Urukh appears to have been succeeded in the kingdom by a son, whose name it is proposed to read as Elgi or Ilgi.  Of this prince our knowledge is somewhat scanty.  Bricks bearing his name have been found at Ur (Mugheir) and at Tel Eid, near Erech, or Warka; and his signet-cylinder has been recovered, and is now in the British Museum.  We learn from inscriptions of Nabonidus that he completed some of the buildings at Ur, which had been left unfinished by his father; while his own bricks inform us that he built or repaired two of the principal temples at Erech.  On his signet-cylinder he takes the title of “King of Ur.”

After the death of Ilgi, Chaldaean history is for a time a blank.  It would seem, however, that while the Cushites were establishing themselves in the alluvial plain towards the mouths of the two great rivers, there was growing up a rival power, Turanian, or Ario-Turanian, in the neighboring tract at the foot of the Zagros mountain-chain.  One of the most ancient, perhaps the most ancient, of all the Asiatic cities was Susa, the Elamitic capital, which formed the centre of a nationality that endured from the twenty-third century B.C. to the time of Darius Hystaspis (B.C. 520) when it sank finally under the Persians.  A king of Elam, whose court was held at Susa, led, in the year B.C. 2286 (or a little earlier), an expedition against the cities of Chaldaea, succeeded in carrying all before him, ravaged the country, took the towns, plundered the temples, and bore off into his own country, as the most striking evidence of victory, the images of the deities which the Babylonians especially reverenced.  This king’s name, which was Kudur-Nakhunta, is thought to be the exact equivalent of one which has a world-wide celebrity, to wit, Zoroaster.  Now, according to Polyhistor (who here certainly repeats Berosus), Zoroaster was the first of those eight Median kings who composed the second dynasty in Chaldaea, and occupied the throne from about B. C. 2286 to 2052.  The Medes are represented by him as capturing Babylon at this time, and imposing themselves as rulers upon the country.  Eight kings reigned in space of 234 (or 224) years, after which we hear no more of Medes, the sovereignty being (as it would seem) recovered by the natives.  The coincidences of the conquest the date, the foreign sovereignty and the name Zoroaster, tend to identify the Median dynasty of Berosus with a period of Susianian supremacy, which the monuments show to have been established it Chaldaea at a date not long subsequent to the reigns of Urukh and Ilgi, and to have lasted for a considerable period.