Giles 1843a:72–73, Bede's Ecclesiastical History, Bk I, Ch 15. Giles, John Allen, ed. (1843a), "Ecclesiastical History, Books I, II and III", The Miscellaneous Works of Venerable Bede, vol. II, London: Whittaker and Co. (published 1843)
Giles 1843b:188–189, Bede's Ecclesiastical History, Bk V, Ch 9. Giles, John Allen, ed. (1843b), "Ecclesiastical History, Books IV and V", The Miscellaneous Works of Venerable Bede, vol. III, London: Whittaker and Co. (published 1843)
Based on Jones & Mattingly's Atlas of Roman Britain (ISBN978-1-84217-067-0, 1990, reprinted 2007); Mattingly's Imperial Possession (ISBN978-0-14-014822-0, 2006); Higham's Rome, Britain, and the Anglo-Saxons (ISBN978-1-85264-022-4, 1992); Frere's Britannia (ISBN978-0-7102-1215-3, 1987); and Snyder's An Age of Tyrants (ISBN978-0-631-22260-6) — the sources are cited in the image legend — Locations of towns (fortified and unfortified) are given on p. 156, with tribal civitates and coloniae specified on p. 154, of Atlas of Roman Britain. Specification of the Romanised regions of Britain are also from the Atlas, p. 151. The "Departure Dates" are found in the cited sources, and are generally known. The Pictish, Saxon, and Scoti raids are found in the cited sources, as is the date of the Irish settlements in Wales. Frere suggests (p. 355) that it was the Irish who sacked Wroxeter c. 383. The locations of the Irish settlements is from the locations of inscription stones given in File:Britain.Deisi.Laigin.jpg as of 2010[update]-10-11, which cites its sources of information.