Template:Selected anniversaries/January 4: Difference between revisions

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||1809: Louis Braille born ... educator, invented Braille. Pic.
||1809: Louis Braille born ... educator, invented Braille. Pic.


||1826: Mathematician Nicolas Fuss dies. Pic: book cover: https://commons.wikimedia.org/wiki/File:Nicolaus_Fuss.png
||1826: Mathematician Nicolas Fuss dies. His most important contribution was as amanuensis to Euler after he lost his sight. Most of Fuss's papers are solutions to problems posed by Euler on spherical geometry, trigonometry, series, differential geometry and differential equations. Pic: book cover: https://commons.wikimedia.org/wiki/File:Nicolaus_Fuss.png


File:Samuel Colt.jpg|link=Samuel Colt (nonfiction)|1847: [[Samuel Colt (nonfiction)|Samuel Colt]] sells his first revolver pistol to the United States government.
File:Samuel Colt.jpg|link=Samuel Colt (nonfiction)|1847: [[Samuel Colt (nonfiction)|Samuel Colt]] sells his first revolver pistol to the United States government.

Revision as of 05:47, 30 January 2019