Carl Friedrich Philipp von Martius (17 April 1794 – 13 December 1868) was a German botanist and explorer. Between 1817 and 1820, he traveled 10,000 km through Brazil while collecting botanical specimens. In 1840 he became the founding editor of Flora Brasiliensis, a comprehensive flora of Brazil, which was not completed until 1906, 62 years after his death.
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.