Communist parties today may or may not formally use the term "communist" in their name. Even if they do, not all follow a strict interpretation of any of the main 'schools' of communism ( Leninism, Stalinism or Trotskyism). The original Communist Parties first started after the creation of the Communist International by the Russian Bolsheviks. Communist parties have held power in 21 nations throughout history, first and most notably in the Soviet Union. The first international Marxist organization was called the Communist League, advocates of the principles put forth in Karl Marx and Friedrich Engels Communist Manifesto.Trotskyism and several other branches of self-proclaimed revolutionary Marxist-based thought contend that, under the influence of Stalinism, the Soviet-influenced Communist Parties drifted far away from the original.On Stalin's order, the Communist International was dissolved in 1943.