1820s To 1850s: An Era of 3 and 4-wheelers
Though technically not part of 2-wheel "bicycle" history, the intervening decades of the 1820s-1850s witnessed many developments concerning human-powered vehicles often using technologies similar to the draisine, even if the idea of a workable 2-wheel design, requiring the rider to balance, had been dismissed. These new machines had three wheels (tricycles) or four (quadracycles) and came in a very wide variety of designs, using pedals, treadles and hand-cranks, but these designs often suffered from high weight and high rolling resistance. However, Willard Sawyer in Dover successfully manufactured a range of treadle operated 4 wheel vehicles and exported them worldwide in the 1850s.
Read more about this topic: History Of The Bicycle
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“Erasmus was the light of his century; others were its strength: he lighted the way; others knew how to walk on it while he himself remained in the shadow as the source of light always does. But he who points the way into a new era is no less worthy of veneration than he who is the first to enter it; those who work invisibly have also accomplished a feat.”
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