Era
20th century
453
21st century
381
2000-2099
170
To 1500
152
1900-1999
144
19th century
90
750-1258
84
-632
64
622-661
61
1945-
58
661-750
53
Ottoman Empire, 1288-1918
49
1990-
40
1997-
40
Middle Ages, 600-1500
37
17th century
34
1979-1997
34
1900-2099
30
1957-2011
29
1800-1899
28
d. 632
28
1800-
27
1980-
25
711-1516
25
980-1037
24
18th century
23
Since 1800
23
2001-2009
22
1288-1918
21
16th century
21
1998-
21
1058-1111
19
1979-
19
2001-
18
1453-1683
16
1989-
16
600-1500
16
1165-1240
15
Since 1900
15
Since 1945
14
1800-1999
13
Revolution, 1979
13
Since 1979
13
1517-
12
1975-1990
12
1988-
12
Since 1980
12
1258-1517
11
1989-2001
11
1991-
11
more ...