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 codices Aztec codices Aztec codices ( ) are books written by pre-Columbian and colonial-era Nahuas in pictorial and/or alphabetic form. These codices provide some of the best primary sources for Aztec culture. The pre-Columbian codices mostly do not in fact use the codex form (that of a modern paperback) and are, or originally were, long folded sheets. These sheets were typically made from stretched deerskin or from the fibers of the agave plant. They also differ from European books in that they mostly consist of images and pictograms; they were not meant to symbolize spoken or written narratives. Particularly important colonial-era