African Americans 70 History 63 Freed persons 39 Slavery 37 Enslaved persons 35 Slave trade 30 Education (Higher) 23 Politics and government 21 Reconstruction (U.S. history, 1865-1877) 18 Civil rights 17 Enslavement 17 Education 15 Emancipation 13 Plantations 13 Manners and customs 11 Social conditions 11 Religion 10 Commerce 9 Periodicals 9 Black people in art 8 Colonies 8 Elections 8 Fugitive slaves 8 Slave ships 8 Trade of enslaved persons 8 African American soldiers 7 Enslaved women 7 Kings and rulers 7 Theater 7 Antislavery movements 6