USA HISTORY

Detailed explanation-1: -The Mississippian culture was a Native American civilization that flourished in what is now the Midwestern, Eastern, and Southeastern United States from approximately 800 CE to 1600 CE, varying regionally. It was known for building large, earthen platform mounds, and often other shaped mounds as well.

Detailed explanation-2: -From c. 500 B.C. to c. 1650 A.D., the Adena, Hopewell, and Fort Ancient Native American cultures built mounds and enclosures in the Ohio River Valley for burial, religious, and, occasionally, defensive purposes.

Detailed explanation-3: -Mississippian period mounds can be seen at the Winterville, Jaketown, Pocahontas, Emerald, Grand Village, Owl Creek and Bear Creek sites. Mississippian period mound sites mark centers of social and political authority.

Detailed explanation-4: -Constructed around the year 250 by the ancestors of the Mississippian people called the Hopewell, the Great Circle and Octagon Earthworks most likely served as elaborate ceremonial structures where people gathered for large, seasonal rituals and ancestral rites.

Detailed explanation-5: -Watson Brake in Louisiana, constructed about 3500 BCE during the Middle Archaic period, is the oldest known and dated mound complex in North America.