Question

why was native Americans expelled from east of Mississippi ?

Answer 1

Andrew Jackson had long been a proponent of what he termed "Indian removal." As an army general, he had spent years leading violent campaigns against the Creeks in Georgia and Alabama and the Florida Seminoles — campaigns that culminated in hundreds of thousands of acres of land being moved from Indian nations to white farmers. He continued this crusade as President. He signed the Indian Removal Act in 1830, which gave the federal government the power to exchange Native-held land in the cotton kingdom east of the Mississippi for land to the west, in the "Indian Colonization Zone" acquired by the United States as part of the Louisiana Purchase.

The law required the government to negotiate fairly, voluntarily and peacefully with removal treaties: it did not allow the president or anyone else to force indigenous nations to surrender their land. However, the spirit of the law was often ignored by President Jackson and his administration and forced Native Americans to vacate lands they had lived on for centuries. In the winter of 1831, threatened by U.S. invasion Armed powers, the Choctaw were the first nation to be completely removed from their territory. They made the journey to Indian Territory on foot and without any government food , supplies or other assistance

By 1840, tens of thousands of Native Americans in the south-eastern states had been pushed off their land and forced to flee across the Mississippi to Indian Territory. The federal government vowed that their new land would remain untouched for ever, but "Indian Territory" shrank and shrank as the line of white settlement advanced westward. Oklahoma became a state in 1907 and Indian Territory was forever gone.