It is worth mentioning that, in the history of Lu Yi, out of respect for Laozi and Taoism, emperors in the Han, Tang, Song, Jin and Yuan Dynasties have always regarded Taiqing Palace as the birthplace of Laozi, built large-scale buildings and offered sacrifices, and the imperial monuments in front of Taiqing Palace have also been increased from generation to generation. At the same time, officials, gentry, scholars and people's Li also built monuments here. There are many inscriptions, praises, poems and songs, and there are many inscriptions in Taiqing Palace. Regarding historical facts and the rise and fall of the Taiqing Palace, stone tablets are the best evidence, and some of them are more valuable because they are written by great calligraphers. When Crown was building and restoring Lu Yi Brick City, it was "half-baked", and the stone tablets in the Han and Tang Dynasties were completely destroyed, with no survivors. What a pity!
After the storage of the simplest reservoir in the southeast of Lu Yi County, every rainstorm is a flood. In the sixth year (1572), the governor of Chu Jun opened 35 canals and irrigated 2,000 hectares of fertile land from Yan (now the border of Dancheng) to the east of Guliushi River and other places. From Yan Pidong to Shenzhong depression, more than ten ditches were dug, reaching Goulian River. From Duomudian to Mianzhongwa, more than ten ditches were dug to reach Hefei River. Tanggang (now Heihe) arrived in Huazijiawa eight miles after digging a ditch; From Hubalikou Ditching 10 to Cihe River, from Wangjiawa and Daijiawa Ditching for several miles to Tanggang, and so on, traffic jams are profitable.
In the first year of Wanli (1573), Chu Jun applied to the Ministry and was transferred to Bozhou. By the first year of Wanli, Bozhou began to open a big ditch, from the Cross River to Sanzhangkou, which was 48 Li long, 10 foot wide and 5 feet deep. Naturally, the accumulated water in Lu Yi reached the Huaihe River from Bo to Vortex and flowed for thousands of miles before the flood stopped.
The construction of water conservancy projects in Wang Guan has made great contributions to the people of Lu Yi. "Folk songs are more virtuous than the twelve canals in Ximen Bao."