Some doof on the internet tells you the central figure of western civilization is a Pagan myth, and you're going to take my word for it?  What, are you nuts?

Of course not.  You're not going to believe me, and you're not going to believe any agenda driven modern scholars. You're going to discover the facts for yourself, directly from the pens of the ancients.  Here's an important ancient sourcebook.

St. Justin Martyr the First and Second Apologies (Ancient Christian Writers, Nol 56)
by St. Justin Martyr

This 2d century Church Father's writing gives you a first hand look at early chruch theology and history. 

Since the original Pagan holy books were all burned by the Church, Justin's attacks on Pagan religions give important facts about ancient Pagan practices. And his famous sentence:

"... we propound nothing different from what you believe regarding those whom you esteem sons of Jupiter," [ First Apology, 21]

sends a powerful message across the centuries:  The very first Christians understood that Christianity was not new and not unique. 

And the good thing is, you don't have to believe me, you can read it for yourself. Available at amazon.com

St. Justin Martyr
Christian apologist, born at Flavia Neapolis, about A.D. 100, converted to Christianity about A.D. 130, taught and defended the Christian religion in Asia Minor and at Rome, where he suffered martyrdom about the year 165. Two "Apologies" bearing his name and his "Dialogue with the Jew Tryphon" have come down to us.