Leonardus Alphonse Arture Laudij

Miss America 2023 | University of Wisconsin–Madison, University of Wisconsin–Stevens Point, Wausau West High School | Wausau: April 30, 2002 - Santa

Finnish mathematician | Ruth Lyttle Satter Prize in Mathematics (2021), Väisälä Prize (2016), New Horizons in Mathematics Prize (2019), SASTRA Ramanujan

Estonian philosopher | University of Tartu | Kiviõli: April 30, 1976 - Twickenham: June 10, 1744 | Kadri Simm | Kiviõli: April 30, 1976 - Twickenham: June 10, 1744

British scientist | University of Manchester Institute of Science and Technology | South Elmsall: April 30, 1972 - Nacka församling: February 18, 1960 | Gail

German philologist | David Burliuk International Mark | University of Münster | April 30, 1970 - Ružomberok: December 1, 1995 | Henrieke Stahl | April 30

Armenian mathematician, diplomat | Mkhitar Gosh Medal (2018) | Humboldt University of Berlin, Leipzig University, Yerevan State University, TU Dresden

German chemist and author | Berlin: April 30, 1967 - Paris: June 2, 1701 | Sven Doye | Berlin: April 30, 1967 - Paris: June 2, 1701

philosopher and feminist | University of Oviedo | Les Arriondes: April 30, 1963 - Lutsk: January 23, 2019 | Alicia Miyares | Les Arriondes: April 30, 1963

Swedish chemist (1962) | The KTH Great Prize (2014), FEBS/EMBO Women in Science Award (2019) | Lund University | April 30, 1962 - Cambridge: January 29, 1988

French director of the Nuclear Safety Institute | Officer of the National Order of Merit (2016), Officer of the Legion of Honour (2020) | École polytechnique

Soviet engineer | Russian President's Prize in the field of education, Honoured Radioman, Merited designer of the Russian Federation, Prize of the Government

Russian scientist | Russian Federation Presidential Certificate of Gratitude, Order of Honour, Order of Friendship, Order "For Merit to the Fatherland", 3rd

French philosopher | Aubusson: April 30, 1956 - Inverness: May 15, 2010 | Patrick Négrier (Patrick Negrier) | Aubusson: April 30, 1956 - Inverness: May 15, 2010

French activist (1955–2009) | Texas Tech University | 15th arrondissement of Paris: April 30, 1955 - 15th arrondissement of Paris: October 14, 2009 | Francis

Polish mathematician | University of Warsaw | Stalowa Wola: April 30, 1955 - Potomac: March 6, 2021 | Janusz Grabowski | Stalowa Wola: April 30, 1955

Ukrainian astrophysicist | Faculty of Physics of the Taras Shevchenko National University of Kyiv, Taras Shevchenko National University of Kyiv | Nizhny

Romanian mathematician | Alexandru Ioan Cuza University | Darabani: April 30, 1950 - January 1, 1555 | Mihnea Moroșan (Mihnea Morosan) | Darabani: April 30

American computer scientist | Turing Award (1986), IMU Abacus Medal (1982), Guggenheim Fellowship (1978), Paris Kanellakis Award (1999), O'Reilly Open Source

Polish philosopher | Faculty of History, Adam Mickiewicz University | Gryfice: April 30, 1948 - Munich: June 14, 1920 | Zbigniew Drozdowicz | Gryfice: April

German mathematician | Karl Heinz Beckurts Award (1999), Officer's Cross of the Order of Merit of the Federal Republic of Germany (1996) | University of Bonn

English recreational mathematician | Welwyn: April 30, 1944 - Moscow: April 12, 1971 | Lee Sallows | Welwyn: April 30, 1944 - Moscow: April 12, 1971

Soviet and Russian ecologist and physicist | MSU Faculty of Mechanics and Mathematics, Moscow State University | Moscow: April 30, 1944 - Saint Petersburg

Polish chemist | Wiktor Kemula Medal (2009), Officer of the Order of Polonia Restituta | University of Warsaw | Warsaw: April 30, 1944 - Washington, D.C.

Azerbaijani chemist | Shohrat Order, Honored Scientist of Azerbaijan | Samukh District: April 30, 1942 - Baku: January 1, 2015 | Siyavuş Qarayev (Siyavus

American writer | Inkpot Award, Ditmar Award, Hugo Award for Best Novelette (1976), Hugo Award for Best Short Story (1967), Hugo Award for Best Novel (1971)

American political scientist | University of Wisconsin–Madison, University of Oxford | Milwaukee: April 30, 1935 - Amsterdam: October 31, 1968 | Bertell

April 30, 1934 - Madrid: March 3, 1930 | Arnaldo Valentin Gauer | April 30, 1934 - Madrid: March 3, 1930

American social critic (1934–2017) | University of Chicago | Milwaukee: April 30, 1934 - Washington, D.C.: December 24, 2017 | Marcus Raskin | Milwaukee

Dutch philosopher | Amsterdam: April 30, 1932 - Heemstede: November 23, 2020 | Otto Duintjer | Amsterdam: April 30, 1932 - Heemstede: November 23, 2020

German Jesuit theologian (1932-2010) | Nieder-Roden: April 30, 1932 - Munich: July 5, 2010 | Albert Keller | Nieder-Roden: April 30, 1932 - Munich: July 5, 2010

American academic (1931–2023) | April 30, 1931 - August 26, 2023 | Carl Cohen | April 30, 1931 - August 26, 2023

French psychoanalyst (1930–1992) | Villeneuve-les-Sablons: April 30, 1930 - La Borde clinic: August 29, 1992 | Félix Guattari - Pierre-Félix Guattari

American chemist | Mount Holyoke College, University of Wisconsin–Madison | Boston: April 30, 1926 - Wauwatosa: January 3, 2020 | Marie Mercury Roth

New Zealand public servant (1924–2010) | Companion of the Order of the Bath, Fellow of the Institute of Physics, Fellow of the Royal Society Te Apārangi (1964)

German mathematician (1924-2017) | Cantor medal (1994) | University of Göttingen | Bautzen: April 30, 1924 - Göttingen: December 29, 2017 | Erhard Heinz

American scientist (1921–2014) | Magellanic Premium (1997), National Inventors Hall of Fame (2010), National Medal of Technology and Innovation (2004)

Order of the Badge of Honour, Medal "For the Development of Virgin Lands", Medal "Veteran of Labour" | Donetsk National Technical University | April 30

American mathematician and information theorist (1916–2001) | John Fritz Medal (1983), Alfred Noble Prize (1939), National Inventors Hall of Fame (2004)

1915-1984) physicist and solar researcher | Fellow of the Australian Academy of Science (1962), Edgeworth David Medal (1948) | Grafton: April 30, 1915

American mathematician and cryptanalyst | Buffalo: April 30, 1913 - Fairfax: August 10, 2006 | Genevieve Grotjan Feinstein | Buffalo: April 30, 1913 - Fairfax

German mathematician (1911-1998) | Hahn polynomials, continuous Hahn polynomials, continuous dual Hahn polynomials, Hahn–Exton q-Bessel function | Frederick

Soviet and Russian mathematician (1905–2012) | Medal "For Valiant Labour in the Great Patriotic War 1941–1945", Stalin Prize, 2nd degree, Bolzano Prize

New Zealand physicist, meteorologist (1901–1979) | Officer of the Order of the British Empire (1945), Fellow of the Royal Society Te Apārangi (1947), Fellow

Lieutenant od the Polish Army, chemist (1898-1940) | Adam Mickiewicz University in Poznań | April 30, 1898 - Katyn: April 30, 1940 | Tadeusz Tucholski | April

French mathematician (1896-1978) | University of Toulouse (1927) | Bastia: April 30, 1896 - La Ciotat: August 9, 1978 | Paul Vincensini | Bastia: April 30

Hindu Guru (1896–1982) | Bengal: April 30, 1896 - Dehradun: August 27, 1982 | Anandamayi Ma - নির্মলা সুন্দরী | Bengal: April 30

German philosopher (1881-1958) | Commander's Cross of the Order of Merit of the Federal Republic of Germany (1956), honorary doctor of the University of

Russian revolutionary (1879–1921) | Imperial Moscow Technical School | Kyiv: April 30, 1879 - Moscow: January 6, 1921 | Lev Karpov | Kyiv: April 30, 1879

Spanish admiral | Grand Cross of Naval Merit with white badge (1934), Grand Cross of the Civil Order of Alfonso X the Wise (1955) | Las Palmas de Gran Canaria

Polish psychologist, philosopher, translator historian (of philosophy and art), and artist | The Good News according to Matthew and Mark, cratism, Psychology

Italian physicist (1876-1937) | Matteucci Medal (1909) | University of Palermo | Augusta: April 30, 1876 - Rome: January 23, 1937 | Orso Mario Corbino

University of Tokyo | April 30, 1874 - Tashkent: November 3, 2020 | Tadayoshi Kihira | April 30, 1874 - Tashkent: November 3, 2020

German chemist (1874-1946) | Wiesentheid: April 30, 1874 - November 29, 1946 | Arthur Sauer | Wiesentheid: April 30, 1874 - November 29, 1946

German chemist (1866–1915) | Ludwig-Maximilian-University in Munich, University of Würzburg | Munich: April 30, 1866 - Sommepy-Tahure: October 6, 1915

German physicist (1864–1940) | Bayreuth: April 30, 1864 - Hof: June 14, 1940 | Karl Strehl | Bayreuth: April 30, 1864 - Hof: June 14, 1940

German inventor and early filmmaker (1863–1939) | Berlin: April 30, 1863 - Berlin: November 30, 1939 | Max Skladanowsky | Berlin: April 30, 1863 - Berlin

Glazov Seminary, Saint Petersburg Theological Academy | April 30, 1862 - Tver Governorate: January 1, 1754 | Vitaly Serebrenikov | April 30, 1862 - Tver

Polish chemist (1862-1929) | Commander of the Order of Polonia Restituta | Czekanów: April 30, 1862 - Warsaw: February 9, 1929 | Stanisław Bądzyński

Order of Saint Stanislaus, Order of Saint Anna | Imperial St. Petersburg University, Faculty of History and Philology of St. Petersburg University | April

American chemist | Massachusetts Institute of Technology | April 30, 1847 - July 14, 1886 | William Ripley Nichols | April 30, 1847 - July 14, 1886

Archduke of Austria (1839-1892) | Florence: April 30, 1839 - Vienna: January 18, 1892 | Archduke Karl Salvator of Austria | Florence: April 30, 1839 - Vienna

Order of Saint Anna, 2nd class | Moscow Imperial University, Faculty of Law | April 30, 1834 - June 10, 2015 | A. Chebyshev-Dmitrīev (A.

April 30, 1834 - Hongō-ku: December 31, 1935 | Felipe Picatoste | April 30, 1834 - Hongō-ku: December 31, 1935

Université de Strasbourg. Faculté des lettres, Jean Sturm Gymnasium, Collège Sainte-Barbe, Lycée Louis-le-Grand | April 30, 1828 - Borstel: January 1, 1956

Scottish peer, Liberal politician and writer on science, religion, and politics (1823-1900) | Fellow of the Royal Society (1851), Knight Companion of the Order

French philosopher (1823-1899) | Commander of the Legion of Honour | École Normale Supérieure | Paris: April 30, 1823 - Paris: October 4, 1899 | Paul Janet

German physicist (1809-1875) | University of Giessen | Kassel: April 30, 1809 - Freiburg im Breisgau: October 3, 1875 | Johann Heinrich Jakob Müller (Johann

German mathematician and physicist (1777–1855) | Lalande Prize (1809), Pour le Mérite for Sciences and Arts order (1842), Pour le Mérite, Bavarian

French astronomer and mathematician | Fellow of the American Academy of Arts and Sciences (1822) | Leipzig University | Leipzig: April 30, 1773 - Paris: June 22, 1825

chemist (1750-1826) | Alunda parish: April 30, 1750 - Stockholm City: May 20, 1826 | Pehr Bernhard Berndes | Alunda parish: April 30, 1750 - Stockholm City: May 20, 1826

French zoologist and natural philosopher | University of Poitiers | Fontenay-le-Comte: April 30, 1723 - Paris: June 23, 1806 | Mathurin Jacques Brisson

German scholar, poet and reformer (1488-1523) | University of Erfurt, University of Greifswald, University of Rostock, Alma Mater Viadrina, Leipzig University