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Based on diagrams on ancient clay tablets, the earliest known use of this essential invention was a potters wheel that was used at Ur in Mesopotamia (part of modern day Iraq} as early as 3500 BC. The first use of the wheel for transportation was probably on Mesopotamian chariots in 3200 BC.
Click here for audio of Episode 1254. Today, another look at the invention of the wheel. The University of Houston's College of Engineering presents this series about the machines that make our civilization run, and the people whose ingenuity created them. It's fairly common knowledge that the wheel was invented around 5500 years ago. But what was really invented at that time? V. Gordon Childe offers an interesting slant on the question. What we should be looking at, he says, is not the wheel itself, but rather the use of rotary motion.