'man is by nature a social animal ' said the greek philosopher aristotle. this attribute made him constantly explor different and more effective way to communicate with fellow humman. thus what may have started as a sign language , gradually transfrom to words and sentences by which one could communicate one's ideas and thoughts his endeavour to reach out to the vast multitude of people acros the goube lade him to make inventions like the telephone and the telegraph these till the twentientieth centure where powerfull and effective means of communicative by which he could reach out to people all over the world . they were however too slow and cumbersome to meet his insatiable desire.
