Describe the reasons for the growth of populism in the United States during the late 1800s

In the late 1800s, the United States experienced a tremendous growth in industrialization. Led by oil, steel, and other manufacturing industries, the United States had become the world’s leading producer of manufactured goods by 1900.

Explanation:

Populism was rooted in farmer discontent. Farmer's Alliances unified farmers from the South and the West. They were organized locally, sometimes regionally, but they could not organize on a larger scale. Farmers knew that they needed more influence in the government at the state and local levels. The need for a new political party rose as farmers felt that Democratic/Republican parties and businessmen/bankers/the landowning elite did not represent them. The Populist Party was formed in 1891. Factors that lead to its formation were deflation, labor unions' support, and people's distrust of the main political parties. 

Explanation:

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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.