Era
20th century
95
19th century
35
2011
23
Civil War, 1861-1865
18
2012
17
Revolution, 1775-1783
17
1809-1865
16
1900-1999
15
2013
14
Colonial period, ca. 1600-1775
14
1981-
12
1929
11
2010
10
2014
10
1929-1968
9
1732-1799
8
1756-1791
7
18th century
7
1933-1945
7
1945-
7
1951-
7
Civil War
7
Revolution
7
1412-1431
6
1564-1616
6
German occupation, 1940-1945
6
Juvenile Fiction
6
To 332 B.C.
6
1564-1642
5
1706-1790
5
1743-1826
5
1767-1845
5
1805-1875
5
1821-1912
5
1900 - 1999
5
1917-1963
5
1991
5
Colonial period
5
To 1846
5
1475-1564
4
1713-1784
4
1734-1820
4
1820-1906
4
1840-1893
4
1866-1943
4
1867-1957
4
1880-1968
4
1884-1962
4
1887-1986
4
1917-
4
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