Question: Okchai are a Muscogee tribe, they formed part of the former Creek (Muscogee) Confederacy in Alabama, prior to which event, which was a policy of the United States government in the 19th century whereby Native Americans were forcibly removed from their ancestral homelands in the eastern United States to lands west of the Mississippi River, thereafter known as Indian Territory?
Sentence (from "Indian removal"): The Indian Removal Act was the key law that forced the removal of the Indians, and was signed into law by President Andrew Jackson on May 28, 1830.
Relevant evidence: No