Free Speech Movement at UC Berkeley. 1964.
Thousands of students joined the Berkeley Free Speech Movement, gathering the administration building at the University of California campus, to protest four students being disciplined for distributing political literature.
The next day, police arrested 773 who began a sit-in at Sproul Hall. 10,000 more students then went on strike and shut down the school. The Free Speech Movement had began in October, when three thousand students surrounded a police car for 36 hours.