History 77 Politics and government 22 Civilization 12 Social conditions 7 Communism 6 Foreign relations 6 Intellectual life 6 更多 ... Travel 6 World War, 1914-1918 6 Economic conditions 5 Emigration and immigration 5 Influence 5 Relations 5 Religious aspects 5 Enlightenment 4 Immigrants 4 International cooperation 4 Refugees 4 Social aspects 4 Berlin Wall, Berlin, Germany, 1961-1989 3 Capitalism 3 Catholic Church 3 Constitutional law 3 Democracy 3 Description and travel 3 Education, Higher 3 European literature 3 Europeans 3 Feudalism 3 Global Financial Crisis, 2008-2009 3 少 ...