Era
19th century
119
20th century
115
Civil War, 1861-1865
86
Colonial period, ca. 1600-1775
61
1775-1865
60
Revolution, 1775-1783
56
1865-1950
40
1900-1999
35
18th century
34
1800-1899
30
1775-1783
27
To 1775
26
1861-1865
24
1951-
20
Regulator Insurrection, 1766-1771
17
1865-
11
Since 1865
10
1700-1799
8
16th century
7
17th century
7
21st century
7
1900-1938
6
1766-1771
5
1922-2003
5
Pleistocene
5
Since 1951
5
1552?-1618
4
1724-1795
4
1789-1815
4
1800-1999
4
1818-1892
4
1830-1894
4
1900 - 1999
4
1925-1996
4
1700-1899
3
1723-1781
3
1729-1788
3
1770?-1843
3
1786-1843
3
1799
3
1800 - 1899
3
1820-1891
3
1828-1863
3
1833-1915
3
1834-1882
3
1838-1905
3
1841-1863
3
1861-1877
3
1862-1948
3
1863-1938
3
more ...