What is one achievement made by the Sumerians and explain why it is significant.?

One significant achievement of the Sumerians was the development of cuneiform writing around 3200 BCE. This early form of writing, which involved pressing a stylus into clay tablets, allowed for the recording of transactions, laws, and stories, facilitating communication and administration in their complex society. The invention of writing is significant because it laid the foundation for the documentation of history, culture, and the advancement of knowledge, influencing subsequent civilizations.