Slavery 4,250 History 948 Controversial literature 662 Politics and government 600 African Americans 420 Antislavery movements 415 Extension to the territories 308 more ... Slavery and the church 283 Slaves 216 Slave trade 192 Abolitionists 161 Justification 159 Social conditions 158 Speeches, addresses, etc., American 153 Emancipation 124 Sermons, American 122 Race relations 115 Campaign literature 105 Colonization 103 Fugitive slaves 96 Slavery in the Bible 95 Law and legislation 75 Causes 69 Compromise of 1850 66 Societies, etc 66 Enslaved persons 65 Secession 63 Description and travel 58 Political aspects 57 Missouri compromise 53 less ...