LOL, no. I’m afraid the Roman mythos far predates Christianity.
Layman is correct.
That Roman mythos predates Christianity with regards Christmas IS the myth.
From “
Mary Mother of the Son” by Mark Shea :
*"The definitive “Handbook of Biblical Chronology” by Professor Jack Finegan cites an important reference in the “Chronicle” written by Hippolytus of Rome, 3 decades before Aurelian launches his festival. Hippolytus said Jesus’s bith “took place eight days before the kalends of January” that is Dec 25.
Tighe said there’s evidence that as early as the second and third centuries, Christian sought to fix the birth dates to help determine the time of Jesus’ death and resurrection for the liturgical calendar - long before Christmas also became a festival.
In short, there was agitation in the early Church concerning not Jesus’s birthday but the day upon which the historical Good Friday and Easter fell. In the Eastern Church, the tradition focused on April 6 as the date for the original Good Friday, while in the western Church it was widely held that the date was March 25.*
**Why does this matter? ** Tighe continues:
At this point, we have to introduce a belief that seems to have been widespread in Judaism at the time of Christ, but which, as it is nowhere in the Bible, has completely fallen from the awareness of Christians. The ideas is that of the “integral age” of the great Jewish prophets: the idea that
the prophets of Israel died on the same dates as their birth or conception.
This notion is a key fctor in understanding how some early Christians came to believe that December 25 is the date of Christ’s birth. The early Christian applied this idea to Jesus, so that March 25th and April 6th were not only the supposed dates of Christ’s birth but of his conception or birth as well. There is some fleeting evidence that at least some first century and second century Christians thoguht of Mar 25 or April 6 as the date of Christ’s birth,
but rather quickly the assignment of March 25 as Christ’s conception prevailed.
It is to this day commemorated almost universally among Christians a the Feast of the Annunciation, when the Archangel Gabriel brought the good tidings of a saviour to the Virgin Mary, upon whose acquiescene the Eternal Word of God (Light of Light, True God of True God, begotten of the Father before all ages forthwith became incarnate in her womb. What is the length of pregnancy? Nine months. Add nine months to March 25th and you get December 25th. Add it to April 6th and you get January 6th. December 25th is Christmas, January 6th is Epiphany.
***And because these traditional, albeit competing birth dates were already being revered in the rapidly growing Church, the emperor of a failing pagan empire instituted the Feast of the Unconquered Sun not only as an “effort to use the winter solstice to make a political statement, also almost certainly [as] an attempt to give a pagan significance to a date already of importance to Roman Christians”
***…
That Christmas was a pagan festival was actually a lie that Paul Jablonski (a German Protestant) perpetuated in a desire to show the paganization of Catholic Christianity.