Discovery and exploration History 320 Description and travel 224 Indians of North America 122 Spanish 113 Explorers 96 French 64 more ... Travel 45 Publications by Graduates 39 Discoveries in geography 36 Fur trade 36 Colonies 35 Missions 35 Frontier and pioneer life 28 Overland journeys to the Pacific 26 Natural history 25 Sources 21 Pioneers 18 British 15 Geology 13 Indians, Treatment of 13 American 12 Indians of South America 11 Spaniards 11 Antiquities 10 English 10 First contact with Europeans 10 Territorial expansion 10 Historiography 9 Indians of the West Indies 9 less ...