 Gildas' 6th-century polemic "De Excidio et Conquestu Britanniae" ("On the Ruin and Conquest of Britain"), written within living memory of Badon, mentions the battle but does not mention Arthur.Arthur is not mentioned in the "Anglo-Saxon Chronicle" or named in any surviving manuscript written between 400 and 820.He is absent from Bede's early-8th-century "Ecclesiastical History of the English People", another major early source for post-Roman history that mentions Badon.