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.)
Obsolete Austrian units of measurement Obsolete Austrian units of measurement Austrian units of measurement were used in Austria until the adoption of the metric system. In 1756, the ruling Arch duchess of Austria, Maria Theresa, ordered that the Viennese "klafter" as well as its multiples and fractions, should be the state-defined measure of length in the Archduchy of Austria and the Kingdom of Hungary. The Viennese cubit, that is 1 of the Roman cubit (cubit's or elbow), was also used as a measure of length. The law should also have applied to the Lands of the Bohemian Crown, of which Maria Theresa was queen. However,