There’s an excellent article by William Tighe of Touchstone Magazine that answers that question. The answer is “no,” by the way.
Turns out the pagan “festival of the Sun” proclaimed by the Emperor Aurelian in 286 AD wasn’t appropriated by Christians. In the fact, the reverse is more likely to be true. It is likely Aurelian was trying to promote an obscure religious cult (his family had connections to the cult of the sun-god) by appropriating a day already in use by the Christian community who were already quite numerous in Rome.
– Rob Shearer
Christmas is not a pagan holiday at all… its a day for worshiping materialism under the guise of familial values. Lets give credit to where credit is due… all hail capitalism for perverting another good holiday.