La Brújula Verde reports that an international project led by Poland's University of Wroclaw has shed new light on the pre-Inca cultures of southern Peru. The project has focused on sites in the Atico River Valley and the adjacent Pacific coast. At the site of El Curaca, the team uncovered a cemetery of the Chuquibamba (Aruni) culture (ca. a.d. 1000–1450) consisting of collective tombs arranged in circular pits with stone-lined walls. One grave contained the remains of 24 men, women, and children who had been interred with an elaborate collection of funerary offerings, including ceramic, bone, and stone artifacts as...