31 May 1921: The Tulsa Race Massacre takes place in the US. 29 | History

31 May 1921: The Tulsa Race Massacre takes place in the US. 29 black Americans are confirmed dead, but the figure may be as high as 300, and is no lower than about 75. 13-50 white Americans are killed. The target is the 'Black Wall Street' of Greenwood. After the event, insurance companies do not pay for the damage. It is largely suppressed in discussion until decades later.