Era
20th century
78
1900-1999
35
21st century
24
2000-2099
10
1991-
9
1918-1945
8
1933-1945
7
1945-
7
1969-1974
7
1958-
6
19th century
6
Since 1991
6
1839-1937
5
1941-1979
5
1946-
5
1960-
5
2001-2009
5
2003-
5
1945-1989
4
1949-
4
1970-1982
4
1970-1994
4
1971-1981
4
1994-
4
1800-1999
3
1913-1994
3
1918-1958
3
1924-
3
1932-
3
1951-
3
1952-
3
1975-1985
3
1989-
3
2001-
3
Revolution, 1910-1920
3
Since 1900
3
Since 1958
3
1842-1909
2
1856-1935
2
1883-1930
2
1890-1969
2
1902-1969
2
1913-2006
2
1935-
2
1948-
2
1951-1969
2
1953-1961
2
1969-
2
1970 - 1994
2
1970-
2
more ...