Columbia subject headings:
Great Britain--Politics and government--1837-1901.
Great Britain--Politics and government--20th century.
Harvard subject headings:
Great Britain--Politics and government--1837-1901
Great Britain--Politics and government--1901-
Great Britain--Politics and government--1901-1910.
Great Britain--Politics and government--1901-1936.
Princeton subject headings:
Great Britain--Politics and government--1837-1901.
Great Britain--Politics and government--1901-1910.