History 310 Colonies 76 Politics and government 62 Economic conditions 60 Description and travel 59 History and criticism 53 Relations 53 more ... Foreign relations 45 Civilization 44 Study and teaching 42 Commerce 39 International relations 39 Diplomatic relations 36 Economic history 35 Economic policy 34 Women 33 Education 31 Social conditions 31 Antiquities 30 Social aspects 30 British colonies 27 In literature 25 Literature 24 Travel 24 Religion 21 Economic aspects 17 Social life and customs 17 Voyages and travels 17 Emigration and immigration 16 World War, 1939-1945 16 less ...