Group Two

Sectionalism, Civil War, and Reconstruction

1820 - 1821
1832 - 1833
1833 - 1834
1846 - 1847
1849 - 1850
1850 - 1851
1852 - 1853
1854 - 1855
1857 - 1858
1858 - 1859
1859 - 1860
1860 - 1861
1861 - 1862
1863 - 1864
1865 - 1866
1867 - 1868
1877 - 1878

Intolerance and threats to civil liberties

1798
1853
1860 - 1865
1865
1900
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1931
1936
1937
1938
1939
1940
1941
1943
1944
1945
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959

Wars in American History

1754
1763
1775
1783
1812
1814
1846
1848
1861
1865
1898
1917
1918
1941
1945
1950
1953
1954
1973

Development of political parties

1792
1816
1824
1860
1936