Olympic Sports(ⅩⅥ):Cycling(Ⅱ)

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Bicycles were first developed in the mid-18th century and have long since been used as a form of trans-port. In 1839, Scottish blacksmith Kirkpatrick McMillan devised a pedal-and-crank mechanism to power the two-wheeled machine, which gave bicycle racing its first big boost. Until then, bicycles were pushed along by the feet. And in 1885, Bicycles were first developed in the mid-18th century and have long since been used as a form of trans-port. In 1839, Scottish blacksmith Kirkpatrick McMillan devised a pedal-and-crank mechanism to power the two-wheeled machine, which gave bicycle racing its first big boost. Until then, bicycles were pushed along by the feet. And in 1885,
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