Broadside announcing a rally in the 'panhandle' of Golden Gate Park on October 6, 1966 in reaction to the California law banning LSD and that similar rallies would also be held that day in New York, Los Angeles, London and Amsterdam. The event was envisioned by San Francisco Oracle editors Allen Cohen and Michael Bowen as an alternative to protest and as a celebration of the psychedelic life. The Grateful Dead (performing their new song "Alice D. Millionaire"), Janis Joplin, Big Brother and the Holding Company, and Wildflower played for approximately 800 people, and the event's success helped prepare the way for the Human Be-In on January 14, 1967.