The Forbidden City was founded in 1406 (the fourth year of Yongle) and basically completed in 1420 (the eighteenth year of Yongle), lasting 14 years. It was built by Judy, the founding emperor of the Ming Dynasty, on the basis of the palace of the Yuan Dynasty. It covers an area of 720,000 square meters (96 1 m long and 754 m wide), with a building area of155,000 square meters. It was built by the Ming Emperor Judy and designed by Kuai Xiang (1397- 14865438, Suzhou native), covering an area of 780,000 square meters.

During the 500 years from the completion of the Forbidden City to the abdication of the Qing emperor in19/2, 25 emperors had or had the temple name of posthumous title (including 24 emperors recognized by the Ming and Qing dynasties, and one prince Zhong Rui who was later deposed by Shunzhi). It is synonymous with the highest ruling core of Ming and Qing Dynasties.

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The history of the Forbidden City:

After the completion of the Forbidden City, the court history of the Ming and Qing Dynasties was more than 500 years, including the activities of queens, hierarchy, power struggles, religious sacrifices and so on. In the 18th year of Yongle (1420), Beijing Palace was completed. The following year, a fire broke out and the first three halls were burned down. In the fifth year of orthodoxy (1440), the first three halls and Gan Qing Palace were rebuilt. In the third year of Tianshun (1459), Xiyuan was built. After four generations of Yongle, Hongxi, Xuande and Orthodox, it lasted for 20 years. ?

In the thirty-sixth year of Jiajing (1557), a fire broke out in the Forbidden City, and the first three halls, Fengtianmen, Wuwenlou and Wumen were all burned down. It was not until the fortieth year of Jiajing (156 1) that all the reconstruction was completed. During the Jiajing period, the names of the three halls in the Forbidden City were changed to Inner Palace, Relay Palace and Jianji Palace respectively.

References:

Baidu encyclopedia-forbidden city