Era
20th century
249
19th century
152
1900-1999
146
1800-1899
73
Civil War, 1861-1865
52
21st century
36
1859-1952
24
18th century
24
1861-1865
22
1839-1914
21
17th century
18
Early modern, 1500-1700
18
1800-1999
17
1889-1976
17
1900-2099
16
1564-1616
15
1809-1865
15
Middle Ages, 600-1500
15
16th century
14
1794-1878
14
1939-1945
14
2000-2099
13
1500-1700
11
1700-1899
11
To 1500
11
1225?-1274
10
600-1500
10
1770-1831
9
1800 - 1899
9
1813-1855
9
1856-1939
9
1882-1941
9
1712-1778
8
1842-1910
8
1861-1947
8
1865-1877
8
1892-1940
8
1897-1962
8
1906-1975
8
1946-
8
1265-1321
7
1724-1804
7
Revolution, 1775-1783
7
1066-1485
6
1552?-1599
6
1700-1799
6
1906-1989
6
1942-
6
354-430
6
Middle English, 1100-1500
6
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