Era
20th century
354
1933-1945
156
World War, 1939-1945
118
1945-1953
40
1918-1945
37
German occupation, 1940-1945
35
1953-1961
32
1882-1945
31
1874-1965
26
1889-1945
24
1912-1945
24
1939-1945
22
1945-
22
Bombardment, 1945
18
1936-1945
17
1929
16
1945-1955
13
1945-1989
13
German occupation, 1941-1944
12
Japanese occupation, 1942-1945
12
1878-1953
9
1890-1969
9
Occupation, 1939-1945
9
1880-1964
8
1891-1944
7
1926-1945
7
1937-1945
7
1929-1945
6
Bombardment, 1940-1941
6
1884-1972
5
1885-1945
5
1900-1945
5
1917-1945
5
19th century
5
Civil War, 1936-1939
5
German occupation, 1943-1945
5
Japanese occupation, 1941-1944
5
1883-1945
4
1883-1946
4
1893-1958
4
1897-1945
4
1901-1953
4
1914-1945
4
1919-1947
4
1921-
4
1925-1953
4
1940-1945
4
21st century
4
1869-1940
3
1879-1953
3
more ...