Sumer was known as the first and earliest civilization of the sumerian people who lived in the southern half of ancient Mesopotamia. Sumerians built an excellent civilization with its own way of thoughtful language, writing, construction, art skills, and science (such as mathematics). Their religious practice was a complicated one that included hundreds of gods. According to our book, each Sumerian state was defended by its own God; and while people and gods worked to remain together, the humans have been created to serve their gods. Also, Sumerian people had the biggest impact on the world since they created the first writing in the world. “The Sumerians developed a more flexible system of writing that used graphic symbols to represent sounds,