In my lifetime:
"Fifty years ago, on Feb. 1, four black college students sat down at a whites-only Woolworth's lunch counter in Greensboro, NC. The "Greensboro Four", along with friends and supporters, returned to the counter every day for six months until the lunch counter was desegregated.
Their determination to resist Jim Crow laws inspired thousands of peaceful sit-ins and helped to end official segregation in the South. On Monday, in the same building that once housed the Woolworth's store, the International Civil Rights Center & Museum opens."
The complete story here: The Greensboro Four.