Era
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1900 - 1999
5
2022
5
Since 1964
5
1846-1921
4
1909-1955
4
1964-
4
2002-
4
Precambrian
4
Since 2000
4
1822-1897
3
1839-1908
3
1860-1910
3
1865-1958
3
1900-1967
3
1900-1987
3
1944-
3
Revolution, 1789
3
Revolution, 1930
3
Since 1945
3
approximately 1525-approximately 1576
3
1500-1699
2
1624-1654
2
1700-1799
2
1700-1899
2
1756-1835
2
1797-1826
2
1798-1880
2
1809-1861
2
1809-1882
2
1809-1885
2
1810-
2
1811-1870
2
1811-1910
2
1813-1889
2
1825-1892
2
1830-1875
2
1844-1934
2
1858-1919
2
1863-1947
2
1865-1942
2
1893-
2
1893-1897
2
1893-1991
2
1898-1990
2
1911-1979
2
1914-2011
2
1929-
2
1930-2099
2
1938-
2
1940-
2
more ...