But what were the results of Henry’s great organisation and activities? Indirectly he was the cause of Columbus finding the New World when looking for India in 1492; of Da Gama reaching India in 1498; of Magellan encircling the globe in 1520–2: less directly still to him may be traced the round-the-world voyages of Drake and Anson. To Prince Henry the Navigator may be ascribed at least half the honour in conquering the islands of the Atlantic and the western coast of Africa, the doubling of the Cape of Good Hope, the founding of transoceanic empires and magnificent cities. To his genius may be traced the opening up of the Western Hemisphere, and the sea path to India and the Far East, the discovery of Australia, and other voyages embraced within the limits of a century. In fact, but for Henry the Navigator we should have remained for a much longer period ignorant of one-half of the world. The fifteenth and sixteenth centuries are essentially a sea epoch more than any age in history, and their influence was felt in all subsequent periods even down to the present day. Sagres focussed all the world’s knowledge of the nautical arts, and shed a powerful searchlight which revealed to nations the wonderful possibilities that lay by way of the sea. It led to India and America, to gold mines and rich plantations, to wealth, to prosperity, to power. The seamanship, the navigation, and the shipbuilding in that narrow strip of Portugal were the best which existed anywhere. [Illustration: FIFTEENTH-CENTURY SHIPBUILDING YARD]