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The spoked wheel, a significant technological advancement, first appeared around 2000 BC in Asia Minor, primarily used on chariots. A spoked wheel consists of a circular frame with radiating bars, known as spokes, that connect the hub to the rim. This design was a development from earlier solid wooden wheels, which were made from planks clamped together. The introduction of spoked wheels allowed for lighter and more efficient vehicles. Further innovations included iron hubs and tires, which enhanced durability and performance. The concept of the wheel itself, in various forms like pottery wheels and waterwheels, dates back much earlier, with evidence of wheeled transportation in Sumer around 3500 BC.12

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