Why do we celebrating birthdays?
Why do we celebrate birthdays?
The idea of celebrating the date of your birth is a pagan tradition. In fact, many Christians didn’t celebrate birthdays historically, because of that link to paganism. 
The ancient Greeks believed that each person had a spirit that attended his or her birth, and kept watch. That spirit “had a mystic relation with the God on whose birthday the individual was born,” says the book The Lore of Birthdays. 