Leon Trotsky Leon Trotsky Leon Trotsky (; born Lev Davidovich Bronstein; – 21 August 1940) was a Russian revolutionary, Marxist theorist, and Soviet politician whose particular strain of Marxist thought is known as Trotskyism. Initially supporting the Menshevik Internationalists faction within the Russian Social Democratic Labour Party, he joined the Bolsheviks ("majority") just before the 1917 October Revolution, immediately becoming a leader within the Communist Party. He would go on to become one of the seven members of the first Politburo, founded in 1917 to manage the Bolshevik Revolution. During the early days of the Russian Soviet Federative Socialist Republic (RSFSR) and
Lev Pisarzhevsky Lev Pisarzhevsky Lev Vladimirovich Pisarzhevsky (also transliterated as Pisarzhevskii: ; 13 February 1874 – 23 March 1938) was a Ukrainian Soviet chemist who studied peroxides, peracids, and solutions. His contribution to the theory of catalysis is best known for his attempt to relate the catalytic properties of solids to their electronic properties. Lev Vladimirovich Pisarzhevsky was born on 13 February 1874 Kishinev in the Bessarabia Governorate of the Russian Empire (now Chişinău, Republic of Moldova). His mother relocated the family to Odessa following his father's death, where Lev Pisarzhevsky worked to support the family and studied at a school of