Era
20th century
356
1900-1999
190
19th century
164
21st century
121
18th century
87
17th century
66
1946-
62
2000-2099
59
1800-1899
55
To 1500
45
1564-1616
38
1700-1799
37
1839-1914
31
1859-1952
31
1723-1790
30
16th century
29
1800-1999
26
1945-
26
Early modern, 1500-1700
25
1900-2099
24
1945-1993
24
1938-
23
1703-1758
22
1914-2000
22
1921-2016
22
1936-2018
22
Civil War, 1861-1865
22
Revolution, 1775-1783
20
1939-1945
18
1700-1899
17
1600-1699
15
Since 1945
15
1500-1700
14
1724-1804
14
1225?-1274
13
1775-1783
13
1989-
13
Middle Ages, 600-1500
13
1844-1900
12
1856-1939
12
1945-1989
12
354-430
12
Middle English, 1100-1500
12
1913-1994
11
2001-2009
11
Early church, ca. 30-600
11
Primitive and early church, ca. 30-600
11
-1400
10
1918-1945
10
Early modern and Elizabethan, 1500-1600
10
more ...