We know that the first form of writing was in the form of pictures of animals, people and objects. These were called pictograms, and they first 
appeared about 3000 BC. It was easy to read this type of writing since it was easy to recognize the symbols. But it was also a little confusing, because these pictures could not always express ideas or actions fully. So, ideograms or symbols to express thoughts and actions were developed. For example, a picture of a pair of legs walking can mean ‘go’.In time, these symbols changed their shape into signs that did not look much like the real thing… but they kept their meaning. In ancient Indian civilization for example, there were over 400 signs that represented things, and names of people and places
