Anthropologists now believe it first appeared around A.D. 100.

ARCHAEOLOGY
The tiny gold cross suggests that Danes might have embraced Christianity earlier than we previously thought.
The vessel is believed to be the 'Esmeralda,' which sank during a storm in 1503.
Just because an artifact is ancient or historically significant or even sought after for years doesn't mean its owner is aware of it.
The pendant, which is engraved with a series of lines, dates back 11,000 years.
Limestone, chicken feathers, and flaming pigs have all been deployed to gruesome ends.
Thanks to data obtained by remote sensing methods, archaeology buffs have spotted several long-vanished highways.
Bioarchaeologist Kristina Killgrove writes for mental_floss about her research on skeletons from Rome, just published today.
They found the remains of nearly 200 carnivorous animals, including golden eagles, pumas, jaguars, wolves, and rattlesnakes.
Experts believe they're the oldest human tracks ever discovered in the Southwest.
Scientists spotted spear wounds and other evidence of human hunters on the skeleton of a woolly mammoth.
A researcher says the Romans’ dedication to cleanliness may have inadvertently created fertile conditions for parasites.
Researchers defrosted the ice mummy, took a sample of stomach tissue, and sequenced his gut microbiome.
Recent fieldwork has uncovered that the ancient city was both significantly larger and more involved in international trade than previously imagined.
The prolific mystery writer took an active part in her husband’s archaeology digs.
Melting glaciers in Italy are revealing something straight out of a horror movie: the preserved, remainds of soldiers from WWI.