What is the legend of Li, the world's first legendary figure?

Li (602-670), a Taoist in the Tang Dynasty, was born in Yongxian County (now Qishan County, Baoji City, Shaanxi Province). A famous astronomer, mathematician and Yi-ology scholar, he is proficient in astronomy, calendar, Yin-Yang and Taoism, and is one of the authors of TuiBei Tu. Li has been smart and studious since childhood, reading widely, especially proficient in astronomy, calendar and mathematics. He is the first person in the world to grade the wind. His masterpiece The Second Self is the earliest monograph in the history of world meteorology. The TuiBei Map written by Li and Yuan Tiangang is famous for its accurate prediction.

Based on nearly forty years' observation and calculation, Li thought that Fu's Five-Tone Yuan Calendar was full of loopholes, and demanded that it be abolished, and another calendar should be made to make Linde Calendar, which was introduced to Silla (present-day Korea). After observing the state of trees being blown by the wind for a long time, he divided the wind into eight grades in his book Yi Si Zhan, and he was the first person in the world to classify the wind.

Qing? Lu Xinyuan: Although he is good at his skill, his works have repeatedly quoted classics, taking turning good as a warning, and Sitian's works are deeply rooted in the loss of the Sui family. Spring is far away from adjustable training, which is what Confucian scholars say and is beyond the reach of later warlocks.