[Covilhā, traveling] in some of the Ports of the Red Sea, heard much talk of a most Potent Christian King of the Abessines, that us'd to carry a Cross in his Hands; as also of his Subjects, who were great Favourers if not Followers of the Christian Religion. Believing it therefore to be of little moment whether this famous Monarch liv'd in Asia or in Africa, he certainly persuades himself, as being Ignorant both in History and Geography that this was the Prince so much sought after.... These glad Tidings the Portugals sooner believ'd, than consider'd, and so spread the News all over Europe for real Truth; Credulaity gaining easily upon those that are ignorant of Foreign Affairs and Kingdoms.
(qtd. in Silverberg, p. 317)