Era
20th century
1,109
19th century
727
21st century
394
1564-1616
179
1929
141
17th century
138
18th century
95
Civil War, 1861-1865
94
1901-1953
53
16th century
51
1933-1945
47
Revolution, 1775-1783
43
1945-1953
41
1945-1989
41
1953-1961
41
1961-1969
34
1969-
34
1937-
28
1969
25
1946-
24
1882-1945
21
1945-1955
19
Early modern, 1500-1700
19
Middle Irish, 1100-1550
19
1783-1865
18
1929-1968
17
1874-1965
16
1889-1945
16
1935-
16
1917-1963
15
Middle English, 1100-1500
14
1926-
12
1951-
12
1955-1965
12
1809-1849
11
1809-1882
11
1858-1919
11
1913-1994
11
1928-
11
1939-1945
11
1879-1955
10
1936-
10
1944-
10
1452-1519
9
1939-
9
1942-
9
1952-
9
1756-1791
8
1770-1827
8
1835-1910
8
more ...