Template:Selected anniversaries/May 13: Difference between revisions

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||1885 – Friedrich Gustav Jakob Henle, German physician, pathologist, and anatomist (b. 1809)
||1885 – Friedrich Gustav Jakob Henle, German physician, pathologist, and anatomist (b. 1809)
||Ferdinand Minding (d. May 13, 1885) was a German-Russian mathematician known for his contributions to differential geometry. Minding considered questions of bending of surfaces and proved the invariance of geodesic curvature. He studied ruled surfaces, developable surfaces and surfaces of revolution and determined geodesics on the pseudosphere. Pic.


||1888 – With the passage of the Lei Áurea ("Golden Law"), Empire of Brazil abolishes slavery.
||1888 – With the passage of the Lei Áurea ("Golden Law"), Empire of Brazil abolishes slavery.

Revision as of 10:50, 24 March 2018