Karl Heun

Estonian mycologist | April 3, 1980 - Woking: August 13, 1971 | Leho Tedersoo | April 3, 1980 - Woking: August 13, 1971

Medal "Guardian of National Memorials", Gold Medal "For Merit for Firefighting", Pro Patria Medal, Polish Cultural Merit Order, Silver Cross of Merit

editor-in-chief of Frontiers in Genetics | Pennsylvania State University, University of Crete | April 3, 1972 - Medellín: April 5, 2002 | Emmanouil

Croatian philosopher | Zagreb: April 3, 1972 - London: December 7, 1847 | Pavel Gregorić (Pavel Gregoric) | Zagreb: April 3, 1972 - London: December 7, 1847

Greek physicist | Imperial College London | Athens: April 3, 1971 - Thiruvananthapuram: August 16, 2001 | Fotini Markopoulou-Kalamara | Athens: April 3, 1971

Ukrainian journalist | Ternopil: April 3, 1964 - Ternopil: July 28, 2021 | Yaroslav Buiak | Ternopil: April 3, 1964 - Ternopil: July 28, 2021

Belgian philosopher | Paris 8 University, Université Libre de Bruxelles | City of Brussels: April 3, 1962 - Istanbul: January 28, 1953 | Véronique Bergen

Order "For Merit to the Fatherland", 4th class, Russian government prize for science and technology, Order of Alexander Nevsky (2019), Merited Scientist of

Australian nonlinear and optical physicist | Pawsey Medal (1998), Max Born Award (2022), Fellow of the Australian Academy of Science (2002), Harrie Massey

British transhumanist philosopher (born 1959) | Brasenose College | United Kingdom: April 3, 1959 - Birmingham: May 30, 1993 | David Pearce | United Kingdom

American computer scientist, mathematician and physicist | USENIX | California Institute of Technology, University of Florida | Miami: April 3, 1959 - Leiden

Italian-American writer, poet, inventor, actress, voice artist (1958-2014) | Flight: A Quantum Fiction Novel | Florence: April 3, 1958 - Los Angeles: July 8, 2014

French chemist | University of Houston | Langres: April 3, 1956 - Quezon City: August 6, 2011 | Brigitte Boisselier | Langres: April 3, 1956 - Quezon City

mathematician | Leconte Prize (2013) | Yale University | Neuilly-sur-Seine: April 3, 1955 - 13th arrondissement of Paris: January 22, 2025 | Zoé Chatzidakis

physicist (1955-2020) | Fellow of the American Association for the Advancement of Science (2009), Fellow of the American Physical Society, Willis E. Lamb Award (2002)

Polish local government and politician, social activist, bioethicist, PhD, university lecturer, entrepreneur | Medal of the National Education Commission

American cultural critic | Yale University | April 3, 1954 - January 1, 1989 | Steven Shaviro | April 3, 1954 - January 1, 1989 | Yale University

English philosopher | Commander of the Order of the British Empire (2016), Fellow of the Royal Society of Arts, Fellow of the Royal Society of Literature

French economist (1949-2021) | Paris Nanterre University, Panthéon-Assas University Paris | 6th arrondissement of Lyon: April 3, 1949 - Corvara in Badia: July 18, 2021

politician | Honorary Diploma of the Verkhovna Rada of Ukraine, Honored Scientist of Ukraine, State Prize of Ukraine in Science and Technology (2017), Honorary

University of Vienna | April 3, 1941 - December 26, 1972 | Gerfried Nell | April 3, 1941 - December 26, 1972 | University of Vienna

Soviet physicist, Ph.D. Voronezh State University 1967 | Tajik National University | Vahdat District: April 3, 1940 - Voronezh: June 23, 1977 | Temur Sabirov

Rector of Moscow State University | honorary doctor of the Voronezh State University (1999), Order "For Merit to the Fatherland", 2nd class (2005), Mikhail

Czech-Swiss chemist and professor at ETH Zurich | ETH Zurich | Prague: April 3, 1938 - Zurich: July 18, 2019 | Paul Rys | Prague: April 3, 1938 - Zurich: July

Canadian philosopher | Collège Saint-Sacrement, University of Fribourg, Laval University, Collège Jean-de-Brébeuf | Saint-Barnabé-Nord: April 3, 1938

Educator, an Honoured Pedagogue of Armenia | Armenian State Pedagogical University | Yerevan: April 3, 1938 - Yerevan: April 10, 2020 | Rima Khachatryan

scientist | Nakhchivan: April 3, 1937 - January 1, 2003 | Adalat Rahimli | Nakhchivan: April 3, 1937 - January 1, 2003

Venezuelan rector | University of California, Berkeley | Venezuela: April 3, 1937 - Caracas: July 27, 2021 | Enrique Planchart Rotundo - Enrique Aurelio

American businessman (1936–2015) | Richard J. Bolte Sr. Award (2013), Officer of the Order of the British Empire | University of Nottingham | Kings Norton

Finland Swedish writer and debater | Thanks for the Book Award (1979), Trevi award (1978), Pro Finlandia Medal of the Order of the Lion of Finland (1992)

Polish geologist | Medal of the National Education Commission, Knight of the Order of Polonia Restituta, Gold Cross of Merit | AGH University of Science and Technology

Soviet and Russian scientist (1934-2020) | VDNKh silver medal | Almaty: April 3, 1934 - Belgorod: September 7, 2020 | Viktor Klassen | Almaty: April 3, 1934

Colombian chemist | University of Antioquia | Belmira: April 3, 1933 - Medellín: September 17, 1996 | Dolly Molina de Vargas | Belmira: April 3, 1933

Bishop of Aachen (1929-1994) | honorary doctor of the RWTH Aachen University (1988), Officer's Cross of the Order of Merit of the Federal Republic of Germany (1984)

Russian scientist | Merited Scientist of the Russian Federation, Order of Friendship, Mikhail Lomonosov Award, Order of the October Revolution, Order of the

Order of the Badge of Honour, State Prize of Ukraine in Science and Technology, Order of Prince Yaroslav the Wise, Honored Jurist of Ukraine, Honorary

Czech philosopher, theologian, writer and university professor (1922-2004) | Order of Tomáš Garrigue Masaryk (1998), Jacob Burckhardt Prize (1987), honorary

German chemist and author (1921-2021) | honorary doctor of the University of Munich, honorary doctor of the University of Halle-Wittenberg, Heyrovský medal

Russian mathematician (1917-1997) | Order of the Red Banner of Labour, Order of the Republic, Moldavian SSR State Prize, Order of the Badge of Honour, Order of

Turkish pediatrician and medical academic (1915-2010) | honorary doctorate from the University of Nice-Sophia Antipolis (1973), National Order of Merit

The Chalmers' Medal (1979) | Uppsala University | April 3, 1912 - Pregny-Chambésy: May 25, 1909 | Nils Gralén (Nils Gralen) | April 3, 1912

Azerbaijani philosopher (1908–1950) | Stalin Prize, 2nd degree, Order of the Badge of Honour (1940), Stalin Prize, 3rd degree, Medal "For the Defence of the

American mathematician and cryptanalyst (1907-1994) | Fellow of the Institute of Mathematical Statistics (1942), Wilks Memorial Award, Fellow of the American

Soviet mathematician (1907-1989) | Krylov prize (1978), State Prize of Ukrainian SSR in Science and Technology (1987), Wolf Prize in Mathematics (1982)

Estonian chemist | University of Paris, University of Tartu | Läste: April 3, 1898 - Männiku: June 15, 1936 | Jaan Kalviste | Läste: April 3, 1898

French mathematician (1890–1972) | École Normale Supérieure | Villefranche-de-Rouergue: April 3, 1890 - Saint-Jean-de-Luz: July 16, 1972 | Robert Deltheil

Polish philosopher (1886–1980) | Idzi Radziszewski prize (1974), Knight of the Legion of Honour, Commander of the Order of Polonia Restituta | Warsaw

Swedish politician (1885–1966) | Lund University | Kristianstad: April 3, 1885 - Gothenburg: December 22, 1966 | Malte Jacobsson | Kristianstad: April 3

Czech roman catholic priest (1884-1959) | Javoříčko: April 3, 1884 - Litoměřice: January 2, 1959 | Jan Bernardin Skácel (Jan Bernardin Skacel)

Japanese philosopher and right-wing activist | Waseda University | Kamo district: April 3, 1883 - Tokyo: August 19, 1937 | Ikki Kita - 北 輝次郎 | Kamo

Czech indologist (1882–1953) | honorary citizen of Moravské Budějovice (1938) | Charles University, Faculty of Arts, Charles University in Prague

Austrian philosopher and writer (1880-1903) | Sex and Character | University of Vienna | Vienna: April 3, 1880 - Vienna: October 4, 1903 | Otto Weininger

French politician (1873-1950) | Collège Stanislas de Paris, École polytechnique | Paris: April 3, 1873 - Paris: May 28, 1950 | Marc Sangnier | Paris: April

Dutch mathematician (1873-1953) | Expedition Cross with clasp Atjeh 1896–1900 (1902), Knight of the Order of the Netherlands Lion, Expedition Cross with

Polish physicist | Cross of Independence, Officer of the Order of Polonia Restituta | Imperial University of St. Vladimir | Lebedyn: April 3, 1873 - Świder

British engineer (1872–1938) | London: April 3, 1872 - Auckland: March 11, 1938 | Henry William Clothier | London: April 3, 1872 - Auckland: March 11, 1938

British civil servant and author | Knight Commander of the Order of the Bath, baronetcy | University College, Oxford, Christ Church, Winchester College

Romanian chemist | Humboldt University of Berlin | Focșani: April 3, 1853 - Bucharest: May 4, 1903 | Alfons Oscar Saligny | Focșani: April 3, 1853

German astronomer (1841-1907) | Gold Medal of the Royal Astronomical Society (1893), Bavarian Maximilian Order for Science and Art (1906), Pour le Mérite for

German philosopher, writer and occultist (1839-1899) | honorary citizenship | Königlich Bayerische Pagerie, Ludwig-Maximilian-University in Munich, Ludwig

American educator and mathematician (1835–1915) | Columbia University | Philadelphia: April 3, 1835 - New York City: September 10, 1915 | John Howard Van

American writer and philosopher | Harvard Divinity School, Phillips Academy | April 3, 1833 - March 24, 1915 | John Albee | April 3, 1833 - March 24, 1915

mathematician (1832-1912) | Leipzig University | Chemnitz: April 3, 1832 - Zurich: November 19, 1912 | Wilhelm Fiedler | Chemnitz: April 3, 1832 - Zurich

Russian philosopher (1806-1856) | Imperial Moscow University | Moscow: April 3, 1806 - Saint Petersburg: June 23, 1856 | Ivan Kireyevsky | Moscow: April 3

Danish mathematician | Aalborg: April 3, 1796 - Copenhagen: January 17, 1883 | L.S. Kellner | Aalborg: April 3, 1796 - Copenhagen: January 17, 1883

Irish science writer (1793–1859) | Fellow of the Royal Society | Trinity College Dublin | Dublin: April 3, 1793 - Naples: April 29, 1859 | Dionysius Lardner

French physician (1778-1862) | Officer of the Legion of Honour | Paris Medical Faculty | Saint-Georges-sur-Cher: April 3, 1778 - 16th arrondissement of Paris

German philosopher (1748-1803) | University of Göttingen | Bremervörde: April 3, 1748 - Marburg: May 24, 1803 | Dietrich Tiedemann | Bremervörde: April 3

English physician and scientist (1715–1787) | Copley Medal (1745), Fellow of the Royal Society, Knight Bachelor | London: April 3, 1715 - London: May 10, 1787

British clockmaker, horologist and inventor of the marine chronometer | Copley Medal (1749) | Foulby: April 3, 1693 - London: March 24, 1776 | John Harrison

German theologian (1565-1621) | University of Helmstedt | Westerstede: April 3, 1565 - Rostock: June 2, 1621 | Eilhard Lubinus | Westerstede: April 3, 1565