The Hydraulic Telegraph Of Aeneas – Long-Distance Communication Of Antiquity 

Advances in technology have drastically changed the way we live today compared to those of our ancient past. One type of technology that many of us may take for granted is the ability to communicate with others over long distances, or to large groups of people. A look back at ancient civilizations can give us insight today into the very first methods of long-distance communications. In 350 BC, a Greek named Aeneas invented the hydraulic telegraph, which was a means of communicating important, fairly detailed information, quickly over long distances.

Aeneas was a Greek writer who focused on military history, strategy, communications. He was one of the first authors to provide a guide on military communications, which were important for ensuring that any society had the ability to anticipate possible invasions, and to communicate strategy and tactics back and forth between groups. Aeneas was frustrated by the limitations placed on communications via torches and beacons. Torches allowed some messages to be conveyed, for example, they could indicate danger, or communicate that an objective had been accomplished, but they could not send messages with any level of detail or description. Essentially, they could communicate that something had occurred, but there was no way to communicate what had occurred.

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