Portugal instance of colonial power
Joanine era and Age of Discoveries
In 1383, John I of Castile, husband of Beatrice of Portugal and son-in-law of Ferdinand I of Portugal, claimed the throne of Portugal. A faction of petty noblemen and commoners, led by John of Aviz (later King John I of Portugal) and commanded by General Nuno Álvares Pereira defeated the Castilians in the Battle of Aljubarrota. With this battle, the House of Aviz became the ruling house of Portugal.
The new ruling dynasty would proceed to push Portugal to the limelight of European politics and culture, creating and sponsoring works of literature, like the Crónicas d'el Rei D. João I by Fernão Lopes, the first riding and hunting manual Livro da ensinança de bem cavalgar toda sela and O Leal Conselheiro both by King Edward of Portugal and the Portuguese translations of Cicero's De Oficiis and Seneca's De Beneficiis by the well traveled Prince Peter of Coimbra, as well as his magnum opus Tratado da Vertuosa Benfeytoria. In an effort of solidification and centralization of royal power the monarchs of this dynasty also ordered the compilation, organization and publication of the first three compilations of laws in Portugal: the Ordenações d'el Rei D. Duarte, which was never enforced; the Ordenações Afonsinas, whose application and enforcement was not uniform across the realm; and the Ordenações Manuelinas, which took advantage of the printing press to reach every corner of the kingdom. The Avis Dynasty also sponsored works of architecture like the Mosteiro da Batalha (literally, the Monastery of the Battle) and led to the creation of the manueline style of architecture in the 16th century.
Portugal also spearheaded European exploration of the world and the Age of Discovery. Prince Henry the Navigator, son of King John I of Portugal, became the main sponsor and patron of this endeavour. During this period, Portugal explored the Atlantic Ocean, discovering the Atlantic archipelagos the Azores, Madeira, and Cape Verde; explored the African coast; colonized selected areas of Africa; discovered an eastern route to India via the Cape of Good Hope; discovered Brazil, explored the Indian Ocean, established trading routes throughout most of southern Asia; and sent the first direct European maritime trade and diplomatic missions to China and Japan.
In 1415, Portugal acquired the first of its overseas colonies by conquering Ceuta, the first prosperous Islamic trade centre in North Africa. There followed the first discoveries in the Atlantic: Madeira and the Azores, which led to the first colonization movements.
In 1422, by decree of King John I, Portugal officially abandoned the previous dating system, the Era of Caesar, and adopted the Anno Domini system, therefore becoming the last catholic realm to do so.
type of example of manifestation of representation of