Pedro Álvares Cabral in the context of "Portuguese maritime exploration"

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.

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.

Explorers are listed below with their common names, countries of origin (modern and former), centuries of activity and main areas of exploration.

Manuel I (European Portuguese: [mɐnuˈɛl]; 31 May 1469 – 13 December 1521), known as the Fortunate (Portuguese: O Venturoso), was King of Portugal from 1495 to 1521. A member of the House of Aviz, Manuel was Duke of Beja and Viseu prior to succeeding his cousin, John II of Portugal, as monarch. Manuel ruled over a period of intensive expansion of the Portuguese Empire owing to the numerous Portuguese discoveries made during his reign. His sponsorship of Vasco da Gama led to the Portuguese discovery of the sea route to India in 1498, resulting in the creation of the Portuguese India Armadas, which guaranteed Portugal's monopoly on the spice trade. Manuel began the Portuguese colonization of the Americas and Portuguese India, and oversaw the establishment of a vast trade empire across Africa and Asia.

Manuel established the Casa da Índia, a royal institution that managed Portugal's monopolies and its imperial expansion. He financed numerous famed Portuguese navigators, including Pedro Álvares Cabral (who discovered Brazil), Afonso de Albuquerque (who established Portuguese hegemony in the Indian Ocean), among numerous others. The income from Portuguese trade monopolies and colonized lands made Manuel the wealthiest monarch in Europe, allowing him to be one of the great patrons of the Portuguese Renaissance, which produced many significant artistic and literary achievements. Manuel patronized numerous Portuguese intellectuals, including playwright Gil Vicente (called the father of Portuguese and Spanish theatre). The Manueline style, considered Portugal's national architecture, is named for the king.

The European-Asian sea route, commonly known as the sea route to India or the Cape Route, is a shipping route from the European coast of the Atlantic Ocean to Asia's coast of the Indian Ocean passing by the Cape of Good Hope and Cape Agulhas at the southern edge of Africa. The first recorded completion of the route was made in 1498 by Portuguese explorer Vasco da Gama, the admiral of the first Portuguese Armadas bound eastwards to make the discovery. The route was important during the Age of Sail, but became partly obsolete as the Suez Canal opened in 1869.

Year 1500 (MD) was a leap year starting on Wednesday in the Julian calendar. It was the last year of the 15th century. The year 1500 was not a leap year in the proleptic Gregorian calendar.

The year 1500 was seen as being especially important by many Christians in Europe, who thought it would bring the beginning of the end of the world. Their belief was based on the phrase "half-time after the time", when the apocalypse was due to occur, which appears in the Book of Revelation and was seen as referring to 1500. This time was also just after the Old World's discovery of the Americas in 1492, and therefore was influenced greatly by the New World.