When Emperor Constantine became a professing Christian, he was influential in instituting the Christian feast of "the birthday of the Sun of righteousness"  (Malachi 4:2) as an alternative to the pagan festivities then in practice.  This points to the Christian triumph over paganism.

           By the end of the fourth century, the "Feast of the Nativity of Christ" or the "Christ Mass" was celebrated throughout most of the Christian world.

          Secular traditions and excesses eventually dominated, causing Christians to be wary of the celebration.  In the 1640's, Puritans in England actually outlawed the celebration of Christmas.

          Today, some Christians in other parts of the world celebrate Christmas on January 6.

          Christmas Day became a legal holiday in all states in the USA between 1836 and 1890.

           We don't know when Christ was actually born.  But it is good to have a set time for such an important event.  The Bible says, "Some of the Lord's followers think one day is more important than another.  Others think all days are the same.  But each of you should make up your own mind.  Any followers who count one day more important than another day do it to honor their Lord"  (Romans 14:5,6 CEV).