Era
20th century
13,376
19th century
8,483
1900-1999
3,926
1775-1865
1,854
Revolution, 1775-1783
1,809
Colonial period, ca. 1600-1775
1,677
1900 - 1999
1,672
21st century
1,576
Civil War, 1861-1865
1,367
1800-1899
1,191
18th century
1,016
To 1775
937
1775-1783
932
1600-1775
680
2000-2099
633
20e siècle
627
To 1898
625
1951-
527
1898-1951
510
1861-1865
500
1800 - 1899
491
1775 - 1783
450
1861 - 1865
426
1865-1950
424
17th century
329
1600 - 1775
301
Early works to 1800
292
1800-1999
284
2001
277
French and Indian War, 1754-1763
262
1700-1799
259
1850
253
1775 - 1865
249
20e siècle
218
1804
216
War of 1812
213
1900-2099
211
1809-1865
192
1756-1836
188
Since 1951
183
19e siècle
179
1939-1945
173
1865-1898
163
1929
162
21e siècle
162
1732-1799
161
1739-1812
155
1800 - 1999
155
1564-1616
153
1769-1828
153
more ...