Cao Cao, a native of Bozhou, Anhui Province, was an outstanding politician, strategist, calligrapher and writer in the late Eastern Han Dynasty, and the founder of Wei regime in the Three Kingdoms period. At the end of the Eastern Han Dynasty, with his wisdom and superb leadership skills, he defeated various governors and became a vassal by relying on the emperor. Although he didn't claim to be the emperor, he was better than the emperor, paving the way for his son Cao Pi to ascend the throne smoothly.
His main works are: rolling snow in calligraphy, while the tortoise is born in literature, etc.