The sexual revolution of post-World War II America changed sexual and gender roles profoundly.
With reports from hundreds of sub-Saharan African locales of male-male sexual relations and from about fifty of female-female sexual relations, it is clear that same-sex sexual relations existed in traditional African societies, though varying in forms and in the degree of public acceptance
In British law, Section 28 of the Local Government Act, enforced from 1988 until 2003, prohibited the promotion of homosexuality and teaching the acceptability of homosexuality as a "pretended family relationship".
The Hijras--men who dress and act like women--have been a presence in India for generations, maintaining a third-gender role that has become institutionalized through tradition.
The dominant ideology among politicized lesbians during the 1970s and 1980s, Lesbian Feminism was based on the premise that lesbianism and feminism were inextricably linked.
Harvey Milk, among the first openly gay man to be elected to public office in the United States, was assassinated in San Francisco's City Hall, making him the American gay liberation movement's most visible martyr.
By the early twentieth-century, YMCAs had become popular havens for men who sought sex with other men.
Compulsory heterosexuality is the assumption that women and men are innately attracted to each other emotionally and sexually and that heterosexuality is universal, a view that leads to an institutional inequality of power that privileges heterosexual males and denigrates women, especially lesbians.
On August 14, 2011, Mexico City celebrated its 1,000th same-sex wedding. Since the first same-sex marriages were performed in March 2010, 548 male couples and 452 female couples have been wed in the city.
Although Mexico City is the only jurisdiction in Mexico in which same-sex marriages are performed, Mexico's Supreme Court ruled in August 2010 that all marriages performed in Mexico City must be honored as legal in all 31 Mexican states.