A bicycle, bike or pushbike is a vehicle with two wheels, one behind the other. A person who rides a bicycle is called a cyclist or a bicyclist.
Bicycles were introduced on 19th century, and they're the principal mains of transportation in many regions. They are also a popular form of entertainment, and had been adapted to become a children's toy, adult fitness or bicycle racing.
The first bicycle was introduced by Drais, in Paris in 1818. In the early 186os, the bicycle was adapted in a new way by Pierre Lallement. They finally changed again the design by reducing the front wheel diameter and sending the seat back.
Nowadays, the bike is a great way to do exercise and almost everyone has got one and knows how to ride it.
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