The Yorkshire Terrier often shortened as Yorkie is one of the smallest dog breeds of the terrier type, and of any dog breed. The breed developed during the 19th century in Yorkshire, England. Ideally its maximum size is 7 pounds (3.2 kg). A popular companion dog, the Yorkshire Terrier has also been part of the development of other breeds, such as the Silky Terrier. Most have a black and tan coat, but they are also known to have a silverish-grey or a blonde coat. Yorkshire terriers are playful and energetic dogs. They often exhibit separation anxiety when left alone, which is a reason that some owners keep two dogs.
The Yorkshire Terrier was introduced in North America in 1872 and the first Yorkshire Terrier was registered with the American Kennel Club in 1885. During the Victorian era, the Yorkshire Terrier was a popular pet, and show dog in England, and as Americans embraced Victorian customs, so too did they embrace the Yorkshire Terrier. The breed's popularity dipped in the 1940s, when the percentage of small breed dogs registered fell to an all-time low of 18% of total registrations.Smoky, a Yorkshire Terrier and famous war dog from World War II, is credited with beginning a renewal of interest in the breed.The AKC ranked the Yorkshire Terrier as the 6th most popular purebred in the United States in 2012 and 2013.