This document discusses key figures and events in 15th century Portuguese maritime exploration. It mentions Prince Henry the Navigator's establishment of a school of navigation at Sagres and his role in advancing Portuguese shipbuilding and chartmaking techniques. It also outlines Bartolomeu Diaz's 1488 voyage around the southern tip of Africa, which he initially named the "Cape of Storms" but was later renamed the "Cape of Good Hope" by da Gama. Finally, it provides brief details of Vasco da Gama's 1497-1499 voyage, including stopping at the East African coast and Calicut on the Malabar Coast of India, establishing the sea route to trade spices from India.