Pride MonthThe majority of Pride events are held in June to commemorate the anniversary of the Stonewall Rebellion in New York City on June 28, 1969, which most historians consider to be the birth of the modern LGBT movement.
At the time, police raids on bars catering to LGBT patrons were common, but that night, the patrons of the Stonewall Inn fought back. While historical accounts of the night vary, the violent response ignited a national firestorm of activism that brought new visibility to the struggle for LGBT equality.
-GLADD, Pride Resource Kit