I heard from a interdimensional traveller to this TL that "15th Year of Longyu" was also the name of a historical work by a Far Shore Chinese historian whom employed quantitative research in dissecting the eventual fall of the Dacin Ulus.
I wonder if the cause of Tiengued would be evangelised and crystalised as a native religion in China. Hong Rengan seemed to be doing a better job at making the Tiengued faith much more sophisticated in both the Chinese and Western contexts, while the early death of Yang Xiuqing made given the...