What country originated the meter in the international unit?

The meter in international units originated in France. The definition of the meter first originated in France. Originally, the length of one meter was defined as one ten millionth of the distance from the equator to the North Pole on the meridian through Paris. With the deepening of understanding, the definition of the meter has been modified. 1983 International Conference on Weights and Measures to redefine the definition of the meter, light in a vacuum traveling 1/299792458 seconds for a standard meter. Or the length of light in 1 second divided by 299792458 is 1 meter.

Introduction of the meter protomer

1792-1799, under the leadership of the French astronomers Jie Liang Boole and Mishin, France Dunkirk to Barcelona, Spain, was measured. 1799 according to the results of the measurements to make a 3.5 mm × 25 mm short cross-section of platinum protomer, platinum rods, as a rod. The distance between the two ends is set at 1 meter, and handed over to the French Archives for safekeeping, so it is also known as the archive meter. This is the earliest definition of the meter, and this meter proto has been preserved in the Paris Archives.