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Manhattan Project
The Manhattan Project was a U.S. government-run effort to research, build, and then use an atomic bomb. -
Jefferson memorial is built
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The G.I. Bill of Rights
The GI Bill was a federal effort to provide financial and social benefits to World War II veterans. -
Franklin D. Roosevelt become president
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Use of the atomic bomb
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United States enters the United Nations
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The hydrogen bomb is used for the first time
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The 22nd Amendment is passed
No person shall be elected to the office of the President more than twice. -
Dwight D. Eisenhower is elected president
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The Nuclear Test
The testing of atomic bombs by exploding them either above the ground.