Final answer:
The Treaty that traded Choctaw land in Mississippi for land in Oklahoma was the Treaty of Dancing Rabbit Creek.
Step-by-step explanation:
The Treaty of Dancing Rabbit Creek was the agreement that traded Choctaw land in Mississippi for land in Oklahoma. This treaty, signed on September 15, 1830, marked the first major step in the Indian Removal Act's implementation and the subsequent removal of the Choctaw to Indian Territory in present-day Oklahoma. The treaty stipulated the exchange of approximately 11 million acres of Choctaw lands east of the Mississippi for roughly 15 million acres in Oklahoma and included provisions such as annuities for certain Choctaw, including veterans of the American Revolution. The resultant relocation began in the fall of 1831 but was marked by significant suffering, with an estimated 2,500 Choctaw dying on the journey, which entered the collective memory as part of the Trail of Tears.