Era
1986
10
20th century
9
1991
6
20e siècle
6
1993
5
21st century
5
19th century
4
1900-1999
3
1972-
3
2000
3
2000-2099
3
2011
3
21e siècle
3
1867-1959
2
1955-
2
1959-
2
1983
2
1989
2
1992
2
19e siècle
2
2010
2
10.06.1983
1
1800-1899
1
1800-1980
1
1800-1999
1
1841-1913
1
1900 - 1999
1
1929-
1
1939-1975
1
1948-
1
1958-
1
1980
1
1981
1
1982
1
1985-1991
1
1987
1
1989-
1
1990
1
1994
1
1996
1
1999
1
2001
1
2013
1
Belarus
1
Environmental aspects
1
Geschichte 1500-2009
1
Geschichte 1800-1900
1
Geschichte 1800-1990
1
Geschichte 1860-1991
1
Geschichte 1986
1
more ...