Which civilization was know for using the the writing cuneiform

The civilization known for using Cuneiform was the Sumerians. It was used during the time periods of 3500 BCE to 3000 BCE. Cuneiform is also the earliest form of writing that ever existed. It was usually carved into clay tablets and was used mainly for government-related purposes.

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.