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  to fight racism and violence against all people of color in the United States.
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  Between April 10 and April 15, Robinson went from being a Montreal Royal to Brooklyn Dodger.
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  four African American college students sat down at a lunch counter at Woolworth's
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  Supreme Court case that ruled segregation in public schools unconstitutional.
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  Rosa Parks refused to give up her seat to a white man on a bus in Montgomery, Alabama.
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  a key event in the American civil rights movement.
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  and signed into law by President Dwight D. Eisenhower on September 9, 1957. It was the first federal civil rights legislation since Reconstruction.
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  The riders flew to New Orleans, bringing to an end the first Freedom Ride of the 1960s.
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  He was jailed for participating in a nonviolent protest against segregation.
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  an estimated 250,000 people gathered in Washington, D.C., for the March on Washington for Jobs and Freedom
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  President Lyndon B. Johnson signed it into law on July 2, 1964
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  An act to enforce the fifteenth amendment to the Constitution of the United States
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  a march held in Selma, Alabama, in 1965 for the 600 people attacked on the Edmund Pettus Bridge.
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  who was shot to death on April 4, 1968, as he stood on the balcony of the Lorraine Motel in Memphis, Tennessee.