When was the bicycle wheel invented?

What we know as the modern bicycle was not invented until the 1860's, but there were earlier types of inventions that resembled it.

The célérifere, later called velocipede, is said to have been built by the French nobleman Comte de Sivrac in 1791. It had no forks and so could not not be steered in the normal way. Instead a shift in body weight to one side or the other allowed a turn. It is now believed that it had 4 wheels, not 2.

The first transport that resembled the modern bicycle was the "running machine" (Laufmaschine) invented in 1817 and patented in 1818 by Karl von Drais, a German Baron. The English name was the draisine, and it consisted of a seat between two wooden wheels, which one could push along, then coast. A version called the hobby horse was sold during 1818. Another early bicycle pioneer was Denis Johnson, who in 1819 improved the "coasting machine" by adding iron fork mounts to the wheels and improved steering.

The invention of the first pedal-driven bicycle is debated. Three recognized French inventions between 1860 and 1866 were by Ernest Michaux, Pierre Lallement (front-pedal), and Alexandre Lefebvre (rear-pedal). An earlier Scottish pedal version in 1839 by Kirkpatrick McMillan is of questionable authenticity.

Later bicycles (penny farthings) had pedals attached to a much larger front wheel, and were difficult and dangerous to ride. Chain sprocket drives were developed for the modern "safety bicycles" which had wheels of the same size. The first version of what is essentially today's bicycle (the Rover) was by John Kemp Starley in 1885, and was never patented.

There's a recurring claim that Da Vinci invented the bicycle - or at lest had made drawings of something bicycle-looking. But closer examination has shown these sketches to be forgeries added at a much later date.
in the year 1896
In the early 1800's. See the related link below for more information.
In the early 1800's. See the related link below for more information.
In 1817 what did first bicycle look like