Slave trade 2,777 Slavery 1,143 History 773 Antislavery movements 379 Colonies 251 Commerce 217 Slaves 170 more ... Social conditions 144 Law and legislation 127 Description and travel 100 Slavery and the church 86 Emancipation 74 Abolitionists 68 African Americans 65 Economic conditions 59 Justification 59 Slave traders 58 Colonization 54 Sugar trade 54 Enslaved persons 50 Race relations 50 Economic aspects 47 Speeches, addresses, etc., English 43 Black people 36 Slave trade in literature 35 Politics and government 33 Social aspects 33 Blacks 32 History and criticism 32 Slavery in literature 30 less ...