Copper was the first metal that humans knew. They checked, after a lightning strike, a stone or ore, it had been melted, causing a kind of " nugget or consolidated ". Amazed by the miracle they used it at first as beading. The woman who had given it, as proof of love and after being abandoned by one of their own, tribe; full of rage and pain, he started hitting the beading, with a stone and much anger. This was the first "Mixer copper " history. After checking the deformation of the metal because of its ductility, the Chief of the clan was mulling over the head for several days. He came to the conclusion, that the metal to put it in the fire, ( as did the lightning ) It could be merged and that beating him with rabies, could be given form. Thus began: mechanical engineering, metallurgy, jewelry, entrepreneurship and trade. Since he became the first " currency, after the salt. all these industries and workers, making more sacrifice were beaters, of copper; then spent the day banging for laminating and give form to the metal. Pedro Sanchez.