Timeline of a Social Movement By russiem Dec 9, 1924 Human Rights Movement Nov 10, 1950 Hemophile Movement Jun 27, 1969 Gay Liberation Movement Jun 27, 1970 America's Gay Pride Parade Dec 1, 1988 AIDS Awareness May 18, 2004 Gay-Marriage Legalization Nov 4, 2008 Proposition 8 Oct 28, 2009 Matthew Shepard Act Feb 23, 2011 Defense of Marriage Act Jun 24, 2011 Marriage Equity Act