PBS
Pbs: The West: Frederick Jackson Turner (1861 1932)
This PBS website provides a brief biographical sketch of Frederick Jackson Turner, and an overview of his theory regarding the significance of the American western frontier as the defining experience in the development of the American...
Curated OER
The u.s. At the Close of the Revolution, Showing Land Claims of States, 1911
A map of the United States at the close of the American Revolution showing the western land claims extending to the Mississippi River by the individual states after the Treaty of 1783 with Britain. The map shows the frontiers with the...