140 WORKMEN AND HEROES little kingdom lor which he had wrought with such self-denying patience. This grandson of John of Gaunt has received scant credit for that wonderful series of discoveries by which the accessible earth was more than quadrupled in extent. Yet without him, there is no reason to believe that either the coast of Africa would have been explored, the Cape of Good Hope passed, or the American con- tinents discovered for a century, at least, perhaps for two or three centuries after- ward. He was the father of discovery, and it was his hand more than any or all others that rolled up the curtain of darkness which hid the major part of the hab- itable globe. All the navigators and discoverers of that marvellous age were but the agents of his genius and the creatures of his indefatigable exertion. The son of the most noted sovereign of Portugal, and grandson of that rugged Englishman from whose loins have sprung so many royal lines, he was fitted by descent and training for the heroic part which he performed. Distinguished for military achievement before he had come to man's estate, urged by four of the leading sovereigns of Europe to take command of their armies, and made Grand Master of the Order of Christ before he was twenty-five, there is hardly any limit to the military distinction he might have won or the power he might have secured, had he sought his own advancement. But he gave himself to Portugal, and determined to raise the little kingdom his father had so gallantly held against jealous and powerful neighbors, to the rank of a first-class power. To seek to enlarge a realm shut in by mountains on one side and the sea upon the other, by constant strife with embittered enemies, he saw at once was to invite annihilation. The sea afforded the only avenue of hope, the continent of Africa, where his father had already gained something from the Moor, in battling with whom he had himself won renown, the only vis- ible opportunity. So he determined to explore, and finally, to circumnavigate Africa, and give to Portugal whatever of power or wealth the ocean or the dark continent might hide. He believed that India might be reached by sailing round its southern extremity, and he determined to pour the wealth of the Orient into the treasury of the kingdom his father had established. In 1418, therefore, he turned his back on personal ambition, laid aside the glory of military renown, and sat himself down to a hermit's life and a scholar's labors on the promontory of Sagres, in the province of Algarve, that point on the coast of Portugal which stretches farthest out into the Atlantic in the direction of his hope. Here he built an observatory whose light was the last his captains saw as they went forth, and the first to greet them on their return. Here he opened a school of navigation, and here were trained the discoverers who opened the way for all who came afterward. Here was not only nourished the impulse which fired the hearts of Columbus and his contemporaries, but here was taught the science and here were gathered the facts which enabled them to achieve success. Up to that time, Cape Nun had been the boundary of the modern world to the southward. With infinite patience, Prince Henry labored to convince his cap- tains that the terrors which they thought lay at the southward of this point were wholly imaginary. Little by little his caravels crept down the coast of Africa.