Portuguese maritime exploration in the context of "Portuguese Empire in the East"

The Portuguese Empire was a colonial empire that existed between 1415 and 1999. In conjunction with the Spanish Empire, it ushered in the European Age of Discovery. It achieved a global scale, controlling vast portions of the Americas, Africa and various islands in Asia and Oceania. It was one of the most powerful empires of the early modern period, while at its greatest extent in 1820, covering 5.5 million square km (2.1 million square miles), making it among the largest empires in history. Composed of colonies, factories, and later overseas territories, it was the longest-lived colonial empire in history, from the conquest of Ceuta in North Africa in 1415 to the handover of Macau to China in 1999.

The power and influence of the Kingdom of Portugal would eventually expand across the globe. In the wake of the Reconquista, Portuguese sailors began exploring the coast of Africa and the Atlantic archipelagos in 1418–1419, using recent developments in navigation, cartography, and maritime technology such as the caravel, with the aim of finding a sea route to the source of the lucrative spice trade. In 1488, Bartolomeu Dias rounded the Cape of Good Hope and Cape Agulhas, and in 1498 Vasco da Gama reached India. In 1500, Pedro Álvares Cabral, while on a voyage to India, reached what would later be Brazil.

Vasco da Gama (/ˌvæsku də ˈɡɑːmə, -ɡæmə/ VAS-koo də GA(H)M-ə, European Portuguese: [ˈvaʃku ðɐ ˈɣɐmɐ]; c. 1460s – 24 December 1524) was a Portuguese mariner, explorer and nobleman. His discovery of the first direct maritime route between Europe and India via the Cape of Good Hope and across the Indian Ocean from Malindi in Kenya to Kozhikode was to open up European exploration of, and commerce with, India, and is considered a landmark event and a turning point in World history.

Da Gama's first voyage (1497–1499) was the first to link Europe and Asia using an ocean route that rounded the southern tip of Africa, although he was not the first Portuguese mariner to round the Cape. This route allowed the Portuguese to avoid sailing across the highly disputed Mediterranean Sea and traversing the dangerous Arabian Peninsula. A milestone in Portuguese maritime exploration, this voyage marked the beginning of a sea-based phase of international trade and an age of global imperialism. The Portuguese later established a long-lasting colonial empire along the route from Africa to Asia. The outward and return voyages constituted the longest known ocean voyages ever completed.

The first arrival of European explorers to the territory of present-day Brazil is often credited to Portuguese navigator Pedro Álvares Cabral, who sighted the land later named Island of Vera Cruz, near Monte Pascoal, on 22 April 1500 while leading an expedition to India. Cabral's voyage is part of the so-called Portuguese discoveries.

Although used almost exclusively in relation to Pedro Álvares Cabral's voyage, the term "discovery of Brazil" can also refer to the arrival in late 1499 of part of the expedition led by Alonso de Ojeda, in which Amerigo Vespucci took part, and also to the expedition led by Spanish navigator and explorer Vicente Yáñez Pinzón. He reached the Cape of Santo Agostinho [pt], a promontory located in the current state of Pernambuco, on 26 January 1500. This is the oldest confirmed European landing in Brazilian territory.

The Portuguese Navy (Portuguese: Marinha Portuguesa), also known as the Portuguese War Navy (Marinha de Guerra Portuguesa) or as the Portuguese Armada (Armada Portuguesa), is the navy of the Portuguese Armed Forces. Chartered in 1317 by King Dinis of Portugal, it is the oldest continuously serving navy in the world; in 2017, the Portuguese Navy commemorated the 700th anniversary of its official creation.

The navy played a key role in Portuguese maritime exploration during the Age of Discovery in the 15th and 16th centuries. The result of this technical and scientific discoveries led Portugal to develop advanced ships, including the caravel, new and more sophisticated types of carracks for interoceanic travel and the oceanic galleon, and to find the sea route to the East and routes to South America and Northern North America.