LGBTQIAP Awareness Days (source: https://en.wikipedia.org/wiki/List_of_LGBT_awareness_days) Year Name Date Notes Started LGBT History Month (UK) February 2005 International Transgender Day of Celebrated to bring awareness to transgender people and their identities as well as March 31 2009 Visibility recognize those that helped fight for rights for transgender people Day varies from year to year. Started by GLSEN to raise awareness for bullying in Day of Silence April 1996 LGBT youth Official website Lesbian Visibility Day April 26 2008 International Day Against Began in 2004, date chosen as May 17 to commemorate the ending of classifying Homophobia, Transphobia, and May 17 2004 homosexuality as a disease by the World Health Organization in 1990 Biphobia Official website Celebrated to honor Harvey Milk, assassinated politician, on his birthday, it is Harvey Milk Day May 22 2010 celebrated officially in California, Milk's home state Official website Pan (Pansexual and Panromantic) Originally started on Tumblr May 24 2015 Visibility Day Official website June is celebrated as Pride in honor of the Stonewall Riots, though Pride events LGBT Pride Month June occur all year round. It also marks the month that same-sex marriage was legalized in the United States Legalization of Same-Sex Marriage in June 26 2015 Decision made by SCOTUS (Supreme Court Of The United States) the U.S. Anniversary To remember the Stonewall Riots that are described as the start of the gay and Stonewall Riots Anniversary June 28 trans Liberation Movement in the United States Begins the Sunday before Celebrate Bisexuality Day Bisexual Awareness Week September 2014 Official website Celebrate Bisexuality Day September 23 1999 Also referred to as Bisexual Pride Day, CBD, Bisexual Pride and Bi Visibility Day First celebrated in 1994 in October. It was declared a national History month by LGBT History Month (USA) October 1994 President Barack Obama in 2009. The month was created with the intent to encourage openness and education about LGBT history and rights National Coming Out Day October 11 1988 Official website Year Name Date Notes Started Spirit Day October 15 2010 Official website Celebrated in October to commemorate the first intersex protest, which took place Intersex Awareness Day October 26 1996 in Boston, MA Official website Dates vary and may extend into November Asexual Awareness Week October 2010 Official website Intersex Day of Remembrance Marks the birthday of Herculine Barbin November 8 (Intersex Solidarity Day) Official website Transgender Day of Remembrance November 20 1999 Ace Visibility Day November 26 2015 Originally started on Tumblr Recognized in 1988 by the United Nations World AIDS Day December 1 Official website Pansexual / Pan romantic Pride Day December 8 Human Rights Day December 10 Official website .