With his new skills, he became a part of the gay rights and anti-war movements, making flags and banners for the marches - including those lead by the legendary Harvey Milk. On his website, he tells the story of how he was honorably discharged from the Army while stationed in San Francisco and then taught himself how to sew. The simple but effect flag was designed by Gilbert Baker in June 1978. Perhaps the most iconic and most recognized symbol, the rainbow flag flies in support of the LGBT movement.