John Wesley Powell (24 mar 1834 ano – 23 set 1902 ano)
Descrição:
John Wesley Powell was a geologist, U.S. Soldier, explorer of the American West, professor at Illinois Wesleyan University, and director of major scientific and cultural institutions.
Adicionado na linha do tempo:
Data:
24 mar 1834 ano
23 set 1902 ano
~ 68 years