%SP3 69 Afro-Americana 68 Slavery 53 Politics and government 26 History 18 African Americans 17 Extension to the territories 15 more ... Collectibles 12 Political aspects 11 Antislavery movements 8 Enslaved persons 8 Secession 8 Anti-slavery literature 6 Colonization 6 Description and travel 5 Justification 5 Slave trade 4 Women 4 %SP1 3 Abolitionists 3 Causes 3 Colonies 3 Foreign relations 3 Fugitive slaves 3 Legal status, laws, etc 3 Race relations 3 Sermons, American 3 Slavery in the Bible 3 Administration 2 African American authors 2 Atrocities 2 Campaign literature 2 Democratic 2 Emancipation 2 Extension to territories 2 Fiction 2 Freed persons 2 Habeas corpus 2 Law and legislation 2 Missouri compromise 2 less ...