@Stalin according to Wikipedia The Soviet Union was established by the Bolsheviks in 1922, in place of the Russian Empire. At the time of the 1917 Revolution, the Russian Orthodox Church was deeply integrated into the autocratic state, enjoying official status. This was a significant factor that contributed to the Bolshevik attitude to religion and the steps they took to control it.Thus the USSR became the first state to have as one objective of its official ideology the elimination of existing religion, and the prevention of future implanting of religious belief, with the goal of establishing state atheism (gosateizm).
Under the doctrine of state atheism in the Soviet Union, there was a "government-sponsored program of conversion to atheism" conducted by Communists. The Communist regime targeted religions based on State interests, and while most organized religions were never outlawed, religious property was confiscated, believers were harassed, and religion was ridiculed while atheism was propagated in schools.
