Era
20th century
227
1940-1991
73
German occupation, 1941-1944
48
1918-1940
40
Soviet occupation, 1940-1941
40
1945-1991
39
To 1569
39
1918-1945
38
1991-
37
19th century
35
1569-1795
27
War of Independence, 1918-1920
19
18th century
15
1795-1918
14
17th century
10
Geschichte
9
To 1500
9
16th century
8
Revolution, 1905-1907
8
21st century
6
2001
5
2009
5
-1341
4
1350 or 1351-1434
4
1922-
4
1945-1989
4
2002
4
2003
4
Jagellons, 1386-1572
4
To 1795
4
-1263
3
1350-1430
3
1572-1763
3
15th century
3
1877-1942
3
1914-1918
3
1929-
3
1945-
3
1989-
3
Uprising, 1941
3
1340-1648
2
14th century
2
1874-1944
2
1881-1965
2
1882-1962
2
1896-1968
2
1900-1937
2
1917-1945
2
1918-1939
2
1921-1951
2
more ...