Portuguese discovery of the sea route to India of the "São Gabriel" and its sister ship, the "São Rafael" that were used by Vasco da Gama to sail past the Cape of Good Hope and continue to India. One of the sailors, Bartolomeu Dias passed the southernmost point of Africa known as the Cape of Good Hope in 1488. He declared it possible to travel to India by going around Africa. The Portuguese were then able to make an immense profit by using their own ships to retrieve the spices. This global expedition was launched on 8 July 1497. It concluded two years later with the entry of
First Dutch Expedition to Nusantara their spice in Lisbon, Portugal, as they could still make a decent profit by reselling it throughout Europe. However, in the 1590s Spain, which was at war with the Netherlands, was in a dynastic union with Portugal, thus making continued trade practically impossible. This was intolerable, and the Dutch would have been glad to circumvent the Portuguese monopoly and go straight to Indonesia, but the sailing directions needed in order to reach Indonesia were jealously guarded by the Portuguese. However, in 1592 the cartographer Petrus Plancius published a series of charts showing, in exact detail, the route to the Indies.