September 13. 1997

 1997: The newly crowned Miss America, Kate Shindle, vows to dedicate her term to youth HIV prevention. When schools rein her in, she later tells Poz magazine, “Sometimes I feel like I’m banging my head against the wall.”

Source: http://www.thelavendereffect.org/2013/09/13/september-13-in-lgbtq-history/