Era
20th century
584
19th century
356
1945-
324
21st century
112
18th century
109
1980-
73
1960-
66
17th century
63
1960-1980
44
1933-1945
42
1989-
38
16th century
33
1918-1933
33
1970-
30
1990-
29
1976-
26
1991-
26
1918-1945
23
1975-
20
2000-
19
1949-
18
1961-1969
18
Victoria, 1837-1901
17
1969-
16
1917-
15
1947-
15
1979-
15
1994-
15
1945-1989
14
1997-
14
Elizabeth II, 1952-
13
To 1865
13
1871-1918
11
1945-1991
11
1949-1976
11
1971-
11
2002-
11
Medieval period, 1066-1485
11
Unification, 1990
11
1789-1900
10
1801-1917
10
1837-1901
10
1945-1964
10
1982-
10
1995-
10
1979-1997
9
British occupation, 1765-1947
9
George VI, 1936-1952
9
1865-1918
8
1936-1953
8
more ...