Zheng Dan: A famous woman in the late Spring and Autumn Period, during the war between wuyue and China, she worked alone as an internal force in the State of Wu, helping the State of Yue to successfully destroy the State of Wu and made great contributions. Zheng Guo: Korean at the end of the Warring States Period, a great water conservancy expert in ancient China. Zheng Guoqu is a famous water conservancy project built by Qin State, which makes Qin State rich and prosperous. Ji Zheng: A native of Huiji (now Shaoxing, Zhejiang Province), led troops to resist the invasion of Xiongnu, which was the beginning of establishing the capital of the Western Region in the Han Dynasty. Zheng Xing and Zheng Zhong: He is a father and son. As a scholar in the Eastern Han Dynasty, Xing made great contributions to the further development of Confucianism in the history of China, and was called "virtuous" by the world. Zi was a Confucian scholar in the Eastern Han Dynasty. He used to be a farmer and was familiar with Confucian classics such as Yi and Shi. Zheng: Zheng Daozhao and his son are both famous officials and calligraphers in the Northern Wei Dynasty. Zheng Daozhao is a "northern calligrapher" with the same name as Wang Xizhi and the originator of Wei Bei. Zheng Qian, a native of Xingyang, Zhengzhou, was a scholar and painter in the Tang Dynasty. Poetry, calligraphy and painting are both excellent, especially landscape painting, and Tang Xuanzong wrote the inscription "Zheng Qian's Three Musts". Author of "Tianbao Army Defence Record". Zheng Ze: A native of Xingyang in Sui Dynasty, he was knowledgeable and familiar with the clock rhythm. He took the Dadong clock rhythm test and wrote Yuefu songs and Yuefu tunes. Zheng Qiao, a native of Putian (now Fujian), was a famous historian and historian in the Southern Song Dynasty. His life is rich in works. Tongzhi, written in his later years, is another masterpiece of general history after Shiji, which is quite original. Zheng Xuan, a native of Gaomi (now Shandong) in the Eastern Han Dynasty, is known as "Hou Zheng". He is a master of Confucian classics in Han Dynasty, known as "Zheng Xue", and has made great contributions to sorting out ancient historical documents. Zheng Note: The original name of Shangshu in Tang Dynasty was Yu, and later it was changed to Zheng. In the Tang Dynasty, he was born in Yicheng, Jiangzhou (now the east of Yicheng, Shanxi). When he was young, he practiced medicine and sold drugs, wandering around the rivers and lakes. Because his original surname was Yu, and later he changed his surname to Zheng, people laughed at him with posthumous title and called him He Shui. Supplement: There is another Zheng Chenggong!