railroads.
When and how did the United States say that there was no longer a "Frontier"?
A predominantly agricultural and mining economy.
The area just beyond established settlements is known as the frontier.
What role did the western Frontier play in the sectional conflict between North and the South from 1803-1850?
The Vietnam War was a major problem and the continued draft.
the closing of the frontier. Santo :)
herbert spencer!
You may be referring to the thesis of Frederick Jackson Turner, which he explained in, The Frontier In American History.The 1921 edition of that work is available online, free: http://xroads.Virginia.edu/~Hyper/TURNER/A one page summary of Turner's thesis is at a site sponsored by the Henry George School, developed for U.S.A. high school students: http://www.landandfreedom.org/ushistory/us16.htmThe closing of the frontier was one of the causes that led to the Age of Imperialism. The closing of the frontier led for Americans to seek new frontiers.
When and how did the United States say that there was no longer a "Frontier"?
The US Cavalry.
The Western Frontier was from the Mississippi River to the Pacific Ocean.
After the Civil War, the US military built the frontier because of the American westward expansion.
Animal fat
Because the United States is a huge contributor.
Alaska
real
The closing of Hathaway's, the last major U.S. shirt manufacturing plant in 2002, marked the end of U.S. domestic shirt production.