American and British spelling differences

American and British English spelling differences are one aspect of American and British English differences. In the early 18th century, English spelling was not standardised. Different standards became noticeable after the publishing of influential dictionaries. Current British English spellings follow, for the most part, those of Samuel Johnson's Dictionary of the English Language (1755). Many of the now characteristic American English spellings were introduced, although often not created, by Noah Webster in his An American Dictionary of the English Language of 1828.
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