The Tulsa race riots, also known as the Tulsa race massacre or the Greenwood massacre, occurred in the affluent African American district of Greenwood in Tulsa, Oklahoma, on May 31 and June 1, 1921. The riots were sparked by a confrontation between a black man named Dick Rowland and a white female elevator operator, Sarah Page, which resulted in Rowland being arrested and accused of assault.

The incident escalated into a full-scale riot when a white mob gathered outside the courthouse where Rowland was being held, and rumors spread that there would be a lynching. The mob eventually made its way to the Greenwood district, looting and burning businesses and homes, and attacking African American residents. The violence resulted in the destruction of more than 35 city blocks in Greenwood, which was known as "Black Wall Street" due to its prosperous black-owned businesses.

The exact number of casualties from the riots is unknown, as many bodies were buried in unmarked graves, but estimates range from 100 to 300 deaths, mostly African Americans. Thousands of residents were left homeless and the economic impact on the community was devastating.

The Tulsa race riots are considered one of the worst incidents of racial violence in American history, and their legacy continues to impact the city of Tulsa and the African American community. In recent years, efforts have been made to uncover the true extent of the violence and provide reparations to the descendants of the victims.