Title: Explorers
Subjects: Explorers, Discoveries in geography, Discoveries (in geography)
People: Christopher Columbus, Robert O'Hara Burke (1821-1861), William John Wills (1834-1861), Charles Montagu Doughty (1843-1926), Alexander von Humbolt (1769-1859), Henry M. Stanley (1841-1904), Francisco Pizarro (ca. 1475-1541), Mary Henrietta Kingsley (1862-1900), Roald Amundsen (1872-1928), Jedediah Strong Smith (1799-1831), James Cook (1728-1779)