The music industry over there seems to treat America like it's one territory even though they got offices in different parts of America - they're still quite sort of 'America is the territory.' ↗
But unlike European countries, America has never finished a map of the United States, only the eastern United States is covered and a few spots here and there. ↗
However, research in the years that followed found that in many of its important features, African American Vernacular English was becoming not less, but more different from other dialects. ↗