Manhattan Project (1942‑1945): Building the First Atomic Bomb
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YouTubeHistory Observatory
Manhattan Project (1942‑1945): Building the First Atomic Bomb
From Einstein’s 1939 warning to the July 16, 1945 Trinity test, the Manhattan Project transformed a secret wartime effort into the world’s first atomic weapons. Led by General Leslie Groves and scientific director J. Robert Oppenheimer, the U.S. marshaled more than 130,000 people across sites at Los Alamos, Oak Ridge, and Hanford. By August ...
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