Global silver trade from the 16th to 18th centuries American mining for the early part of the 16th Century. Mining in the Americas became formally industrialized when the process of mercury amalgamation became popularized. Mercury amalgamation was invented by a Spaniard in central Mexico in the 1550s. Historians dispute what individual was the first to invent the process, however most agree that it was a Spaniard. Mercury was the one of the highest costs of production for the Americas, since much of it had to be shipped. The ratio of Mercury to silver produced was about two to one. Furthermore, German miners introduced the stamp mill and lead smelting
Aztec creator gods one will come to a cataclysmic end. Tezcatlipoca was generally represented with a stripe of black paint across his face and an obsidian mirror in place of one of his feet. The post-Classic (after ad 900) Maya-Quiche people of Guatemala revered him as a lightning god under the name Hurakan ("One Foot"). Other representations show Tezcatlipoca with his mirror on his chest. In it he saw everything; invisible and omnipresent, he knew all the deeds and thoughts of humans. By Aztec times (14th–16th century ad), Tezcatlipoca's manifold attributes and functions had brought him to the summit of the divine hierarchy,