So I repeat the question: give me ONE example of a FACT that was unknown at the time of Jesus, but that is common knowledge today, and accepted as a FACT; perhaps something Jesus revealed which was something ONLY the Son of God could know... - adamah
That is easy. He predicted the destruction of the temple in Jerusalem, which occurred almost 40 years later. Of course, the story is told in a gospel supposedly written after the destruction of the temple, and that story is used to date the writing of the scripture. Then again, if Jesus really did predict the destruction of the temple, that is not a valid way of dating the writing of those scriptures.
Establishing verifiable facts is difficult with any historical event. Study ancient greek history. There is all sorts of academic debate on historical events and figures even without supernatural phenomena. Unfortunately when studying history, you have a single unique event which is often recorded by biased writers decades later. You can conduct all the critical analysis that you want. Ultimately, you just will never know what actually happened. You just pick a version of the story that you believe.