In 1634, the Lutherans made several attempts to establish missions in Abyssinia, in order, as they said, to bring that benighted people to the knowledge of a purer religion, and a more rational system of worship, although it might appear questionable to some which church of the two most required a reformation in its rites and doctrines. In accordance with this design, the learned Heyling of Lubec made a voyage into Abyssinia, where he resided many years, and acquired such a distinguished place in the confidence and esteem of the sovereign, that he was honoured with many important offices, and finally became prime minister of the realm. In this eminent station he acquitted himself in the most creditable manner, and gave many proofs of his zeal both for the interests of religion and the public good. He finally set out for Europe on business of importance, but never arrived there; and, as the journey was being performed by land, it is supposed that he perished in the deserts of Nubia. Subsequently, however, a communication was kept up between the two countries, and Ernest, duke of Saxe-Gotha, surnamed the Pious, on account of his sanctity and virtue, made new attempts to diffuse a knowledge of the gospel, as taught in his church, among the Abyssinians. This design was formed through the counsels of the famous Ludolph, and was to have been executed by the ministry of Gregory, an Abyssinian abbot who had resided some time in Europe. This missionary sailed from Antwerp, in the ship Katerina, in 1657, but, in passing Cape Horn, she was unfortunately wrecked, and all on board perished. The mission, thus frustrated, was not designed to be abandoned; for the prince, in 1663, entrusted the same important commission to John Michael Wansleb, a native of Erfurt, to whom he gave the wisest instructions, and whom he charged particularly to employ all rational and consistent means to excite in the Abyssinian nation a favourable opinion of the Germans, as this, more than anything else, would contribute to the success of the enterprise. But this wise and laudable undertaking failed through the inconstancy of the worthless man to whom it was confided, and whose virtue was by no means equal to his ability. Instead of continuing his journey into Abyssinia, he remained for some time in Egypt, and finally returned to Europe without ever seeing the country he was intended to visit. But he entertained many uneasy apprehensions of the account that would naturally be demanded of his conduct, and of the manner in which he had expended the large sums of money designed for the Abyssinian expedition. These apprehensions, together with the consciousness of guilt, made him desperate. Hence, instead of returning to Germany, he went to Rome, and, in 1667, embraced the doctrine of that church, at least in open profession, and entered into the Dominican order.