A real historical difficulty meets us soon after this, in the sacred narrative, in the invasion of the kingdom of Samaria, by Pul, who is called a "king of Assyria," and is said to have put Menahem to a tribute of a thousand talents of silver.[84] We possess the history of Assyria for this period, apparently in a state of completeness; and this history shows us no monarch at this time (or indeed at any other time), bearing a name in the least resembling that of Pul. The predecessor of Tiglath-pileser on the throne of Assyria, was a certain Asshur-lush (or Asshur-likkis), whose predecessor was Asshur-dayan, who followed on Shalmaneser III. It seems impossible that any one of these kings can be Pul. Moreover, Assyria, in the time immediately preceding the accession of Tiglath-pileser, instead of being a great, aggressive power, capable of marching armies into Palestine, was in a depressed state, troubled by frequent insurrections among her own subjects, and quite incapable of sending out distant military expeditions. Thus "Pul, king of Assyria," constitutes to the modern historical inquirer a real difficulty--a difficulty which it has been proposed to meet in various ways. The best explanation hitherto suggested is, I think, the following. Pul, who was called by Berosus, the great Babylon historian, "king of the Chaldeans," was probably a monarch who reigned at Babylon, while Asshur-lush was reigning at Nineveh. In the troublous decade of years which preceded Tiglath-pileser's accession, he became a powerful prince, perhaps deprived Assyria of her western provinces, and invaded Syria and Palestine from the quarter from which Assyrian invasions had been wont to come. Presenting himself to the Israelites as the representative of the great Mesopotamian power, with which they had been contending for centuries, they termed him loosely "king of Assyria" when he was in reality a king of Babylon, who had possessed himself of a portion of the Assyrian dominions. In the same way, they subsequently termed Nabopolassar, the father of Nebuchadnezzar, and even Darius Hystaspis, "kings of Assyria."[85]