Introduction to the ancient well: Since the Xiangjiakou ancient well was accidentally excavated, there has been constant controversy over the age of the well. One side said that it was the well of Xiang Yu's family during the Chu Kingdom, which shows that the Xiang family lived a prosperous life and had a large population, and they dug wells for their own use. One side thinks it is a Han well, because Xiang's home is located on the dragon's 23rd vein. After Liu Bang established the Han Dynasty, he sent people to dig this well, which meant to drive a nail on the dragon's vein to break its feng shui and spread rumors among the people. To ruin Xiang Yu's image.