Era
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1843-1903
1
1843-1933
1
1846-1950
1
1848 or 1849-1947
1
1850-1908
1
1850-1915
1
1850-1937
1
1851-1922
1
1853-1935
1
1854-1936
1
1856-1932
1
1856-1940
1
1858-1910
1
1858-1923
1
1859-1900
1
1860-1957
1
1864-
1
1868-
1
1869-1934
1
1872-1959
1
1877-1969
1
1877-1972
1
1878-1923
1
1886-1974
1
1887-1986
1
1893-1955
1
1896-1958
1
1896-1976
1
18th century
1
1901-1985
1
1901-1991
1
1904-
1
1904-1983
1
1908-1994 or 5
1
1914-1934
1
1933-1945
1
1948-
1
1989-
1
21st century
1
Colonial period, ca. 1600-1775
1
Quaternary
1
Revolution, 1910-1920
1
Since 1800
1
To 1565
1
To 1789
1
To 1800
1
To 1803
1
To 1810
1
To 1821
1
active 16th century
1
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