CSET Early Ancient Civilizations By destinye09 Period: 3500 BCE to 2000 BCE Sumer One of the first civilizations on Earth, Earliest writing system(cuneiform), complex systems of irrigation, invented the wheel Period: 2000 BCE to 1500 BCE Babylon Capitol of Babylonia- Babylonian ruler Hammurabi built an empire Period: 1800 BCE to 1500 BCE Hammurabi Babylonia