The Anglo-Saxons were the dominant people living in England from the mid-5th century AD until the Norman conquest in 1066. They spoke Germanic languages and are identified by Bede as the descendants of three powerful tribes. These were the Angles, Saxons, and Jutes. Their language, "Anglo-Saxon" or Old English, came from West Germanic dialects. It changed into Middle English from about the 11th century. Old English was divided into four main dialects: West Saxon, Mercian, Northumbrian and Kentish.