Era
19th century
9,735
20th century
9,084
Early works to 1800
3,850
1900-1999
3,534
18th century
3,003
1800-1899
2,741
21st century
1,614
1945-
1,525
17th century
1,216
1900 - 1999
1,072
Colonial period, ca. 1600-1775
948
1951-
886
1800 - 1899
849
1700-1799
839
2000-2099
656
16th century
624
Civil War, 1861-1865
609
Since 1945
585
1949-
542
1947-
509
1783-1865
503
1960-
425
1971-
413
19e siècle
393
Revolution, 1775-1783
367
1392-1910
360
20e siècle
357
1918-1945
330
1981-
328
1975-
316
1940-
309
1600-1699
308
1946-
297
1944-
296
1939-1945
295
1600-1868
292
1918-
291
1800-1999
287
To 1803
283
1976-
281
1254-1323?
279
Geschichte
279
1959-
278
1970-
275
1865-1918
274
1917-
271
1950-
271
To 1763 (New France)
271
1948-
263
1644-1912
259
more ...