heres some extra biblical evidence, that the eyewitnesses testimonies collected in the bible, shouldn't be discardered arbitrarily and are accurately recorded history.
http://www.leaderu.com/theology/burialcave.html
the manuscript is entitled
Gli Scavi del Dominus Flevit, (1958)
*grumble*
The Bible is a collection of many books, written by many authors, over a few millennia. I have never had any doubt that some of it is genuine history, some of it recorded only 70 years or so after the fact. It would be as if today we wrote down the story if the crash of the Hindenberg, with no pictures, no movies, nothing prior written down, but merely from stories our parents generation told us who witnessed it personally. The story would be fairly accurate, but not perfect, just as the Gospels have slight differences between them.
But what human witnessed the events in Genesis? Obviously, none. Who wrote Genesis? No one has any idea. At best case, one could make the claim that it was inspired by direct revelation from God. All kinds of people have made claims of divine revelation over the centuries. Some might be believable, some are not. The creation account in Genesis, given the massive amount of physical history evident in the earth itself, is not believable.