20th century 79
19th century 39
21st century 29
18th century 19
To 1500 14
16th century 11
17th century 10
Civil War, 1861-1865 8
1933-1945 6
1946- 6
Early modern, 1500-1700 5
1564-1616 4
1856-1939 4
Revolution, 1775-1783 4
1818-1883 3
1906-1975 3
1945- 3
1945-1989 3
2001-2009 3
2009- 3
Colonial period, ca. 1600-1775 3
Middle Ages, 600-1500 3
Primitive and early church, ca. 30-600 3
Revolution, 1789-1799 3
To 146 B.C. 3
1632-1704 2
1775-1783 2
1850-1894 2
1884-1972 2
1917-1948 2
1918-1945 2
1925-1995 2
1926-1984 2
1934- 2
1954- 2
1960- 2
1970- 2
1980- 2
1991- 2
Cretaceous 2
Empire, 284-476 2
Ottoman Empire, 1288-1918 2
World War, 1939-1945 2
active 2nd century 2
-1695 1
1057-1603 1
1066-1485 1
1076?-1115? 1
1081-1453 1
1268-1559 1
1430 or 1431-1476 or 1477 1
1472-1553 1
1509-1564 1
1547-1616 1
1552?-1599 1
1558-1612 1
1559-1789 1
1562-1635 1
1600-1681 1
1623-1662 1
1644-1704 1
1646-1716 1
1653-1704 1
1706-1790 1
1714-1796 1
1722-1803 1
1729-1802 1
1735-1826 1
1743-1803 1
1746-1803 1
1758-1794 1
1758-1815 1
1769-1821 1
1771-1832 1
1775-1865 1
1783-1865 1
1789-1799 1
1789-1815 1
1795-1860 1
1809-1849 1
1810 or 1811- 1
1812-1889 1
1817- 1
1817-1894 1
1818-1884 1
1819-1891 1
1824-1905 1
1828-1910 1
1830-1915 1
1834-1918 1
1837-1901 1
1841-1904 1
1846-1917 1
1851-1930 1
1853-1890 1
1856-1943 1
1858-1919 1
1859-1952 1
1860-1935 1
1861-1865 1