History 1,818 Politics and government 1,375 Indians of South America 1,020 Foreign relations 331 Boundaries 328 Social conditions 310 Government relations 239 more ... Aymara Indians 235 Social life and customs 232 Economic conditions 217 Antiquities 196 Guerrillas 175 Presidents 172 Description and travel 140 Political activity 129 Civilization 107 Land tenure 100 Chaco War, 1932-1935 93 Biography 87 Ethnic identity 80 Social movements 78 Education 72 Access to the sea (International law) 65 International relations 64 Histoire 59 Indigenous peoples 59 War of the Pacific, 1879-1884 59 Quechua Indians 57 Missions 55 Revolutionaries 54 less ...