History 300 Politics and government 71 Philosophy 70 History and criticism 56 Social conditions 48 Social aspects 47 Criticism and interpretation 35 hơn ... Political aspects 30 Social life and customs 28 Political science 27 Women 25 Philosophers 22 Foreign relations 21 Description and travel 20 Education 20 Economic conditions 19 Study and teaching 18 Education, Higher 16 Emigration and immigration 16 Relations 16 Science 16 Intellectual life 15 Mexican Americans 15 Research 15 Young women 15 Civilization 13 Economic aspects 13 Globalization 13 Indians of South America 13 Antiquities 12 ít hơn ...