Analysis of information sources in references of the Wikipedia article "미국의 역사 (1964년~1980년)" in Korean language version.
...black civil rights; youth culture and trend-setting by young people; idealism, protest, and rebellion; the triumph of popular music based on Afro-American models and the emergence of this music as a universal language, with the Beatles as the heroes of the age...
Many of the most crucial events of the 1960s—including the civil rights victories, antiwar protests, and the sweeping cultural revolution—left few physical traces.