Political science 17 History 14 Politics and government 14 Philosophy 12 Democracy 10 Emigration and immigration 8 Political aspects 6 Máis ... Foreign relations 4 Immigrants 4 International cooperation 4 Social aspects 4 World politics 4 Government policy 3 Power (Social sciences) 3 Violence 3 Americanization 2 Globalization 2 International relations 2 Language 2 Liberalism 2 Liberty 2 Political corruption 2 Political leadership 2 Political participation 2 Political stability 2 Political violence 2 Populism 2 Postmodernism 2 Refugees 2 Revolutions 2 menos ...