Meters-
A
metre (m), also spelled meter, in measurement, fundamental unit of length in the metric system and in the International Systems of Units (SI). It is equal to approximately 39.37 inches in the British Imperial and United States Customary systems. The metre was historically defined by the French Academy of Sciences in 1791 as 1/10,000,000 of
the quadrant of the Earth’s circumference running from the North Pole through Paris to the equator. The International Bureau of Weights and Measures in
1889 established the international prototype metre as the distance between
two lines on a standard bar of 90...
- Encyclopædia Britannica
