Era
20th century
62
19th century
37
1564-1616
27
18th century
12
1945-
11
Quaternary
6
16th century
5
1789-1900
5
17th century
5
1933-1945
5
1837-1901
4
1769-1821
3
1770-1850
3
1801-1917
3
1879-1970
3
1991-
3
476-1492
3
Early modern, 1500-1700
3
Middle English, 1100-1500
3
Revolution, 1917-1921
3
1340?-1400
2
1399-1485
2
1485-1509
2
1580?-1625?
2
1608-1674
2
1660-1714
2
1688-1744
2
1741-1803
2
1783-1842
2
1789-
2
1789-1815
2
1799-1850
2
1800-1837
2
1857-1924
2
1865-1939
2
1869-1951
2
1882-1941
2
1883-1945
2
1888-1965
2
1889-1945
2
1896-1940
2
1950-
2
1979-1997
2
1982-
2
19TH CENTURY
2
20TH CENTURY
2
Commonwealth and Protectorate, 1649-1660
2
Early Stuarts, 1603-1649
2
Early modern (to 1700)
2
Revolution, 1789-1799
2
more ...