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 Agade 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.