Si loo soo saaro calaamad cad oo laga helayo goobta dagaalka eey, taranka waxaa loo kala qaybiyay American Pit Bull Terrier iyo American Staffordshire Terrier. Qaybta magaca "Staffordshire" waxay ka timid meesha uu ka yimid ee England. Sannadkii 1936-kii, Naadiga Kennel ee Maraykanka ayaa si rasmi ah u aqoonsaday heerka taranka Maraykanka ee Staffordshire Terrier. Ujeeddada taranka Amstaff-ku waxay ahayd in laga fogaado dagaalka eeyaha iyo in taranka laga dhigo mid xiiso leh bandhigyada. Tan iyo Janaayo 1, 1972, taranku wuxuu qayb ka ahaa FCI Group 3 "Terriers" waxaana loo qoondeeyey Qaybta 3 "Bull Terriers". Jarmalka, Amstaff waa dhif in maanta laga helo, maadaama ay caan ku tahay "eyga dagaalka" gardarrada ah.
Hoos waxaad ka heli doontaa 10ka tattoo ee ugu fiican Staffordshire Bull Terrier: