Geographical mile longitude at the equator is thus exactly 60 geographical miles. It was closely related to the nautical mile, which was originally determined as 1 minute of arc along a great circle of the Earth, but is nowadays defined as exactly 1852 metres. The US National Institute of Standards and Technology (NIST) notes that: "The international nautical mile of 1 852 meters (6 076.115 49...feet) was adopted effective July 1, 1954, for use in the United States. The value formerly used in the United States was 6 080.20 feet = 1 nautical (geographical or sea) mile." (6080.2 feet is 1853.24496 meters.)
Yoke (unit of measurement) Yoke (unit of measurement) A yoke was a unit of land measurement used in Kent in England at the time of the Domesday Book for tax purposes. It was equal to a quarter of a sulung. A sulung was the amount of land which could be ploughed by 4 ox-pairs (or approximately 2 hides), therefore a yoke was a pair of oxen, representing the amount of land that could be cultivated by an ox pair. A yoke also described the device used to harness two oxen together (see photo). In early Saxon times nearly all the Weald of Kent, the