From approximately 3100 bce, when the earliest Sumerian records first appear, through approximately 2500 bce, Archaic Sumerian was in use.
Nearly all of the oldest Sumerian writings are texts with an administrative or economic focus. Sumerian script is the style of writing used by southern Mesopotamia's ancient Sumerian culture. It is the first type of writing in cuneiform. Around 3500–3000 BCE, the ancient Sumerians of Mesopotamia created the cuneiform writing system. Cuneiform's beginnings may be roughly traced to the end of the fourth millennium bce. At that time, the Chaldean region west of the Euphrates River's mouth and southern Mesopotamia were home to the Sumerians, a people of undetermined ethnic and linguistic affiliations.
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