Portuguese East India Company Portuguese East India Company The Portuguese East India Company ( or ) was a short-lived ill-fated attempt by Philip III of Portugal to create a national chartered company to look after interests in Portuguese India in the face on encroachment by the Dutch and English following the personal union of the Portuguese and Spanish Crowns. Portuguese trade with India had been a crown monopoly since the Portuguese captain Vasco da Gama opened the sea route to India in 1497-99. The monopoly had been managed by the Casa da Índia, the royal trading house founded around 1500. The Casa was responsible
Portuguese discoveries tip of Africa, disproving the view that had existed since Ptolemy that the Indian Ocean was separate from the Atlantic. Also at this time, Pêro da Covilhã reached India via Egypt and Yemen, and visited Madagascar. He recommended further exploration of the southern route. As the Portuguese explored the coastlines of Africa, they left behind a series of padrões, stone crosses inscribed with the Portuguese coat of arms marking their claims, and built forts and trading posts. From these bases, the Portuguese engaged profitably in the slave and gold trades. Portugal enjoyed a virtual monopoly of the Atlantic slave trade