What is the origin of "Half Monument"?

In addition to these halls, there are more than 20 stone tablets in Zhenguo Temple, of which "half a stone tablet" is worth mentioning. Because the monument is incomplete, it is called a half monument. Measured by the width and thickness of the monument, the original monument was very high. The content of this monument has nothing to do with Zhenguo Temple. When Zhenguo Temple was completed, this monument was retrieved next to the temple. People wanted to make it into a monument, but they found that the calligraphy on the monument was very good, beautiful and vigorous, and they didn't want to destroy it at that time, so they saved it. After textual research, this monument is the epitaph of Liu Chong, the grandson of Liu Chong, the master of the Northern Han Dynasty, and has high cultural relics value.