It had a monopoly on parts of Africa and traded for items such as gold, slaves, and ivory. All three of those were highly valuable on the international market. Portugal spent little time and effort in Brazil prior to the 1530s. The crown knew that it would have been very costly to develop areas of these areas, and that they were uncertain long-term ventures. In the 1530s however, there were reports of French settlers encroaching on Portuguese territory in Brazil. To counteract the French, the king of Portugal gave land grants to private citizens with the instructions to colonize. The early colonies in Brazil were not successful as the hostile indigenous people did not provide a market for which to sell goods, nor a cooperative workforce. In the 1570s the colony started to become successful with the injection of sugarcane and slave African labor. Then, in the eighteenth century there was the discovery of gold and