Question 3 • AVAHS 26-27 CCPS SS US History Gr 11 (45.0810000) YL IC (Fall)
The Manhattan Project was a secret U.S.-led research and engineering program during World War II. Its main accomplishment was developing the first atomic bombs, which were used against Hiroshima and Nagasaki in 1945. Radar development, labor mobilization, and the Selective Service Act were separate wartime efforts.
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