The known history of the Bullmastiff begins about the year 1860 in England. The problem
of keeping large estates and game preserves free from poachers. They needed fearless
dogs that would attack on command, for those needs they crossed the Mastiff with
the Bulldog, the Mastiff was founded. Dogs of dark brindle color were preferred for
the work at night.
They were referred to as the Night Dog.
The English Kennel Club recognized the Bullmastiff as a purebred dog in 1924. The
American Kennel Club recognized the Bullmastiff in 1933.