Era
Uprising, 1918-1919
142
20th century
129
1900-1999
59
1918-1919
49
Occupation, 1939-1945
30
19th century
29
1939-1945
23
1918-1945
13
Wars of 1918-1921
12
18th century
11
1800-1899
9
1800-1999
9
13th century
8
1900 - 1999
8
1900-1945
7
1918 - 1919
7
1918-1921
7
1945-1980
7
Uprisings, 1846-1848
7
1918-1919 (Powstanie Wielkopolskie)
6
1939 - 1945
6
1980-1989
6
Revolution, 1830-1832
6
1700-1799
5
Geschichte
5
Revolution, 1863-1864
5
1257-1296
4
1786-1845
4
1798-1855
4
1914-1919
4
20e siècle
4
21st century
4
Revolution of 1848
4
1138-1305
3
1220 or 1221-1257
3
16th century
3
1789-1900
3
1796 or 1797-1861
3
17th century
3
1830-1832
3
1857-1937
3
1864-1918
3
1867-1935
3
1897-1946
3
18e siècle
3
Geschichte 1939-1945
3
Piast period, 960-1386
3
To 1500
3
approximately 1161-1231
3
approximately 1190-1239
3
more ...