Sagot :
The history of the metre starts with the scientific revolution that began with Nicolaus Copernicus's work in 1543. Increasingly accurate measurements were required, and scientists looked for measures that were universal and could be based on natural phenomena rather than royal decree or physical prototypes.
Answer:The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889).
Unit system: SI base unit
Unit of: Length
SI units: 1000 mm; 0.001 km
Imperial/US units: ≈ 1.0936 yd; ≈ 3.2808 ft; ≈ .
Explanation: