The Age of Discovery transformed Portugal into a maritime power whose nautical knowledge had a profound impact on world history. This text examines the technical and scientific advances — navigational instruments, charts, route maps, cosmographers and types of vessels — that made it possible to cross oceans and explore new […]
Tag: Portugal’s Maritime Expansion
Portugal’s Maritime Expansion – The Portuguese in North America
The Portuguese in North America The Portuguese presence in North America dates back to the 15th and 16th centuries, a period marked by intense maritime exploration. Motivated by the search for new trade routes and the desire to expand geographical knowledge, Portuguese navigators were pioneers in various areas of the […]
Portugal’s Maritime Expansion – The discovery of the sea route to India
The discovery of the sea route to India was a decisive milestone in the age of great navigation. At the end of the 15th century, the search for direct trade routes to the rich eastern lands became a priority for European powers, especially Portugal. Driven by the growing demand for […]
Portugal’s Maritime Expansion – Exploration of the West Coast of Africa
The exploration of the west coast of Africa was a milestone in Portuguese maritime expansion in the 15th and 16th centuries, driven by economic, strategic and scientific motivations. The initiative of Prince Henry and the expeditions of navigators such as Gil Eanes, Diogo Cão and Bartolomeu Dias opened up new […]
Portugal’s Maritime Expansion – Discovery of the Atlantic Islands
The Atlantic islands — Madeira, Porto Santo, the Azores and Cape Verde — played a central role in the early days of Portuguese maritime expansion. This text presents their discovery, the model of exploration adopted, the economic activities implemented and the demographic consequences that led to emigration to the mainland […]
Portugal’s Maritime Expansion – Prince Henry the Navigator
Infante Dom Henrique, known as the ‘Navigator,’ was a central figure in the early days of Portuguese discoveries: born in 1394, he participated in the expedition to Ceuta and, as Master of the Order of Christ and 1st Duke of Viseu, founded a centre for nautical studies in the region […]
Portugal’s Maritime Expansion – Navigation before the Discoveries
Navigation before the discoveries was a crucial period in maritime history, marked by innovations and adaptations that paved the way for the great explorations of the 15th century. During this time, Portuguese navigators began to improve their navigation techniques, developing more agile and resistant vessels, such as caravels, which became […]
Portugal’s Maritime Expansion – First Naval Operations
Portugal’s first naval operations marked the beginning of the systematic use of the navy as a military and political instrument. Since the time of Afonso Henriques, ships and coastal pilots began to play a decisive role in combat, sieges of cities and protection of routes, supporting both offensive actions and […]
Portugal’s Maritime Expansion – Fishing as the Origin
Portugal’s Maritime Expansion – Fishing as the origin of navigation The need to fish on the high seas led coastal communities to improve their vessels, navigation techniques, knowledge of winds and currents, and trade networks, which ultimately led to increasingly longer voyages and maritime exploration. 1. Dependence on Fishing Portugal, […]



















