1546.
Another monarch, and the only other monumental name that we can assign to Berosus's fourth dynasty, is a certain Nur-Vul, who appears by the Chaldaean sale-tablets to have been the immediate predecessor of Rim-Sin, the last king of the _Sin_ series.

Nur-Vul has left no buildings or inscriptions; and we seem to see in the absence of all important monuments at this time a period of depression, such as commonly in the history of nations precedes and prepares the way for a new dynasty or a conquest.
The remaining monumental kings belong almost certainly to the fifth, or Arabian, dynasty of Berosus, to which he assigns the period of 245 years -- from about B.C.1546 to B.C.1300.

That the list comprises as many as fifteen names, whereas Berosus speaks of nine Arabian kings only, need not surprise us, since it is not improbable that Berosus may have omitted kings who reigned for less than a year.

To arrange the fifteen monarchs in chronological order is, unfortunately, impossible.

Only three of them have left monuments.