History 719 Politics and government 489 Foreign relations 225 Diplomatic relations 221 Economic conditions 192 Social conditions 168 Economic policy 123 Social aspects 116 Political aspects 99 Women 86 Psychological aspects 77 Psychology 70 Education 67 Government policy 67 African Americans 65 Presidents 64 Law and legislation 63 Communism 60 Economic aspects 53 World War, 1939-1945 53 History and criticism 49 Democracy 47 Race relations 47 Civilization 43 Mass media 42 Public opinion 40 Religious aspects 40 Communication in politics 38 Ethnic relations 37 Prevention 37