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 as obscene. The index finger and ring finger besides the middle finger in more contemporary periods has been likened to represent the testes. The middle finger gesture was used in ancient times as a symbol of sexual intercourse, in a manner meant to degrade, intimidate and threaten the individual receiving the gesture. It also represented the phallus, with the fingers next to the middle finger representing testicles; from its close association, the gesture may have assumed apotropaic potency. In the 1st-century Mediterranean world, extending the "finger" was one of many methods used to divert the ever-present threat of the evil