Russian Abacus: Everything You Need to Know
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There are many varieties of abacuses. Among them, one of the less common and lesser-known variants is the Russian abacus.
As a simple, reliable, and accessible tool, the Russian abacus was used in all shops and markets of the former Soviet Union and served as a teaching tool in most schools until the 1990s.
All this despite the fact that the first mechanical calculator was invented in 1874. Nevertheless, due to their cost and complexity, they did not replace the abacus. However, with the invention of the Odhner Arithmometer and its mass production from 1924 onwards, the use of the Russian abacus across the former Soviet Union was significantly reduced.
The Russian abacus truly began to fall into disuse from the 1970s with the widespread arrival of micro-calculators or handheld calculators.
Today, the Russian abacus is a mathematical tool that has unfortunately fallen somewhat into disuse, but one cannot deny its great mathematical value and its utility even now in education, although even in Russia it tends to be replaced by the Japanese soroban.
How the Russian Abacus Works
The Russian abacus school (счёты - Schoty) is characterized by arched rods, with 10 beads on each row (except often the 4th row, which typically does not have 10 but four beads). These four counting beads were used for fractional quarters of rubles.
Older models of Russian abacuses may have 4 rods for counting quarter kopeks, which were minted until 1916.
Nevertheless, models found today often differ from this description, notably in the arched construction.
The Russian abacus is often used vertically, with the rows aligned from top to bottom.
The arched construction of the rods helps to keep the beads on one side or the other.
In the case of Russian abacuses, resetting to zero is done when all beads are slid to the right. During operations, counting is performed by moving beads to the left. To facilitate visualization, 2 beads on each rod (the 5th and 6th beads) are usually a different color.
History of the Russian Abacus
In 1820, the French mathematician Jean Victor Poncelet brought the Russian abacus to France, where it was used by the Napoleonic army. Meanwhile, the general abacus had fallen into disuse in Western Europe in the 16th century, with the development and emergence of decimal notation and other algorithmic methods, typically used on paper, accounting books, or parchments intended for such purposes. However, mathematician Poncelet used it for educational purposes as demonstration material for his contemporary French compatriots of the time.
Many of these teachings remain in theory today in schools to facilitate the sometimes slightly abstract understanding of mathematics, when only electronic devices such as calculators and computers are implemented. Using an abacus bridges the abstract reality between calculators and the physical world, facilitating comprehension.
Buy a Russian Abacus
Russian abacuses can be difficult to find nowadays, even online. Nevertheless, as abacus specialists we have a few in our collection. You can view our collection here.
