Obsolete Russian units of measurement Peter the Great replace it with the Hindu-Arabic numeral system. 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: As in many ancient systems of measurement the Russian distinguishes between dry and
The finger Greek word "dactylos", both "finger" and the rhythmic measure composed of a long syllable and two short, like the joints of a finger ( which also appears as a visual pun on the penis and testicles in a medieval Latin text). Socrates called one who made the gesture "boorish and stupid". The gesture recurs as a form of mockery in "Peace", alongside farting in someone's face; the usage is later explained in the "Suda" and included in the "Adagia" of Erasmus. The verb "to play the Siphnian" appears in a fragment of Aristophanes and has a similar meaning; the usage