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President Roosevelt approves for the production of atomic bombs
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Atomic bombs are created. Uranium bomb in Oak Ridge, Tennessee. Plutonium bomb in Hanford, Washington. Weapons lab in Los Alamos, New Mexico
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Harry S. Truman becomes president
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Germany surrenders
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The uranium bomb called Little Boy is dropped on Hiroshima.
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The plutonium bomb called Fat Man is dropped on Nagasaki.
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5 days after the bomb attack on Nagasaki, Japan surrenders.
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North Korea invades South Korea starting the Korean War
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Dwight D. Eisenhower is inaugurated
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President Eisenhower gives the speech, "Atoms for Peace" at the United Nations in hopes of using nuclear energy for peace