Early Settlement (IMAGE) Columbia Climate School Caption The bed of this lake on the island of Eysturoy contains a sediment layer laid down around 500 AD that documents the first arrival of sheep, and thus humans, on the archipelago. Credit Raymond Bradley/UMass Amherst Usage Restrictions Credit must be given. License Original 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.