According to the records of the Heavenly Palace, Yuan Tiangang is said to be the son of Yang Jian, Emperor Yangdi, who was born at the beginning of the third year of Emperor Wendi (583). Because the Queen Dugu killed her mother, she was raised by the Yuan family. Later, she learned martial arts from Master Zhiren of Emei Mountain. Later, she met Li Bo, Li's father, and Sun Simiao, the drug king, and learned mathematics, medical skills and physiognomy. Later, she became a famous astronomer and geomantic master in the history of China. When Yang Di kept his post, he hated his unkindness and was recommended by Liu Wenjing, a scholar, to Li Yuan of Tang Wang. Liu Wenjing became one of the founding military advisers in the Tang Dynasty.
Extended data
Yuan Tiangang was a metaphysician, astronomer and mathematician in the late Sui and early Tang Dynasties. Legend has it that he is good at "learning from the wind", that is, depending on the wind and direction, he can judge whether it is good or bad, and he is tired or uncomfortable. He is also proficient in facial expressions, six rings and five elements. Sui was the official order, and Tang Wude was the order of Huojing County in Shu County. In the sixth year of Zhenguan, Emperor Taizong heard his name and wrote to North Korea, and was accepted as a think tank. In the eighth year of Zhenguan (634), at his request, Emperor Taizong reinstated his post of Huojing county magistrate and sent him back to his hometown. In the same year, Yuan Tiangang died.
Personality achievement
Yuan Tiangang has written many books on physiognomy, gobbledygook and geomantic omen, such as Nine-day Six-person Class in Xuan Nv, Five Elements of Physiology, Yi Yao, Three Dynasties of Physiology, Yuan Tiangang Bone Song and Taibai Club's Future, but most of them have been lost. He was ordered by Emperor Taizong to co-write with his disciples to discuss the historical trend. Perhaps the original name of TuiBeiTu is TuiTu of Bai Hui, Zhao Yuntong and Dai Ji.
References:
Baidu Encyclopedia-Yuan Tiangang