I'm trying to grasp what you're asking, since you seem to be wanting scientific basis for historical things, which are two different disciplines. So after I write a little, you'll have to let me know if I touched on what you were asking or missed it completely.
There are hundreds upon hundreds of material or documentary corroborations for things the Bible talks about. Maybe thousands. A bulla with King Hezekiah's name on it. An inscription in Assyria telling of a battle the Bible also tells about. There are hundreds or thousands of these. Is that what you're asking?
The Bible is very evidentiary. God gave Moses evidence before He expected Moe to believe in Him. He gave evidences to the Israelites before He expected them to believe in Him. In the Bible, evidence always precedes belief. Look at the ministry of Jesus. He did miracles, and then He taught about faith. Because He healed people, others came to be healed because of the evidence. That's the way it always is. There's never any notion of blind faith or herd mentality. Is that what you're asking?
But then you mention "scientific basis" for truth. What are you asking—if science can prove theology? It can't, just as it can't prove philosophy or math. Those are different paths to truth.
If you want to talk about science, there is an organization of Christian scientists—some of the top scientists in the world, such as Francis Collins or Jennifer Wiseman (an astrophysicist in charge of the Hubble telescope). They have articles at
http://www.biologos.org. Is that what you're asking?
My faith is based on evidence. That's the nature of faith, and the nature of my belief. I guess we need to talk more.