Era
20th century
29
1809-1865
13
2000-2020
12
19th century
10
Civil War, 1861-1865
9
17th century
8
1900-1999
8
1564-1616
5
1861-1865
5
1800-1899
4
1956-
4
21st century
4
Early modern, 1500-1700
4
Revolution, 1775-1783
4
16th century
3
1797-1851
3
1827-1895
3
1857-1861
3
2020-2040
3
Since 1900
3
1775-1783
2
1874-1965
2
18th century
2
1912-2016
2
1935-1977
2
1945-
2
1945-1970
2
1945-1989
2
1947-
2
1989-
2
Geschichte
2
Old English, ca. 450-1100
2
War of 1812
2
-1938
1
-579
1
1485-1603
1
1500-1599
1
1552?-1618
1
15th and 16th centuries
1
1600-1789
1
1632-1677
1
1661-1731
1
1696-1782
1
1700-1799
1
1706-1790
1
1707-1783
1
1732-1799
1
1759-1796
1
1783-1815
1
1785-1795
1
more ...