20th century 1,054
19th century 497
1900-1999 430
18th century 290
1800-1899 148
17th century 138
16th century 111
1700-1799 98
21st century 74
1800-1999 62
Early modern, 1500-1700 61
To 1500 57
1783-1865 47
1500-1599 35
1700-1899 32
1500-1700 30
1865- 26
2000-2099 26
Colonial period, ca. 1600-1775 26
1801-1917 25
1865-1918 24
1900-2099 24
Since 1900 24
1600-1699 23
1066-1485 20
1945- 20
-1536 16
1268-1559 15
1564-1616 15
1803-1882 15
1783-1850 14
1868-1963 13
1918-1933 13
1918-1945 13
1985-1991 13
1709-1784 12
1933-1945 12
1945-1989 12
Middle English, 1100-1500 12
Revolution, 1789-1799 12
1600-1799 11
1980- 11
Since 1865 11
1789-1900 10
1900 - 1999 10
221 B.C.-960 A.D. 10
960-1644 10
Revolution, 1775-1783 10
Revolutionary period, 1775-1783 10
1835-1910 9
1865-1939 9
1874-1946 9
1976- 9
Civil War, 1861-1865 9
Classical period, 1500-1700 9
1500-1699 8
1644-1912 8
1917-1970 8
1975-1985 8
1500-1799 7
1743-1826 7
1775-1865 7
1800-1917 7
1817-1862 7
1821-1881 7
1844-1900 7
1939-1945 7
1975- 7
1989- 7
Civil War, 1936-1939 7
To 146 B.C. 7
To 1775 7
1516-1700 6
1789-1815 6
1809-1882 6
1871-1918 6
1879-1955 6
1897-1962 6
1904-1967 6
1949- 6
1970-1991 6
Elizabeth, 1558-1603 6
Medieval, 500-1500 6
Old English, ca. 450-1100 6
To 1559 6
Victoria, 1837-1901 6
14th century 5
1600-1775 5
1600-1868 5
1603-1714 5
1608-1674 5
1706-1790 5
1712-1778 5
1788-1824 5
1812-1870 5
1819-1891 5
1844-1889 5
1865-1999 5
1882-1941 5
1897-1982 5