aug 29, 1949 - Soviets Explode First Atomic Bomb
Description:
It would only be a matter of months before the U.S.S.R. exploded its own atomic bomb. The Soviets successfully tested their first nuclear device, called RDS-1 or "First Lightning" (codenamed "Joe-1" by the United States), at Semipalatinsk
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Cold War Timeline
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