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 the "rigid digit" salute. It was used in a more jocular manner, to suggest an airman had committed an error or infraction; the term was a reference to British slang terms for inattentiveness (i.e. "pull your finger out (of your bum)"). The "order of the rigid digit" continued after the war as a series of awards presented by the veteran's association of the 91st, marked by wooden statuettes of a hand giving the single finger gesture. In 2005 during the war in Iraq, Gunnery Sergeant Michael Burghardt gained prominence when the Omaha World-Herald published a photo of Burghardt making