The advent calendar is no longer in operation.
You open the first window of the advent calendar on the first day of December.
The origins of the Advent calendar come from German Lutherans who, at least as early as the beginning of the 19th century, would count down the 24 days of Advent physically.
To visit the advent calendar you have to come during December up to January 1st because the advent calendar starts on December 1st. If you want to find the advent calendar it's in Terror Mountain: Happy Valley and it's up in the top right corner to the left of the blue sign that says Ice Caves.
An advent calendar is a calendar, used to count down the days of advent, after each day of advent goes past the owner would open a window, revealing a hidden picture or gift each day.
number 24 is somewhere on the advent calendar so you will have to find it . sorry
who made the first advent calender and why
Advent always starts in November.
advent calendar
Advent
According to the related link, the Lego city 2010 calender will be out in September :)
It is believed the first printed advent calendar was made in 1908 by a Swabian parishioner, Gerhard Lang.