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  2. List of pre-Columbian inventions and innovations of ...

    en.wikipedia.org/wiki/List_of_pre-Columbian...

    Metallurgical techniques later diffused from the Andean region of South America to Colombia and then later to Mesoamerica, where local artists and metallurgists developed even more unique techniques using a wide range of material, including alloys of copper-silver, copper-arsenic, copper-tin and copper-arsenic-tin.

  3. Metallurgy in pre-Columbian America - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    Sican tumi, or ceremonial knife, Peru, 850–1500 CE. Metallurgy in pre-Columbian America is the extraction, purification and alloying of metals and metal crafting by Indigenous peoples of the Americas prior to European contact in the late 15th century.

  4. Conservation and restoration of copper-based objects

    en.wikipedia.org/wiki/Conservation_and...

    In North America, copper mining began with marginal workings by Native Americans. Native copper is known to have been extracted from sites on Isle Royale with primitive stone tools between 800 and 1600. [12] Copper metallurgy was flourishing in South America, particularly in Peru around 1000 AD; it proceeded at a much slower rate on other ...

  5. Metallurgy in pre-Columbian Mesoamerica - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    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]

  6. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...

  7. Download, install, or uninstall AOL Desktop Gold

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    Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.

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  9. Copper - Wikipedia

    en.wikipedia.org/wiki/Copper

    In South America a copper mask dated to 1000 BC found in the Argentinian Andes is the oldest known copper artifact discovered in the Andes. [115] Peru has been considered the origin for early copper metallurgy in pre-Columbian America , but the copper mask from Argentina suggests that the Cajón del Maipo of the southern Andes was another ...