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oct 6, 152 BC - Smoke Signals

Description:

Smoke signals are one of the earliest signs of long distance communication. In 150 BC Greek Historian Polybius developed a complex system of alphabetical smoke signals.

Added to timeline:

3 months ago
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Timeline of Communication, from 150BC to 2007

Date:

oct 6, 152 BC
Now
~ 2173 years ago
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