Era
20th century
635
19th century
241
1900-1999
132
21st century
112
18th century
87
Civil War, 1861-1865
80
1882-1941
38
1800-1899
33
1700-1799
31
2000-2099
31
1843-1916
30
1900-2099
28
Colonial period, ca. 1600-1775
23
Revolution, 1775-1783
23
1800-1999
21
17th century
19
1857-1924
17
1897-1962
16
1819-1891
15
1867-1957
13
Civil War, 1936-1939
13
1775-1817
11
1547-1616
10
Early modern, 1500-1700
10
1564-1616
9
1812-1870
9
1871-1922
9
Elizabeth, 1558-1603
9
1795
8
1835-1910
8
1906-1989
8
Civil War, 1642-1649
8
German occupation, 1940-1945
7
To 1500
7
1819-1880
6
1821-1880
6
1821-1881
6
1840-1928
6
1883-1924
6
1885-1930
6
1896-1940
6
1900 - 1999
6
1916-1990
6
1933-1945
6
1940-
6
1533-1603
5
16th century
5
1700-1899
5
1775-1865
5
1794
5
more ...