Era
20th century
4
19th century
2
2000-2099
2
21e siècle
2
21st century
2
1800-1899
1
1836-1909
1
1836-1999
1
1940-2006
1
1945-
1
1947-
1
1949-
1
1951-1979
1
1960-
1
1963-
1
1975-
1
1976-2000
1
1981-1993
1
1981-2001
1
1983-
1
1986-
1
1989-
1
1990-
1
1991
1
1991-
1
1993-2001
1
19e siècle
1
2000-
1
2003-
1
20e siècle
1
China
1
Developing countries
1
Geschichte
1
Geschichte 1850-1930
1
Geschichte 1914-1970
1
Geschichte 1970-1994
1
Geschichte 1990-2009
1
Since 2003
1
United States
1
UnitedStates
1