Era
Civil War, 1861-1865
3
18th century
2
1900-1999
2
1945-
2
1976
2
20th century
2
Colonial period, ca. 1600-1775
2
Revolution, 1775-1783
2
-1813
1
-1923
1
1473-1543
1
1590-1679
1
1620?-1700
1
1667?-1708
1
1723-1791
1
1733-1804
1
1743-1826
1
1759-1796
1
1762-1878
1
1807-1892
1
1815-1872
1
1819-1892
1
1869-1934
1
1892-1973
1
1922-
1
1968-
1
1979-
1
1991-
1
1993-
1
19th century
1
Period
1
Periodicals
1
Since 1979
1
Since 1991
1