Zheng Chenggong submitted a surrender letter to He Junyi, which said: "Taiwan Province Province, the land of China, has been occupied by your country for a long time. Since you have come to claim it,

Zheng Chenggong submitted a surrender letter to He Junyi, which said: "Taiwan Province Province, the land of China, has been occupied by your country for a long time. Since you have come to claim it, please give it back to me. " Why did Zheng Chenggong say that? In fact, this sentence asks why Taiwan Province Province has been the territory of China since ancient times.

Since the Yuan Dynasty, Taiwan Province Province has been the administrative region of China, and the Penghu Inspection Department is located in Taiwan Province Province. In the Ming Dynasty, Penghu Inspection Department was restored, and after Zheng Chenggong recovered Taiwan Province Province, one government and two counties were formally established. Taiwan Province government was established in the early Qing Dynasty, which was subordinate to Fujian Province. 1884, Taiwan Province province was formally established by the Qing government.

What Zheng Chenggong must be saying here is that he has always had jurisdiction over Taiwan Province Province since the Ming Dynasty, and Taiwan Province Province is not an independent part, but belongs to China.