History of the world
Whether in prehistoric or historic times, people always needed to be near reliable sources of potable water. Settlements developed on river banks as early as 3000 BCE in Mesopotamia, on the banks of Egypt's Nile River, in the Indus River valley, and along China's rivers. As farming developed, grain agriculture became more sophisticated and prompted a division of labour to store food between growing seasons. Labour divisions led to the rise of a leisured upper class and the development of cities, which provided the foundation for civilization. The growing complexity of human societies necessitated systems of accounting and writing.
Ancient history
Chinese Civilization that emerged within the Yellow River Valley is one of five original civilizations in the world. Prior to the formation of civilization neolithic cultures such as the Longshan and Yangshao dating to 5,000 BC lived in wall cities and likely had social organizations of complex chiefdoms. The practice of rice cultivation was vital to settled life in China.