Era
20th century
25,001
19th century
14,615
18th century
11,654
1900-1999
11,354
1961-1970
9,526
1971-1980
8,956
2001-2010
8,430
1991-2000
7,487
17th century
7,375
1951-1960
6,679
2011-2020
6,426
16th century
6,091
1981-1990
6,001
1800-1899
4,684
500-1400
4,655
1813-1883
4,412
1756-1791
4,314
Early works to 1800
3,829
1770-1827
3,815
1700-1799
3,643
1685-1750
3,567
1900 - 1999
3,477
1941-1950
3,261
2001 - 2010
3,035
1931-1940
2,975
21st century
2,909
15th century
2,622
Civil War, 1861-1865
2,485
Revolution, 1775-1783
2,250
To 1800
2,065
20e siècle
1,894
1921-1930
1,759
1564-1616
1,672
1810-1849
1,571
1775-1783
1,505
1813-1901
1,484
1600-1699
1,467
1500-1599
1,458
1800 - 1899
1,422
1749-1832
1,405
1797-1828
1,271
1700 - 1799
1,235
1833-1897
1,189
1991 - 2000
1,144
1800-1999
1,124
1971 - 1980
1,114
1685-1759
1,110
1732-1809
1,104
1961 - 1970
1,070
1810-1856
1,064
more ...