Era
20th century
752
19th century
413
1945-
337
21st century
165
18th century
114
1980-
84
1960-
70
17th century
68
1933-1945
49
1960-1980
49
1989-
43
16th century
37
1918-1933
35
1990-
34
1918-1945
33
1970-
30
1991-
27
1976-
26
1969-
23
1975-
22
2000-
22
Victoria, 1837-1901
20
1947-
19
1949-
19
1961-1969
19
1945-1989
17
1994-
17
1917-
15
1979-
15
1801-1917
14
1837-1901
14
1945-1991
14
1997-
14
Elizabeth II, 1952-
14
To 1865
14
1789-1900
13
1871-1918
13
1971-
13
1995-
13
1945-1964
12
2002-
12
Unification, 1990
12
1949-1976
11
1982-
11
British occupation, 1765-1947
11
Medieval period, 1066-1485
11
1865-1918
10
1945-1990
10
George VI, 1936-1952
10
1936-1945
9
more ...