Era
18th century
78
20th century
29
1700-1799
23
1775-1783
22
19th century
20
1743-1826
16
1900-1999
16
1783-1809
13
1789-1815
12
Revolution, 1775-1783
12
1757-1804
10
1751-1836
9
1800-1899
8
1861-1865
7
1945-1989
7
1989-
6
21st century
6
1469-1527
5
1700-1809
5
1735-1826
5
1782-1850
5
1783-1865
5
17th century
5
1815-1861
5
Civil War, 1861-1865
5
1732-1808
4
1737-1809
4
1789-1809
4
1809-1865
4
1933-1945
4
To 1775
4
1706-1790
3
1775-1865
3
1783-1789
3
2009-2017
3
1588-1679
2
1700-1815
2
1711-1776
2
1742-1798
2
1775-1809
2
1841-1913
2
1859-1952
2
1882-1945
2
1900-1945
2
1901-1953
2
1902-1974
2
1924-2018
2
1945-
2
1945-1955
2
1946-
2
more ...