abacus

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abacus: Facts & Related Content

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Facts

Also Known As	abax • abacuses • abakos • abaci

Topics

soroban Roman abacus machine calculation Analytical Engine slide rule quipu calculator nomogram particle accelerator clock lubrication robot simple machine

Key People

Sylvester II, detail from the ivory vessel used at the consecration of Otto III, 996; in the Domschatzkammer des Aachener Domes, Aachen, Ger.

Sylvester II

pope