The Crustie's history is not well-documented and it is suspected that the hybrid breed was developed in response to the designer dog trend of the last two decades. In the 19th century, it is believed that Scottish workers, moving because of the Industrial Revolution, brought a Paisley Terrier to England and he was used to catch rats and mice. In 1861, the first Yorkshire Terrier was developed and in 1872, the first Yorkshire Terrier Club was formed in England. In the same year, it is thought that the first Yorkshire Terrier was imported to the United States. Fans of the Yorkshire Terrier loved their knack for successfully hunting small animals and their clever spirit. The Chinese Crested Dog is a misnomer as the breed did not come from China. The breed is believed to have been developed in either Mexico or Africa. However, the modern Chinese Crested Dog was modified in China and shrunk in size. This breed was incredibly popular among all people of the population, including both emperors and common people. Additionally, Chinese sailors are believed to have kept them on ships for companionship and to help hunt vermin. In the 1700s, the Chinese Crested Dog is said to have made its way into Europe. The Chinese Crested Club was created in 1974. While this breed is considered rare in China now, it was favored as an alert and happy dog. His love for people and desire to cuddle allowed others to see his kindred spirit. His intelligence can be interpreted as less than intelligent due to his well-documented stubborn streak when it comes to being trained.