Era
20th century
6,362
Early works to 1800
3,764
19th century
3,643
17th century
3,299
1900-1999
2,897
21st century
2,340
18th century
1,695
To 1500
1,450
1800-1899
1,252
1945-
1,076
2000-2099
1,008
16th century
857
2001-2009
841
2009-
756
1939-1945
742
1946-
732
1991-
720
1900 - 1999
675
1989-
609
1948-
547
20e siècle
523
1960-
504
1947-
476
1700-1799
472
1600-1699
469
1933-1945
462
1981-2001
441
Since 1945
435
1971-1981
414
1951-
412
Geschichte
411
Civil War, 1861-1865
404
Colonial period, ca. 1600-1775
401
1980-
398
1993-
395
Since 1991
377
1990-
375
1949-
373
Since 2009
373
2001-
342
Revolution, 1789-1799
325
1724-1804
324
1942-
313
1800-1999
311
1971-
309
1800 - 1899
303
1644-1912
302
Since 1989
300
1881-1973
299
1944-
298
more ...