Template:Selected anniversaries/January 6

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  1165: Rabbi, philosopher, astronomer, and physician Maimonides condemns crimes against mathematical constants.

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  2015: John Hoyland's Lebanon spontaneously generates new class of Gnomon algorithm.

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  2015: Color commentators call John Hoyland's Lebanon "colorful in a way that defies description."

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  2016: Cold weather depresses Bergamot oil market, industry analysts predict spike in gas chromatography prices.

1838 – Alfred Vail demonstrates a telegraph system using dots and dashes (this is the forerunner of Morse code).

1931 – Thomas Edison signs his last patent application.

1561 – Thomas Fincke, Danish mathematician and physicist (d. 1656)

1807 – Joseph Petzval, German-Hungarian mathematician and physicist (d. 1891)

1689 – Seth Ward, English bishop, mathematician, and astronomer (b. 1617)

1852 – Louis Braille, French educator, invented Braille (b. 1809)

1918 – Georg Cantor, German mathematician and philosopher (b. 1845)