Era
1802-1866
1
1805-1859
2
1919-
1
1924-
1
1929-2007
1
1936-2002
1
1940 February 8-
1
1942-
1
1945-
6
1945-1970
1
1945-1989
3
1946-
1
1950-
10
1951-
1
1960-1980
11
1961-
1
1969-
2
1969-1974
7
1970-
1970-1991
1
1971-
9
1971-1981
2
1980-
35
1980-2020
4
1981-
2
1981-1989
7
1981-2001
3
1988-2000
1
1989-
14
1989-1993
1
1994-
1
19th century
1
2001-
3
2001-2009
3
20th century
36
21st century
4
Middle Ages, 600-1500
1
Since 1900
17
Since 1950
2
Since 1969
1
Since 1970
31