Era
1939-1945
88
21st century
24
2000-2099
23
20th century
21
1902-1994
18
1917-1948
16
1900-1999
15
1745-1812
9
1772-1811
8
1800-1899
8
1948-1949
8
19th century
8
1135-1204
7
1939 - 1945
7
1838-1933
6
1880-1950
6
1929-1948
6
1040-1105
5
1760-1827
5
1865-1935
5
German occupation, 1941-1944
5
active 18th century
5
1452-1519
4
1799-1917
4
1822-1895
4
1878-1942
4
1886-1973
4
1889-1984
4
1910-2012
4
1922-1995
4
1929-2010
4
1948-1967
4
1967
4
Occupation, 1939-1945
4
1488-1575
3
168 B.C.-135 A.D
3
1700-1799
3
1847-1931
3
1856-1939
3
1860-1904
3
18th century
3
1900 - 1999
3
1906-1962
3
1913-2015
3
1929-
3
1929-1945
3
20e siècle
3
586 B.C.-70 A.D
3
Siege, 1948
3
Warsaw Ghetto Uprising, 1943
3
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