The linguistics of Philadelphia and the surrounding area are some of the best-studied in the world since UPenn pioneered the academic study of sub-dialects of A

The linguistics of Philadelphia and the surrounding area are some of the best-studied in the world since UPenn pioneered the academic study of sub-dialects of American English: https://en.m.wikipedia.org/wiki/Philadelphia_English https://en.m.wikipedia.org/wiki/Philadelphia_English