Until a few years ago, it was assumed that motor development depended upon genetic make-up and that an individual’s central nervous system was the driver of his development, both physical and motor. Motor conduct was, therefore, considered to be a direct consequence of the development of the nervous system. One’s body was regarded as a mere executor, and it was thought that environment had no impact. The prevailing theory was that motor development proceeded through pre-defined stages, in relation to age and aside from any surroundings. This concept began to change when scientists started to examine social interaction involving children, and to measure its effects on their development, both psycho-social and motor. L.Vygotskij was a pioneer in this new approach to motor development. A law graduate with a passion for psychology, this revolutionary scientist remained unknown for almost forty years.