Era
1801-1917
20th century
13
19th century
10
1689-1801
7
1801 - 1917
5
1865-1921
4
1689-1917
3
1783-1865
3
1800-1999
3
1801-1999
3
1889-1968
3
1894-1917
3
18th century
3
1801-1921
2
1896-1982
2
1917-1970
2
1989-
2
Nicholas II, 1894-1917
2
Revolution, 1917-1921
2
Since 1801
2
To 1900
2
To 1917
2
1533-1613
1
1633-1689
1
1644-1912
1
1689 - 1917
1
1800 - 1999
1
1801 - 1970
1
1801 - 1999
1
1815-1861
1
1818-1883
1
1828-1910
1
1855-1925
1
1857-1918
1
1858-1949
1
1859-1941
1
1860-1943
1
1861-1912
1
1861-1917
1
1863-1945
1
1864-1910
1
1865-1898
1
1865-1918
1
1866-1930
1
1867-1939
1
1867-1953
1
1868-1918
1
1869-1962
1
1870-1944
1
1870-1952
1
more ...