13th Floor Elevators popularize “psychedelic” brandingOct 17, 1966Labels: 13th Floor, Psychedelic SoundsWikipedia
San Francisco Human Be-In previews the “Summer of Love”Jan 14, 1967Labels: Human Be-In, Golden GateWikipedia
Velvet Underground & Nico offer a darker, art-leaning alternativeMar 1, 1967Labels: Velvet Underground, NicoWikipedia
Are You Experienced introduces Hendrix’s guitar psychedeliaMay 12, 1967Labels: Jimi Hendrix, Are YouWikipedia
Sgt. Pepper turns psychedelic rock into pop cultureMay 26, 1967Labels: Sgt Pepper, The BeatlesWikipediaAP News
Grateful Dead’s Anthem of the Sun builds a “sound collage”Jul 16, 1968Labels: Grateful Dead, Anthem ofWikipedia
Woodstock becomes the mass gathering peak of the eraAug 15, 1969Labels: Woodstock, Woodstock FestivalBritannica
Altamont Free Concert becomes a widely cited turning pointDec 6, 1969Labels: Altamont FreeWikipediaTime
U.S. Controlled Substances Act reshapes the psychedelic contextOct 27, 1970Labels: Controlled Substances, LSDBritannicaTime