History 40 Foreign relations 15 Social conditions 11 Civilization 7 Politics and government 7 Economic conditions 6 Globalization 6 Social aspects 6 Social life and customs 6 International relations 5 National security 4 Relations 4 World War, 1939-1945 4 Economic policy 3 Foreign economic relations 3 Government policy 3 History and criticism 3 Philosophy 3 Political aspects 3 Study and teaching 3 Aesthetics, Japanese 2 City planning 2 Economic aspects 2 Education 2 Education, Higher 2 Educational change 2 Employment 2 English language 2 Environmental policy 2 Ethnology 2