Christmas calendar

The Advent Calendar (German: Adventskalender) is a special calendar in European countries that shows the time remaining until Christmas.
Back in the 17th century in Germany, the followers of the Lutheran Church invented something like a Christmas waiting calendar - they painted the required number of sticks on the walls in the house, erasing only one every day. The fewer sticks left, the closer the holiday was.
A little later, images of saints and biblical heroes began to be hung on the walls.
A close to modern Advent calendar appeared at the end of the 19th century in the same place in Germany.
Frau Lang was so tortured by her son Gerhard, who regularly asked his mother when Christmas would come, that she could not stand it and made for her son a special calendar made of cardboard with windows according to the number of days before Christmas.
Every day little Gerhard could open only one window, behind which were hidden small cookies. So the child could see how many days are left before the holiday.
When Gerhard Lang grew up, he commercialized his mother's invention - in 1908, the first batch of Advent calendars was released. These were boxes with windows, behind which candies were "hiding".
Soon the custom spread to other German-speaking countries (Austria, part of Switzerland). And already from the middle of the 20th century, millions of children and adults throughout Europe, shortly before the main holiday of the year, open the windows of their favorite Christmas calendar every day.