Don Henry had now, it would appear, surmounted the principal obstacles opposed by ignorance or prejudice to the object of his laudable ambition. But there were many interests threatened by a continuance of discovery by sea. The military beheld with jealous dislike the distinction obtained by, and now willingly accorded to, a profession they held inferior to their own. The nobility dreaded the opening of a source of wealth which would raise the mercantile character, and in an equal degree lower the assumptions and pretensions of artificial social rank. Political economists suggested that there were barren spots in Portugal as capable of cultivation as any desert islands in the sea or any sandy coasts within the tropics. It was urged, too, that any Portuguese who should pass Cape Bojador would inevitably be changed into a negro, and would forever retain this brand of his temerity. While Henry was resisting the arguments of his detractors, his father died, and was succeeded upon the throne by his son Edward. The latter gave every encouragement to the maritime projects of his brother, and, in 1433, one Gilianez, having incurred the displeasure of Henry, determined to regain his favor by doubling Cape Bojador. Though we are without details of the voyage, we know at least that it was successful, and that the historians of the time represent the feat as more remarkable than any of the labors of Hercules. Gilianez reported that the sea beyond Bojador was quite as navigable as the Mediterranean, and that the climate and soil of the coast were agreeable and fertile. He was sent the next year, with Henry's cup-bearer, Baldoza, over the same route, and they advanced ninety miles beyond the cape with the conscious pride of being the first Europeans who had ventured so far towards the fatal vicinity of the equator. Though they saw no inhabitants, they noticed the tracks of caravans. They were ordered, in 1435, to resume their discoveries, and to prolong their voyage till they should meet with inhabitants. In latitude 24° north, one hundred and thirty miles beyond Bojador, two horses were landed, and two Portuguese youths, sixteen years of age, were directed to mount them and advance into the interior. They returned the next morning, saying that they had seen and attacked a band of nineteen natives. A strong force was despatched to the cave in which they were said to have taken shelter: their weapons only were found. This spot was called _Angra dos Cavallos_, or Bay of Horses. The two vessels continued on forty miles farther, to a place where they killed a large number of seals and took their skins on board. Their provisions were now nearly exhausted, and the expedition, having penetrated nearly two hundred miles beyond the cape, returned to Lisbon. [Illustration: CAPE VERD.]