Template:Selected anniversaries/September 18: Difference between revisions
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||53: Trajan born ... Roman emperor from 98 to 117. Officially declared by the Senate optimus princeps ("the best ruler"), Trajan is remembered as a successful soldier-emperor who presided over the greatest military expansion in Roman history, leading the empire to attain its maximum territorial extent by the time of his death. He is also known for his philanthropic rule, overseeing extensive public building programs and implementing social welfare policies, which earned him his enduring reputation as the second of the Five Good Emperors. Pic: bust. | ||53: Trajan born ... Roman emperor from 98 to 117. Officially declared by the Senate optimus princeps ("the best ruler"), Trajan is remembered as a successful soldier-emperor who presided over the greatest military expansion in Roman history, leading the empire to attain its maximum territorial extent by the time of his death. He is also known for his philanthropic rule, overseeing extensive public building programs and implementing social welfare policies, which earned him his enduring reputation as the second of the Five Good Emperors. Pic: bust. | ||
||1709: Samuel Johnson born ... lexicographer and poet. Pic. | ||1709: Samuel Johnson born ... lexicographer and poet. Pic. | ||
||1752: Adrien-Marie Legendre born ... mathematician and theorist. Pic (striking caricature). | ||1752: Adrien-Marie Legendre born ... mathematician and theorist. Pic (striking caricature). | ||
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||1819: Léon Foucault born ... physicist and academic ... best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope. Pic. | ||1819: Léon Foucault born ... physicist and academic ... best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope. Pic. | ||
||1918: Carl-Gustav Esseen born ... mathematician. His work was in the theory of probability. The Berry–Esseen theorem is named after him. Pic search | ||1918: Carl-Gustav Esseen born ... mathematician. His work was in the theory of probability. The Berry–Esseen theorem is named after him. Pic search. | ||
||1921: Florence Marion Newman Trefethen born ... American codebreaker, historian of operations research, poet, and English professor. Pic daughter's blog, saved local: http://gwynedtrefethen.blogspot.com/2013/12/weekly-report-2013-1227.html | ||1921: Florence Marion Newman Trefethen born ... American codebreaker, historian of operations research, poet, and English professor. Pic daughter's blog, saved local: http://gwynedtrefethen.blogspot.com/2013/12/weekly-report-2013-1227.html | ||
||1924: Anthony Poshepny born ... CIA paramilitary officer in what is now called Special Activities Division (renamed Special Activities Center in 2016). He is best remembered for training the US-funded secret army in Laos during the Vietnam War. Pic search | ||1924: Anthony Poshepny born ... CIA paramilitary officer in what is now called Special Activities Division (renamed Special Activities Center in 2016). He is best remembered for training the US-funded secret army in Laos during the Vietnam War. Pic search. | ||
||1851: First publication of The New-York Daily Times, which later becomes The New York Times. | ||1851: First publication of The New-York Daily Times, which later becomes The New York Times. | ||
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||1908: Victor Amazaspovich Ambartsumian born ... a Soviet Armenian scientist, and one of the founders of theoretical astrophysics. He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellar systems and cosmogony of stars and galaxies, and contributed to mathematical physics. Pic. | ||1908: Victor Amazaspovich Ambartsumian born ... a Soviet Armenian scientist, and one of the founders of theoretical astrophysics. He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellar systems and cosmogony of stars and galaxies, and contributed to mathematical physics. Pic. | ||
||1912: Frank Farmer born ... physicist, and a pioneer in the application of physics to medicine, particularly in relation to the practical aspects of cancer treatment by radiation. Pic search. | |||
||1925: Victor L. Klee, Jr. born ... mathematician specialising in convex sets, functional analysis, analysis of algorithms, optimization, and combinatorics. Pic. | ||1925: Victor L. Klee, Jr. born ... mathematician specialising in convex sets, functional analysis, analysis of algorithms, optimization, and combinatorics. Pic. | ||
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||1934: The USSR is admitted to the League of Nations. | ||1934: The USSR is admitted to the League of Nations. | ||
||1939: Jan Camiel Willems born ... mathematician and theorist. Pic search | ||1939: Jan Camiel Willems born ... mathematician and theorist. Pic search. | ||
||1942: Logician and philosopher Kurt Grelling and his wife arrive at Auschwitz, where they are killed in gas chambers that day or soon thereafter. Pic. | ||1942: Logician and philosopher Kurt Grelling and his wife arrive at Auschwitz, where they are killed in gas chambers that day or soon thereafter. Pic. | ||
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File:Voyager spacecraft diagram.png|link=Voyager 1 (nonfiction)|1977: [[Voyager 1 (nonfiction)|Voyager 1]] takes first photograph of the Earth and the Moon together. | File:Voyager spacecraft diagram.png|link=Voyager 1 (nonfiction)|1977: [[Voyager 1 (nonfiction)|Voyager 1]] takes first photograph of the Earth and the Moon together. | ||
||1977: Paul Bernays dies ... mathematician and philosopher. Pic. | ||1977: Paul Bernays dies ... mathematician and philosopher. Pic. | ||
||1978: Rudolf Nebel dies ... spaceflight advocate active in Germany's amateur rocket group, the ''Verein für Raumschiffahrt'' (VfR – "Spaceflight Society") in the 1930s and in rebuilding German rocketry following World War II. Pic search | ||1978: Rudolf Nebel dies ... spaceflight advocate active in Germany's amateur rocket group, the ''Verein für Raumschiffahrt'' (VfR – "Spaceflight Society") in the 1930s and in rebuilding German rocketry following World War II. Pic search. | ||
||1980: Kurt Alfred Georg Mendelssohn dies ... medical physicist. Pic. | ||1980: Kurt Alfred Georg Mendelssohn dies ... medical physicist. Pic. | ||
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||2014: Richard F. Arenstorf born ... mathematician who discovered a stable orbit between the Earth and the Moon, called an Arenstorf Orbit, which was the basis of the orbit used by the Apollo Program for going to the Moon. Pic. | ||2014: Richard F. Arenstorf born ... mathematician who discovered a stable orbit between the Earth and the Moon, called an Arenstorf Orbit, which was the basis of the orbit used by the Apollo Program for going to the Moon. Pic. | ||
||2016: Wolfhart Zimmermann dies ... theoretical physicist. Pic: http://wwwth.mpp.mpg.de/conf/zimmermann-memorial/ | ||2016: Wolfhart Zimmermann dies ... theoretical physicist. Pic: http://wwwth.mpp.mpg.de/conf/zimmermann-memorial/ | ||
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Latest revision as of 13:01, 7 February 2022
1783: Mathematician and physicist Leonhard Euler dies. He made important and influential discoveries in many branches of mathematics, and introduced much of the modern mathematical terminology and notation, such as the notion of a mathematical function.
1947: The majority of the provisions of the National Security Act, which establishes The National Security Council and the Central Intelligence Agency, come into effect, the day after the Senate confirmed James Forrestal as the first Secretary of Defense.
1967: Physicist, academic, and Nobel Prize laureate John Cockcroft dies. He was instrumental in the development of nuclear power.
1976: Public servant and alleged time-traveller The Custodian tells a funny story about why you can't go in there.
1977: Voyager 1 takes first photograph of the Earth and the Moon together.