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1 ore 10 min, 1 gen 1600 anni - The Abacus Ring
Descrizione:
The Abacus ring was a very early version of the calculator watch, dating back to the Qing Dynasty in China.
Aggiunto al nastro di tempo:
14 dic 2017
0
0
359
Innovations in Wearable Tech
Data:
1 ore 10 min, 1 gen 1600 anni
Adesso
~ 424 years ago
Immagini: