Here is an article that I've found:"Long before there was ever an established guide dog program was developed, dogs have been aiding the blind. A wooden plaque from the Middle Ages portrays a dog leading a blind man with a leash. The first actual attempt to train dogs to aid the blind was made in 1780 at Les Quinze-Vingts hospital for the blind, in Paris. In 1788, Josef Riesinger of Vienna was able to train a dog so well that people often doubted that he was blind!..."
|