Era
To 1848
58
20th century
31
19th century
24
1848-
16
1510-1554
14
1900-1999
14
16th century
12
Civil War, 1861-1865
8
1500-1599
6
Spanish colony, 1540-1810
6
1800-1899
5
Colonial period, ca. 1600-1775
4
Since 1848
4
To 1500
4
1549?-1624
3
1600-1750
3
1750-1815
3
1821-1861
3
1877-1972
3
18th century
3
1951-
3
Spanish colony, 1565-1763
3
To 1810
3
To 1912
3
1600-1775
2
1693-1740
2
1815-1875
2
1817-1882
2
1822-1893
2
1829-1909
2
1848-1929
2
1850-1908
2
1854-1936
2
1861-1865
2
1866-1895
2
1893-1955
2
1896-1976
2
1901-1985
2
1945-1989
2
Conquest, 1519-1540
2
Since 1800
2
To 1565
2
To 1846
2
active 16th century
2
1644-1711
1
1700-1899
1
1700-talet
1
1738-1781
1
1793-1852 or 3
1
17th century
1
more ...