Era
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1882-1941
3
1885-1972
3
1894-1952
3
1903-1983
3
1906-1999
3
1914-1975
3
1915-1991
3
1915-2009
3
1916-
3
1917-1945
3
1926-2022
3
1945-1964
3
1949-
3
1949-1976
3
1961-1971
3
1966-1998
3
1970-
3
1979-
3
1979-1990
3
1991-2016
3
1998-
3
Civil War, 1861-1865
3
German occupation, 1940-1945
3
Medieval, 500-1500
3
Revolution, 1917-1921
3
Since 1960
3
Since 1975
3
Since 1980
3
Since 1997
3
Since 2008
3
To 1933
3
1500-1699
2
1564-1616
2
1623-1687
2
1694-1746
2
1712-1799
2
1728-1797
2
1743-1794
2
1770-1831
2
1783-1856
2
1790-1864
2
1800-1837
2
1800-1901
2
1806-1873
2
1809-1882
2
1815-1861
2
1817-1862
2
1819-1900
2
1822-1909
2
1824-1948
2
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