Template:Selected anniversaries/December 21: Difference between revisions
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File:Crossword.png|link=Crossword (nonfiction)|1913: Arthur Wynne's "word-cross", the first [[Crossword (nonfiction)|crossword puzzle]], is published in the ''New York World''. | File:Crossword.png|link=Crossword (nonfiction)|1913: Arthur Wynne's "word-cross", the first [[Crossword (nonfiction)|crossword puzzle]], is published in the ''New York World''. | ||
||Frank John Fenner (b. 21 December 1914) was an Australian scientist with a distinguished career in the field of virology. His two greatest achievements are cited as overseeing the eradication of smallpox, and the control of Australia's rabbit plague through the introduction of Myxoma virus. Pic. | |||
||1919 – American anarchist Emma Goldman is deported to Russia. | ||1919 – American anarchist Emma Goldman is deported to Russia. | ||
Revision as of 19:51, 12 April 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.