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| File:Title page of the Astrolabium of Johannes Engel, printed by Johann Emerich, Venice 1494.jpg|link=Johannes Engel (nonfiction)|1453: Doctor, astronomer, and astrologer [[Johannes Engel (nonfiction)|Johannes Engel]] born. He will publish numerous almanacs, planetary tables, and calendars. | | File:Title page of the Astrolabium of Johannes Engel, printed by Johann Emerich, Venice 1494.jpg|link=Johannes Engel (nonfiction)|1453: Doctor, astronomer, and astrologer [[Johannes Engel (nonfiction)|Johannes Engel]] born. He will publish numerous almanacs, planetary tables, and calendars. |
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| File:Leonardo_da_Vinci_in_flight.jpg|link=Leonardo da Vinci|1478: Artist, inventor, and crime-fighter [[Leonardo da Vinci]] writes a letter to [[Johannes Engel (nonfiction)|Johannes Engel]], suggesting the need for an almanac of [[crimes against astronomical constants]]. | | File:Francesco_Bianchini.png|link=Francesco Bianchini (nonfiction)|1729: Astronomer and philosopher Francesco Bianchini dies. Bianchini was secretary of the Papal commission for the reform of the calendar, working on the method to calculate the astronomically correct date for Easter in a given year. |
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| ||1729: Francesco Bianchini dies ... astronomer and philosopher.
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| ||1759: Pietro Paoli born ... mathematician.
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| File:Signaling by Napoleonic semaphore line.jpg|link=Semaphore telegraph (nonfiction)|1791: Long-distance communication speeds up with the unveiling of a [[Semaphore telegraph (nonfiction)|semaphore telegraph machine]] in Paris. | | File:Signaling by Napoleonic semaphore line.jpg|link=Semaphore telegraph (nonfiction)|1791: Long-distance communication speeds up with the unveiling of a [[Semaphore telegraph (nonfiction)|semaphore telegraph machine]] in Paris. |
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| ||1825: Roberto Cofresí, one of the last successful Caribbean pirates, is defeated in combat and captured by authorities.
| | File:I_Got_Spaces.jpg|link=I Got Spaces|1931: Premiere of '''[[I Got Spaces]]''' by George Gershwin. "I got spaces / I got vectors / I got metrics / Who could ask for anything more?" |
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| ||1829: Karl Gottfried Hagen dies ... chemist.
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| ||1830: Samuel Thomas von Sömmerring dies ... physician, anatomist, and anthropologist. Pic.
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| ||1836: Julius Weingarten born ... mathematician. He made some important contributions to the differential geometry of surfaces, such as the Weingarten equations. Pic.
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| ||1838: Jean Alexander Heinrich Clapier de Colongue born ... marine engineer and founder of a theory of magnetic deviation for magnetic compasses, living and working in Imperial Russia. Pic.
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| ||1838: Viktor von Lang born ... chemist. He is counted among the pioneers and founders of crystal physics.
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| ||1840: Heinrich Wilhelm Matthias Olbers dies ... physician and astronomer.
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| ||1866: George Chandler Whipple born ... civil engineer and an expert in the field of sanitary microbiology. His career extended from 1889 to 1924 and he is best known as a co-founder of the Harvard School of Public Health. Whipple published some of the most important books in the early history of public health and applied microbiology. Pic.
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| ||1878: Wander Johannes de Haas (2 March 1878 – 26 April 1960) was a Dutch physicist and mathematician. He is best known for the Shubnikov–de Haas effect, the de Haas–van Alphen effect and the Einstein–de Haas effect. Pic: https://ro.wikipedia.org/wiki/Wander_Johannes_de_Haas
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| ||1880: John Benjamin Macneill dies ... engineer.
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| ||1880: Alfred James Lotka born ... mathematician, physical chemist, and statistician, famous for his work in population dynamics and energetics. An American biophysicist, Lotka is best known for his proposal of the predator–prey model, developed simultaneously but independently of Vito Volterra. The Lotka–Volterra model is still the basis of many models used in the analysis of population dynamics in ecology. Pic.
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| ||1885: Joseph Alfred Serret dies ... mathematician. He will be known for the Frenet–Serret formulas. Pic.
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| ||1886: Kurt Grelling born ... logician and philosopher. Pic.
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| ||1888: Cornelis Benjamin Biezeno born ... applied mathematician and scientist in engineering mechanics. Pic.
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| ||1894: Alexander Oparin born ... biochemist and academic. ... notable for his theories about the origin of life, and for his book The Origin of Life. He also showed that many food-production processes were based on biocatalysis, and developed the foundations for industrial biochemistry in the USSR. Pic.
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| ||1901: Grete Hermann born ... mathematician and philosopher. Pic.
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| ||1902: Edward Condon born ... physicist and academic.
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| ||1910: Charles Pisot born ... mathematician. He is chiefly recognized as one of the primary investigators of the numerical set associated with his name, the Pisot–Vijayaraghavan numbers. Pic: http://www-history.mcs.st-andrews.ac.uk/PictDisplay/Pisot.html
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| File:Arthur Stanley Eddington.jpg|link=Arthur Eddington (nonfiction)|1911: Astronomer, physicist, and mathematician [[Arthur Eddington (nonfiction)|Arthur Eddington]] builds new type of [[scrying engine]] which detects and prevents [[crimes against mathematical constants]]. | |
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| ||1921: Vitold Belevitch born ... mathematician and electrical engineer of Russian origin who produced some important work in the field of electrical network theory.
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| ||1922: Frances Spence born ... computer programmer.
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| ||1913: Georgy Nikolayevich Flyorov born ... physicist who is known for his discovery of the spontaneous fission and his contribution towards the physics of thermal reactions.
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| ||1927: Kurt Leichtweiss born ... mathematician specializing in convex and differential geometry. Pic.
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| ||1949: Captain James Gallagher lands his B-50 Superfortress Lucky Lady II in Fort Worth, Texas after completing the first non-stop around-the-world airplane flight in 94 hours and one minute.
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| ||1962: Charles Jean de la Vallée-Poussin dies ... mathematician and academic.
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| ||Henrietta Bolt
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| File:Pioneer 10 construction.jpg|link=Pioneer 10 (nonfiction)|1972: The ''[[Pioneer 10 (nonfiction)|Pioneer 10]]'' space probe is launched from Cape Canaveral, Florida with a mission to explore the outer planets. | | File:Pioneer 10 construction.jpg|link=Pioneer 10 (nonfiction)|1972: The ''[[Pioneer 10 (nonfiction)|Pioneer 10]]'' space probe is launched from Cape Canaveral, Florida with a mission to explore the outer planets. |
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| ||1985: Carlos Marcello dies ... gangster. Pic.
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| ||1995: Researchers at Fermilab announce the discovery of the top quark.
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| File:Jordan Carson Mark.gif|link=J. Carson Mark (nonfiction)|1997: Mathematician [[J. Carson Mark (nonfiction)|Jordan Carson Mark]] dies. He oversaw the development of nuclear weapons for the US military, including the hydrogen bomb in the 1950s. | | File:Jordan Carson Mark.gif|link=J. Carson Mark (nonfiction)|1997: Mathematician [[J. Carson Mark (nonfiction)|Jordan Carson Mark]] dies. He oversaw the development of nuclear weapons for the US military, including the hydrogen bomb in the 1950s. |
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| ||1998: Data sent from the Galileo spacecraft indicates that Jupiter's moon Europa has a liquid ocean under a thick crust of ice.
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| File:Niles Cartouchian interrogates Fugitive Rubies.jpg|link=Niles Cartouchian|2017: Famed gem detective [[Niles Cartouchian]] captures supervillain [[Fugitive Rubies]].
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| ||2017: The elements Moscovium, Tennessine, and Oganesson were officially added to the periodic table at a conference in Moscow, Russia
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