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  2. Rod (unit) - Wikipedia

    en.wikipedia.org/wiki/Rod_(unit)

    The rod is useful as a unit of length because integer multiples of it can form one acre of square measure (area). The 'perfect acre' [2] is a rectangular area of 43,560 square feet, bounded by sides 660 feet (a furlong) long and 66 feet (a chain) wide (220 yards by 22 yards) or, equivalently, 40 rods by 4 rods. An acre is therefore 160 square ...

  3. Measuring rod - Wikipedia

    en.wikipedia.org/wiki/Measuring_rod

    A rod is the same length as a perch or a pole. [24] In Old English, the term lug is also used. The length is equal to the standardized length of the ox goad used for teams of eight oxen by medieval English ploughmen. [25] The lengths of the perch (one rod unit) and chain (four rods) were standardized in 1607 by Edmund Gunter.

  4. Rood (unit) - Wikipedia

    en.wikipedia.org/wiki/Rood_(unit)

    A rectangle that is one furlong (i.e., 10 chains, or 40 rods) in length and one rod in width is one rood in area, as is any space comprising 40 perches (a perch being one square rod). The vergée was also a quarter of a Normandy acre, and was equal to 40 square perches (1 Normandy acre = 160 square perches).

  5. Furlong - Wikipedia

    en.wikipedia.org/wiki/Furlong

    Farm-derived units of measurement: The rod is a historical unit of length equal to 5 + 1 ⁄ 2 yards. It may have originated from the typical length of a mediaeval ox-goad. There are 4 rods in one chain. The furlong (meaning furrow length) was the distance a team of oxen could plough without resting. This was standardised to be exactly 40 rods ...

  6. Cubit - Wikipedia

    en.wikipedia.org/wiki/Cubit

    Egyptian cubit rod in the Liverpool World Museum Cubit rod of Maya, 52.3 cm long, 1336–1327 BC (Eighteenth Dynasty) The cubit is an ancient unit of length based on the distance from the elbow to the tip of the middle finger. [1] It was primarily associated with the Sumerians, Egyptians, and Israelites.

  7. Gunter's chain - Wikipedia

    en.wikipedia.org/wiki/Gunter's_chain

    The 66-foot (20.1 m) chain is divided into 100 links, usually marked off into groups of 10 by brass rings or tags which simplify intermediate measurement. Each link is thus 7.92 inches (201 mm) long. A quarter chain, or 25 links, measures 16 feet 6 inches (5.03 m) and thus measures a rod (or pole).

  8. Ancient Roman units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_units_of...

    The units of measurement of ancient Rome were generally ... the square of the standard 10-foot measuring rod actus simplex ... an ordinary year is 365 days long, ...

  9. English units - Wikipedia

    en.wikipedia.org/wiki/English_units

    Also called a perch or pole: a measure used for surveying land and in architecture. The rod is the same length today as in Anglo-Saxon times, although its composition in terms of feet were changed by the Composition of Yards and Perches from 15 feet to 16 + 1 ⁄ 2 feet or 5 + 1 ⁄ 2 yards. The pole is commonly used as a measurement for ...