User talk:2A02:1205:5038:9540:F08E:5DF:D45:DBC2

The following statement presented in article 'Metallurgy in pre-Columbian America', chapter 'South America' is not correct: 'Ice core studies in Bolivia however suggest copper smelting may have begun as early as 2000 BCE.[8]' Ref.8 states in their abstract:'We find earliest anthropogenic Cu pollution during the Early Horizon period ~700–50 BC, and attribute the onset of intensified Cu smelting in South America to the activities of the central Andean Chiripa and Chavin cultures ~2700 years ago.' 2700 years ago obviously means 700 BCE and not 2000 BCE, as quoted in Wikipedia. 2A02:1205:5038:9540:F08E:5DF:D45:DBC2 (talk) 19:41, 3 May 2020 (UTC)