
Christian persecution of paganism under Theodosius I
Anti-paganism policy of Constantius II
Persecution of Germanic Pagans (disambiguation)
Persecution of Ottoman Muslims
Persecution of Jews
Black Death Jewish persecutions Anti-Catholicism
Anti-Protestantism
Persecution of Eastern Orthodox Christians
Persecution of Christians in Mexico Persecution of Christians
Persecution of Christians in the New Testament
Persecution of Christians in the Roman Empire
Decian persecution
Persecution in Lyon
Diocletianic Persecution
List of Christians martyred during the reign of Diocletian
Gothic persecution of Christians
Persecution of Eastern Orthodox Christians
Persecution of Oriental Orthodox Christians
Persecution of Copts
Persecution of Christians in the modern era
Nazi persecution of the Catholic Church in Germany
Persecution of Jehovah's Witnesses in Nazi Germany
Persecution of Christians in the Soviet Union
Persecution of Christians in the Eastern Bloc
Eastern Catholic victims of Soviet persecutions
Religious persecution during the Soviet occupation of Bessarabia and Northern Bukovina
Anti-Christian violence in India
Genocide of Christians by ISIL
Persecution of Christians in the Muslim world | 2001-12-13T15:41:51Z | 2023-08-04T14:59:23Z | [
"Template:Disambiguation"
] | https://en.wikipedia.org/wiki/Christian_persecution |
7,455 | Chaparral | Chaparral (/ˌʃæpəˈræl, ˌtʃæp-/ SHAP-ə-RAL, CHAP-) is a shrubland plant community found primarily in California, in southern Oregon and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intensity crown fires.
Many chaparral shrubs have hard sclerophyllous evergreen leaves, as contrasted with the associated soft-leaved, drought-deciduous, scrub community of coastal sage scrub, found often on drier, southern facing slopes.
Three other closely related chaparral shrubland systems occur in central Arizona, western Texas, and along the eastern side of central Mexico's mountain chains, all having summer rains in contrast to the Mediterranean climate of other chaparral formations. Chaparral comprises 9% of California's wildland vegetation and contains 20% of its plant species.
The name comes from the Spanish word chaparro, which translates to "place of the scrub oak".
In its natural state, chaparral is characterized by infrequent fires, with natural fire return intervals ranging between 30 years and over 150 years. Mature chaparral (at least 60 years since time of last fire) is characterized by nearly impenetrable, dense thickets (except the more open desert chaparral). These plants are flammable during the late summer and autumn months when conditions are characteristically hot and dry. They grow as woody shrubs with thick, leathery, and often small leaves, contain green leaves all year (are evergreen), and are typically drought resistant (with some exceptions). After the first rains following a fire, the landscape is dominated by small flowering herbaceous plants, known as fire followers, which die back with the summer dry period.
Similar plant communities are found in the four other Mediterranean climate regions around the world, including the Mediterranean Basin (where it is known as maquis), central Chile (where it is called matorral), the South African Cape Region (known there as fynbos), and in Western and Southern Australia (as kwongan). According to the California Academy of Sciences, Mediterranean shrubland contains more than 20 percent of the world's plant diversity. The word chaparral is a loanword from Spanish chaparro, meaning place of the scrub oak, which itself comes from a Basque word, txapar, that has the same meaning.
Conservation International and other conservation organizations consider chaparral to be a biodiversity hotspot – a biological community with a large number of different species – that is under threat by human activity.
The California chaparral and woodlands ecoregion, of the Mediterranean forests, woodlands, and scrub biome, has three sub-ecoregions with ecosystem—plant community subdivisions:
For the numerous individual plant and animal species found within the California chaparral and woodlands ecoregion, see:
Some of the indicator plants of the California chaparral and woodlands ecoregion include:
Chaparral soils and nutrient composition
Chaparral characteristically is found in areas with steep topography and shallow stony soils, while adjacent areas with clay soils, even where steep, tend to be colonized by annual plants and grasses. Some chaparral species are adapted to nutrient-poor soils developed over serpentine and other ultramafic rock, with a high ratio of magnesium and iron to calcium and potassium, that are also generally low in essential nutrients such as nitrogen.
Another phytogeography system uses two California chaparral and woodlands subdivisions: the cismontane chaparral and the transmontane (desert) chaparral.
Cismontane chaparral ("this side of the mountain") refers to the chaparral ecosystem in the Mediterranean forests, woodlands, and scrub biome in California, growing on the western (and coastal) sides of large mountain range systems, such as the western slopes of the Sierra Nevada in the San Joaquin Valley foothills, western slopes of the Peninsular Ranges and California Coast Ranges, and south-southwest slopes of the Transverse Ranges in the Central Coast and Southern California regions.
In Central and Southern California chaparral forms a dominant habitat. Members of the chaparral biota native to California, all of which tend to regrow quickly after fires, include:
The complex ecology of chaparral habitats supports a very large number of animal species. The following is a short list of birds which are an integral part of the cismontane chaparral ecosystems.
Transmontane chaparral or desert chaparral —transmontane ("the other side of the mountain") chaparral—refers to the desert shrubland habitat and chaparral plant community growing in the rainshadow of these ranges. Transmontane chaparral features xeric desert climate, not Mediterranean climate habitats, and is also referred to as desert chaparral. Desert chaparral is a regional ecosystem subset of the deserts and xeric shrublands biome, with some plant species from the California chaparral and woodlands ecoregion. Unlike cismontane chaparral, which forms dense, impenetrable stands of plants, desert chaparral is often open, with only about 50 percent of the ground covered. Individual shrubs can reach up to 10 feet (3.0 m) in height.
Transmontane chaparral or desert chaparral is found on the eastern slopes of major mountain range systems on the western sides of the deserts of California. The mountain systems include the southeastern Transverse Ranges (the San Bernardino and San Gabriel Mountains) in the Mojave Desert north and northeast of the Los Angeles basin and Inland Empire; and the northern Peninsular Ranges (San Jacinto, Santa Rosa, and Laguna Mountains), which separate the Colorado Desert (western Sonoran Desert) from lower coastal Southern California. It is distinguished from the cismontane chaparral found on the coastal side of the mountains, which experiences higher winter rainfall. Naturally, desert chaparral experiences less winter rainfall than cismontane chaparral. Plants in this community are characterized by small, hard (sclerophyllic) evergreen (non-deciduous) leaves. Desert chaparral grows above California's desert cactus scrub plant community and below the pinyon-juniper woodland. It is further distinguished from the deciduous sub-alpine scrub above the pinyon-juniper woodlands on the same side of the Peninsular ranges.
Due to the lower annual rainfall (resulting in slower plant growth rates) when compared to cismontane chaparral, desert chaparral is more vulnerable to biodiversity loss and the invasion of non-native weeds and grasses if disturbed by human activity and frequent fire.
Transmontane (desert) chaparral typically grows on the lower (3,500–4,500 feet (1,100–1,400 m) elevation) northern slopes of the southern Transverse Ranges (running east to west in San Bernardino and Los Angeles counties) and on the lower (2,500–3,500 feet (760–1,070 m)) eastern slopes of the Peninsular Ranges (running south to north from lower Baja California to Riverside and Orange counties and the Transverse Ranges). It can also be found in higher-elevation sky islands in the interior of the deserts, such as in the upper New York Mountains within the Mojave National Preserve in the Mojave Desert.
The California transmontane (desert) chaparral is found in the rain shadow deserts of the following:
There is overlap of animals with those of the adjacent desert and pinyon-juniper communities.
Chaparral is a coastal biome with hot, dry summers and mild, rainy winters. The chaparral area receives about 38–100 cm (15–39 in) of precipitation a year. This makes the chaparral most vulnerable to fire in the late summer and fall.
The chaparral ecosystem as a whole is adapted to be able to recover from naturally infrequent, high-intensity fire (fires occurring between 30 and 150 years or more apart); indeed, chaparral regions are known culturally and historically for their impressive fires. (This does create a conflict with human development adjacent to and expanding into chaparral systems.) Additionally, Native Americans burned chaparral near villages on the coastal plain to promote plant species for textiles and food. Before a major fire, typical chaparral plant communities are dominated by manzanita, chamise Adenostoma fasciculatum and Ceanothus species, toyon (which can sometimes be interspersed with scrub oaks), and other drought-resistant shrubs with hard (sclerophyllous) leaves; these plants resprout (see resprouter) from underground burls after a fire.
Plants that are long-lived in the seed bank or serotinous with induced germination after fire include chamise, Ceanothus, and fiddleneck. Some chaparral plant communities may grow so dense and tall that it becomes difficult for large animals and humans to penetrate, but may be teeming with smaller fauna in the understory. The seeds of many chaparral plant species are stimulated to germinate by some fire cue (heat or the chemicals from smoke or charred wood). During the time shortly after a fire, chaparral communities may contain soft-leaved herbaceous, fire following annual wildflowers and short-lived perennials that dominate the community for the first few years – until the burl resprouts and seedlings of chaparral shrub species create a mature, dense overstory. Seeds of annuals and shrubs lie dormant until the next fire creates the conditions needed for germination.
Several shrub species such as Ceanothus fix nitrogen, increasing the availability of nitrogen compounds in the soil.
Because of the hot, dry conditions that exist in the California summer and fall, chaparral is one of the most fire-prone plant communities in North America. Some fires are caused by lightning, but these are usually during periods of high humidity and low winds and are easily controlled. Nearly all of the very large wildfires are caused by human activity during periods of hot, dry easterly Santa Ana winds. These human-caused fires are commonly ignited by power line failures, vehicle fires and collisions, sparks from machinery, arson, or campfires.
Though adapted to infrequent fires, chaparral plant communities can be eliminated by frequent fires. A high frequency of fire (less than 10-15 years apart) will result in the loss of obligate seeding shrub species such as Manzanita spp. This high frequency disallows seeder plants to reach their reproductive size before the next fire and the community shifts to a sprouter-dominance. If high frequency fires continue over time, obligate resprouting shrub species can also be eliminated by exhausting their energy reserves below-ground. Today, frequent accidental ignitions can convert chaparral from a native shrubland to non-native annual grassland and drastically reduce species diversity, especially under drought brought about by climate change.
There are two older hypotheses relating to California chaparral fire regimes that caused considerable debate in the past within the fields of wildfire ecology and land management. Research over the past two decades have rejected these hypotheses:
The perspective that older chaparral is unhealthy or unproductive may have originated during the 1940s when studies were conducted measuring the amount of forage available to deer populations in chaparral stands. However, according to recent studies, California chaparral is extraordinarily resilient to very long periods without fire and continues to maintain productive growth throughout pre-fire conditions. Seeds of many chaparral plants actually require 30 years or more worth of accumulated leaf litter before they will successfully germinate (e.g., scrub oak, Quercus berberidifolia; toyon, Heteromeles arbutifolia; and holly-leafed cherry, Prunus ilicifolia). When intervals between fires drop below 10 to 15 years, many chaparral species are eliminated and the system is typically replaced by non-native, invasive, weedy grassland.
The idea that older chaparral is responsible for causing large fires was originally proposed in the 1980s by comparing wildfires in Baja California and southern California. It was suggested that fire suppression activities in southern California allowed more fuel to accumulate, which in turn led to larger fires. This is similar to the observation that fire suppression and other human-caused disturbances in dry, ponderosa pine forests in the Southwest of the United States has unnaturally increased forest density. Historically, mixed-severity fires likely burned through these forests every decade or so, burning understory plants, small trees, and downed logs at low-severity, and patches of trees at high-severity. However, chaparral has a high-intensity crown-fire regime, meaning that fires consume nearly all the above ground growth whenever they burn, with a historical frequency of 30 to 150 years or more. A detailed analysis of historical fire data concluded that fire suppression activities have been ineffective at excluding fire from southern California chaparral, unlike in ponderosa pine forests. In addition, the number of fires is increasing in step with population growth and exacerbated by human-caused climate change. Chaparral stand age does not have a significant correlation to its tendency to burn.
Large, infrequent, high-intensity wildfires are part of the natural fire regime for California chaparral. Extreme weather conditions (low humidity, high temperature, high winds), drought, and low fuel moisture are the primary factors in determining how large a chaparral fire becomes. | [
{
"paragraph_id": 0,
"text": "Chaparral (/ˌʃæpəˈræl, ˌtʃæp-/ SHAP-ə-RAL, CHAP-) is a shrubland plant community found primarily in California, in southern Oregon and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intensity crown fires.",
"title": ""
},
{
"paragraph_id": 1,
"text": "Many chaparral shrubs have hard sclerophyllous evergreen leaves, as contrasted with the associated soft-leaved, drought-deciduous, scrub community of coastal sage scrub, found often on drier, southern facing slopes.",
"title": ""
},
{
"paragraph_id": 2,
"text": "Three other closely related chaparral shrubland systems occur in central Arizona, western Texas, and along the eastern side of central Mexico's mountain chains, all having summer rains in contrast to the Mediterranean climate of other chaparral formations. Chaparral comprises 9% of California's wildland vegetation and contains 20% of its plant species.",
"title": ""
},
{
"paragraph_id": 3,
"text": "The name comes from the Spanish word chaparro, which translates to \"place of the scrub oak\".",
"title": "Etymology"
},
{
"paragraph_id": 4,
"text": "In its natural state, chaparral is characterized by infrequent fires, with natural fire return intervals ranging between 30 years and over 150 years. Mature chaparral (at least 60 years since time of last fire) is characterized by nearly impenetrable, dense thickets (except the more open desert chaparral). These plants are flammable during the late summer and autumn months when conditions are characteristically hot and dry. They grow as woody shrubs with thick, leathery, and often small leaves, contain green leaves all year (are evergreen), and are typically drought resistant (with some exceptions). After the first rains following a fire, the landscape is dominated by small flowering herbaceous plants, known as fire followers, which die back with the summer dry period.",
"title": "Introduction"
},
{
"paragraph_id": 5,
"text": "Similar plant communities are found in the four other Mediterranean climate regions around the world, including the Mediterranean Basin (where it is known as maquis), central Chile (where it is called matorral), the South African Cape Region (known there as fynbos), and in Western and Southern Australia (as kwongan). According to the California Academy of Sciences, Mediterranean shrubland contains more than 20 percent of the world's plant diversity. The word chaparral is a loanword from Spanish chaparro, meaning place of the scrub oak, which itself comes from a Basque word, txapar, that has the same meaning.",
"title": "Introduction"
},
{
"paragraph_id": 6,
"text": "Conservation International and other conservation organizations consider chaparral to be a biodiversity hotspot – a biological community with a large number of different species – that is under threat by human activity.",
"title": "Introduction"
},
{
"paragraph_id": 7,
"text": "The California chaparral and woodlands ecoregion, of the Mediterranean forests, woodlands, and scrub biome, has three sub-ecoregions with ecosystem—plant community subdivisions:",
"title": "California chaparral"
},
{
"paragraph_id": 8,
"text": "For the numerous individual plant and animal species found within the California chaparral and woodlands ecoregion, see:",
"title": "California chaparral"
},
{
"paragraph_id": 9,
"text": "Some of the indicator plants of the California chaparral and woodlands ecoregion include:",
"title": "California chaparral"
},
{
"paragraph_id": 10,
"text": "Chaparral soils and nutrient composition",
"title": "California chaparral"
},
{
"paragraph_id": 11,
"text": "Chaparral characteristically is found in areas with steep topography and shallow stony soils, while adjacent areas with clay soils, even where steep, tend to be colonized by annual plants and grasses. Some chaparral species are adapted to nutrient-poor soils developed over serpentine and other ultramafic rock, with a high ratio of magnesium and iron to calcium and potassium, that are also generally low in essential nutrients such as nitrogen.",
"title": "California chaparral"
},
{
"paragraph_id": 12,
"text": "Another phytogeography system uses two California chaparral and woodlands subdivisions: the cismontane chaparral and the transmontane (desert) chaparral.",
"title": "California chaparral"
},
{
"paragraph_id": 13,
"text": "Cismontane chaparral (\"this side of the mountain\") refers to the chaparral ecosystem in the Mediterranean forests, woodlands, and scrub biome in California, growing on the western (and coastal) sides of large mountain range systems, such as the western slopes of the Sierra Nevada in the San Joaquin Valley foothills, western slopes of the Peninsular Ranges and California Coast Ranges, and south-southwest slopes of the Transverse Ranges in the Central Coast and Southern California regions.",
"title": "California chaparral"
},
{
"paragraph_id": 14,
"text": "In Central and Southern California chaparral forms a dominant habitat. Members of the chaparral biota native to California, all of which tend to regrow quickly after fires, include:",
"title": "California chaparral"
},
{
"paragraph_id": 15,
"text": "The complex ecology of chaparral habitats supports a very large number of animal species. The following is a short list of birds which are an integral part of the cismontane chaparral ecosystems.",
"title": "California chaparral"
},
{
"paragraph_id": 16,
"text": "Transmontane chaparral or desert chaparral —transmontane (\"the other side of the mountain\") chaparral—refers to the desert shrubland habitat and chaparral plant community growing in the rainshadow of these ranges. Transmontane chaparral features xeric desert climate, not Mediterranean climate habitats, and is also referred to as desert chaparral. Desert chaparral is a regional ecosystem subset of the deserts and xeric shrublands biome, with some plant species from the California chaparral and woodlands ecoregion. Unlike cismontane chaparral, which forms dense, impenetrable stands of plants, desert chaparral is often open, with only about 50 percent of the ground covered. Individual shrubs can reach up to 10 feet (3.0 m) in height.",
"title": "California chaparral"
},
{
"paragraph_id": 17,
"text": "Transmontane chaparral or desert chaparral is found on the eastern slopes of major mountain range systems on the western sides of the deserts of California. The mountain systems include the southeastern Transverse Ranges (the San Bernardino and San Gabriel Mountains) in the Mojave Desert north and northeast of the Los Angeles basin and Inland Empire; and the northern Peninsular Ranges (San Jacinto, Santa Rosa, and Laguna Mountains), which separate the Colorado Desert (western Sonoran Desert) from lower coastal Southern California. It is distinguished from the cismontane chaparral found on the coastal side of the mountains, which experiences higher winter rainfall. Naturally, desert chaparral experiences less winter rainfall than cismontane chaparral. Plants in this community are characterized by small, hard (sclerophyllic) evergreen (non-deciduous) leaves. Desert chaparral grows above California's desert cactus scrub plant community and below the pinyon-juniper woodland. It is further distinguished from the deciduous sub-alpine scrub above the pinyon-juniper woodlands on the same side of the Peninsular ranges.",
"title": "California chaparral"
},
{
"paragraph_id": 18,
"text": "Due to the lower annual rainfall (resulting in slower plant growth rates) when compared to cismontane chaparral, desert chaparral is more vulnerable to biodiversity loss and the invasion of non-native weeds and grasses if disturbed by human activity and frequent fire.",
"title": "California chaparral"
},
{
"paragraph_id": 19,
"text": "Transmontane (desert) chaparral typically grows on the lower (3,500–4,500 feet (1,100–1,400 m) elevation) northern slopes of the southern Transverse Ranges (running east to west in San Bernardino and Los Angeles counties) and on the lower (2,500–3,500 feet (760–1,070 m)) eastern slopes of the Peninsular Ranges (running south to north from lower Baja California to Riverside and Orange counties and the Transverse Ranges). It can also be found in higher-elevation sky islands in the interior of the deserts, such as in the upper New York Mountains within the Mojave National Preserve in the Mojave Desert.",
"title": "California chaparral"
},
{
"paragraph_id": 20,
"text": "The California transmontane (desert) chaparral is found in the rain shadow deserts of the following:",
"title": "California chaparral"
},
{
"paragraph_id": 21,
"text": "There is overlap of animals with those of the adjacent desert and pinyon-juniper communities.",
"title": "California chaparral"
},
{
"paragraph_id": 22,
"text": "Chaparral is a coastal biome with hot, dry summers and mild, rainy winters. The chaparral area receives about 38–100 cm (15–39 in) of precipitation a year. This makes the chaparral most vulnerable to fire in the late summer and fall.",
"title": "Fire"
},
{
"paragraph_id": 23,
"text": "The chaparral ecosystem as a whole is adapted to be able to recover from naturally infrequent, high-intensity fire (fires occurring between 30 and 150 years or more apart); indeed, chaparral regions are known culturally and historically for their impressive fires. (This does create a conflict with human development adjacent to and expanding into chaparral systems.) Additionally, Native Americans burned chaparral near villages on the coastal plain to promote plant species for textiles and food. Before a major fire, typical chaparral plant communities are dominated by manzanita, chamise Adenostoma fasciculatum and Ceanothus species, toyon (which can sometimes be interspersed with scrub oaks), and other drought-resistant shrubs with hard (sclerophyllous) leaves; these plants resprout (see resprouter) from underground burls after a fire.",
"title": "Fire"
},
{
"paragraph_id": 24,
"text": "Plants that are long-lived in the seed bank or serotinous with induced germination after fire include chamise, Ceanothus, and fiddleneck. Some chaparral plant communities may grow so dense and tall that it becomes difficult for large animals and humans to penetrate, but may be teeming with smaller fauna in the understory. The seeds of many chaparral plant species are stimulated to germinate by some fire cue (heat or the chemicals from smoke or charred wood). During the time shortly after a fire, chaparral communities may contain soft-leaved herbaceous, fire following annual wildflowers and short-lived perennials that dominate the community for the first few years – until the burl resprouts and seedlings of chaparral shrub species create a mature, dense overstory. Seeds of annuals and shrubs lie dormant until the next fire creates the conditions needed for germination.",
"title": "Fire"
},
{
"paragraph_id": 25,
"text": "Several shrub species such as Ceanothus fix nitrogen, increasing the availability of nitrogen compounds in the soil.",
"title": "Fire"
},
{
"paragraph_id": 26,
"text": "Because of the hot, dry conditions that exist in the California summer and fall, chaparral is one of the most fire-prone plant communities in North America. Some fires are caused by lightning, but these are usually during periods of high humidity and low winds and are easily controlled. Nearly all of the very large wildfires are caused by human activity during periods of hot, dry easterly Santa Ana winds. These human-caused fires are commonly ignited by power line failures, vehicle fires and collisions, sparks from machinery, arson, or campfires.",
"title": "Fire"
},
{
"paragraph_id": 27,
"text": "Though adapted to infrequent fires, chaparral plant communities can be eliminated by frequent fires. A high frequency of fire (less than 10-15 years apart) will result in the loss of obligate seeding shrub species such as Manzanita spp. This high frequency disallows seeder plants to reach their reproductive size before the next fire and the community shifts to a sprouter-dominance. If high frequency fires continue over time, obligate resprouting shrub species can also be eliminated by exhausting their energy reserves below-ground. Today, frequent accidental ignitions can convert chaparral from a native shrubland to non-native annual grassland and drastically reduce species diversity, especially under drought brought about by climate change.",
"title": "Fire"
},
{
"paragraph_id": 28,
"text": "There are two older hypotheses relating to California chaparral fire regimes that caused considerable debate in the past within the fields of wildfire ecology and land management. Research over the past two decades have rejected these hypotheses:",
"title": "Fire"
},
{
"paragraph_id": 29,
"text": "The perspective that older chaparral is unhealthy or unproductive may have originated during the 1940s when studies were conducted measuring the amount of forage available to deer populations in chaparral stands. However, according to recent studies, California chaparral is extraordinarily resilient to very long periods without fire and continues to maintain productive growth throughout pre-fire conditions. Seeds of many chaparral plants actually require 30 years or more worth of accumulated leaf litter before they will successfully germinate (e.g., scrub oak, Quercus berberidifolia; toyon, Heteromeles arbutifolia; and holly-leafed cherry, Prunus ilicifolia). When intervals between fires drop below 10 to 15 years, many chaparral species are eliminated and the system is typically replaced by non-native, invasive, weedy grassland.",
"title": "Fire"
},
{
"paragraph_id": 30,
"text": "The idea that older chaparral is responsible for causing large fires was originally proposed in the 1980s by comparing wildfires in Baja California and southern California. It was suggested that fire suppression activities in southern California allowed more fuel to accumulate, which in turn led to larger fires. This is similar to the observation that fire suppression and other human-caused disturbances in dry, ponderosa pine forests in the Southwest of the United States has unnaturally increased forest density. Historically, mixed-severity fires likely burned through these forests every decade or so, burning understory plants, small trees, and downed logs at low-severity, and patches of trees at high-severity. However, chaparral has a high-intensity crown-fire regime, meaning that fires consume nearly all the above ground growth whenever they burn, with a historical frequency of 30 to 150 years or more. A detailed analysis of historical fire data concluded that fire suppression activities have been ineffective at excluding fire from southern California chaparral, unlike in ponderosa pine forests. In addition, the number of fires is increasing in step with population growth and exacerbated by human-caused climate change. Chaparral stand age does not have a significant correlation to its tendency to burn.",
"title": "Fire"
},
{
"paragraph_id": 31,
"text": "Large, infrequent, high-intensity wildfires are part of the natural fire regime for California chaparral. Extreme weather conditions (low humidity, high temperature, high winds), drought, and low fuel moisture are the primary factors in determining how large a chaparral fire becomes.",
"title": "Fire"
}
] | Chaparral is a shrubland plant community found primarily in California, in southern Oregon and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean climate and infrequent, high-intensity crown fires. Many chaparral shrubs have hard sclerophyllous evergreen leaves, as contrasted with the associated soft-leaved, drought-deciduous, scrub community of coastal sage scrub, found often on drier, southern facing slopes. Three other closely related chaparral shrubland systems occur in central Arizona, western Texas, and along the eastern side of central Mexico's mountain chains, all having summer rains in contrast to the Mediterranean climate of other chaparral formations. Chaparral comprises 9% of California's wildland vegetation and contains 20% of its plant species. | 2002-02-25T15:43:11Z | 2023-12-26T07:56:15Z | [
"Template:About",
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"Template:Cite book",
"Template:Convert",
"Template:Citation needed",
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"Template:Short description",
"Template:Respell",
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] | https://en.wikipedia.org/wiki/Chaparral |
7,456 | CJD | CJD can mean: | [
{
"paragraph_id": 0,
"text": "CJD can mean:",
"title": ""
}
] | CJD can mean: Chojoongdong, South Korean newspaper
Christliches Jugenddorfwerk Deutschlands, German Christian educational institution
Creutzfeldt–Jakob disease, rare disease of the brain caused by prions
Candilejas Airport, Colombia | 2021-03-24T16:07:13Z | [
"Template:Disambiguation"
] | https://en.wikipedia.org/wiki/CJD |
|
7,460 | Clinker | Clinker may refer to:
Clinker may also refer to: | [
{
"paragraph_id": 0,
"text": "Clinker may refer to:",
"title": ""
},
{
"paragraph_id": 1,
"text": "Clinker may also refer to:",
"title": ""
}
] | Clinker may refer to: Cement clinker, a kilned then quenched cement product
Clinker, construction method for wooden boats
Clinker (waste), waste from industrial processes, particularly coal burning
Clinkers (album), a 1978 album by saxophonist Steve Lacy
Clinker brick, rough dark-coloured bricks
Clinker Peak, a volcanic peak in British Columbia, Canada
Clinker Ridge, a mountain ridge in British Columbia. Canada
Gary James Joynes, a.k.a. Clinker
Mount Price, formerly known as Clinker Mountain Clinker may also refer to: Small rocks that form in some ʻAʻā lava flows
Waste from coal-seam fires | 2023-02-14T06:15:29Z | [
"Template:Wiktionary",
"Template:Disambiguation"
] | https://en.wikipedia.org/wiki/Clinker |
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