The Yorkshire Terrier is a small dog breed of Terrier type, developed in the 1800s in the historical area of Yorkshire in England. The defining features of the breed are its small size and its silky blue and tan coat. The breed is nicknamed Yorkie and is placed in the Toy Terrier section of the Terrier Group by the Fédération Cynologique Internationale and in the Toy Group or Companion Group by other kennel clubs, although all agree that the breed is a terrier. A winning showdog and a popular companion dog, the Yorkshire Terrier has also been part of the development of other breeds, such as the Australian Silky Terrier. They are not good dogs for children because they are very fragile.