The last decade has seen renewed interest in late Roman Britain and its transition to Saxon England. There have been a number of attempts to clarify the chronology of events between the collapse of the central Roman administration and the establishment of a substantial and permanent Saxon presence. These attempts at chronological certainty have, of necessity, focused upon the entries in the so-called Gallic Chronicles since these sources are the nearest in date of composition to the events which they record. Two events in the Chronicles relate to Britain. One records a Saxon invasion in the first decade of the fifth century whilst the second alludes to the subjection of Britain, or some substantial part of it, to the Saxons some thirty years later.
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Jones et al. (1988) studied this question.