On 6 August 1945, the United States dropped one of the only two nuclear weapons used in combat on the city of Hiroshima, Japan. 70 years later, the city has been rebuilt and the war is long since done and over—the atomic bombings playing no small part in changing the Japanese calculus of surrender. But, what happened on 6 August and then 9 August (when we used the second of two nuclear weapons on Nagasaki)? The Washington Post has this nice piece with illustrations and maps and diagrams to explain it all.
Credit for the piece goes to RIchard Johnson and Bonnie Berkowitz.