Proper dating edict
It makes obvious use of preexisting written sources.
And since the used Samuel and Kings as his main source and he did not add much to them, what he did add was late and of little value.
Scholars of the biblical text are now looking afresh at the Chroniclers History.
They were the preservers and guardians of Israels traditions and historical memory, and they shaped the period of Judean restoration.
Not surprisingly, the priests and Levites wrote the biblical history that came out of the postexilic period.
The DH reflects a sixth-century exilic perspective, while the CH reflects a late fifth-century postexilic perspective.