"The city of San Francisco has been warned of a hippie invasion come summer in numbers almost too staggering to comprehend," declared one TV news reporter.

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.

an estimated 100,000 hippies, flower children and countless other free spirits descended upon San Francisco’s Haight-Ashbury neighborhood during the Summer of Love. And Michael Randall ...

“The Death of the Hippies” — the Atlantic’s 2015 requiem for its older article—opens by discussing the joy and hope that many ...

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 ...