History 77 Politics and government 30 Economic integration 17 Economic conditions 13 Foreign relations 11 Economic policy 9 Social aspects 8 Political aspects 7 Public opinion 7 Welfare state 6 Emigration and immigration 5 Government policy 5 Intellectual life 5 Nationalism 5 Political participation 5 Socialism 5 Capitalism 4 Comparative government 4 Democracy 4 Economic aspects 4 Ethnic relations 4 European federation 4 Foreign economic relations 4 Genocide 4 Group identity 4 Social conditions 4 Art, Modern 3 Causes 3 Citizenship 3 Civilization 3