The rhyming conventions of the new verse were being codified in the rime dictionary called the Zhongyuan Yinyun (1324). A radical departure from the rime table tradition that experienced progressed around the past centuries, this dictionary consists of a prosperity of knowledge within the phonology of Previous Mandarin. Additional sources https://mariomfuiv.wikijournalist.com/5035293/some_outlets_are_even_available_for_walk_in_viewing_options