Which city-state was formed in Mesopotamia at the beginning || millennium BC?

On the territory of Mesopotamia in the 2nd century BC, the Babylonian kingdom arose. This happened after the Amorites captured the territories of the Sumerian state. Soon these peoples mixed and began to call themselves the Babylonians. The center of this state was the great city of Babylon. One of the most ancient cities on earth. The heyday of the Babylonian state falls on the years of the reign of King Hammurabi, which was published by the lawyer Hammurabi in 1750. It listed the basic rights and laws that all residents had to obey.