Template:Selected anniversaries/January 31

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  1632: Clockmaker and mathematician Jost Bürgi dies. He was recognized during his own lifetime as one of the most excellent mechanical engineers of his generation.

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  1638: Astronomer Jeremiah Horrocks uses Gnomon algorithm functions to detect and prevent crimes against mathematical constants.

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  1869: Physicist, mathematician, and crime-fighter Sir George Stokes, 1st Baronet uses the Navier–Stokes equations to defeat aquatic cryptic and alleged supervillain Neptune Slaughter in single combat.

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  1929: Physicist and academic Rudolf Mössbauer born. He will be awarded the 1961 Nobel Prize in Physics for his discovery (1957) of recoilless nuclear resonance fluorescence (now known as the Mössbauer effect), the basis for Mössbauer spectroscopy.

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  1933: Physicist and crime-fighter Werner Heisenberg uses the uncertainty principle to detect and prevent crimes against mathematical constants.

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  1971: The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.

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  1982: M247 has bad feeling about big presentation in February.

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  2001: American comic book artist Gil Kane dies. Kane pioneered graphic novels with his books His Name is...Savage (1968) and Blackmark (1971).

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  2002: Anarchimedes uses Gnomon algorithm to commit crimes against mathematical constants.

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  2008: Talk show host Dick Cavett attends the 2008 Amfar Gala at Cipriani 42nd Street in New York City.

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  2018: Signed first edition of Creature unexpectedly generates cryptographic numina during otherwise routine annual steganographic checkup.