Observed annually on November 20, Transgender Day of Remembrance honors the memory of those whose lives were lost in acts of anti-transgender violence.
From GLAAD: “The Transgender Day of Remembrance seeks to highlight the losses we face due to anti-transgender bigotry and violence. I am no stranger to the need to fight for our rights, and the right to simply exist is first and foremost,” said Transgender Day of Remembrance founder Gwendolyn Ann Smith. “With so many seeking to erase transgender people — sometimes in the most brutal ways possible — it is vitally important that those we lose are remembered, and that we continue to fight for justice.”
This is a powerful (grievously so) listing of many of the people that have died because of anti-transgender violence: Memorializing 2012.
And from GLAAD a timeline of transgender visibility: