Era
18th century
81
20th century
35
21st century
35
1775-1783
26
1700-1799
23
19th century
21
1743-1826
17
1900-1999
17
Revolution, 1775-1783
16
2000-2099
15
1783-1809
13
1989-
13
1789-1815
12
1945-1989
11
2009-2017
11
1757-1804
10
1751-1836
9
1946-
9
1800-1899
8
17th century
7
1861-1865
7
2001-2009
7
1783-1865
6
2017-
6
1469-1527
5
1700-1809
5
1735-1826
5
1782-1850
5
1783-1789
5
1815-1861
5
1933-1945
5
Civil War, 1861-1865
5
1706-1790
4
1732-1808
4
1737-1809
4
1789-1809
4
1809-1865
4
1993-
4
2016
4
To 1775
4
1775-1865
3
1868-1963
3
2017-2021
3
Since 1900
3
Since 1945
3
Since 2000
3
1588-1679
2
1700-1815
2
1711-1776
2
1742-1798
2
more ...