Global silver trade from the 16th to 18th centuries which China desired, so they traded silver to make up for their trade deficit. The two most important mining colonies of the Spanish Empire were Peru and Mexico, who were estimated to have provided one-hundred thousand tons of silver from the mid 16th Century to the end of the colonial period. The richest, and most productive mine in the Americas was that of Potosí in what is modern day Bolivia. The richest camp in Mexico was in the city of Zacatecas, however the production of this mine was far less than that of Potosi. More simplistic native mining techniques dominated
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