Politics and government 207 Social conditions 50 Economic conditions 37 Foreign relations 22 History 16 Economic policy 14 Communism 8 Congresses 8 Civilization 7 Relations 7 Social classes 7 Foreign economic relations 6 Armed Forces 5 Revolutions 5 Democracy 4 Political activity 4 Socialism 4 Bureaucracy 3 Colonies 3 Pan-Americanism 3 World politics 3 Administration 2 Authoritarianism 2 Case studies 2 Civil supremacy over the military 2 Commerce 2 Corporate state 2 Description and travel 2 Dictators 2 Economic assistance 2