Kuti utore muganho wakajeka kubva paimbwa yehondo, rudzi urwu rwakakamurwa kuita American Pit Bull Terrier uye American Staffordshire Terrier. Chikamu chezita rekuti "Staffordshire" chinobva kunzvimbo yayakabva kuEngland. Muna 1936, American Kennel Club yakagamuchira zviri pamutemo American Staffordshire Terrier rudzi rwemhando. Chinangwa chekuberekesa Amstaff chaive chekutiza kubva mukurwa kwembwa uye kuita kuti rudzi rwacho runakidze kuratidzwa. Kubva muna Ndira 1, 1972, rudzi urwu rwave rwuri chikamu cheFCI Group 3 "Terriers" uye inopihwa Chikamu 3 "Bull Terriers". MuGermany, maAmstaff haawanzowaniki nhasi, sezvo inozivikanwa se "imbwa inorwa" ine utsinye.
Pazasi iwe unowana gumi akanakisa Staffordshire Bull Terrier tattoos: