before it appeared, the calligraphy style of inscriptions was only limited to seal script, official script and regular script, and there was never a running script.
The calligrapher of this tablet is Li Shimin, Emperor Taizong.
Li Shimin's calligraphy is also a master of two kings. The reason why Li Shimin promoted Wang Xizhi to the position of a "calligrapher" is that Wang Xizhi "has both strength and beauty, and will become a family", and he vividly turned the golden mean thought into calligraphy art.
Wang Xizhi's becoming a "book saint" should be said to be a historical choice, and Li Shimin complied with this historical trend.