Impronte di 2500-3000 anni fa da Pima County

23 Gennaio 2016

Ritrovate impronte umane nella Contea di Pima, in Arizona. Si sono conservate nel fango di un antico campo irrigato del 500-800 a. C. Sarebbero relative a un’epoca di transizione verso l’agricoltura.

Link: Arizona Daily Star – Tucson.com; Fox – Carolina; The History Blog; ABC 15; KVOA.
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