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apr 26, 489 BC - Абак усовершенствовали.

Description:

Абак был усовершенствован и на свет появились счёты устройства, состоящего из набора костяшек, нанизанных на стержни.

Added to timeline:

Информатика в датах

9 Oct 2017

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1146

Date:

apr 26, 489 BC

Now

~ 2517 years ago

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