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 Curse of the Aztec Mummy The Curse of the Aztec Mummy The Curse of the Aztec Mummy (Spanish: La Maldición de la Momia Azteca) is a 1957 Mexican horror film directed by Rafael Portillo. It is the second film in the Aztec Mummy series which began with "The Aztec Mummy" (Spanish title:La Momia Azteca) which was released earlier that year. The plot is continued from the first film in the series, "The Aztec Mummy". The evil Dr. Krupp (Luis Aceves Castañeda) escapes from the police with the aid of his gang, and once again tries to get possession of the Aztec princess Xochitl's gold breastplate