Where did the Jesus myth come from?

[gomtuu77]

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?

The question is nonsensical. The vast majority of religious and secular scholarship for the last 2,000 years has not held the position that you assume in the question. That being the case, I would say that your ability to explain the Jesus Myth has probably failed befor it's begun. You've tied all useful limbs behind your back, shut your ears, plucked out your eyes, and become mute. If you want answers as to how the stories about Jesus came about, then I suggest you avoid assuming the nonexistence of the very events and corresponding material that might shed light on the origin of the stories.