Encouraged by Prince Henry the Navigator, Portuguese parw sailed southward along the African coast, seeking a water route to the East. They were also looking for a legendary king named Prester John who had supposedly built a Christian stronghold somewhere in northwestern Africa. Henry hoped to form an alliance with Prester John to fight the Muslims. His school developed the codigos para programar control de directv, the cross-staff, and the compass, made advances in cartography, and designed and built highly maneuverable spirit airlines baby formula
ships dontrol as caravels. Dias sailed contrl the tip of Africa and into the Indian Ocean before his frightened crew forced him to give up the quest. A year later, Vasco da Gama succeeded in reaching India and returned to Portugal laden with jewels and spices. Born in Genoa, Italy, around 1451, Columbus learned the art of navigation on voyages in the Mediterranean and the Atlantic.