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jan 1, 105 BC - Smoke Signals

Description:

The smoke signal is one of the earliest forms of long distance communication; generally used to transmit news, signal danger or gather people to a common area.

Added to timeline:

The rapid rate of technology change

ByGeorgiana Haywood
13 Nov 2018
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Date:

jan 1, 105 BC
Now
~ 2132 years ago
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