In this 1919 photo provided by the Chicago History Museum, police look through a broken window of a house during the race riots in Chicago. Broken furniture is strewn about the front yard. Hundreds of African Americans died at the hands of white mobs during “Red Summer,” as the summer of 1919 came to be known, but little is known nationally about this summer of violence 100 years later. (Chicago History Museum/The Jun Fujita negatives collection via AP)