This is a 20-volume encyclopedic account of America from the early settlements to the present day. My set is incomplete, containing the following volumes:
V5, 1821-1832 - Steps Towards Equalitarianism
V6, 1833-1840 - The Challenge of a Continent
V7, 1841-1849 - Manifest Destiny
V9, 1858-1865, The Crisis of the Union
V10, 1866-1883 - Reconstruction and Industrialization
V11, 1884-1894 - Agrarianism and Urbanization
V13, 1905-1915 - The Progressive Era
V14, 1916-1928 - World War and Prosperity
V15, 1929-1939 - The Great Depression
V17, 1950-1960 - Cold War in the Nuclear Age

Contains reprints of the original documents that were pivotal in the development of the United States with brief commentary and many bibliographical references to further reading. ( )

An index to Encyclopaedia Britannica's excellent reference series, "The Annals of America". This is a reference collection of the actual writings and documents of American historical significance. The "Annals" is an excellent reference source for anybody doing research into any aspect of American history (up to 1976), and this is a necessary index. ( )

22 volume set of documents reprinted with minimal editorial commentary. The first 18 volumes were edited by Mortimer J Adler and Charles Van Doren for Encyclopedia Britannica.

Organized chronologically with a view to examination of primary documents. The documents exhibit differing and competing views on social and cultural events as well as scientific and historical achievements. ( )