Era
20th century
3,478
1900-1999
2,752
19th century
1,518
1800-1899
1,045
1939-1945
492
Civil War, 1861-1865
419
18th century
407
21st century
300
1861-1865
286
1700-1799
252
17th century
204
2000-2099
174
1809-1865
165
1800-1999
164
1951-
161
16th century
151
Revolution, 1775-1783
141
1933-1945
137
1945-1989
128
1945-
114
1775-1783
111
1600-1699
102
1946-
97
1939 - 1945
85
Colonial period, ca. 1600-1775
85
Since 1900
83
1900-2099
80
1914-1918
80
1989-
76
Since 1945
76
1732-1799
75
1900 - 1999
74
1500-1599
73
1949-
68
1941-
67
1865-1950
63
20e siècle
61
To 1500
61
1743-1826
60
1961-1975
60
Since 1951
60
1944-
57
1700-1899
56
1882-1945
55
1706-1790
54
1783-1865
51
Early modern, 1500-1700
50
1943-
49
1960-
49
1934-
47
more ...