What is an early sumerian city?

An early Sumerian city is Ur, one of the most prominent urban centers in ancient Mesopotamia, located in present-day Iraq. Ur was known for its advanced architecture, including the famous Ziggurat of Ur, and its role as a major center of trade and culture around 3000 BCE. It was also a key site for the development of cuneiform writing and early governance systems. The city played a significant role in the rise of civilization in the Sumerian region.