Slavery 339 Slave trade 278 History 208 Fugitive slaves 167 African Americans 104 Antislavery movements 85 Enslaved persons 81 more ... Underground Railroad 51 Slave labor 45 Slaves 42 Slave rebellions 41 Esclaves 40 Slave records 39 Commerce 37 Emancipation 37 Registers of births, etc 37 Abolitionists 36 Histoire 36 Race relations 36 Recording and registration 36 Social conditions 27 Politics and government 26 Slavery and the church 26 Legal status, laws, etc 22 Slave-trade 20 Controversial literature 19 Colonization 17 Esclavage 17 Law and legislation 17 Esclaves fugitifs 16 Fugitive slave law of 1850 16 Noirs américains 16 Afro-Americana 15 Plantation life 14 Political aspects 14 Condition of slaves 13 Society of Friends 13 Economic conditions 12 Relations with slaves 12 Justification 11 less ...