Soviet atomic project

First Soviet atomic bomb test conducted

📅 29 August 1949

The USSR detonated its first atomic device at the Semipalatinsk test site in Kazakhstan. The test began decades of nuclear testing that exposed nearby Kazakh communities to radiation and environmental...

The Soviet Union conducts its first atomic test

📅 29 August 1949

The successful test ended the U.S. monopoly on nuclear weapons and intensified the arms race. Soviet scientific work and industrial mobilization occurred in a state system marked by secrecy, forced...