History 412 Description and travel 146 Politics and government 128 Indians of North America 94 Economic conditions 65 International relations 57 Foreign relations 56 more ... Social conditions 52 History and criticism 42 Women 41 Womyn 41 Emigration and immigration 36 Relations 36 Discovery and exploration 29 Government relations 29 Federal government 28 Social life and customs 28 Geology 27 Manners and customs 27 Canadian literature 26 Social aspects 25 World War, 1939-1945 25 Commerce 24 Political aspects 23 Government policy 22 Civilization 21 Colonies 21 Women authors 21 Constitutional history 20 Criticism and interpretation 20 less ...