On the fifth day of the Alabama voter registration march, thousands of civil rights marchers are massed together to begin their three-mile walk on the capitol in Montgomery, Ala., on March 25, 1965. Leading the group is Dr. Martin Luther King Jr., center, who will give a closing speech, with his wife, Coretta Scott King, at right. On August 6, 1965, U.S. Congress passed the Voting Rights Act, and President Lyndon B. Johnson signed it, which ordered federal officials to oversee the local voter registrations. (AP Photo)