Template:Selected anniversaries/February 27

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  1539: Scholar, printer, and bookseller Franciscus Raphelengius born. Raphelengius will produce an Arabic-Latin dictionary, about 550 pages, which will be published posthumously in 1613 at Leiden — the first publication by printing press of a book-length dictionary for the Arabic language in Latin.

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  1670: First known use of Pascal's calculator in high-energy literature experiments.

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  1735: Physician, satirist, and polymath John Arbuthnot dies. He invented the figure of John Bull.

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  1736: Philosopher and crime-fighter Red Eyes defeats gang of physics criminals in close-quarters combat.

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  1869: Physician, research scientist, and author Alice Hamilton born. She will be a leading expert in the field of occupational health and a pioneer in the field of industrial toxicology.

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  1870: Tokens harvested from Diagramaceous soil generate new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.

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  1881: Mathematician and philosopher L. E. J. Brouwer born. He will make contributions to topology, set theory, measure theory and complex analysis; and he will found the mathematical philosophy of intuitionism.

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  1938: Mathematician and philosopher Edmund Husserl publishes new class of Gnomon algorithm functions based on transcendental consciousness as the limit of all possible knowledge.

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  1940: Martin Kamen and Sam Ruben discover carbon-14. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.

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  2018: Two Creatures 6 voted Picture of the Day by the citizens of New Minneapolis, Canada.