Era
20th century
29
1933-1945
11
1945-1955
8
1945-1990
7
1918-1945
3
1945-
3
19th century
3
Blockade, 1948-1949
3
1885-1945
2
1889-1945
2
1893-1974
2
1913-1980
2
1926-1945
2
1945-1989
2
Allied occupation, 1918-1930
2
-1961
1
1782-1852
1
1782-1867
1
1797-1878
1
1817-1904
1
1858-1942
1
1869-1940
1
1871-
1
1875-1955
1
1882-1945
1
1886-1973
1
1897-1978
1
1901-1953
1
1904-1993
1
1904-2005
1
1910-1943
1
1911-1988
1
1913-1991
1
1915-1983
1
1917-2001
1
1918-1933
1
1922-2012
1
1929
1
1931-
1
1943-1955
1
1945-1953
1
1947-
1
1990-
1
2000-
1
21st century
1
Bombardment, 1918
1
Bombardment, 1940-1945
1
Bombardment, 1944-1945
1
German occupation, 1940-1945
1
To 1933
1