Columbia subject headings:
Colonization.
Europe--Politics and government--1871-1918.
World politics--19th century.
World politics--20th century.
Harvard subject headings:
Colonization.
Europe--Politics and government--1871-1918.
World politics--19th century
World politics--20th century
Princeton subject headings:
Colonization--History--18th century.
Colonization--History--19th century.
Colonization--History--20th century.
World politics--1900-1918.
World politics--To 1900.