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A native system of weights and measures was used in Imperial Russia and after the Russian Revolution, but it was abandoned in 1924 when the Soviet Union adopted the metric system. The Tatar system is very similar to the Russian one, but some names are different. The system existed since ancient Rus', but under Peter the Great, the Russian units were redefined relative to the English system.〔Шостьин Н. А. Очерки истории русской метрологии XI — начала XX века. М.: 1975.〕 Until Peter the Great the system also used Cyrillic numerals, and only in the 18th century did Peter the Great replace it with the Hindu-Arabic numeral system.〔 ==Length== The basic unit is the Russian cubit, called the ''arshin'', which has been in use since the 16th century. It was standardized by Peter the Great in the 18th century to measure exactly twenty-eight English inches (). Thus, 80 vershoks = 20 piads = 5 arshins = 140 English inches (). A ''piad'' (, “palm”, “five”) or ''chetvert'' (, “quarter”) is a hand span, the distance between ends of the spread thumb and index finger. Alternative units: * Swung sazhen (, distance between tips of arms stretched sidewards) = 1.76 m * Skewed, or oblique sazhen (, distance between tip of a raised arm and a tip of an opposite leg slightly put away) = 2.48 m * Double versta or border versta, (), used to measure land plots and distances between settlements = 2 verstas (comes from an older standard for versta) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Obsolete Russian units of measurement」の詳細全文を読む スポンサード リンク
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