The origination of this breed arose from the need to protect large estates from poachers in the 19th Century.  During this time in history, poaching was punishable by death and thus the poacher had nothing to loose and everything to gain by escaping the gamekeeper, even if murder was the only escape.  Thus the need arose for a tenacious protector of the gamekeeper; by mixing 60% Mastiff with 40% bulldog, mans finest friend was created—the Bullmastiff.   During the process of creating the bullmastiff, the best qualities of both breed were retained as well as new qualities were developed.  The bullmastiff was designed to be as powerful and as devoted as the English Mastiff of Old was known to be. The Reputation of the Old English was legendary on the battlefield; loyal to their masters in the rages of war, they were proclaimed an equivalent of ten men. 
This tenacity added to the bulldog’s traits produced a breed that does not understand the concept of coward.  The Bullmastiff is engraved with a loyalty that cannot be altered, is equipped with a muscular physic that forcefully knocks its prey to the ground, and is capable of securely holding its prey with out need to gasp for breath.  When you add to the list of attributes the coloring of reverse brindle, this powerful breed is rendered invisible at night.  While this list of  attributes qualified the bullmastiff to be respected and revered among dog breeds; the bullmastiff also posses character, love, devotion and a deep desire for socializing; thus, the bullmastiffs greatest accomplishment is it’s desire to be member of a family.

    In the 19th century gamekeepers’ dog shows were common place; as the gamekeeper was in a desperate search of a guardian.  It was through these shows that the bullmastiff received it recognition as the guardian dog of the night.  With the arrival of the bullmastiff, there was relief, as there was no other breed that was so finely tuned to this job.  Where most dogs bite on the attack, the bully simply runs full force at the target, lunges with all its power, and flies through the air ramming the poacher with it broad chest. Thus, the target is forced to the ground, stunned, as the bully gives no warning of it strategy of attack.  The poacher would fight the bullmastiff with instinctual ferocity knowing he must escape apprehension by the gamekeeper (the penalty was death by hanging).  The bullmastiff was designed to meet this challenge, as the breed is incapable of giving up; yet disciplined with the ability to abstain from seriously mauling or killing man.  The bullmastiff was a blessing to the gamekeepers, an answer to their prayers for protection, as it was common for a gamekeeper to be killed before the arrival of the bullmastiff.

    The English police took notice of the breed because of its ability to attack but not maul, and used the breed for police dogs.  For a time during the Mau Mau uprising in the 1950’s, it was fashionable and practical for colonist to bring over bullmastiffs for protection.  The bullmastiff became a legend as it protected family from bloodthirsty rebels, and if that was not enough the bully would guard the cattle from attacks from baboons, leopards, lynx and other large predatory animals.  This noble breed was created out of necessity, and because of its characteristics of strength, size, fearlessness, loyalty, devotion, affectionate, intelligent, social, playful and trainable this breed has carved a spot in the hearts of man.  Even when the necessity for a guardian is not needed, the bullmastiff drops his cape of superhero and undetectably resumes the role as a member of the family.