Library of Congress
Loc: Mediterranean World on the Eve of Conquest
The Library of Congress provides an essay on the reasons for exploration during the 15th century.
University of Houston
University of Houston: Engines of Our Ingenuity: No. 1240: Northwest Passage
An article on the history of the search for the Northwest Passage. The discussion focuses on the reality that there is no Passage - only a history of brave people suffering incredible hardships to learn that the region was impassable...
University of Calgary
University of Calgary: Africa the Search for Gold and Slaves
Historical background of the reasons for European exploration of Africa. Tutorial Links to further European trade and exploration.