The suggested synchronism, if established, would have been of considerable assistance in arranging the chronology of an obscure period of history, but it cannot be regarded as probable. Temti-agun sets no title after Kutir-Nakhkhunte's name, an omission that is hardly compatible with the theory that he was his superior and suzerain. Moreover, it is now certain that the title of _sukkallu_, so far from implying a measure of independence, was a distinctive mark of subjection to foreign control. For an inscription of the sukkal Kukka-Nasher has recently been published,[11] which is dated by a formula of Ammi-zaduga, the last king but one of the first Babylonian dynasty, proving that he governed Susa in Ammi-zaduga's name. This synchronism is the only certain one in the early history of the two countries, for it probably disposes of another recently suggested between Adda-Pakshu and Sumu-abu, the founder of the Babylonian monarchy. A contract-tablet of the epoch of Adda-Pakshu is dated in "the year of Shumu-abi," who has been identified with Sumu-abu, the Babylonian king.[12] Apart from the fact that no title follows Shumu-abi's name, it has been pointed out that a far shorter interval separated Adda-Pakshu from Kuk-Nashur.[13] We are therefore reduced to the conclusion that at any rate the later members of Ebarti's dynasty owed allegiance to Babylon, and it is a legitimate assumption that the earlier rulers, who also bore the title of _sukkallu_, acknowledged the suzerainty of either Babylon or Isin. The control exercised by the sovereign state was doubtless often nominal, and it is probable that border warfare was not of infrequent occurrence. A reflection of such a state of affairs may probably be seen in the short inscription of Anu-mutabil, a governor of the city of Der, which he engraved upon an olive-shaped stone now in the British Museum.[14] This local magnate, who probably lived at about the period of the Dynasty of Isin, boasts that he broke the heads of the men of Anshan, Elam and Simash, and conquered Barakhsu.