Sit-in movement | history & impact on civil rights movementsit-in movement, nonviolent movement of the U.S. civil rights era that began in Greensboro, North Carolina, in 1960. The sit-in, an act of civil disobedience, was a tactic that aroused sympathy for the demonstrators among moderates and uninvolved individuals. African Americans (later joined by white activists), usually students, would go to segregated lunch counters (luncheonettes), sit in all available spaces, request service, and then refuse to leave when denied service because of their race. In addition to creating disruptions and drawing unwanted publicity, the action caused economic hardship for the owners of the businesses, because the sit-in participants took up