Portuguese colonization of the Americas Portuguese colonization of the Americas Portugal was the leading country in the European exploration of the world in the 15th century. The Treaty of Tordesillas in 1494 divided the Earth outside Europe into Castilian and Portuguese global territorial hemispheres for exclusive conquest and colonization. Portugal colonized parts of South America (mostly Brazil), but also made some unsuccessful attempts to colonize North America in present-day Canada. Based on the terms of the Treaty of Tordesillas, the Portuguese Crown claimed it had territorial rights in the area visited by the Genoese explorer John Cabot in 1497 and 1498 on behalf of the
Decolonization of the Americas between Canada and Florida, the United States would later eventually acquire various other North American territories from the British, French, Spanish, and Russians in succeeding years, effectively decolonizing these areas formerly under European control. The American and French Revolutions had profound effects on the Spanish, Portuguese and French colonies in the Americas. Haiti, a French slave colony, was the first to follow the United States to independence, during the Haitian Revolution, which lasted from 1791 to 1804. Thwarted in his attempt to rebuild a French empire in North America, Napoleon Bonaparte sold Louisiana to the United States and from then