University of the Basque Country | April 28, 1990 - Bucharest: October 8, 1954 | Jone Uria | April 28, 1990 - Bucharest: October 8, 1954 | University of the

Norwegian philosopher | April 28, 1985 - Pittsburgh: December 9, 1932 | Ole Martin Moen | April 28, 1985 - Pittsburgh: December 9, 1932

Russian scientist | Miass: April 28, 1970 - Weybridge: December 1, 1859 | Vyacheslav Yudin | Miass: April 28, 1970 - Weybridge: December 1, 1859

American chemist | Biemann Medal (2009), Pfizer Award in Enzyme Chemistry (2007), Packard Fellowship for Science and Engineering (2002) | Cornell University

Ukrainian scientist | National Pedagogical Dragomanov University | Kyiv: April 28, 1968 - Moscow: November 29, 2022 | Anatoly Podolsky | Kyiv: April 28, 1968

Spanish philosopher and essayist | Complutense University of Madrid | Valencia: April 28, 1968 - January 1, 1588 | Juan Arnau | Valencia: April 28, 1968

Swiss architect | Knight of the Order of Cultural Merit (2017) | Swiss Federal Institute of Technology in Lausanne | Pully: April 28, 1967 - Berlin: March 7, 1729

Norwegian mathematician and professor | Princeton University | Oslo: April 28, 1966 - Kyiv: January 1, 2012 | John Rognes | Oslo: April 28, 1966 - Kyiv

Belgian mathematician, rector of UCLouvain | Fellow of the Society for Industrial and Applied Mathematics (2015), IEEE Fellow | Grenoble Institute of

Swedish professor in technology management | Chalmers University of Technology | April 28, 1964 - Tallahassee: March 22, 2016 | Sofia Börjesson (Sofia

Indian chemist | Lucknow: April 28, 1963 - Krško: April 28, 1920 | Atul Kumar | Lucknow: April 28, 1963 - Krško: April 28, 1920

German philosopher | University of Hamburg, University of Fribourg, University of Oxford | Hamburg: April 28, 1960 - Frederiksberg: March 27, 1912 | Michael

Polish physicist | University of Silesia in Katowice | April 28, 1960 - Kraków: August 10, 2014 | Zbigniew Nawrat | April 28, 1960 - Kraków: August 10, 2014

Spanish research, teaching and chemist | Santa Cristina de la Polvorosa: April 28, 1957 - March 14, 1910 | María José Toro Nozal (Maria Jose Toro Nozal)

inventor of Neuticles and other pet implantation devices, author and IG Nobel Peace Prize winner | Ig Nobel Prize (2005) | University of Central Missouri

German engineer of Romanian origin | Constanța: April 28, 1951 - Oxford: April 8, 2008 | Cornel Stan | Constanța: April 28, 1951 - Oxford: April 8, 2008

French mathematician and academic | Knight of the Legion of Honour (2009), Knight of the National Order of Merit (2007), honorary doctorate of the University

American electrical engineer from India | Global Energy Prize (2015), IEEE Lamme Medal (1999), J. J. Ebers Award (1998), North Carolina Award for Science

Ukrainian physicist | State Prize of Ukraine in Science and Technology, For Scientific Achievements Badge, Honored Scientist of Ukraine | Odesa National

Indian scientist | Puttur: April 28, 1947 - May 3, 1976 | Dinker Belle Rai | Puttur: April 28, 1947 - May 3, 1976

American physicist | Fellow of the American Physical Society, Lilienfeld Prize (2009) | Tata Institute of Fundamental Research, University of California

American physicist | Fellow of the American Physical Society, Max Delbrück Prize in Biological Physics (2000), Max Planck Research Award (1993), Fellow of the

Hungarian philosopher | Palladium (2004) | Ferenc Csik Primary School and Gymnasium, Eötvös Loránd University | Elek: April 28, 1945 - Belgrade: January 9, 1911

American mathematician | University of California, Berkeley | Chvalkovice: April 28, 1944 - Paris: April 26, 1879 | Karel Prikry | Chvalkovice: April 28, 1944

Polish physicist | Kraków: April 28, 1943 - Warsaw: February 19, 2011 | Jan Gaj | Kraków: April 28, 1943 - Warsaw: February 19, 2011

French mathematician | Fellow of the American Mathematical Society (2013), Sophie Germain Prize | Science Faculty of Paris | April 28, 1943 - Paris: September 22, 2002

American chemist and Nobel Laureate (born 1941) | William H. Nichols Medal (2006), Nobel Prize in Chemistry (2022), Centenary Prize (1993), Remsen Award

Moscow University's Department of Philosophy | April 28, 1941 - Saint Petersburg: January 4, 1919 | I. K. Liseev | April 28, 1941 - Saint Petersburg: January 4, 1919

German mathematician | University of Regensburg | Karlsruhe: April 28, 1941 - Darmstadt: September 29, 2008 | Jürgen Lehn (Jurgen Lehn) | Karlsruhe: April 28

researcher | Moscow University's Department of Philosophy | Moscow: April 28, 1940 - September 29, 2023 | Alexander Nikiforov | Moscow: April 28, 1940

Soviet and Russian scientist in the field of mechanics (1940-2016) | MSU Faculty of Mechanics and Mathematics | Ivanky: April 28, 1940 - Moscow: July 13, 2016

Estonian chemist | University of Tartu | Tartu: April 28, 1940 - November 25, 2023 | Toomas Tenno | Tartu: April 28, 1940 - November 25, 2023 | University of Tartu

Azerbaijani scientist | Baku State University | Dırnıs: April 28, 1938 - June 20, 2012 | Adil Babayev | Dırnıs: April 28, 1938 - June 20, 2012 | Baku State

New Zealand political scientist (1934–2020) | honorary doctor of the University of Otago (2010), Humanities Aronui Medal (2011), Doctor of Science (2010)

German chemist and author | Ludwigshafen: April 28, 1934 - July 31, 2000 | Dieter Neubauer | Ludwigshafen: April 28, 1934 - July 31, 2000

Russian entrepreneur and researcher (1933–2021) | Russian Federation Presidential Certificate of Gratitude (2012), State Prize of the Russian Federation

pharmacologist (1933-2014) | Gymnasium of Karlovci, University of Belgrade School of Medicine | Parage: April 28, 1933 - Belgrade: May 26, 2014 | Miodrag

Russian scientist | Faculty of Biology and Soils, Moscow State University | Sterlitamak: April 28, 1931 - Moscow: May 20, 2016 | Yunir Urmantsev | Sterlitamak

Canadian chemist, businessman, and art collector (1924–2018) | Gratias Agit (2010), Commander of the Order of the British Empire, honorary doctor of the

German psychoanalyst (1923-2011) | Theodor Heuss Award (1980), Urania Medal (1993), Paracelsus Medal of the German Medical Association (2008), Goethe Plaque of

Ph.D. Gottfried Wilhelm Leibniz Universität Hannover 1950 | Leibniz University Hannover | Hamelin: April 28, 1920 - May 3, 2001 | Günter Bertram (Gunter

Finnish mathematician | University of Helsinki | Helsinki: April 28, 1916 - Helsinki: January 1, 1994 | Olli Lokki | Helsinki: April 28, 1916 - Helsinki: January 1, 1994

German physicist (1906–1999) | Commander's Cross of the Order of Merit of the Federal Republic of Germany | Zittau: April 28, 1906 - August 24, 1999 | Martin

Austrian-American logician, mathematician, and philosopher of mathematics (1906-1978) | National Medal of Science (1974), Foreign Member of the Royal Society

mathematician (1906–1989) | Fellow of the Royal Society (1978), Senior Berwick Prize (1972) | Erdős–Ko–Rado theorem, Rado’s selection principle

Russian physicist (1901-1985) | Order of the Badge of Honour | Moscow State University | Moscow: April 28, 1901 - Novosibirsk: February 1, 1985 | Yuriy Rumer

Dutch astronomer (1900–1992) | honorary doctor of the University of Bordeaux (1961), Gold Medal of the Royal Astronomical Society (1946), Vetlesen Prize

Chinese chemist | Academician of the Chinese Academy of Sciences (1955) | Hubei: April 28, 1899 - February 22, 1963 | Yun Ziqiang | Hubei: April 28, 1899

Hungarian engineer (1897–1947) | Budapest University of Technology and Economics | Zbehy: April 28, 1897 - Budapest: February 26, 1947 | Kálmán Tihanyi

Pontifical Lateran University, Pontifical University of Salamanca | April 28, 1897 - Ljubljana: March 30, 1952 | Pablo León Murciego (Pablo Leon Murciego)

Finnish weapons designer | Memorial medal of the Winter War, Cross of Liberty, 4th Class, Knight of the Order of the White Rose of Finland | Suomi KP/-31

Dutch chemist | Commander of the Order of Orange-Nassau (1959) | Delft University of Technology | Arnhem: April 28, 1889 - Delft: February 3, 1961 | Hein

American inventor (1882-1968) | Eminence: April 28, 1882 - San Bernardino: August 6, 1968 | James William McGhee | Eminence: April 28, 1882 - San Bernardino

Mineralogist | Moscow State University | Osa: April 28, 1877 - Dnipro: June 30, 1946 | Leonid Likarionovich Ivanov | Osa: April 28, 1877 - Dnipro: June 30, 1946

American chemical engineer | Peoria: April 28, 1873 - August 25, 1953 | Alfred Holmes White | Peoria: April 28, 1873 - August 25, 1953

Ukrainian mathematician from Russian empire | Voronoi diagram, Voronoi formula | Imperial St. Petersburg University, Saint Petersburg State University

American physicist | Frederick William University Berlin, Cornell University, Purdue University | Indianapolis: April 28, 1865 - Ithaca: June 5, 1948 | Ernest

Ukrainian and Russian philosopher (1862–1936) | Odesa University, Imperial Novorossiia University | Mariupol: April 28, 1862 - Moscow: February 13, 1936

Polish writer and philosopher (1862–1929) | Warsaw: April 28, 1862 - Warsaw: March 17, 1929 | Antoni Lange (Antoni Wrzesień | Napierski) | Warsaw: April 28

German philosopher (1860–1944) | Besigheim: April 28, 1860 - Stuttgart: February 13, 1944 | Christoph Schrempf | Besigheim: April 28, 1860 - Stuttgart

English engineer, mathematician and inventor (1854-1923) | Hughes Medal (1906) | University of London, University of Cambridge, Girton College | Portsea

Dr. phil. Martin-Luther-Universität Halle-Wittenberg 1875 | Martin Luther University Halle-Wittenberg | Weißenfels: April 28, 1851 - Linden-Limmer: January 10, 1902

American physician, chemist, teacher, toxicologist and medico-legal expert (1846–1905) | Harvard Medical School, Harvard College | Cambridge: April 28, 1846

Czech chemist and university educator (1845–1910) | Jeřice: April 28, 1845 - Vinohrady: December 24, 1910 | Antonín Bělohoubek (Antonin Belohoubek)

Hungarian mathematician (1838-1889) | University of Göttingen | Pest: April 28, 1838 - Budapest: December 26, 1889 | Jenő Hunyady (Jeno Hunyady) | Pest

French mineralogist (1831-1920) | Constantinople: April 28, 1831 - Paris: November 7, 1920 | Félix Pisani (Felix Pisani) | Constantinople: April 28, 1831

Scottish mathematical physicist (1831–1901) | Gunning Victoria Jubilee Prize, honorary degree (1875), Smith's Prize, Keith Medal (1871), Royal Medal (1886)

French inventor (1829–1912) | Officer of the Legion of Honour (1890) | City of Brussels: April 28, 1829 - Saint-Céré: November 23, 1912 | Charles Bourseul

French chemist | Knight of the Legion of Honour | Clamecy: April 28, 1820 - Dornecy: July 26, 1893 | Hippolyte Marié-Davy (Hippolyte Marie-Davy) | Clamecy

Swedish industrialist and inventor (1815-1888) | Jönköpings Kristina församling: April 28, 1815 - Jönköpings Kristina församling: July 17, 1888 | John

April 28, 1812 - January 1, -0442 | Antonio Casares Rodríguez (Antonio Casares Rodriguez) | April 28, 1812 - January 1, -0442

German chemist (1806–1881) | Royal Order of Vasa | Martin Luther University Halle-Wittenberg, University of Jena | Aschersleben: April 28, 1806 - Frankfurt

Australian explorer (1795-1869) | Founder’s Medal (1847) | Harrow School | Bengal: April 28, 1795 - Cheltenham: June 16, 1869 | Charles Sturt | Bengal: April

Russian mathematician, rector of the Imperial University of Moscow. | Order of Saint Stanislaus, 1st class, Order of Saint Anna, 2nd class with crown, Order of

British philanthropist, astronomer, mathematician, antiquarian and barrister (1783-1866) | University of Cambridge, St John's College | April 28, 1783

French mathematician (1765-1843) | Collège des Quatre-Nations | Paris: April 28, 1765 - Paris: May 24, 1843 | Sylvestre François Lacroix (Sylvestre Francois

April 28, 1743 - Mexico City: October 22, 1966 | Pedro Gutiérrez Bueno (Pedro Gutierrez Bueno) | April 28, 1743 - Mexico City: October 22, 1966

French physician and scientist | Paris: April 28, 1726 - Paris: August 13, 1784 | Jean François Clément Morand (Jean Francois Clement Morand)