For Anglo-American settlers, the treaty was a theoretical success. By confirming the conquest of Canada and extending British property to Mississippi, the settlers no longer had to worry about the risk of French invasion. For the American Indians in the border region, the treaty proved disastrous. They could no longer pursue a largely effective strategy to turn the French and British against each other in order to gain the most favourable conditions of the Alliance and preserve their country from the intervention of Anglo-American settlers. On 7 June 1494, the Spanish and Portuguese governments approved the Treaty of Tordesillas, which shared their spheres of influence in the ”New World” of the Americas. Portugal has taken control of all the land and seas west of the Zaragoza Line, including all of Asia and its neighbouring islands, which have been ”discovered” so far, leaving Spain most of the Pacific Ocean behind. Although the Philippines was not mentioned in the treaty, Spain implicitly renounced any claim because it was far west of the line. However, in 1542, King Charles V decided to colonize the Philippines, because he decided that Portugal would not protest because the archipelago had no spices. Although a series of expeditions from New Spain arrived in the Philippines, they were unable to establish a colony, as the route back across the Pacific was unknown. King Philip II succeeded in 1565 when he sent Miguel Lépez de Legazpi and Andrés de Urdaneta, where he founded the first Spanish trading post at Cebu, and founded Manila in 1571.
On 7 June 1494, the Spanish and Portuguese governments approved the Treaty of Tordesillas, named after the spanish city where it was founded. The Treaty of Tordesillas included America`s ”New World” between the two superpowers. Spain and Portugal divided the New World by controlling a north-south line of delimitation in the Atlantic Ocean, about 100 leagues (555 kilometers or 345 miles) west of the Cape Verde Islands, off Northwest Africa and then Portugal. All countries east of this line (about 46 degrees, 37 minutes to the west) have been claimed by Portugal. All the countries west of this line have been claimed by Spain. Spain and Portugal complied with the treaty without major conflict between the two, although the demarcation line was moved by an additional 270 leagues (about 1500 kilometers, or 932 miles) further west in 1506, allowing Portugal to claim the east coast of present-day Brazil. For example, all Latin American countries are predominantly Spanish-speaking countries, with the exception of Brazil, where Portuguese is the national language. This is due to the fact that the eastern tip of Brazil is located east of the demarcation line governed by the Treaty of Tordesillas and that the majority of Portuguese colonization took place. The boundaries of modern Brazil have been contested since the enlargement of the Treaty of Tordesillas in 1506. Spain and Portugal were the only signatories to the treaty because they were the only European powers present in America.
The treaty does not accept the future claims of the British, French and European superpowers of their respective times. The British, French and Dutch empires did not claim part of America until years after the Treaty of Tordesillas. But more importantly, the Treaty of Tordesillas has completely ignored the millions of people who already live in established communities in America. The treaty stipulated that countries with a ”Christian king” should not be colonized. Of course, at that time, Christianity had not spread in America. This meant that if the country was not already claimed by a Christian (European) ruler, Spain and Portugal could, according to the terms of their treaty, claim virtually every country they could conquer in America.