Leonardo Da Vinci was the first to make a schematic drawing of a bicycle. It was found in a 1540 sketchbook but there is no record he ever attempted to build one.
A French nobleman, Comte de Sivrac, is said to have built the célérifere (later called velocipede) in 1791. It had no forks and so could not be steered in the normal way but still can be considered like the first modern bike.
Nowadays around 130m bikes are produced in the world. Over the 60% of them are made in China.
Here is a picture of Fiore trying to figure out how to get to that one.