Era
19th century
2,498
20th century
2,335
1876
1,308
18th century
616
1900-1999
615
1800
542
1939-1945
515
1819
506
Early works to 1800
477
1818
454
1815
424
Revolution, 1775-1783
419
1814
403
1813
397
1800-1870
392
1796
391
1816
382
1811
369
1798
368
1794
366
1809
357
Colonial period, ca. 1600-1775
356
1795
354
Civil War, 1861-1865
353
1800-1899
345
1810
338
1817
337
1808
334
-632
318
1807
304
1732-1799
301
1812
300
1809-1865
284
1799
266
1804
247
21st century
242
1802
237
1805
233
1806
228
1792
203
1797
200
1803
196
1793
192
1790
186
1564-1616
181
1900 - 1999
168
1827
162
1787
161
1856
155
1801
145
more ...