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A verst ((ロシア語:верста), versta) is an obsolete Russian unit of length. It is defined as being 500 sazhen long, which makes a verst equal to . In the English language, ''verst'' is singular with the normal plural ''versts''. In Russian, the nominative singular is ''versta'', but the form usually used with numbers is genitive plural ''verst'' — 10 verst, 25 verst, etc. — whence the English form. A mezhevaya versta ((ロシア語:межевая верста), lit. border verst) is twice as long as a verst. "The verst of the 17th century was 700 sazhens or 1.49 km as against the 500 sazhens or 1.067 km it became at the time of Peter the Great".〔Raymond H Fisher, 'The Voyage of Semen Dezhnev', Hakluyt Society,1981, page 176, citing Dal's Tolkovyy Slovar〕 The Russian Wiki mentions several other old values. In Finland, ''virsta'' was originally 1.069 km according to the Swedish standard, but the Russian verst (1.0668 km) replaced it after annexation to the Russian Empire in 1809. ''Virsta'' was originally 600 ''syli''s (fathoms, 1.781 m), but then changed to 500 ''syli'', since the Russian ''syli'' was longer, 2.134 m. A derived unit was ''peninkulma'' = 10 ''virsta'' (see Finnish units of measurement). Metrification replaced ''virsta'' with the kilometre in the 1880s.〔Konu, Mia. ''Palvelukseen halutaan yksi raitis imettäjä - notiiseja ja reklaameja 1800-luvun sanomalehdistä. Nemo, Helsinki 2009.〕 ==References== 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「Verst」の詳細全文を読む スポンサード リンク
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