sentences:  In 1755 Samuel Johnson published his "A Dictionary of the English Language" which introduced standard spellings of words and usage norms.In 1828, Noah Webster published the "American Dictionary of the English language" to try to establish a norm for speaking and writing American English that was independent of the British standard.Within Britain, non-standard or lower class dialect features were increasingly stigmatised, leading to the quick spread of the prestige varieties among the middle classes.