Columbia subject headings:
African Americans--History--To 1863.
Black people--America--History.
Slavery--America--History--18th century.
Slavery--United States--History--18th century.
United States--History--Revolution, 1775-1783--Influence.
Harvard subject headings:
African Americans--History--To 1863
Black people--America--History
Slavery--America--History--18th century.
Slavery--United States--History--18th century
United States--History--Revolution, 1775-1783--Influence
Princeton subject headings:
African Americans--History--To 1863.
Black people--America--History.
Slavery--America--History--18th century.
Slavery--United States--History--18th century.
United States--History--Revolution, 1775-1783--Influence.