Template:Selected anniversaries/February 21: Difference between revisions
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||921: Abe no Seimei born ... Japanese astrologer. | ||921: Abe no Seimei born ... Japanese astrologer. In addition to his prominence in history, he is a legendary figure in Japanese folklore. Pic. | ||
||1556: Sethus Calvisius born ... astronomer, composer, and theorist | ||1556: Sethus Calvisius born ... astronomer, composer, and theorist. | ||
File:Gérard Desargues.jpg|link=Girard Desargues (nonfiction)|1591: Mathematician and engineer [[Girard Desargues (nonfiction)|Girard Desargues]] born. He will be one of the founders of projective geometry. | File:Gérard Desargues.jpg|link=Girard Desargues (nonfiction)|1591: Mathematician and engineer [[Girard Desargues (nonfiction)|Girard Desargues]] born. He will be one of the founders of projective geometry. | ||
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File:Baruch Spinoza.jpg|link=Baruch Spinoza (nonfiction)|1677: Philosopher, scholar, and lens-grinder [[Baruch Spinoza (nonfiction)|Baruch Spinoza]] dies. He laid the groundwork for the 18th-century Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe. | File:Baruch Spinoza.jpg|link=Baruch Spinoza (nonfiction)|1677: Philosopher, scholar, and lens-grinder [[Baruch Spinoza (nonfiction)|Baruch Spinoza]] dies. He laid the groundwork for the 18th-century Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe. | ||
||1764: Ruan Yuan born ... the most prominent Chinese scholar during the first half of the 19th century. | ||1764: Ruan Yuan born ... the most prominent Chinese scholar during the first half of the 19th century. He won the jinshi degree in the imperial examinations in 1789 and was subsequently appointed to the Hanlin Academy. He was known for his work ''Biographies of Astronomers and Mathematicians''. Pic. | ||
||1788: Johann Georg Palitzsch dies ... astronomer. He became famous for recovering Comet 1P/Halley (better known as Halley's Comet) on Christmas Day, 1758.[1] The periodic nature of this comet had been deduced by its namesake Edmond Halley in 1705, but Halley had died before seeing if his prediction would come true. Pic. | |||
File:Sir Francis Ronalds.jpg|link=Francis Ronalds (nonfiction)|1788: Scientist, inventor, and engineer [[Francis Ronalds (nonfiction)|Francis Ronalds]] born. He will be knighted for creating the first working electric telegraph. | File:Sir Francis Ronalds.jpg|link=Francis Ronalds (nonfiction)|1788: Scientist, inventor, and engineer [[Francis Ronalds (nonfiction)|Francis Ronalds]] born. He will be knighted for creating the first working electric telegraph. | ||
Revision as of 20:35, 27 February 2019
1591: Mathematician and engineer Girard Desargues born. He will be one of the founders of projective geometry.
1592: Canterbury scrying engine crashes, predicts faulty future; the resulting paradox will develop into an epidemic of capacitor failure by the early twenty-first century.
1677: Philosopher, scholar, and lens-grinder Baruch Spinoza dies. He laid the groundwork for the 18th-century Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe.
1788: Scientist, inventor, and engineer Francis Ronalds born. He will be knighted for creating the first working electric telegraph.
1899: Marie and Pierre Curie use radium to detect and expose crimes against physical constants.
1926: Physicist and academic Heike Kamerlingh Onnes dies. He received widespread recognition for his work, including the 1913 Nobel Prize in Physics for "his investigations on the properties of matter at low temperatures which led, inter alia, to the production of liquid helium".
1933: Alice Beta tells reporters that the rise of the Nazi party in Germany will lead to "new and unprecedently dangerous crimes against mathematical constants."
1938: Astronomer and journalist George Ellery Hale dies. He discovered magnetic fields in sunspots, and was a leader or key figure in the planning or construction of several world-leading telescopes.
1974: Film director and arms dealer Egon Rhodomunde privately advises White House aides H. R. Haldeman and John Ehrlichman that they "will both be sentenced to jail a year from today" for their roles in the Watergate scandal.
1975: Watergate scandal: Former United States Attorney General John N. Mitchell and former White House aides H. R. Haldeman and John Ehrlichman are sentenced to prison.
2002: Capacitor plague affects several brands of portable envy devices.
2016: Signed first edition of Yellow Spiral stolen from the Uffizi gallery in Florence by agents of the Forbidden Ratio gang, perhaps under contract to Baron Zersetzung.