Remembering a 1966 'Sip-In' for Gay RightsThe Mattachine Society was one of the first gay rights groups in the country. On April 21, 1966 they staged a "Sip-In": they went into a tavern, declared that they were gay, ordered a drink — and waited to be served, or turned away, in order to sue.
Simon, Scott. “Remembering a 1966 'Sip-In' for Gay Rights.” NPR, NPR, 28 June 2008, www.npr.org/templates/story/story.php?storyId=91993823.