Hence it is clear that Platina has looked wrongly upon the bull as the outcome of fear of comets. The historians of the 16th and 17th centuries contented themselves with quoting Platina more or less accurately (Calvisius 1605, Spondanus 1641, Lubienietski 1666). Fabre (1726) in his continuation of the Histoire Ecclésiastique by Fleury gave a somewhat free paraphrase. Bruys (1733), an apostate (who afterwards entered the Church again), copies Fleury-Fabre adding que le Pape profita en habile homme de la superstition et de la crédulité des peuples. It is only when we come to Laplace's , that we find the expression that the pope ordered the comet and the Turks to be exorcized (conjuré), which expression we find again in Daru's poem L'Astronomie. Arago (Des Comètes en général etc. Annuaire du Bureau des Longitudes 1832, 244) converts it into an excommunication. Arago's treatise was soon translated into all the European languages after which time the appearance of the comet (1456) is hardly ever mentioned, but this historical lie must be repeated in various shapes. Smyth (Cycle of celestial objects) speaks of a special protest and excommunication exorcizing the Devil, the Turks, and the comet. Grant (History of physical astronomy) refers to the publication of a bull, in which Callixtus anathematized both the Turks and the comet. Babinet (Revue des deux mondes, 23 ann., vol. 4, 1853, 831) has the pope lancer un timide anathème sur la comète et sur les ennemis de la Chrétienté, whilst in the battle of Belgrade les Frères Mineurs aux premiers rangs, invoquaient l'exorcisme du pape contre la comète. In different ways the legend is repeated by Chambers, Flammarion, Draper, Jamin, Dickson White, and others. Published and unpublished works Divi Ludovici Marchionis Mantuae somnium (ca. 1454–1456), ed. A. Portioli, Mantua 1887 Oratio de laudibus illustris ac divi Ludovici Marchionis Mantuae (ca. 1457–1460), in F. Amadei, Cronaca universale della città di Mantova, ed. G. Amadei, E. Marani and G. Praticò, vol. II, Mantua 1955, pp. 226–234 Vita Nerii Capponi (ca. 1457–1460), in Rerum Italicarum scriptores, vol. XX, Milan 1731, cols 478-516 Vocabula Bucolicorum, Vocabula Georgicorum (ca. 1460–1461), MS Berlin, Staatsbibliothek, Lat. qu. 488, fols 58r-59v, 59v-65r Commentariolus de vita Victorini Feltrensis (ca. 1462–1465), in Il pensiero pedagogico dello Umanesimo, ed. E. Garin, Florence 1958, pp. 668–699 Epitome ex primo [-XXXVII] C. Plinii Secundi libro De naturali historia (ca. 1462–1466), e.g. MS Siena, Biblioteca comunale, L.III.8, fols 73r-357v