Part 1 of Essay
With the development of civilization and written languages came the need for more frequent and reliable methods of communication allowing messages to reach longer distances. This was essential to the control of trade and other affairs between nations and empires. Early man used cave walls as the media on which messages c ....

Part 2 of Essay
.... could correspond with people in other countries. A visual semaphore system was also implemented in both Europe and the United States, providing a way of ‘echoing' messages nationally via large towers placed in strategic positions; however this proved slow as each method had to be verified to ensure message accuracy. Following the discovery and partial understanding of electricity in the 18th Century scientists looked towards a way of relaying messages electronically. This attracted great interest because ....