Template:Selected anniversaries/July 20: Difference between revisions

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||AD 70: Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots.
||AD 70: Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots.


||1597: Frans van Ravelingen dies ... scholar, printer and bookseller, working at Antwerp and later at Leiden. For the last decade of his life he was professor of Hebrew at Leiden University. He produced an Arabic-Latin dictionary, about 550 pages, published posthumously in 1613 at Leiden. This was the first publication by printing press of a book-length dictionary for the Arabic language in Latin. Pic.
File:Franciscus_Raphelengius.jpg|link=Franciscus Raphelengius (nonfiction)|1597: Scholar, printer, and bookseller [[Franciscus Raphelengius (nonfiction)|Franciscus Raphelengius]] dies. Raphelengius produced an Arabic-Latin dictionary, about 550 pages, which was published posthumously in 1613 at Leiden — the first publication by printing press of a book-length dictionary for the Arabic language in Latin.  


||1700: Henri-Louis Duhamel du Monceau born ... physician, naval engineer and botanist. Pic.
||1700: Henri-Louis Duhamel du Monceau born ... physician, naval engineer and botanist. Pic.
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File:Georg Friedrich Bernhard Riemann.jpg|link=Bernhard Riemann (nonfiction)|1866: Mathematician and academic [[Bernhard Riemann (nonfiction)|Bernhard Riemann]] dies. He made contributions to analysis, number theory, and differential geometry.
File:Georg Friedrich Bernhard Riemann.jpg|link=Bernhard Riemann (nonfiction)|1866: Mathematician and academic [[Bernhard Riemann (nonfiction)|Bernhard Riemann]] dies. He made contributions to analysis, number theory, and differential geometry.


File:Riemann critical line.png|link=Riemann hypothesis (nonfiction)|1867: [[Riemann hypothesis (nonfiction)|Riemann hypothesis]]: The real part (red) and imaginary part (blue) of the Riemann zeta function along the critical line Re(s) = 1/2 pre-visualizes non-trivial [[crimes against mathematical constants]] at Im(s) = ±14.135, ±21.022 and ±25.011.
||1876: Mathematician and academic Otto Blumenthal dies in the Theresienstadt concentration camp. Blumenthal made a fundamental, though often overlooked, contribution to aerodynamics by building on Joukowsky's work to extract the complex transformation that carries the latter's name. Pic.


||1876: Mathematician and academic Otto Blumenthal dies in the Theresienstadt concentration camp. Blumenthal made a fundamental, though often overlooked, contribution to aerodynamics by building on Joukowsky's work to extract the complex transformation that carries the latter's name. Pic.
||1882: Olga Hahn-Neurath born ... mathematician and philosopher ... Boolean algebra. She is best known for being a member of the Vienna Circle. Pic search.


||1882: Olga Hahn-Neurath born ... mathematician and philosopher ... Boolean algebra. She is best known for being a member of the Vienna Circle. Pic search yes:  https://www.google.com/search?q=Olga+Hahn-Neurath
||1888: Paul Langerhans dies ... pathologist, physiologist and biologist. Pic.


||1888: Geneve Lucy Angela Shaffer born ... realtor, lecturer and author. In 1909 she was touted by the San Francisco Call as "the first woman in the world to sail in a flying machine". Pic.
||1888: Geneve Lucy Angela Shaffer born ... realtor, lecturer and author. In 1909 she was touted by the San Francisco Call as "the first woman in the world to sail in a flying machine". Pic.
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||1919: Rolf Hagedorn born ... theoretical physicist who worked at CERN. He is known for the idea that hadronic matter has a "melting point". The Hagedorn temperature is named in his honor. Pic.
||1919: Rolf Hagedorn born ... theoretical physicist who worked at CERN. He is known for the idea that hadronic matter has a "melting point". The Hagedorn temperature is named in his honor. Pic.
||1920: Cartha DeLoach born ... FBI agent and author. Pic.


||1922: Andrey Markov dies ... mathematician and theorist. Pic.
||1922: Andrey Markov dies ... mathematician and theorist. Pic.


||1925: Eugene van Tamelen born ... organic chemist who is especially recognized for his contributions to bioorganic chemistry. He pioneered in what is today called biomimetic synthesis. Pic search groovy: https://www.google.com/search?q=Eugene+van+Tamelen
||1925: Eugene van Tamelen born ... organic chemist who is especially recognized for his contributions to bioorganic chemistry. He pioneered in what is today called biomimetic synthesis. Pic search groovy.


||1929: Roland Lvovich Dobrushin born ... mathematician who made important contributions to probability theory, mathematical physics, and information theory. Pic.
||1929: Roland Lvovich Dobrushin born ... mathematician who made important contributions to probability theory, mathematical physics, and information theory. Pic.
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File:Bonus marchers.gif|link=Bonus Army (nonfiction)|1932: In Washington, D.C., police fire tear gas on World War I veterans, part of the [[Bonus Army (nonfiction)|Bonus Expeditionary Force]], who attempt to march to the White House.
File:Bonus marchers.gif|link=Bonus Army (nonfiction)|1932: In Washington, D.C., police fire tear gas on World War I veterans, part of the [[Bonus Army (nonfiction)|Bonus Expeditionary Force]], who attempt to march to the White House.
||1933: Ciprian Foiaș born ... mathematician ... contributions in operator theory. Pic.


||1934: Labor unrest in the U.S.: Police in Minneapolis fire upon striking truck drivers, during the Minneapolis Teamsters Strike of 1934, killing two and wounding sixty-seven.
||1934: Labor unrest in the U.S.: Police in Minneapolis fire upon striking truck drivers, during the Minneapolis Teamsters Strike of 1934, killing two and wounding sixty-seven.
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||1934: West Coast waterfront strike: In Seattle, police fire tear gas on and club 2,000 striking longshoremen. The governor of Oregon calls out the National Guard to break a strike on the Portland docks.
||1934: West Coast waterfront strike: In Seattle, police fire tear gas on and club 2,000 striking longshoremen. The governor of Oregon calls out the National Guard to break a strike on the Portland docks.


||1937: Olga Hahn-Neurath dies ... mathematician and philosopher ... Boolean algebra. She is best known for being a member of the Vienna Circle. Pic search yes:  https://www.google.com/search?q=Olga+Hahn-Neurath
||1937: Olga Hahn-Neurath dies ... mathematician and philosopher ... Boolean algebra. She is best known for being a member of the Vienna Circle. Pic search.


File:Guglielmo Marconi.jpg|link=Guglielmo Marconi (nonfiction)|1937: Businessman and inventor [[Guglielmo Marconi (nonfiction)|Guglielmo Marconi]] dies.  He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
File:Guglielmo Marconi.jpg|link=Guglielmo Marconi (nonfiction)|1937: Businessman and inventor [[Guglielmo Marconi (nonfiction)|Guglielmo Marconi]] dies.  He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".


||1938: The United States Department of Justice files suit in New York City against the motion picture industry charging violations of the Sherman Antitrust Act in regards to the studio system. The case would eventually result in a break-up of the industry in 1948.
||1938: The United States Department of Justice files suit in New York City against the motion picture industry charging violations of the Sherman Antitrust Act in regards to the studio system. The case would eventually result in a break-up of the industry in 1948.
File:Carl Louis Ferdinand von Lindemann.jpg|link=Ferdinand von Lindemann (nonfiction)|1938: Mathematician and crime-fighter [[Ferdinand von Lindemann (nonfiction)|Ferdinand von Lindemann]] uses the transcendental property of π (pi) to detect and prevent [[crimes against mathematical constants]].


||1941: Soviet leader Joseph Stalin consolidates the Commissariats of Home Affairs and National Security to form the NKVD and names Lavrentiy Beria its chief.
||1941: Soviet leader Joseph Stalin consolidates the Commissariats of Home Affairs and National Security to form the NKVD and names Lavrentiy Beria its chief.


||1944: World War II: Adolf Hitler survives an assassination attempt led by German Army Colonel Claus von Stauffenberg.
||1944: World War II: Adolf Hitler survives an assassination attempt led by German Army Colonel Claus von Stauffenberg.
File:Officials of the Army Ballistic Missile Agency.jpg|link=Operation Paperclip (nonfiction)|1945: The United States Secretary of State approves the transfer of Wernher von Braun and his team of Nazi rocket scientists to the U.S. under [[Operation Paperclip (nonfiction)|Operation Paperclip]].


||1950: Cold War: In Philadelphia, Harry Gold pleads guilty to spying for the Soviet Union by passing secrets from atomic scientist Klaus Fuchs.
||1950: Cold War: In Philadelphia, Harry Gold pleads guilty to spying for the Soviet Union by passing secrets from atomic scientist Klaus Fuchs.
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||1969: Apollo program: Apollo 11's crew successfully makes the first manned landing on the Moon in the Sea of Tranquility. Americans Neil Armstrong and Buzz Aldrin became the first humans to walk on the Moon (July 21 UTC).
||1969: Apollo program: Apollo 11's crew successfully makes the first manned landing on the Moon in the Sea of Tranquility. Americans Neil Armstrong and Buzz Aldrin became the first humans to walk on the Moon (July 21 UTC).


||1970: Mathematician Ted Youngs dies. Youngs worked in geometric topology; he is famous for the Ringel–Youngs theorem which proved the Heawood conjecture, a problem closely related to the Four color theorem for surfaces of higher genus. Pic search yes: https://www.google.com/search?q=John+William+Theodore+Youngs+mathematician
||1970: Mathematician Ted Youngs dies. Youngs worked in geometric topology; he is famous for the Ringel–Youngs theorem which proved the Heawood conjecture, a problem closely related to the Four color theorem for surfaces of higher genus. Pic search.


||1976: The American Viking 1 lander successfully lands on Mars.
||1976: The American Viking 1 lander successfully lands on Mars.
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File:MKUltra proposal.jpg|link=Project MKUltra (nonfiction)|1977: [[Project MKUltra (nonfiction)]]: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.
File:MKUltra proposal.jpg|link=Project MKUltra (nonfiction)|1977: [[Project MKUltra (nonfiction)]]: The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.


||1984: Gabriel Andrew Dirac dies ... mathematician who mainly worked in graph theory. He stated a sufficient condition for a graph to contain a Hamiltonian circuit. In 1951 he conjectured that n points in the plane, not all collinear, must span at least [n/2] two-point lines, where [x] is the largest integer not exceeding x. This conjecture is still open. Pic search: https://www.google.com/search?q=gabriel+andrew+dirac
||1984: Gabriel Andrew Dirac dies ... mathematician who mainly worked in graph theory. He stated a sufficient condition for a graph to contain a Hamiltonian circuit. In 1951 he conjectured that n points in the plane, not all collinear, must span at least [n/2] two-point lines, where [x] is the largest integer not exceeding x. This conjecture is still open. Pic search.


||1989: Valentine "Valya" Bargmann dies ... mathematician and theoretical physicist. Pic.
||1989: Valentine "Valya" Bargmann dies ... mathematician and theoretical physicist. Pic.
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||2007: Kai Manne Börje Siegbahn dies ... physicist. Pic.
||2007: Kai Manne Börje Siegbahn dies ... physicist. Pic.
Two_Creatures_2.jpg|link=Two Creatures 2 (nonfiction)|2017: Signed first edition of ''[[Two Creatures 2 (nonfiction)|Two Creatures 2]]'' stolen from the Weisman Art Museum in [[New Minneapolis, Canada]] by [[Killer Poke]] and his gang of [[Crimes against mathematical constants|criminal mathematical functions]].


File:Pin Man.jpg|link=Pin Man|2018: [[Pin Man]] says he "was an unwilling test subject in the [[Project MKUltra (nonfiction)]]."
File:Pin Man.jpg|link=Pin Man|2018: [[Pin Man]] says he "was an unwilling test subject in the [[Project MKUltra (nonfiction)]]."


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Latest revision as of 10:16, 7 February 2022

  • 1597: Scholar, printer, and bookseller Franciscus Raphelengius dies. Raphelengius produced an Arabic-Latin dictionary, about 550 pages, which was published posthumously in 1613 at Leiden — the first publication by printing press of a book-length dictionary for the Arabic language in Latin.

    1597: Scholar, printer, and bookseller Franciscus Raphelengius dies. Raphelengius produced an Arabic-Latin dictionary, about 550 pages, which was published posthumously in 1613 at Leiden — the first publication by printing press of a book-length dictionary for the Arabic language in Latin.

  • 1866: Mathematician and academic Bernhard Riemann dies. He made contributions to analysis, number theory, and differential geometry.

    1866: Mathematician and academic Bernhard Riemann dies. He made contributions to analysis, number theory, and differential geometry.

  • 1932: In Washington, D.C., police fire tear gas on World War I veterans, part of the Bonus Expeditionary Force, who attempt to march to the White House.

    1932: In Washington, D.C., police fire tear gas on World War I veterans, part of the Bonus Expeditionary Force, who attempt to march to the White House.

  • 1937: Businessman and inventor Guglielmo Marconi dies. He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

    1937: Businessman and inventor Guglielmo Marconi dies. He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

  • 1945: The United States Secretary of State approves the transfer of Wernher von Braun and his team of Nazi rocket scientists to the U.S. under Operation Paperclip.

    1945: The United States Secretary of State approves the transfer of Wernher von Braun and his team of Nazi rocket scientists to the U.S. under Operation Paperclip.

  • 1977: Project MKUltra (nonfiction): The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.

    1977: Project MKUltra (nonfiction): The Central Intelligence Agency releases documents under the Freedom of Information Act revealing it had engaged in mind-control experiments.

  • 2018: Pin Man says he "was an unwilling test subject in the Project MKUltra (nonfiction)."

    2018: Pin Man says he "was an unwilling test subject in the Project MKUltra (nonfiction)."

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