In which dynasty did Shanxi Sophora japonica migrate?

Early Ming dynasty. The war caused many places in Shandong, Henan and Hebei to become no man's land. After the establishment of the Ming Dynasty, Zhu Yuanzhang ordered people to move from the densely populated Hongtong County to these places. Because it is difficult to leave their homeland, they are basically tied up and tied in the past. They only untie their hands when eating and going to the toilet. They call going to the toilet "relieving oneself", which is their origin.