I want to write a novel. I want all the information about Chang 'an.

Chang 'an was an important city in China's history. It was known as the " Millennium Capital " and was located in Xi'an City, Shaanxi Province today. The following is some information about Chang 'an: History: Chang 'an was founded in 256 B.C. It was one of the most important cities in ancient China with a long history. In history, Chang 'an was the capital of the Tang Dynasty and an important center of Chinese culture and history. 2. Geography: Chang 'an is located in the center of the Guanzhong Plain, surrounded by mountains, Qinling Mountains and Huashan Mountains. The city center is located in the center of Xi'an, covering an area of about 103 square kilometers. 3. Culture: Chang 'an is an important center of ancient Chinese culture with rich historical and cultural heritage. Chang 'an City had many historical sites such as terracotta warriors, the Big Wild Goose Pagoda, the bell tower, and so on. These buildings and cultural relics were known as the representatives of Chinese cultural heritage. 4. Economics: Chang 'an was one of the important economic centers of ancient China, with developed agriculture, handicraft industry and commerce. There were many economic and commercial towns around Chang 'an City, such as Yanta Town and Qujiang Pool. The development and prosperity of these towns played an important role in the economic and cultural development of Chang' an City. According to historical records, the permanent population of Chang 'an was between 2 million and 4 million. It was one of the largest cities in ancient China. The above is some information about Chang 'an. I hope it will be helpful for your novel.