Which faction of the Marxist Russian Social Democratic Labour Party did Nikolai Krivoruchko join?
Bolsheviks The Bolsheviks, originally also Bolshevists or Bolsheviki (Russian: большевики, большевик (singular) ; ] ; derived from большинство "bol'shinstvo", "majority", literally meaning "one of the majority") were a faction of the Marxist Russian Social Democratic Labour Party (RSDLP) which split apart from the Menshevik faction at the Second Party Congress in 1903. The RSDLP was a revolutionary socialist political party formed in 1898 in Minsk in Belarus to unite the various revolutionary organisations of the Russian Empire into one party.
Communist Bund (Ukraine) The Communist Bund ("Kombund") was a Jewish Communist political party in Ukraine and Bielorussia, formed after a split in the General Jewish Labour Bund ("Bund"). In late 1918 Bund branches in cities like Bobruisk, Ekaterinoburg and Odessa formed 'leftwing Bund groups'. In February 1919 these groups (representing the majority in Ukrainian Bund movement) adopted the name 'Communist Bund', constituting themselves as an independent party of the Jewish proletariat. The "Kombund" supported Jewish national autonomy. The Communist Bund supported the Soviet side in the Russian Civil War.