Era
Civil War, 1861-1865
21
1861-1865
16
Quaternary
13
1864
12
1861 - 1865
10
19th century
9
From 2 million years ago
8
-1853
6
1782-1852
6
1745-1840
5
1796 Dec. 15
5
18th century
5
1910
5
War of 1812
5
1706-1790
4
1775-1865
4
1815
4
1787
3
1800-1899
3
-1854
2
1786-1847
2
1797
2
1798 May 9
2
1802
2
1805-1858
2
1812-1815
2
1829-1905
2
1831-1879
2
1831-1900
2
1909
2
1912
2
1963
2
Bombardment, 1940-1941
2
Ordovician
2
Paleozoic
2
Silurian
2
d. 1820
2
(1786-1847;
1
(1821-1871)
1
-1400
1
-1820
1
-1844
1
-1864
1
-1902
1
-1929
1
1066 - 1485
1
1066-1485
1
1717-1806
1
1718-1807
1
1779-1844
1
more ...