Portuguese Empire capital Lisbon
In 1488, Bartolomeu Dias rounded the Cape of Good Hope on the southern tip of Africa, proving false the view that had existed since Ptolemy that the Indian Ocean was land-locked. Simultaneously Pêro da Covilhã, traveling secretly overland, had reached Ethiopia, suggesting that a sea route to the Indies would soon be forthcoming.As the Portuguese explored the coastlines of Africa, they left behind a series of padrões, stone crosses engraved with the Portuguese coat of arms marking their claims, and built forts and trading posts. From these bases, they engaged profitably in the slave and gold trades. Portugal enjoyed a virtual monopoly on the African seaborne slave trade for over a century, importing around 800 slaves annually. Most were brought to the Portuguese capital Lisbon, where it is estimated black Africans came to constitute 10 percent of the population.
seat of government administrative center headquarters main city principal city