Friedrich Karl Christian Ludwig Büchner (; German: [ˈbyːçnɐ]; 29 March 1824 – 30 April 1899) was a German philosopher, physiologist and physician who became one of the exponents of 19th-century scientific materialism.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.