The first English dictionary came out in 1604. There are just about 3,000 difficult words in the dictionary. The writer of the dictionary is Robert Cawdrey. He didn’t put every word in his dictionary. He said no one would look up a word that he had known its meaning in a dictionary.
In 1755, Samuel Johnson wrote the first modern English dictionary. He put in his dictionary all important words, both easy and hard. He also gave good sentences to show how to use each word.
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