Era
1801-1917
313
19th century
287
20th century
256
1894-1917
254
1689-1801
167
18th century
146
1917-1945
116
1945-
111
To 1689
107
1900-1999
106
Revolution, 1917-1921
90
1800-1899
89
1855-1881
89
1801-1825
78
Since 1945
78
1945-1991
76
21st century
75
1800-1917
65
1871-1918
64
1689-1725
58
1991-
58
17th century
51
1881-1894
51
19e siècle
50
1917-
47
Since 1991
47
1644-1912
46
1914-1918
46
1945-1989
45
2000-2099
45
1801 - 1917
43
1825-1855
43
1672-1725
40
1700-1799
39
1894 - 1917
38
1800-1999
37
1939-1945
37
Nicholas II, 1894-1917
37
1762-1796
36
Since 1917
36
1689-1917
35
20e siècle
34
Peter I, 1689-1725
34
Qajar dynasty, 1794-1925
33
16th century
32
1900 - 1999
31
1917-1921
30
1953-1975
30
1894-1918
28
1917-1936
28
more ...