Christmas is the popular known version of the term "Christ's Mass". It is an annual celebration wherein people all over the world celebrate the birth of Jesus Christ.
The birth of Jesus Christ to Mary and Joseph, in Bethlehem, is the fulfillment of the Messianic Prophecy found in the Old Testament of the Bible.
Traditionally, Mass is celebrated to commemorate the birth of Jesus Christ, our Savior. on the eve of December 25 every year.