Qin and Han dynasties-spontaneous stage
Wei, Jin, Southern and Northern Dynasties-conscious stage (Chinese characters developed into conscious calligraphy art, and there was a "calligrapher" Wang Xizhi in the Eastern Jin Dynasty)
Sui and Tang Dynasties-Calligraphy reached a new peak (calligraphy theory became more and more mature, cursive and regular script).
Song Dynasty-Calligraphy art has its own system, pursuing individuality and ignoring statutes.
Ming dynasty-calligraphy was further popularized and secularized.