Hilmar Johannes Backer

Basque applied mathematician | University of the Basque Country | Abadiño: January 13, 1991 - Berlin: September 2, 2011 | Judit Muñoz (Judit Munoz)

American mathematician | Morgan Prize (2009) | Princeton University | Binghamton: January 13, 1986 - London: February 22, 1888 | Aaron Pixton | Binghamton

chemist | Blue Obelisk Award (2014) | University of Cambridge | Manchester: January 13, 1973 - Israel: September 26, 1968 | Matthew H. Todd | Manchester

Dutch philosopher | Zilveren Griffel (2015) | University of Groningen | Hillerød: January 13, 1972 - Bucharest: April 25, 1895 | Stine Jensen - Stine Eliskov

Czech writer | Czech Technical University in Prague | Hranice: January 13, 1972 - Prague: September 6, 1963 | Miroslav Žamboch (Miroslav Zamboch) | Hranice

French writer and philosopher | Knight of the French Order of Academic Palms (2018), Knight of the National Order of Merit (2015) | Paris-Sorbonne University

Spanish journalist and scientist | Mallorca: January 13, 1970 - Chihuahua City: April 8, 1986 | José Luis Tajada (Jose Luis Tajada) | Mallorca: January 13

professor of mathematics | Ruth I. Michler Memorial Prize (2009), Fellow of the American Mathematical Society (2023), Fellow of the Institute of Mathematical

American physicist | Wesleyan University, North Carolina State University | January 13, 1963 - Washington, D.C.: April 5, 1863 | David Carroll | January 13

Academic and entrepreneur | University of Hull, University of Cambridge | Bingley: January 13, 1961 - Detroit: December 4, 1955 | Peter James Thomas | Bingley

American physicist | Nobel Prize in Chemistry (2014), Newcomb Cleveland Prize, William O. Baker Award for Initiatives in Research (1993) | Cornell University

German mathematician | Technical University of Munich | January 13, 1960 - December 1, 1798 | Michael Griebel | January 13, 1960 - December 1, 1798 | Technical

Russian mathematician | MSU Faculty of Physics | Moscow: January 13, 1959 - December 1, 1987 | Alexey Semihatov | Moscow: January 13, 1959 - December 1, 1987

Russian historian (born 1957) | Vologda State Pedagogical University | Goluzino: January 13, 1957 - January 1, 1909 | Vasily Sablin | Goluzino: January 13

Australian mathematician | Australian Mathematical Society Medal (1996), Fellow of the Australian Mathematical Society, George Szekeres Medal (2022), Humboldt

Russian mathematician | Herzen University | January 13, 1952 - Los Angeles: July 1, 1983 | Georgy Sviridyuk | January 13, 1952 - Los Angeles: July 1, 1983

Iranian politician (born 1952) | Massachusetts Institute of Technology, Sharif University of Technology | Tehran: January 13, 1952 - Geneva: March 20, 1767

Polish chemist | Jedrzej Śniadecki Medal (2016) | Wrocław University of Science and Technology | Gdańsk: January 13, 1949 - Karachi: March 4, 1978 | Paweł

German chemist | Arnold Eucken Prize (1982), Emil Kirschbaum Medal (2012), Gmelin-Beilstein Commemorative Medal (2010) | Technical University of Dortmund

Russian scientist | Honoured Higher education employee of the Russian Federation, Russian President's Prize in the field of education, Honoured Worker of

American physicist (1944-2012) | Fellow of the American Physical Society, Tom W. Bonner Prize in Nuclear Physics (2007) | Los Angeles: January 13, 1944 - Santa

British philosopher (1936–2009) | Fellow of the American Academy of Arts and Sciences, Fellow of the British Academy, Johan Skytte Prize in Political Science (2001)

Irish mathematician | University of Cambridge | Sankeshwar: January 13, 1933 - Dublin: June 24, 2018 | David Simms | Sankeshwar: January 13, 1933 - Dublin: June 24, 2018

American mathematician (1931-2018) | Fellow of the American Mathematical Society (2013), Steele Prize for Lifetime Achievement (2002), Guggenheim Fellowship

American astronomer (1930-2002) | James Clerk Maxwell Prize for Plasma Physics (1983), Ernest Orlando Lawrence Award (1974) | Harvard University | Vienna

Indian Natural Product Chemist | Shanti Swarup Bhatnagar Prize for Science and Technology (1971) | University of Manchester | India: January 13, 1927 - May 26, 2003

Austrian-born philosopher of science | Science in a Free Society, Against Method, Farewell to Reason, Killing Time | University of Vienna | Vienna: January 13

Australian physicist | January 13, 1922 - June 18, 2014 | Robert Jacklyn | January 13, 1922 - June 18, 2014

Hungarian mathematician (1920-2004) | Szent-Györgyi Albert Prize (1993), Eötvös József Wreath (1999), Order of Labour (1989), Order of Labour (1980)

American biologist (1920-2012) | Charles F. Kettering Prize (1980), Clarivate Citation Laureates (2006), Canada Gairdner International Award (1979)

Soviet physicist (1920-2000) | Merited Scientist of the Russian Federation | Voronezh State University | Usman: January 13, 1920 - Voronezh: September 15, 2000

Ukrainian therapist (1919–2003) | Hero of Socialist Labour, Order of Lenin, Order of Prince Yaroslav the Wise, 5th class, Order of the Patriotic War 2nd

January 13, 1914 - Tehran: May 11, 2012 | Cəbrayıl Hüseynov (Cəbrayil Huseynov) | January 13, 1914 - Tehran: May 11, 2012

comic artist (1914–1980) | Grand prix de la ville d'Angoulême (1977), Haxtur Award (2013), Stripschapprijs (1975), Prix Saint-Michel (1975) | Jean Valhardi

French writer (1913–1979) | Grand Prix littéraire de la Ville de Paris (1978), Prix Sainte-Beuve (1949), Prix Paul Hervieu (1952), Prince Pierre Award (1962)

January 13, 1910 - Amsterdam: January 8, 1736 | Tihamér László (Tihamer Laszlo) | January 13, 1910 - Amsterdam: January 8, 1736

United States Army general (1908–1975) | Defense Distinguished Service Medal, Distinguished Service Medal, Legion of Honour, Legionnaire of Legion of Merit

American inventor (1907–1997) | Pomona College | Oklahoma: January 13, 1907 - Pasadena: December 12, 1997 | R. Stanton Avery | Oklahoma: January 13, 1907

Finnish politician and sprinter (1905-1972) | Pori: January 13, 1905 - Helsinki: June 20, 1972 | Aarno Niini | Pori: January 13, 1905 - Helsinki: June 20, 1972

Polish philosopher (1905–1963) | Cross of Valour | Poznań University of Economics | Kovel: January 13, 1905 - Warsaw: August 14, 1963 | Jan Stachniuk

French philosopher | École Normale Supérieure | Plainfaing: January 13, 1902 - Nancy: June 22, 1987 | Raymond Ruyer | Plainfaing: January 13, 1902 - Nancy

Austrian mathematician (1902-1985) | Richard Lieben prize (1928) | Menger sponge, Menger's theorem, distance geometry, Menger curvature, Menger space

Soviet writer (1901-1977) | Moscow: January 13, 1901 - Pokrov: March 7, 1977 | Sergey Fudel | Moscow: January 13, 1901 - Pokrov: March 7, 1977

German physicist (1901–1993) | Commander's Cross of the Order of Merit of the Federal Republic of Germany, honorary doctorate from the University of

Soviet filmmaker and film theorist (1899–1970) | Order of the Red Banner of Labour, People's Artist of the RSFSR, Order of Lenin | Moscow School of Painting

German chemist (1899-1957) | Bunsen Medal (1955), Olin Palladium Award (1957) | Humboldt University of Berlin, University of Tübingen | Wrocław: January 13

Scottish philosopher | Glasgow: January 13, 1897 - Callander: March 17, 1974 | Charles Arthur Campbell | Glasgow: January 13, 1897 - Callander: March 17, 1974

American inventor | Oklahoma City: January 13, 1894 - Oklahoma City: February 12, 1971 | Irwin Fife | Oklahoma City: January 13, 1894 - Oklahoma City: February 12, 1971

disciple of Sri Aurobindo (1889–1983) | Presidency University, University of Calcutta | Faridpur: January 13, 1889 - Pondicherry: February 7, 1983 | Nolini

American philosopher and activist | Columbia University, Wellesley College, Northwestern University | January 13, 1888 - March 12, 1961 | Gertrude C. Bussey

American electrical engineer (1886–1975) | Edison Medal (1961), IEEE Fellow, Lasker-DeBakey Clinical Medical Research Award (1973), AMA Scientific

Swiss-born American electrical engineer (1883-1950) | Geneva: January 13, 1883 - San Francisco: July 23, 1950 | Frederick A. Kolster | Geneva: January 13, 1883

French-Swiss aviation pioneer and inventor (1883-1941) | Knight of the Legion of Honour (1931) | 9th arrondissement of Paris: January 13, 1883 - Geneva: July 17, 1941

Hungarian football and ice hockey player (1880-1955) | Budapest: January 13, 1880 - Budapest: November 28, 1955 | Béla Ordódy (Bela Ordody) | Budapest

Scientist and writer from Pennsylvania, USA | Pittsburgh: January 13, 1879 - Wilkinsburg: February 6, 1949 | Leasure Kline Darbaker | Pittsburgh: January 13

American mathematician (1876-1965) | Gettysburg College, Johns Hopkins University | York: January 13, 1876 - Princeton: October 28, 1965 | Luther P. Eisenhart

Swedish politician (1876-1928) | Royal Institute of Technology | Stockholm: January 13, 1876 - Oscar Parish: January 28, 1928 | Jacob Beskow | Stockholm

German mathematician (1876–1959) | National Prize of East Germany | Gram-Schmidt process | Imperial University of Dorpat, University of Göttingen, Frederick

Swiss chemist (1874-1953) | honorary doctorate of the University of Basel, honorary doctor of ETH Zürich, honorary doctor of the University of Zurich

Swedish inventor | January 13, 1872 - Engelbrekt church parish: October 20, 1941 | Gotthilf Betulander | January 13, 1872 - Engelbrekt church parish: October 20, 1941

American civil engineer (1870-1938) | Paul Mijksenaar Award (2011) | St. Louis: January 13, 1870 - Detroit: June 4, 1938 | Edward N. Hines | St. Louis: January

philosopher, mystic, and writer (c. 1866–1877 – 1949) | Fourth Way, Meetings with Remarkable Men | Tbilisi Theological Seminary | Gyumri: January 13, 1866

German physicist (1864-1928) | Bavarian Maximilian Order for Science and Art (1925), Nobel Prize in Physics (1911), Guthrie Lecture (1925) | black body

German chemist (1863-1925) | Adolf-von-Baeyer Gold Medal (1924) | Leipzig: January 13, 1863 - Salzburg: June 12, 1925 | Richard Kothe | Leipzig: January 13

Russian theologian and philosopher | Kazan Theological Academy | Vertunovka: January 13, 1863 - Kazan: June 30, 1937 | Viktor Nesmelov | Vertunovka: January

January 13, 1861 - Rome: January 1, 0140 | Leonid Chizhevsky | January 13, 1861 - Rome: January 1, 0140

Australian chemist | Honorary Fellow of the Royal Society Te Apārangi, Knight Commander of the Order of the British Empire, Fellow of the Royal Society

German physicist (1855–1922) | University of Strasbourg | Constance: January 13, 1855 - Karlsruhe: June 17, 1922 | Otto Lehmann | Constance: January 13, 1855

Honored Scientist of the RSFSR | Medical faculty of Moscow University, Imperial Moscow University | January 13, 1850 - January 1, 1908 | Vasily Shervinskiy

Ukrainian geologist and Russian monarchist (1850–1919) | Order of St. Vladimir, 3rd class | Faculty of Physics and Mathematics of Kyiv University

French astronomer (1845-1896) | Knight of the Legion of Honour (1875), Officer of the Legion of Honour (1893), Lalande Prize (1874) | École Normale Supérieure

Slovene teacher | Leutschach: January 13, 1845 - Krško: April 28, 1920 | Anton Šantel (Anton Santel) | Leutschach: January 13, 1845 - Krško: April 28, 1920

Spanish philosopher, jurist and politician (1840-1917) | Universidad Central | León: January 13, 1840 - Madrid: April 15, 1917 | Gumersindo de Azcárate

Spanish politician, mathematician, engineer and teacher | Grand Cross of the Order of Isabella the Catholic (1884) | Havana: January 13, 1840 - Portugalete

Spanish philosopher and politician (1839-1886) | Elda: January 13, 1839 - Zamora: March 7, 1886 | Antonio del Val Ripoll | Elda: January 13, 1839 - Zamora: March 7, 1886

Russian mathematician (1837-1888) | University of Paris, Konstantinovsky Surveying Institute, Faculty of Physics and Mathematics of Moscow Imperial University

Russian chemist (1827–1911) | Order of Saint Stanislaus, 1st class, Order of St. Vladimir, 3rd class, Order of the White Eagle, Order of Saint Anna, 2nd

German chemist (1826–1912) | January 13, 1826 - Berlin: October 16, 1912 | Karl Heinrich Ritthausen | January 13, 1826 - Berlin: October 16, 1912

Dr. phil. Westfälische Wilhelms-Universität Münster 1846 | Waltrop: January 13, 1820 - January 1, 1899 | Hermann Heilermann | Waltrop: January 13, 1820

American feminist activist (1810–1892) | National Women's Hall of Fame (1996) | Piotrków Trybunalski: January 13, 1810 - Brighton: August 4, 1892

Russian mathematician | Commander of the Legion of Honour, Order of the White Eagle, Order of St. Vladimir, 2nd class, Knight of the Order of St. Alexander Nevsky

French chemist (1780-1840) | Knight of the Legion of Honour (1830) | Rennes: January 13, 1780 - Paris: April 29, 1840 | Pierre Jean Robiquet | Rennes: January