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A campus chorus sang “believe in freedom” around midday, and several students read Alan Ginsberg’s 1955 poetic anthem to generational independence, “Howl,” with successive groups shouting out the lines so those in the back of the crowd could hear.

In the early afternoon, hundreds of protesters split off from the crowd and marched down Bancroft Way into downtown Berkeley, blocking traffic as they waved signs and called out chants including “student power!”