'Ancient Peruvians may not have been as sophisticated as we are today, but they had good taste in jewelry.
A University of Arizona anthropologist has discovered a 4,000-year-old necklace that has been radiocarbon-dated as the oldest known gold artifact in the Americas.
Professor Mark Aldenderfer found the nine-bead necklace while excavating a burial site in 1999 near Lake Titicaca in southeastern Peru.'
