The Olde English Bulldogge is a mixed breed that originated in Pennsylvania. David Leavitt of Coatsville is credited with founding the breed, which he started back in the early 1970s. By crossing English Bulldogs with Bullmastiffs, American Pit Bull Terriers, and American Bulldogs, Leavitt’s goal was to create a Bulldog more similar in stature to the bull-baiting dogs of the 18th century, but without the aggression that was common in the breed back then.