Pagi devoted his spare time to the study of history. Discerning numerous chronological errors, and frequently misstatements of facts in the of
Baronius, he made it his life-work to correct them and otherwise elucidate the work. Pagi's first volume was printed during his lifetime (Paris, 1689); the remaining three volumes, reaching till the year 1198, the last year in the work of Baronius, were completed in manuscript shortly before his death. The whole work was edited in four volumes by his nephew
François Pagi: (Geneva, 1705; second ed., 1727).
Mansi embodied it in his edition of the of Baronius (Lucca, 1736–59). The itself is not free of errors. His (Lyons, 1682), was printed also in (Lucca, 1740), pp. 1–136. In it, Pagi set down various rules for determining the consulship of the Roman emperors. It met with criticism from
Henry Noris and others; Pagi published a few minor treatises defending it. Pagi also published , and edited (Avignon, 1685). ==Sources==