volume 544, issue 7651, P427-433 2017
DOI: 10.1038/nature22043
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Abstract: Barley remains dated to the dawn of agriculture have been found at several archaeological sites 1,2 . In addition to indications that barley was an important food crop, recent excavations have fuelled speculation that beverages from fermented grains may have motivated early Neolithic hunter-gatherers to erect some of humankind's oldest monuments 3,4 . Moreover, brewing beer may also have played a role in the eastward spread of the crop after its initial domestication in the Fertile Crescent 5,6 . Since 2…

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