Some evidence that it came from a supernatural source, of course.
Thats a good one.
1) The periodic table would have been nice to have. The ancient writers would have been confused, but who cares, they got the miracles.
2) A crude picture of a DNA strand.
3) The exact distance from the center of the earth to the center of the moon on a precise day. margin of error +/- 1/4 mile
I'm certain if it came from god he could have chosen thousands of ways to offer irrefutable proof of authorship. Since it never came from him it's just another historical telling of the life and times of certain ancient peoples. Throw in some scare tactics a few questionable prophecies a miracle here and their and what do you have? A very very very long read. Like I always say if it takes you 100 words to say something that only requires 10 then your either handicapped or your trying to hide something.