Mesopotamia, the Ancient Kingdom was located on the flood plains of Euphrates and Tigris River. This area had many flood problems, but gradually the first civilization, ancient Sumer developed. The Sumerians had a large number of populations and out of that population many of them were farmers. The Sumerians had great inventions; they improved the technique of agriculture, and had a great sense of art. There way of constructing temples and houses were very professional type, and were exactly measured. They were the first one to start or create a writing system and they had great skills in mathematics.