Another PNAS study found in the news. The authors have discovered that while beads of other colors (black, red, brown or yellow) were used commonly before, the new fashion of green colors in the area that spread between 11,600 and 8,200 BP meant that the beads or its materials had to be imported from afar (Syria, Cyprus, Arabia). The authors seem to argue about an amulet meaning for these beads therefore. Certainly in many cultures green is considered the color of hope, a meaning that probably comes from the Neolithic period. Sympathic magic (attributing magic powers via similarity) is also widespread.