History African Americans 15 Enslaved persons 12 Slavery 12 Race relations 11 Social conditions 9 Politics and government 7 more ... Indians of North America 6 Social aspects 6 Campaigns 5 Fugitive slaves 5 Influence 5 Homes and haunts 4 Plantation life 4 Political and social views 4 Biography 3 Causes 3 Civilization 3 Families 3 First contact with other peoples 3 Political aspects 3 Powhatan Indians 3 Presidents 3 Religion 3 Social classes 3 African American abolitionists 2 Antiquities 2 Antislavery movements 2 Colonies 2 Conservation and restoration 2 less ...