Template:Selected anniversaries/December 20: Difference between revisions

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||Johann Christian Martin Bartels (b. 20 December [O.S. 7 December] 1836) was a German mathematician. He was the tutor of Carl Friedrich Gauss in Brunswick and the educator of Lobachevsky at the University of Kazan.
||Johann Christian Martin Bartels (b. 20 December [O.S. 7 December] 1836) was a German mathematician. He was the tutor of Carl Friedrich Gauss in Brunswick and the educator of Lobachevsky at the University of Kazan.
||Paul Tannery (20 December 1843 – 27 November 1904) was a French mathematician and historian of mathematics. He was the older brother of mathematician Jules Tannery, to whose Notions Mathématiques he contributed an historical chapter.


||1860 – South Carolina becomes the first state to attempt to secede from the United States.
||1860 – South Carolina becomes the first state to attempt to secede from the United States.

Revision as of 19:18, 4 November 2017