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3 дек 500 г. до нашей эры - Abacus

Описание:

counting frame & calculating tool in Europe
Had a frame that holds rods with sliding beads
First made around 500 BC

Добавлено на ленту времени:

Timeline part 1

8 ноя 2017

0

0

382

Дата:

3 дек 500 г. до нашей эры

Сейчас

~ 2527 г назад

Изображения:

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