The CPRF can trace its origins to the Russian Social Democratic Labour Party which was established in 1898 and the party split in 1903 into a Menshevik (minority) and Bolshevik (majority) faction; the latter, led by Vladimir Lenin, is the direct ancestor of the Communist Party of the Soviet Union (CPSU) and is the party that seized power in the October Revolution of 1917. After the CPSU was banned in 1991 by then–Russian President Boris Yeltsin in the aftermath of the failed coup attempt, the CPRF was founded at the Second Extraordinary Congress of Russian Communists on 14 February 1993 as the successor organisation of the Communist Party of the Russian Soviet Federative Socialist Republic (CPRSFSR). It was the ruling party in the State Duma, the lower house of the Russian Federal Assembly from 1998 to 1999. , the party has 160,000 members.