Other
Slavery
Politics and government
11
Extension to the territories
5
Campaign literature
4
Campaign literature, 1856
3
Democratic
3
Republican
3
%SP3
1
Abolitionists
1
Afro-Americana
1
American
1
Controversial literature
1
Foreign relations
1
History
1
Justification
1
Law
1
Political aspects
1
Slave trade
1
Speeches in Congress
1
Territories and possessions
1