123509
Based on comparison of archeological remains and pottery styles , scholars believe that it was most likely occupied from 1400 – 1550 CE by peoples of the South Appalachian Mississippian culture ( a regional variation of the Mississippian culture ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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