Some theories date the route to around 400 or 500 CE; others suggest it goes back as far as 10,000 years ago to Paleo-Indian hunter-gatherers. "The Caminho de Peabiru was the most important transcontinental road in Pre-Columbian America, connecting people, territories and oceans," said Dr Claudia Parellada, a Brazilian archaeologist who has published several academic papers on the subject and is coordinator of the Archaeology Department at the Paranaense Museum in Curitiba where many of the remains from the trail's archaeological digs are housed.
