Celebrated every year on December 12.
It is rumored that gingerbread houses were inspired by the fairy tale of Hansel and Gretel who found the edible cookies and candies house in the forest that turned out to be inhabited by a child eating old hag.
Soon after the book of the brother Grimm containing the fairy tale was published, German bakers started to bake little houses made of cookies.
Gingerbread was very popular for building edible houses because of the texture and taste which worked great together to build with and decorate with sugar.
Because of the decadent and also cosy nature of Christmas these houses became very popular during this season as they looked great presenting as a centerpiece for dessert or tea/coffee parties.