. Dae Jang Geum is based on the story of a strange girl, Xu Changjin, who appeared during the 1 1 emperor of Korea (1506 1544). Xu Changjin was born with a keen sense of taste and a gift for cooking and medicine. She entered the palace and became a maid-in-waiting. Originally, she had a bright future, but it coincided with the battle for the position of Shang Palace. She was implicated and fired. Although she was given the opportunity to study medicine, she still couldn't escape the court struggle with red walls and green tiles. After years of hard work, Changjin finally became the first third-rate female doctor appointed by the emperor in an era when men were superior to women, and gave her a word "big" to praise her achievements.

There is a book called "Notes of Li North Korea's National Medical Officer", which describes Chang Jin in detail and mentions her research in acupuncture and dietotherapy in about 250 words: "Today, a medical woman grew up and her surname died. At this time, people can't find it. In the eighteenth year of Emperor Zhongzong in the eleventh year, she was named Chang Jin ... In her dragon body, there was no medical woman treated by Emperor Zhongzong before. After' Tanluo Buqi Decoction' ... Park Shandao, a Confucian scholar in Hong Wen Pavilion, once wrote a poem saying: Tanluo was the first woman in the founding of the People's Republic of China, and she was a spunlace after the physician, and the imperial garden gave her apricot crown, making her a great scholar ... "Although there are not many words, from the records of two books, it is confirmed that Xu Changjin really exists. It is said that she was punished after the death of Zhongzong and was exiled to China. Later, the queen regained her identity and died in Mingzong 1566.

Dae Jang-jin is a real figure in Korean history, which is mentioned in the Korean King's Book, but only a few words are mentioned in the history books. His story mainly comes from folklore.