Era
20th century
542
19th century
279
1945-
244
18th century
146
17th century
129
1970-
126
16th century
104
To 146 B.C.
100
1865-1918
69
1783-1865
65
1918-1945
64
21st century
62
1066-1485
61
To 1783
52
To 332 B.C.
47
1980-
42
Early modern, 1500-1700
41
To 1500
37
Colonial period, ca. 1600-1775
35
Victoria, 1837-1901
29
To 1066
28
1268-1559
26
1989-
26
1564-1616
25
1945-1989
22
To 634
21
To 622
20
1775-1865
19
1950-
19
1960-1980
18
1328-1600
16
711-1516
16
Middle English, 1100-1500
16
Civil War, 1861-1865
15
Revolution, 1775-1783
15
1830-1900
14
1900-1999
14
Elizabeth, 1558-1603
14
Tudors, 1485-1603
13
-1400
12
1949-
12
476-1492
10
Medieval, 500-1500
10
To 70 A.D.
10
1933-1945
9
1945-1970
9
To 221 B.C.
9
1644-1912
8
1789-1900
8
1951-
8
more ...