The untold story of how a German cult, pioneering psychologists and secret LSD experiments sparked a gathering of hippie tribes in 1967 San Francisco that would change the world.

Teenie bopper, speed, stoned, turn on. These were just a few of the words that were defined for tourists as they took a bus ride down Haight Street in San Francisco during 1967 — the Summer of Love.

1967 was a landmark year bridging early ’60s pop sensibility with an emerging hippie culture. The "Summer of Love" brought young people and wannabes to San Francisco with their shared interest in ...

Every movement creates its own primary sources, and the hippies of 1967 San Francisco had a psychedelic one: The San Francisco Oracle. Published in 12 fantastic issues from 1966 to 1968 ...