History 88 Foreign relations 51 Politics and government 35 Relations 21 History and criticism 19 Criticism and interpretation 18 Motion picture producers and directors 18 more ... Motion pictures 12 Emigration and immigration 11 Social conditions 11 Motion picture actors and actresses 10 Civilization 9 Description and travel 8 Political aspects 8 Social aspects 7 Social life and customs 7 American literature 6 Economic conditions 6 Foreign economic relations 6 Mexican Americans 6 Travel 6 Economic aspects 5 Education 5 Globalization 5 Imperialism 5 Intellectual life 5 National security 5 Armed Forces 4 Biography 4 Education, Higher 4 less ...