António dos Santos Viegas (Antonio dos Santos Viegas)

American meteorologist | Central Michigan University, Florida State University, Columbia University | New York City: April 7, 1987 - Oxford: January 14, 1753

Russian scientist, entrepreneur and deputy minister of education | Bauman Moscow State Technical University | Gornyak: April 7, 1983 - January 1, 1905 | Marina

Azerbaijani scientist | Yukhary Salahly: April 7, 1979 - Zaragoza: January 1, 1918 | Yusif Alıyev (Yusif Aliyev) | Yukhary Salahly: April 7, 1979 - Zaragoza

South Korean chemist | Scripps Research, New York University | Seoul: April 7, 1978 - Jerusalem: January 1, 1141 | YoungSoo Kim | Seoul: April 7, 1978

Ukrainian military officer | Order of Danylo Halytsky | Lviv Polytechnic, National Defense University of Ukraine | Strilkiv: April 7, 1974 - Donetsk: August 10, 2012

French Philosopher | Jean Moulin University - Lyon 3 | April 7, 1972 - August 31, 1913 | Hicham-Stéphane Afeissa (Hicham-Stephane Afeissa) | April 7, 1972

French philosopher | Grand prix de philosophie (2016) | Béziers: April 7, 1971 - Stuer: April 1, 1897 | Jean Vioulac | Béziers: April 7, 1971 - Stuer: April 1, 1897

Norwegian physicist | Björkén Prize (2018) | Uppsala University | Svolvær: April 7, 1970 - Roxbury: January 5, 1924 | Maria Strømme (Maria Stromme)

electric helicopter pilot | April 7, 1968 - Zamora: February 9, 2007 | Pascal Chretien | April 7, 1968 - Zamora: February 9, 2007

Austrian scientist | The Evolution of Cooperation | University of Vienna | Vienna: April 7, 1965 - Heidelberg: February 21, 1889 | Martin A. Nowak | Vienna

Professor of Design Engineering | University of Hull | Falkirk: April 7, 1963 - Tehran: June 30, 1930 | Ian Gibson | Falkirk: April 7, 1963 - Tehran: June 30

innovator from India | Padma Shri in science & engineering (2019) | Jorhat Engineering College | North Lakhimpur: April 7, 1962 - Budapest: March 24, 1945

American mathematician | MSU Faculty of Mechanics and Mathematics | April 7, 1960 - Graz: June 7, 1988 | Alexander Goncharov | April 7, 1960 - Graz: June 7

Dutch physicist | EPS Europhysics Prize (2002), ISNSCE Nanoscience Prize (2012), Fellow of the American Physical Society, Akademiehoogleraren Prize, honorary

Italian engineer and physicist (1959-) | Emily M. Gray Award (2014) | University of Genoa | Genoa: April 7, 1959 - Alexandria: December 8, 1877 | Alberto

scientist at Microsoft Research Cambridge and Professor of Computer Science at the University of Edinburgh | Fellow of the Royal Academy of Engineering, Fellow

Swiss composer, mathematician, and statistician | Fellow of the Institute of Mathematical Statistics (2022) | ETH Zurich | Prague: April 7, 1959 - Wrocław

researcher, ORCID id # 0000-0002-4463-3454 | Grenoble Institute of Technology, Arts et Métiers ParisTech | Barbezieux: April 7, 1957 - Bern: May 29, 1922

American mathematician (1955-2014) | Fellow of the American Mathematical Society (2014) | Severna Park High School, University of California, Berkeley

Yemeni researcher and an international lecturer in Management Science | University of Science and Technology in Yemen | Sanaa: April 7, 1955 - Moscow: February 16, 1904

British Buddhist philosopher | Scotland: April 7, 1953 - Falu Kristine church parish: December 8, 1818 | Stephen Batchelor | Scotland: April 7, 1953 - Falu

Soviet and Russian physicist | Ministry of Education and Science of the Russian Federation, Order "For Merit to the Fatherland", 4th class, Order "For Merit to

Romanian engineer, professor and politician | Knight of the Order of the Star of Romania, honorary doctor of the Valahia University of Târgoviște (2010)

American libertarian philosopher and intellectual historian | University of California, Los Angeles | April 7, 1948 - Athens: January 11, 1929 | David Gordon

Chilean scientist | University of Chile, Internado Nacional Barros Arana | Los Ángeles: April 7, 1948 - Santiago: October 25, 2013 | Luis Núñez Vergara

American electrical engineer | IEEE Medal of Honor (1996), Grace Murray Hopper Award (1980), Computer History Museum fellow (2008), EFF Award (1996), National

Japanese theoretical physicist (1944-) | High Energy and Particle Physics Prize (2007), Nobel Prize in Physics (2008), Person of Cultural Merit (2001), Sakurai

Russian mathematician | Dolgachev surface | Moscow State University | Moscow: April 7, 1944 - Orange: March 10, 1921 | Igor Dolgachev | Moscow: April 7, 1944

Indian optical physicist | Padma Shri in science & engineering | Indian Institute of Technology Delhi | April 7, 1943 - Karachi: March 4, 1978 | Rajpal Singh

American physicist, information theorist and IBM Research fellow | Fellow of the American Physical Society, Wolf Prize in Physics (2018), Harvey Prize (2008)

American metallurgical engineer | honorary doctor of the Gdańsk University of Technology (2010) | Pennsylvania State University, Colorado School of Mines

Russian scientist | Russian government prize for science and technology, Medal "In Commemoration of the 850th Anniversary of Moscow", Medal "Veteran of

Finnish nuclear physicist and professor emeritus of nuclear physics (born 1939) | University of Helsinki (1969), University of Helsinki (1964) | Helsinki

American scientist | University of Florida | Camagüey: April 7, 1938 - Sofia: April 15, 1919 | Nils J. Diaz | Camagüey: April 7, 1938 - Sofia: April 15, 1919

American mathematician | Fellow of the American Mathematical Society (2013) | University of California, Berkeley, University of Notre Dame | April 7, 1938

Dutch chemist | Claude S. Hudson Award in Carbohydrate Chemistry (1994), Fellow of the American Association for the Advancement of Science (2017), honorary

Mexican architect, archaeologist, and mathematician | National Autonomous University of Mexico | Mexico City: April 7, 1935 - June 29, 1982 | Graciela Salicrup

Iranian philosopher, theologian and Islamic scholar (born 1933) | Gittler Prize (2010) | Peddie School, Harvard University, Massachusetts Institute of Technology

American writer, editor, and professor (1931–1989) | National Book Award (1972), Guggenheim Fellowship (1966) | University of Houston, University at Buffalo

British mathematician (1923-2010) | honorary doctor of the Autonomous University of Barcelona (1989) | Eckmann–Hilton duality, Eckmann–Hilton argument | St

Turkish physicist (1921–1992) | Commendatore (1984), Fellow of the American Physical Society, Wigner Medal (1986), J. Robert Oppenheimer Memorial Prize (1977)

Argentine physicist (1920-2018) | University of Buenos Aires | Gualeguay: April 7, 1920 - Córdoba: June 18, 2018 | Alberto Maiztegui | Gualeguay: April 7

Polish chemist (1919-1998) | Polish Cultural Merit Order, Officer of the Order of Polonia Restituta | Warsaw: April 7, 1919 - Warsaw: July 16, 1998 | Zbigniew

geophysicist, developer of ground-penetrating radar (1918-2012) | ground-penetrating radar | Pennsylvania State University, University of Utah | Afton: April

doctor | State Sports Badge | Gymnasium in Brody, Danylo Halytsky Lviv National Medical University | Ivanivka: April 7, 1917 - Lviv: May 3, 1987 | Oleh

German physicists (1914-2017) | Konrad Zuse Medal (1987), Officer's Cross of the Order of Merit of the Federal Republic of Germany (2015), Bavarian Maximilian

Austrian educationist and philosopher (1910–1995) | Leibnitz: April 7, 1910 - Salzburg: January 8, 1995 | Karl Wolf | Leibnitz: April 7, 1910 - Salzburg

Japanese physicist | Order of the Rising Sun, 2nd class | Kyoto University | Seika: April 7, 1904 - Sakyō-ku: July 8, 1992 | Kiichi Kimura | Seika: April 7

German physicist (1904–2001) | Officer's Cross of the Order of Merit of the Federal Republic of Germany | Berlin: April 7, 1904 - September 6, 2001 | Werner

American organic chemist (1899–1977) | James Flack Norris Award for Outstanding Achievement in the Teaching of Chemistry (1959), William H. Nichols Medal

Czech physician and university teacher (1892-1959) | Charles University, German University in Prague Medical School | Warsaw: April 7, 1892 - Germany: January 1, 1959

German businessman (1887–1968) | Golden Leibniz Medal (1942), Wehrwirtschaftsführer | University of Giessen, Heidelberg University | Darmstadt: April 7

Russian philosopher (1879–1937) | Imperial University of St. Vladimir | Kyiv: April 7, 1879 - Kolpashevo: November 16, 1937 | Gustav Shpet | Kyiv: April 7

German mathematician, historian of mathematics and historian (1877–1925) | Technical University of Munich | Bittelschieß: April 7, 1877 - Frankfurt: December 6, 1925

Russian physicist (1876-1940) | Faculty of Physics and Mathematics of the Saint Petersburg University, Imperial St. Petersburg University | Saint Petersburg

Dutch chemist and lawyer | University of Groningen | Beilen: April 7, 1875 - The Hague: May 7, 1963 | Jan Alingh Prins (1875-1963) | Beilen: April 7, 1875

Polish physicist | Gold Cross of Merit, Commander with Star of the Order of Polonia Restituta, Grand Cross of the Order of Polonia Restituta, Commander of the

German anarchist, editor (1870-1919) | Skepticism and Mysticism, Revolution, For Socialism, Preacher of Death, Friedrich Hölderlin in seinen Gedichten, Arnold

Japanese scientist (1868-1943) | Gifu Prefecture: April 7, 1868 - March 18, 1943 | Kurata Morishima | Gifu Prefecture: April 7, 1868 - March 18, 1943

Portuguese writer (1858-1918) | Rio Frio: April 7, 1858 - Lisbon: December 21, 1918 | Manuel António Ferreira Deusdado (Manuel Antonio Ferreira Deusdado)

owner of a garden in tanjong pagar | Singapore Women's Hall of Fame | Singapore: April 7, 1854 - Singapore: July 2, 1899 | Agnes Joaquim | Singapore: April 7

American businessman | Ludlow: April 7, 1847 - Evanston: January 16, 1919 | Edward Kirk Warren | Ludlow: April 7, 1847 - Evanston: January 16, 1919

British philosopher (1836-1882) | Balliol College | West Yorkshire: April 7, 1836 - Oxford: March 26, 1882 | Thomas Hill Green | West Yorkshire: April 7, 1836

German mathematician and economist (1832-1918) | Leibniz University Hannover | Hanover: April 7, 1832 - Hanover: May 14, 1918 | Wilhelm Launhardt - Carl

Hungarian mathematician (1826–1882) | Szeged: April 7, 1826 - Budapest: June 29, 1882 | János Ármin Vész (Janos Armin Vesz) | Szeged: April 7, 1826

French inventor and solar power pioneer (1825–1912) | Knight of the Legion of Honour | University of Burgundy | Semur-en-Auxois: April 7, 1825 - Paris: October 4, 1912

Austrian chemist (1825–1875) | University of Jena | Liberec: April 7, 1825 - Vienna: October 7, 1875 | Heinrich Hlasiwetz | Liberec: April 7, 1825 - Vienna

French mathematician (1823-1886) | Poncelet Prize (1884) | Lycée Malherbe, École Normale Supérieure, Collège-lycée Jacques-Decour, University of Paris

Hungarian military officer, politician (1820–1892) | honorary citizen of Szeged (1861) | Piarist High School, Timișoara | Timișoara: April 7, 1820

Italian chemist and patriot (1817-1881) | Vignola: April 7, 1817 - Vignola: August 13, 1881 | Francesco Selmi | Vignola: April 7, 1817 - Vignola: August 13, 1881

Albanian astronomer, mathematician, rector and philosopher (1811–1881) | University of Paris | Markat: April 7, 1811 - Istanbul: July 3, 1881 | Hasan Tahsini

Czech poet, philosopher, lexicographer, publicist, religion writer, educator, publicist, translator, writer, science writer and roman catholic priest (1808-1882)

French writer and suffragist (1803-1844) | Peregrinations of a Pariah | Paris: April 7, 1803 - Bordeaux: November 14, 1844 | Flora Tristan - Flora Célestine

French philosopher and political economist (1797-1871) | Concours général | Paris: April 7, 1797 - Paris: April 12, 1871 | Pierre Leroux - Pierre-Henri

French utopian socialist and philosopher | phalanstère | Besançon: April 7, 1772 - Paris: October 10, 1837 | Charles Fourier - François Marie Charles

Scottish engineer (1767-1830) | Torphichen: April 7, 1767 - Helensburgh: March 14, 1830 | Henry Bell | Torphichen: April 7, 1767 - Helensburgh: March 14, 1830

British philosopher | Fellow of the Royal Society of Edinburgh | University of St Andrews, Royal High School, University of Edinburgh | Edinburgh: April 7

Russian sculptor, scientist and military engineer (1693-1756) | Moscow: April 7, 1680 - Saint Petersburg: April 27, 1756 | Andrey Nartov | Moscow: April 7

Italian poet and philosopher (1668-1740) | University of Catania | Modica: April 7, 1668 - Modica: February 7, 1740 | Tommaso Campailla (Andremone | Serpilla

Danish scientist (1626-1690) | Ribe Katedralskole, University of Copenhagen | Nørre Bork: April 7, 1626 - Copenhagen: October 13, 1690 | Ole Borch | Nørre

Portuguese architect | 's-Hertogenbosch: April 7, 1602 - Olivença: June 20, 1648 | Cosmander | 's-Hertogenbosch: April 7, 1602 - Olivença: June 20, 1648

April 7, 1516 - Zwickau: August 9, 1864 | Nicolas Biese | April 7, 1516 - Zwickau: August 9, 1864

Roman Catholic saint (1515-1582) | The Interior Castle | Ávila: April 7, 1515 - Monastery of the Anunciación: October 15, 1582 | Teresa of Ávila - Teresa