Era
17th century
448
20th century
353
19th century
215
1900-1999
186
18th century
120
21st century
100
1800-1899
90
1775-1865
74
To 1500
64
1775-1783
59
Revolution, 1775-1783
57
16th century
46
1700-1799
46
1564-1616
42
1939-1945
42
2000-2099
42
Civil War, 1861-1865
38
Civil War, 1642-1649
37
Colonial period, ca. 1600-1775
23
1861-1865
20
Early modern, 1500-1700
20
Commonwealth and Protectorate, 1649-1660
18
1800-1999
17
To 1775
16
To 1898
16
1600-1699
15
1945-
15
Middle Ages, 600-1500
15
Middle English, 1100-1500
15
1900-2099
14
1700-1899
13
1649-1660
12
17th cent
12
Early modern and Elizabethan, 1500-1600
12
1933-1945
11
30-600
11
1743-1826
10
1946-
10
1960-
10
1600-1775
9
1633-1657
9
1745-1829
9
1783-1789
9
1882-1941
9
1945-1989
9
Early church, ca. 30-600
9
1066-1485
8
1734-1817
8
1737-1809
8
1809-1865
8
more ...