Template:Selected anniversaries/December 21: Difference between revisions
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||1542 – Thomas Allen, English mathematician and astrologer (d. 1632) | ||1542 – Thomas Allen, English mathematician and astrologer (d. 1632) | ||
||Johann Christian Wiegleb (b. December 21, 1732) was a notable German druggist and early innovator of chemistry as a science. | |||
||1805 – Thomas Graham, Scottish chemist and academic (d. 1869) | ||1805 – Thomas Graham, Scottish chemist and academic (d. 1869) | ||
Revision as of 16:39, 11 December 2017
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.