Era
20th century
6,995
1900-1999
3,732
19th century
2,859
1900 - 1999
1,593
1939-1945
1,224
21st century
979
18th century
910
1800-1899
869
1961 - 1975
743
1939 - 1945
708
Civil War, 1861-1865
675
Revolution, 1917-1921
596
Revolution, 1775-1783
543
1800 - 1899
474
2000-2099
436
Colonial period, ca. 1600-1775
343
1914-1918
320
20e siècle
311
1861 - 1865
303
1700-1799
277
1800-1999
271
1914 - 1918
262
Civil War, 1936-1939
259
17th century
239
1861-1865
232
1917-1921
209
Revolution, 1789-1799
202
1882-1941
200
1961-1975
183
1775-1783
176
1769-1821
175
21e siècle
175
1917 - 1921
167
1900-2099
162
1809-1865
157
1800 - 1999
156
Civil War, 1945-1949
151
16th century
145
1937-1945
145
1600-1775
144
1945-
141
Tang dynasty, 618-907
141
1937 - 1945
135
1775 - 1783
134
1843-1916
134
1945 - 1949
130
1700 - 1799
124
Three kingdoms, 220-265
122
20e siècle
118
19e siècle
114
more ...