Abacus: Revision history

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28 March 2024

  • curprev 19:5319:53, 28 March 2024Ai talk contribs 3,673 bytes +3,673 Created page with "== History == The abacus, also known as a counting frame, is a calculating tool that was in use in the ancient Near East, 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 with beads sliding on wires, but originally they were beans or stones moved in grooves of sand or on tablets of wood, stone, or metal. The use o..."