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How to Ride a Bicycle
The first bicycle, or proto bicycle, was a balance bike for adults. A decades after that first one, in round a middleay of the 18 hundred, somebody finally added pedals to the like. By the end of the 18 eighties, you've got a recognizable design for the modern bicycle. It as like 70 years of design evolution to get there. But it depended on a lot of materials and manufacturing innovations that happen through the nineteenth century.