The era called the sixties can be said to run from 1955 (the Montgomery bus boycott) to 1975 (when the mass movements had died down and most activists were moving on to new forms of struggle or non-political priorities). But many of the authors of those two dozen books end the era in 1970, not because the decade formally ended then but largely because that was when male-led, white student protest sharply declined. This dating negates high points of struggle by peoples of color (such as the Native American armed occupation of Wounded Knee in 1973) and by the women's movement, which reached its heights after 1970. By their dating of the era, our authors impose an overwhelmingly white male definition on it.