The Bombing of Hiroshima and Nagasaki
On August 6, 1945, the first atomic bomb attack occured over Hiroshima, Japan. Three days later, Nagasaki, Japan was bombed. On August 15, 1945, World War II ended with the surrender of the Japanese.
Featured Documents
Documents
Potsdam Declaration: Proclamation Defining Terms for Japanese Surrender
White House Press Release on Hiroshima
Eyewitness Account of Atomic Bomb Over Nagasaki
Conversations at Farm Hall
Eyewitness Account of Hiroshima By Father John A. Siemes
The Voice of Hibakusha
Hiroshima: Under Atomic Bomb Attack
The Atomic Bombings of Hiroshima and Nagasaki by The Manhattan Engineer District (1946)
The Effects of Atomic Bombs on Hiroshima and Nagasaki by The United States Strategic Bombing Survey (1946)
The Yields of the Hiroshima and Nagasaki Nuclear Explosions (1.8 Mb PDF)
Conversations General Groves and Lt. Col. Rea, 25 August 1945
On My Participation In The Atom Bomb Project - Albert Einstein (1952)
Truman's Reflections on the Atomic Bombings (1953)
I think it was necessary to drop one, but the second one could have easily been avoided. I think Japan would have capitulated anyway.