Up to 125,000 people marched in the first LGBT civil rights march in Washington, D.C.
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President Barack Obama officially declared his support of same-sex marriage.
The rainbow flag was flown for the first time at the San Francisco Gay Freedom Day Parade.
Tom Bradley, Mayor of Los Angeles, signed the first US gay rights bill.
Carl Nassib became the first openly-gay NFL player to play a regular-season game.
Massachusetts became the first US state to legalize same-sex marriage.