Answer:
"Wild West" redirects here; for other uses, see Wild West (disambiguation). "Western Frontier" redirects here; for the film, see Western Frontier (film). For cultural influences and their development, see Western (genre).
American frontier
The cowboy, the quintessential symbol of the American frontier, c. 1887
Date
1607–1912 Territorial Expansion (First colony established at Jamestown in 1607 to the admission of Arizona Territory as a state in 1912)
1865–1890 Archetypal Old West Period (End of the American Civil War in 1865 to the Closing of the Frontier in 1890)[1][2][3][4]
Location Currently the United States, historically in order of their assimilation:
Thirteen Colonies
New Sweden
New Netherlands
New France
New Spain
Missouri Territory
Vermont Republic
Louisiana territory
Rupert's Land (Dakota Territory)
Spanish Florida
Republic of Texas
Oregon Country
California Republic
Colorado Territory