How Did Portugal Became So Rich During The European Voyages Of Exploration?

How Did Portugal Became So Rich During The European Voyages Of Exploration? There, wheat and later sugarcane were cultivated, as in Algarve, by the Genoese, becoming profitable activities. This helped them become wealthier. Henry the Navigator took the lead role in encouraging Portuguese maritime exploration until his death in 1460. How did Portugal become rich?