As soon as bull blood needed adding to a strain of working terrier,then you just knew the strain where not really workers.
what book did you read that in?-nothing wrong with a bit of bull in terriers -some come out a bit too big or too dog aggressive but that sometimes happens anyway-good cross when it works out-
It was never needed in decent working jukels,a quick fix that produces more for the wheelie bin than a working kennel.
Im only 32- how many centuries old are you? not having a go id say there was bull terrier of a kind in all of them long before we were born...Thanks for