Thus separated in some sudden and dramatic way, Australia was quite forgotten by the rest of the world. In Asia, near by, the Chinese built up a curious civilization, and discovered, among other things, the use of the mariner's compass, but they do not seem to have ever attempted to sail south to what is now known as Australasia. The Japanese, borrowing culture from the Chinese, framed their beautiful and romantic social system, and, having a brave and enterprising spirit, became seafarers, and are known to have reached as far as the Hawaiian Islands, more than halfway across the Pacific Ocean to America; but they did not come to Australia. The Indian Empire rose to magnificent greatness; the Empires of Babylon, of Nineveh, of Persia, came and went. The Greeks, and the Romans later, penetrated to Hindustan. The Christian era came, and later the opening up of trade with the East Indies and with China. But still Australia slept, in her out-of-the-way corner, apart from the great streams of human traffic, a rich and beautiful land waiting for her Fairy Prince to waken her to greatness. There had been, though, some vague rumours of a great island in the Southern Seas. A writer of Chios (Greece) 300 years before the Christian era mentions that there existed an island of immense extent beyond the seas washing Europe, Asia, and Africa. It is thought that Greek soldiers who had accompanied Alexander the Great to India had brought rumours from the Indians of this new land. But if the Indians knew of Australia, there is no trace of their having visited the continent. Marco Polo, the Venetian traveller, who explored the East Indies, speaks of a Java Major as well as a Java Minor, and in that he may refer to Australia; but he made no attempt to reach the land. Some old maps fill up the ocean from the East Indies to the South Pole with a vague continent called Terra Australis; but plainly they were only guessing, and did not have any real knowledge. In the fifteenth and sixteenth centuries Spanish and Portuguese sailors pushed on bravely with the work of exploring the East Indies, and some of their maps of the period give indications of a knowledge of the existence of the Australian Continent. But the definite discovery did not come until 1605, when De Quiros and De Torres, Spanish Admirals, sailed to the East Indies and heard of the southern continent. They sailed in search of it, but only succeeded in touching at some of the outlying islands. One of the New Hebrides De Quiros called "Terra Australis del Espiritu Santo" (the Southern Land of the Holy Ghost), fancying the island to be Australia. That gave the name "Australia," which is all that survives to remind us of Spanish exploration.