Mapping of dialectical differences through out the United Sates
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Check out these 22 maps highlighting the diversity of the English language from region to region in the United States!

http://www.businessinsider.com/22-maps-that-show-the-deepest-linguistic-conflicts-in-america-2013-6#some-of-the-deepest-schisms-in-america-are-over-the-pronunciation-of-the-second-syllable-of-pajamas-9

http://www.businessinsider.com/22-maps-that-show-the-deepest-linguistic-conflicts-in-america-2013-6#some-of-the-deepest-schisms-in-america-are-over-the-pronunciation-of-the-second-syllable-of-pajamas-9