Sit-in protests were a nonviolent strategy used during the civil rights movement in the 1960s to challenge racial segregation and discrimination. The sit-ins involved African American activists sitting at segregated lunch counters, restaurants, and other public spaces where they were denied service based on their race.

One of the most famous sit-in protests took place on February 1, 1960, in Greensboro, North Carolina, when four college students from North Carolina A&T State University sat at a whites-only lunch counter at a Woolworth's store and refused to leave. Their peaceful protest sparked a wave of sit-ins across the South, with thousands of students and activists participating in similar actions.

The sit-ins drew national attention to the injustices of segregation and helped to galvanize support for the civil rights movement. Over time, many businesses desegregated their facilities in response to the protests, marking a significant victory for the movement.

The sit-in protests exemplified the power of nonviolent direct action and civil disobedience in the fight for racial equality and justice. The courage and persistence of the activists who participated in these protests paved the way for the dismantling of segregation and the advancement of civil rights in the United States.