Today in history: Atomic bomb dropped on Hiroshima

Hiroshima Marks 70-Year Anniversary of Atomic Bombing



On August 6, 1945, the United States became the first an only nation to use an atomic weapon during war when Enola Gay -- an American bomber -- dropped a five-ton atomic bomb on the Japanese city of Hiroshima.

The incredibly powerful blast immediately killed 80,000 people and tens of thousands more died from wounds and radiation poisoning in the following weeks. Three days after the first bomb was dropped, the U.S. dropped a bomb on the Japanese city of Nagasaki, killing approximately 40,000 more people.

While this action marked the end of World War II, many historians argue that it also instigated the Cold War.

See the photo gallery below for a look back on Hiroshima:

13 PHOTOS
Looking back: Atomic bomb dropped on Hiroshima
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Today in history: Atomic bomb dropped on Hiroshima
UNSPECIFIED - CIRCA 1754: Hiroshima after the dropping of the atom bomb in August 1945. USAF photograph. (Photo by Universal History Archive/Getty Images)
UNSPECIFIED - CIRCA 1754: Survivors of the explosion of the Atom bomb at Hiroshima 1945 suffering the effects of radiation. ICRC photograph. (Photo by Universal History Archive/Getty Images)
World War II, after the explosion of the atom bomb in August 1945, Hiroshima, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
World War II, after the explosion of the atom bomb in August 1945, Hiroshima, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
World War II, firestorms after the explosion of the atom bomb in August 1945, Hiroshima, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
1945: Atomic bomb damage at Hiroshima with a burnt out fire engine amidst the rubble. (Photo by Keystone/Getty Images)
World War II, Human shadow on bank steps, in Hiroshima after the explosion of the atom bomb in August 1945, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
World War II, after the explosion of the atom bomb in August 1945 Hiroshima, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
World War II, shadow of a tap on a pipeline at Hiroshima after the explosion of the atom bomb in August 1945, Japan. (Photo by: Universal History Archive/UIG via Getty Images)
6th August 1945: The twisted wreckage of a theatre, located 800 metres from the epicentre of the atomic explosion at Hiroshima. (Photo by Keystone/Getty Images)
HIROSHIMA, JAPAN: This September 1945 file picture shows the remaining of the Hiroshima Prefectural Industry Promotion Building, known as the Atomic-Bomb Dome, which was later preserved as a monument. (Photo credit should read AFP/Getty Images)
HIROSHIMA, JAPAN - NOVEMBER 26: Atomic Bomb Dome stands among fallen autumn leaves at the Hiroshima Peace Memorial Park on November 26, 2014 in Hiroshima, Japan. (Photo by Yuriko Nakao/Getty Images)
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