January 9

Baron Ferdinand Friedrich Georg Ludwig von Wrangel  (9 January 1797 [O.S. 29 December 1796] – 6 June [O.S. 25 May] 1870) was a Russian explorer and seaman, Honorable Member of the Saint Petersburg Academy of Sciences, a founder of the Russian Geographic Society. He is best known as chief manager of the Russian-American Company, in fact governor of the Russian settlements in present day Alaska. Von Wrangel was born in Pskov] into a Baltic German noble family of Wrangel. He graduated from the Naval Cadets College in 1815. He took part in Vasily Golovnin's world cruise on the ship Kamchatka in 1817–1819.

Vladimir Andreevich Steklov (9 January 1864 – 30 May 1926) was a Soviet/Russian mathematician, mechanician and physicist.

Steklov was born in Nizhny Novgorod, Russia. In 1887, he graduated from the Kharkov University, where he was a student of Aleksandr Lyapunov. In 1889–1906 he worked at the Department of Mechanics of this University. He became a full professor in 1896. During 1893–1905 he also taught theoretical mechanics in the Kharkov Technological Institute (now known as Kharkiv Polytechnical Institute). In 1906 he started working at Petersburg University. In 1921 he petitioned for the creation of the Institute of Physics and Mathematics. Upon his death the institute was named after him. The Mathematics Department split from the Institute in 1934. It is now known asSteklov Institute of Mathematics.

Petr Ivanovich Kashchenko was born on  Jan. 9, 1859, in Eisk, in present-day first Krasnodar Krai; died Feb. 19, 1920, in Moscow. He was a Russian psychiatrist and public figure.

In 1881, Kashchenko was expelled from Moscow University for revolutionary activity and exiled from the city. In 1885 he graduated from the medical department of the University of Kazan. From 1889 to 1904 he was director of the psychiatric hospital of the Nizhny Novgorod zemstvo (district assembly) in Liakhovo colony. As director of the Moscow Psychiatric Hospital from 1904 to 1906 and the St. Petersburg Psychiatric Hospital from 1907 to 1917 (they both now bear his name), Kashchenko transformed both into model medical institutions. In 1905 he participated in revolutionary events in Moscow. He was the organizer and chairman of the first Russian Central Statistical Bureau for the Registration of Psychiatric Patients. In May 1917, Kashchenko became head of the neuropsychiatric section of the Council of Medical Boards, and from 1918 to 1920 he directed the neuropsychiatric care subdivision of the People’s Commissariat of Public Health of the RSFSR. Kashchenko developed the principles of organization for the treatment of the mentally ill in Russia and advanced a number of progressive ideas (the need for outpatient care, the organization of patronage, the no-restraint system, occupational therapy).