The first mention of the Icelandic dog dates back to the 10th century. Moreover, she is often associated with the Vikings, who used these clever four-legged animals as shepherds for bulls. This explains the innate vigor and intelligence of the breed. Unfortunately, the 19th-century Icelandic plague nearly ended the existence of these dogs. However, in the twentieth century, some connoisseurs took up its revival, and not without success.