What language did the Anglo-Saxons speak?
History of England
The end of Roman rule in Britain facilitated the Anglo-Saxon settlement of Britain, which historians often regard as the origin of England and of the English people. The Anglo-Saxons, a collection of various Germanic peoples, established several kingdoms that became the primary powers in present-day England and parts of southern Scotland. They introduced the Old English language, which largely displaced the previous British language. The Anglo-Saxons warred with British successor states in Wales, Cornwall, and the "Hen Ogledd" (Old North; the Brythonic-speaking parts of northern England and southern Scotland), as well as with each other. Raids by Vikings became frequent after about AD 800, and the Norsemen settled in large parts of what is now England. During this period, several rulers attempted to unite the various Anglo-Saxon kingdoms, an effort that led to the emergence of the Kingdom of England by the 10th century.
Anglo-Norman language
In general, the Norman and French borrowings concerned the fields of culture, aristocratic life, politics and religion, and war whereas the English words were used to describe everyday experience. When the Normans arrived in England, their copyists wrote English as they heard it, without realising the peculiarities of the relationship between Anglo-Saxon pronunciation and spelling and so the spelling changed. There appeared different regional Modern-English written dialects, the one that the king chose in the 15th century becoming the standard variety.