What rhymes have China had since ancient times? What are the existing rhyme books?

Rhyme book, a book that arranges Chinese characters according to their pronunciation and rhyme. This kind of books are mainly written to distinguish and stipulate the correct pronunciation of words, and belong to the category of phonological materials. At the same time, it can explain the meaning of words and record fonts, and it can also play the role of a dictionary and dictionary.

The earliest rhyme books in China are Song edited by Li Deng in the Three Kingdoms Period and Yun Ji edited by Lu Jing in the Jin Dynasty. But these two books are long dead. Wen Jian Ji in the Tang Dynasty was sealed, saying that "tone category" is "based on five tones, and there is no department". Shu Wei's Biography of Chiang Kai-shek said that "Yun Ji" is "a separate article for court merchants and their feathers". What is the relationship between "Five Tones" or "gūng(gōng), Shang (sāng), Qi (zhǐ) and Yu (yǔ)" and the sound, rhyme and tone of later generations? Whether the system types of the two books are similar to those of later generations cannot be further studied. According to "Yan's Family Instructions and Phonetic Words", "Since then, phonological bees have gradually emerged, each with its own local style. What is certain is that the Six Dynasties was a period of great development of rhyming books, and many rhyming books appeared.

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