If we could find evidence for the many things mentioned in the Illiad: the ancient city of Troy, the war, some remains of the Trojan horse, historical evidence for the figures of Paris, Helen, Achilles, etc; would that be evidence for the existence of the Olympian gods?
I'd say no, as I think most probably would.
Now let's ask the same question concerning the Bible: would historical evidence of events, places, and persons mentioned in the Bible be evidence of the supernatural elements of the Biblical narratives; would it be evidence for the existence of the God of Israel?
If the Bible were demonstrated correct on a piece of historical detail, it would not be evidence for the particular claims of faith therein.
Likewise, if the Bible were demonstrated incorrect on a piece of historical detail, it would mean the particular faith claims are false.
Whether or not the core articles of faith of the Christian religion are true or not depend on certain things being historical; but it is not dependent upon every jot and tittle of the Bible being historically or scientifically inerrant.
Speaking purely from the perspective of faith, to make the truth of the Gospel dependent upon a perfectly historically and scientifically inerrant collection of texts is to build one's house upon a foundation of sand. As soon as a wave washes and some point of detail or minutia turns out to not be in place, the entire structure collapses. Biblical inerrancy is a faulty, flimsy, poor foundation for faith.
-CryptoLutheran