Scholars consider cuneiform the first writing system, and humans used its wedge-shaped characters to inscribe ancient languages such as Sumerian on clay tablets beginning around 3400 BC.
Researchers investigating how the first writing arose identified the motifs on preliterate "cylinder seals" used in the trade of agricultural products and textiles.
Designs on stone cylinders dating back six thousand years correspond to some signs of the proto-cuneiform script that emerged in the city of Uruk, in southern Iraq, around 3350–3000 BCE. This ...