Pre-Columbian America
Similar structures have been identified during excavations of prehistoric sites of the Wichita tribe. These structures, called "council circles", occur near the center of these sites, and previous archaeological excavations have suggested they consist of a central patio surrounded by four semisubterranean structures. The function of the council circles is unclear. Waldo Wedel has suggested they may be ceremonial structures, possibly associated with solstice observations. Recent analysis suggests that many non-local artifacts occur exclusively or primarily within council circles, implying the structures were occupied by political and/or ritual leaders of the Great Bend aspect peoples. Other archaeologists leave open the possibility that the council circle earthen works served a defensive role.
Read more about this topic: Circular Ditches
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