
...
Unknown
Prussian aristocrat Alexander von Humboldt (1769-1859) was an indefatigable naturalist and geographer, the first to describe South and Central America scientifically. Carl Gauss (1777-1855) was a mathematician and physicist of genius whose work in number theory, differential geometry and magnetism shaped those fields …
259640154865824877152496882248992715343570725006261089110765