Jurchen script
Even more importantly, in 1979 Chinese scholars Liu Zuichang and Zhu Jieyuan reported the ground-breaking discovery of an eleven-page document in the Jurchen script in the base of a stele in Xi'an's Stele Forest museum. This manuscript, containing 237 lines of Jurchen script (around 2300 characters), is thought to be a copy of "Nüzhen zishu" (, "Jurchen Character Book"), written by Wanyan Xiyin himself soon after his invention of the large-character script. According to its discoverers, this manuscript was a type of textbook, a list of large-script characters, each one usually representing a complete word. This is different from the epigraphic inscriptions, which also contain phonetic symbols.