Where did Cai Wenji dictate ancient books?

This man is Cai Wenji. In order to save her husband Dongsi, she turned to Cao Cao for help. Cao Cao appreciates Cai Jiazang's ancient books very much, but these books that have been in war for years have been scattered. Fortunately, Cai Wenji has an amazing memory. He wrote down these ancient books one by one. Cai Wenji's father, Cai Yong, was a famous writer in the Eastern Han Dynasty. His family has a rich collection of books. Cai Wenji has read widely since he was a child. At that time, Cao Cao often visited Cai Yong and asked about his study. With the passage of time, he and Cai Wenji became very familiar, and they became brothers and sisters. ?

Later, the war broke out and the Huns attacked the Central Plains. His father died in the war, and Cai Wenji was also captured by the Huns and forced to marry Zuo Wangxian as a concubine. Although the Huns were well fed and clothed, Cai Wenji deeply missed the Central Plains every day in Lacrimosa. At this time, after years of hard work, Cao Cao has become a powerful Cao Sikong in the ruling and opposition parties. After hearing the news of Cai Wenji, he decided to help her, so he sent messengers to Xiongnu with a lot of gold and silver. After many negotiations, he finally redeemed Cai Wenji. ?

Cai Wenji returned to the Central Plains and wept with joy. She was very grateful to Cao Cao, who also decided to be a good man to the end, arranged a marriage for Cai Wenji and married her to Dong Si, a wasteland official. Although her official position is not high, she earns a lot of money, enough for husband and wife to live. After years of suffering, Cai Wenji's character has become docile and considerate. After marriage, the couple had a good relationship, but they made a mistake because of Dongsi's negligence. Cao Cao is famous for his strict management of the army. Cai Wenji saw that Dongsi's life was in danger and immediately entered the palace to plead.

She was in tears and asked Cao Cao to let Dong Si go. Cao Cao felt it was a pity and gave her a chance to do good and atone. It turned out that all the books that Cai Fu once treasured were destroyed by the war, which made Cao Cao very sad. Knowing that Cai Wenji had read these books repeatedly, he was sure to have an impression, so he ordered her to write from memory. Cai Wenji immediately agreed, then spent several days writing hundreds of articles from memory, and finally saved her husband's life.