闘犬
In the United Kingdom, Bull-and-terriers were used in bloodsports such as bull baiting and bear baiting. These bloodsports were officially eliminated in 1835 when Britain introduced animal welfare laws. Since dog fighting is cheaper to organize and far easier to conceal from the law than bull or bear baits, bloodsport proponents turned to pitting their dogs against each other instead. Dog fighting was used as both a bloodsport (often involving gambling) and a way to continue to test the quality of their stock. For decades afterwards, dog fighting clandestinely took place in small areas of Britain. These dogs arrived in America around 1845 to 1860, where the dog fighting practice had continuity. On February 10, 1898, the breed was recognized by the United Kennel Club (UKC) named as American Pit Bull Terrier.