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
The Aztec Mummy The Aztec Mummy La Momia Azteca (lit. trans. "The Aztec Mummy"), also known simply as "La Momia", is a 1957 Mexican horror film produced by Guillermo Calderon from his own story idea, scripted by Alfredo Salazar, and directed by Rafael Portillo. It was the first in a trilogy of Mexican mummy films all featuring Popoca, the Aztec Mummy. The other two films were "The Curse of the Aztec Mummy" and "The Robot vs. The Aztec Mummy". The three films were all shot in 1957, one after another without a break in the production schedule. The film was later re-edited and