History In ancient times, in the Greek world, we measured the radius of the Earth, the size Moon and its distance from Earth.
Once man learned to measure, quantitatively, could tell the succession of days and nights, the passing of the seasons, etc. and saw that every 365 days the sun rose in the same place.
Thanks to all this, today we know the mechanism of the tides, the ratio of the phases of the moon, the origin of the seasons, the foundation of the law of Gravitation, and we have developed the technology of artificial satellites and scientific observation craft.
There have been many systems for measuring length, weight and capacity as distinct peoples, usually based on anthropological dimensions: inch, foot, league, bushel, bushel, arroba, ... which varied considerably from place to place.
Each country and even each region had its own system of measurement, for example, was not the same as the yard stick to English English or French fathom. According
advancing relations between peoples was becoming necessary to establish a universal measuring system. From then until now this system has been redefined in terms of technological development and, today, is called the International System.
My birth was a milestone in relations between peoples, as was the introduction of the calendar (46 BC), the Romanesque to the birth of the concept of Europe, the computer and world of computing and communication backbone of modern society, or the Euro for European economic system.
In 1790, initiated by the French government as a result of the rationalist view of the seventeenth and eighteenth centuries, established a universal unit of length, meter, together with other units of area, volume and weight associated with it, built the first universal system to measure magnitudes in base 10 (the same that we use to write the numbers): the metric system. The most important thing is that it provides a number of decimal multiples in decimal for each unit of magnitude. Previous
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