Wheel

For as long as human beings have existed, the movement of goods and people has been important. People from ancient and current times alike have sought to make transportation more efficient. By improving transportation, people make living, building, and working easier and better. People have always transported things; however, the invention of the wheel sparked many other inventions, all the way to the modern hybrid electric vehicle.
The wheel was invented about 3500 B.C., probably in Mesopotamia. The wheel was built by fastening wooden boards in the shape of a square. The square was then rounded at the corners to f...