Era
20th century
19
20th century --
11
1925-
8
21st century
8
1984-
5
Early works to 1800
5
19th century
4
1953-
3
Egypt
3
Rome
3
1861-1865
2
1914-1918
2
1931-
2
1940-
2
1953
2
1960-
2
1975-
2
1984
2
1993
2
1996
2
21st century --
2
To 332 B.C.
2
16th century
1
16th century --
1
1775-1783
1
17th century
1
17th century --
1
1817-1862
1
1818-1883
1
1833-1896
1
1842-1910
1
18th century
1
18th century --
1
1903-1990
1
1906-1975
1
1908-1986
1
1912-2006
1
1917-1945
1
1918 - 1968
1
1920-
1
1923-1991
1
1928-
1
1931
1
1933-
1
1938-2011
1
1938-2011 --
1
1939-1945
1
1942-
1
1945
1
1945-
1
more ...