After the subjugation of Merodach Baladan, king of the sea-coast, _i.e._ the coast of the Persian Gulf, Tiglath Pilesar's dominion extended over the whole region of the Euphrates. He assures us that "he laid waste the land of Chaldæa throughout its whole extent," and "received tribute from all the Chaldæans;" that "he possessed the whole land of Kardunias (Babylonia), and was lord over it;"[20] and with perfect truth, for an inscription of king Sargon tells us, that Bit Amukan, Bit Dakkur, Bit Silan, Bit Sahalla, Bit Yakin form the whole of the land of the Chaldæans.[21] Tiglath Pilesar calls himself "king of Asshur, king of Babylon, king of Sumir and Accad;" he claims the full title of the kings of Babylon. The names of the principalities of Chaldæa are obviously taken from their dynasties. Nabu-sabzi is called the son of Silan, and his land Bit Silan; Merodach Baladan is the son of Yakin, and his land is Bit Yakin. Shalmanesar II., as we saw (Vol. II. p. 239), spoke of Israel as Bit Omri, _i.e._ the house of Omri. The Chinzirus of the canon of Ptolemy enables us to assume that Tiglath Pilesar after the defeat of Kinziru of Bit Amukan placed this Kinziru as a vassal-king or viceroy over Babylon, a proceeding which recurs often enough in the proceedings of the kings of Asshur towards conquered principalities and lands. The canon of Ptolemy does not make Chinzirus the sole king of Babylon. From 731 B.C. to 727 B.C. Chinzirus and Porus are said to have reigned together--a joint sovereignty, of which this is the only instance in the canon. Strikingly enough their two reigns end in the same year, and this, 727 B.C. is the very year in which, according to the Assyrian canon, Tiglath Pilesar's reign is brought to a close. In the excerpt from Berosus' list of the kings of Babylon, given by Polyhistor, of which Eusebius has preserved some very scanty fragments, the 45 kings who reigned over Babylon for 526 years are followed by "a king of the Chaldæans, whose name was Phul."[22] If the Babylonians named Tiglath Pilesar Phul in their list of kings, and if Porus in the canon of Ptolemy is a mistake for Polus (Pul), the Babylonians, in order to conceal their dependence on Assyria, must have placed their countryman before the stranger, the vassal king before the real king in their series of rulers.