History 220 Social aspects 64 History and criticism 55 Politics and government 52 Social conditions 47 Government policy 30 Political aspects 30 Women 26 Foreign relations 23 Law and legislation 23 Philosophy 22 Religious aspects 22 Criticism and interpretation 20 Social life and customs 20 Economic aspects 18 Moral and ethical aspects 18 Political activity 18 Race relations 17 Democracy 16 Economic conditions 16 Jews 16 Emigration and immigration 14 Historiography 14 Indians of North America 14 Influence 14 African Americans 13 American poetry 13 Education 13 Immigrants 13 Study and teaching 13