Communicating over long distances. The Telegraph and commercial Growth of the Telephone. The Emergence of Broadcasting. International Telecommunications Networks. Hand-Held Radio Transceivers. History and development of communications satellites.
Communicating over long distances has been a challenge throughout history. In ancient times, runners were used to carry important between messages rulers or other important people. Other forms of long-distance communication included smoke signals, chains of searchlights and flags to send a message from one tower to another, carrier pigeons, and horses. Modern telecommunications began with the discovery that electricity can be used to transmit a signal. For the first time, a signal could be sent faster than any other mode of transportation. The first practical telecommunications device to make use of this discovery was the telegraph. 1. The Telegraph Beginning in the mid-1800s, the telegraph delivered the first inter-city, transcontinental, and transoceanic messages in the world. The telegraph revolutionized the way people communicated by providing messages faster than any other means provided at the time. American art professor Samuel F.B. Morse pursued an interest in electromagnetism to create a practical el
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