Era
20th century
35
1940-1991
28
1918-1940
20
1991-
20
Soviet occupation, 1940-1941
12
German occupation, 1941-1944
7
War of Independence, 1918-1920
7
21st century
4
1874-1956
3
18th century
2
1922-
2
1939-1940
2
1945-1989
2
1995
2
19th century
2
2006
2
Revolution, 1905-1907
2
1333-1374
1
1523-1718
1
1655-1697
1
16th century
1
17th century
1
1801-1917
1
1868-
1
1871-1925
1
1874-1970
1
1886-1963
1
1886-1971
1
1889-1976
1
1895-1944
1
1897-1965
1
1900-1937
1
1905-1980
1
1905-1986
1
1907-
1
1911-
1
1914-1918
1
1916-1949
1
1917-1953
1
1929-
1
1934-
1
1951-
1
1953-
1
1956-
1
1965-
1
1971-
1
1988-2003
1
1991-1995
1
1993
1
2002
1
more ...