A newly-reformatted version of "On the Ruin and Conquest of Britain" (De Excidio et Conquestu Britanniae) by Gildas, the 6th-century English historian (trans. J. A. Giles). This research-and-reader-friendly version comes as a download-and-print PDF and boasts a clean, two-column layout, attractive font, clear chapter headings, and standard-sized text. Also included is a brief introduction to the author, Gildas. No substantial alterations or corrections have been made to the original source text