December 25, 337 is noted by some scholars as the earliest date that Christmas was celebrated on that particular date. No one really knows when Christ was born. The Bible prophesies in Isaiah and then later records the birth in the Gospels but not the date.
There are two issues that come to mind when thinking about Christmas. The first is if Jesus’ birth should be celebrated. I would think that as we celebrate each other’s birthdays, setting aside a day to honor us as individuals, we should set aside a day to honor Christ.
The second issue is when that should take place. To my way of thinking, it doesn’t make any difference. Here in the United States, we have traditionally celebrated Christmas on December 25 and that works for me. Since we don’t know the exact date of Christ’s birth, we choose to celebrate it on the 25th.
The importance of the event does not reside in the date but in remembrance of the Person of Christ–what He has done for us and what He continues to do.