Era
1945-
34
20th century
28
19th century
15
1800-1899
8
Since 1945
8
1868-
7
21st century
7
18th century
6
1900-1999
6
2000-2099
6
1592-1670
5
1965-
5
Revolution, 1917-1921
5
1976-
4
1900 - 1999
3
1933-1945
3
1989-
3
Early works to 1800
3
Since 1868
3
1751-1816
2
1856-1950
2
1859-1909
2
1861-1925
2
1877-1968
2
1912-1949
2
1918-1945
2
1939 - 1945
2
1939-1945
2
1945-1964
2
1949-
2
1949-1976
2
1960-
2
1980-
2
Allied occupation, 1945-1952
2
Civil War, 1861-1865
2
(1835-1910)
1
-1400
1
1501-1570
1
1564-1616
1
1700-1799
1
1760-1819
1
1765-1947
1
1781-1869
1
1823-1897
1
1835-1910
1
1838
1
1845-1924
1
1854
1
1855
1
1856-1916
1
more ...