The first stage of construction: Emperor Jianwen burned down.
According to historical records, the then Emperor Wen Jian was forced to commit suicide in the Forbidden City of Ming Dynasty because of his lack of influence. Before committing suicide, Emperor Wen Jian put himself in the main hall of the Ming Dynasty and set a fire. Finally, he and the main palace were destroyed by fire.
The second stage of construction: the Qing army entered the customs and destroyed it.
After the Qing Dynasty entered the customs, many historical and cultural sites were destroyed step by step from north to south. When the Qing army invaded Nanjing, the palace was destroyed in fierce fighting between the two sides because of resistance. After the Qing army invaded Nanjing, it did not set its capital in Nanjing, but in Beijing, and then established its own palace. The Qing Dynasty has a history of several hundred years. During these hundreds of years, the Forbidden City in Nanjing during the Ming Dynasty was not well protected and gradually fell into disrepair.
The third stage: the plunder of Taiping Heavenly Kingdom.
The Taiping Heavenly Kingdom Movement fought all the way from Guangdong to Nanjing, and finally launched the Tianjing Incident, taking Tianjing as the capital and establishing its own palace here. However, this incident was a devastating event for the Forbidden City in the Ming Dynasty. In order to build its own palace, the Taiping Heavenly Kingdom desperately searched for useful things from the Forbidden City in the Ming Dynasty.
The fourth construction stage: excavation in the Republic of China.
During the Republic of China, because a quarry was built next to the Ming Palace in Nanjing, it was almost arbitrarily excavated next to the Ming Palace, and finally the palace disappeared from the world's sight.