Ludwig Ramberg

British mathematician and TV presenter | David Attenborough Award (2024), Christopher Zeeman Medal (2018) | University College London, Presdales School

Belgian choreographer | Brussels metropolitan area: February 21, 1978 - 2nd arrondissement of Lyon: June 8, 1880 | Antoine Boute | Brussels metropolitan area

American professor of mathematics | University of California, Berkeley, Northern Arizona University | Santa Barbara: February 21, 1974 - Bratislava: December 1, 1959

Azerbaijani scientist | Honored Scientist of Azerbaijan (2020) | Lyceum of Physics, Mathematics and Computer Science, Igor Sikorsky Kyiv Polytechnic Institute

cryptographer | Knight of the National Order of Merit (2013) | Télécom Paris | Beersheba: February 21, 1967 - Ann Arbor: March 4, 2016 | David Naccache

Ukrainian university teacher | Moscow University's Department of Philosophy | Kryvyi Rih: February 21, 1963 - Łódź: December 2, 1912 | Jaroslaw Schramko

Russian mathematician | Kungur: February 21, 1961 - Moscow: June 27, 2018 | Valery Ashihmin | Kungur: February 21, 1961 - Moscow: June 27, 2018

Russian scientist | Order of Holy Prince Daniel of Moscow 3rd class, Order of St. Sergius of Radonezh 3rd class | Philological Faculty of Moscow State

Czech philosopher | Luhačovice: February 21, 1960 - Vinohrady: December 12, 1911 | Václav Umlauf (Vaclav Umlauf) | Luhačovice: February 21, 1960

scientist | Moscow Institute for History and Archives | Astrakhan: February 21, 1955 - January 1, 1960 | Sergey Karpenko | Astrakhan: February 21, 1955 - January 1, 1960

American scientist | IEEE Fellow | Lexington High School, Washington University in St. Louis, University of Michigan | February 21, 1955 - Kyiv: February 2, 1971

Polish philosopher | Olsztyn: February 21, 1955 - Glashütten: October 22, 1984 | Janusz Dobieszewski | Olsztyn: February 21, 1955 - Glashütten: October 22, 1984

American mathematician | Élie Cartan Prize (1993), The Shaw Prize in Mathematical Sciences (2009), Maryam Mirzakhani Prize in Mathematics (2008), Oswald

Czech philosopher, translator and university educator | participant in the resistance and resistance against communism | Charles University | Prague: February

Italian physicist | Naples: February 21, 1951 - January 1, 1361 | Chiara Nappi | Naples: February 21, 1951 - January 1, 1361

Graz University of Technology | February 21, 1950 - April 13, 1944 | Wolfhard Wegscheider | February 21, 1950 - April 13, 1944 | Graz University of Technology

Philosopher and cultural historian | Harvard University, University of Detroit Jesuit High School and Academy | Geneva: February 21, 1950 - Pontevedra: December 29, 1976

Estonian physicist, political scientist and politician | Order of the National Coat of Arms, 3rd Class (2006), Order of the National Coat of Arms, 5th Class (2002)

1948–) Hungarian mathematician | Paul Erdős Prize, Ostrowski Prize (1993), Széchenyi Prize (1998) | Eötvös Loránd University, Fazekas Mihály Gimnázium

Estonian physicist and philosopher | Order of the White Star, Medal Class | University of Tartu, Hugo Treffner Gymnasium | Tartu: February 21, 1947 - Estonia

Belgian philosopher | Jumet: February 21, 1947 - Poznań: November 22, 2014 | Marcel Paquet | Jumet: February 21, 1947 - Poznań: November 22, 2014

Belgian comics artist, playwright and mathematician | Limburg: February 21, 1945 - Couvin: August 17, 2021 | Maurice Vandeweyer | Limburg: February 21, 1945

Japanese mathematician | doctor honoris causa of the University of Turku | February 21, 1944 - Sydney: October 18, 2014 | Yōichi Motohashi (Yoichi Motohashi)

French physician and feminist | prix de la laïcité (2022), Commander of the National Order of Merit (2014), Officer of the Legion of Honour

Spanish philosopher | Menéndez Pelayo International Prize (2008), Civil Order of Alfonso X, the Wise, Grand Cross of the Civil Order of Alfonso X the Wise

Portuguese theologian | Penafiel: February 21, 1941 - Florence: August 18, 1960 | Afonso Rocha | Penafiel: February 21, 1941 - Florence: August 18, 1960

Israeli philosopher | February 21, 1940 - Genolier: February 11, 1994 | Tsion Avital | February 21, 1940 - Genolier: February 11, 1994

German philosopher (1937–2009) | Lauterbach: February 21, 1937 - Frankfurt: July 21, 2009 | Werner Becker | Lauterbach: February 21, 1937 - Frankfurt: July 21, 2009

Italian engineer and physicist | Charles Hard Townes Award (2006) | Maglie: February 21, 1936 - January 1, 2016 | Orazio Svelto | Maglie: February 21, 1936

Russian philosopher (1934–2021) | Order of Merit of the Federal Republic of Germany (2005), Plekhanov Prize (2000), Humboldt Prize (1994) | Moscow State University

Belgian philosopher (1929-2002) | February 21, 1929 - September 14, 2002 | Guido Maertens | February 21, 1929 - September 14, 2002

American virologist, epidemiologist and public health expert, known for his work on arthropod-borne viruses and emerging infectious diseases | Cornell University

parapsychologist (1928-2011) | Gdańsk: February 21, 1928 - August 18, 2011 | Helmut Schmidt | Gdańsk: February 21, 1928 - August 18, 2011

scholar, Indian physicist (1927-2007) | Padma Bhushan in science & engineering, Shanti Swarup Bhatnagar Prize for Science and Technology (1968), Fellow of the

Hungarian chemical engineer (1923-2013) | Battonya: February 21, 1923 - Zirc: November 6, 2013 | József Báthory (Jozsef Bathory) | Battonya: February 21

French historian and philosopher (1922–2010) | honorary doctor of the University of Neuchâtel (1985), CNRS silver medal (1979), CNRS silver medal (1978)

American political philosopher (1921–2002) | National Humanities Medal (1999), Spitz Prize, Rolf Schock Prize in Logic and Philosophy (1999), Fulbright

Soviet machine tool designer (1915-1970) | Stalin Prize, USSR State Prize | Saint Petersburg: February 21, 1915 - Saint Petersburg: April 11, 1970 | Alexey

French resistance fighter (1913-1943) | deported French resistance, mort pour la France, Croix de guerre 1939–1945, Resistance Medal (1952), Knight of the

American chemist | Fellow of the American Physical Society, Guggenheim Fellowship (1962), Glenn T. Seaborg Award for Nuclear Chemistry (1960) | California

Hungarian mathematician who worked in group theory, graph theory, and geometry (1912–1972) | Kossuth Prize (1951), Kossuth Prize (1961) | Budapest University

American chemist | Karlsruhe: February 21, 1911 - Pittsburgh: December 25, 1995 | Klaus H. Hofmann | Karlsruhe: February 21, 1911 - Pittsburgh: December 25, 1995

Czech yogi | Litvínov: February 21, 1908 - Prague: July 4, 1974 | Kvetoslav Minarik | Litvínov: February 21, 1908 - Prague: July 4, 1974

French novelist and poet (1903–1976) | Straelen Translator’s Prize provided by Kunststiftung NRW (2017), Prix des Deux Magots (1933) | University of Paris

Danish biochemist and physiologist (1895-1976) | Nobel Prize in Physiology or Medicine (1943) | Technical University of Denmark, University of Graz

Indian chemist (1894–1955) | Fellow of the Institute of Physics, Knight Bachelor, Officer of the Order of the British Empire, Fellow of the Royal Institute

German mathematician (1888–1937) | Ackermann–Teubner Memorial Award (1934) | University of Stuttgart, University of Strasbourg, Einhard-Gymnasium (Aachen)

Hungarian communist newspaper editor and politician (1885-1950) | Kossuth Prize (1949) | Eötvös Loránd University | Sárvár: February 21, 1885 - Budapest

mechanic, philosopher and political activist | Morshansk: February 21, 1883 - Davos: May 1, 1910 | Nikifor Efremovich Vilonov | Morshansk: February 21, 1883

American mathematician (1881–1966) | Columbia University | Cleveland: February 21, 1881 - Lake Wales: October 15, 1966 | Eugenie M. Morenus | Cleveland

French theologian (1877-1964) | Faculty of Arts of Paris | Auch: February 21, 1877 - Rome: February 15, 1964 | Reginald Garrigou-Lagrange | Auch: February 21

German university teacher (1877-1958) | University of Göttingen | February 21, 1877 - Dresden: December 3, 1958 | Paul Eugen Böhmer (Paul Eugen Bohmer)

English mathematician (1876-1965) | Trinity College Dublin (1907), University of Cambridge (1926), Girton College | Streatham Common: February 21, 1876

Statsrådet Mauritz Hallberg's prize (1923), Commander of the Order of the White Rose of Finland, Knight Officer of the Order of the Polar Star (1909)

Japanese chemist (1865-1930) | Order of the Sacred Treasure, 2nd Class | University of Tokyo | Edo: February 21, 1865 - Sendai: July 11, 1930 | Ogawa Masataka

February 21, 1864 - Uttar Pradesh: January 20, 2020 | Albin Belar | February 21, 1864 - Uttar Pradesh: January 20, 2020

Japanese ethicist | Kyoto Prefecture: February 21, 1858 - December 21, 1918 | Nakashima Rikizō (Nakashima Rikizo) | Kyoto Prefecture: February 21, 1858

Czech chemist (1857-1918) | Nové Strašecí: February 21, 1857 - Vinohrady: November 4, 1918 | Karel Lukáš (Karel Lukas) | Nové Strašecí: February 21

German chemist (1852–1923) | Bonn: February 21, 1852 - Heidelberg: June 3, 1923 | Friedrich Krafft | Bonn: February 21, 1852 - Heidelberg: June 3, 1923

mathematician (1845-1912) | Zagorje ob Savi: February 21, 1845 - Ljubljana: October 16, 1912 | Josip Celestina | Zagorje ob Savi: February 21, 1845

Austrian inventor, social reformer and author (1838–1921) | Kolín: February 21, 1838 - Vienna: December 21, 1921 | Lynkeus | Kolín: February 21, 1838

British surgeon (1836-1894) | University of St Andrews | Stretford: February 21, 1836 - Brisbane: June 16, 1894 | Joseph Bancroft | Stretford: February 21

1835-1905 | Imperial Academy of Medical Surgery | Saint Petersburg: February 21, 1835 - Novotorzhsky Uyezd: April 30, 1905 | Fëdor Nikolaevič Zavarykin

Austro-Hungarian scientist (1826-1878) | Bratislava: February 21, 1826 - Vienna: May 1, 1878 | Friedrich J. Haberlandt | Bratislava: February 21, 1826

French philosopher (1823–1903) | Béguey: February 21, 1823 - Paris: January 4, 1903 | Pierre Laffitte | Béguey: February 21, 1823 - Paris: January 4, 1903

American chemist (1822–1908) | Fellow of the American Academy of Arts and Sciences | Columbia University, Columbia University Vagelos College of Physicians

Scottish chemist, Regius Professor of Technology at the University of Edinburgh (1818-1859) | Fellow of the Royal Society of Edinburgh | University of

American businessman (1817–1894) | Rapallo: February 21, 1817 - Rapallo: January 17, 1894 | Domingo Ghirardelli | Rapallo: February 21, 1817 - Rapallo

English cleric and cardinal (1801–1890) | Great Ealing School, Trinity College | London: February 21, 1801 - Edgbaston: August 11, 1890 | John Henry Newman

French inventor (1795–1859) | Collas process | Paris: February 21, 1794 - Paris: March 3, 1859 | Achille Collas | Paris: February 21, 1794 - Paris: March 3, 1859

Baltic German pharmacist, botanist, and explorer (1794-1851) | University of Jena | Niederroßla: February 21, 1794 - Tartu: May 26, 1851 | Carl Christian

English chemist and fabric printer (1791–1866) | Fellow of the Royal Society | Lancashire: February 21, 1791 - Lancashire: November 30, 1866 | John Mercer

British meteorologist | Fellow of the Royal Society, Knight Bachelor | London: February 21, 1788 - Battle: August 8, 1873 | Francis Ronalds | London: February

German jurist (1779-1861) | Pour le Mérite for Sciences and Arts order, Order of the Black Eagle, Bavarian Maximilian Order for Science and Art (1853)

Chinese historian, politician and writer (1764–1849) | Chou ren zhuan | Yizheng: February 21, 1764 - Yizheng: November 27, 1849 | Ruan Yuan - 伯元

18th century Spanish physician | Real Audiencia de Quito: February 21, 1747 - Quito: December 27, 1795 | Eugenio Espejo | Real Audiencia de Quito: February 21

French physicist (1741-1817) | Knight of the Legion of Honour | Brest: February 21, 1741 - Paris: April 5, 1817 | Alexis-Marie de Rochon | Brest: February 21

Indian muslim scholar | book | Madrasah-i Rahimiyah | Delhi: February 21, 1703 - Delhi: August 20, 1762 | Shah Waliullah Dehlawi | Delhi: February 21, 1703

German mathematician and astronomer | Rinteln: February 21, 1651 - Hamburg: March 8, 1727 | Balthasar Mentzer | Rinteln: February 21, 1651 - Hamburg: March 8, 1727

German theologian (1632-1682) | Martin Luther University Halle-Wittenberg | Lutherstadt Wittenberg: February 21, 1632 - Gdańsk: December 13, 1682 | Aegidius

politician (1600-1678) | Babenhausen: February 21, 1600 - Windhaag bei Perg: May 21, 1678 | Joachim Windhag | Babenhausen: February 21, 1600 - Windhaag bei

French mathematician and engineer | Desargues' theorem, Desargues graph, Desargues configuration, Brouillon project d'une atteinte aux evenemens des rencontres

Italian scholar and art patron (1588-1657) | Order of Saint Stephen | Paper Museum, El diario del viaje a España del Cardenal Francesco Barberini | University of Pisa