History 316 Politics and government 96 Description and travel 55 Travel 50 Social life and customs 34 Manners and customs 32 History and criticism 29 Civilization 27 World War, 1914-1918 26 Law 25 World War, 1939-1945 24 Constitutional history 21 Family members 21 Foreign relations 20 African Americans 19 Women 19 Constitutional law 18 Diplomatic relations 17 Religion 17 Antiquities 15 Ethics 15 Peace 15 Philosophy 15 Social conditions 15 Indigenous peoples 14 Christianity 13 Statesmen 13 War 13 Criticism, interpretation, etc 11 English literature 11