Scholars such as Christopher Snyder believe that during the 5th and 6th centuries – approximately from 410 when the Roman legions withdrew, to 597 when St Augustine of Canterbury arrived – southern Britain preserved an active sub-Roman culture[2] that survived the attacks from the Anglo-Saxons and even used a vernacular Latin when writing.[3]
^Evans, D. Ellis (31 January 1983), Haase, Wolfgang (ed.), "Language Contact in Pre-Roman and Roman Britain", Sprache und Literatur (Sprachen und Schriften [Forts.]), Berlin, Boston: De Gruyter, doi:10.1515/9783110847031-008, ISBN978-3-11-084703-1