Influence Politics and government History 199 Foreign relations 51 Social conditions 42 Political and social views 40 Political aspects 40 Political culture 37 Presidents 30 Social aspects 22 September 11 Terrorist Attacks, 2001 16 Democracy 15 Intellectual life 15 Political activity 15 World War, 1914-1918 15 Civilization 14 Arab-Israeli conflict 12 Public opinion 12 World War, 1939-1945 12 Economic conditions 11 Philosophy 10 Statesmen 10 Causes 9 Cold War 9 Collective memory 9 Economic policy 9 Political leadership 9 Communism 8 Ethnic relations 8 Military policy 8