Era
Civil War, 1861-1865
981
20th century
626
Colonial period, ca. 1600-1775
601
19th century
600
1775-1865
597
1861-1865
485
1900-1999
277
Revolution, 1775-1783
277
1800-1899
203
1865-1950
189
1600-1775
188
1861 - 1865
172
18th century
146
1800 - 1899
123
1900 - 1999
101
1775-1783
86
1600 - 1775
80
1775 - 1865
80
1951-
79
21st century
76
1924-
67
1865-
66
1696-1785
54
1775 - 1783
50
1884-1915
50
1863
49
Emigration, 1731-1735
49
1714-1770
48
Colonial period
48
Since 1951
48
To 1775
45
20e siècle
40
1757-1806
39
Early works to 1800
37
1861-1865 (Guerre de Sécession)
34
1700-1799
33
1809-1893
33
1864
33
1850
32
Ottoman Empire, 1288-1918
30
-1913
28
1732-1795
28
2000-2099
28
1865-1877
27
1929-1968
27
1900-1949
26
1933-1945
25
ca 1600-1775 (Période coloniale)
25
Cretaceous
24
20e siècle
23
more ...