The century between 1400 and 1500 saw many changes take place in prehistoric Caddo culture. The most apparent evidence of these change is the cessation of ornate, highly ceremonial burials of certain people complete with extravagant gifts and exotic belongings—including servant sacrifices—in mound centers. In some river valleys, mound building ceased altogether, and while it persisted in other places such as the Red River valley, mound groups usually thereafter entailed an earthen platform with a modest collection of associated buildings and one small dome-shaped mound. New pottery designs and vessel shapes were produced, and other objects such as arrow points also changed. Archaeologists venture that these changes were part of new or different
