What are the oldest records of the scriptures? I know…

What are the oldest records of the scriptures? I know New Testament is like 100 years? How close of records do we have to the actual books? What about archeological evidence for proof of the Bible?

Ps
Before Moses what was sin?
From Abraham to Moses what proof you have that it wasn’t just made up traditional?
We got proof the Jews were in Egypt? That they were slaves? Do the Egyptians mention how they got there?