Abacus - Vertical

Abacus - Vertical

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Product Code: PYABV010
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Product Description

The abacus, also called a counting frame, is a calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu Arabic numeral system. The exact origin of the abacus is still unknown. Today, abacuses are often constructed as a bamboo frame withbeads sliding on wires, but originally they were beans or stones moved in grooves in sand or on tablets of wood, stone, or metal.

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