Era
1882-1945
2
1884-1972
1
1917-1979
1
1918-1945
1
1924-
1
1930-
2
1932
1
1933-1945
2
1942-
1
1945-
2
1945-1953
1
1945-1960
1
1945-1989
1
1946-
2
1947-
1
1952-
1
1959-
1
1959-1990
1
1960-
1
1960-1988
1
1971-
1
1971-1981
1
1977-1981
1
1980
2
1981-1989
1
1981-1993
1
1984
1
1989-
1
1990-
2
1991-
1
1993-
5
1993-2001
2
1996
1
2000
1
2001-
3
2001-2009
5
2004
1
2008
4
2009-
3
2009-2017
4
2010
1
2016
2
20th century
4
21st century
2
Geschichte 2008
1
Since 1959
1
Since 1960
1
Since 1991
1
Since 1993
3
Since 2009
1