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It didn’t take lengthy to discover that wheeled wagons could be used to hold heavy loads. The historic Sumerians used the potter’s wheel and should have invented it. A stone pottery wheel found in the city-state of Ur dates to around 3429 BCE, and even older fragments of wheel-thrown pottery have been present in the identical area. Fast potters’ wheels enabled early mass production of pottery, but it was the usage of the wheel as a transformer of energy that revolutionized the application of nonhuman energy sources. The first two-wheeled carts were derived from travois and had been first utilized in Mesopotamia and Iran in around 3000 BCE. The use of instruments by early people was partly a means of discovery and of evolution.
- For the strategies of building technology, see bridge; building development; canals and inland waterways; dam; harbours and sea