The counterculture movement was the result of a generation that rejected social norms and traditional ways of previous decades.
The Counterculture Hippie Movement of the 1960s and 1970s
Hippies in the sun
Hippies, protests and music: The brief history of 1960s Counterculture
Counterculture Art
Robert Motherwell 1960s: Days of Rage
David Harris 1960s: Days of Rage
Hippie - Wikipedia
How the hippie counterculture movement changed America — Roosevelt
What Is Pacifism (and Being a Pacifist)?
The Hello Girls of World War I