Vladimir Ilyich Lenin (Russian: Владимир Ильич Ленин, IPA: [vlɐˈdʲimʲɪr ɪlʲˈjit͡ɕ ˈlʲenʲɪn] ( listen); born Vladimir Ilyich Ulyanov, Russian: Владимир Ильич Ульянов; 22 April [O.S. 10 April] 1870 – 21 January 1924) was a Russian communist revolutionary, politician and political theorist.