Historical Period
21st century
13
1945-
8
20th century
8
2000-
5
1960-
4
1976-2000
3
1990-
3
19th century
3
1947-
2
1971-1990
2
1976-
2
1979-
2
1985-
2
1644-1912
1
16th century
1
18th century
1
1945-1966
1
1949-
1
1957-1979
1
1958-
1
1960-1988
1
1976-2002
1
1979-2001
1
1980-2020
1
1981-2001
1
1982-
1
30 B.C.-476 A.D.
1
Since 1949
1
To 1500
1