The American Staffordshire Terrier, also known as the Amstaff Or Staffy/Staffie(in the United States of America), is a medium-sized, short-coated American dog breed. It is one of several breeds in the pit bull group.[2][3][4] In the early part of the twentieth century the breed gained social stature and was accepted by the American Kennel Club in 1936 and should not be confused with the Staffordshire Bull Terrier of the United Kingdom.[5]