Where did the Jesus myth come from?

[kılıç_mehmet]

Jesus was not a real person, so where did this Jesus myth come from? Was it based on a single other faith? Was it a combination of other faiths? Or was it completely invented out of nothing?

You start off with proclaiming that Jesus was not a real person.
Well, since you know that much, I believe that you should be able to tell me where the Jesus myth comes from, oh great scholar?