discoveries in the Atlantic: Madeira and the Azores, which led to the first colonization movements.
Throughout the 15th century, Portuguese explorers sailed the coast of Africa, establishing trading posts for several common types of tradable commodities at the time, ranging from gold to slaves, as they looked for a route to India and its spices, which were coveted in Europe.
The Treaty of Tordesillas, intended to resolve the dispute that had been created following the return of Christopher Columbus, was signed on 7 June 1494, and divided the newly discovered lands outside Europe between Portugal and Spain along a meridian 370 leagues west of the Cape Verde islands (off the west coast of Africa).
In 1498, Vasco da Gama finally reached India and brought economic prosperity to Portugal and its population of 1.7 million residents.
In 1500, Pedro Álvares Cabral discovered Brazil and claimed it for Portugal. Ten years later, Afonso de Albuquerque conquered Goa in India, Ormuz in the Persian Strait, and Malacca, now a state in Malaysia. Thus, the Portuguese empire held dominion over commerce in the Indian Ocean and South Atlantic. The Portuguese sailors set out to reach Eastern Asia by sailing eastward from Europe landing in such places as Taiwan, Japan, the island of Timor, they were also the first Europeans to discover Australia and even New Zealand.
The Treaty of Zaragoza, signed on 22 April 1529 between Portugal and Spain, specified the antimeridian to the line of demarcation specified in the Treaty of Tordesillas. All these facts made Portugal the world's major economic, military, and political power from the 15th century to the beginning of the 16th century.
Iberian Union and Restoration
Portugal's independence was interrupted between 1580 and 1640. This occurred because the last two kings of the House of Aviz – King Sebastian, who died in the battle of Alcácer Quibir in Morocco, and his great-uncle and
