History 356 Indians of North America 210 African Americans 161 Periodicals 154 Antiquities 150 Societies, etc 106 Foreign relations 82 more ... Politics and government 71 Indians 70 Ethnology 58 Environmental aspects 50 Education 48 Statistics 45 Histoire 40 Government relations 37 Civilization 35 Societies 35 Race relations 34 Research 34 Biography 33 Slavery 33 Social conditions 33 Diplomatic relations 32 Archaeology 31 Directories 31 World politics 29 Relations 28 Economic conditions 26 Jews 26 Antislavery movements 25 less ...