Era
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1910-2004
2
1913-1960
2
1917-
2
1917-1928
2
1918-1933
2
1918-1990
2
1924-1993
2
1925-1967
2
1929
2
1940-2011
2
1945-1971
2
1945-1983
2
1946-1970
2
1948-
2
1948-1980
2
1952-
2
1953-2004
2
1955-1983
2
1956-
2
1961-1971
2
1971-1981
2
1975-2008
2
1980-2020
2
1983-
2
1988-
2
1993-
2
1997-
2
2005-2015
2
2008 - 2009
2
21e siècle
2
Anglo-Saxon period, 449-1066
2
Civil War, 1861-1865
2
Confederation, 1867
2
Medieval, 500-1500
2
Qing dynasty, 1644-1912
2
Since 1947
2
Since 1949
2
Since 1960
2
Since 1982
2
Since 1993
2
Since 1997
2
To 1775
2
To 1899
2
b. 1862
2
-1928
1
-2003
1
1400-1599
1
1485-
1
1517-1882
1
1564-1616
1
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