History 47,639 Politics and government 23,985 History and criticism 12,581 Economic conditions 11,367 Social conditions 9,325 Criticism and interpretation 8,067 Indians of South America 6,404 more ... Economic policy 5,166 Foreign relations 4,036 Antiquities 4,016 Social life and customs 3,827 Civilization 3,528 Spanish language 3,259 Women 3,055 Social aspects 3,022 Description and travel 2,997 Education 2,961 Economic aspects 2,795 Indians of Mexico 2,533 Political activity 2,392 Congresses 2,377 Agriculture 2,297 Biography 2,277 Philosophy 2,245 Spanish literature 2,153 Sources 1,979 Democracy 1,904 Law and legislation 1,874 Social policy 1,720 Spanish 1,676 less ...