History 731 African Americans 339 Indians of North America 335 Politics and government 244 Antiquities 188 Social conditions 142 Foreign relations 136 more ... Penn dissertations 121 Slavery 111 Histoire 108 Social life and customs 88 Race relations 81 Education 78 Ethnic identity 67 Economic conditions 59 Research 58 American Civilization 57 Noirs américains 56 Study and teaching 54 Cultural assimilation 53 Government relations 46 Psychology 45 Civil rights 44 Religion 42 Emigration and immigration 41 Antislavery movements 40 Presidents 37 Attitudes 36 Excavations (Archaeology) 33 Politique et gouvernement 33 less ...