Template:Selected anniversaries/September 22

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  1547: Philologist, mathematician, astronomer, and poet Philipp Nicodemus Frischlin born. His prolific and versatile genius will produce a great variety of works, but his reckless life and libelous letters will lead to imprisonment.

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  1624: Math photographer Cantor Parabola publishes study of Renaissance-era crimes against mathematical constants.

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  1974: Physicist Winfried Otto Schumann dies. He predicted the existence of Schumann resonances, a series of low-frequency resonances caused by lightning discharges in the atmosphere.

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  1976: Mathematician and crime-fighter Shoshichi Kobayashi uses transformation groups of geometric structures to detect and prevent crimes against mathematical constants.

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  2012: Mathematician, author, activist, and academic Irving Adler dies. He was a plaintiff in the McCarthy-era case Adler vs. Board of Education.

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  2013: Signed first edition of Skip Digits, Conductor stolen; US Treasury investigators say money trail leads to Baron Zersetzung.