At the end of the Eastern Han Dynasty, the world was in chaos. In the name of Emperor Wu of the Han Dynasty, Cao Cao conquered all directions, wiped out the separatist forces such as Er Yuan, Lu Bu, Liu Biao and Han Sui at home, surrendered the southern Xiongnu, Wu Huan and Xianbei abroad, unified the northern part of China, and implemented a series of policies to restore economic production and social order, which laid the foundation for the founding of Cao Wei. Cao Cao was the prime minister of the Eastern Han Dynasty before his death, then Wang Wei, and after his death, posthumous title became King Wu.
Cao Cao is good at writing poems, expressing his political ambitions and reflecting the tragic life of the people in the late Han Dynasty. He is ambitious, generous and sad. Prose is also neat, which opens and prospers Jian 'an literature and leaves precious spiritual wealth to future generations, which is called Jian 'an style in history. At the same time, Cao Cao is good at calligraphy, especially at carving grass. In the Tang Dynasty, Zhang Huaiguan named it a "wonderful flower" at the end of Shu.