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1 ч 10 мин, 1 янв 1600 г. - The Abacus Ring

Описание:

The Abacus ring was a very early version of the calculator watch, dating back to the Qing Dynasty in China.

Добавлено на ленту времени:

Innovations in Wearable Tech

ByNicholas Myers

14 дек 2017

0

0

503

Дата:

1 ч 10 мин, 1 янв 1600 г.

Сейчас

~ 426 г назад

Изображения:

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