Era
1939-1945
53
1918-1945
36
20th century
22
Occupation, 1939-1945
13
1900-1999
12
Revolution, 1775-1783
12
1746-1817
11
Revolution, 1830-1832
11
1900-1945
9
Partition period, 1763-1796
9
Wars of 1918-1921
9
1945-
7
1648-1668
6
1763-1796
6
1914-1918
6
John II Casimir, 1648-1668
6
1747-1779
5
1775-1783
5
1860-1941
5
1864-1918
5
1918-1921
5
1945-1980
5
19th century
5
(1860-1941)
4
1763-1796 (Partage)
4
1775-1783 (Révolution)
4
1867-1935
4
1884-1964
4
20e siècle
4
1629-1696
3
1830-1832
3
1830-1864
3
1881-1943
3
18th century
3
1917-
3
1918-1921 (Guerres)
3
1939-1945 (Occupation)
3
Civil War, 1861-1865
3
John III Sobieski, 1674-1696
3
Since 1917
3
To 1795
3
(1783-1840)
2
(1881-1943)
2
1473-1543
2
1587-1632
2
1611-1667
2
1674-1696
2
1793
2
1795-1864
2
1795-1918
2
more ...