Whether at this time, Sumer and Akkad included the whole of Babylonia, or, as seems more likely, only the southern part, in either case, Lagash would fall under the jurisdiction of these kings, if their title is to be regarded as more than an empty boast.

Again, the rulers of Uruk are known simply as kings of that place, while those of Isin incorporate in their titles, kingship over Ur as well as Sumer and Akkad.
For this early period, extending from about 4000 B.C.to 2300, the chronology is as yet uncertain.

Beyond the titles of the rulers over Babylonian states, there are but few safe indications for determining the succession of dynasties.

So much, however, is now certain,--that simultaneous with the governors of Lagash and the older kings of Ur, there was an independent state in Northern Babylonia with its seat at Agade.

Indeed the history of this state can now be traced back six centuries beyond that of Lagash.