Era
20th century
100
Revolution, 1917-1921
31
1939-1945
29
1931
25
1917-1921
24
1900-1999
21
1932
12
1930
10
1870-1924
8
1928-1932
6
19th century
5
Siege, 1941-1944
5
1801-1917
3
1884-1968
3
1886-
3
1917-1921 (Révolution)
3
1917-1936
3
1925-1953
3
1935-
3
20e siècle
3
21st century
3
862-1237
3
Anna, 1730-1740
3
To 1533
3
1587-1610
2
1799-1837
2
1800-1899
2
1846-1888
2
1905-1907
2
1917 - 1921
2
1917-1945
2
1918-1930
2
1936-1953
2
1941-1944
2
1963-
2
1996
2
German occupation, 1941-1944
2
Peter I, 1689-1725
2
Revolution, 1905-1907
2
Since 1917
2
Time of Troubles, 1598-1613
2
To 862
2
active 1st century
2
approximately 956-1015
2
-1585
1
-1701
1
-1775
1
1040-1105
1
1385 - 1580
1
1488-1575
1
more ...