Era
20th century
29
1822-1913
13
19th century
8
1799-1883
6
1900-1999
6
1940-1994
4
1980-
4
-1617
3
1897-1993
3
1907-1964
3
1412-1431
2
1533-1603
2
1580-1631
2
1799-1847
2
1800-1899
2
1819-1896
2
1820-1910
2
1844-1926
2
1897-1937
2
1906-1975
2
1910-1997
2
1927-2006
2
1929-1945
2
1934-
2
1940-
2
1956-
2
1964-
2
1981-
2
21st century
2
Charles VII, 1422-1461
2
Civil War, 1861-1865
2
Colonial period, ca. 1600-1775
2
Elizabeth, 1558-1603
2
1600-1699
1
1647-1717
1
1753-1784
1
1775 - 1815
1
1775-1817
1
1776-1831
1
1783-1815
1
17th century
1
1800-1885
1
1803-1890
1
1811-1896
1
1815-1852
1
1815-1879
1
1818-1894
1
1819-1901
1
1820-1906
1
1821-1910
1
more ...