On April 20, 1969, an era of student rebellions that had rocked American campuses at Berkeley, Columbia, San Francisco State, and Harvard reached a culmination of sorts with the triumphant exit of armed black students from Cornell’s Willard Straight student union building after a two-day occupation. The students had just won sweeping concessions from the university’s administration, including a pledge to urge faculty governing bodies to nullify reprimands of several members of the Afro-American Society (AAS) for previous campus disruptions on behalf of starting up a black studies program, judicial actions that had prompted the takeover. White student supporters cheered the outcome. And when the faculty, at an emergency meeting attended by 1,200 professors, initially balked at the administration’s request to overturn the reprimands, the radical Students for a Democratic Society (SDS) led a body that grew to six thousand students in a three-day possession of the university’s Barton gymnasium. Amid threats of violence by and against the student activists, the faculty, in a series of tumultuous meetings, voted to reverse themselves, allowing the crisis …