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Landmark Supreme Court decision declares that racial segregation in public schools is unconstitutional. -
Rosa Parks refuses to give up her bus seat, sparking a year-long boycott. (1955-1956) -
Martin Luther King Jr. becomes its first president. -
Four African American students stage a sit-in at a segregated Woolworth's lunch counter. -
Martin Luther King Jr. delivers "I Have a Dream" speech to 250,000 demonstrators. -
Prohibits discrimination based on race, color, religion, sex, or national origin. -
Eliminates barriers to voting for African Americans. -
MLK is assassinated in Memphis, Tennessee.