Bolshevik
At the party congress in 1903, members disagreed with each other. The party divided into two groups, the Bolsheviks and the Mensheviks. They were called Bolsheviks because it means "those who are more." Vladimir Ilyich Lenin was the leader of the Bolshevik group. The more moderate group, the Mensheviks (meaning "those of the minority") were led by Julius Martov. Although the Bolsheviks were called "those who are more", before 1917 there were more Mensheviks. Many of Lenin's opponents were afraid that he liked to control things too much.