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The satrapy of Babylonia was absorbed into Asōristān ( meaning " The land of the Assyrians " in Persian ) in the Sasanian Empire , which began in 226 AD , and by this time East Syriac Rite Syriac Christianity ( which emerged in Assyria and Upper Mesopotamia the first century AD ) had become the dominant religion among the native Assyrian-Babylonian populace , who had never adopted the Zoroastrianism or Hellenic religions and languages of their rulers .
 Asōristān, Upper Mesopotamia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Asōristān, Upper Mesopotamia