Answer:
URUK
Step-by-step explanation:
Major Sumerian city-states included Eridu, Ur, Nippur, Lagash and Kish, but one of the oldest and most sprawling was Uruk, a thriving trading hub that boasted six miles of defensive walls and a population of between 40,000 and 80,000. At its peak around 2800 B.C., it was most likely the largest city in the world.