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President Roosevelt dies suddenly. President Harry Truman takes over the presidency.
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The first atomic bomb, the Trinity Test, is exploded at Alamogordo, New Mexico, after its production at Los Alamos.
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President Truman gives the go-ahead for the atomic bomb to be dropped on Hiroshima.
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Four hundred thousand mine workers begin to strike, with other industries following their lead.
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The National Basketball Association is founded.
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The Philippines is given their independence by the U.S. This ends four hundred and twenty-five years of dominance by the west.
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The Truman Doctrine is announced to the U.S. Congress. It granted $400 million in aid to Greece and Turkey to battle communism.
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The Soviet Union begins its land blockage of Berlin. This began the air raids.
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The United States withdraws its troops from Korea
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The Korean War begins its three year conflict when troops of North Korea invaded South Korea.