Prehistoric artifacts suggest a neolithic era independently developed in New Guinea

(American Association for the Advancement of Science) New artifacts uncovered at the Waim archaeological site in the highlands of New Guinea — including a fragment of the earliest symbolic stone carving in Oceania — illustrate a shift in human behavior between 5,050 and 4,200 years ago in response to the widespread emergence of agriculture, ushering in a regional Neolithic Era similar to the Neolithic in Eurasia.