The Advent Calendar is believed to have been created by Christians in the early 19th century to mark the days of Advent leading up to Christmas. The Advent calendar counts down the 24 days of December ending on Christmas Eve. Advent calendars are a great way to engage your kids in the entire Christmas season by helping them channel their anticipation and excitement of Christmas Day while keeping that anticipation focused on the birth of the baby Jesus. It is a joyful and popular children's Advent activity that helps kids learn how to join with the Church in waiting, expectation, and preparation of the Advent season. Some Advent calendars have doors that open to reveal a symbol of Advent or Christmas, while others have symbols that are individually placed on the calendar for each day. Some special Advent calendars even have chocolates or other treasures hidden behind each door or window. Whatever kind of Advent calendar you choose, your child is sure enjoy this fun Christian tradition!