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.
History of Kaohsiung
The earliest evidence of human activity in the Kaohsiung area dates back to roughly 4700–5200 years ago. Most of the discovered remnants were located in the hills surrounding Kaohsiung Harbor, and include artifacts found at 壽山遺址, Longquan Temple ruins, 桃子園遺址、左營舊城遺址、左營遺址、後勁遺址、覆鼎金遺址、Fengbitou. The prehistoric Dapenkeng, 牛稠子, Dahu, and Niasong civilizations were known to inhabit the region. Studies of the prehistoric ruins at Longquan Temple have shown that that civilization occurred at roughly the same times as the beginnings of the aboriginal Makatau civilization, suggesting a possible origin for the latter. Unlike some other archeological sites in the area, the Longquan Temple ruins are relatively well preserved. Prehistoric artifacts discovered have suggested that the ancient Kaohsiung Harbor was originally a lagoon, with early civilizations functioning primarily as hunter-gatherer societies. Some agricultural tools have also been discovered, suggesting that some agricultural activity was also present.