Brass Chortkeh – Traditional Persian Abacus for Counting & Calculation

The abacus is one of the oldest known calculating tools, with origins tracing back over 2,500 years to ancient Mesopotamia and later adopted and refined by civilizations such as the Greeks, Romans, Chinese, and Japanese. Historically, it served as a practical aid for merchants, traders, and scholars to perform arithmetic operations long before the advent of modern numerals or written computation. In particular, the Chinese “suanpan” and the Japanese “soroban” reflect culturally distinct yet functionally similar evolutions of the tool. Functionally, an abacus consists of a rectangular frame holding rods with sliding beads, where each rod represents a different digit or place value. Users move beads toward or away from a central divider to signify addition, subtraction, multiplication, or division. Beyond its use in arithmetic, the abacus also promotes mental calculation skills, spatial reasoning, and cognitive development, making it an effective educational tool even in the digital age. Its cultural heritage and simplicity continue to make it a symbol of classical mathematical knowledge.