Before May 31, 1921, the Greenwood District of Tulsa, Oklahoma, was a thriving neighbourhood of 10,000 Black residents. There, Black families found success and community. They ran their own businesses, including barbershops, clothing stores, jewellers, restaurants, movie theatres, and more. There also were Black doctors, dentists, and lawyers to serve the neighbourhood. Then, in one weekend, all of this was lost. A racist mob tore through the streets, burning everything to the ground and killing scores of innocent residents. Learn about what led to one of the worst moments of racial violence in America's history in this nonfiction book for young readers. Series Overview: A natural expansion of the exceptional Who Was? series, What Was? focuses on compelling historical events, great battles, protests, and discoveries.