C;mon, guys - we'd wonder if there was something wrong if he wrote in any other fashon.
Oh, and, DU;
After the tenth century BC, there's surprisingly loads of tie ins with events in scripture; tie-ins recorded in Egypt, Assyeria, Babylon and Persia.
Sonetimes names are mentioned, at other times places, battles, etc.
Don't forget that, in the scheme of things, historically speaking, Israel and Judah were minor players at best in the history of late bronze age and early Iron age Middle Eastern history. That substantive evidence exists at all is interesting in itself.
The other difficulty is that Israel had an annoying habit of giving Hebrew language names to people and places beyond her borders...and untsngling them is a headache at times.
At least they shared this bad habit of theirs with the Greeks, though, because everyone holds the Hellenistic civilisation up as a paragon (which it wasn't), most of the Greek place and personal names stuck.