Era
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1889-1959
4
1900-1969
4
1905-1983
4
1922-1969
4
1930-2002
4
1950-
4
1961-1970
4
2000
4
2011-2020
4
From 230 to 280 million years ago
4
From 65 to 140 million years ago
4
Revolution, 1923-1924
4
Since 1946
4
Since 1951
4
Spanish colony, 1565-1763
4
To 1540
4
To 1800
4
War of Independence, 1810-1822
4
1470-1565
3
1540 - 1861
3
1540-1861
3
1540-1899
3
1549?-1624
3
1600-1799
3
1643-1687
3
1643-1704
3
1717-1779
3
1731-1787
3
1786-1866
3
1792-1853
3
1810 or 1811-1889
3
1829-1907
3
1829-1919
3
1837-1927
3
1846-1999
3
1857-1900
3
1859-1944
3
1865-
3
1867-1999
3
1873-1952
3
1882-1910
3
1900-2000
3
1902-1974
3
1910-1988
3
1922-
3
1929
3
1931-
3
1935-
3
1936-1939
3
1938-
3
more ...