173751
Archaeological excavations carried out since 1954 have unearthed antiquities from an artificial mound of height containing seven stratified layers , created by various occupants from 2300 BC up to the 18th century , including Kassites , Portuguese and Persia ns .
 Portuguese, Persia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Portuguese, Persia