Upvote:2
Archaeologist John Adivasio, from the Florida Atlantic University, with the collaboration of a specialized team, has discovered a variety of artifacts in Huaca Prieta, Peru that may date as far as 15000 B.C., some of them were used for fishing and agriculture. Such artifacts prove the existence of what we may call a culture, although the chronology may be off by a thousand years or so. There's also an interesting reading that traces back maize and corn to Peru. I guess this answers your question, you may ask any further doubt you have. Earlier articles state that we can be sure of the existence of a peruvian civilization starting from 1800 B. C.
Edit: I've found other reputable sources, Haas (2001) and Mann (2005), claiming that the oldest human settlement in Peru is Norte Chico, more specifically that of Huaricanga. It is worth noting that both sources are somewhat outdated compared to the article of Ph.D. Adivasio, written in 2017.