Who were the calligraphers in Sui and Tang Dynasties?

The brave Zen master in Tang Dynasty and Sui Dynasty is another peak in the history of calligraphy, with constant classics and numerous calligraphers. In the early Tang Dynasty, Yu, Chu, Xue, Yan and Liu developed regular script to the extreme, and Yan's "Sacrifice to a Nephew" was praised as the second running script in the world. Zhang Xu and Huai Su developed cursive script to another peak. Sun Sun's artistic achievements and scores in calligraphy are of theoretical level, which is a classic example of cursive script in later generations. . . . .