In 2,100 B.C., Ur was one of the most powerful and wealthy cities in Sumer. A king named Ur-Nammu ruled it. He was the king of Sumer and Akkad. Akkad is an ancient name for an area of Mesopotamia. He built a ziggurat called the temple-tower. It contained businesses, temples, and it was dedicated to the "moon god" who, of course, wasn't real. The Sumerians planted trees and flowers inside the shrine at the top. They built an artificial forest for their imaginary gods. While everybody in Ur worshiped these false gods, their religion didn't change their behavior. They were still very sinful.
A British archaeologist named Sir Leonard Woolley discovered a tomb of a wealthy Sumerian, Lady Shub-ad. This gave insight to the Sumerian way of life, because many artifacts had been buried in the tomb also. Where the Sumerians intelligent? You decide: They invented the plow, a kind of wheel, envelopes, irrigation systems, a number system we use today, a calendar system, and libraries. They also invented a way to barter using barley, sewer systems,how to put fireplaces and fountains indoors, and much more. Around 2,000 B.C, Sumer was invaded by the Amorites. The rule of the Sumerians had come to an end.