Answer:
Creation of maps, beginning of the Portuguese Empire, beginning of the monopoly of the slave trade, improvement of the compass.
Explanation:
Enrique de Portugal, the infant of Portugal and the first Duke of Viseu, nicknamed El Navegante since the nineteenth century, was one of the protagonists of Portuguese politics in the first half of the fifteenth century and the beginning of the era of discoveries in Portugal. Because he was a son, brother and uncle of kings, he obtained a monopoly on explorations along the African coasts and the islands of the Atlantic Ocean. At the end of his life in his home in Sagres in the extreme southwest of the Iberian Peninsula.
The interest in astrological prediction and promoted the creation in the University of the Chair of an astrology chair, the discipline at the time of the infant. The later development of the Portuguese colonial empire.
