Bolshevik is the English translation of the Russian, which means the majority. In 1903, when the Second Congress of the Russian Social-Democratic Labor Party drew up its Party programme and constitution, the Marxists, led by Lenin, waged an intense struggle against Martov and other opportunists. It was Lenin's supporters who won the majority of the vote in the election of the central leading organ, and so they were called Bolsheviks. Henceforth, Marxists have been called Bolsheviks, and Marxism-Leninism, Bolshevism.