Era
1865-1950
2
1900-
2
1900-1999
1
1908-2006
1
1909-1998
1
1913-1994
1
1914-2008
1
1915-2011
1
1921-2013
1
1922-1987
1
1924-
1
1924-2018
2
1925-1968
1
1933-1945
2
1940-
1
1945-
3
1945-1989
1946-
3
1951-
11
1958-2005
1
1960-1980
2
1980-
3
1989-
22
1989-1993
3
20th century
7
Since 1865
2
Since 1900
3
Since 1945
9