The invention of the wheel forms the very foundation of human progress. Mood knows who first used or invented the wheel or where. Today, the wheel, rotating on an axle, forms main principle of every machine, gadget and engine. The wheel is universal. There are wheels and wheels, and wheels within wheels. We cannot think of life without wheels. Whether it is a watch, a locomotive, a generator, a car, a train, a tram or a simple bullock cart, there are again wheels and wheels. Without a wheel all our Industrial and other activities would come to a grinding halt. The moon and the sun are also round and circular like a wheel in shape. They look like two divine wheels fitted into the celestial car of the universe. The early man must have noticed the circular shape of these luminous heavenly bodies, and inspired to invent the wheel to carry heavy loads from one place to another. The>invention of the wheel reduced the friction to the minimum possible degree, and so movement became easy.