4. what was the sumerians greatest achievement? what was it called?

4. what was the sumerians greatest achievement? what was it called?
Answer
Brief Explanations:
The Sumerians' greatest achievement was the development of a writing system. This writing system was crucial for record - keeping, communication, and the preservation of knowledge. It allowed for the documentation of laws, business transactions, literature, and religious texts.
Answer:
The Sumerians' greatest achievement was the development of a writing system. It was called cuneiform.