In 1903 the Communist party split into two groups - the Bolsheviks and the __ Answer:

The correct answer is: Mensheviks.<br /><br />The split between the Bolsheviks and the Mensheviks occurred in 1903 during the Second Congress of the Russian Social Democratic Labour Party. The Bolsheviks, led by Vladimir Lenin, advocated for a more radical and revolutionary approach to socialism, while the Mensheviks sought a more moderate and evolutionary approach. This division would later play a significant role in the events leading up to the Russian Revolution of 1917.