Era
20th century
752
19th century
213
21st century
137
1564-1616
95
17th century
77
1929
59
Civil War, 1861-1865
55
16th century
54
18th century
53
1901-1953
51
1933-1945
48
1945-1989
42
1945-1953
41
1953-1961
41
1965-
38
1969-
35
1961-1969
34
1937-
29
1896-1980
25
1969
25
1945-1964
22
1945-
21
1859-1952
20
1946-
20
1921-1997
19
1935-
19
1945-1955
19
1783-1865
18
1896-1934
18
1936-
18
1882-1945
17
Revolution, 1775-1783
17
1944-
15
Early modern, 1500-1700
15
1929-1968
14
Middle English, 1100-1500
14
Revolution, 1910-1920
14
1889-1945
13
1951-
13
1918-1961
12
1926-
12
1928-
12
1948-
12
1955-1965
12
2009-
12
1917-1963
11
1939-
11
1939-1945
11
1452-1519
10
1809-1849
10
more ...