Jesus was a knew invented god modeled after Serapis, if fact his cult was the start of Christianity. They added elements of other gods like Dionysus and Mithra to the mix to gain followers. Serapis was already a mix of Egyptian and Greek gods and they just took it a step farther with Jesus. Most of Christianity is modeled after the Egyptian religions.
Some of the elements of the uprising in Jerusalem and some of the people involved have been written in to the gospels to give them some elements of reality but none the less Jesus the deity was and is a fabrication.