Era
20th century
1,171
19th century
437
18th century
114
Civil War, 1861-1865
107
Civil War, 1936-1939
59
21st century
56
1649-1721
55
1951-
54
1945-
52
1934-
49
1948-
47
Revolution, 1775-1783
46
1941-
45
1939-
43
1935-
42
1946-
42
1940-
40
1938-
39
1942-
39
1943-
38
1944-
38
1947-
37
1931-
36
17th century
35
1933-
35
1949-
35
1775-1865
31
1924-
31
1955-
31
1936-
29
1925-
28
1928-
28
1929-
28
1922-
27
1927-
27
1932-
27
1956-
27
Colonial period, ca. 1600-1775
27
Early works to 1800
27
1865-1950
26
1900-1999
26
1950-
26
1952-
25
1954-
25
1920-
24
1926-
24
1930-
24
1937-
22
1939-1975
22
1564-1616
21
more ...