Finiunt Petri de Abano remedia uenenorum. Rome in domo nobilis uiri Iohannis Philippi de Lignamine Messanensis, S. D. N. familiaris, hic tractatus impressus est. Anno domini Mcccclxxv. die xxvii Mensis Ianuarii, Pontificatu Syxti IIII, Anno eius quarto. End the remedies of Petrus de Abano against poisons. At Rome in the house of the noble gentleman Ioannes Philippus de Lignamine of Messina, servant of our holy Lord, this tract was printed. In the year of the Lord 1475, on the 27th day of the month January, in the pontificate of Sixtus IV, in his fourth year. The fourth year of Sixtus IV began on 9th August, 1474, and ended 8th August, 1475; therefore January, 1475, in his fourth year must be January, 1475, according to our modern reckoning, not January, 1476, as it would be had the year been calculated from March 25th or Easter day—two similar examples will be found in Hain’s “Repertorium Bibliographicum” under the numbers 255* and 2050*. On the other hand, Caxton’s colophon to the “Mirrour of the World” ends: whiche book I began first to translate the second day of Ianyuer the yer of our lord M.cccc.lxxx. And fynysshed the viij day of Marche the same yere, and the xxj yere of the Regne of the most Crysten kyng, Kynge Edward the fourth. Vnder the shadowe of whos noble proteccion I have emprysed and fynysshed this sayd lytyl werke and boke. Besechynge Almyghty god to be his protectour and defender agayn alle his enemyes and gyue hym grace to subdue them, And inespeciall them that haue late enterpraysed agayn ryght & reson to make warre wythin his Royamme. And also to preserue and mayntene hym in longe lyf and prosperous helthe. And after this short and transytorye lyf he brynge hym and vs in to his celestyal blysse in heuene. Amen. Caxton me fieri fecit. As the twenty-first year of Edward IV ran from 4th March, 1481, to 3d March, 1482, Caxton’s 8th March, 1480, must clearly be 1480, old style, or 1481 of our reckoning, and Caxton is thus shown to have begun his year on March 25th. So again the long colophon or epilogue to the “Cordyale” tells us that the book “was deliuered to me William Caxton by my saide noble lorde Ryuiers on the day of purificacion of our blissid lady, fallyng the tewsday the secund day of the moneth of feuerer. In the yere of our lord M. cccc. lxxviij for to be enprinted.… Whiche werke present I begann the morn after the saide Purification of our blissid Lady, whiche was the daye of Seint Blase Bisshop and Martir, And finisshed on the euen of thannunciacion of our said blissid Lady, fallyng on the Wednesday the xxiiij. daye of Marche in the xix yere of Kyng Edwarde the fourthe.”