All through the sixteenth century the South Seas were regarded as a mysterious wonderworld, whence Spain drew unlimited wealth of gold and silver bullion, of pearls and precious stones. Spain had declared the Pacific 'a closed sea' to the rest of the world. But in 1567 it happened that Sir John Hawkins, an English mariner, was cruising in the Gulf of Mexico, when a terrific squall, as he said, drove his ships landward to Vera Cruz, and he sent a messenger to the Spanish viceroy there asking permission to dock and repair his battered vessels.