Why gabrovo locals tell jokes?

The House of Humour and Satire in Gabrovo is unique in its nature. It is the only museum in the world devoted to humour.
The museum was opened on 1 April 1972. It is a successor of the local folklore humour and the jolly carnival traditions of Gabrovo, the Bulgarian capital of humour. Today it is an international cultural centre that successfully combines the features of a museum and a busy gallery where examples of the art of humour and satire from all around the world are gathered together. The motto of the museum is: “The World Survived because it Laughed.”