Re: Jesus Christ!
It was much easier to convince the Greeks and Romans who believed in mythical Gods like Zeus who comes to Earth and takes a human wife and has a Son Appollo, and many other Gods did that hence the doctrine that Jesus(PBUH) was Son of the one true God (NauzubillaH) was the same old Greek Mythology being perpetuated hence adopted by the Emperor of Rome.
And the old Pagan stories of sacrificing the virgin to save others from calamaties was also perpetuated this way.
If the Apostles of Jesus(PBUH) truely believed he was Son of the Almighty, don't you think they would have gladly died to protect him from the Roman soldiers, so out of guilt of not being able to save Jesus(PBUH) the Prophet from the Romans him being sacrificed for all sinners was an easy sell to those who sacrificed virgins.