Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
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.