the fatal stabbing of a black teenager Meredith Hunter by Hells Angels security guards. See also Acid rock Counterculture of the 1960s Hippies History of LSD Psychedelic Psychedelic art Psychedelic experience Psychedelic film Psychedelic music References Stafford, Peter. (2003). Psychedelics. Ronin Publishing, Oakland, California. . Notes External links Psychedelia 1960s in the United States 1960s in the United Kingdom 1960s