History 412 Politics and government 124 Civilization 93 Description and travel 84 Economic conditions 42 International relations 39 Philosophy 39 more ... Social conditions 39 Foreign relations 37 Social life and customs 37 Theater 34 Manners and customs 29 Pan-Americanism 29 Antiquities 28 Education 25 Indians of Mexico 24 Art 23 Relations 20 Intellectual life 17 Land tenure 17 Constitutional law 16 Discoveries in geography 16 Discovery and exploration 16 Agriculture 15 Architecture 15 Colonies 15 History and criticism 15 Indians of South America 15 Legends 15 Economic policy 13 less ...