Era
20th century
26
19th century
22
18th century
18
1900-1999
18
17th century
17
1700-1799
13
1600-1699
9
1800-1899
9
1914-1918
9
1910-1936
6
1945-
6
1945-1964
6
Since 1945
6
16th century
5
1700 - 1799
5
1837-1901
5
Early modern, 1500-1700
5
Middle English, 1100-1500
5
To 1775
5
1500-1700
4
1603-1714
4
1700-1899
4
1800-1999
4
1914 - 1918
4
Colonial period, ca. 1600-1775
4
1485-1603
3
1600 - 1699
3
1760-1820
3
1800 - 1899
3
1856-1928
3
1933-1945
3
Civil War, 1642-1649
3
Early modern and Elizabethan, 1500-1600
3
-1268
2
1100-1500
2
1500 - 1600
2
1500 - 1700
2
1500-1699
2
1509-1547
2
1564-1616
2
1573?-1637
2
1588-1679
2
1599-1658
2
1600-1649
2
1600-1799
2
1603-1625
2
1642-1649
2
1648-1714
2
1661?-1731
2
1699-1772
2
more ...