Era
20th century
104
1945-
36
19th century
27
1945-1989
19
21st century
12
1989-
10
18th century
5
16th century
3
17th century
2
1894-1986
2
1950-
2
1492-1648
1
1648-1715
1
1789-1815
1
1789-1900
1
1903-1950
1
1912-1949
1
1917-1936
1
1923-
1
1928-
1
1970-
1
1975-1985
1
1990-
1
20TH CENTURY
1
Edward VII, 1901-1910
1
Elizabeth II, 1952-
1
Revolution
1
Revolution, 1789-1799
1
Revolution, 1917-1921
1
Victoria, 1837-1901
1