The Statute (also referred to as the Rules, Charter and Constitution) was the party's by-laws and controlled life within the CPSU. The 1st Statute was adopted at the 2nd Congress of the Russian Social Democratic Labour Partythe forerunner of the CPSU. How the Statute was to be structured and organized led to a schism within the party, leading to the establishment of two competing factions; Bolsheviks (literally "majority") and Mensheviks (literally "minority"). The 1st Statute was based upon Lenin's idea of a centralized vanguard party. The 4th Congress, despite a majority of Menshevik delegates, added the concept of democratic centralism to Article 2 of the Statute. The 1st Statute lasted until 1919 when the 8th Congress adopted the 2nd Statute. It was nearly five times as long as the 1st Statute and contained 66 articles. It was amended at the 9th Congress. At the 11th Congress, the 3rd Statute was adopted with only minor amendments being made. New statutes were approved at the 17th and 18th Congresses respectively. The last party statute, which existed until the dissolution of the CPSU, was adopted at the 22nd Congress.