Columbia subject headings:
Compromise of 1850.
Slavery--United States--History.
United States--Politics and government--1845-1861.
Harvard subject headings:
Compromise of 1850.
Slavery--United States--History
United States--Politics and government--1845-1861.
Princeton subject headings:
Compromise of 1850.
Slavery--United States--History.
United States--Politics and government--1845-1861.