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
Zamboangueño people Zamboangueño people The Zamboangueño people or Zamboangueño nation (Chavacano/Spanish: "Pueblo/Nación Zamboangueño") are a creole ethnolinguistic nation of the Philippines originating in Zamboanga City. Spanish censuses record that as much as one third of the inhabitants of the city of Zamboanga possess varying degrees of Iberian and Hispanic-American admixture. In addition to this, select cities such as Iloilo, Bacolod, Dumaguete, Cebu and Cavite, which were home to military fortifications and/or commercial ports during the Spanish era also hold sizable "mestizo" communities. The Zamboangueño nation constitute an authentic and distinct ethnolinguistic identity because of their coherent cultural and historical heritage, most notably