Template:Selected anniversaries/October 21: Difference between revisions

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||1096 – People's Crusade: A Seljuk Turkish army successfully fight off the People's Army of the West.
||1096: People's Crusade: A Seljuk Turkish army successfully fight off the People's Army of the West.


||1505 – Paul Scriptoris, German mathematician and educator (b. 1460)
||1505: Paul Scriptoris, German mathematician and educator. He was a successful teacher of the natural sciences, awakening interest in this subject in many of his students.  No DOB. No pic online.


||1520 – Ferdinand Magellan discovers a strait now known as Strait of Magellan.
||1520: Ferdinand Magellan discovers a strait now known as Strait of Magellan. Pic.


||1558 – Julius Caesar Scaliger, Italian physician and scholar (b. 1484)
||1558: Julius Caesar Scaliger dies ... physician and scholar. Pic.


File:Nicolaus I Bernoulli.jpg|link=Nicolaus I Bernoulli (nonfiction)|1687: Mathematician and theorist [[Nicolaus I Bernoulli (nonfiction)|Nicolaus I Bernoulli]] born. He will introduce a successful resolution to the [[St. Petersburg paradox (nonfiction)|St. Petersburg paradox]].
File:Nicolaus I Bernoulli.jpg|link=Nicolaus I Bernoulli (nonfiction)|1687: Mathematician and theorist [[Nicolaus I Bernoulli (nonfiction)|Nicolaus I Bernoulli]] born. Bernoulli will introduce a successful resolution to the [[St. Petersburg paradox (nonfiction)|St. Petersburg paradox]].


||Enrico Betti (b. 21 October 1823) was an Italian mathematician, now remembered mostly for his 1871 paper on topology that led to the later naming after him of the Betti numbers.
||1788: George Combe born ... lawyer who turned to the promotion of phrenology and published several works on the subject. He followed Franz Josef Gall in Paris. Gall was a French physician who identified a number of areas on the surface of the head that he linked with specific localizations of cerebral functions and the underlying attributes of the human personality. Combe established the first infant school in Edinburgh and gave evening lectures. He studied the criminal classes and lunatic asylums wishing to reform them. Pic.


||1833 – Alfred Nobel, Swedish chemist and engineer, invented dynamite and founded the Nobel Prize (d. 1896)
||1823: Enrico Betti born ... mathematician, now remembered mostly for his 1871 paper on topology that led to the later naming after him of the Betti numbers. Pic.


||1872 – Jacques Babinet, French physicist, mathematician, and astronomer (b. 1794)
||1833: Alfred Nobel born ... chemist and engineer, invented dynamite and founded the Nobel Prize. Pic.


||1877 – Oswald Avery, Canadian-American physician and microbiologist (d. 1955)
||1872: Jacques Babinet dies ... physicist, mathematician, and astronomer. Pic.


||Heinrich Eduard Heine (October 21 1881) was a German mathematician. Heine became known for results on special functions and in real analysis. In particular, he authored an important treatise on spherical harmonics and Legendre functions (''Handbuch der Kugelfunctionen''). He also investigated basic hypergeometric series. He introduced the Mehler–Heine formula.
||1877: Oswald Avery born ... physician and microbiologist. Avery was one of the first molecular biologists and a pioneer in immunochemistry; he is best known for the experiment (published in 1944 with his co-workers Colin MacLeod and Maclyn McCarty) that isolated DNA as the material of which genes and chromosomes are made. Pic.


||Prof Frederick Guthrie (d. 21 October 1886) was a British physicist and chemist and academic author. Pic.
||1881: Heinrich Eduard Heine dies ... mathematician. Heine became known for results on special functions and in real analysis. In particular, he authored an important treatise on spherical harmonics and Legendre functions (''Handbuch der Kugelfunctionen''). He also investigated basic hypergeometric series. He introduced the Mehler–Heine formula. Pic.


||Llewellyn Hilleth Thomas (b. 21 October 1903) was a British physicist and applied mathematician. He is best known for his contributions to atomic physics,
||1886: Frederick Guthrie dies ... physicist and chemist and academic author. Pic.


||1911 – Mary Blair, American illustrator and animator (d. 1978)
||1886: Aviation pioneer Eugene Burton Ely born.  He will be credited with the first shipboard aircraft take off and landing. Pic.
 
||1896: James Henry Greathead dies ... civil engineer renowned for his work on the London Underground railway. He is also the reason that the London Underground is colloquially named "the tube". Pic.
 
||1903: Llewellyn Thomas born ... physicist and applied mathematician. He is best known for his contributions to atomic physics and solid-state physics. Pic.
 
||1911: Mary Blair born ... illustrator and animator ... prominent in producing art and animation for The Walt Disney Company. Pic.


File:Martin Gardner.jpg|link=Martin Gardner (nonfiction)|1914: Mathematics and science writer [[Martin Gardner (nonfiction)|Martin Gardner]] born.  His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.
File:Martin Gardner.jpg|link=Martin Gardner (nonfiction)|1914: Mathematics and science writer [[Martin Gardner (nonfiction)|Martin Gardner]] born.  His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.


||Mikhail Yakovlevich Suslin (d. 21 October 1919) (sometimes transliterated Souslin) was a Russian mathematician who made major contributions to the fields of general topology and descriptive set theory. His name is especially associated to Suslin's problem, a question relating to totally ordered sets
||1919: Mikhail Yakovlevich Suslin dies ... mathematician who made major contributions to the fields of general topology and descriptive set theory. His name is especially associated to Suslin's problem, a question relating to totally ordered sets. Pic.
 
||1921: Ingrid van Houten-Groeneveld born ... astronomer and academic. Pic.
 
André Jagendorf|link=André Jagendorf (nonfiction)|1926: Botanist and academic [[André Jagendorf (nonfictio)|André Jagendorf]] born.  Jagendorf provided direct evidence that chloroplasts synthesize adenosine triphosphate (ATP) using the chemiosmotic mechanism proposed by Peter Mitchell.


||1921 – Ingrid van Houten-Groeneveld, Dutch astronomer and academic (d. 2015)
||1931: The Sakurakai, a secret society in the Imperial Japanese Army, launches an abortive coup d'état attempt.


||1931 – The Sakurakai, a secret society in the Imperial Japanese Army, launches an abortive coup d'état attempt.
||1935: Evgeny Golod born ... mathematician who proved the Golod–Shafarevich theorem on class field towers. As an application, he gave a negative solution to the Kurosh–Levitzky problem on the nilpotency of finitely generated nil algebras, and so to a weak form of Burnside's problem. Pic: http://www.advgrouptheory.com/GTArchivum/Pictures/gtphotos.html


File:Martian face.jpg|link=Pareidolia (nonfiction)|1958: National [[Pareidolia (nonfiction)|Pareidolia]] Day declared in the United States.
File:Martian face.jpg|link=Pareidolia (nonfiction)|1958: National [[Pareidolia (nonfiction)|Pareidolia]] Day declared in the United States.


||1959 – In New York City, the Solomon R. Guggenheim Museum, designed by Frank Lloyd Wright, opens to the public.
||1959: In New York City, the Solomon R. Guggenheim Museum, designed by Frank Lloyd Wright, opens to the public.


||1959 – U.S. President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA.
||1959: U.S. President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA.


||1961: First attempt at Project Ford West fails: the copper needles fail to disperse.
||1961: First attempt at Project Ford West fails: the copper needles fail to disperse.


||1967 – The Soviet space probe Venera 4 became the first spacecraft to perform direct in situ analysis of the environment of another planet (Venus).
||1967: Ejnar Hertzsprung dies ... chemist and astronomer, born in Copenhagen, Denmark. In the period 1911–1913, together with Henry Norris Russell, he developed the Hertzsprung–Russell diagram. Pic.
 
||1967: The Soviet space probe Venera 4 became the first spacecraft to perform direct in situ analysis of the environment of another planet (Venus).


||Ejnar Hertzsprung (d. 1967) was a Danish chemist and astronomer, born in Copenhagen, Denmark. In the period 1911–1913, together with Henry Norris Russell, he developed the Hertzsprung–Russell diagram.
||1967: Flower Power is a photograph taken by American photographer Bernie Boston for the now-defunct The Washington Star newspaper. Taken on October 21, 1967, during the National Mobilization Committee to End the War in Vietnam's "March on The Pentagon", the photo shows a Vietnam War protester placing a carnation into the barrel of a rifle held by a soldier of the 503rd Military Police Battalion.


File:Wacław Sierpiński.jpg|link=Wacław Sierpiński (nonfiction)|1969: Mathematician and academic [[Wacław Sierpiński (nonfiction)|Wacław Sierpiński]] dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.
File:Wacław Sierpiński.jpg|link=Wacław Sierpiński (nonfiction)|1969: Mathematician and academic [[Wacław Sierpiński (nonfiction)|Wacław Sierpiński]] dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.


||1978 – Australian civilian pilot Frederick Valentich vanishes in a Cessna 182 over the Bass Strait south of Melbourne, after reporting contact with an unidentified aircraft.
||1978: Australian civilian pilot Frederick Valentich vanishes in a Cessna 182 over the Bass Strait south of Melbourne, after reporting contact with an unidentified aircraft.
 
||1980: Hans Asperger dies ... physician and psychologist. Pic.
 
||1995: Linda Goodman dies ... astrologer and author. Pic search.


||1980 – Hans Asperger, Austrian physician and psychologist (b. 1906)
||1998: Nicholas Kemmer dies ... nuclear physicist working in Britain, who played an integral and leading edge role in United Kingdom's nuclear program. Pic.


|| Nicholas Kemmer (d. 21 October 1998), was a Russian-born nuclear physicist working in Britain, who played an integral and leading edge role in United Kingdom's nuclear program. Pic.
||2000: Dirk Jan Struik dies ... mathematician, historian of mathematics, and Marxian theoretician. Pic.


||Dirk Jan Struik (d. October 21, 2000) was a Dutch mathematician, historian of mathematics, and Marxian theoretician. Pic.
||2001: John H. Plumb dies ... historian known for his books on British 18th-century history. During the Second World War Plumb worked in the codebreaking department of the Foreign Office at Bletchley Park, Hut 8 & Hut 4; later Block B. He headed a section working on a German Naval hand cipher, Reservehandverfahren. Pic search.


||Bernhard Hermann Neumann (d. 21 October 2002) was a German-born British-Australian mathematician who was a leader in the study of group theory. Pic.
||2002: Bernhard Hermann Neumann dies ... mathematician who was a leader in the study of group theory. Pic.


||2005 – Images of the dwarf planet Eris are taken and subsequently used in documenting its discovery by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz.
||2005: Images of the dwarf planet Eris are taken and subsequently used in documenting its discovery by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz.


File:Green_Spiral_9.jpg|link=Green Spiral 9 (nonfiction)|2017: ''[[Green Spiral 9 (nonfiction)|Green Spiral 9]]'' feels more green than ever, according to new [[Chromatography (nonfiction)|chromatographic survey]].
||2011: George Daniels dies ... horologist who was considered to be the best in the world during his lifetime. He was one of the few modern watchmakers who built complete watches by hand (including the case and dial). But it was his creation of the coaxial escapement for which he is most remembered. The movement, which removed the need to add a lubricant, has been used by Omega in their highest-grade watches since 1999. Pic. https://en.wikipedia.org/wiki/George_Daniels_(watchmaker)


|File:Radon Lake.jpg|link=Radon Lake|[[Radon Lake]] contained within high-energy plasma bubble.
||2017: Gilbert Stork dies ... organic chemist and academic. ... known for making significant contributions to the total synthesis of natural products, including a life-long fascination with the synthesis of quinine. In so doing he also made a number of contributions to mechanistic understanding of reactions, and performed pioneering work on enamine chemistry, leading to development of the Stork enamine alkylation. Pic search.
|File:The Eel receives news from informants.jpg|link=The Eel's henchmen|[[The Eel]] receives news from informants. Note the golden serpent ring which The Eel uses to [[The Eel's henchmen|hypnotize and recruit henchmen]].
|File:Red Eyes.jpg|link=Red Eyes|[[Red Eyes]] and [[Computational Human Phantom]] form crime-fighting team.
|File:Cleopatra-dies-of-asp-bite-and-IBM-PC.png|link=Death of Cleopatra|[[Death of Cleopatra|Cleopatra dies]] of asp bite;  IBM-PC witnesses the event, does nothing to intervene.
|File:Joseph_Schillinger_and_the_Rhythmicon.jpg|link=Drum machine (nonfiction)|Music educator Joseph Schillinger assures Rhythmicon that it will grow up to be a full-fledged [[drum machine (nonfiction)|drum machine]].
|File:Chromatography of chlorophyll.jpg|link=Chromatography (nonfiction)|[[Chromatography (nonfiction)|Chromatography]] is rewarding career, says formerly blank strip of paper.
|File:Poicephalus senegalus egg tooth.jpg|link=Egg tooth (nonfiction)|Baby bird with [[egg tooth (nonfiction)|egg tooth]] is adorable and menacing at the same time.


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Latest revision as of 06:12, 13 March 2022

  • 1687: Mathematician and theorist Nicolaus I Bernoulli born. Bernoulli will introduce a successful resolution to the St. Petersburg paradox.

    1687: Mathematician and theorist Nicolaus I Bernoulli born. Bernoulli will introduce a successful resolution to the St. Petersburg paradox.

  • 1914: Mathematics and science writer Martin Gardner born. His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.

    1914: Mathematics and science writer Martin Gardner born. His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.

  • André Jagendorf

    1926: Botanist and academic André Jagendorf born. Jagendorf provided direct evidence that chloroplasts synthesize adenosine triphosphate (ATP) using the chemiosmotic mechanism proposed by Peter Mitchell.

  • 1958: National Pareidolia Day declared in the United States.

    1958: National Pareidolia Day declared in the United States.

  • 1969: Mathematician and academic Wacław Sierpiński dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.

    1969: Mathematician and academic Wacław Sierpiński dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.

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