Era
1993-
149
21st century
132
20th century
104
1979-
44
1900-1999
38
Since 1993
34
1973-1993
29
1967-1993
27
1948-1967
22
1948-
21
1945-
20
1917-1948
14
2000-2099
13
Since 1900
10
1886-1973
9
1913-1992
9
1860-1904
7
Since 1945
7
1923-2016
6
1975-1990
5
Since 1967
5
1898-1978
4
1900-2099
4
1952-1970
4
1989-
4
Since 1948
4
1906-1975
3
1922-
3
1922-1995
3
1967-1973
3
1990-
3
1993-2001
3
1997-
3
Since 1979
3
To 70 A.D.
3
1775-1783
2
1775-1865
2
1783-1865
2
1917-1963
2
1924-
2
1937-2006
2
1939-1945
2
1945-1990
2
1946-
2
1952-1999
2
1958-
2
1961-1963
2
1968-1998
2
1971-2000
2
1978-1989
2
more ...