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Curious Kids: Why do we say ‘OK’?

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Why do we say ‘OK’? Of all the words in the English language, the word “OK” is pretty new: It’s only been used for about 180 years. Although it’s become […]