(2) Jia Ming (1279— 1368), a native of the Yuan Dynasty, wrote in "Notes on Diet" that "groundnuts are sweet, slightly bitter, flat, taro-like, and children eat too much, and qi stagnation is hard to disappear ...". The contents in Dietary Instructions are all from various herbs. The book should be written in the middle of14th century, and the sources cited should be earlier than the book.
(3) Mao Lan (1397 ——1476), a Ming Dynasty man, wrote a book about peanuts in "Southern Yunnan Materia Medica", which was written in the middle of15th century.
(4) There is a peanut entry in Changshu County Records (1503), which says, "Peanuts are planted in March, and the vines are not very long. Clouds often fall to the ground, and they are also born in the soil, hence the name, and they are delicious when exposed."
(5) There are descriptions of peanuts in Shanghai county annals (1504) and Gusu county annals (1506).
(6) Zhao Xuemin, a native of Qing Dynasty, made a detailed textual research on groundnuts in Compendium of Materia Medica written by 1765. The book quotes the narrative about peanuts in Youyang Miscellanies of the Tang Dynasty, and holds that peanuts were cultivated in the Tang Dynasty.
(7) In the Qing Dynasty, Tan Cui wrote in Zhi Heng, Yunnan Province 1799: "Peanuts were the first in the South China ... During the Song and Yuan Dynasties, it was estimated that Guangdong planted cotton, cucurbits, sweet potatoes, etc ..." and "... cotton, cucurbits, taro and peanuts were introduced to China at the same time". This shows that peanuts were cultivated in the Song Dynasty and the first year of China (that is, around AD 1000) and were obtained from Nanyang Islands together with sweet potatoes and other crops. Objectively speaking, there are not many ancient natural science books in China, especially those related to agriculture. There are no records about peanuts in Compendium of Materia Medica by Li Shizhen (1578) and Agricultural Administration Encyclopedia by Xu Guangqi (1628) in the late Ming Dynasty. The reason may be that peanut was not a widely planted and utilized crop in China in the late Ming Dynasty. The description of peanuts in Youyang Zayu in the Tang Dynasty is the earliest and clearest written record, but there are no written descriptions of peanuts in several different versions of the book, so it remains to be verified whether the description of peanuts in the book comes from the original version of the Tang Dynasty. Earlier documents, such as Nancaomu (304) written by Han Ji in the Western Jin Dynasty, described the "chitose son" with the same characteristics as peanuts, while Taipo County Records compiled by Guangdong in the Qing Dynasty called chitose son peanut, and the name of chitose son was first found in the Han Dynasty document Sanfu Huang Tu. From the above limited written records, it can be shown that peanut cultivation and written materials existed in China before the middle of14th century, without considering some uncertain parts for the time being. Columbus discovered America as 1492, and peanuts were not recorded in European literature until 1535.