In what year did December 25 become the official celebration of the birthday of Jesus Christ, or Christmas?
Answer 336
It was not until 336 A.D. that December 25 began to be celebrated as the birthday of Jesus Christ, becoming the holiday of Christmas. Prior to that, Christmas was not observed, with most celebrations centered on Epiphany (the day the magi arrived on January 6) and Easter. Many historians believe that Jesus was not born on December 25 but that the day was used to coincide with the pagan festivals of Saturnalia to assist in the adoption of Christianity in the Roman Empire.
Asked by Kendra Whitmire · Last updated 5 years ago · 13.4K views · SOURCE
