Farmers' Alliances were organized groups formed in the late 19th century to address the economic challenges faced by farmers in the United States. These alliances aimed to promote cooperative buying and selling, helping farmers secure better prices for their crops and reduce costs for supplies. They also sought to influence political policies that would benefit agricultural interests. The movement gained momentum in the 1880s and led to the establishment of the Populist Party, which advocated for reforms such as the regulation of railroads and the introduction of a graduated income tax. Farmers' Alliances played a significant role in uniting rural communities and advocating for their rights.