Siegfried Langgaard

Slovenian painter | Ljubljana: July 13, 1979 - Buffalo: July 23, 1930 | Izar Lunaček (Izar Lunacek) | Ljubljana: July 13, 1979 - Buffalo: July 23, 1930

Russian mathematician and Professor | MSU Faculty of Computational Mathematics and Cybernetics | Ivanteyevka: July 13, 1979 - Almaty: June 17, 2017 | Alexander

Russian mathematician | Petrov Prize (2016) | Moscow State Pedagogical University | Moscow: July 13, 1973 - January 1, 1927 | Mikhail Khlebnikov | Moscow: July

Russian university teacher | Saint Petersburg State University | Saint Petersburg: July 13, 1972 - Palo Alto: October 20, 2014 | Cyril Kozhurin | Saint

German mathematician and professor | Technical University of Braunschweig | Brunswick: July 13, 1969 - Gibraltar: July 4, 1943 | Ralf Seppelt | Brunswick: July

I. Ya. Horbachevsky Ternopil National Medical University of Ministry of Health Care of Ukraine | July 13, 1969 - Havana: July 9, 1706 | Oleksandra Oleshchuk

scientist | Faculty of Philology of Saint Petersburg State University | Saint Petersburg: July 13, 1965 - Moscow: November 29, 2022 | Andrey Stepanov | Saint

Russian mathematician | Faculty of Mechanics and Mathematics, Novosibirsk State University | July 13, 1964 - Moscow: January 30, 1989 | Sergey Sudoplatov

scientist | Russian Federation's Government Award, Government Prize of the Russian Federation, State Prize of the Russian Federation, Order "For Merit to the

economist (Leicester University; Hebrew University of Jerusalem) | Hebrew University of Jerusalem | July 13, 1959 - August 8, 1978 | Eyal Winter | July 13

historian | Széchenyi Prize (2009) | Tata: July 13, 1959 - Olivença: June 20, 1648 | Gábor Boros (Gabor Boros) | Tata: July 13, 1959 - Olivença: June 20, 1648

American economist | Normandy High School, University of Michigan College of Literature, Science, and the Arts, University of Denver, Bernard Zell Anshe Emet

Russian scientist | Philological Faculty of Moscow State University | Moscow: July 13, 1958 - Pushkino: May 12, 2020 | Sergey Krylov | Moscow: July 13, 1958

British-American mathematician | Fellow of the Royal Society (1994), Fellow of the American Academy of Arts and Sciences, Rollo Davidson Prize (1980), Fellow

Swedish mathematician | Wallenberg Prize (1990), Salem Prize (1995) | Stockholm University | July 13, 1952 - Lima: April 20, 1967 | Håkan Eliasson (Hakan

July 13, 1951 - Utena: June 7, 1946 | Eugenijus Butkus | July 13, 1951 - Utena: June 7, 1946

Russian scientist | Honoured Worker of Higher Professional Education of the Russian Federation (2004), Medal for services in conducting the population census

Bulgarian Antarctic researcher | July 13, 1950 - Heverlee: May 17, 2022 | Roumiana Metcheva | July 13, 1950 - Heverlee: May 17, 2022

Soviet/Russian aerospace engineer, scientist (1950-) | Russian Federation Government Certificate of Honour, Order of Honour, Russian government prize for

American astronaut, astronomer | Fellow of the American Association for the Advancement of Science (2012), United States Astronaut Hall of Fame (2009) | Harvey

Italian mathematician and logician | Commander of the Order of Merit of the Italian Republic | University of Illinois Urbana–Champaign, University of

American mathematician | Fellow of the American Academy of Arts and Sciences (2023), Noether Lecture (2007), Fellow of the Royal Society (2021), Fellow of the

Estonian journalist and chemist | University of Tartu | Tartu: July 13, 1947 - Boston: November 22, 2002 | Toomas Jüriado (Toomas Juriado) | Tartu: July 13

Spanish philosopher | honorary doctorate of the University of Alcala (2015), honorary doctorate of the University of Salamanca (2018), honorary doctorate of

David Burliuk International Mark | Moscow Institute of Physics and Technology | July 13, 1945 - Montreal: February 11, 2023 | Aleksandr T. Nikitaev | July

Hungarian inventor | honorary doctor of the Moholy-Nagy University of Art and Design, International Dennis Gabor Award (1995), Hazám-díj (2012), honorary

American philosopher | Fellow of the American Association for the Advancement of Science (2018) | Johns Hopkins University, Barnard College | July 13, 1944

Hungarian mathematician from Romania (1943–2023) | Babeș-Bolyai University | Arad: July 13, 1943 - Budapest: June 9, 2023 | Gheorghe Halic | Arad: July 13

German chemist and titular professor at the Swiss Federal Institute of Technology (ETH), Zurich | Montabaur: July 13, 1943 - May 29, 2023 | Ulrich

German mathematician | Goethe University Frankfurt | Limburg an der Lahn: July 13, 1943 - Berlin: April 12, 1940 | Franz Georg Timmesfeld | Limburg an der

British astronomer | Fellow of the Royal Society, Herschel Medal (1992) | Victoria University of Manchester, St John's College, Portsmouth Grammar School

Swedish physicist | Uppsala University | Uppsala: July 13, 1942 - January 1, 1986 | Anders Bárány (Anders Barany) | Uppsala: July 13, 1942 - January 1, 1986

American mathematician | Fellow of the American Mathematical Society (2015) | Vanderbilt University, Swarthmore College, Massachusetts Institute of Technology

Ukrainian astronomer and mathematician | Honored Scientist of Ukraine | Lviv Polytechnic | Cherniakhiv: July 13, 1940 - Washington, D.C.: April 4, 2002

German writer and mathematician (1938–2014) | National Prize of East Germany, Heinrich Mann Prize (1985) | Humboldt University of Berlin | Gera: July 13

Czech chemist (1938-2013) | Prague: July 13, 1938 - June 7, 2013 | Petr Beneš (Petr Benes) | Prague: July 13, 1938 - June 7, 2013

American aerospace researcher and educator | Daniel Guggenheim Medal (2019), Society of Women Engineers Achievement Award (1975), Ted Belytschko Applied

German mathematician (1936–2015) | Karl-Georg-Christian-von-Staudt-Preis (1994) | Johannes Gutenberg University Mainz | Leipzig: July 13, 1936 - October 16, 2015

French writer (1935-2003) | Prix Médicis (1964) | L'Opoponax, The Straight Mind and Other Essays, The Lesbian Body, Les Guérillères | Sorbonne | Dannemarie

Nigerian writer | Golden Magnolia (2023), honorary doctorate from Princeton University, Nigerian National Order of Merit Award, Fellow of the Royal Society of

Russian scientist | Lomonosov Gold Medal, Russian Federation Presidential Certificate of Gratitude, Order of the Badge of Honour, Order "For Merit to the

Russian physicist (1929–2023) | Russian Federation Presidential Certificate of Honour, USSR State Prize, Pomeranchuk Prize (2011), Order of Honour, Landau

German mathematician (1929-2004) | Heidelberg University | Stuttgart: July 13, 1929 - Münster: January 26, 2004 | Hans-Joachim Nastold | Stuttgart: July 13

Soviet physicist (1924-2000) | MSU Faculty of Physics | Saratov: July 13, 1924 - Moscow: January 25, 2000 | Boris Medvedev | Saratov: July 13, 1924 - Moscow

Université de Paris 1949 | Cours Peccot (1953), Concours général (1939), Commander of the French Order of Academic Palms (1976) | University of Paris

Polish-British physicist | honorary doctorate of the Łódź University of Technology (1998) | July 13, 1922 - February 7, 2005 | A. K. Jonscher - Andrzej

Estonian chemist and science historian | Paul Kogerman medal (1983), honorary citizen of Tartu, Order of the White Star, 3rd Class (2001) | University of Tartu

American chemist (1915-2010) | American Institute of Chemists Gold Medal (2005) | University of the Sciences in Philadelphia, Yale University | Bethel: July

American chemist | ACS Award for Creative Invention (1974), ACS Award in Pure Chemistry (1946), Chemical Pioneer Award (1966), Charles Lathrop Parsons Award (1973)

Swiss philosopher (1910-2000) | honorary doctorate of the University of Basel, Ida Somazzi Award (1970), Karl Jaspers Prize (1992), Albert Einstein Medal (1987)

American mathematician | California Institute of Technology, Princeton University, University of Göttingen | New York City: July 13, 1904 - Berkeley: December 24, 1994

German physiologist and biochemist | Commander's Cross of the Order of Merit of the Federal Republic of Germany | University of Kiel | Meissen: July 13, 1899

Greek politician ,former president of the Hellenic Republic (1899–1987) | Bavarian Order of Merit, honorary doctor of the University of Paris 1

Norwegian mathematician (1895–1988) | Commander of the Order of St. Olav, King Haakon VII Freedom Cross (1947), honorary doctor of the University of Uppsala

German mathematician and astronomer (1892–1989) | Cross of the Order of Merit of the Federal Republic of Germany | Ludwig-Maximilian-University in Munich

Estonian chemist | Pärnu: July 13, 1888 - New York City: February 18, 1953 | Leopold Kampmann | Pärnu: July 13, 1888 - New York City: February 18, 1953

American physicist (1888–1966) | Elliott Cresson Medal (1953), Frederic Ives Medal (1947), C.E.K. Mees Medal (1964) | Johns Hopkins University | Wisconsin

Utrecht University | July 13, 1880 - Karlsruhe: August 1, 1984 | Marius van Haaften | July 13, 1880 - Karlsruhe: August 1, 1984

American psychologist (1875-1932) | University of Chicago, University of Wyoming | Laramie: July 13, 1875 - Trenton: October 11, 1932 | June Downey | Laramie

Albanian politician, educator and mathematician (1873–1932) | Dardhë: July 13, 1873 - Florina: April 10, 1932 | Sotir Peçi (Sotir Peci) | Dardhë: July 13

Czech chemist | honorary doctorate of the Masaryk University (1939) | Faculty of Arts, Charles University in Prague | Mořice: July 13, 1873 - Luhačovice: July 19, 1943

Russian academic and writer (1869-1925) | Faculty of History and Philology of Moscow University | Chișinău: July 13, 1869 - Moscow: February 19, 1925

Bulgarian esoteric | Karnobat: July 13, 1868 - Burgas: January 27, 1918 | Penyu Kirov | Karnobat: July 13, 1868 - Burgas: January 27, 1918

Spanish-born French physician, hypnotist, and popularizer of occultism, who founded the modern Martinist Order (1865-1916) | Papus Tarot | A Coruña: July 13

Swedish inventor | Skeppsholm church parish: July 13, 1865 - Boo parish: March 1, 1960 | Anna Julie Heilborn | Skeppsholm church parish: July 13, 1865 - Boo

Honored Scientist of the RSFSR | Medical faculty of Moscow University, Moscow State University | July 13, 1864 - Lviv: August 19, 1961 | Petr Karuzin | July

American businessman, real estate builder, investor, inventor, writer, lieutenant colonel (1864–1912) | St. Paul's School, Harvard University | Rhinebeck

German chemist and art collector (1852-1929) | August Wilhelm von Hofmann Medal (1927) | Charlottenburg: July 13, 1852 - Cairo: February 13, 1929 | Franz

American inventor | Franklin: July 13, 1850 - Hyattsville: December 12, 1929 | James Harris Rogers | Franklin: July 13, 1850 - Hyattsville: December 12, 1929

German mathematician (1833-1897) | University of Göttingen, Realschule | Bleckede: July 13, 1833 - Göttingen: November 2, 1897 | Ernst Christian Julius

Italian chemist (1826-1910) | Faraday Lectureship Prize (1872), Copley Medal (1891), Foreign Member of the Royal Society (1889) | Museo Nacional Centro de Arte

chemist (1824–1916) | Fellow of the Royal Society, Bakerian Lecture (1882) | Höhere Gewerbeschule Kassel | Wolfhagen: July 13, 1824 - Kassel: December 9, 1916

July 13, 1821 - Stoke Mandeville Hospital: February 19, 2020 | Heinrich Durège (Heinrich Durege) | July 13, 1821 - Stoke Mandeville Hospital: February 19, 2020

Finnish engineer (1817–1885) | Hamina Cadet School | Sortavala: July 13, 1817 - Helsinki: February 5, 1885 | August Fredrik Soldan | Sortavala: July 13, 1817

Danish engineer and physicist (1815-1888) | Order of the Dannebrog | Holbæk: July 13, 1815 - Frederiksberg: March 21, 1888 | Ludwig A. Colding | Holbæk: July

Scottish chemist, born 1811 (1811–1883) | Fellow of the Royal Society of Edinburgh, Fellow of the Royal Society | University of Strathclyde | Glasgow: July

Wales-born American photographer | The United States Capitol; John Plumbe Jr. (American, born United Kingdom, 1809 - 1857); 1846; Daguerreotype; 8.9 × 11.9 cm

mathematician and pedagogue | Warsaw: July 13, 1798 - Warsaw: November 30, 1880 | Jakub Centnerszwer | Warsaw: July 13, 1798 - Warsaw: November 30, 1880

German mathematician (1741-1808) | University of Göttingen, Leiden University, Leipzig University | Dresden: July 13, 1741 - Leipzig: March 17, 1808 | Carl

scientist | Nuremberg: July 13, 1641 - Nuremberg: July 9, 1691 | Johann Paul Ebner von Eschenbach | Nuremberg: July 13, 1641 - Nuremberg: July 9, 1691

German philosopher | Tübingen: July 13, 1587 - November 13, 1629 | Johann Baptist Weiganmeir | Tübingen: July 13, 1587 - November 13, 1629