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What were the names of the atomic bombs used on Hiroshima and Nagasaki?
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atomic bombings of Hiroshima and Nagasaki
A gigantic mushroom cloud rising above Hiroshima, Japan, on August 6, 1945, after a U.S. aircraft dropped an atomic bomb on the city, immediately killing more than 70,000 people.
The two atomic bombs used by the United States during World War II were named Little Boy and Fat Man.12
- Little Boy: This uranium-235 gun-assembly bomb was dropped on Hiroshima on August 6, 1945.12
- Fat Man: This plutonium-239 implosion-type bomb was dropped on Nagasaki on August 9, 1945.34
These events marked the first and only time atomic weapons have been used in warfare.35