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| File:Nikolaus Kopernikus.jpg|link=Nicolaus Copernicus (nonfiction)|1473: Mathematician and astronomer [[Nicolaus Copernicus (nonfiction)|Nicolaus Copernicus]] born. He will formulate a model of the universe that places the Sun rather than the Earth at the center of the universe. | | File:Nikolaus Kopernikus.jpg|link=Nicolaus Copernicus (nonfiction)|1473: Mathematician and astronomer [[Nicolaus Copernicus (nonfiction)|Nicolaus Copernicus]] born. He will formulate a model of the universe that places the Sun rather than the Earth at the center of the universe. |
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| ||1553 – Erasmus Reinhold, German astronomer and mathematician (b. 1511) | | File:Galileo E pur si muove.jpg|link=Galileo Galilei (nonfiction)|1616: The Inquisition asked a commission of theologians, known as qualifiers, about the propositions of the heliocentric view of the universe after Nicollo Lorin had accused [[Galileo Galilei (nonfiction)|Galileo Galilei]] of heretical remarks in a letter to his former student, Benedetto Castelli. |
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| ||1519 – Froben Christoph of Zimmern, Author of the Zimmern Chronicle (d. 1566) | | File:Alexander Andreevich Samarskii.jpg|link=Alexander Andreevich Samarskii (nonfiction)|1919: Mathematician and academic [[Alexander Andreevich Samarskii (nonfiction)|Alexander Andreevich Samarskii]] born. Samarskii will contribute to applied mathematics, numerical analysis, mathematical modeling, and finite difference methods. |
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| ||1526 – Carolus Clusius, Flemish botanist and academic (d. 1609) | | File:Alan Turing (1930s).jpg|link=Alan Turing (nonfiction)|1946: Mathematician and academic [[Alan Turing (nonfiction)|Alan Turing]] presents the "Proposal for the Development in the Mathematics Division of an Automatic Computing Engine (ACE) to a meeting of the Executive Committee of the National Physical Laboratory (NPL); the proposal will be approved at a second meeting held a month later. |
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| ||1553 – Erasmus Reinhold, German astronomer and mathematician (b. 1511)
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| File:Huaynaputina.jpg|link=Huaynaputina (nonfiction)|1600: The [[Huaynaputina (nonfiction)|Peruvian stratovolcano Huaynaputina]] explodes in the most violent eruption in the recorded history of South America.
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| ||1660 – Friedrich Hoffmann, German physician and chemist (d. 1742)
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| ||Sir William Fairbairn, 1st Baronet of Ardwick (b. 19 February 1789) was a Scottish civil engineer, structural engineer and shipbuilder.
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| File:Jean Charles Borda.jpg|link=Jean-Charles de Borda (nonfiction)|1799: Mathematician, physicist, and sailor [[Jean-Charles de Borda (nonfiction)|Jean-Charles de Borda]] dies. He contributed to the development of the metric system, constructing a platinum standard meter, the basis of metric distance measurement.
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| ||1804 – Carl von Rokitansky, German physician, pathologist, and philosopher (d. 1878)
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| ||1807 – Former Vice President of the United States Aaron Burr is arrested for treason in Wakefield, Alabama and confined to Fort Stoddert.
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| ||1859 – Svante Arrhenius, Swedish physicist and chemist, Nobel Prize laureate (d. 1927)
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| ||Axel Thue (b. 19 February 1863), was a Norwegian mathematician, known for highly original work in diophantine approximation, and combinatorics. He stated in 1914 the so-called word problem for semigroups or Thue problem, closely related to the halting problem.
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| ||1878 – Thomas Edison patents the phonograph.
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| File:Karl Weierstrass.jpg|link=Karl Weierstrass (nonfiction)|1897: Mathematician and academic [[Karl Weierstrass (nonfiction)|Karl Weierstrass]] dies. He will be cited as the "father of modern analysis".
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| ||Fritz Joachim Weyl (b. February 19, 1915) was born in Zurich, Switzerland. Today Weyl is regarded as a renowned mathematician.
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| ||1916 – Ernst Mach, Austrian-Czech physicist and philosopher (b. 1838)
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| ||Joseph Valentin Boussinesq (d. 19 February 1929) was a French mathematician and physicist who made significant contributions to the theory of hydrodynamics, vibration, light, and heat.
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| ||Edmund Georg Hermann Landau (d. 19 February 1938) was a German born mathematician who worked in the fields of number theory and complex analysis.
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| ||1942 – World War II: United States President Franklin D. Roosevelt signs executive order 9066, allowing the United States military to relocate Japanese Americans to internment camps.
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| ||1942 – World War II: Nearly 250 Japanese warplanes attack the northern Australian city of Darwin, killing 243 people.
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| ||1946 – Karen Silkwood, American technician and activist (d. 1974)
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| ||1949 – Ezra Pound is awarded the first Bollingen Prize in poetry by the Bollingen Foundation and Yale University.
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| ||File:Eisenhower in the Oval Office February 1956.jpg|link=Transdimensional corporation|1958: U.S. President Dwight D. Eisenhower delivers a televised address to the nation, in which he warns against the accumulation of power by [[transdimensional corporations]].
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| File:Palomares H-Bomb airships.jpg|link=Carnivorous dirigibles|1959: [[Carnivorous dirigibles]] spontaneously generate [[Extract of Radium]].
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| ||1960 – China successfully launches the T-7, its first sounding rocket.
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| ||1976 – Executive Order 9066, which led to the relocation of Japanese Americans to internment camps, is rescinded by President Gerald Ford's Proclamation 4417.
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| ||1988 – André Frédéric Cournand, French-American physician and physiologist, Nobel Prize laureate (b. 1895)
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| ||Bernard Taub Feld (d. February 19, 1993) was a professor of physics at the Massachusetts Institute of Technology. He helped develop the atomic bomb, and later led an international movement among scientists to banish nuclear weapons.
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| ||2002 – NASA's Mars Odyssey space probe begins to map the surface of Mars using its thermal emission imaging system.
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| ||2012 – Ruth Barcan Marcus, American philosopher and logician (b. 1921)
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| ||2013 – Robert Coleman Richardson, American physicist and academic, Nobel Prize laureate (b. 1937)
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| ||2014 – Valeri Kubasov, Russian engineer and astronaut (b. 1935)
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| File:Umberto Eco 1984.jpg|link=Umberto Eco (nonfiction)|2016: Novelist, literary critic, and philosopher [[Umberto Eco (nonfiction)|Umberto Eco]] dies. He cited James Joyce and Jorge Luis Borges as the two modern authors who have influenced his work the most.
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| File:Woodward and Burroughs distill Extract of Radium.jpg|link=Extract of Radium|2017: [[Extract of Radium]] sponsors re-enactment of the [[Huaynaputina (nonfiction)|Peruvian stratovolcano Huaynaputina]].
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| File:Igor Shafarevich.jpg|link=Igor Shafarevich (nonfiction)|2017: Mathematician and dissident [[Igor Shafarevich (nonfiction)|Igor Shafarevich]] dies. He made fundamental contributions to algebraic number theory, algebraic geometry, and arithmetic algebraic geometry.
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| </gallery> | | </gallery> |
