History 293 Description and travel 133 Indians of North America 78 African Americans 55 Politics and government 52 Travel 44 Histoire 38 more ... Discovery and exploration 30 Race relations 30 Slavery 30 Descriptions et voyages 26 Census records 23 Civil rights 23 Social life and customs 19 Antiquities 17 Social conditions 17 Civil rights movements 15 Sources 15 Germans 13 Regimental histories 13 Foreign relations 12 French 12 Frontier and pioneer life 12 Campaigns 11 Colonies 11 Genealogy 11 Discoveries in geography 10 Periodicals 10 Biography 9 Extension to the territories 9 Manners and customs 9 Mounds 9 Wars 9 Bibliography 8 Découverte et exploration 8 Government relations 8 Indiens d'Amérique 8 Legislators 8 Presidents 8 Registers of births, etc 8 less ...