The barleycorn is a small English unit of length equal to 1/3 of an inch (i.e., close to 0.8467 cm) still used as the basis of shoe sizes in English-speaking countries.
Video Barleycorn (unit)
History
Under the c. AD 1300 Composition of Yards and Perches, one of the statutes of uncertain date that was notionally in force until the 1824 Weights and Measures Act, "3 barly cornes dry and rounde" were to serve as the basis for the inch and thence the larger units of feet, yards, perches and thus of the acre, an important unit of area. The notion of three barleycorns composing an inch certainly predates this statute, however, appearing in the 10th-century Welsh Laws of Hywel Dda.
In practice, various weights and measures acts of the English kings were standardized with reference to some particular yard-length iron, brass, or bronze bar held by the king or the Royal Exchequer. The formal barleycorn was 1/108 of its length.
The English statute notwithstanding, the barleycorn was also frequently taken as a measure of length equal to 1/4.
As modern studies show, the actual length of a kernel of barley varies from as short as 4-7 mm (0.16-0.28 in) to as long as 12-15 mm (0.47-0.59 in) depending on the cultivar. Older sources claimed the average length of a grain of barley being 0.345 in (8.8 mm).
Maps Barleycorn (unit)
See also
- line, 1/4 of a barleycorn or 1/12 of an inch
- List of unusual units of measurement
- poppyseed, 1/4 or 1/5 of a barleycorn
References
Source of the article : Wikipedia
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