Other
Politics and government
Slavery
Campaign literature
4
Controversial literature
4
History
4
Extension to the territories
3
%SP3
2
Afro-Americana
2
Democratic
2
Extension to territories
2
Abolitionists
1
African Americans
1
American
1
Annexation
1
Annexation to the United States
1
Antislavery movements
1
Campaign literature, 1856
1
Campaign literature, 1860
1
Colonization
1
Republican
1
Secession
1
Slave trade
1
Territorial expansion
1