History Politics and government Social conditions 255 Foreign relations 132 Nationalism 117 Political aspects 117 Political culture 105 Economic conditions 97 Political activity 86 Communism 85 Fascism 81 Political parties 75 World War, 1939-1945 63 National socialism 55 Influence 52 Socialism 52 Conservatism 51 Ethnic relations 51 Social aspects 51 Radicalism 47 Presidents 46 Intellectual life 44 Public opinion 44 Social life and customs 43 Race relations 42 Civilization 41 Democracy 40 Relations 39 Colonies 38 Social change 38