Zheng Guo | |||||||||
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Traditional Chinese | 鄭國 | ||||||||
Simplified Chinese | 郑国 | ||||||||
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Zheng Guo (fl. third century BCE) was a Chinese hydraulic engineer who lived towards the end of the Warring States period. He is best known for designing the Zhengguo Canal,which was named after him. [1]
Zheng Guo was from the Han state. In the third century BCE,near the end of the Warring States period,the Qin state in western China was making aggressive advances towards the other six major states in the east. The Han state,which shared borders with the Qin state,heard that the Qin state liked to carry out large-scale construction works and projects,so they sent Zheng Guo to persuade the Qin state to build a canal connecting the Jing and Luo rivers to irrigate the Guanzhong plain and boost agricultural productivity. The plan was actually meant to distract the Qin state and keep it busy,so as to prevent it from attacking the other states.
During the construction phase,the Qin state discovered Zheng Guo's ulterior motive in asking them to build the canal,and wanted to execute him. However,Zheng Guo said,"I started as a spy working for the Han state,but once the canal is built,it is beneficial to the Qin state. Although I can prolong the Han state's existence by doing this,at the same time I am also helping the Qin state make a great achievement worthy of history." [2] [3] The Qin state agreed and ordered him to finish building the canal. Once completed,the canal and its irrigation works largely boosted agricultural productivity in the Qin state. [4]
In manga Kingdom,he was referred as "The man who solved the Qin problem of flooding".
Qin Shi Huang was the founder of the Qin dynasty and the first Emperor of China. Rather than maintain the title of "king" borne by the previous Shang and Zhou rulers,he assumed the invented title of "emperor",which would see continuous use by monarchs in China for the next two millennia.
The Warring States period was an era in ancient Chinese history characterized by warfare,bureaucratic and military reform,and political consolidation. It followed the Spring and Autumn period and concluded with the wars of conquest that saw the state of Qin annex all the other contender states by 221 BC and found the Qin dynasty,the first imperial dynasty in Chinese history.
Han was an ancient Chinese state during the Warring States period of ancient China. Scholars frequently render the name as Hann to clearly distinguish it from China's later Han dynasty.
Qin was an ancient Chinese state during the Zhou dynasty. It is traditionally dated to 897 BC. The Qin state originated from a reconquest of western lands that had previously been lost to the Xirong. Its location at the western edge of Chinese civilisation allowed for expansion and development that was not available to its rivals in the North China Plain.
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