Velocipede

Velocipede (/vəˈlɒsəpiːd/; Latin for 'swift foot') is a human-powered land vehicle with one or more wheels. The most common type of velocipede today is the bicycle.

The term was probably first coined by Karl von Drais in French as vélocipède for the French translation of his advertising leaflet for his version of the Laufmaschine, also now called a 'dandy horse', which he had developed in 1817. It is ultimately derived from the Latin velox, veloc- 'swift' + pes, ped- 'foot'. The term 'velocipede' is today mainly used as a collective term for the different forerunners of the monowheel, the unicycle, the bicycle, the dicycle, the tricycle and the quadracycle developed between 1817 and 1880. It refers especially to the forerunner of the modern bicycle that was propelled, like a modern tricycle, by cranks, i.e. pedals, attached to the front axle before geared chain, belt and shaft drives powering the rear were invented.

Among the early velocipedes there were designs with one, two, three, four, and even five wheels. Some two-wheeled designs had pedals mounted on the front wheel, while three- and four-wheeled designs sometimes used treadles and levers to drive the rear wheels.

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