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South American metal working seems to have developed in the Andean region of modern Peru, Bolivia, Ecuador, Chile, and Argentina with gold and native copper being hammered and shaped into intricate objects, particularly ornaments. [1] [5] Recent finds date the earliest gold work to 2155–1936 BC. [1] and the earliest copper work to 1432–1132 BC.
Copper bells, axe heads and ornaments from various parts of Chiapas (1200–1500) on display at the Regional Museum in Tuxtla Gutierrez, Chiapas.. The emergence of metallurgy in pre-Columbian Mesoamerica occurred relatively late in the region's history, with distinctive works of metal apparent in West Mexico by roughly 800 CE, and perhaps as early as 600 CE. [1]
Alcoholic beverages - Several fermented beverages were produced by Native Americans, such as Pulque, Tepache, Agave wine and Cauim. Some of these beverages have gained popularity in modern times, particularly in Mexico. [2] Almanacs – Almanacs were invented independently by the Maya peoples. Their culture arose, and presumably began using ...
After visiting earthworks in Ohio and New York, Priest concluded that these mounds could be traced back to a lost race that had inhabited America even before the Native Americans. This idea is now referred to as the "mound builder myth" and still has supporters in society today. The book grew in popularity because of Priest's views on Native ...
Native copper is an uncombined form of copper that occurs as a natural mineral. Copper is one of the few metallic elements to occur in native form, although it most commonly occurs in oxidized states and mixed with other elements. Native copper was an important ore of copper in historic times and was used by pre-historic peoples.
The others – copper, lead, silver, tin, iron, and mercury – occur primarily as minerals, although native copper is occasionally found in commercially significant quantities. These minerals are primarily carbonates , sulfides , or oxides of the metal, mixed with other components such as silica and alumina .
Native Americans had long mined surface exposures of copper veins near the New Cornelia for pigments: red copper oxide and green copper carbonate.Spanish miners are known to have excavated test shafts in the area by 1750, but the amount of copper produced is not known.
The 'water jacket' blast furnace design for non-ferrous smelting arose in North America, during the 1870s, [3] and an alternative name for it, in Australia, was 'American water jacket furnace'. [4] The design evolved from earlier German cupola furnace designs, with the distinguishing innovation being a well-controlled cooling of the furnace shell.