Cereal Grain Findings on the Map (IMAGE) University of Helsinki Caption In the study, the age of cereal grains found at the sites tagged with numbers in the map were determined with radiocarbon dating. These findings demonstrate that hunter-gatherers adopted farming on the Åland Islands on the southwestern coast of Finland and in eastern Sweden already 5,000 years ago. Credit Photo: 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.