You know Santa Claus, Cupid and the Easter Bunny. But you don't know Professor Birthday. And that is devastating. She creates every birthday party all around the world - and she deserves a little credit. "Why is a 'Professor' in charge of birthdays," you might ask. That's a rude question. Would you ask Cupid why a half-naked baby who shoots arrows runs Valentine's Day? What you don't know about...