Answer: Mississippian
Explanation:
The Mississippian culture was the last significant prehistoric cultural community in North America. It lasted from approximately AD 700 and up to the coming of the first European explorers.
The Mississippians spread over the Southeast and the mid-continent, in the river valleys of today´s Mississippi, Alabama, Georgia, Arkansas, Missouri, Kentucky, Illinois, Indiana, and Ohio.
By the time European colonists first entered the Southeast, the Mississippian culture was already in decline.
