WORLD CIVILIZATION

Detailed explanation-1: -Uruk at Its Height. By 5, 000 years ago Uruk held 40, 000–50, 000 people, and after another few hundred years it reached its peak of 50, 000–80, 000 inhabitants.

Detailed explanation-2: -Uruk played a leading role in the early urbanization of Sumer in the mid-4th millennium BC. By the final phase of the Uruk period around 3100 BC, the city may have had 40, 000 residents, with 80, 000-90, 000 people living in its environs, making it the largest urban area in the world at the time.

Detailed explanation-3: -Uruk was an ancient Sumerian (and later Babylonian) city located on the Euphrates river. At its height (ca. 2900 BC), Uruk’s population may have topped 50, 000 people and its walls enclosed an area of more than six square kilometers, making it the largest city in the world at that point in time.

Detailed explanation-4: -At its peak around 2800 BC, the city had a population between 40, 000 and 80, 000 people living between its six miles of defensive walls, making it a contender for the largest city in the world.