where did the term pit bull come from
Pit bull The term pit bull is often used loosely to describe dogs with similar physical characteristics, and the morphological (physical) variation amongst "bully breed" dogs makes it difficult for anyone, even experts, to visually identify them as distinct from "non-pit bulls".[7][8][9] While mixed breed dogs are often labeled as "pit bulls" if they have certain physical characteristics such as a square shaped head or bulky body type,[10] visual identification of mixed breed dogs is not recommended by the scholarly community.[7]