Slavery 11 African Americans 3 Black race 3 Law and legislation 3 Politics and government 3 Diplomatic and consular service, American 2 Extension to the territories 2 more ... History 2 Legal status of enslaved persons in free states 2 Missouri compromise 2 Alabama claims 1 Burr Conspiracy, 1805-1807 1 Civil rights 1 Election 1 Enslaved persons 1 Family 1 Foreign relations 1 Haymarket Square Riot, Chicago, Ill., 1886 1 Legal status of slaves in free states 1 Legal status, laws, etc 1 Presidents 1 Treaties 1 Trials 1 less ...