Colonialism normally refers to a period of history from the 15th to the 20th century when people from Europe established colonies on other continents. The reasons for the practice of colonialism at this time include:
Some colonists also felt they were helping the indigenous population by bringing them civilization. However, the reality was often subjugation, displacement or death. Colonialism and imperialism were ideologically linked with mercantilism.
The Treaty of Butre between the Netherlands and Ahanta was signed at Butre (historical spelling: Boutry), Dutch Gold Coast on 27 August 1656. The treaty regulated the jurisdiction of the Netherlands and the Dutch West India Company over the town of Butre and the surrounding country of Upper Ahanta, creating a Dutch protectorate over the area. Being a dedication, the treaty is rather unilateral in its terms. Ahanta declared that in view of former good relations with the Dutch government established in the past at neighbouring Axim, and in view of the adverse circumstances caused by the war with Encasser, it was decided to invite the Dutch director general at Elmina to come to Butre and "accept possession of that what was offered him". Ahanta placed itself under the protection of both the States General of the United Netherlands and the Dutch West India Company. This was done on the condition that the Dutch fortified and defended the places under their protection, and kept the Ahanta free from the dangers of war.
When the Dutch transferred their possessions on the Gold Coast to the British on 6 April 1872, the treaty of 1656 was still in effect, having regulated political relations between the Dutch and Ahanta for more than 213 years. The treaty was one of the oldest and one of the longest functioning treaties between an African and a European state. After the transfer the British started to develop their own policies towards the now united Gold Coast possessions. Ahanta resisted the British take-over, with the result that the British Royal Navy bombed Butre in 1873 to achieve a political submission. In 1874 Britain declared the entire Gold Coast – including Ahanta – a Crown Colony, de jure and de facto ending all former diplomatic and legal obligations.
Pedro Álvares Cabral (c. 1467 or 1468 – c. 1520) was a Portuguese noble, military commander, navigator and explorer. Cabral conducted the first substantial exploration of the northeast coast of South America and claimed it for Portugal. While details of Cabral's early life are sketchy, it is known that he came from a minor noble family and received a fine education. He was appointed to head an expedition to India in 1500, following Vasco da Gama's newly opened route around Africa. The object of the undertaking was to return with valuable spices and to establish trade relations in India—bypassing the monopoly on the spice trade then in the hands of Arab, Turkish and Italian merchants. His fleet of 13 ships sailed far into the western Atlantic Ocean, perhaps intentionally, where he made landfall on what he initially assumed to be a large island. As the new land was within the Portuguese sphere according to the Treaty of Tordesillas, Cabral claimed it for the Portuguese Crown. He explored the coast, realizing that the large land mass was likely a continent, and dispatched a ship to notify King Manuel I of the new territory. The continent was South America, and the land he had claimed for Portugal later came to be known as Brazil. The fleet reprovisioned and then turned eastward to resume the journey to India. Cabral was later passed over, possibly as a result of a quarrel with Manuel I, when a new fleet was assembled to establish a more robust presence in India. Having lost favor with the King, he retired to a private life of which few records survive. His accomplishments slipped into obscurity for more than 300 years. Nevertheless, although he was overshadowed by contemporary explorers, Cabral today is regarded as a major figure of the Age of Discovery.