What are sumerian citites?

Sumerian cities were some of the earliest urban centers in human history, emerging around 4500 BCE in ancient Mesopotamia, primarily in present-day Iraq. Notable cities included Ur, Uruk, and Eridu, characterized by advanced architecture, ziggurats, and complex social structures. These cities served as centers of trade, religion, and governance, showcasing innovations in writing, irrigation, and law. The Sumerians are often credited with developing one of the first written scripts, cuneiform, which facilitated record-keeping and administration.