This would appear to confirm that Christianity was generated up to 200 years after Christ appears to have lived if we believe the stories concerning historical Jesus.
This is true, because the Christians were persecuted during the first two centuries. All the original apostles were crucified or sent to prison; John. The records were purged in both Jewish and Roman documentation, to nip the mutual revolt, in the bud.
The ancient world had their own version of PC, 2000 years ago. Like the PC of the left today, destroying statues to hero of the past, once this purge is done, generations will forget about these people.
If Christianity had a been nothing but power play or fad, the human and record purge would have ended it there. But it touched a lot of people, in a very deep way, and a Renaissance begin in the 2nd century, to restore hat had been destroyed. This is still with us today. Christian nations would eventually lead and shape the world; manifest destiny.
If you look at the secular world, how many fads last for hundreds of years? Secular has flash in the pan. The things that do last are either creative or truthful, like art and science. The other things that last are connected to the main religions of the world. These touch the human psyche at a very deep level, beyond the fads.