Era
1939-1945
7
20th century
7
1900-1999
5
1900-1981
4
1965-
4
19th century
4
1945-1991
3
1951-1960
3
German occupation, 1940-1945
3
1705-1782
2
1800-1899
2
1835-1909
2
1844-1896
2
1854-1891
2
1885-1930
2
1898-1948
2
1898-1967
2
1914-1918
2
1943-1978
2
1970-1979
2
Leopold II, 1865-1909
2
To 1908
2
-1329?
1
14th century
1
1555-1648
1
1700 - 1799
1
1700-1799
1
1769-1821
1
1769-1852
1
1785-1863
1
1786-1859
1
1800 - 1899
1
1800-1824
1
1839-1908
1
1841-1904
1
1864-1916
1
1865-1915
1
1868-1944
1
1873-1897
1
1873-1924
1
1882-1931
1
1887-1964
1
1888-1971
1
1890-1935
1
18th century
1
1903-1975
1
1907-1972
1
1908-
1
1908-1960
1
1908-1986
1
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