Era
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1945-1989
4
1947-
4
1960-1980
4
1963-1969
4
1969-
4
1976-2000
4
1977-
4
1979-
4
1989-
4
2002-
4
German occupation, 1941-1944
4
Medieval period, 1066-1485
4
Primitive and early church, ca. 30-600
4
Revolution, 1917-1921
4
War of 1812
4
active 14th century B. C.
4
1367-1400
3
13th century
3
1517-1648
3
168 B.C.-135 A.D.
3
1735-1826
3
1741-1801
3
1767-1845
3
1797-1851
3
1819-1861
3
1820-1906
3
1847-1931
3
1860-1890
3
1861-1865
3
1865-1936
3
1867-1959
3
1868-1918
3
1871-1918
3
1884-1960
3
1894-1971
3
1897-1993
3
1901-1966
3
1904-1989
3
1906-1989
3
1907-1966
3
1911-1979
3
1912-1977
3
1915-1985
3
1918-1933
3
1921-
3
1923-1991
3
1925-1968
3
1928-
3
1932-1990
3
1941-1955
3
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