Why do New Yorkers have an accent?

Why do New Yorkers have an accent?

According to Prof Labov, the NY accent originates from London. “”Back about 1800 all the major cities in the eastern seaboard of the United States began to copy the British pronunciation of not pronouncing the final ‘r’ as a consonant, saying ‘caah’ instead of ‘car’. Sep 1, 2010

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