Gibbon's account of Rome from the height of the Antonines to the fall of Constantinople in 1453 — 71 chapters across six volumes, in the 1845 Milman/Guizot edition with all 8,500+ footnotes intact. Every footnote is extracted into its own reader panel, distinguishing Gibbon's own classical source citations from Guizot's later editorial corrections, so the apparatus stays readable instead of crowding out the text.