A sit-down strike at a Woolworth luncheon counter in Greensboro, North Carolina in 1960
CREDIT: "Ronald Martin, Robert Patterson, and Mark Martin stage sit-down strike after being refused service at a F.W. Woolworth luncheon counter, Greensboro, N.C.," 1960. Prints and Photographs Division, Library of Congress. Reproduction Number LC-USZ62-114749.