Era
20th century
209
1900-1999
72
1945-1989
72
21st century
36
1989-
31
1981-1989
23
1946-
14
Since 1900
13
1977-1981
12
2000-2099
10
1933-1945
9
1945-
8
1909-1998
7
2017-
7
19th century
6
Since 2000
6
1913-1994
5
1969-1974
5
1900-2099
4
1951-
4
1960-1980
4
2001-2009
4
2009-2017
4
1898-1976
3
18th century
3
1919-1998
3
1924-
3
1925-2008
3
1953-1961
3
1961-1963
3
1974-1977
3
1980
3
1981-2001
3
Revolution, 1775-1783
3
1775-1783
2
1800-1899
2
1865-
2
1882-1945
2
1890-1965
2
1900 - 1999
2
1919-1933
2
1919-2011
2
1924-2018
2
1938-
2
1945-1953
2
1961-1969
2
1963-1969
2
1964
2
1968
2
1969-
2
more ...