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Atomic Weapons
the U.S. government began funding its own atomic weapons development program. -
Attack on Pearl Harbor
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Roosevelt authorizes the Manhattan Project
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declared war on the United States
Nazi Germany and its Axis partners did this. -
Hitler Dies
Suicide. -
Little Boy Bomb was ready
The Little Boy bomb, except for the uranium payload, was ready. -
Fist Atomic Bomb Dropped
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President Truman Orders for bombs to be used
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Little Boy was dropped on Hiroshima
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Fat Man was dropped on Nagasaki
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Manchurian Strategic Offensive Operation.
Soviet infantry, armor, and air forces had launched the Manchurian Strategic Offensive Operation. -
end of World War II.
Japan formally surrenders. -
Japan announces formal surrender
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First Hydrogen Bomb was dropped1 Nov 1952
