Tell me something interesting about the humanities in old Beijing?

Juwan and jujube-the cause of the matter has to start from the beginning. Before liberation, my uncle lived in the eastern suburbs and planted dozens of jujube trees around the yard. At that time, the soldiers were in a panic, and almost all of them were cut down by soldiers as firewood. After liberation, the remaining trees flourished. Three years of natural disasters saved the lives of the second uncle's family. Unexpectedly, after ten years of turmoil, those jujube trees became capital.