Lev Karakhan Lev Karakhan Lev Mikhailovich Karakhan ("Karakhanian") Armenian Կարախանյան Լեւոն Միքայելի, Russian Лев Михайлович Карахан (20 January 1889, Tiflis – 20 September 1937, Moscow) was an ethnic Armenian-born Russian revolutionary and a Soviet diplomat. A member of the RSDLP from 1904. At first a Menshevik, he joined the Bolsheviks in May 1917. In October 1917, he was member of the Revolutionary Military Council; then served as secretary of the Soviet delegation at the Brest-Litovsk peace talks together with Leon Trotsky and Adolph Joffe. In 1918-1920 and 1927–1934, he was the Deputy People's Commissar for Foreign Affairs. In 1919, he issued a
Lev Landau Lev Landau Lev Davidovich Landau (22 January 1908 – April 1968) was a Soviet physicist who made fundamental contributions to many areas of theoretical physics. His accomplishments include the independent co-discovery of the density matrix method in quantum mechanics (alongside John von Neumann), the quantum mechanical theory of diamagnetism, the theory of superfluidity, the theory of second-order phase transitions, the Ginzburg–Landau theory of superconductivity, the theory of Fermi liquid, the explanation of Landau damping in plasma physics, the Landau pole in quantum electrodynamics, the two-component theory of neutrinos, and Landau's equations for "S" matrix singularities. He received the 1962 Nobel