They all agree on some facts. Good for them. Still, “False in one, false in all.”
So after that, you subtract the witnesses that are proven fabulists. What is left is what you know.
Your standard for history is so stringent that not a single soul in history would meet the standard. Look at the title of this thread. Your position is utterly irrational.
You know nothing - by your own admission.
You do NOT apply that same standard for 'believing' to the things you accept as you do to the things you reject.
You are only deceiving yourself.