The article explains the meanings of three ancient Chinese characters: "串", "患", and "古". It argues that the character "串" was used before the Western Han Dynasty, and that "患" and "古" are related to it. The character "患" means worried and is made up of the parts for heart and "串". Additionally, "古" is related to "串" and "mouth", representing the passing down of ancient knowledge through oral tradition. The article suggests that there may have been a Beaded Chronicle in prehistoric times.