Era
1775-1783
23
1946-
14
1732-1799
13
18th century
12
21st century
11
Revolution, 1775-1783
11
1775-1865
10
19th century
10
1783-1789
8
Civil War, 1861-1865
8
1783-1809
7
1800-1899
7
2000-2099
5
1748-1826
4
1809-1865
4
1900-1999
4
20th century
4
1732-1808
3
1741-1801
3
1783-1865
3
1861 - 1865
3
Confederation, 1783-1789
3
1485-1603
2
1485-1714
2
1603-1714
2
1751-1836
2
1789-1809
2
1789-1815
2
1809-1817
2
1857-1861
2
1861-1865
2
1950-
2
1980-
2
2001-2009
2
2009-2017
2
Constitutional period, 1789-1809
2
To 1775
2
To 1865
2
1225?-1274
1
1700 - 1799
1
1700-1799
1
1700-1809
1
1700-1865
1
1700-1899
1
1706-1790
1
1728-1806
1
1728-1814
1
1733-1810
1
1735-1826
1
1736-1799
1
more ...