Período
19th century
612
Civil War, 1861-1865
557
20th century
332
Revolution, 1775-1783
227
1990
139
1861-1865
113
French and Indian War, 1754-1763
65
1775-1783
50
1861 - 1865
46
18th century
46
Cretaceous
36
From 65 to 140 million years ago
33
War of 1812
30
Quaternary
23
From 2 million years ago
20
Colonial period, ca. 1600-1775
19
French and Indian War, 1755-1763
19
To 1800
17
1775 - 1783
16
Siege, 1781
16
1755-1763
14
1861-1865 (Guerre de Sécession)
14
1861
13
Paleozoic
13
Precambrian
13
1880
12
From 140 to 190 million years ago
12
Jurassic
12
Eocene
11
Paleocene
11
Siege, 1775-1776
11
1800-1899
10
1863
10
Cambrian
10
Early works to 1800
10
From 40 to 55 million years ago
10
From 55 to 65 million years ago
10
Ordovician
10
Permian
10
Tertiary
10
1732-1799
9
1980
9
From 230 to 570 million years ago
9
From 345 to 405 million years ago
9
From 425 to 570 million years ago
9
From 570 million to 5 billion years ago
9
Siege, 1863
9
1884
8
1885
8
From 405 to 425 million years ago
8
Mais ...