Discovery and exploration 52 Discoveries in geography 46 Spanish 31 Description and travel 27 History 25 History and criticism 14 Indians of North America 14 more ... Natural history 14 Indians of South America 12 Travel 11 Explorers 10 Historiography 10 Colonies 7 Indians 6 Indians of Mexico 6 Indians, Treatment of 6 Voyages and travels 5 British 4 Imperialism 4 Indians of the West Indies 4 Tupinamba Indians 4 First contact with other peoples 3 Historians 3 Military art and science 3 Social life and customs 3 Spanish colonies 3 Administration 2 In literature 2 Indians of Central America 2 Literature and history 2 less ...