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29 nov 201 anni a. C. - Smoke signals
Descrizione:
Smoke signals were first used in Ancient China
to alert others of danger along the Great Wall.a
Aggiunto al nastro di tempo:
Communications Timeline
By
ZT
9 nov 2018
1
0
335
Data:
29 nov 201 anni a. C.
Adesso
~ 2227 years ago
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