section_path: Portuguese and Spanish trade and colonization in Asia/Decline of Portugal's Asian empire since the 17th century
section_name: Decline of Portugal's Asian empire since the 17th century
paragraph_text: Decline of Portugal's Asian empire since the 17th century
  
  The lucrative trade was vastly expanded when the Portuguese began to export slaves from Africa in 1541; however, over time, the rise of the slave trade left Portugal over-extended, and vulnerable to competition from other Western European powers. Envious of Portugal's control of trade routes, other Western European nations—mainly the Netherlands, France, and England—began to send in rival expeditions to Asia. In 1642, the Dutch drove the Portuguese out of the Gold Coast in Africa, the source of the bulk of Portuguese slave laborers, leaving this rich slaving area to other Europeans, especially the Dutch and the English.
  
  Rival European powers began to make inroads in Asia as the Portuguese and Spanish trade in the Indian Ocean declined primarily because they had become hugely over-stretched financially due to the limitations on their investment capacity and contemporary naval technology. Both of these factors worked in tandem, making control over Indian Ocean trade extremely expensive.
  
  The existing Portuguese interests in Asia proved sufficient to finance further colonial expansion and entrenchment in areas regarded as of greater strategic importance in Africa and Brazil. Portuguese maritime supremacy was lost to the Dutch in the 17th century, and with this came serious challenges for the Portuguese. However, they still clung to Macau and settled a new colony on the island of Timor. It was as recent as the 1960s and 1970s that the Portuguese began to relinquish their colonies in Asia. Goa was invaded by India in 1961 and became an Indian state in 1987; Portuguese Timor was abandoned in 1975 and was then invaded by Indonesia. It became an independent country in 2002, and Macau was handed back to the Chinese as per a treaty in 1999.