The state of Mississippi has seen at least 9 treaties that affected the boundaries and development of the state. Starting in 1786 and the
last treaty being signed in 1832. All of these treaties dealt with Indian nations (Choctaw and Chickasaw) with the exception of one which was with the Spanish.
Briefly, the treaties that directly affected Copiah County are:
Treaty of Fort Adams - 1801. Often called the Choctaw treaty of 1802, it ceded to the US the Vicksburg-Natchez-Centerville-Bude-Woodville
area and gave the US the right to build the Natchez Trace from Nachez to Nashville. This establish a portion of the western boundary of Copiah County.
Treaty of Mount Dexter - 1805. It ceded a large
section of land in the southern central section of MS to the US from the Choctaws. The Choctaws received cash and goods for ten years. This provided access to the area of Copiah County from the Louisiana
Treaty of Doak's Stand - 1820. Involved land in the MS lower Delta from Greenburg to Vicksburg, covering all of what is now Copiah County. This treaty is sometimes referred to as Chiefs