Era
20th century
433
19th century
221
1945-
153
21st century
119
1960-1980
66
1981-2001
58
1980-2020
51
18th century
50
1981-1993
47
1818-1883
44
1918-1945
41
1971-1981
37
1989-
36
1945-1989
34
1933-1945
33
17th century
32
1993-2001
30
To 1865
28
2001-2009
26
1929
25
1976-2000
22
1990-
22
1865-1918
20
2009-
20
2000-
19
1991-
13
1723-1790
12
1981-1989
12
Medieval, 500-1500
12
1918-
11
1961-1971
11
1993-
11
1883-1946
10
1949-
10
1960-
10
Middle Ages, 500-1500
10
1918-1933
9
1927-1993
9
1949-1976
9
1955-
9
1980-1993
9
1858-1917
8
1864-1920
8
1895-1972
8
1909-2005
8
1945-1964
8
1945-1991
8
Modern period, 1600-
8
To 1500
8
1066-1485
7
more ...