Documentary introduction: Three films record the changes in Changzhou: the documentary "Hometown of Local Chronicles" uses the freehand tone of traditional Chinese painting to tell the historical achievements and national influence of Changzhou as the "Hometown of Chinese Local Chronicles"; "City Chronicles for a Thousand Years" uses time to Using clues and digital models as a means, it dynamically demonstrates the territorial evolution and city wall changes of Changzhou from Kaiyi to the Qing Dynasty for more than 2,000 years; "Aerial Photography of Changzhou" is provided by the aerial photography team led by Mr. Lu Zhigang of our city, which is beautiful and shocking.