20th century 163
21st century 145
19th century 63
18th century 28
17th century 16
2000- 14
1989- 13
1991- 13
1933-1945 12
Civil War, 1861-1865 12
1918-1945 10
1981-2001 10
2009- 9
16th century 8
1945- 8
1990- 8
2001-2009 8
To 1500 8
1929 6
1945-1989 6
1993- 6
1975- 5
1980-2020 5
To 1865 5
1818-1883 4
1865-1918 4
1979- 4
1994- 4
Colonial period, ca. 1600-1775 4
1564-1616 3
1883-1950 3
1901-1953 3
1946- 3
1955- 3
1970- 3
1976-2000 3
1976-2002 3
1992- 3
1993-2001 3
2002- 3
Revolution, 1789-1799 3
To 1863 3
1783-1865 2
1838-1916 2
1854-1926 2
1861-1865 2
1868- 2
1882-1945 2
1933- 2
1939- 2
1945-1990 2
1966- 2
1971- 2
1984- 2
2017-2021 2
Abdul Mejid, 1839-1861 2
Civil War, 1936-1939 2
Civil War, 2011- 2
Early modern and Elizabethan, 1500-1600 2
Early modern, 1500-1700 2
Republic, 510-30 B.C. 2
Revolution, 1917-1921 2
1066-1485 1
1304-1374 1
1562-1635 1
1600-1750 1
1609-1680 1
1750-1918 1
1751-1840 1
1775-1783 1
1775-1817 1
1789-1855 1
1789-1900 1
1800-1837 1
1800-1883 1
1801-1917 1
1802-1871 1
1804-1876 1
1809-1865 1
1819-1892 1
1822-1885 1
1824-1948 1
1836-1909 1
1850-1898 1
1850-1899 1
1850-1924 1
1853-1890 1
1856-1915 1
1856-1919 1
1856-1924 1
1861-1875 1
1861-1917 1
1861-1945 1
1865- 1
1865-1933 1
1865-1950 1
1865-1951 1
1869-1940 1
1876-1929 1
1877-1951 1