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The Atom is split by John Crockcroft and E.T.S. Walton of Great Britain thereby proving Einstein's Theory of Relativity
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The first Nuclear Fission is announced by Lise Meitner and Otto Frisch
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Robert Oppenheimer realized the military possibilities of nuclear fission
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Einstein wrote too Roosevelt about the use of Uranium as a new source of energy leading to the formation of the Committee on Uranium
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World War II Begins
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Plutonium is discovered by Glenn Seaborg
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FDR gives the go ahead for the development of an Atomic Weapon
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A Uranium bomb, detonated over Hiroshima,Japan and killed between 90,000 and 100,000 people immediately
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The second atomic bomb to hit japan, Fat Man, was scheduled to be dropped at Kokura. However, because of poor weather the target was moved to Nagasaki
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The U.S. drops warning leaflets concerning another atomic bomb on Nagasaki, the day after the bomb was dropped
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Japan announces its formal surrender
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