2. Weibei is the general name of the characters and stone carvings of the Northern Dynasties in China (420-588 AD), with the Northern Wei Dynasty as the most refined, which can be roughly divided into four types: stele inscription, epitaph, statue inscription and cliff stone carving. Calligraphy at this time is a transitional calligraphy system, connecting the preceding with the following and opening up the future. Zhong Zhishuai said that Weibei can see the old norms of Han and Qin dynasties, and Sui and Tang dynasties can observe them.