Did Binzhou people really immigrate from Shanxi Sophora japonica?

In any place, there are both locals and outsiders. There are a large number of Shandong immigrants in the northeast, and a large number of Shanxi immigrants in Shandong. Do you think Binzhou people are local or moved by Sophora japonica? Was Binzhou uninhabited before the migration of Sophora japonica? Have you seen the history of Binzhou? As early as the Neolithic Age, people lived here, and it was one of the birthplaces of the Yellow River culture and Qi culture. It is not known who immigrated in the future.