Short answers, pulled from the story.
The Scientific-Humanitarian Committee, founded in Berlin in 1897 by doctor and writer Magnus Hirschfeld, is the earliest known LGBTQ rights organization. It campaigned publicly against Paragraph 175, the German law making sex between men illegal.
France decriminalized homosexuality in 1791, becoming the first nation to do so. The step is linked in part to Jean Jacques Régis de Cambacérès, one of the authors of the Napoleonic Code.
The Stonewall riots of 1969 occurred when gay men, lesbians, drag queens, and transgender women resisted a police raid at a bar in New York City. They are widely treated as the catalyst for the Gay Liberation movement, directly leading to the formation of the Gay Liberation Front and the Gay Activists' Alliance.
The Netherlands was the first country to allow same-sex marriage, in 2001. Iceland later became the first country to legalize it through a unanimous legislative vote, 49 to 0, on the 11th of June 2010.
William Dorsey Swann, born enslaved in Hancock, Maryland, is the first person known to describe himself as a drag queen and the first American on record to pursue legal and political action to defend the LGBTQ community's right to assemble. During the 1880s and 1890s he organized drag balls in Washington, D.C., and was arrested in what became the first documented case of arrests for female impersonation in the United States, on the 12th of April 1888.
From the 1970s through the 1990s, leaders of the lesbian and gay rights movement sometimes excluded masculine lesbians, feminine gay men, transgender people, and bisexuals. Research by Roffee and Waling in 2016 found that LGBTQ individuals frequently face microaggressions from within their own community. Ongoing debates involve tactics, identity categories, inclusion of bisexual and transgender people, and whether fixed minority-group frameworks help or limit the movement's goals.