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| ||1617: David Fabricius dies ... astronomer and theologian. Pic search dubious: https://www.google.com/search?q=david+fabricius+astronomer
| | File:Gerard_van_Swieten_Kaiserbild.jpg|link=Gerard van Swieten (nonfiction)|1700: Physician [[Gerard van Swieten (nonfiction)|Gerard van Swieten]] born. |
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| ||1700: Gerard van Swieten born ... physician ... Vampires. Pic.
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| File:Antoine Lavoisier.jpg|link=Antoine Lavoisier (nonfiction)|1794: Chemist, aristocrat, and crime-fighter [[Antoine Lavoisier (nonfiction)|Antoine Lavoisier]] publishes his groundbreaking treatise on [[crimes against chemical constants]], introducing nomenclature and terminology used to this day. | |
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| File:Supplice de 9 émigrés Octobre 1793.jpg|link=French Revolution (nonfiction)|1794: [[French Revolution (nonfiction)|French Revolution]]: Robespierre introduces the Cult of the Supreme Being in the National Convention as the new state religion of the French First Republic. | | File:Supplice de 9 émigrés Octobre 1793.jpg|link=French Revolution (nonfiction)|1794: [[French Revolution (nonfiction)|French Revolution]]: Robespierre introduces the Cult of the Supreme Being in the National Convention as the new state religion of the French First Republic. |
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| ||1819: Otto Wilhelm von Struve born ... astronomer. Together with his father, Friedrich Georg Wilhelm von Struve, Otto Wilhelm von Struve is considered a prominent 19th century astronomer who headed the Pulkovo Observatory between 1862 and 1889 and was a leading member of the Russian Academy of Sciences. Pic.
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| ||1825: Joseph Thomas Clover baptized ... doctor and pioneer of anaesthesia. He invented a variety of pieces of apparatus to deliver anaesthetics including ether and chloroform safely and controllably. By 1871 he had administered anaesthetics 13,000 times without a fatality.
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| ||1831: Johann Friedrich von Eschscholtz dies ... physician and botanist ... traveller. Pic.
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| File:Carl Gottfried Neumann.jpg|link=Carl Gottfried Neumann (nonfiction)|1832: Mathematician [[Carl Gottfried Neumann (nonfiction)|Carl Gottfried Neumann]] born. He will study physics with his father, and later work as a mathematician, dealing almost exclusively with problems arising from physics.
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| ||1842: Pietro Abbati Marescotti dies ... mathematician. No pic, none.
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| ||1851: Carl Gustav Axel von Harnack born ... mathematician who contributed to potential theory. Harnack's inequality applied to harmonic functions. He also worked on the real algebraic geometry of plane curves, proving Harnack's curve theorem for real plane algebraic curves.
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| ||1854: Giuseppe Veronese dies ... mathematician.
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| File:Oliver Blackburn Shallenberger.jpg|link=Oliver B. Shallenberger (nonfiction)|1860: Electrical engineer and inventor [[Oliver B. Shallenberger (nonfiction)|Oliver Blackburn Shallenberger]] born. He will invent the first successful alternating current electrical meter, which will be critical to the general acceptance of AC power. | | File:Oliver Blackburn Shallenberger.jpg|link=Oliver B. Shallenberger (nonfiction)|1860: Electrical engineer and inventor [[Oliver B. Shallenberger (nonfiction)|Oliver Blackburn Shallenberger]] born. He will invent the first successful alternating current electrical meter, which will be critical to the general acceptance of AC power. |
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| ||1880: Oskar Perron born ... mathematician. He made numerous contributions to differential equations and partial differential equations, including the Perron method to solve the Dirichlet problem for elliptic partial differential equations. Pic.
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| ||1890: James Nasmyth dies ... engineer who invented the steam-hammer (24 Nov 1839) which was patented in Britain on 9 Jun 1842 (No. 9382). In his early career, Nasmyth improved the design of machine tools. Power hammers had previously been driven by steam, but Nasmyth designed his steam-hammer with more precision and control. The steam functioned to lift the hammer which then dropped by gravity, and repeated the cycle. Nasmyth adapted the idea to make a steam pile-driver. With later improvements, the steam-hammer enabled forging very large guns for the British navy. He became wealthy and in 1856 was able to retire at the age of 48. After retirement, Nasmyth pursued his hobby of astronomy, in which he published minor works. Pic.
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| File:Alexander Stepanovich Popov.jpg|link=Alexander Stepanovich Popov (nonfiction)|1895: Russian physicist [[Alexander Stepanovich Popov (nonfiction)|Alexander Stepanovich Popov]] demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector — a primitive radio receiver. | | File:Alexander Stepanovich Popov.jpg|link=Alexander Stepanovich Popov (nonfiction)|1895: Russian physicist [[Alexander Stepanovich Popov (nonfiction)|Alexander Stepanovich Popov]] demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector — a primitive radio receiver. |
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| File:Havelock.jpg|link=John Havelock|1895: Mathematician and alleged immortal [[John Havelock]] purchases signed first edition of ''[[Time machine (nonfiction)|The Time Machine]]'', telling author H. G. Wells that the book "is an instant classic."
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| File:The Time Machine by H.G. Wells (1895).jpg|link=Time machine (nonfiction)|1895: First publication of ''[[Time machine (nonfiction)|The Time Machine]]'' by H. G. Wells. | | File:The Time Machine by H.G. Wells (1895).jpg|link=Time machine (nonfiction)|1895: First publication of ''[[Time machine (nonfiction)|The Time Machine]]'' by H. G. Wells. |
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| ||1896: Pavel Sergeyevich Alexandrov born ... Soviet mathematician. He wrote about three hundred papers, making important contributions to set theory and topology.
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| File:H. H. Holmes.jpg|link=H. H. Holmes (nonfiction)|1896: Serial killer [[H. H. Holmes (nonfiction)|H. H. Holmes]] is executed for the murder of his friend and accomplice Benjamin Pitezel.
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| ||1904: Gustav Hedlund born ... mathematician, was one of the founders of symbolic and topological dynamics. Pic.
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| ||1909: Edwin H. Land born ... scientist and businessman, co-founded the Polaroid Corporation. Pic.
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| ||1911: Theodor Schneider born ... mathematician, best known for providing proof of what is now known as the Gelfond–Schneider theorem. Schneider studied from 1929 to 34 in Frankfurt; he solved Hilbert's 7th problem in his PhD thesis, which then came to be known as the Gelfond–Schneider theorem. Pic.
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| ||1913: Simon Ramo born ... physicist and engineer.
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| ||1914: Johannes de Groot born ... mathematician, the leading Dutch topologist for more than two decades following World War II. Pic.
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| ||1915: World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many formerly pro-Germans in the United States against the German Empire
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| ||1925: Lauri Vaska born ... chemist and academic.
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| ||1928: The Jinan incident begins with Japanese forces killing the Chinese negotiating team in Jinan, China, and going on to kill over 2,000 Chinese civilians in the following days.
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| ||1944: Charles Stuart Ballantine dies ... mathematical physicist and inventor. He discovered the "antenna effect" in coil-type systems and invented the capacity compensator for its control. In 1923 he was awarded the John Tyndall Fellowship in physics at Harvard University. At this time he developed the principle of negative feedback to stabilize and reduce distortion in transmission circuits, modulators, amplifiers, and detectors. Mr. Ballantine engaged in extensive studies of detection at high signal levels, fluctuation noise in radio receivers and tubes, development of technique for sound measurements of loudspeakers and receivers, microphone calibration, and broadcast receiver design. He invented a method of stabilizing radio-frequency amplifiers by means of a Wheatstone-bridge circuit, and in 1929 made important contributions to the design and use of vacuum tubes for radio receiving sets, later improving condenser microphones in such a way as to permit increased fidelity in the transmission of sound programs. One of the most widely known of his many contributions to radio was his invention of the first "throat microphone" to pick up voice sounds directly from the larynx, a device of major importance to aviators, later widely used by the Army Air Force. Pic: https://ethw.org/Charles_Stuart_Ballantine
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| ||1952: The concept of the integrated circuit, the basis for all modern computers, is first published by Geoffrey Dummer.
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| File:Egon Rhodomunde.jpg|link=Egon Rhodomunde|1960: Film director and arms dealer [[Egon Rhodomunde]] raises funds for new film about the American U-2 pilot [[Francis Gary Powers (nonfiction)|Gary Powers]].
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| File:Gary Powers.jpg|link=Francis Gary Powers (nonfiction)|1960: Cold War: U-2 Crisis of 1960: Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot [[Francis Gary Powers (nonfiction)|Gary Powers]]. | | File:Gary Powers.jpg|link=Francis Gary Powers (nonfiction)|1960: Cold War: U-2 Crisis of 1960: Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot [[Francis Gary Powers (nonfiction)|Gary Powers]]. |
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| File:Dard Hunter, Glyph Warden detail.jpg|link=Niles Cartouchian (1900s)|1960: Actor-cryptographer [[Niles Cartouchian (1900s)|Niles Cartouchian]] meets privately with Nikita Khrushchev and [[Francis Gary Powers (nonfiction)|Gary Powers]] in a successful attempt to avoid nuclear war.
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| ||1973: Joseph Ehrenfried Hofmann dies ... historian of mathematics, known for his research on Gottfried Wilhelm Leibniz. Pic.
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| ||1975: Hermann Lorenz Künneth dies ... mathematician and renowned algebraic topologist, best known for his contribution to what is now known as the Künneth theorem.
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| ||1992: The Space Shuttle ''Endeavour'' is launched on its first mission, STS-49.
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| ||1994: After the first Earth transfer orbit, a malfunction aboard the unmanned spacecraft ''Clementine'' caused one of the attitude control thrusters to fire for 11 minutes, using up its fuel supply and causing ''Clementine'' to spin at about 80 rpm (see NASA Clementine Project Info). Under these conditions, the asteroid flyby could not yield useful results, so the spacecraft was put into a geocentric orbit passing through the Van Allen radiation belts to test the various components on board.
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| ||1994: Edvard Munch's iconic painting ''The Scream'' is recovered undamaged after being stolen from the National Gallery of Norway in February.
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| ||1998: Allan McLeod Cormack dies ... physicist and academic, Nobel Prize laureate. Pic search good: https://www.google.com/search?q=allan+mcleod+cormack
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| ||2007: Emma Lehmer dies ... mathematician known for her work on reciprocity laws in algebraic number theory. She preferred to deal with complex number fields and integers, rather than the more abstract aspects of the theory. Pic: https://www.berkeley.edu/news/media/releases/2007/05/11_emmalehmer.shtml
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| ||2011: Willard Boyle dies ... physicist and academic, Nobel Prize laureate ... pioneer in the field of laser technology and co-inventor of the charge-coupled device. Pic.
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| ||2014: Colin Pillinger dies ... astronomer, chemist, and academic. Pic.
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| ||2015: Samuel Edwards dies ... physicist. Pic.
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| ||2017: Elon Lages Lima dies ... mathematician whose research concerned differential topology, algebraic topology, and differential geometry. Lima was an influential figure in the development of mathematics in Brazil. Pic.
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| |File:Green Spiral.jpg|link=Green Spiral (nonfiction)|2016: Steganographic analysis of ''[[Green Spiral (nonfiction)|Green Spiral]]'' unexpectedly reveals ...
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| File:Crimson Blossom 2.jpg|link=Crimson Blossom 2 (nonfiction)|2016: ''[[Crimson Blossom 2 (nonfiction)|Crimson Blossom 2]]'' voted Picture of the Day by the citizens of [[New Minneapolis, Canada]].
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| ||2017: Wu Wenjun dies ... mathematician and academician at the Chinese Academy of Sciences (CAS), best known for the Wu's method of characteristic set. Pic: https://www.quantumcalculus.org/wenjun-wu-1919-2017/
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