A Brief History of the Sit-In Movement

Things Get Ugly
As the protest gathered momentum, long-simmering tensions came to a boil. On Feb. 6, a caller warned that a bomb had been set inside the Greensboro Woolworth's; the store was emptied and the business closed. The crowd moved to another five-and-dime store, which also was immediately closed. When the two stores reopened later in the month, the protests resumed and tensions flared once again. In this photo, a young white man who had joined the black students in sympathy is dragged from the counter and beaten by other white youths.

• Martin Luther King Jr. at Home