History 468 Politics and government 315 Foreign relations 259 Economic conditions 199 Social conditions 116 Social aspects 108 Economic policy 106 Relations 89 Motion pictures 87 Description and travel 86 Civilization 83 Foreign economic relations 83 Government policy 70 Commerce 69 Women 64 Political aspects 59 History and criticism 55 Religion 55 Colonies 52 Economic aspects 50 Social life and customs 50 National security 49 Study and teaching 48 Emigration and immigration 47 Financial crises 47 Strategic aspects 45 World War, 1939-1945 44 Economic development 42 Security, International 41 Islam 40