The hippie movement is a generalized term for the rebellion of the youth of the late 1960s and early 1970s in North America and Western Europe against the cultural and societal norms of previous generations which, hippies at the time felt, did not apply anymore. Common denominators of the movement were opposition to the Vietnam War, the quest for nuclear disarmament, rock n roll music, drugs experimentation and free love.
The hippie movement reached its culmination during the Summer of Love in 1967 and the Woodstock Festival in 1969, although its ripples were felt throughout the following decade. Check out this incredible series of photographs taken during those several years in which young people shook the world to its core.
For a more detailed piece on the now-mythical Woodstock, click here.