A silent march to protest the police treatment of blacks during riots in East St. Louis, New York, New York, 1917. They marched down Fifth Avenue on that summer Saturday without saying a word. They chanted no chants, sang no protest songs. The only sounds were the disconcertingly mournful thuds of muffled drums and, of course, the marchers' footsteps on the hot pavement. It was a parade of silent protest. (Photo by Underwood Archives/Getty Images)