While many people celebrate the birth of Christ, the debate continues regarding the date of his birth. Christians know that the bible only supports the remembrance of Jesus's death, burial and resurrection. Which is why every first day of the week, Christians are commanded to celebrate the Lord's Supper, with the unleavened bread representing the symbolism of Jesus body which hung on the cross, and the fruit of the vine representing his blood which was shed. John 6:51, leaves us this message, "I am the living bread which came down out of heaven: if any man eat of this bread, he shall live for ever: yea and the bread which I will give is my flesh, for the life of the world." 
The link below examines an article which methodically examines the possible birth date of Jesus. This has been a long standing debate among many. The article also examines the celebration of Christmas. Whatever your views may be, this article seeks to put aside emotions and rely on historical information.
Please see this link: http://www.hebrew4christians.com/Articles/Christmas/christmas.html