Era
20th century
30
21st century
24
2000-2099
16
1900-1999
13
1900 - 1999
9
1945-
9
1990-
9
19th century
8
1980-
7
1989-
7
2000 - 2099
7
Medieval, 500-1500
7
Since 1945
7
1991-
6
1994-
6
Geschichte
6
1980-2020
5
Since 1980
5
Since 1989
5
Sozialgeschichte 500-1500
5
1800-1899
4
1947-
4
20e siècle
4
Since 1900
4
Since 1990
4
Since 1991
4
To 1500
4
1800-1999
3
1900-2099
3
1960-
3
1980-1989
3
1985-
3
Since 1947
3
Since 1960
3
Since 2000
3
18th century
2
1945-1989
2
1945-1990
2
1970-
2
1980-1989-
2
1981-1990
2
1985-1991
2
1985-2002
2
1990
2
1995-
2
2000-
2
20e siècle
2
21e siècle
2
476-1492
2
476-1500
2
more ...