When was the invention of the wheel in the Mesopotamian region?
Answer
3500 BCE
The invention of the wheel, which occurred in the Mesopotamian region, is dated to approximately 3500 BCE. This represented a fundamental shift in land transport, as this simple concept significantly lowered the amount of energy required to transport heavy objects over land surfaces. This innovation was foundational, eventually leading to the development of vehicles such as ox carts and chariots, predating later mechanical power sources by millennia.

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