History 365 African Americans 194 Indians of North America 144 Juvenile literature 77 Histoire 76 Biography 67 Presidents 67 lisää ... Civil rights 57 Social life and customs 53 Race relations 48 Women 44 Noirs américains 43 Civil rights movements 37 Slavery 35 Discovery and exploration 34 Politics and government 31 Civil rights workers 30 Explorers 29 African American women 25 Statesmen 25 Underground Railroad 23 Enslaved persons 22 JUVENILE NONFICTION 22 Legislators 21 Social conditions 21 Antislavery movements 20 Abolitionists 19 Droits 18 Generals 18 Native Americans 18 vähemmän ...