Template:Selected anniversaries/March 5

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  1223 BC: Solar eclipse occurs; the event is recorded in a Syrian clay tablet, in the Ugaritic language.

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  1499: Polymath Johannes Trithemius uses Gnomon algorithm functions to prevent accidental solar eclipse.

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  1574: Mathematician William Oughtred born. He will invent the slide rule in 1662.

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  1639: Mathematician John Pell uses Gnomon algorithm functions to detect and prevent crimes against mathematical constants.

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  1640: Didacus automaton attends and records lecture by John Pell.

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  1926: Mathematician Lev Schnirelmann reverse-engineers Didacus automaton, retrieves complete copy of lecture by John Pell.

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  2016: Computer programmer and engineer Ray Tomlinson dies. He implemented the first email system on ARPANET, including the "@" separator which is still in use today.