History Politics and government 124 Indians of South America 55 Social conditions 41 Social life and customs 40 Civilization 35 Indians of Mexico 31 more ... Description and travel 26 Historiography 25 Antiquities 22 Colonies 21 Intellectual life 21 Discovery and exploration 17 Foreign relations 16 Government relations 15 Nationalism 15 Political violence 15 Race relations 15 Blacks 14 Economic conditions 14 Spaniards 14 Emigration and immigration 13 Insurgency 13 Aztecs 12 Ethnic relations 12 Incas 12 Guerrillas 11 History and criticism 11 Political activity 11 Presidents 11 less ...