Two scenarios that may/may not happen.

[Little Rik]

Of course the claim about Jesus must be a false claim even if somebody spread his teachings around the known world.
Probably some aliens came on planet earth to spread Christianity.  

Are you claiming to be an extraterrestrial alien, Rik?  What motivates you to spread the false claims you do?  

It would explain a lot but also leave much more unexplained such as "how did a dumbass like you get himself from gawd knows where to here"?

Go ahead Whatever and tell me about my false claims.