History 135 Politics and government 36 Civilization 20 Social aspects 16 Social conditions 14 Emigration and immigration 13 Intellectual life 13 more ... Relations 13 Foreign relations 12 Economic conditions 11 History and criticism 11 Court and courtiers 9 Travel 9 Description and travel 8 Education, Higher 8 Philosophy 8 Economic integration 7 Enlightenment 7 European literature 7 Social life and customs 7 Civilization, Medieval 6 Communism 6 Immigrants 6 Influence 6 International cooperation 6 Kings and rulers 6 Religious aspects 6 Socialism 6 Universities and colleges 6 Catholic Church 5 less ...