Ximen Bao

Ximen Bao was a prominent figure in ancient China, known for his dual role as a philosopher and a highly effective hydraulic engineer. Serving as a government minister and court advisor to Marquis Wen of Wei during the Warring States period, he championed rationalist principles. His most famous achievement was the abolition of the brutal practice of sacrificing young maidens to the river god He Bo in the county of Ye. This practice, used by corrupt officials and a shamaness to extort the populace, was ended by Ximen Bao's decisive and courageous intervention. Beyond his social reforms, Ximen Bao engineered a massive diversion of the Zhang River, creating a large canal irrigation system that significantly benefited the agricultural region of Henei. Although construction faced setbacks and took a century to complete, his vision transformed the land, ending floods and doubling crop yields, bringing peace and prosperity to the region. He is recognized as one of China's earliest and most influential hydraulic engineers.