Founded some 30-km south of Nippur, historical documents from Isin, shows that the city was established by the king “Ishbierra’, as his new capital.
The Isin dynasty founded by Ishbierra, ruled in confidence with out serious opposition for at least a hundred years, the king and his successors followed closely the precedents set at Ur. Like the kings of Ur they assumed the divine titles, becoming the last of the Mesopotamian dynasty to do so.
The dynasty also applied the Sumerian language, instead of the Akkadian as the official language of the kingdom, even when Ur was using Akkadian as the official and scribal language at that time.
Later Ishbierra succeeded in expelling the Elamites from Ur, and controlled the Sumerian cities as well as central Babylon. The city became the capital of Sumer after the fall of the third dynasty of Ur.
Excavations at the site has unearned the ‘Gula Temple’ (Gula: goddess of healing) which is in style and architectural: Babylonian.