Diggest Emperor Yu, First World Hydro Engineer Emperor Yu from China, was the first Hydro engineer in the world. He construct hydrologism of Yellow River (Huang He) The history of China reaches back over 5,000 years. In that time, China has created a culture rich in philosophy and the arts. China has seen the invention of amazing products and technologies such as silk, paper, gunpowder, and movable-type printing.We know of the legendary Emperor Yu through the story of China's Great Flood, a tale already ancient when first recorded around 1000 BCE (1). On page 579 of this issue, Wu et al. offer a provocative new explanation for this story. They present evidence for an enormous landslide dam break 1922 ± 28 BCE (2) that coincided with the major cultural transition from the Late Neolithic to the Early Bronze Age in China and that also helps explain curious details of Yu's story. During the reign of Emperor Yao, the Chinese heartland was frequently plagued by floods that prevented further economic and social development. Yu's father, Gun, was tasked with devising a system to control the flooding. He spent more than nine years building a series of dikes and dams along the riverbanks, but all of this was ineffective, despite (or because of) the great number and size of these dikes and the use of a special self-expanding soil. As an adult, Yu continued his father's work and made a careful study of the river systems in an attempt to learn why his father's great efforts had failed. Collaborating with Hou Ji, a semi-mythical agricultural master about whom little is concretely known, Yu successfully devised a system of flood controls that were crucial in establishing the prosperity of the Chinese heartland. Instead of directly damming the rivers' flow, Yu made a system of irrigation canals which relieved floodwater into fields, as well as spending great effort dredging the riverbeds.[9] Yu is said to have eaten and slept with the common workers and spent most of his time personally assisting the work of dredging the silty beds of the rivers for the thirteen years the projects took to complete. The dredging and irrigation were successful, and allowed ancient Chinese culture to flourish along the Yellow River, Wei River, and other waterways of the Chinese heartland. The project earned Yu renown throughout Chinese history, and is referred to in Chinese history as "Great Yu Controls the Waters" . In particular, Mount Longmen along the Yellow River had a very narrow channel which blocked water from flowing freely east toward the ocean. Yu is said to have brought a large number of workers to open up this channel, which has been known ever since as "Yu's Gateway" Chicago Board Trading Building
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