Template:Selected anniversaries/December 13: Difference between revisions
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||1780 – Johann Wolfgang Döbereiner, German chemist, invented the Döbereiner's lamp (d. 1849) | ||1780 – Johann Wolfgang Döbereiner, German chemist, invented the Döbereiner's lamp (d. 1849) | ||
||1783 – Pehr Wilhelm Wargentin, Swedish astronomer and demographer (b. 1717) | ||1783 – Pehr Wilhelm Wargentin, Swedish astronomer and demographer (b. 1717). Pic. | ||
||1816 – Werner von Siemens, German engineer and businessman, founded Siemens (d. 1892) | ||1816 – Werner von Siemens, German engineer and businessman, founded Siemens (d. 1892) | ||
Revision as of 12:13, 17 March 2018
1516: Polymath Johannes Trithemius dies. He is remembered as a lexicographer, chronicler, cryptographer, and occultist.
1675: Mathematician and crime-fighter John Pell publishes new theory of equations with applications in the detection and prevention of crimes against mathematical constants.
1887: Mathematician George Pólya born. He will make fundamental contributions to combinatorics, number theory, numerical analysis and probability theory.