History 54 Economic conditions 37 Politics and government 37 Foreign relations 13 Economic policy 11 World War, 1939-1945 10 Civilization 7 Social conditions 7 Economic history 5 Intellectual life 5 Social life and customs 5 World War, 1914-1918 5 Congresses 4 Foreign economic relations 4 National socialism 4 Social aspects 4 Depressions 3 Economic aspects 3 Genocide 3 History and criticism 3 Influence 3 Monetary policy 3 Nationalism 3 Addresses, essays, lectures 2 Arab-Israeli conflict 2 Aristocracy (Social class) 2 Central planning 2 Colonies 2 Diplomacy 2 History, Military 2