High-priests now took the place of kings in Kis and the country of Opis. But a time came when the same change occurred also at Lagas. doubtless in consequence of its conquest by some superior power. One of the monuments discovered at Tello, the ancient Lagas, describes the victories of the "high-priest" Entemena over the ancestral foe, and the appointment of a certain Ili as "high-priest" of the land of Opis. From henceforward Kis and Opis disappear from history. A new power had meanwhile appeared on the scene. While the Sumerian princes were engaged in mutual war, the Semites were occupying northern Babylonia, and establishing their power in the city of Agadê or Akkad, not far from Sippara. Here, in B.C. 3800, arose the empire of Sargani-sar-ali, better known to posterity as "Sargon" of Akkad. He became the hero of the Semitic race in Babylonia. Legends told how he had been hidden by his royal mother in an ark of bulrushes daubed with pitch, and intrusted to the waters of the Euphrates, how he had been found and adopted as a son by Akki the irrigator, and how the goddess Istar had loved him and restored him to his kingly estate. At all events, the career of Sargon was a career of victories. Babylonia was united under his rule, Elam was subjugated, and three campaigns sufficed to make "the land of the Amorites," Syria and Canaan, obedient to his sway. He caused an image of himself to be carved on the shores of the Mediterranean, and demanded tribute from Cyprus, Uru-Malik or Urimelech being appointed governor of Syria, as we learn from a cadastral survey of the district of Lagas. A revolt of the Sumerian states, however, called him home, and for a time fortune seemed against him. He was besieged in Akkad, but a successful sally drove back the rebels, and they were soon utterly crushed. Then Sargon marched into Suri or Mesopotamia, subduing that country as well as the future Assyria. It was the last, however, of his exploits. His son Naram-Sin succeeded him shortly afterwards (B.C. 3750), and continued the conquests of his father, Canaan was already a Babylonian province, and Naram-Sin now carried his arms against Magan, or the Sinaitic Peninsula, where he secured the precious mines of copper and turquoise. Building stone from Magan had already been imported to Babylonia by Ur-Nina, a king of Lagas, and grandfather of E-ana-gin, but it must have been brought in the ships of Eridu.