What is "eridu"

Eridu ( Cuneiform: NUN.KI ; Sumerian: eridu; Akkadian: irîtu modern Arabic: Tell Abu Shahrain) is an archaeological site in southern Mesopotamia (modern Dhi Qar Governorate, Iraq). Eridu was long considered the earliest city in southern Mesopotamia and is still today argued to be the oldest city in the world. Located 12 km southwest of Ur, Eridu was the southernmost of a conglomeration of Sumerian cities that grew around temples, almost in sight of one another. These buildings were made of mud brick and built on top of one another. With the temples growing upward and the village growing outward, a larger city was built. In Sumerian mythology, Eridu was originally the home of Enki, later known by the Akkadians as Ea, who was considered to have founded the city. His temple was called E-Abzu, as Enki was believed to live in Abzu, an aquifer from which all life was believed to stem.