History 250 History and criticism 59 Social conditions 54 Politics and government 47 Social aspects 46 Criticism and interpretation 31 Philosophy 25 more ... Law and legislation 22 Race relations 22 Religious aspects 22 Economic conditions 20 Political aspects 20 Economic history 19 Education 19 Influence 19 Social life and customs 19 Diplomatic relations 18 Foreign relations 18 Government policy 18 Influence (Literary, artistic, etc.) 18 Economic aspects 16 Manners and customs 15 Indians of North America 14 Moral and ethical aspects 14 African Americans 13 Religion 13 World War, 1939-1945 13 Christianity 12 Motion pictures 12 Civilization 11 less ...