Erm ok, whatever.
But there is pretty good proof that there was a guy named "Jesus of Nazareth" that lived about 2000 yrs ago who was tortured and crucified by the Romans in Jerusalem.
The rest is what everyone argues and fights over
edited to add:
(If I'm being 100% correct, His name was Yeshua. "Jesus" is then anglicanished version. Say "Jesus" in ancient Palistine and you would get blank stares.)