Columbia subject headings:
Antislavery movements--United States.
Southern States--Civilization--1775-1865.
United States--History--Civil War, 1861-1865--Causes.
United States--Social conditions--To 1865.
Harvard subject headings:
Antislavery movements--United States
Southern States--Civilization--1775-1865.
United States--History--Civil War, 1861-1865--Causes.
United States--Social conditions--To 1865.
Princeton subject headings:
Antislavery movements--United States.
Southern States--Civilization--1775-1865.
United States--History--Civil War, 1861-1865--Causes.
United States--Social conditions--To 1865.