Historical Period
20th century
78
19th century
63
Civil War, 1861-1865
36
21st century
12
16th century
10
17th century
10
18th century
10
1865-1918
7
1918-1932
4
To 1500
4
1800-1899
3
1900-1999
3
1918-1933
3
Middle Ages, 500-1500
3
To 1865
3
1644-1912
2
1788-1824
2
1809-1865
2
1830-1914
2
1841-1925
2
1856-1939
2
1882-1945
2
1945-1995
2
1949-1976
2
1975-
2
510-30 B.C.
2
960-1644
2
Civil War, 49-45 B.C.
2
Danish Settlements, 1659-1850
2
Renaissance, 1450-1600
2
Revolution, 1775-1783
2
active 1815-1838
2
approximately 1830-1900
2
1500-1699
1
15th century
1
1738-1815
1
1800-1914
1
1800-1999
1
1817-1884
1
1820-1906
1
1821-1880
1
1827-1900
1
1835-1930
1
1838-1866
1
1838-1911
1
1840-1924
1
1865-1945
1
1865-1950
1
1868-
1
1868-1912
1
more ...