Did Jesus claim or imply that he was anything more than a prophet? Or did his followers transform him into the Son of God many years later?

This video describes the discovery of the earliest copy of part of John's Gospel, the 'John Rylands Fragment'.

How big are the differences between the hand-written copies of the Gospels' accounts of Jesus? Do these undermine what we can know about…

Were the Gospel accounts corrupted as they were passed on? Was there any way to prevent this happening?