History 1,026 Politics and government 414 Indians of South America 164 Social life and customs 141 Social conditions 123 Civilization 121 Description and travel 105 Indians of Mexico 88 Antiquities 79 Foreign relations 75 Intellectual life 63 Religion 59 Economic conditions 58 Historiography 53 Government relations 50 Relations 43 Colonies 39 History and criticism 39 Presidents 39 Blacks 38 Archaeological museums and collections 35 Travel 32 Aztecs 31 Indian art 31 Emigration and immigration 29 Discovery and exploration 28 Philosophy 28 Political violence 28 Race relations 28 Social aspects 26