Era
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1800-1917
2
1805-1872
2
1812-1870
2
1815-1861
2
1815-1870
2
1831-1910
2
1849-1919
2
1852-1942
2
1855-1881
2
1865-1933
2
1868-1963
2
1872-1943
2
1875-
2
1878-1967
2
1885-1967
2
1887-1969
2
1892-1983
2
1893-1977
2
1894-1919
2
1899-1992
2
1903-
2
1903-1950
2
1903-1966
2
1904-1991
2
1905-1907
2
1910-1945
2
1912-1989
2
1915-
2
1919-1933
2
1919-1945
2
1931-1994
2
1942-1970
2
1945-1953
2
1945-1976
2
1945-1990
2
1951-
2
1969-1974
2
1974-
2
1991-
2
2016
2
Alexander II, 1855-1881
2
Revolution of 1688
2
Revolution, 1905-1907
2
Since 1865
2
Since 1945
2
Since 1950
2
Since 1990
2
Since 1994
2
Since 2000
2
-1536
1
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