Era
20th century
50
1889-1976
27
19th century
26
1900-1999
22
1800-1899
9
21st century
9
1879-1955
8
To 1500
8
17th century
7
18th century
7
To 146 B.C.
4
1700-1799
3
Middle English, 1100-1500
3
1200-1253
2
1284-1536
2
1290?-1349
2
1343-
2
1367-1413
2
1642-1727
2
1646-1716
2
16th century
2
1724-1804
2
1783-1865
2
1797-1851
2
1857-1913
2
1857-1924
2
1866-1946
2
1876-1944
2
1892-1940
2
1895-1975
2
1900-2099
2
1901-1991
2
1907-1972
2
1925-2017
2
1934-
2
1935-2019
2
1936-
2
1936-1982
2
1944-
2
1951-
2
1970-
2
2000-2099
2
Early modern, 1500-1700
2
Middle Ages, 600-1500
2
To 1800
2
To 1830
2
To 1865
2
approximately 1354-1416
2
-1541
1
1066-1485
1
more ...