Why is Kuancheng accent different from Chengde?

Kuancheng accent is different from Chengde because a large number of immigrants moved in in ancient times. There are many immigrants in Hebei. In ancient times, people from many other nationalities moved to Hebei. During the Northern and Southern Dynasties, Wuhu moved in, and Hebei became the most important settlement. This was especially true in Liao, Jin and Yuan Dynasties. In the Ming Dynasty, Judy, the founder of Daming, moved the capital from Nanjing to Chang 'an. At this time, he followed a large number of people who migrated from the south, many of whom settled in Hebei. According to historical books, some Shanxi people moved to Hebei. Therefore, in Hebei, where there are both good and evil people, dialects are naturally noisy.