The bull-and-terrier was a breed of dog developed in the United Kingdom in the early 19th century for the blood sports of dog fighting and rat baiting, it was created by crossing the ferocious, thickly muscled Old English Bulldog with the agile, lithe, feisty Black and Tan Terrier. I have a black king fisherman and we been together since he was a baby and is now 6 years old and still doing great wish yall can see pictures of him, he is beautiful.