Era
20th century
8,241
1900-1999
3,899
21st century
2,714
19th century
2,036
1900 - 1999
1,633
2000-2099
1,451
Civil War, 1861-1865
1,185
18th century
965
17th century
853
Early works to 1800
704
1800-1899
520
1809-1865
397
Revolution, 1775-1783
395
1564-1616
372
15th and 16th centuries
353
20e siècle
348
-632
267
1900-2099
266
1630-1685
261
2000 - 2099
255
1732-1799
238
21e siècle
228
Early modern, 1500-1700
217
Renaissance, 1450-1600
213
20e siècle
205
16th century
200
1939-1945
197
1800 - 1899
189
1650-1702
182
1914-1918
172
1819-1892
167
To 1500
166
1770-1850
165
1662-1694
164
1700-1799
163
1861-1865
157
War of 1812
154
1800-1999
145
1961 - 1975
144
1980
143
1633-1701
142
1265-1321
133
1888-1965
133
Colonial period, ca. 1600-1775
132
1500-1700
130
1830-1886
126
1978
126
1914 - 1918
124
1939 - 1945
119
1977
119
more ...