Era
1789-1869
94
1934-
83
To 1789
64
1869-1934
56
19th century
50
Colonial period, ca. 1600-1775
28
20th century
22
Since 1934
18
18th century
17
To 1775
11
1783-1865
10
1743-1826
9
1767-1845
9
17th century
9
1775-1865
8
1800-1899
8
1815-1875
8
Revolution, 1775-1783
8
French and Indian War, 1754-1763
7
To 1865
7
1829-1837
6
Indian occupation, 1969-1971
6
1750-1815
5
1770-1838
5
1775-1783
5
1789-1934
5
1865-1921
5
1866-1895
5
Indian occupation, 1973
5
To 1848
5
1754-1816
4
1789-1903
4
1884-1968
4
1900-1999
4
Civil War, 1861-1865
4
To 1899
4
1718-1779
3
1774-1809
3
1783-1815
3
1789-1899
3
1809-1865
3
1861-1865
3
21st century
3
Since 1900
3
To 1763
3
1600-1775
2
1700-1799
2
1700-1899
2
1742-1807
2
1767-1838
2
more ...