Country Year starting1 JanuaryJohn James Bond, "Commencement of the Year", Handy-book of rules and tables for verifying dates with the Christian era, (London: 1875), 91–101.Mike Spathaky Old Style and New Style Dates and the change to the Gregorian Calendar: A summary for genealogists. Adoption of new calendar Holy Roman EmpireThe source has Germany, whose current area during the sixteenth century was a major part of the Holy Roman Empire, a religiously divided confederation. The source is unclear as to whether all or only parts of the country made the change. In general, Roman Catholic countries made the change a few decades before Protestant countries did. 1544Previously began on 25 December, with possible exceptions 1582 Spain, Portugal 1556 1582 Prussia, Denmark–Norway 1559 1700 Sweden 1559 1753Sweden started a conversion process in 1700, which was abandoned later that year due to the Great Northern War, and in 1712 returned to the Julian calendar. In 1753 Sweden switched to the Gregorian calendar. See Swedish calendar.France 1567Previously began on Easter Sunday, with several exceptions such as Lyon on 25 December and Vienne on 25 March 1582Southern Netherlands 1576Per decree of 16 June 1575. Hermann Grotefend, "Osteranfang" (Easter beginning), Zeitrechnung de Deutschen Mittelalters und der Neuzeit (Chronology of the German Middle Ages and modern times) (1891–1898). 1582 Lorraine 1579 1760 Holland, Zeeland 1583 1582 Dutch Republic except Holland and Zeeland 1583 1700 Scotland 1600Previously began on 25 March from 1155 1752 Russia 1700Previously began on 1 March from 988 until 1492, and 1 September from 1492 1918 Tuscany 1750Alexandre Dumas, Storia del governo della Toscana: sotto La casa de'Medici.Il calendario fiorentino. 1582Lorenzo Cattini, Legislazione toscana raccolta e illustrata, vol. 10, p. 208. British Empire excluding Scotland 1752Previously began on 25 March from 1155 17521751 in England only lasted from 25 March to 31 December. The dates 1 January to 24 March which would have concluded 1751 under the old calendar became part of 1752 when the beginning of the numbered year was changed from 25 March to 1 January. Republic of Venice 1522Previously began on 1 March 1582 Serbia 1804 1918 Ottoman Empire 1918 1917See Rumi calendar for details. It is often stated that Turkey adopted the Gregorian calendar in 1926 or 1927: in fact this is when it adopted the AD/CE epoch.
Country Year starting1 JanuaryJohn James Bond, "Commencement of the Year", Handy-book of rules and tables for verifying dates with the Christian era, (London: 1875), 91–101.Mike Spathaky Old Style and New Style Dates and the change to the Gregorian Calendar: A summary for genealogists. Adoption of new calendar Holy Roman EmpireThe source has Germany whose current area during the sixteenth century was a major part of the Holy Roman Empire, a religiously divided confederation. The source is unclear as to whether all or only parts of the country made the change. In general, Roman Catholic countries made the change a few decades before Protestant countries did. 1544Previously began on 25 December, with possible exceptions 1582 Spain, Portugal 1556 1582 Prussia, Denmark–Norway 1559 1700 Sweden 1559 1753Sweden started a conversion process in 1700, which was abandoned later that year due to the Great Northern War, and in 1712 returned to the Julian calendar. In 1753 Sweden switched to the Gregorian calendar See Swedish calendar.France 1567Previously began on Easter Sunday, with several exceptions such as Lyon on 25 December and Vienne on 25 March 1582Southern Netherlands 1576Per decree of 16 June 1575. Hermann Grotefend, "Osteranfang" (Easter beginning), Zeitrechnung de Deutschen Mittelalters und der Neuzeit (Chronology of the German Middle Ages and modern times) (1891–1898). 1582 Lorraine 1579 1760 Holland, Zeeland 1583 1582 Dutch Republic except Holland and Zeeland 1583 1700 Scotland 1600Previously began on 25 March from 1155 1752 Russia 1700Previously began on 1 March from 988 until 1492, and 1 September from 1492 1918 Tuscany 1750Alexandre Dumas, Storia del governo della Toscana: sotto La casa de'Medici.Il calendario fiorentino. 1582Lorenzo Cattini, Legislazione toscana raccolta e illustrata, vol. 10, p. 208. British Empire excluding Scotland 1752Previously began on 25 March from 1155 17521751 in England only lasted from 25 March to 31 December. The dates 1 January to 24 March which would have concluded 1751 under the old calendar became part of 1752 when the beginning of the numbered year was changed from 25 March to 1 January. Republic of Venice 1522Previously began on 1 March 1582 Serbia 1804 1918 Ottoman Empire 1918 1917See Rumi calendar for details. It is often stated that Turkey adopted the Gregorian calendar in 1926 or 1927: in fact this is when it adopted the AD/CE epoch.