Template:Selected anniversaries/April 22: Difference between revisions

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||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.
File:Plutonium pellet.jpg|link=Plutonium (nonfiction)|1961: [[Plutonium (nonfiction)|Plutonium]] used for [[crimes against mathematical constants]], says [[Cantor Parabola]].
|File:The Hal Jordan Playbook.jpg|link=The Hal Jordan Playbook|1964: Publication of ''[[The Hal Jordan Playbook]]'' reveals new class of [[crimes against mathematical constants]].
Optical_fibers.jpg|link=Optical fiber (nonfiction)|1977: [[Optical fiber (nonfiction)|Optical fiber]] is first used to carry live telephone traffic.


||1970 – The first Earth Day is celebrated.
||1970 – The first Earth Day is celebrated.
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||2012 – George Rathmann, American chemist, biologist, and businessman (b. 1927)
||2012 – George Rathmann, American chemist, biologist, and businessman (b. 1927)
File:Lend a Hand.jpg|link=Lend a Hand (nonfiction)|2018: Signed first edition of ''[[Lend a Hand (nonfiction)|Lend a Hand]]'' stolen from the Louvre by the [[Forbidden Ratio]] in a daring daytime robbery.


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Revision as of 16:23, 21 April 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.

  • 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.

  • 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.

    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.

  • 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.

    2018: Signed first edition of Lend a Hand stolen from the Louvre by the Forbidden Ratio in a daring daytime robbery.

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