Lanting is related to Wang Xizhi. On March 3rd, the 9th year of Yonghe in the Eastern Jin Dynasty (AD 353), 4/kloc-0 people, including Wang Xizhi, Xie An and Sun Chuo, worked in Lanting (now Shaoxing, Zhejiang). At the meeting, they wrote their own poems, and Wang Xizhi wrote a preface for their poems. The Preface to Lanting Collection narrates the beauty of landscape and the joy of gathering around Lanting, and expresses the author's feelings of impermanence of life and death. The Handed down Book of Fattie, with 28 lines and 324 words, is a masterpiece of his middle age with perfect composition, structure and brushwork. Building a lake has something to do with Ma Zhen. There is a tomb of Ma Su on the east bank of the lake. He mobilized the people to build water conservancy projects, but he offended the gentry and was falsely accused of capital punishment. In the future, people will try to bring his body back and bury it on the shore of Jianhu Lake, build a tomb and a temple, and make a permanent sacrifice. The tomb is under the bridge across the lake in the east of Jianhu, with Jianhu behind and wilderness in front. There is a stone square in front of the tomb, engraved with four big characters: "Tomb of King Liji" ("King Liji" was given by Renzong in the Northern Song Dynasty). Hope to adopt, thank you.