Today’s Financial Times has a remarkable article about the Tulsa riot of 1921 —essentially a bout of ethnic cleansing—its disappearance from official memory for over fifty years and the long struggle of the survivors and their descendants for recognition and compensation:
Historians call the firestorm that convulsed Tulsa from the evening of May 31 into the afternoon of June 1 the single worst event in the history of American race relations. To most Tulsans it is simply “the riot”. But the carnage had nothing in common with the mass protests of Chicago, Detroit and Newark in the 1960s or the urban violence that laid siege to Los Angeles in 1992 after the white police officers who assaulted Rodney King were acquitted. The 1921 Tulsa race riot owes its name to an older American tradition, to the days when white mobs, with the consent of local authorities, dared to rid themselves of their black neighbours. The endeavour was an opportunity “to run the Negro out of Tulsa”.
The whole thing is worth reading.