In 86 1 year, King Alfonso of Portugal declared Portugal's independence, but Spain refused to recognize it. To this end, the two countries have experienced more than 300 years of war.
It was not until A.D. 1 143 that Spain recognized Portugal as an independent country. Spanish and Portuguese signed the Treaty of Tolde silas.
According to the provisions of the treaty, draw a dividing line between 4 1 and 45 W. The newly discovered land to the east of the dividing line belongs to the sphere of Portuguese influence, and the newly discovered land to the west belongs to the sphere of Spanish influence.
Extended data:
Portugal and Spain can take the lead in overseas expansion. However, this expansion is not backed by economic strength and motivation, and they lack the shipping industry necessary for trade and the industry that can provide the finished products needed by the American western colonies.
It is a fact that Spanish industry has been promoted for decades because of the sudden development of overseas manufactured goods market. But around 1560, the industrial development stopped, and then began a long-term decline.
One reason is that a large number of gold and silver treasures have flowed into China, causing rapid inflation and putting Spanish industry at a serious disadvantage.
Ironically, the final result of Spain's overseas career is to further stimulate the rapidly developing capitalist economy in northwest Europe. In Iberian Peninsula, it only provided enough wealth, but did not implement the basic system reform.
Powerful princes and nobles do not want to see the development of industry and commerce lead to the rise of new forces, and they even absurdly drive away foreigners engaged in industry and commerce. This is the root cause of Spain's sudden and irreversible decline after decades of prosperity.
References:
Baidu Encyclopedia-Iberian Peninsula