Pacific · United States vs Japan
Atomic Bombing of Hiroshima
6 August 1945
The B-29 Enola Gay dropped a uranium bomb over the centre of Hiroshima at 08:15, the first use of a nuclear weapon in war. About 70,000 people were killed at once and the toll had roughly doubled by the end of the year. Truman's statement that afternoon warned of a rain of ruin if Japan did not surrender.
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Day by day
— 08:15
The B-29 Enola Gay left Tinian at 02:45 and ran in on Hiroshima from the east at 31,000 feet, aiming at the T-shaped Aioi Bridge in the middle of the city. Little Boy, a uranium gun-type bomb of about 15 kilotons, was released at 08:15 and burst 43 seconds later some 580 metres above the Shima Hospital, 240 metres south-east of the aiming point. Almost every building within two kilometres was destroyed or burned; about 70,000 people were killed at once and roughly as many again had died by the end of the year.
