Era
20th century
44
1940-1991
29
1918-1940
17
1991-
12
German occupation, 1941-1944
10
War of Independence, 1918-1920
7
Soviet occupation, 1940-1941
5
1877-1942
4
1937-
4
1864-1926
2
1881-1965
2
18th century
2
1914-1918
2
1945-1989
2
2003
2
2005
2
2007
2
Revolution, 1905-1907
2
To 1562
2
14th century
1
1562-1918
1
16th century
1
1705-1779
1
1720-1797
1
1754-1833
1
1779-1849
1
1809-1917
1
1825-1891
1
1846-1917
1
1859-1927
1
1871-1939
1
1884-1941
1
1887-1961
1
1887-1972
1
1891-1970
1
1898-1967
1
1899-1968
1
1899-1977
1
1900-1988
1
1914-2004
1
1917-1936
1
1917-1998
1
1918-1945
1
1925-1953
1
1926-
1
1927-
1
1930-
1
1932-1988
1
1934-
1
1944-
1
more ...