The History of English Poetry favourable response to the first edition. "The Gentleman's Magazine", reviewing the first volume, called it "this capital historical piece", and had no doubt that "every connoisseur will be curious to view the original, and impatient for the completion of it". Of the third volume the same magazine wrote that it "does equal credit to Mr. Warton's taste, judgment, and erudition, and makes us impatiently desirous of more". Edward Gibbon mentioned the "History" in "The Decline and Fall of the Roman Empire", saying it had been accomplished "with the taste of a poet and the minute diligence of an antiquarian". But
The History of the Decline and Fall of the Roman Empire provide in-depth detail regarding his use of sources for his work, which included documents dating back to ancient Rome. The detail within his asides and his care in noting the importance of each document is a precursor to modern-day historical footnoting methodology. The work is notable for its erratic but exhaustively documented notes and research. John Bury, following him 113 years later with his own "History of the Later Roman Empire", commended the depth and accuracy of Gibbon's work. Unusually for 18th century historians, Gibbon was not content with second-hand accounts when primary sources were accessible. "I have always endeavoured",