Indian cardiology researcher and inventor | Vellore: December 21, 2001 - Groningen: April 1, 1823 | Akash Manoj | Vellore: December 21, 2001 - Groningen: April 1, 1823

Ukrainian scientist | Institute of Philology Taras Shevchenko National University of Kyiv | Snovsk: December 21, 1979 - Prague: September 28, 1330 | Alina

Austrian mathematician | Fellow of the Society for Industrial and Applied Mathematics (2024), Philip Leverhulme Prize (2017), Whitehead Prize (2016)

German probability theorist | University of Paderborn | Bergisch Gladbach: December 21, 1970 - Kyiv: October 2, 1962 | Eva Löcherbach (Eva Locherbach)

Russian mathematician | MSU Faculty of Computational Mathematics and Cybernetics | Moscow: December 21, 1965 - October 5, 1862 | Alexey Shishkin | Moscow

engineer and entrepreneur | University of South Florida | United States: December 21, 1953 - Fitchburg: September 8, 2014 | Aaron Fechter | United States

German philosopher | University of Konstanz | Messkirch: December 21, 1952 - Stockholm: November 20, 1824 | Pirmin Stekeler-Weithofer | Messkirch: December 21

Brazilian physicist and engineer | Nature's 10 (2019), National Order of Scientific Merit | Fluminense Federal University, University of Campinas

mathematical biologist | Sapienza University of Rome | Metropolitan City of Rome: December 21, 1946 - Paris: August 6, 1930 | Mimmo Iannelli | Metropolitan

astronaut, academic researcher (1945-2021) | Texas Woman's University, Tarleton State University | Mineral Wells: December 21, 1945 - San Francisco: February 2, 2021

Israeli physicist | Michael Landau Prize (2003) | Bar-Ilan University, Technion – Israel Institute of Technology | December 21, 1943 - October 23, 1936 | Ora

philosopher | Carunchio: December 21, 1942 - March 5, 1871 | Mauro Di Giandomenico | Carunchio: December 21, 1942 - March 5, 1871

mathematician | Pólya Prize (1990), Fellow of the Royal Society | University of Sydney, University of Oxford, St Catherine's College | Australia: December 21

German mathematician | Louisiana State University | Heidelberg: December 21, 1941 - April 23, 2024 | Jürgen Herzog (Jurgen Herzog) | Heidelberg: December 21

Indian philosopher | Kolkata: December 21, 1940 - Munich: February 26, 1834 | Cyril Desbruslais | Kolkata: December 21, 1940 - Munich: February 26, 1834

academic, mathematician, professor of mathematics | Fellow of the American Mathematical Society (2013) | Moscow State University | December 21, 1940 - Ulm

Dutch scientist and writer | Delft University of Technology | Leeuwarden: December 21, 1939 - Cincinnati: December 16, 2012 | Cornelis Dirk Andriesse

Author, professor, mathemetician | University of Washington, University of Iowa | Winthrop: December 21, 1937 - Saint Petersburg: December 5, 2013 | Robert S.

Order of Prince Yaroslav the Wise, 5th class, Order of Merit (Ukraine), 3rd class, State Prize of Ukraine in Science and Technology, Medal "Veteran of Labour"

American environmentalist | Yeranos: December 21, 1936 - October 9, 2024 | Hakob Sanasaryan | Yeranos: December 21, 1936 - October 9, 2024

Scientist, Historian, Philosopher, Writer | University of Bucharest | Bucharest: December 21, 1934 - Nurmijärvi: July 13, 1997 | Denis Buican | Bucharest

Soviet engineer (1932-2015) | Moscow Power Engineering Institute, Moscow State University of Geodesy and Cartography | Odesa: December 21, 1932 - Moscow: July 26, 2015

American scientist | University of Wisconsin–Madison, University of Illinois system | December 21, 1929 - April 13, 2010 | Harry Gelboin | December 21, 1929

German inventor and entrepreneur (1928–2021) | Eberdingen: December 21, 1928 - February 1, 2021 | Ewald Kienle | Eberdingen: December 21, 1928 - February 1, 2021

Medal "For Labour Valour", Merited Inventor of the RSFSR, Order of the Red Banner of Labour, USSR State Prize, Medal "Veteran of Labour", Medal "For Valiant

American professor of philosophy (1925-2012) | Fellow of the Committee for Skeptical Inquiry | New York University, Columbia University | Newark: December 21

Polish chemist | Gold Cross of Merit, Officer of the Order of Polonia Restituta, Medal of the National Education Commission | Jagiellonian University

Italian politician, philosopher and mayor (1924–2005) | Livorno: December 21, 1924 - Livorno: January 20, 2005 | Nicola Badaloni | Livorno: December 21, 1924

Polish physicist (1924-2015) | Juliusz Słowacki Lyceum in Warsaw, Faculty of Physics of the University of Warsaw | Warsaw: December 21, 1924 - Warsaw: June 2, 2015

French mathematician and physicist (1922-2017) | Knight of the National Order of Merit, Officer of the Legion of Honour, Knight of the French Order of Academic

American actor (1922-2005) | star on Hollywood Walk of Fame | Columbia University, High School of Art and Design | New York City: December 21, 1922 - Los

British Army officer (1913-1941) | The King's School, Christ Church | Kolkata: December 21, 1913 - Libya: December 31, 1941 | Jock Lewes | Kolkata: December

scientist | Merited Worker of Higher Education of the Ukrainian SSR, Medal "Veteran of Labour", Order of Lenin, State Prize of Ukrainian SSR in Science and

Spanish chemist (1904-2003) | Universidad Central, Smith College | Pamplona: December 21, 1904 - Fuengirola: August 4, 2003 | Dorotea Barnés González

Japanese physicist (1898-1988) | Person of Cultural Merit (1964), honorary doctor of the Fudan University (1983), Order of the Rising Sun, 1st class, Order of

American physicist and astronomer (1898–1973) | Bruce Medal (1957), Fellow of the American Physical Society, Rumford Prize (1949), Henry Draper Medal (1942)

French physicist (1887–1945) | Three Physicists Prize | École Normale Supérieure | Besançon: December 21, 1887 - Sachsenhausen concentration camp: January 1, 1945

German chemist (1879–1945) | Jelenia Góra: December 21, 1879 - New York City: July 14, 1945 | Walter Fraenkel | Jelenia Góra: December 21, 1879 - New York

Polish philosopher | University of Fribourg | Lublin: December 21, 1878 - Kraków: May 18, 1949 | Jacek Woroniecki | Lublin: December 21, 1878 - Kraków: May 18, 1949

Polish logician, mathematician, philosopher, rector of the University of Warsaw (1878–1956) | Hungarian Order of Merit (1935), Commander of the Order of

Estonian mathematician (1877-1954) | Order of the White Star, 3rd Class (1939) | Imperial University of Dorpat, Hugo Treffner Gymnasium | Saru Rural

Czech biologist, philosopher and politic writer (1873–1942) | Order of Tomáš Garrigue Masaryk, 2nd class (1992) | Faculty of Arts, Charles University in

December 21, 1866 - Eskilstuna parish: December 20, 1792 | Adolf Rising | December 21, 1866 - Eskilstuna parish: December 20, 1792

1866-1929) | December 21, 1866 - July 30, 1929 | Melchior Böniger (Melchior Boniger) | December 21, 1866 - July 30, 1929

German mathematician, geheimrat and linguist (1859-1944) | Goethe Medal for Art and Science (1939) | Rißtissen: December 21, 1859 - Munich: February 13, 1944

French engineer (1851–1939) | Caméré prize (1918), Grand Officer of the Legion of Honour | Adolphe Bridge, pont des Catalans, Viaducts in Morez, Pont

German spectroscopist (1841–1913) | Markranstädt: December 21, 1841 - Leipzig: September 1, 1913 | Victor Schumann | Markranstädt: December 21, 1841

French chemist, pharmacist and professor (1839–1916) | Officer of the Legion of Honour | Paris: December 21, 1839 - Paris: April 24, 1916 | Émile

Portuguese philosopher (1822-1901) | Lisbon: December 21, 1822 - Lisbon: December 25, 1901 | Pedro de Amorim Viana | Lisbon: December 21, 1822 - Lisbon

Irish scientific writer (1821-1897) | Croonian Medal and Lecture (1880), Cunningham Medal (1848), Fellow of the Royal Society | School of Medicine, Trinity

Inventor of twin screw propeller | Ashton-under-Lyne: December 21, 1810 - Chorlton-on-Medlock: February 2, 1876 | Evan Leigh | Ashton-under-Lyne: December 21

English engineer, entrepreneur (1804–1887) | Fellow of the Royal Society, Albert Medal (1868) | Stockport: December 21, 1804 - Monte Carlo: January 22, 1887

Polish poet and activist (1796–1855) | Vilnius University | Miasata: December 21, 1796 - Kakoŭčyna: July 19, 1855 | Tomasz Zan | Miasata: December 21, 1796

Italian scientist | San Severo: December 21, 1762 - Naples: November 16, 1835 | Matteo Tondi | San Severo: December 21, 1762 - Naples: November 16, 1835

German chemist, pharmacist | Bad Langensalza: December 21, 1732 - Bad Langensalza: January 16, 1800 | Johann Christian Wiegleb | Bad Langensalza: December 21

physician, physiologist, botanist (1697-1755) | University of Jena | Jena: December 21, 1697 - Jena: July 22, 1755 | Georg Erhard Hamberger | Jena: December

Polish Jesuit, preacher, and writer | Ciechanów: December 21, 1622 - Wolbrom: January 1, 1686 | Tomasz Młodzianowski (Tomasz Mlodzianowski) | Ciechanów

German chemist | Nuremberg: December 21, 1511 - Helmstedt: November 24, 1577 | Erasmus Ebner | Nuremberg: December 21, 1511 - Helmstedt: November 24, 1577