Christmas Festival

The term Christmas is a translation of the Old English version "Cristes Maesse" which literally means the "Mass of Christ".
It is a traditional holiday in Christian calender and the most auspicious Christian festival observed around the globe on December 25th with much fanfare.
December 25th is celebrated as the birth unniversary of Lord Jesus Christ, who is believed to be born on the same date at Bethlehem, the land of Jews. The festival is celebrated as a mark of respect to Lord Jesus, who is considered as the son of God and faunder of Christianity religion.

Christmas is basically celebrated by the Christians; but it is also observes as a day of celebration by other communities around the globe.
The modern Christmas is a product of hundreds of years of both secular and religious traditions from around the globe.

Merry Christmas

with all the best wishes