An international team of researchers has found evidence that people lived on islands in the Azores archipelago approximately 700 years earlier than prior evidence has shown. In their paper, published in Proceedings of the National Academy of Sciences, the group describes their study of sediment cores taken from lakes on some of the islands in the archipelago.Due to the absence of other evidence, historians have believed that people first arrived in the Azores in 1427, when Portuguese sailor Diogo de Silves landed on Santa Maria Island. Soon thereafter, others from Portugal arrived and made the archipelago their home. In this...