Era
20th century
231
19th century
131
18th century
48
17th century
34
1945-
18
Early modern, 1500-1700
16
16th century
15
1918-1933
10
1918-1945
10
Victoria, 1837-1901
10
21st century
7
1789-1900
5
1917-1970
5
Unification, 1990
5
1801-1917
4
1861-1889
4
1882-1941
4
1990-
4
1809-1882
3
1844-1889
3
1865-1918
3
1871-1918
3
1933-1945
3
1953-1985
3
Cultural Revolution, 1966-1976
3
Puritan Revolution, 1642-1660
3
Revolution, 1775-1783
3
1552?-1599
2
1559-1789
2
1603-1649
2
1603-1714
2
1608-1674
2
1624?-1674
2
1649-1660
2
1660-1714
2
1757-1827
2
1789-1945
2
1800-1933
2
1812-1870
2
1847-1922
2
1865-
2
1865-1939
2
1905-1980
2
1917-1936
2
1949-
2
1961-1969
2
1976-
2
Colonial period, ca. 1600-1775
2
Elizabeth II, 1952-
2
George V, 1910-1936
2
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