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The Manhattan Project (or the creation of the first atomic bomb) began in 1942, although it had been discussed as early as 1939. The bombs were esentially part of an arms race against the Nazi scientists. It ended in 1946 a little after we bombed Japan because it wasn't perfect when we used it on Hiroshima and Nagasaki.

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11y ago

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The Manhattan Project ended in 1945

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15y ago
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Q: How long did the Manhattan Project take till it was finished?
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