Era
20th century
6
To 1775
6
1775-1865
5
1865-1950
5
1951-
4
Colonial period, ca. 1600-1775
4
1856
3
1976
3
1986
3
19th century
3
1752-1832
2
1804
2
1861-1865
2
1868
2
1896
2
18th century
2
1900-1999
2
1928
2
1946-
2
1978
2
1979
2
1980
2
1981
2
1982
2
1984
2
21st century
2
1671-1735
1
1735-1826
1
1754-1802
1
1761-1816
1
1770-1844
1
1783-1815
1
1788-1864
1
1789-1797
1
1789-1820
1
1790-1865
1
1791-1868
1
1794-1878
1
1796-1859
1
1797-1801
1
1798-1864
1
1799-1889
1
1804-1845
1
1806-1876
1
1813-1861
1
1821-1875
1
1822-1885
1
1823-1885
1
1828
1
1829-1837
1
more ...