What was the Tulsa Race Massacre of 1921?

"Before May 31, 1921, the Greenwood District of Tulsa, Oklahoma, was a thriving neighborhood of 10,000 Black residents. There, Black families found success and community. They ran their own businesses, including barbershops, clothing stores, jewelers, restaurants, movie theaters, and more. There also were Black doctors, dentists, and lawyers to serve the neighborhood. 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"--Provided by publisher.