Soviet Union tested its first nuclear bomb on_________?

Soviet Union tested its first nuclear bomb on_________?A. 22 August 1949
B. 29 August 1949
C. 25 August 1950
D. 16 August 1944

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 on August 29, 1949.