Template:Selected anniversaries/December 21: Difference between revisions
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||1805: Thomas Graham born ... chemist and academic. | ||1805: Thomas Graham born ... chemist and academic. | ||
|link=Joseph Fourier (nonfiction)|1807: Mathematician [[Joseph Fourier (nonfiction)|Joseph Fourier]] announced to the French Academy of Science that an arbitrary function could be expanded as an infinite series of sines and cosines (we now call them Fourier series). | |||
||1824: James Parkinson dies ... physician and paleontologist. | ||1824: James Parkinson dies ... physician and paleontologist. | ||
Revision as of 08:31, 21 December 2018
1878: Mathematician and philosopher Jan Łukasiewicz born. He will think innovatively about traditional propositional logic, the principle of non-contradiction and the law of excluded middle.
1913: Arthur Wynne's "word-cross", the first crossword puzzle, is published in the New York World.
1974: Fantasy Voronoi diagram upstages Fantasy Football.
1976: Chronography of 354 wins Pulitzer Prize.
1984: Mandelbrot set develops artificial intelligence, discovers new class of Gnomon algorithm functions.
2016: Signed first edition of Traveller used in high-energy literature experiments develops artificial intelligence.