Left communism is the range of communist viewpoints held by the communist left , which criticizes the political ideas and practices espoused — particularly following the series of revolutions which brought the First World War to an end — by Bolsheviks and by social democrats . Left communists assert positions which they regard as more authentically Marxist and proletarian than the views of Marxism – Leninism espoused by the Communist International after its first congress ( March 1919 ) and during its second congress ( July – August 1920 )
first congress
1st Congress of the Comintern
Communism