Climate change caused empire's fall, tree rings reveal

(Phys.org) —A handful of tree ring samples stored in an old cigar box have shed unexpected light on the ancient world, thanks to research by archaeologist Sturt Manning and collaborators at Cornell, Arizona, Chicago, Oxford ...

Radiocarbon dating gets a postmodern makeover

For decades, radiocarbon dating has been a way for scientists to get a rough picture of when once-living stuff lived. The method has been revolutionary and remains one of the most commonly used dating methods to study the ...

World's Oldest Leather Shoe Found in Armenia

(PhysOrg.com) -- A perfectly preserved shoe, 1,000 years older than the Great Pyramid of Giza in Egypt and 400 years older than Stonehenge in the UK, has been found in a cave in Armenia.

Woolly mammoth extinction has lessons for modern climate change

Although humans and woolly mammoths co-existed for millennia, the shaggy giants disappeared from the globe between 4,000 and 10,000 years ago, and scientists couldn't explain until recently exactly how the Flinstonian behemoths ...

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