Template:Selected anniversaries/April 22: Difference between revisions

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||1883: Andrew Talcott born ... civil engineer and close friend of Civil War General Robert E. Lee.  
||1883: Andrew Talcott born ... civil engineer and close friend of Civil War General Robert E. Lee.  


||Harald August Bohr (b. 22 April 1887) was a Danish mathematician and soccer player. After receiving his doctorate in 1910, Bohr became an eminent mathematician, founding the field of almost periodic functions.  
||1887: Harald August Bohr born ... mathematician and soccer player. After receiving his doctorate in 1910, Bohr became an eminent mathematician, founding the field of almost periodic functions.  


||1891 – Vittorio Jano, Italian engineer (d. 1965)
||1891: Vittorio Jano born ... engineer.


||1891 – Harold Jeffreys, English mathematician, geophysicist, and astronomer (d. 1989)
||1891: Harold Jeffreys born ... mathematician, geophysicist, and astronomer.


||1891 – Nicola Sacco, Italian-American anarchist (d. 1927)
||1891: Nicola Sacco born ... anarchist.


File:J. Robert Oppenheimer.jpg|link=J. Robert Oppenheimer (nonfiction)|1904: American physicist and academic [[J. Robert Oppenheimer (nonfiction)|J. Robert Oppenheimer]] born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling.  Oppenheimer will be called the "father of the atomic bomb" for his role in the Manhattan Project.
File:J. Robert Oppenheimer.jpg|link=J. Robert Oppenheimer (nonfiction)|1904: American physicist and academic [[J. Robert Oppenheimer (nonfiction)|J. Robert Oppenheimer]] born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling.  Oppenheimer will be called the "father of the atomic bomb" for his role in the Manhattan Project.


||Stanisław Jaśkowski (b. April 22, 1906) was a Polish logician who made important contributions to proof theory and formal semantics. Jaśkowski is considered to be one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s.
||1906: Stanisław Jaśkowski born ... logician who made important contributions to proof theory and formal semantics. Jaśkowski is considered to be one of the founders of natural deduction, which he discovered independently of Gerhard Gentzen in the 1930s.


||Norman Earl Steenrod (b. April 22, 1910) was a mathematician most widely known for his contributions to the field of algebraic topology.
||1910: Norman Earl Steenrod born ... mathematician most widely known for his contributions to the field of algebraic topology.


||1915 – The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres. See: Battle of Gravenstafel Ridge
||1915: The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres. See: Battle of Gravenstafel Ridge


||1916 – Hanfried Lenz, German mathematician and academic (d. 2013)
||1916: Hanfried Lenz born ... mathematician and academic.


||1919 – Donald J. Cram, American chemist and academic, Nobel Prize laureate (d. 2001)
||1919: Donald J. Cram born ... chemist and academic, Nobel Prize laureate.


||1922 – Wolf V. Vishniac, American microbiologist and academic (d. 1973)
||1922: Wolf V. Vishniac, American microbiologist and academic (d. 1973)


||1930 – The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
||1930: The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.


||1933 – Anthony Llewellyn, Welsh-American chemist and astronaut (d. 2013)
||1933: Anthony Llewellyn born ... chemist and astronaut.


||Amir Pnueli (b. April 22, 1941) was an Israeli computer scientist and the 1996 Turing Award recipient.  He worked on temporal logic and model checking, particularly regarding fairness properties of concurrent systems. Pic.  
||1941: Amir Pnueli born ... computer scientist and the 1996 Turing Award recipient.  He worked on temporal logic and model checking, particularly regarding fairness properties of concurrent systems. Pic.  


||1944 – The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater.
||1944: The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater.


||1945 – Wilhelm Cauer, German mathematician and academic (b. 1900)
||1945: Mathematician Jacques Feldbau dies at the Ganacker Camp, annex of the concentration camp of Flossenbürg in Germany. He worked on differential geometry and topology ... one of the founders of the theory of fiber bundles. He is the one who first proved that a fiber bundle over a simplex is trivializable and who used this to classify bundles over spheres.
 
||1945: Wilhelm Cauer dies ... mathematician and academic.


File:J._R._Oppenheimer.jpg|link=J. R. Oppenheimer|1953: Singer-physicist [[J. R. Oppenheimer]] performs his hit song "Destroyer of Worlds" at the Grand Ole Opry, leading to his being summoned before the [[House Un-American Activities Committee (nonfiction)|House Un-American Activities Committee]].
File:J._R._Oppenheimer.jpg|link=J. R. Oppenheimer|1953: Singer-physicist [[J. R. Oppenheimer]] performs his hit song "Destroyer of Worlds" at the Grand Ole Opry, leading to his being summoned before the [[House Un-American Activities Committee (nonfiction)|House Un-American Activities Committee]].

Revision as of 07:16, 26 August 2018

  • 1592: Minister, scholar, astronomer, mathematician, cartographer, and inventor Wilhelm Schickard born. He will design and build calculating machines, and invent techniques for producing improved maps.

    1592: Minister, scholar, astronomer, mathematician, cartographer, and inventor Wilhelm Schickard born. He will design and build calculating machines, and invent techniques for producing improved maps.

  • 1779: Steganographic analysis of The Sleep of Reason Produces Monsters unexpectedly releases the Forbidden Ratio, which immediately begins to recruit a criminal gang made up of degenerate cases.

    1779: Steganographic analysis of The Sleep of Reason Produces Monsters unexpectedly releases the Forbidden Ratio, which immediately begins to recruit a criminal gang made up of degenerate cases.

  • 1833: Engineer and explorer Richard Trevithick dies. He was an early pioneer of steam-powered road and rail transport, developing the first high-pressure steam engine, and building the first full-scale working railway steam locomotive.

    1833: Engineer and explorer Richard Trevithick dies. He was an early pioneer of steam-powered road and rail transport, developing the first high-pressure steam engine, and building the first full-scale working railway steam locomotive.

  • 1880: Actor, cryptographer, and alleged time-traveller Niles Cartouchian uses time crystals to track down and decompute the Forbidden Ratio.

    1880: Actor, cryptographer, and alleged time-traveller Niles Cartouchian uses time crystals to track down and decompute the Forbidden Ratio.

  • 1904: American physicist and academic J. Robert Oppenheimer born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling. Oppenheimer will be called the "father of the atomic bomb" for his role in the Manhattan Project.

    1904: American physicist and academic J. Robert Oppenheimer born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, and the first prediction of quantum tunneling. Oppenheimer will be called the "father of the atomic bomb" for his role in the Manhattan Project.

  • 1953: Singer-physicist J. R. Oppenheimer performs his hit song "Destroyer of Worlds" at the Grand Ole Opry, leading to his being summoned before the House Un-American Activities Committee.

    1953: Singer-physicist J. R. Oppenheimer performs his hit song "Destroyer of Worlds" at the Grand Ole Opry, leading to his being summoned before the House Un-American Activities Committee.

  • 1954: Red Scare: Witnesses begin testifying and live television coverage of the Army–McCarthy hearings begins.

    1954: Red Scare: Witnesses begin testifying and live television coverage of the Army–McCarthy hearings begins.

  • 1954: Writer and alleged troll Culvert Origenes testifies before the Senate Permanent Subcommittee on Investigations during the Army–McCarthy hearings. Origenes adamantly refuses to name other "alleged trolls", insisting that "there is nothing 'alleged' about trolls," and denouncing the investigation as "a witch-hunt, and not in a good way."

    1954: Writer and alleged troll Culvert Origenes testifies before the Senate Permanent Subcommittee on Investigations during the Army–McCarthy hearings. Origenes adamantly refuses to name other "alleged trolls", insisting that "there is nothing 'alleged' about trolls," and denouncing the investigation as "a witch-hunt, and not in a good way."

  • 1970: The first Earth Day is celebrated.

    1970: The first Earth Day is celebrated.

  • 1978: Optical fiber is first used to carry live telephone traffic.

    1978: Optical fiber is first used to carry live telephone traffic.

  • 1978: Mathematician, art critic, and alleged time-traveller The Eel escapes from the Nacreum, a high-security transdimensional prison, by transmitting himself over the new optical fiber telephone network.

    1978: Mathematician, art critic, and alleged time-traveller The Eel escapes from the Nacreum, a high-security transdimensional prison, by transmitting himself over the new optical fiber telephone network.

  • 2006: Computer scientist and academic Henriette Avram dies. She developed the MARC (Machine Readable Cataloging) format, the international data standard for bibliographic and holdings information in libraries.

    2006: Computer scientist and academic Henriette Avram dies. She developed the MARC (Machine Readable Cataloging) format, the international data standard for bibliographic and holdings information in libraries.

  • 2018: Signed first edition of Lend a Hand stolen from the Louvre by the Forbidden Ratio in a daring daytime robbery. Lend a Hand, which depicts an organic golem, had been in the Louvre for less than twenty-four hours.

    2018: Signed first edition of Lend a Hand stolen from the Louvre by the Forbidden Ratio in a daring daytime robbery. Lend a Hand, which depicts an organic golem, had been in the Louvre for less than twenty-four hours.

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