Era
20th century
14
1929
8
19th century
5
Civil War, 1861-1865
5
1809-1865
4
18th century
4
Revolution, 1775-1783
4
Edward III, 1327-1377
3
1734-1820
2
1757-1827
2
1775-1865
2
1806-1871
2
1898-1989
2
1939-1945
2
1951-
2
Casimir IV, 1447-1492
2
-1423
1
1327-1377
1
1599-1660
1
1604?-1683
1
1606-1670
1
1700-1865
1
1709 or 10-1801
1
1732-1799
1
1737-1809
1
1743-1833
1
1773-1838
1
1774-1845
1
1775-1783
1
1785-1851
1
1786-1836
1
1794-1858
1
1800-1899
1
1800-1999
1
1810-1899
1
1827-1898
1
1832-1888
1
1841-1935
1
1858-1919
1
1861-1865
1
1864?-1943
1
1869-1948
1
1884-1962
1
1900 - 1999
1
1900-1999
1
1904-1991
1
1907-
1
1914-1918
1
1939 - 1945
1
1939-
1
more ...