fashion for girls began to be more revealing in the late twentieth century, including clothing such as low-rise jeans, revealing tops, miniskirts, and spaghetti straps. With these new styles appearing in schools, dress codes have in some cases become more rigorous as a result. The dress codes in North American high schools typically resulted in tests that would determine if skirts or shorts were long enough. A common test would be used to measure the appropriate length of students' shorts/skirts. If a student's fingers extended past their clothing, then the clothing was considered a violation of the school dress code. Muslim World Islam, founded in the seventh century CE, laid out rules regarding the attire of both men and women in public. Gold adornments and silk clothes are prohibited for men to wear, as they are luxurious, but they are permissible for women. Men are also required to wear the ihram clothing while on Hajj, or annual pilgrimage to Mecca. It is required in Islam for women to wear a hijab at all times when in public, as part of the Islamic standard of modesty. Indian subcontinent Sikhism, which was founded in the Indian subcontinent around the end of the fifteenth century, also requires a dress code. Male Sikhs, who are members of the Khalsa are required to wear a turban at all times. Laws and social norms Cultural values, norms, and laws regarding clothing can vary by location. For example, the degree of nudity that is acceptable changes depending on location. In New Guinea and Vanuatu, there are areas where it is customary for men to wear nothing but penis sheaths in public, while women wear string skirts. In remote areas of Bali, women may go topless, which is less common in more Western countries. Most developed countries have generally no rules regarding specific clothing in most public scenarios. Private dress codes Many places have their own private dress code; these organizations may insist on particular dress codes or standards in particular situations. Such as for weddings, funerals, religious gatherings, etc. A study was conducted on two different Christian schools, both located in the United States were surveyed on their dress code appearance. Both Christian schools were run by a board of education which was independent with a Church, and both schools implemented school uniforms two years before they even got an interview to attend the private school. After