Era
19th century
172
1789-1869
96
1934-
87
20th century
84
To 1789
68
18th century
61
1869-1934
59
Colonial period, ca. 1600-1775
58
1800-1899
50
17th century
39
1900-1999
37
21st century
24
Since 1934
20
Civil War, 1861-1865
19
1775-1865
18
Peasant Uprising, 1994-
14
Revolution, 1775-1783
14
1767-1845
13
1700-1899
11
1783-1865
11
To 1775
11
1743-1826
10
2000-2099
10
French and Indian War, 1754-1763
10
1959-
9
1985-
9
To 1848
9
1815-1875
8
Spanish colony, 1540-1810
8
1600-1775
7
1600-1799
7
1775-1783
7
1945-1985
7
Indian occupation, 1973
7
Native Crisis, 1990
7
To 1763
7
To 1865
7
To 1899
7
1700-1799
6
1750-1815
6
1829-1837
6
1836-1846
6
1844?-1891
6
1865-1921
6
Indian occupation, 1969-1971
6
Since 1900
6
Spanish colony, 1565-1763
6
To 1763 (New France)
6
To 1810
6
16th century
5
more ...