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.
Constitutional Democratic Party The Constitutional Democratic Party (Russian: Конституционно-демократическая партия "Konstitutsionno-Demokraticheskaya Partiya" ), also called Constitutional Democrats, formally Party of People's Freedom, was a liberal political party in the Russian Empire, encompassing constitutional monarchists and right-wing republicans. Party members were called Kadets (or Cadets), from the abbreviation K-D of the party name (Конституционная Демократическая партия in Russian). Konstantin Kavelin's and Boris Chicherin's writings formed the theoretical basis of the party's platform. Historian Pavel Miliukov was the party's leader throughout its existence.