The Greensboro sit-in was a civil rights protest that started in 1960, when young African American students staged a sit-in at a segregated Woolworth's lunch counter in Greensboro, North Carolina, and refused to leave after being denied service. The sit-in movement soon spread to college towns throughout the South.
The 15th amendment gave African american male citizens the right to vote. The 19th amendment gave women the right to vote which was not added until the early 1920's.