What is Christmas?
Christmas is an annual holiday that celebrates the birth of Jesus. Traditions include the display of Nativity scenes, Holly and Christmas trees, the exchange of gifts and cards, and the arrival of Father Christmas (Santa Claus) on Christmas Eve or Christmas morning. Popular Christmas themes include the promotion of goodwill, compassion and peace.
The date as a birthdate for Jesus is merely traditional, and is not widely considered to be his actual date of birth.