What script did the Sumerians use?

The Sumerians used a writing system called cuneiform, which was one of the earliest systems of writing in the world. Cuneiform was developed by the Sumerians in around 3500 BC and continued to be used for over 3,000 years, until it was replaced by the alphabetic script. Cuneiform was written by pressing a stylus into clay tablets, creating wedge-shaped marks which could be combined to form words and symbols. The Sumerians used cuneiform to write a range of texts, including administrative documents, religious texts, and literary works.