what is the significance of the cumberland gap
Cumberland Gap Famous in American colonial history for its role as a key passageway through the lower central Appalachians, it was an important part of the Wilderness Road and is now part of the Cumberland Gap National Historical Park.
Frontier Thesis Turner saw the land frontier was ending, since the U.S. Census of 1890 had officially stated that the American frontier had broken up. He sounded an alarming note, speculating as to what this meant for the continued dynamism of American society as the source of U.S. innovation and democratic ideals was disappearing.[citation needed]