History of bike
First known bikes are invented in 19th century. However there are some unverified claims about “bicycle-like machines” from 15th century. (See details in wikipedia).The first known bicycle was invented by German Baron Kar von Drais. It was called Draisine and patented in 1818.
The first “pedal-operated bicycle” was invented by a French metalworker in 1863.
Ball bearings are started being used in 1877.
“In 1885, British inventor John Kemp Starley designed the first ‘safety bicycle’ with a steerable front wheel, two equally-sized wheels, and a chain drive to the rear wheel.”
Inflatable tubes are invented in 1888.
Back-pedal brakes are invented in 1889.
“Paul de Vivie invents a two speed rear derailleur gear” in 1905.
Disk brakes are invented in 1994.
There are lots of different designs in bicycle history. However the main concept remained the same: two wheels, man-power, pedals, and a power transmission system.
In the following video bike’s history is summarized: