Four college students sat down at a lunch counter that would not serve them, and refused to leave. Within two months the idea had spread to dozens of cities.
On February 1, 1960, four Black freshmen from North Carolina A&T sat down at the whites-only lunch counter at a Woolworth's in Greensboro, ordered coffee, and were refused. They did not leave. They sat, quietly, until the store closed.
They came back the next day with more students. And the next, with more still. The simple, disciplined act of occupying a seat you were denied, and refusing to react to abuse, was almost impossible to answer. You cannot argue with someone who is just sitting there.
The tactic exploded. Within weeks, sit-ins spread to lunch counters across the South, drawing thousands of students. They trained for it, practicing how to stay calm and nonviolent while being taunted, doused, and dragged away.
It worked. By that summer, Greensboro's Woolworth's began serving Black customers, and the sit-in movement helped give rise to a new, youth-driven engine of the civil rights movement, the Student Nonviolent Coordinating Committee.