We are furnished with a third valuable synchronism between the dynasties of Babylon and of the south by the reference to Ammi-ditana's destruction of the wall of Nîsin, for the date-formula adds that this had been erected by the people of Damiḳ-ilishu. The ruler referred to is obviously the third king in the dynasty of the Sea-Country, who succeeded Itti-ili-nibi upon the throne.[20] We may conclude that it was in his reign, or shortly after it, that Ammi-ditana succeeded in recovering Nîsin, after having already annexed Nippur on his southward advance. In his thirty-fourth year, two years before the capture of Nîsin, he had dedicated an image of Samsu-iluna in the temple E-namtila, and we may perhaps connect this tribute to his grandfather with the fact that in his reign Babylon had last enjoyed the distinction conferred by the suzerainty of Nippur. In the year following the recovery of Nîsin Ammi-zaduga succeeded his father on the throne, and since he ascribes the greatness of his kingdom to Enlil, and not to Marduk or any other god, we may see in this a further indication that Babylon continued to control his ancient shrine. But the remaining date-formulæ for Ammi-zaduga's reign do not suggest that Ammi-ditana's conquests were held permanently. A succession of religious dedications is followed in his tenth year by the conventional record that he loosed the pressure of his land, suggesting that his country had been through a period of conflict; and, though in the following year he built a fortress, Dûr-Ammi-zaduga "at the mouth of the Euphrates," the nearly unbroken succession of votive acts, commemorated during his remaining years and in the reign of his son Samsu-ditana, makes it probable that the kings of Sea-Country were gradually regaining some of the territory they had temporarily lost.[21] But it was not from the Sea-Country that the West-Semitic Dynasty of Babylon received its death-blow. In the late chronicle, which has thrown so much light on the earlier conflicts of this troubled period, we read of another invasion, which not only brought disaster to Babylon but probably put an end to her first dynasty. The chronicler states that during the reign of Samsu-ditana, the last king of the dynasty, "men of the land of Khatti marched against the land of Akkad," in other words, that Hittites from Anatolia[22] marched down the Euphrates and invaded Babylonia from the north-west. The chronicle does not record the result of the invasion,[23] but we may probably connect it with the fact that the Kassite king Agum-kakrime brought back to Babylon from Khanî, the old Khana on the middle Euphrates,[24] the cult-images of Marduk and Sarpanitum and installed them once more with great pomp and ceremony within their shrines in E-sagila. We may legitimately conclude that they were carried off by the Hittites during their invasion in Samsu-ditana's reign.