P. A. Chekmarev

French mathematician | Cagnes-sur-Mer: June 19, 1975 - Sofia: July 18, 1977 | Laurent Fargues | Cagnes-sur-Mer: June 19, 1975 - Sofia: July 18, 1977

Estonian philosopher and historian | University of Cambridge, University of Tartu, Miina Härma Gymnasium | June 19, 1974 - Saint Petersburg: February 27, 1887

American mathematician | Fellow of the American Mathematical Society (2013) | Harvard University | June 19, 1974 - Israel: February 15, 2016 | David Ben-Zvi

organic chemistry researcher | Honored Scientist of Ukraine (2018), Excellence in Education of Ukraine Badge | Oles Honchar Dnipro National University

British philosopher (b. 1968) | Magdalen College | London: June 19, 1968 - June 20, 2012 | Timothy Morton | London: June 19, 1968 - June 20, 2012 | Magdalen College

American philosopher | University of Notre Dame, University of Wisconsin–Milwaukee, University of Chicago, Joliet Catholic Academy | Albuquerque: June 19

German mathematician | Oberwolfach Prize (1996) | Heriot-Watt University | Bonn: June 19, 1964 - New Delhi: March 29, 2016 | Gero Friesecke | Bonn: June 19

Nigerian professor, chemist, and inventor | Nigerian National Order of Merit Award (2016), Fellow of the Royal Society of Chemistry, Fellow of the African

German physicist | University of Potsdam, University of Freiburg, Imperial College London | Aachen: June 19, 1962 - Simon's Town: May 4, 1879 | Renate Loll

Greek economist and politician | St Paul's School, University of Oxford, University of Sussex, The Queen's College, Eton College | Rotterdam: June 19, 1960

Mexican activist (1957-) | Our Word Is Our Weapon, The Story of Colors, The Uncomfortable Dead | National Autonomous University of Mexico | Tampico: June 19

German philosopher | University of Bonn, University of Cologne | Düsseldorf: June 19, 1957 - Borth: August 30, 1979 | Andreas Speer | Düsseldorf: June 19

Colombian politician and mathematician | University of the Andes, University of Antioquia, University of Wisconsin–Madison, National University of Córdoba

researcher | Villum Kann Rasmussen Annual Award (2019) | Moscow Institute of Physics and Technology | Kopanskaya: June 19, 1955 - London: April 19, 1889

researcher | State Prize of the Russian Federation, Order of Honour, Order of Friendship | Novosibirsk State University | Novosibirsk: June 19, 1952 - Saint

American physicist | Fellow of the American Physical Society | Massachusetts Institute of Technology, California Institute of Technology | Neenah: June 19

Austrian mathematician | Peter Henrici Prize (2003), Fellow of the Society for Industrial and Applied Mathematics (2009) | University of Innsbruck, University of Geneva

Belgian meteorologist and climate scientist | doctor honoris causa from the Pierre and Marie Curie University (2005), Fellow of the International Science Council

Italian astrophysicist and mathematician (1948-2018) | Brouwer Award (2010) | University of Milan | Florence: June 19, 1948 - Ghezzano: November 28, 2018

Canadian writer, International PEN president and public intellectual | Order of Ontario, Manhae Prize (2010), Gordon Montador Award, Companion of the Order of

Gdańsk University of Technology | June 19, 1946 - Frankfurt: December 6, 1925 | Andrzej Bądkowski (Andrzej Badkowski) | June 19, 1946 - Frankfurt: December 6, 1925

British mathematician (1945-2017) | University of Warwick, University of Hull | St Albans: June 19, 1945 - Bengaluru: August 22, 2017 | Tim Poston | St Albans

Czech poet and lyricist (1941–2021) | participant in the resistance and resistance against communism | Czech Technical University in Prague | Prague: June

Russian chemist and school teacher | Honorary citizen of Perm (2011), Excellence in Public Education of the RSFSR, Honoured Higher education employee of the

scientist | Lenin Komsomol Prize, Merited Scientist of the Russian Federation, USSR State Prize | Bauman Moscow State Technical University, Bauman Moscow State

June 19, 1940 - Opole: January 1, 1991 | Joseph Grifone | June 19, 1940 - Opole: January 1, 1991

Russian scientist | VDNKh silver medal, VDNKh gold medal | Saint Petersburg State University of Aerospace Instrumentation | Tver Oblast: June 19, 1938

Chilean physicist | National Prize for Exact Sciences (2007), Guggenheim Fellowship | University of Virginia, Federico Santa María Technical University

Iranian neurosurgeon | Pirogov Gold Medal (2017), State Award of Lower Saxony (1988), Fedor-Krause Medal (2007), honorary doctorate (2017), Friendship Award

French philosopher (1937–2015) | Officer of the Legion of Honour (2009), Order of the Cross of Terra Mariana, 3rd Class | lycée du Parc, École normale

Taiwanese poet (1937–2025) | National Cultural Award | National Taipei University of Technology | Taipei: June 19, 1937 - January 15, 2025 | Li Kuei-Hsien

German mathematician and politician (1936-2016) | University of Hamburg | Chernyshevskoye: June 19, 1936 - July 17, 2016 | Dieter Biallas | Chernyshevskoye

Norwegian mathematician | honorary doctorate from University of Angers (2019) | University of Oslo | Kirkenes: June 19, 1936 - Beinn Bhreagh: August 2, 1922

Russian academic (1930–2012) | Honoured Worker of Higher Professional Education of the Russian Federation, Merited Scientist of the Russian Federation, Order of Honour

German-born researcher and inventor | University of Marburg | June 19, 1930 - January 17, 2007 | Gerhard W. Goetze | June 19, 1930 - January 17, 2007

Argentine chemist (1928–2012) | Otto Krause Technical School, University of Buenos Aires | Santiago Temple: June 19, 1928 - Buenos Aires: May 28, 2012

Order of the Red Banner of Labour, Medal "Veteran of Labour", Order of the Badge of Honour, VDNKh bronze medal, USSR State Prize | June 19, 1927 - Israel

Danish physicist (1922–2009) | John Price Wetherill Medal (1974), honorary doctor of the Peking University (1985), H. C. Ørsted Gold Medal (1970), Atoms for

World War II-era British Intelligence officer, cryptographer partially responsible for breaking the German Enigma code. Post-war businessman. | Christ's

German priest, theologian and philosopher (1915-2013) | Officer's Cross of the Order of Merit of the Federal Republic of Germany | Tutzing: June 19, 1915

Swedish politician (1911-2000) | honorary doctorate of the University of Graz, Atoms for Peace Award | Uppsala University | Kiruna: June 19, 1911 - Vienna

American chemist (1910-1985) | Herman Mark Award in Polymer Chemistry (1976), National Medal of Science (1974), Priestley Medal (1974), Elliott Cresson Medal

Soviet geologist (1908-1994) | Order of the Red Banner of Labour, Order of Friendship of Peoples, Hero of Socialist Labour, Medal "For Labour Valour", Medal

Danish mathematician (1907–1993) | Jessen's icosahedron, Jessen–Wintner theorem, Andersen-Jessen theorem | Skt. Jørgens Gymnasium, University of

Jewish-German-born British biochemist | Grand Officer of the Order of Merit of the Italian Republic (1956), Fellow of the Royal Society (1948), honorary

Dutch physicist (1903-1988) | Utrecht University | June 19, 1903 - October 22, 1988 | Johanna Geertruida van Cittert-Eymers | June 19, 1903 - October 22, 1988

Spanish politician (1903–1977) | Complutense University of Madrid, University of Vienna, Humboldt University of Berlin, University of Barcelona | Guatemala

Italian journalist, intellectual and radical liberal and anti-fascist (1901–1926) | University of Turin | Turin: June 19, 1901 - Paris: February 15, 1926

Czech scientist (1901–1972) | Berlin: June 19, 1901 - Berlin: December 13, 1972 | Erich Hudec | Berlin: June 19, 1901 - Berlin: December 13, 1972

French mathematician | Resistance Medal, Croix de guerre 1939–1945 | Saint Petersburg: June 19, 1900 - Paris: January 17, 1990 | Léon Motchane (Leon

English physical chemist (1897-1967) | Copley Medal (1962), Lavoisier Medal (1935), Liversidge Award (1939), Bakerian Lecture (1946), Leverhulme Medal (1960)

Peruvian writer and journalist | Arequipa: June 19, 1897 - Lima: November 9, 1969 | Gamaliel Churata | Arequipa: June 19, 1897 - Lima: November 9, 1969

Azerbaijani physician | Honored Scientist of the Azerbaijan SSR | Saint Petersburg Female Medical Institute | Dağ Kəsəmən: June 19, 1883 - Baku: April 4, 1982

Romanian American engineer, businessman and aviation pioneer (1882-1940) | University of Liège, Kharkiv Practical Technological Institute, Kharkiv Polytechnic Institute

Swiss chemist (1881-1973) | Walzenhausen: June 19, 1881 - Zurich: January 12, 1973 | Paul Schläpfer (Paul Schlapfer) | Walzenhausen: June 19, 1881 - Zurich

British engineer | Knight Bachelor | Christ's College, Finchley, King's College London | London: June 19, 1875 - Lincoln: September 24, 1946 | William Tritton

German chemist (1871-1957) | Hanover: June 19, 1871 - Göttingen: December 27, 1957 | August Klages | Hanover: June 19, 1871 - Göttingen: December 27, 1957

German chemist (1869–1948) | Essen: June 19, 1869 - Bischofswiesen: March 8, 1948 | Erwin Quedenfeldt | Essen: June 19, 1869 - Bischofswiesen: March 8, 1948

Swedish engineer and inventor (1869-1924) | June 19, 1869 - August 30, 1924 | Waldemar Jungner | June 19, 1869 - August 30, 1924

German geodesist (1859-1906) | Xanten: June 19, 1859 - Hanover: August 22, 1906 | Carl Johann Conrad Reinhertz | Xanten: June 19, 1859 - Hanover: August 22, 1906

American writer, publisher, artist, and philosopher | Bloomington: June 19, 1856 - Atlantic Ocean: May 7, 1915 | Elbert Green Hubbard | Bloomington: June 19

American academic administrator | University of Virginia | Hampden-Sydney: June 19, 1855 - Mission Health System: June 15, 1945 | Charles William Dabney

Finnish mathematician (1854-1933) | Order of Saint Anna, 3rd class, Commander of the Order of the White Rose of Finland | Mellin transform | University of Helsinki

June 19, 1854 - Chernivtsi: February 10, 1915 | Alois Schwarz | June 19, 1854 - Chernivtsi: February 10, 1915

Czech pedagogue and classical filologist based in Bulgaria | Order of Civil Merit | Malovičky: June 19, 1853 - Sofia: January 1, 1927 | Jan Brožka (Jan

American dentist (1852–1929) | Harvard School of Dental Medicine, Harvard Medical School | Charlestown: June 19, 1852 - October 18, 1929 | William Herbert

British academic physicist (1851-1916) | Fellow of the Royal Society | Bootham School, University of London | York: June 19, 1851 - Greater London: June 12, 1916

Baltic German physicist (1850-1925) | Order of Saint Stanislaus, 3rd class, Order of Saint Anna, 2nd class, Order of Saint Stanislaus, 2nd class, Order of St.

Italian astronomer (1846-1928) | University of Padua | Šempeter pri Gorici: June 19, 1846 - Arcetri: February 20, 1928 | Antonio Abetti | Šempeter pri

Hungarian philosopher (1843–1917) | Kadarkút: June 19, 1843 - Budapest: June 11, 1917 | József Bokor (Jozsef Bokor) | Kadarkút: June 19, 1843 - Budapest

Spanish politician, writer, journalist, philosopher and historian (1832-1899) | Grand Cross of the Order of Charles III, Grand Cross of the Order of Isabella

American divine and philosopher (1829–1900) | Bowdoin College, Harvard Divinity School, Harvard University | Brunswick: June 19, 1829 - October 16, 1900

French philosopher (1819-1914) | Officer of the Legion of Honour (1894) | École Normale Supérieure | Milan: June 19, 1819 - Saint-Georges-Buttavent: March 18, 1914

Australian explorer (1797–1873) | Toongabbie: June 19, 1797 - Yass: April 19, 1873 | Hamilton Hume | Toongabbie: June 19, 1797 - Yass: April 19, 1873

German pharmacist (1783 – 1841) | Paderborn: June 19, 1783 - Hamelin: February 20, 1841 | Friedrich Sertürner (Friedrich Serturner) | Paderborn: June 19

French priest, philosopher and political theorist (1782–1854) | Saint-Malo: June 19, 1782 - Paris: February 27, 1854 | Félicité de La Mennais (Felicite de

Swedish mathematician and physicist | Order of the Red Eagle 4th Class | June 19, 1777 - Greifswald: March 26, 1859 | Gustaf Salomon Tillberg | June 19, 1777

French mathematician | Gergonne point, contact triangle, Gergonne line | Nancy: June 19, 1771 - Montpellier: May 4, 1859 | Joseph Diez Gergonne | Nancy: June

French mathematician (1754-1793) | Names inscribed under the Arc de Triomphe | Tours: June 19, 1754 - Mainz-Kastel: June 13, 1793 | Jean Baptiste Meusnier

Czech composer and violinist | Symphony in A major | Charles University | Havlíčkův Brod: June 19, 1717 - Mannheim: March 27, 1757 | Johann Stamitz

Russian mathematician | Arithmetic (Magnitsky book) | Joseph-Volokolamsk Monastery, Slavic Greek Latin Academy, Stolobny Island, Simonov Monastery | Ostashkov

Czech mathematician | Palacký University Olomouc, Charles University | Smržice: June 19, 1648 - Brno: July 28, 1715 | Jakub Kresa | Smržice: June 19, 1648

French mathematician, physicist, inventor, writer, and Christian philosopher (1623–1662) | Pascal's pyramid, Pascal's law, Pascal's Wager, Pascal's

German mathematician and astronomer (1613-1691) | Rudolstadt: June 19, 1613 - Nantes: February 17, 1691 | Johann Heinrich Voigt | Rudolstadt: June 19, 1613