Slavery 152 Politics and government 74 Extension to the territories 49 Tariff 29 Compromise of 1850 23 History 21 Law and legislation 10 more ... Petition, Right of 9 %SP3 8 Afro-Americana 8 Antislavery movements 7 Enslaved persons 7 Secession 7 Emancipation 6 Justification 6 Missouri compromise 5 Statehood (American politics) 5 Campaign literature 4 Currency question 4 Finance, Public 4 Free trade 4 Protectionism 4 Slave trade 4 Speeches in Congress 4 States' rights (American politics) 4 Abolitionists 3 Banks and banking 3 Causes 3 Debts, Public 3 Economic conditions 3 Independent treasury 3 Military pensions 3 Oregon question 3 Territories and possessions 3 African Americans 2 Centennial celebrations, etc 2 Confiscations and contributions 2 Controversial literature 2 Economic policy 2 Finance 2 less ...