Like the pit bull, bulldogs were originally bred to help butchers control livestock, although bulldogs most likely predate pit bills, with a history that can possibly be traced back to the 5th century in England and a breed called the Alaunt. By the 15th century, in addition to catching horses, cattle, and boars in legitimate (if dangerous) farming use, bulldogs were also used in the barbaric “sport” called bull-baiting, in which trained dogs would latch onto a tethered bull’s nose and not let go until the dog had pulled the bull to the ground or the bull had killed the dog. Over the course of 350 years, until bull-baiting was banned in 1835, bulldogs were bred for aggression, and an 80-pound dog could easily bring down a bull weighing close to a ton by corkscrewing its own body around its neck, tossing the bull over its own center of gravity.
for more info check : https://www.cesarsway.com/about-dogs/breeds/the-history-of-bulldogs
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