Did the early Christian communities apply Jesus's teaching to the problems they faced or alter the facts to fit their agendas?

In this video, Richard Bauckham considers whether we can know who were the main witnesses behind the Gospel accounts of Jesus's life.

The way the Gospel accounts use the right names for people shows that they were about real people, based on reliable information.

The way the Gospel accounts use correct place names shows that they were based on reliable information from first hand testimony.

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

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

The Jewish Bible contains over 100 promises about an exceptional person who would come to save the world. But what were the chances that…

Are the Gospels full of contradictions? What would have been seen as normal standards of trustworthy historical writing at that time?