this is what I found sorry if they are wrong
Red Summer: The race riots that occurred in more than three dozen cities in the United States during the summer and early autumn of 1919.
race riots: Riots caused by racial hatred or dissension. They occurred throughout the 20th century, especially before and during the Civil Rights Movement.
blackface: A style of theatrical makeup in which a white person blackens their face in order to represent a negro.
sorry if they are wrong I really did try to help☹️
