Frontier in American History
Author: first_name: Frederick Jackson
last_name: Turner
Language: English
Year: 1921

Frederick Jackson Turner was an extremely influential U.S. historian, who is best known for his "frontier thesis", which proposed that American democracy was profoundly shaped by the existence of an undeveloped frontier area from the founding through the 1880s. He originally put forth his idea in the essay "The Significance of the Frontier in American History", published just three years after the frontier was "officially closed" in 1890. He continued to elaborate on the frontier thesis as well