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 The U.S. Civil Rights Movement  
 
Police and demonstrators

John Lewis, the leader of Student Nonviolent Coordinating Committee, is beaten by a state trooper March 7, 1965, as he attempts to march with 600 others from Selma to Montgomery, Alabama, in a right-to-vote demonstration.

Protestors crossing the Edmund Pettus Bridge in Selma walked into a force of state troopers and civilians who attacked them. Many marchers suffered broken bones and temporary blindness by tear gas.

The day’s violence, later known as “Bloody Sunday,” led King to call for another, larger march from Selma to Montgomery. One week after the attack, Johnson announced he would submit legislation to Congress to ensure all citizens would be able to vote. (Library of Congress)