Other contributors have said "What brought Communism to Russia in 1917?" is the same question as "What caused Communism in Russia?" If you believe that these are not asking the same thing and should be answered differently, click here
Vladimir I. Lenin introduced the concept of communism to Russia in 1917, although in truth he only created a socialist government. True communism, as Karl Marx envisioned it, was never introduced in...
Well, it depends on what exactly you mean by that. The USSR ceased to exist in December of 1991. Though the Communist party of the USSR was disbanded at the same time, later (in 1993) the Communist...