The present day country being described is Iraq. It is often referred to as "the cradle of civilization" due to the ancient Sumerian civilization that existed there between 3500 and 3000 B.C. The Sumerians were known for their mathematical system based on the number 60, which led to the invention of the 60-minute hour, as well as the plow and the wheel. Today, Iraq is known for its oil, which is its most valuable natural resource.