In addition, Xu Yongde also did one thing, which is to trace the history of the Xu family.

The Xu clan is a descendant of Boyi, the leader of the Dongyi tribe, and in the Chinese surname culture, many have made their own surnames in fiefs or official positions. Back then, Boyi helped Dayu to control the water and made great contributions, so his son Ruomu became the monarch of Xu and experienced thirty-two generations. The state of Xu was centered on present-day Si County, covering the northwestern part of Jiangsu Province and the northeastern part of Anhui Province.

In fact, the genealogy compiled by Xu Yongde this time should be the sixth revision of the Xu family tree. More importantly, Xu Yongde also wrote the article "Six Cultivation Genealogy Preface", a 12-volume family tree, which not only includes the preface of the previous compilation of family trees, but also includes the "Xu Family Motto" written by himself on the basis of the original family motto.

在徐永德看來，徐家在歷史上曾有過輝煌，但是，一樣有出現過不孝子孫，他希望家譜的意義，不僅僅局限於人物信息的彙編，而是要讓這濃縮於家譜中的徐家七百多年的歷史以更好地姿態傳承下去。

In Chinese family culture, in addition to genealogy, it is the ancestral hall.

The ancestral hall that once enshrined the ancestors of the Xu family, although it no longer exists due to historical reasons, does not prevent the Xu family from remembering that period of history, as long as there is that respect in the heart, the spirit of the family will continue. Nowadays, the descendants of Gui Bagong are centered on the original site of the ancestral hall in Liubu Village, distributed in Lanzhen and Digang in Rudong County, and their number is about 4000-0 people.

As a retired teacher, why is Xu Yongde so obsessed with family tree cultivation?

He should have seen a kind of family cohesion from his clan, so he thought of inheriting the excellent qualities of his ancestors. Therefore, after repairing the family tree, Xu Yongde gave it to the clansmen for free. In his view, genealogy is the bearing of a family, and the descendants must be responsible and kind, so that the continuation of the family will have its value.