Alexander Freiherr von Humboldt (1769-1859) was a renowned German scientist and explorer. He spent five years (1799-1804) on an expedition to South America. While there he discovered the Casiquiare River, which links the Amazon and Orinoco rivers.

Humboldt expressed the view that Atlantis had probably been located in America. He also considered the possibility of ancient links between Europe and the Americas, pointing out remarkable similarities between the Nahuatl and Greek languages. An example of which is the Aztecan Nahuatl language’s teo-cali (god’s house) and the Greek theoukalia (shrine or god’s house).

However, Galanopoulos and Bacon assert^{[263 p.96]} that Humboldt favoured a Mediterranean site for the Atlantis drama.