Era
1918-1933
1933-1945
10
20th century
8
1889-1945
4
1871-1918
3
1871-
2
1945-1990
2
20e siècle
2
Since 1871
2
-1992
1
1780-1831
1
1789-1900
1
1800-1891
1
1833-1913
1
1847-1934
1
1865-1945
1
1868-1937
1
1875-1955
1
1878-1929
1
1893-1946
1
1897-1945
1
1897-1992
1
1914-1933
1
1918-
1
19th century
1
Civil War, 1861-1865
1
William II, 1888-1918
1