Léo Errera (Leo Errera)

American mathematician | Sloan Fellowship (2015), Joan & Joseph Birman Research Prize in Topology and Geometry (2017), New Horizons in Mathematics Prize (2020)

French philosopher | Marc Bloch University, University of Paris 1 Pantheon-Sorbonne | September 4, 1976 - Washington, D.C.: June 6, 1934 | Aïcha Liviana

September 4, 1976 - Pregny-Chambésy: May 25, 1909 | Christian Cary | September 4, 1976 - Pregny-Chambésy: May 25, 1909

Russian mineralogist and crystallographer; geology faculty, St. Petersburg State University | Medal of the Order "For Merit to the Fatherland", 2nd class

American academic | University of Virginia | United States: September 4, 1971 - Greenwich: January 31, 1932 | Douglas Duckworth | United States: September 4

University of Abomey-Calavi, University of Yaoundé | September 4, 1970 - London: November 22, 1902 | Zachée Betche (Zachee Betche) | September 4, 1970

Georgian politician | Central European University, Tbilisi State University, Georgian National Academy of Sciences | Tbilisi: September 4, 1969 - Lugano

Japanese doctor and medical scientist (born 1962) | Robert Koch Prize (2008), Albany Medical Center Prize (2011), Nobel Prize in Physiology or Medicine (2012)

Russian scientist | Moscow State University | Moscow: September 4, 1959 - Haarlem: February 4, 1928 | Olga Dubova | Moscow: September 4, 1959 - Haarlem: February 4, 1928

Iranian philosopher | University of Paris | Mashhad: September 4, 1959 - Tehran: October 12, 2023 | Ehsan Shariati | Mashhad: September 4, 1959 - Tehran

biologist in Japan | Medal with Purple Ribbon | Tokyo Medical and Dental University | Tokushima: September 4, 1958 - Bolshevo: February 3, 1994 | Hidenori

Indian physicist | Rabindra Puraskar | Presidency University, University College of Science, Technology & Agriculture, University of Calcutta, Carnegie Mellon University

Soviet writer and poet (1955-2008) | Rostov-on-Don: September 4, 1955 - Tanais: December 2, 2008 | Gennady Zhukov - Геннадий Викторович

Israeli physicist | Weizmann Institute of Science, Tel Aviv University, D. K. Fadeev Academic Gymnasium, Hebrew University of Jerusalem | Saint Petersburg

Saarland University | September 4, 1955 - January 1, 1921 | Bernd M. Scherer | September 4, 1955 - January 1, 1921 | Saarland University

French writer and philosopher | Oran: September 4, 1954 - Florence: February 6, 1673 | Oscar Brenifier | Oran: September 4, 1954 - Florence: February 6, 1673

Russian scientist | Medal "In Commemoration of the 850th Anniversary of Moscow", Honoured Higher education employee of the Russian Federation, Honoured Worker

Russian parapsychologist, writer, psychologist, philosopher, psychic, painter | Petropol, Prize for the Good of the World | Faculty of Psychology, Saint

Azerbaijani geologist (born 1952) | Honored Scientist of Azerbaijan, Taraggi Medal | Baku State University | Marneuli: September 4, 1952 - Baku: April 10, 2020

Belgian mathematician | Katholieke Universiteit Leuven | Mechelen: September 4, 1951 - Šternberk: July 8, 1994 | Jan Denef | Mechelen: September 4, 1951

Iranian scientist | University of California, Berkeley, University of Tehran | Isfahan: September 4, 1949 - Tehran: July 8, 2010 | Caro Lucas | Isfahan

Russian scientist | Medal "In Commemoration of the 300th Anniversary of Saint Petersburg", Order of Friendship, Pushkin Medal, Tsarskoselskaya Art Award

Russian philosopher | Moscow Power Engineering Institute | Moscow: September 4, 1942 - Saint Petersburg: November 5, 1843 | Viktor Bychkov | Moscow: September

Brazilian philosopher | Ordem do Mérito Cultural (2025), National Order of Scientific Merit, honorary doctor of Paris 8 University (2003) | University of São Paulo

Pakistani physicist | Rhodes Scholarship (1962), Fellow of Pakistan Academy of Sciences | University of the Punjab, Brasenose College | Lahore: September 4

French physicist (1939–2023) | Holweck Prize (1983), Paul Langevin Award (1976) | École Normale Supérieure, Science Faculty of Paris | Vattetot-sur-Mer

German mathematician | University of Göttingen | Hanover: September 4, 1939 - November 24, 2023 | Ingo Lieb | Hanover: September 4, 1939 - November 24, 2023

Israeli-American computer scientist (born 1936) | Foreign Member of the Royal Society (2025), Kampé de Fériet Award (2024), ACM-AAAI Allen Newell Award

American philosopher (1935–2013) | Alberghiero, Baylor University, University of Wisconsin–Madison, William Jewell College | Buffalo: September 4, 1935

Swiss musician and physicist | Lausanne: September 4, 1934 - Massachusetts: January 1, 2001 | Guy Claude Burger | Lausanne: September 4, 1934 - Massachusetts

American chemist | Dexter Award (1978), George C. Pimentel Award in Chemical Education (1993), Guggenheim Fellowship | University of Pennsylvania, University of Florida

NASA administrator (1929-2018) | Presidential Citizens Medal, NASA Distinguished Service Medal (1981) | University of Florida | St. Petersburg: September 4

Polish chemist | Zasłużony Działacz Kultury, Knight of the Order of Polonia Restituta, Gold Cross of Merit, Officer of the Order of Polonia Restituta

American computer scientist and cognitive scientist (1927-2011) | Computer History Museum fellow, Programming Languages Achievement Award (2002), Kyoto Prize

German geophysicist | William Bowie Medal (2005), Albert Einstein Medal (2001), Allan D. Emil Memorial Award (1989), Leonard Medal (1983) | Słupsk: September

Indian academic | Padma Vibhushan (2007), Padma Shri in Medicine | Tamil Nadu: September 4, 1926 - June 20, 2012 | Balu Sankaran | Tamil Nadu: September 4

Austrian philosopher and theologian (1926–2002) | honorary doctorate from University of Paris-XI (1976), Kultur- und Friedenspreis der Villa Ichon (1998)

Belgian philosopher/professor:Vrije Universiteit Brussel/Ghent University (1925–1995) | Arkprijs van het Vrije Woord (1988), Prijs Vrijzinnig Humanisme (1995)

Dutch politician (1925–1998) | University of Amsterdam | September 4, 1925 - December 9, 1998 | Ger Klein | September 4, 1925 - December 9, 1998 | University

Swiss philosopher (1923-2007) | Basel: September 4, 1923 - November 4, 2007 | Gerhard Hubek | Basel: September 4, 1923 - November 4, 2007

Royal Institute of Technology | September 4, 1914 - Schneisingen: August 29, 2019 | Erik Wilkenson | September 4, 1914 - Schneisingen: August 29, 2019

illegitimate son of Joseph Stalin | Merited Cultural Worker of the RSFSR, Order of the Patriotic War 1st class, Medal "For the Defence of Moscow", Order of the

biophysicist (1906–1981) | Gregor Mendel Medal (1967), Fellow of the American Academy of Arts and Sciences, Kimber Genetics Award (1964), Nobel Prize in

Estonian inventor (1905–2003) | Riga: September 4, 1905 - Binningen: July 17, 2003 | Walter Zapp | Riga: September 4, 1905 - Binningen: July 17, 2003

Polish philosopher | Faculty of Humanities at the Jan Kazimierz University in Lviv | Lviv: September 4, 1904 - Kharkiv: January 1, 1940 | Michał Seredyński

Spiritual Scientist who established Hari Om ashram in Nadiad and Surat, Gujarat, India. Ashram is popularly Known as "Maun Mandirs". Anyone From Any religion

German philosopher and sociologist (1892–1985) | Wie muß der deutsche Nation-Begriff heute aussehen? | University of Göttingen, University of

Dutch mathematician (1890–1975) | honorary doctor of the University of Bordeaux (1949) | Van der Corput sequence, Van der Corput lemma, Van der Corput's

Russian mathematician (1889–1950) | Stalin Prize (1951), Order of the Badge of Honour (1940), Honored Scientist of the RSFSR (1950) | Moscow State

September 4, 1885 - Helsinki: April 14, 1977 | V. Arti | September 4, 1885 - Helsinki: April 14, 1977

German physicist (1885-1967) | Heinersreuth: September 4, 1885 - Hanover: August 3, 1967 | Gustav Flügel (Gustav Flugel) | Heinersreuth: September 4, 1885

American metallurgist | John Scott Award (1911) | New York City: September 4, 1876 - January 17, 1936 | Albert Ferdinand Shore | New York City: September 4

September 4, 1875 - October 27, 2021 | W. D. Collins | September 4, 1875 - October 27, 2021

American inventor (1866–1945) | Pleasantville: September 4, 1866 - Milford: June 23, 1945 | Simon Lake | Pleasantville: September 4, 1866 - Milford: June 23, 1945

American businessman | scoop | Wayland Seminary | Kenbridge: September 4, 1866 - Pittsburgh: May 3, 1920 | Alfred L. Cralle | Kenbridge: September 4, 1866

Russian chemist (1863-1940) | Imperial St. Petersburg University, Men's Gymnasium (Novocherkassk) | Novocherkassk: September 4, 1863 - Saint Petersburg: October 9, 1940

French physicist and mathematician (1857-1933) | Knight of the Legion of Honour (1923), Poncelet Prize (1917) | École polytechnique | Paris: September 4, 1857

Australian inventor | Federation University Australia | Ballarat: September 4, 1855 - Malvern: July 28, 1912 | Henry Sutton | Ballarat: September 4, 1855

Uppsala University | September 4, 1854 - Uppsala Cathedral Assembly: September 7, 1940 | Karl Mörner (Karl Morner) | September 4, 1854 - Uppsala Cathedral

American mathematician (1851–1916) | The essentials of plane and spherical trigonometry, Key to Wells' Essentials of trigonometry | Massachusetts Institute

German mathematician and astronomer (1848-1919) | Humboldt University of Berlin, Friedrich-Wilhelms-Gymnasium | Berlin: September 4, 1848 - Leipzig: September 23, 1919

American inventor (1848–1928) | National Inventors Hall of Fame (2006) | electrical filament, Edison Pioneers, passenger train toilet | Chelsea: September 4

Norwegian Sea Captain and Inventor | Nøtterøy: September 4, 1841 - June 21, 1897 | Even Tollefsen | Nøtterøy: September 4, 1841 - June 21, 1897

Czech surveyor and university educator (1835-1900) | Czech Technical University in Prague | Libochovice: September 4, 1835 - New Town: October 21, 1900

University of Königsberg | September 4, 1835 - Brandenburg an der Havel: January 8, 2012 | Robert Dorr | September 4, 1835 - Brandenburg an der Havel

businessperson | Stockholm: September 4, 1829 - Stockholm: November 27, 1914 | Hanna Hammarström (Hanna Hammarstrom) | Stockholm: September 4, 1829

Swedish computer pioneer | Viby: September 4, 1826 - Stockholm: December 29, 1905 | Martin Wiberg | Viby: September 4, 1826 - Stockholm: December 29, 1905

Austrian philosopher | Order of the Iron Crown | University of Innsbruck | Fügen: September 4, 1825 - Innsbruck: April 3, 1898 | Tobias Wildauer von

University of Bonn, Humboldt University of Berlin | September 4, 1818 - Orange: August 26, 1998 | Dimitar Mutew | September 4, 1818 - Orange: August 26

Polish Romantic poet (1809–1849) | Balladyna, Kordian | Vilnius University | Kremenets: September 4, 1809 - Paris: April 3, 1849 | Juliusz Słowacki (Juliusz

Italian politician, scientist, and general (1809–1896) | Knight of the Legion of Honour (1851), Grand Cordon of the order of Nichan Iftikhar (1867), Grand

Bohemian botanist (1791–1849) | Charles University | Prague: September 4, 1791 - Prague: April 6, 1849 | Jan Svatopluk Presl | Prague: September 4, 1791

Japanese philosopher | Ashigarakami district: September 4, 1787 - Imaichi: November 17, 1856 | Ninomiya Sontoku - 二宮 尊徳. 金次郎 | Ashigarakami

French engineer | Amiens: September 4, 1754 - Jouy-en-Josas: June 1, 1836 | Charles Dallery | Amiens: September 4, 1754 - Jouy-en-Josas: June 1, 1836