It was probably about the time of the juncture of the civilizations of Eridu and Nippur that the Semites entered the country. There are indications which lead to the belief that, as in the case of the Semitic immigrants in Egypt, they came originally from Arabia. The Semite readily accepted the Sumerian civilization which he found flourishing in the valley of the Euphrates, and adapted the Sumerian system of writing to his own language, in what manner will be indicated later. But the Sumerians themselves were not above borrowing from the rich Semitic tongue, and many of the earliest Sumerian texts we encounter are strongly Semitized. But although the Semites appear to have filtered into Sumerian territory by way of Eridu and Ur, the first definite notices we have of their presence within it are in the monuments of the more northern portion of that territory, in what is known as Akkad, in the neighbourhood of Bagdad, where they founded a small kingdom in much the same manner as the Jutes founded the kingdom of Kent. The earliest monuments, however, come from Lagash, the modern Tel-lo, some thirty miles north of Ur, and recount the dealings of the high-priest of that place with other neighbouring dignitaries. The priests of Lagash became kings, and their conquests extended beyond the confines of Babylonia to Elam on the east, and southward to the Persian Gulf. [Illustration: Assault on a City from a bas-relief representing the Campaigns of Sennacherib Photo W.A. Mansell and Co.] A Babylonian Conqueror