When did the earliest calligraphy come into being? Who are the famous calligraphers in the history of China?

Calligraphy can be traced back to Shang Dynasty, when seal script was used as a writing font, which can be traced back to the Warring States and Three Kingdoms periods. In the history of China, there was a calligrapher Wang Xizhi, who was a famous calligrapher in the Eastern Jin Dynasty. He is called a calligrapher, and together with his son Wang Xianzhi, he is called two kings. There was also an outstanding calligrapher and great patriot in the middle Tang Dynasty, Yan Zhenqing.