When the axle invented?

The axle helped in many ways and it was one of the most important inventions. The axle came along with the wheel.The wheel and axle were both one if the most important inventions. The wheel and axle help to transport fod from place to place. They were usually pulled my horses and/or oxen. The axle made it easier to turn corners and the wheel made it easier to transport items. The wheel and axle were invented my the Egyptians at about 3,500 B.C.

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