Millennia-Old Barley Grains (IMAGE) University of Helsinki Caption Researchers determined the age of millennia-old barley grains using radiocarbon dating. Credit Santeri Vanhanen, CC-BY 4.0 licence Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.