Mesopotamia is a historical region between the Tigris and Euphrates rivers that is centered around what is now Iraq. It was the first place in the world where class society existed.[1]
History
Prehistory
In prehistoric times, Mesopotamia was made of swamps and deserts. Neolithic farmers drained the swamps and irrigated the sand to create extremely fertile land.[1]
Sumer
During the fourth and third millennia BCE, Sumer created massive agricultural surpluses and bronze tools that turned villages into the first cities. They invented writing to keep track of economic records, especially taxes and dues. Temples and estates formally belonged to the gods, and priests managed the land while wage workers or tenant farmers worked it. Priests developed into city governors, and later, kings who frequently went to war with each other.[1]