Era
20th century
13
1918-1945
5
1933-1945
4
1865-1918
2
18th century
2
1917-1945
2
German occupation, 1941-1944
2
1741-1820
1
1889-1945
1
1910-1936
1
1913-1921
1
1945-
1
1945-1989
1
1945-1990
1
1989-
1
19th century
1
Bourbons, 1589-1789
1
Civil War, 1861-1865
1
Revolution, 1775-1783
1
Revolution, 1789-1799
1
United States
1