Estevanico was a translator and guide, and was probably the first person of any race from outside the Americas to enter what’s now Arizona and New Mexico – which happened in 1539.
Research:

Behind the Scenes Minis: Piece of Work
17:48

E. Virgil Neal: Hypnotist, Fraudster, Tycoon, Part 2
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E. Virgil Neal: Hypnotist, Fraudster, Tycoon - Part 1
35:28