Other
Extension to the territories
Slavery
24
Politics and government
14
History
6
Statehood (American politics)
5
Campaign literature
4
Compromise of 1850
3
Powers and duties
3
Law
2
Law and legislation
2
Missouri compromise
2
Republican
2
States' rights (American politics)
2
%SP3
1
Abolitionists
1
Afro-Americana
1
Annexation
1
Annexation to the United States
1
Campaiagn literature, 1848
1
Civil rights
1
Controversial literature
1
Democratic
1
Extention to the territories
1
Free-soil
1
Justification
1
Slavery in the Unites States
1
Speeches in Congress
1
Squatter sovereignty
1
Territories and possessions
1