The 1960s is infamous for its counter-culture, folk music, Beatles, rock music, civil rights, feminism, Watts and Stonewall riots, the Viet Nam war, radical youth, hippies, campus unrest, generation gap and to a special few, the dangerous visions of the New Wave in science fiction. Black and white SF mutated into 1960s psychedelic Sci-Fi with new writers like Samuel R. Delany and Roger Zelazny.