Politics and government 77 Foreign relations -- 42 History -- 41 Economic conditions 38 Politics and government -- 36 History 33 Economic conditions -- 22 more ... Social conditions 22 Economic policy 21 Foreign relations 21 World War, 1939-1945 -- 20 Foreign economic relations -- 19 Campaigns -- 17 Biography -- 14 Congresses 9 Commerce -- 8 Commercial policy 8 Prime ministers -- 8 Cabinet officers -- 7 Congresses -- 7 Description and travel 7 Economic policy -- 7 Population 7 Diplomats -- 6 Elections -- 6 Free trade -- 6 Military policy 6 Relations -- 6 Social conditions -- 6 Civilization 5 less ...