Era
19th century
62
20th century
24
1800-1899
12
1832-1888
11
1775-1817
5
1816-1855
5
1818-1848
5
1820-1849
5
1900-1999
5
1811-1896
4
21st century
4
Civil War, 1861-1865
4
1792-1873
3
1805-1879
3
1824-1889
3
1830-1886
3
Nicholas II, 1894-1917
3
1800-1878
2
1805-1900
2
1816-1876
2
1822-1907
2
1868-1918
2
1879-1961
2
1882-1941
2
1885-1930
2
1900 - 1999
2
1977-
2
2000-2020
2
Colonial period, ca. 1600-1775
2
George III, 1760-1820
2
-1647
1
10th century
1
1185-1600
1
1456-1485
1
1485-1536
1
1489-1541
1
1491-1547
1
1496-1533
1
1507-1536
1
1508-1543
1
1580-1636
1
1595-1677
1
1598?-1659
1
1599-1660
1
16th century
1
1797-1851
1
1798-1879
1
1799-1888
1
17th century
1
1800-1877
1
more ...