Drawn from the famed Black Star Collection, the show brings together 316 pictures that offer a portrait of the 20th century
A Charles Moore photo of the May, 1963, race riots in Birmingham, Ala., when the city was one of the most racially divided in the United States.
Martin Luther King (centre) in Birmingham, Ala., in a December, 1965, photograph by Bob Fitch.
Aug. 21, 1968: A searing photo of the invasion by Warsaw Pact troops, under Soviet orders, of Prague, Czechoslovakia (now the Czech Republic), by Hilmar Pabel.