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.)
Norwegian units of measurement Norwegian units of measurement As in the case of the Danes the Norwegians' earliest standards of measure can be derived from their ship burials. The was built ca. 700 AD and differs from the Danish boats less than it does from the Oseberg, Gokstad and Tune ships which all date from ca. 800 AD. Thwarts are typically spaced about 3 feet apart. In 1541, an "alen" in Denmark and Norway was defined by law to be the Sjælland "alen". Subsequently, the "alen" was defined by law as 2 Rhine feet from 1683. From 1824, the basic unit was defined as