Which breed was originally bred to fight bulls but is now known as a loyal companion?

The story behind the answer

Bulldog is correct: the English Bulldog was developed in Britain for bull-baiting, a brutal sport where dogs latched onto a bull’s nose. Their low center of gravity, massive head, and undershot jaw made them effective; after bull-baiting was outlawed in 1835, breeders selected calmer temperaments. Today’s Bulldogs are gentle, loyal companions. By contrast, Boxers were German working dogs, Bullmastiffs guarded estates, and Pit Bulls were bred largely for dog-on-dog fighting, not bulls.

Fun context: the Bulldog’s stubborn courage evolved into a symbol of British “bulldog spirit.” Memory tip: the name tells the tale—Bulldog baited bulls. Modern Bulldogs can have breathing challenges due to their short muzzles, but they’re renowned for affectionate, steady temperaments with families.