Era
20th century
123
19th century
52
Revolution, 1917-1921
40
1801-1917
29
1895-1944
20
1900-1999
20
18th century
19
1936-1953
15
1939-1945
15
1991-
13
1870-1924
10
1917-1921
10
Soviet occupation, 1979-1989
10
21st century
9
17th century
7
1917-1945
7
1945-1991
7
20e siècle
7
1889-1938
6
1917-1936
6
1925-1953
6
1945-1989
6
To 1801
6
16th century
5
1800-1999
5
1885-1925
5
1700-1799
4
1730-1800
4
1769-1834
4
1800-1899
4
1894-1917
4
1946-
4
1953-1985
4
1600-1699
3
1700-1899
3
1865-1937
3
1891-1973
3
1898-1972
3
1907-1996
3
1914-1918
3
Nicholas II, 1894-1917
3
To 1500
3
1613-1689
2
1672-1725
2
1800-1917
2
1818-1883
2
1878-1953
2
1881-1919
2
1891-1956
2
1893-1937
2
more ...