That the Exodus from Egypt happened.
That the Christian flight from Jerusalem happened.
What are your sources for this and have these been verified by sources other than Christian ones?
There WAS a Christian flight from Jerusalem.
But.... it's after most of the biblical writers were dead, and it wasn't
considered of significance to most Christians - Jesus said it would
happen, it happened, and that's that.
The account of Gallus and his defeat at Beth Horan is my own
suspicion - it doesn't matter one way or the other, but it's good to
think about the maybes.
Jewish presence in Egypt is
1 - under current Egyptian cities
2 - not going to promote any archaeologist's career in Egypt to bring it up as Egyptians hate the Jews
3 - Hebrews/Jews didn't build monuments to themselves
4 - the Jews in Israel spoke often of the event - they had nothing to gain by doing so.
We don't start getting read worldly data on things until the late Bronze, early Iron Age.
So early evidence starts coming in about the time of the Prophet rulers. The archaeology
at Shiloh as evidence of practices which hearken back to the law of Moses. And there's
the genetic line to Moses too.
But as for the miracles - no evidence, you take it on faith, or not at all.
But then, when some scientist says the universe created itself, from nothing and for no
reason - people take that on faith, too.