The rhyming conventions of the new verse were being codified inside of a rime dictionary called the Zhongyuan Yinyun (1324). A radical departure from the rime table custom that experienced developed above the former generations, this dictionary has a wealth of data around the phonology of Old Mandarin. More sources https://everythingthathappensbetw21974.blog-kids.com/32940293/indicators-on-doesn-t-matter-you-re-speaking-english-you-should-know