An Advent calendar with a nativity scene behind the 24th door, surrounded by other Advent, Christmas and Christian symbols
An Advent calendar is a special calendar used to count the days of Advent in anticipation of Christmas.[1] Since the date of the First Sunday of Advent varies, falling between November 27 and December 3 inclusive, many Advent calendars, especially those that are reusable, often begin on December 1, although those that are produced for a specific year often include the last few days of November that are part of the liturgical season.[2][3] The Advent calendar was first used by German Lutherans in the 19th and 20th