Which era were people were restricted to speak with simple words only?

I am not fully aware of what exactly happen in that story but the only thing that I remember is that the government was applying a restriction on peop

I am not fully aware of what exactly happen in that story but the only thing that I remember is that the government was applying a restriction on people speeches so they were not allowed speak difficult word and they were restricted specific and simple words that been approved from the government so people don't have any chance to riot or thinking about it. My question is which era was that or what people were applying this kind of punishment.

or:I am not fully aware of what exactly happen in that story but the only thing that I remember is that the government was applying a restriction on people speeches so they were not allowed speak difficult word and they were restricted specific and simple words that been approved from the government so people don't have any chance to riot or thinking about it. My question is which era was that or what people were applying this kind of punishment.

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