he present study aims at shedding light on ubat Enlil city by reviewing the records of Royal Mary. This city had played a significant role during the old Assyrian periods around (2000-1521) B.C.At that time it was recognized as capital by the Assyrian king Shamsh-Adad I and lasted for about thirty-two years 1814-1782 B.C. In the city the king had been receiving kings, ambassadors, and emissaries...etc.Similarly , he contracted many pacts in the city and launched many military campaigns. Thus the city had been marked out as a political and economical center. Moreover , the Assyrian influence expanded a lot during the second mellinuim B.C. however , the role of this city got deterioted after the death of its king which led to a political void. This encouraged their enemies to contract a counter alliances against it. Its political and economical role began to fanish away , and it is hardly mentioned in the historical records