Some info about CHINESE
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HISTORY
Cao Mao ,[a] courtesy name Yanshi, was the fourth emperor of the state of Cao Wei during the Three Kingdoms period of China. He was a grandson of Cao Pi, the first emperor of Wei. Described as intelligent and studious, Cao Mao made repeated attempts to seize back state power from the regent Sima Zhao but failed. He was killed in an abortive coup d'état against Sima Zhao.
Wikipedia contributors, "Cao Mao," Wikipedia, The Free Encyclopedia,
ABOUT THE CHINESE LANGUAGE