The American Staffordshire terrier is a medium-sized, short-coated American dog breed. In the early part of the twentieth century the breed gained social stature and was accepted by the American Kennel Club as the American Staffordshire Terrier in 1936.[2] The name was changed to reflect difference from the Staffordshire Bull Terrier of England.Also, the description "Staffordshire terrier cross" is frequently a euphemism for a dog such as the American Pit Bull Terrier. However, the Staffordshire bull terrier, like all dog breeds, is capable of dangerous behavior.мне все таки кажется, что даже не смотря на общих предков,  в данный момент породы это разные, а не одно и тоже название одной породы ИМХО от прочитанного