History 1,256 Colonies 791 Discovery and exploration 564 Discoveries in geography 468 Indians 206 Spanish 205 Indians of North America 190 History and criticism 180 Administration 178 Antiquities 168 Politics and government 144 Civilization 142 Slavery 130 Description and travel 105 Spanish colonies 103 Colonization 91 British colonies 89 Indians, Treatment of 85 Social conditions 85 Black people 83 Commerce 83 In literature 78 Race relations 77 Historiography 74 British 70 Social aspects 70 Slave trade 65 Relations 64 Ethnic relations 62 Foreign relations 62 Religion 61 Social life and customs 57 First contact with other peoples 56 International relations 56 Explorers 55 Government relations 55 Indians of South America 55 African Americans 53 Imperialism 51 Economic conditions 49 French 48 Intellectual life 48 Missions 46 American literature 45 Political aspects 45 Ethnology 40 Norse 39 Indigenous peoples 38 Literatures 36 Ethnicity 35 Influence 33 Enslaved persons 32 Ethnic identity 31 Voyages and travels 31 Natural history 29 Indian art 28 African diaspora 27 Africans 27 Antislavery movements 27 Causes 27 Histoire 27 Emigration and immigration 26 French colonies 26 Languages 26 Defenses 25 Literature 25 Pan-Americanism 25 Religious aspects 25 African influences 24 Frontier and pioneer life 24 National characteristics, American, in literature 24 Travel 24 Art 23 Economic policy 23 English literature 23 Free trade 23 Public opinion 23 Legal status, laws, etc 22 Law and legislation 21 Manners and customs 21 Origin 21 First contact with Europeans 20 Knowledge and learning 20 Migrations 20 Women 20 Archaeology 19 Economic aspects 19 Indians of Mexico 19 Philosophy 19 Prehistoric peoples 19 Race identity 19 Sources 19 Spaniards 19 Christianity 18 Civil rights 18 Slave rebellions 18 American influences 17 Church history 17 Human rights 17 Nationalism 17