Era
20th century
9
19th century
8
1712-1786
4
18th century
4
1769-1821
3
1789-1815
3
21st century
3
1800-1891
2
1891-1916
2
1891-1944
2
1906-
2
1918-1933
2
1939-1945
2
Unification, 1990
2
World War, 1939-1945
2
-approximately 873
1
1695-1773
1
1769-1852
1
1780-1831
1
17th century
1
1842-1906
1
1864-1913
1
1866-1871
1
1871-1918
1
1888-1976
1
1889-1945
1
1893-1982
1
1894-1984
1
1897-1982
1
1902-1979
1
1902-1992
1
1905-
1
1917-1945
1
1917-2011
1
1918-
1
1919-1942
1
1933-1937
1
1945
1
1945 (Bombardement)
1
1945-
1
1945-1955
1
1947 or 1948-2016
1
1955-
1
1982
1
216 B.C.-1871 A.D
1
Bombardment, 1945
1
Frederick II, 1740-1786
1
Geschichte
1
Medieval, 500-1500
1
Siege, 1648-1669
1
more ...