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Gleen Seaburg first discovered plutonium on Febuary 23, 1941, a crucial element in the atomic bombs used on Hiroshima and Nagasaki.
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Two atomic bombs, Fat man and Little Boy, were dropped on Hiroshima and Nagasaki to end WWII
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FDR gives the okay to start the production of an atomic bomb, this becomes known as the Manhattan Project.
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Pearl Harbor BombingJapan bombs Pearl Harbor crippling Americas navy and throwing them into WWII.
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Physist Robert Oppenheimer was appointed to director of the Manhattan Project which was a secret US government program that build and tested the nuclear bomb.
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First controlled nuclear fission reaction is produced by Enrico Fermi at the University of Chicago.
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Franklin Roosevelt dies. Harry Truman is named the 33rd President of the US.
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Allied forces take over Western Germany and the Axis begins to collapse after Mussolini's death.
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American intelligence discovers the only obstacle to peace with Japan is 'unconditional surrender'.
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The world's first atomic detonation takes place in the 'Trinity Test' at Alamogordo, New Mexico.
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President Truman ordered the bombs to be used on Japan.
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On August 1st 1945 America dropped 5 million leaflets on Nagasaki warning of what was to come.
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Hiroshima BombingThe atomic bomb, little boy, was dropped on Hiroshima.
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The atomic bomb, Fat Man, the more powerful of the two, was dropped on Nagasaki.
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Jpan formally surrendered after Hiroshima and Nagasaki were destroyed.
