Foreign relations -- 155 Politics and government -- 108 History -- 66 Politics and government 54 History 48 Colonies -- 47 Biography -- 26 more ... Prime ministers -- 18 Economic conditions -- 15 Economic policy -- 15 World politics -- 14 Economic conditions 13 Military policy 13 Social conditions -- 9 World War, 1939-1945 -- 9 Yearbook 9 Yearbook -- 9 Administration 8 Conservatism -- 8 Diplomatic history 8 Foreign relations 8 Colonies 7 Foreign relations administration 7 Imperialism -- 7 Social conditions 7 Statistics 7 Commerce -- 6 Commonwealth countries -- 6 Government policy -- 6 Public opinion -- 6 less ...