Leon Trotsky in a Mexican prison for the murder. Stalin presented Mercader with an Order of Lenin in absentia. Trotsky's ideas formed the basis of Trotskyism, a major school of Marxist thought that opposes the theories of Stalinism. He was written out of the history books under Stalin, and was one of the few Soviet political figures who was not rehabilitated by the government under Nikita Khrushchev in the 1950s. Leon Trotsky was born Lev Davidovich Bronstein on 7 November 1879, the fifth child of a Ukrainian-Jewish family of wealthy farmers in Yanovka or Yanivka, in the Kherson governorate of the Russian
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