American mathematician | Fellow of the Association for Women in Mathematics (2021), Fellow of the American Mathematical Society (2021) | Benjamin Bosse High

Norwegian researcher | January 9, 1971 - Sheepshead Bay: May 1, 1891 | Jarl Inge Wærness (Jarl Inge Waerness) | January 9, 1971 - Sheepshead Bay: May 1, 1891

Azerbaijani mathematician | Golden Pen Prize (media award) | Lyceum of Physics, Mathematics and Computer Science | Goydərə, Gobustan: January 9, 1971

American mathematician | Harvard University, University of California, Berkeley | New York City: January 9, 1968 - Pierrefonds: May 28, 1924 | Jeremy Avigad

Slovene philosopher | University of Ljubljana | Slovenj Gradec: January 9, 1962 - Arlington County: August 7, 2010 | Renata Salecl | Slovenj Gradec: January 9

Czech astrophysicist and physicist | Charles University | January 9, 1959 - Prague: December 15, 1989 | Petr Kulhánek (Petr Kulhanek) | January 9, 1959

British philosopher | Guggenheim Fellowship | England: January 9, 1958 - London: April 5, 2022 | Stephen Neale | England: January 9, 1958 - London: April 5, 2022

French scientist | Neuilly-sur-Seine: January 9, 1957 - Tinchebray: June 20, 1845 | Jean-Claude Heudin | Neuilly-sur-Seine: January 9, 1957 - Tinchebray: June 20, 1845

American electrical engineer | Massachusetts Institute of Technology | New York City: January 9, 1957 - London: September 29, 1703 | Christopher Rose | New

Russian scientist | Merited worker of culture of the Russian Federation | Saint Petersburg State Institute of History, Saint Petersburg State University

Chuvash State Pedagogical University (1977) | January 9, 1955 - Sèvres: June 16, 1967 | Aleksandr Gusev | January 9, 1955 - Sèvres: June 16, 1967

German mathematician (1953- ) | Gay-Lussac-Humboldt-Prize (1995), Gottfried Wilhelm Leibniz Prize (1992) | University of Regensburg | Karlsruhe: January 9

Moldovan politician | Order of the Republic (2010) | Ustia: January 9, 1951 - Iași: November 5, 1984 | Ștefan Urâtu (Stefan Uratu) | Ustia: January 9, 1951

Russian diplomat | Moscow State Law University, Moscow State Linguistic University | Moscow: January 9, 1950 - Tarascon-sur-Ariège: March 18, 1920 | Vladimir

Japanese physicist | Order of the Rising Sun, Gold and Silver Star | Tohoku University | Fukushima: January 9, 1945 - Geneva: June 30, 1893 | Shun'ichi Tanaka

Norwegian professor | Fridtjof Nansen Award of Excellence, Mathematics-Natural sciences class (2011) | University of Michigan, University of Bergen

Czech geobiocenologist | Gymnázium Tišnov | Tišnov: January 9, 1944 - Tišnov: March 21, 2020 | Jan Lacina | Tišnov: January 9, 1944 - Tišnov: March 21, 2020

Chilean politician | Pontifical Catholic University of Chile | Talca: January 9, 1943 - Fyne Court: July 6, 1855 | Fernando Flores - Carlos Fernando Flores

Philosophy professor | University of Perugia | Foligno: January 9, 1940 - November 26, 1943 | Dario Antiseri | Foligno: January 9, 1940 - November 26, 1943

Italian-born Australian medical doctor, research academic, and public health advocate | Officer of the Order of Australia (2020), Fellow of the Australian

American chemist | MRS Medal Award (2000), Ronald Breslow Award for Achievement in Biomimetic Chemistry (2013), Von Hippel Award (2022), Ralph F. Hirschmann

American inventor and engineer (1938–2019) | National Inventors Hall of Fame (2012), David Richardson Medal (1991) | laser printer | Michigan State

American chemist | Olin Palladium Award (1997), ACS Award in Analytical Chemistry (1991), Guggenheim Fellowship, Oesper Award (2002), North Carolina Award for

American engineer | Edwin Howard Armstrong Achievement Award (1975), Marconi Prize (1987), IEEE Richard M. Emberson Award (2002), Edison Medal (1995) | Purdue University

American mathematician and computer scientist (1930-2009) | Wilbur Cross Medal (1977), Leroy P. Steele Prize (1981) | Dunford–Schwartz theorem, Schwartz–Zippel lemma

American ichthyologist (1929-1986) | Leidy Award (1967) | New York University | New York City: January 9, 1929 - Closter: September 14, 1986 | Donn E. Rosen

American materials scientist (1928–2016) | Department of Commerce Gold Medal, Von Hippel Award (1985), Dickson Prize in Science (1981), National Medal of

Polish scientist, (geophysics) | Silver Cross of Merit, Armia Krajowa Cross, Knight of the Order of Polonia Restituta, Gold Cross of Merit | AGH University of

Russian mathematician (1923–2012) | Hero of Socialist Labour (1983), Jubilee Medal "Forty Years of Victory in the Great Patriotic War 1941–1945", Order of

American economist | Fellow of the American Statistical Association (1974) | American University, Hunter College High School, Hunter College | New York City

Chinese physicist | Academician of the Chinese Academy of Sciences (1957) | University of Science and Technology of China, University of Cambridge, Yenching University

British physicist (1910–1980) | Officer of the Order of the British Empire, Guggenheim Fellowship, Fellow of the American Physical Society | Victoria

French philosopher, social theorist and activist (1908–1986) | Jerusalem Prize (1975), honorary doctorate of Concordia University, Prix Goncourt (1954)

French scientist (1907-2001) | honorary doctorate from University of Lyon-II (1987), Grand Cross of the Legion of Honour | 2nd arrondissement of Lyon: January

German chemist (1904-1977) | Commander's Cross of the Order of Merit of the Federal Republic of Germany (1970) | University of Tübingen, Technical University

Greek writer and philosopher (1896-1970) | Athens Conservatoire | Athens: January 9, 1896 - Athens: January 28, 1970 | Elli Lambridi | Athens: January 9, 1896

Swedish meteorologist and explorer (1895–1928) | Commander of the Order of St. Olav | Uppsala University | Domkyrkoförsamlingen in Göteborg: January 9

Hungarian chemical engineer (1892-1970) | Budapest University of Technology and Economics | Budapest: January 9, 1892 - Budapest District IV: November 14, 1970

British researcher (1891–1964) | Polar Medal | St John's College, University of Cambridge | London: January 9, 1891 - Cape Town: July 7, 1964 | Reginald W.

Czech writer (1890–1938) | honorary citizen of Prague 10 (2021), Order of Tomáš Garrigue Masaryk, 1st class (1995), honorary citizen of Hradec Králové (2019)

British mathematician (1889–1946) | Daniell integral | Trinity College, King Edward's School, University of Göttingen | Valparaíso: January 9, 1889

German psychiatrist (1886–1941) | Heidelberg University | Berlin: January 9, 1886 - Moscow: October 16, 1941 | Arthur Kronfeld | Berlin: January 9, 1886

Italian writer (1881-1956) | Marzotto Prize | A Man — Finished | Florence: January 9, 1881 - Florence: July 8, 1956 | Giovanni Papini (Cartouche | Gianfalco

French literary historian, translator and writer (1880-1946) | Ludwig-Maximilian-University in Munich | Berlin: January 9, 1880 - Luxembourg: September 17, 1946

German sociologist (1876–1936) | iron law of oligarchy | Leipzig University, Ludwig-Maximilian-University in Munich, Martin Luther University Halle-Wittenberg

Faculty of Physics and Mathematics of Moscow Imperial University | January 9, 1874 - Moscow: December 5, 2024 | Valerian Velichko | January 9, 1874

mathematician (1873–1945) | Knight of the Order of the Dannebrog (1939) | Blichfeldt's theorem | Leipzig University, Stanford University | Grønbæk Parish

Lithuanian chemist | Honored Scientist of the RSFSR | University of Warsaw | Kalvarija: January 9, 1869 - Saint Petersburg: March 21, 1939 | Efim Semyonovich

German chemist (1869-1910) | Humboldt University of Berlin, University of Kiel, University of Tübingen | Gdańsk: January 9, 1869 - Koszalin: April 3, 1910

scientist | Honored Scientist of the RSFSR | Medical faculty of Moscow University | Rostov-on-Don: January 9, 1868 - Moscow: January 8, 1935 | Aleksandr Ivanov

Danish chemist | honorary doctor of the University of Bordeaux (1938), doctor honoris causa from the University of Paris (1938) | University of Copenhagen

Russian mathematician (1863–1926) | Order of Saint Anna, 3rd class (1906), Order of St. Vladimir, 4th class (1917), Order of Saint Stanislaus, 2nd class (1903)

Polish politician | University of Warsaw | Łomża: January 9, 1863 - Warsaw: September 17, 1929 | Jan Harusewicz | Łomża: January 9, 1863 - Warsaw: September 17, 1929

Czech chemist and university educator (1861–1930) | Brandýsek: January 9, 1861 - Ostrava: October 19, 1930 | František Wald (Frantisek Wald) | Brandýsek

Finnish physicist and meteorologist | Professor | Kuopio: January 9, 1861 - Helsinki: August 25, 1938 | Gustaf Melander | Kuopio: January 9, 1861 - Helsinki

Medical faculty of Moscow University, Moscow State University | January 9, 1860 - Yekaterinburg: January 1, 1981 | Varnava Ignatyev | January 9, 1860

American artist (1859-1935) | Philadelphia: January 9, 1859 - Stockbridge: December 18, 1935 | Walter Leighton Clark (Clark, Walter Leighton) | Philadelphia

German chemist (1857-1940) | Silver Leibniz medal (1919) | Heidelberg University, ETH Zurich | Vienna: January 9, 1857 - Halle (Saale): September 24, 1940

American shemist (1854-1908) | Heidelberg University | January 9, 1854 - September 13, 1908 | John Augustus Just | January 9, 1854 - September 13, 1908

German physicist (1852–1913) | University of Göttingen | Königsberg: January 9, 1852 - Berlin: May 13, 1913 | Richard Börnstein (Richard Bornstein)

American chemist and businessman (1852–1930) | commander of the Order of the Crown of Italy (1912), Honorary doctor of the Tufts University (1921), Doctor of

chemist and inventor of Vaseline (1837–1933) | vaseline | London: January 9, 1837 - Spring Lake: September 8, 1933 | Robert Augustus Chesebrough | London

Italian mathematician (1833–1913) | Chiusi: January 9, 1833 - Florence: January 23, 1913 | Angiolo Nardi Dei | Chiusi: January 9, 1833 - Florence: January 23, 1913

French official | Knight of the Legion of Honour (1881) | École Normale Supérieure | Bordeaux: January 9, 1824 - Arcachon: July 3, 1904 | Léonce Ribert

Norwegian mathematician | University of Oslo | January 9, 1809 - March 29, 1838 | Otto Gilbert David Aubert | January 9, 1809 - March 29, 1838

Scottish philosopher and poet, born 1778 | Fellow of the Royal Society of Edinburgh | University of Edinburgh | Wigtownshire: January 9, 1778 - London: April 2, 1820

Italian mathematician | University of Padua | Brescia: January 9, 1711 - March 2, 1767 | Giambattista Suardi | Brescia: January 9, 1711 - March 2, 1767

1662-1714) | Ljubljana: January 9, 1662 - Ljubljana: April 19, 1714 | Janez Anton Dolničar (Janez Anton Dolnicar) | Ljubljana: January 9, 1662 - Ljubljana

Breton maritime explorer of North America (1491–1557) | Saint-Malo: January 9, 1492 - Saint-Malo: September 11, 1557 | Jacques Cartier | Saint-Malo: January