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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
July 31, 2021
2139712
178964
2

jan 1, 150 BC - Smoke Signals

Description:

Used for long distance communication.

Added to timeline:

13 Nov 2018
0
0
69
Technology TImeline

Date:

jan 1, 150 BC
Now
~ 2173 years ago
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