Which group established trading post in the New World

The American Fur Company, established in 1808 by John Jacob Astor, was the largest American trading company and dominated the fur trade in the United States through its numerous trading posts until its dissolution in 1850.

as a result of the development shown on the graph,prices will most likely : the answer is rise

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.